From a413908dd064de6e3ea5b8d95d707a532bd3f4c8 Mon Sep 17 00:00:00 2001 From: Cherry Zhang Date: Wed, 16 Sep 2020 16:59:58 -0400 Subject: all: add GOOS=ios Introduce GOOS=ios for iOS systems. GOOS=ios matches "darwin" build tag, like GOOS=android matches "linux" and GOOS=illumos matches "solaris". Only ios/arm64 is supported (ios/amd64 is not). GOOS=ios and GOOS=darwin remain essentially the same at this point. They will diverge at later time, to differentiate macOS and iOS. Uses of GOOS=="darwin" are changed to (GOOS=="darwin" || GOOS=="ios"), except if it clearly means macOS (e.g. GOOS=="darwin" && GOARCH=="amd64"), it remains GOOS=="darwin". Updates #38485. Change-Id: I4faacdc1008f42434599efb3c3ad90763a83b67c Reviewed-on: https://go-review.googlesource.com/c/go/+/254740 Trust: Cherry Zhang Run-TryBot: Cherry Zhang TryBot-Result: Go Bot Reviewed-by: Austin Clements --- src/runtime/internal/sys/gengoos.go | 9 +++++++++ src/runtime/internal/sys/zgoos_aix.go | 1 + src/runtime/internal/sys/zgoos_android.go | 1 + src/runtime/internal/sys/zgoos_darwin.go | 2 ++ src/runtime/internal/sys/zgoos_dragonfly.go | 1 + src/runtime/internal/sys/zgoos_freebsd.go | 1 + src/runtime/internal/sys/zgoos_hurd.go | 1 + src/runtime/internal/sys/zgoos_illumos.go | 1 + src/runtime/internal/sys/zgoos_ios.go | 25 +++++++++++++++++++++++++ src/runtime/internal/sys/zgoos_js.go | 1 + src/runtime/internal/sys/zgoos_linux.go | 1 + src/runtime/internal/sys/zgoos_netbsd.go | 1 + src/runtime/internal/sys/zgoos_openbsd.go | 1 + src/runtime/internal/sys/zgoos_plan9.go | 1 + src/runtime/internal/sys/zgoos_solaris.go | 1 + src/runtime/internal/sys/zgoos_windows.go | 1 + src/runtime/internal/sys/zgoos_zos.go | 1 + 17 files changed, 50 insertions(+) create mode 100644 src/runtime/internal/sys/zgoos_ios.go (limited to 'src/runtime/internal') diff --git a/src/runtime/internal/sys/gengoos.go b/src/runtime/internal/sys/gengoos.go index 952b13649d..2a4bf0c3b4 100644 --- a/src/runtime/internal/sys/gengoos.go +++ b/src/runtime/internal/sys/gengoos.go @@ -44,6 +44,9 @@ func main() { } for _, target := range gooses { + if target == "nacl" { + continue + } var buf bytes.Buffer fmt.Fprintf(&buf, "// Code generated by gengoos.go using 'go generate'. DO NOT EDIT.\n\n") if target == "linux" { @@ -52,6 +55,9 @@ func main() { if target == "solaris" { fmt.Fprintf(&buf, "// +build !illumos\n") // must explicitly exclude illumos for solaris } + if target == "darwin" { + fmt.Fprintf(&buf, "// +build !ios\n") // must explicitly exclude ios for darwin + } fmt.Fprintf(&buf, "// +build %s\n\n", target) // must explicitly include target for bootstrapping purposes fmt.Fprintf(&buf, "package sys\n\n") fmt.Fprintf(&buf, "const GOOS = `%s`\n\n", target) @@ -69,6 +75,9 @@ func main() { } for _, target := range goarches { + if target == "amd64p32" { + continue + } var buf bytes.Buffer fmt.Fprintf(&buf, "// Code generated by gengoos.go using 'go generate'. DO NOT EDIT.\n\n") fmt.Fprintf(&buf, "// +build %s\n\n", target) // must explicitly include target for bootstrapping purposes diff --git a/src/runtime/internal/sys/zgoos_aix.go b/src/runtime/internal/sys/zgoos_aix.go index d97485c43c..0631d02aa5 100644 --- a/src/runtime/internal/sys/zgoos_aix.go +++ b/src/runtime/internal/sys/zgoos_aix.go @@ -13,6 +13,7 @@ const GoosDragonfly = 0 const GoosFreebsd = 0 const GoosHurd = 0 const GoosIllumos = 0 +const GoosIos = 0 const GoosJs = 0 const GoosLinux = 0 const GoosNacl = 0 diff --git a/src/runtime/internal/sys/zgoos_android.go b/src/runtime/internal/sys/zgoos_android.go index eec970b064..d356a40bec 100644 --- a/src/runtime/internal/sys/zgoos_android.go +++ b/src/runtime/internal/sys/zgoos_android.go @@ -13,6 +13,7 @@ const GoosDragonfly = 0 const GoosFreebsd = 0 const GoosHurd = 0 const GoosIllumos = 0 +const GoosIos = 0 const GoosJs = 0 const GoosLinux = 0 const GoosNacl = 0 diff --git a/src/runtime/internal/sys/zgoos_darwin.go b/src/runtime/internal/sys/zgoos_darwin.go index c40819ee55..6aa2db7e3a 100644 --- a/src/runtime/internal/sys/zgoos_darwin.go +++ b/src/runtime/internal/sys/zgoos_darwin.go @@ -1,5 +1,6 @@ // Code generated by gengoos.go using 'go generate'. DO NOT EDIT. +// +build !ios // +build darwin package sys @@ -13,6 +14,7 @@ const GoosDragonfly = 0 const GoosFreebsd = 0 const GoosHurd = 0 const GoosIllumos = 0 +const GoosIos = 0 const GoosJs = 0 const GoosLinux = 0 const GoosNacl = 0 diff --git a/src/runtime/internal/sys/zgoos_dragonfly.go b/src/runtime/internal/sys/zgoos_dragonfly.go index 3dc4edcc31..88ee1174f1 100644 --- a/src/runtime/internal/sys/zgoos_dragonfly.go +++ b/src/runtime/internal/sys/zgoos_dragonfly.go @@ -13,6 +13,7 @@ const GoosDragonfly = 1 const GoosFreebsd = 0 const GoosHurd = 0 const GoosIllumos = 0 +const GoosIos = 0 const GoosJs = 0 const GoosLinux = 0 const GoosNacl = 0 diff --git a/src/runtime/internal/sys/zgoos_freebsd.go b/src/runtime/internal/sys/zgoos_freebsd.go index 6c98b342f9..8de2ec0559 100644 --- a/src/runtime/internal/sys/zgoos_freebsd.go +++ b/src/runtime/internal/sys/zgoos_freebsd.go @@ -13,6 +13,7 @@ const GoosDragonfly = 0 const GoosFreebsd = 1 const GoosHurd = 0 const GoosIllumos = 0 +const GoosIos = 0 const GoosJs = 0 const GoosLinux = 0 const GoosNacl = 0 diff --git a/src/runtime/internal/sys/zgoos_hurd.go b/src/runtime/internal/sys/zgoos_hurd.go index d6dcc7bad4..183ccb02a1 100644 --- a/src/runtime/internal/sys/zgoos_hurd.go +++ b/src/runtime/internal/sys/zgoos_hurd.go @@ -13,6 +13,7 @@ const GoosDragonfly = 0 const GoosFreebsd = 0 const GoosHurd = 1 const GoosIllumos = 0 +const GoosIos = 0 const GoosJs = 0 const GoosLinux = 0 const GoosNacl = 0 diff --git a/src/runtime/internal/sys/zgoos_illumos.go b/src/runtime/internal/sys/zgoos_illumos.go index 17f4ecc34e..d04134e1df 100644 --- a/src/runtime/internal/sys/zgoos_illumos.go +++ b/src/runtime/internal/sys/zgoos_illumos.go @@ -13,6 +13,7 @@ const GoosDragonfly = 0 const GoosFreebsd = 0 const GoosHurd = 0 const GoosIllumos = 1 +const GoosIos = 0 const GoosJs = 0 const GoosLinux = 0 const GoosNacl = 0 diff --git a/src/runtime/internal/sys/zgoos_ios.go b/src/runtime/internal/sys/zgoos_ios.go new file mode 100644 index 0000000000..cf6e9d61f0 --- /dev/null +++ b/src/runtime/internal/sys/zgoos_ios.go @@ -0,0 +1,25 @@ +// Code generated by gengoos.go using 'go generate'. DO NOT EDIT. + +// +build ios + +package sys + +const GOOS = `ios` + +const GoosAix = 0 +const GoosAndroid = 0 +const GoosDarwin = 0 +const GoosDragonfly = 0 +const GoosFreebsd = 0 +const GoosHurd = 0 +const GoosIllumos = 0 +const GoosIos = 1 +const GoosJs = 0 +const GoosLinux = 0 +const GoosNacl = 0 +const GoosNetbsd = 0 +const GoosOpenbsd = 0 +const GoosPlan9 = 0 +const GoosSolaris = 0 +const GoosWindows = 0 +const GoosZos = 0 diff --git a/src/runtime/internal/sys/zgoos_js.go b/src/runtime/internal/sys/zgoos_js.go index 74c9943d9b..1d9279ab38 100644 --- a/src/runtime/internal/sys/zgoos_js.go +++ b/src/runtime/internal/sys/zgoos_js.go @@ -13,6 +13,7 @@ const GoosDragonfly = 0 const GoosFreebsd = 0 const GoosHurd = 0 const GoosIllumos = 0 +const GoosIos = 0 const GoosJs = 1 const GoosLinux = 0 const GoosNacl = 0 diff --git a/src/runtime/internal/sys/zgoos_linux.go b/src/runtime/internal/sys/zgoos_linux.go index 1d5fcb0685..0f718d704f 100644 --- a/src/runtime/internal/sys/zgoos_linux.go +++ b/src/runtime/internal/sys/zgoos_linux.go @@ -14,6 +14,7 @@ const GoosDragonfly = 0 const GoosFreebsd = 0 const GoosHurd = 0 const GoosIllumos = 0 +const GoosIos = 0 const GoosJs = 0 const GoosLinux = 1 const GoosNacl = 0 diff --git a/src/runtime/internal/sys/zgoos_netbsd.go b/src/runtime/internal/sys/zgoos_netbsd.go index 194fa6e432..2ae149ff13 100644 --- a/src/runtime/internal/sys/zgoos_netbsd.go +++ b/src/runtime/internal/sys/zgoos_netbsd.go @@ -13,6 +13,7 @@ const GoosDragonfly = 0 const GoosFreebsd = 0 const GoosHurd = 0 const GoosIllumos = 0 +const GoosIos = 0 const GoosJs = 0 const GoosLinux = 0 const GoosNacl = 0 diff --git a/src/runtime/internal/sys/zgoos_openbsd.go b/src/runtime/internal/sys/zgoos_openbsd.go index 2108691679..7d4d61e4ca 100644 --- a/src/runtime/internal/sys/zgoos_openbsd.go +++ b/src/runtime/internal/sys/zgoos_openbsd.go @@ -13,6 +13,7 @@ const GoosDragonfly = 0 const GoosFreebsd = 0 const GoosHurd = 0 const GoosIllumos = 0 +const GoosIos = 0 const GoosJs = 0 const GoosLinux = 0 const GoosNacl = 0 diff --git a/src/runtime/internal/sys/zgoos_plan9.go b/src/runtime/internal/sys/zgoos_plan9.go index e632a90b2e..30aec46df3 100644 --- a/src/runtime/internal/sys/zgoos_plan9.go +++ b/src/runtime/internal/sys/zgoos_plan9.go @@ -13,6 +13,7 @@ const GoosDragonfly = 0 const GoosFreebsd = 0 const GoosHurd = 0 const GoosIllumos = 0 +const GoosIos = 0 const GoosJs = 0 const GoosLinux = 0 const GoosNacl = 0 diff --git a/src/runtime/internal/sys/zgoos_solaris.go b/src/runtime/internal/sys/zgoos_solaris.go index 67b2ffbfcd..4bb8c99bce 100644 --- a/src/runtime/internal/sys/zgoos_solaris.go +++ b/src/runtime/internal/sys/zgoos_solaris.go @@ -14,6 +14,7 @@ const GoosDragonfly = 0 const GoosFreebsd = 0 const GoosHurd = 0 const GoosIllumos = 0 +const GoosIos = 0 const GoosJs = 0 const GoosLinux = 0 const GoosNacl = 0 diff --git a/src/runtime/internal/sys/zgoos_windows.go b/src/runtime/internal/sys/zgoos_windows.go index cf2d6f4fb0..d1f4290204 100644 --- a/src/runtime/internal/sys/zgoos_windows.go +++ b/src/runtime/internal/sys/zgoos_windows.go @@ -13,6 +13,7 @@ const GoosDragonfly = 0 const GoosFreebsd = 0 const GoosHurd = 0 const GoosIllumos = 0 +const GoosIos = 0 const GoosJs = 0 const GoosLinux = 0 const GoosNacl = 0 diff --git a/src/runtime/internal/sys/zgoos_zos.go b/src/runtime/internal/sys/zgoos_zos.go index e5d79accb4..d22be46fc0 100644 --- a/src/runtime/internal/sys/zgoos_zos.go +++ b/src/runtime/internal/sys/zgoos_zos.go @@ -13,6 +13,7 @@ const GoosDragonfly = 0 const GoosFreebsd = 0 const GoosHurd = 0 const GoosIllumos = 0 +const GoosIos = 0 const GoosJs = 0 const GoosLinux = 0 const GoosNacl = 0 -- cgit v1.3 From afba990169f41d9026c923da5235584db32cab67 Mon Sep 17 00:00:00 2001 From: Austin Clements Date: Thu, 15 Oct 2020 16:11:10 -0400 Subject: runtime/internal/atomic: drop package prefixes This drops package prefixes from the assembly code on 386 and arm. In addition to just being nicer, this allows the assembler to automatically pick up the argument stack map from the Go signatures of these functions. This doesn't matter right now because these functions never call back out to Go, but prepares us for the next CL. Change-Id: I90fed7d4dd63ad49274529c62804211b6390e2e9 Reviewed-on: https://go-review.googlesource.com/c/go/+/262777 Trust: Austin Clements Run-TryBot: Austin Clements TryBot-Result: Go Bot Reviewed-by: Cherry Zhang Reviewed-by: Michael Knyszek --- src/runtime/funcdata.h | 6 +-- src/runtime/internal/atomic/asm_386.s | 76 ++++++++++++++++----------------- src/runtime/internal/atomic/asm_arm.s | 80 +++++++++++++++++------------------ 3 files changed, 81 insertions(+), 81 deletions(-) (limited to 'src/runtime/internal') diff --git a/src/runtime/funcdata.h b/src/runtime/funcdata.h index 0fb50ddfba..cd76c06992 100644 --- a/src/runtime/funcdata.h +++ b/src/runtime/funcdata.h @@ -32,9 +32,9 @@ // defines the pointer map for the function's arguments. // GO_ARGS should be the first instruction in a function that uses it. // It can be omitted if there are no arguments at all. -// GO_ARGS is inserted implicitly by the linker for any function -// that also has a Go prototype and therefore is usually not necessary -// to write explicitly. +// GO_ARGS is inserted implicitly by the linker for any function whose +// name starts with a middle-dot and that also has a Go prototype; it +// is therefore usually not necessary to write explicitly. #define GO_ARGS FUNCDATA $FUNCDATA_ArgsPointerMaps, go_args_stackmap(SB) // GO_RESULTS_INITIALIZED indicates that the assembly function diff --git a/src/runtime/internal/atomic/asm_386.s b/src/runtime/internal/atomic/asm_386.s index 9b9dc14a60..357ca95625 100644 --- a/src/runtime/internal/atomic/asm_386.s +++ b/src/runtime/internal/atomic/asm_386.s @@ -11,7 +11,7 @@ // return 1; // }else // return 0; -TEXT runtime∕internal∕atomic·Cas(SB), NOSPLIT, $0-13 +TEXT ·Cas(SB), NOSPLIT, $0-13 MOVL ptr+0(FP), BX MOVL old+4(FP), AX MOVL new+8(FP), CX @@ -20,32 +20,32 @@ TEXT runtime∕internal∕atomic·Cas(SB), NOSPLIT, $0-13 SETEQ ret+12(FP) RET -TEXT runtime∕internal∕atomic·Casuintptr(SB), NOSPLIT, $0-13 - JMP runtime∕internal∕atomic·Cas(SB) +TEXT ·Casuintptr(SB), NOSPLIT, $0-13 + JMP ·Cas(SB) -TEXT runtime∕internal∕atomic·CasRel(SB), NOSPLIT, $0-13 - JMP runtime∕internal∕atomic·Cas(SB) +TEXT ·CasRel(SB), NOSPLIT, $0-13 + JMP ·Cas(SB) -TEXT runtime∕internal∕atomic·Loaduintptr(SB), NOSPLIT, $0-8 - JMP runtime∕internal∕atomic·Load(SB) +TEXT ·Loaduintptr(SB), NOSPLIT, $0-8 + JMP ·Load(SB) -TEXT runtime∕internal∕atomic·Loaduint(SB), NOSPLIT, $0-8 - JMP runtime∕internal∕atomic·Load(SB) +TEXT ·Loaduint(SB), NOSPLIT, $0-8 + JMP ·Load(SB) -TEXT runtime∕internal∕atomic·Storeuintptr(SB), NOSPLIT, $0-8 - JMP runtime∕internal∕atomic·Store(SB) +TEXT ·Storeuintptr(SB), NOSPLIT, $0-8 + JMP ·Store(SB) -TEXT runtime∕internal∕atomic·Xadduintptr(SB), NOSPLIT, $0-12 - JMP runtime∕internal∕atomic·Xadd(SB) +TEXT ·Xadduintptr(SB), NOSPLIT, $0-12 + JMP ·Xadd(SB) -TEXT runtime∕internal∕atomic·Loadint64(SB), NOSPLIT, $0-12 - JMP runtime∕internal∕atomic·Load64(SB) +TEXT ·Loadint64(SB), NOSPLIT, $0-12 + JMP ·Load64(SB) -TEXT runtime∕internal∕atomic·Xaddint64(SB), NOSPLIT, $0-20 - JMP runtime∕internal∕atomic·Xadd64(SB) +TEXT ·Xaddint64(SB), NOSPLIT, $0-20 + JMP ·Xadd64(SB) -// bool runtime∕internal∕atomic·Cas64(uint64 *val, uint64 old, uint64 new) +// bool ·Cas64(uint64 *val, uint64 old, uint64 new) // Atomically: // if(*val == *old){ // *val = new; @@ -53,7 +53,7 @@ TEXT runtime∕internal∕atomic·Xaddint64(SB), NOSPLIT, $0-20 // } else { // return 0; // } -TEXT runtime∕internal∕atomic·Cas64(SB), NOSPLIT, $0-21 +TEXT ·Cas64(SB), NOSPLIT, $0-21 MOVL ptr+0(FP), BP TESTL $7, BP JZ 2(PC) @@ -74,7 +74,7 @@ TEXT runtime∕internal∕atomic·Cas64(SB), NOSPLIT, $0-21 // return 1; // }else // return 0; -TEXT runtime∕internal∕atomic·Casp1(SB), NOSPLIT, $0-13 +TEXT ·Casp1(SB), NOSPLIT, $0-13 MOVL ptr+0(FP), BX MOVL old+4(FP), AX MOVL new+8(FP), CX @@ -87,7 +87,7 @@ TEXT runtime∕internal∕atomic·Casp1(SB), NOSPLIT, $0-13 // Atomically: // *val += delta; // return *val; -TEXT runtime∕internal∕atomic·Xadd(SB), NOSPLIT, $0-12 +TEXT ·Xadd(SB), NOSPLIT, $0-12 MOVL ptr+0(FP), BX MOVL delta+4(FP), AX MOVL AX, CX @@ -97,7 +97,7 @@ TEXT runtime∕internal∕atomic·Xadd(SB), NOSPLIT, $0-12 MOVL AX, ret+8(FP) RET -TEXT runtime∕internal∕atomic·Xadd64(SB), NOSPLIT, $0-20 +TEXT ·Xadd64(SB), NOSPLIT, $0-20 // no XADDQ so use CMPXCHG8B loop MOVL ptr+0(FP), BP TESTL $7, BP @@ -133,17 +133,17 @@ addloop: MOVL CX, ret_hi+16(FP) RET -TEXT runtime∕internal∕atomic·Xchg(SB), NOSPLIT, $0-12 +TEXT ·Xchg(SB), NOSPLIT, $0-12 MOVL ptr+0(FP), BX MOVL new+4(FP), AX XCHGL AX, 0(BX) MOVL AX, ret+8(FP) RET -TEXT runtime∕internal∕atomic·Xchguintptr(SB), NOSPLIT, $0-12 - JMP runtime∕internal∕atomic·Xchg(SB) +TEXT ·Xchguintptr(SB), NOSPLIT, $0-12 + JMP ·Xchg(SB) -TEXT runtime∕internal∕atomic·Xchg64(SB),NOSPLIT,$0-20 +TEXT ·Xchg64(SB),NOSPLIT,$0-20 // no XCHGQ so use CMPXCHG8B loop MOVL ptr+0(FP), BP TESTL $7, BP @@ -171,23 +171,23 @@ swaploop: MOVL DX, ret_hi+16(FP) RET -TEXT runtime∕internal∕atomic·StorepNoWB(SB), NOSPLIT, $0-8 +TEXT ·StorepNoWB(SB), NOSPLIT, $0-8 MOVL ptr+0(FP), BX MOVL val+4(FP), AX XCHGL AX, 0(BX) RET -TEXT runtime∕internal∕atomic·Store(SB), NOSPLIT, $0-8 +TEXT ·Store(SB), NOSPLIT, $0-8 MOVL ptr+0(FP), BX MOVL val+4(FP), AX XCHGL AX, 0(BX) RET -TEXT runtime∕internal∕atomic·StoreRel(SB), NOSPLIT, $0-8 - JMP runtime∕internal∕atomic·Store(SB) +TEXT ·StoreRel(SB), NOSPLIT, $0-8 + JMP ·Store(SB) // uint64 atomicload64(uint64 volatile* addr); -TEXT runtime∕internal∕atomic·Load64(SB), NOSPLIT, $0-12 +TEXT ·Load64(SB), NOSPLIT, $0-12 MOVL ptr+0(FP), AX TESTL $7, AX JZ 2(PC) @@ -197,8 +197,8 @@ TEXT runtime∕internal∕atomic·Load64(SB), NOSPLIT, $0-12 EMMS RET -// void runtime∕internal∕atomic·Store64(uint64 volatile* addr, uint64 v); -TEXT runtime∕internal∕atomic·Store64(SB), NOSPLIT, $0-12 +// void ·Store64(uint64 volatile* addr, uint64 v); +TEXT ·Store64(SB), NOSPLIT, $0-12 MOVL ptr+0(FP), AX TESTL $7, AX JZ 2(PC) @@ -214,23 +214,23 @@ TEXT runtime∕internal∕atomic·Store64(SB), NOSPLIT, $0-12 XADDL AX, (SP) RET -// void runtime∕internal∕atomic·Or8(byte volatile*, byte); -TEXT runtime∕internal∕atomic·Or8(SB), NOSPLIT, $0-5 +// void ·Or8(byte volatile*, byte); +TEXT ·Or8(SB), NOSPLIT, $0-5 MOVL ptr+0(FP), AX MOVB val+4(FP), BX LOCK ORB BX, (AX) RET -// void runtime∕internal∕atomic·And8(byte volatile*, byte); -TEXT runtime∕internal∕atomic·And8(SB), NOSPLIT, $0-5 +// void ·And8(byte volatile*, byte); +TEXT ·And8(SB), NOSPLIT, $0-5 MOVL ptr+0(FP), AX MOVB val+4(FP), BX LOCK ANDB BX, (AX) RET -TEXT runtime∕internal∕atomic·Store8(SB), NOSPLIT, $0-5 +TEXT ·Store8(SB), NOSPLIT, $0-5 MOVL ptr+0(FP), BX MOVB val+4(FP), AX XCHGB AX, 0(BX) diff --git a/src/runtime/internal/atomic/asm_arm.s b/src/runtime/internal/atomic/asm_arm.s index d4ef11560e..db1267423d 100644 --- a/src/runtime/internal/atomic/asm_arm.s +++ b/src/runtime/internal/atomic/asm_arm.s @@ -12,13 +12,13 @@ // }else // return 0; // -// To implement runtime∕internal∕atomic·cas in sys_$GOOS_arm.s +// To implement ·cas in sys_$GOOS_arm.s // using the native instructions, use: // -// TEXT runtime∕internal∕atomic·cas(SB),NOSPLIT,$0 -// B runtime∕internal∕atomic·armcas(SB) +// TEXT ·cas(SB),NOSPLIT,$0 +// B ·armcas(SB) // -TEXT runtime∕internal∕atomic·armcas(SB),NOSPLIT,$0-13 +TEXT ·armcas(SB),NOSPLIT,$0-13 MOVW ptr+0(FP), R1 MOVW old+4(FP), R2 MOVW new+8(FP), R3 @@ -50,44 +50,44 @@ casfail: // stubs -TEXT runtime∕internal∕atomic·Loadp(SB),NOSPLIT|NOFRAME,$0-8 - B runtime∕internal∕atomic·Load(SB) +TEXT ·Loadp(SB),NOSPLIT|NOFRAME,$0-8 + B ·Load(SB) -TEXT runtime∕internal∕atomic·LoadAcq(SB),NOSPLIT|NOFRAME,$0-8 - B runtime∕internal∕atomic·Load(SB) +TEXT ·LoadAcq(SB),NOSPLIT|NOFRAME,$0-8 + B ·Load(SB) -TEXT runtime∕internal∕atomic·Casuintptr(SB),NOSPLIT,$0-13 - B runtime∕internal∕atomic·Cas(SB) +TEXT ·Casuintptr(SB),NOSPLIT,$0-13 + B ·Cas(SB) -TEXT runtime∕internal∕atomic·Casp1(SB),NOSPLIT,$0-13 - B runtime∕internal∕atomic·Cas(SB) +TEXT ·Casp1(SB),NOSPLIT,$0-13 + B ·Cas(SB) -TEXT runtime∕internal∕atomic·CasRel(SB),NOSPLIT,$0-13 - B runtime∕internal∕atomic·Cas(SB) +TEXT ·CasRel(SB),NOSPLIT,$0-13 + B ·Cas(SB) -TEXT runtime∕internal∕atomic·Loaduintptr(SB),NOSPLIT,$0-8 - B runtime∕internal∕atomic·Load(SB) +TEXT ·Loaduintptr(SB),NOSPLIT,$0-8 + B ·Load(SB) -TEXT runtime∕internal∕atomic·Loaduint(SB),NOSPLIT,$0-8 - B runtime∕internal∕atomic·Load(SB) +TEXT ·Loaduint(SB),NOSPLIT,$0-8 + B ·Load(SB) -TEXT runtime∕internal∕atomic·Storeuintptr(SB),NOSPLIT,$0-8 - B runtime∕internal∕atomic·Store(SB) +TEXT ·Storeuintptr(SB),NOSPLIT,$0-8 + B ·Store(SB) -TEXT runtime∕internal∕atomic·StorepNoWB(SB),NOSPLIT,$0-8 - B runtime∕internal∕atomic·Store(SB) +TEXT ·StorepNoWB(SB),NOSPLIT,$0-8 + B ·Store(SB) -TEXT runtime∕internal∕atomic·StoreRel(SB),NOSPLIT,$0-8 - B runtime∕internal∕atomic·Store(SB) +TEXT ·StoreRel(SB),NOSPLIT,$0-8 + B ·Store(SB) -TEXT runtime∕internal∕atomic·Xadduintptr(SB),NOSPLIT,$0-12 - B runtime∕internal∕atomic·Xadd(SB) +TEXT ·Xadduintptr(SB),NOSPLIT,$0-12 + B ·Xadd(SB) -TEXT runtime∕internal∕atomic·Loadint64(SB),NOSPLIT,$0-12 - B runtime∕internal∕atomic·Load64(SB) +TEXT ·Loadint64(SB),NOSPLIT,$0-12 + B ·Load64(SB) -TEXT runtime∕internal∕atomic·Xaddint64(SB),NOSPLIT,$0-20 - B runtime∕internal∕atomic·Xadd64(SB) +TEXT ·Xaddint64(SB),NOSPLIT,$0-20 + B ·Xadd64(SB) // 64-bit atomics // The native ARM implementations use LDREXD/STREXD, which are @@ -95,7 +95,7 @@ TEXT runtime∕internal∕atomic·Xaddint64(SB),NOSPLIT,$0-20 // On older ARM, we use Go implementations which simulate 64-bit // atomics with locks. -TEXT armCas64<>(SB),NOSPLIT,$0-21 +TEXT armCas64<>(SB),NOSPLIT,$0-21 MOVW addr+0(FP), R1 // make unaligned atomic access panic AND.S $7, R1, R2 @@ -128,7 +128,7 @@ cas64fail: MOVBU R0, swapped+20(FP) RET -TEXT armXadd64<>(SB),NOSPLIT,$0-20 +TEXT armXadd64<>(SB),NOSPLIT,$0-20 MOVW addr+0(FP), R1 // make unaligned atomic access panic AND.S $7, R1, R2 @@ -154,7 +154,7 @@ add64loop: MOVW R5, new_hi+16(FP) RET -TEXT armXchg64<>(SB),NOSPLIT,$0-20 +TEXT armXchg64<>(SB),NOSPLIT,$0-20 MOVW addr+0(FP), R1 // make unaligned atomic access panic AND.S $7, R1, R2 @@ -178,7 +178,7 @@ swap64loop: MOVW R5, old_hi+16(FP) RET -TEXT armLoad64<>(SB),NOSPLIT,$0-12 +TEXT armLoad64<>(SB),NOSPLIT,$0-12 MOVW addr+0(FP), R1 // make unaligned atomic access panic AND.S $7, R1, R2 @@ -192,7 +192,7 @@ TEXT armLoad64<>(SB),NOSPLIT,$0-12 MOVW R3, val_hi+8(FP) RET -TEXT armStore64<>(SB),NOSPLIT,$0-12 +TEXT armStore64<>(SB),NOSPLIT,$0-12 MOVW addr+0(FP), R1 // make unaligned atomic access panic AND.S $7, R1, R2 @@ -213,35 +213,35 @@ store64loop: DMB MB_ISH RET -TEXT ·Cas64(SB),NOSPLIT,$0-21 +TEXT ·Cas64(SB),NOSPLIT,$0-21 MOVB runtime·goarm(SB), R11 CMP $7, R11 BLT 2(PC) JMP armCas64<>(SB) JMP ·goCas64(SB) -TEXT ·Xadd64(SB),NOSPLIT,$0-20 +TEXT ·Xadd64(SB),NOSPLIT,$0-20 MOVB runtime·goarm(SB), R11 CMP $7, R11 BLT 2(PC) JMP armXadd64<>(SB) JMP ·goXadd64(SB) -TEXT ·Xchg64(SB),NOSPLIT,$0-20 +TEXT ·Xchg64(SB),NOSPLIT,$0-20 MOVB runtime·goarm(SB), R11 CMP $7, R11 BLT 2(PC) JMP armXchg64<>(SB) JMP ·goXchg64(SB) -TEXT ·Load64(SB),NOSPLIT,$0-12 +TEXT ·Load64(SB),NOSPLIT,$0-12 MOVB runtime·goarm(SB), R11 CMP $7, R11 BLT 2(PC) JMP armLoad64<>(SB) JMP ·goLoad64(SB) -TEXT ·Store64(SB),NOSPLIT,$0-12 +TEXT ·Store64(SB),NOSPLIT,$0-12 MOVB runtime·goarm(SB), R11 CMP $7, R11 BLT 2(PC) -- cgit v1.3 From 83317d9e3cb0674f71d1118d8814aefb31ac1239 Mon Sep 17 00:00:00 2001 From: Austin Clements Date: Thu, 15 Oct 2020 15:52:58 -0400 Subject: runtime/internal/atomic: panic nicely on unaligned 64-bit atomics On 386 and arm, unaligned 64-bit atomics aren't safe, so we check for this and panic. Currently, we panic by dereferencing nil, which may be expedient but is pretty user-hostile since it gives no hint of what the actual problem was. This CL replaces this with an actual panic. The only subtlety here is now the atomic assembly implementations are calling back into Go, so they have to play nicely with stack maps and stack scanning. On 386, this just requires declaring NO_LOCAL_POINTERS. On arm, this is somewhat more complicated: first, we have to move the alignment check into the functions that have Go signatures. Then we have to support both the tail call from these functions to the underlying implementation (which requires that they have no frame) and the call into Go to panic (which requires that they have a frame). We resolve this by forcing them to have no frame and setting up the frame manually just before the panic call. Change-Id: I19f1e860045df64088013db37a18acea47342c69 Reviewed-on: https://go-review.googlesource.com/c/go/+/262778 Trust: Austin Clements Run-TryBot: Austin Clements TryBot-Result: Go Bot Reviewed-by: Cherry Zhang Reviewed-by: Michael Knyszek --- src/runtime/internal/atomic/asm_386.s | 17 ++++-- src/runtime/internal/atomic/asm_arm.s | 89 +++++++++++++++++++---------- src/runtime/internal/atomic/atomic_mipsx.go | 2 +- src/runtime/internal/atomic/atomic_test.go | 9 ++- src/runtime/internal/atomic/unaligned.go | 9 +++ src/sync/atomic/atomic_test.go | 9 ++- 6 files changed, 96 insertions(+), 39 deletions(-) create mode 100644 src/runtime/internal/atomic/unaligned.go (limited to 'src/runtime/internal') diff --git a/src/runtime/internal/atomic/asm_386.s b/src/runtime/internal/atomic/asm_386.s index 357ca95625..bcefff373f 100644 --- a/src/runtime/internal/atomic/asm_386.s +++ b/src/runtime/internal/atomic/asm_386.s @@ -3,6 +3,7 @@ // license that can be found in the LICENSE file. #include "textflag.h" +#include "funcdata.h" // bool Cas(int32 *val, int32 old, int32 new) // Atomically: @@ -44,7 +45,6 @@ TEXT ·Loadint64(SB), NOSPLIT, $0-12 TEXT ·Xaddint64(SB), NOSPLIT, $0-20 JMP ·Xadd64(SB) - // bool ·Cas64(uint64 *val, uint64 old, uint64 new) // Atomically: // if(*val == *old){ @@ -54,10 +54,11 @@ TEXT ·Xaddint64(SB), NOSPLIT, $0-20 // return 0; // } TEXT ·Cas64(SB), NOSPLIT, $0-21 + NO_LOCAL_POINTERS MOVL ptr+0(FP), BP TESTL $7, BP JZ 2(PC) - MOVL 0, BP // crash with nil ptr deref + CALL ·panicUnaligned(SB) MOVL old_lo+4(FP), AX MOVL old_hi+8(FP), DX MOVL new_lo+12(FP), BX @@ -98,11 +99,12 @@ TEXT ·Xadd(SB), NOSPLIT, $0-12 RET TEXT ·Xadd64(SB), NOSPLIT, $0-20 + NO_LOCAL_POINTERS // no XADDQ so use CMPXCHG8B loop MOVL ptr+0(FP), BP TESTL $7, BP JZ 2(PC) - MOVL 0, AX // crash when unaligned + CALL ·panicUnaligned(SB) // DI:SI = delta MOVL delta_lo+4(FP), SI MOVL delta_hi+8(FP), DI @@ -144,11 +146,12 @@ TEXT ·Xchguintptr(SB), NOSPLIT, $0-12 JMP ·Xchg(SB) TEXT ·Xchg64(SB),NOSPLIT,$0-20 + NO_LOCAL_POINTERS // no XCHGQ so use CMPXCHG8B loop MOVL ptr+0(FP), BP TESTL $7, BP JZ 2(PC) - MOVL 0, AX // crash when unaligned + CALL ·panicUnaligned(SB) // CX:BX = new MOVL new_lo+4(FP), BX MOVL new_hi+8(FP), CX @@ -188,10 +191,11 @@ TEXT ·StoreRel(SB), NOSPLIT, $0-8 // uint64 atomicload64(uint64 volatile* addr); TEXT ·Load64(SB), NOSPLIT, $0-12 + NO_LOCAL_POINTERS MOVL ptr+0(FP), AX TESTL $7, AX JZ 2(PC) - MOVL 0, AX // crash with nil ptr deref + CALL ·panicUnaligned(SB) MOVQ (AX), M0 MOVQ M0, ret+4(FP) EMMS @@ -199,10 +203,11 @@ TEXT ·Load64(SB), NOSPLIT, $0-12 // void ·Store64(uint64 volatile* addr, uint64 v); TEXT ·Store64(SB), NOSPLIT, $0-12 + NO_LOCAL_POINTERS MOVL ptr+0(FP), AX TESTL $7, AX JZ 2(PC) - MOVL 0, AX // crash with nil ptr deref + CALL ·panicUnaligned(SB) // MOVQ and EMMS were introduced on the Pentium MMX. MOVQ val+4(FP), M0 MOVQ M0, (AX) diff --git a/src/runtime/internal/atomic/asm_arm.s b/src/runtime/internal/atomic/asm_arm.s index db1267423d..c3d1d9025d 100644 --- a/src/runtime/internal/atomic/asm_arm.s +++ b/src/runtime/internal/atomic/asm_arm.s @@ -3,6 +3,7 @@ // license that can be found in the LICENSE file. #include "textflag.h" +#include "funcdata.h" // bool armcas(int32 *val, int32 old, int32 new) // Atomically: @@ -96,11 +97,7 @@ TEXT ·Xaddint64(SB),NOSPLIT,$0-20 // atomics with locks. TEXT armCas64<>(SB),NOSPLIT,$0-21 - MOVW addr+0(FP), R1 - // make unaligned atomic access panic - AND.S $7, R1, R2 - BEQ 2(PC) - MOVW R2, (R2) // crash. AND.S above left only low 3 bits in R2. + // addr is already in R1 MOVW old_lo+4(FP), R2 MOVW old_hi+8(FP), R3 MOVW new_lo+12(FP), R4 @@ -129,11 +126,7 @@ cas64fail: RET TEXT armXadd64<>(SB),NOSPLIT,$0-20 - MOVW addr+0(FP), R1 - // make unaligned atomic access panic - AND.S $7, R1, R2 - BEQ 2(PC) - MOVW R2, (R2) // crash. AND.S above left only low 3 bits in R2. + // addr is already in R1 MOVW delta_lo+4(FP), R2 MOVW delta_hi+8(FP), R3 @@ -155,11 +148,7 @@ add64loop: RET TEXT armXchg64<>(SB),NOSPLIT,$0-20 - MOVW addr+0(FP), R1 - // make unaligned atomic access panic - AND.S $7, R1, R2 - BEQ 2(PC) - MOVW R2, (R2) // crash. AND.S above left only low 3 bits in R2. + // addr is already in R1 MOVW new_lo+4(FP), R2 MOVW new_hi+8(FP), R3 @@ -179,11 +168,7 @@ swap64loop: RET TEXT armLoad64<>(SB),NOSPLIT,$0-12 - MOVW addr+0(FP), R1 - // make unaligned atomic access panic - AND.S $7, R1, R2 - BEQ 2(PC) - MOVW R2, (R2) // crash. AND.S above left only low 3 bits in R2. + // addr is already in R1 LDREXD (R1), R2 // loads R2 and R3 DMB MB_ISH @@ -193,11 +178,7 @@ TEXT armLoad64<>(SB),NOSPLIT,$0-12 RET TEXT armStore64<>(SB),NOSPLIT,$0-12 - MOVW addr+0(FP), R1 - // make unaligned atomic access panic - AND.S $7, R1, R2 - BEQ 2(PC) - MOVW R2, (R2) // crash. AND.S above left only low 3 bits in R2. + // addr is already in R1 MOVW val_lo+4(FP), R2 MOVW val_hi+8(FP), R3 @@ -213,35 +194,83 @@ store64loop: DMB MB_ISH RET -TEXT ·Cas64(SB),NOSPLIT,$0-21 +// The following functions all panic if their address argument isn't +// 8-byte aligned. Since we're calling back into Go code to do this, +// we have to cooperate with stack unwinding. In the normal case, the +// functions tail-call into the appropriate implementation, which +// means they must not open a frame. Hence, when they go down the +// panic path, at that point they push the LR to create a real frame +// (they don't need to pop it because panic won't return). + +TEXT ·Cas64(SB),NOSPLIT,$-4-21 + NO_LOCAL_POINTERS + MOVW addr+0(FP), R1 + // make unaligned atomic access panic + AND.S $7, R1, R2 + BEQ 3(PC) + MOVW.W R14, -4(R13) // prepare a real frame + BL ·panicUnaligned(SB) + MOVB runtime·goarm(SB), R11 CMP $7, R11 BLT 2(PC) JMP armCas64<>(SB) JMP ·goCas64(SB) -TEXT ·Xadd64(SB),NOSPLIT,$0-20 +TEXT ·Xadd64(SB),NOSPLIT,$-4-20 + NO_LOCAL_POINTERS + MOVW addr+0(FP), R1 + // make unaligned atomic access panic + AND.S $7, R1, R2 + BEQ 3(PC) + MOVW.W R14, -4(R13) // prepare a real frame + BL ·panicUnaligned(SB) + MOVB runtime·goarm(SB), R11 CMP $7, R11 BLT 2(PC) JMP armXadd64<>(SB) JMP ·goXadd64(SB) -TEXT ·Xchg64(SB),NOSPLIT,$0-20 +TEXT ·Xchg64(SB),NOSPLIT,$-4-20 + NO_LOCAL_POINTERS + MOVW addr+0(FP), R1 + // make unaligned atomic access panic + AND.S $7, R1, R2 + BEQ 3(PC) + MOVW.W R14, -4(R13) // prepare a real frame + BL ·panicUnaligned(SB) + MOVB runtime·goarm(SB), R11 CMP $7, R11 BLT 2(PC) JMP armXchg64<>(SB) JMP ·goXchg64(SB) -TEXT ·Load64(SB),NOSPLIT,$0-12 +TEXT ·Load64(SB),NOSPLIT,$-4-12 + NO_LOCAL_POINTERS + MOVW addr+0(FP), R1 + // make unaligned atomic access panic + AND.S $7, R1, R2 + BEQ 3(PC) + MOVW.W R14, -4(R13) // prepare a real frame + BL ·panicUnaligned(SB) + MOVB runtime·goarm(SB), R11 CMP $7, R11 BLT 2(PC) JMP armLoad64<>(SB) JMP ·goLoad64(SB) -TEXT ·Store64(SB),NOSPLIT,$0-12 +TEXT ·Store64(SB),NOSPLIT,$-4-12 + NO_LOCAL_POINTERS + MOVW addr+0(FP), R1 + // make unaligned atomic access panic + AND.S $7, R1, R2 + BEQ 3(PC) + MOVW.W R14, -4(R13) // prepare a real frame + BL ·panicUnaligned(SB) + MOVB runtime·goarm(SB), R11 CMP $7, R11 BLT 2(PC) diff --git a/src/runtime/internal/atomic/atomic_mipsx.go b/src/runtime/internal/atomic/atomic_mipsx.go index 0e2d77ade1..b99bfe7dbf 100644 --- a/src/runtime/internal/atomic/atomic_mipsx.go +++ b/src/runtime/internal/atomic/atomic_mipsx.go @@ -34,7 +34,7 @@ func spinUnlock(state *uint32) func lockAndCheck(addr *uint64) { // ensure 8-byte alignment if uintptr(unsafe.Pointer(addr))&7 != 0 { - addr = nil + panicUnaligned() } // force dereference before taking lock _ = *addr diff --git a/src/runtime/internal/atomic/atomic_test.go b/src/runtime/internal/atomic/atomic_test.go index b0a8fa0610..a9f95077c0 100644 --- a/src/runtime/internal/atomic/atomic_test.go +++ b/src/runtime/internal/atomic/atomic_test.go @@ -73,8 +73,15 @@ func TestXadduintptrOnUint64(t *testing.T) { func shouldPanic(t *testing.T, name string, f func()) { defer func() { - if recover() == nil { + // Check that all GC maps are sane. + runtime.GC() + + err := recover() + want := "unaligned 64-bit atomic operation" + if err == nil { t.Errorf("%s did not panic", name) + } else if s, _ := err.(string); s != want { + t.Errorf("%s: wanted panic %q, got %q", name, want, err) } }() f() diff --git a/src/runtime/internal/atomic/unaligned.go b/src/runtime/internal/atomic/unaligned.go new file mode 100644 index 0000000000..a859de4144 --- /dev/null +++ b/src/runtime/internal/atomic/unaligned.go @@ -0,0 +1,9 @@ +// Copyright 2020 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +package atomic + +func panicUnaligned() { + panic("unaligned 64-bit atomic operation") +} diff --git a/src/sync/atomic/atomic_test.go b/src/sync/atomic/atomic_test.go index 83e7c8d763..eadc962f70 100644 --- a/src/sync/atomic/atomic_test.go +++ b/src/sync/atomic/atomic_test.go @@ -1397,8 +1397,15 @@ func TestStoreLoadRelAcq64(t *testing.T) { func shouldPanic(t *testing.T, name string, f func()) { defer func() { - if recover() == nil { + // Check that all GC maps are sane. + runtime.GC() + + err := recover() + want := "unaligned 64-bit atomic operation" + if err == nil { t.Errorf("%s did not panic", name) + } else if s, _ := err.(string); s != want { + t.Errorf("%s: wanted panic %q, got %q", name, want, err) } }() f() -- cgit v1.3 From 15ead857dbc638b9d83a7686acf0dc746fc45918 Mon Sep 17 00:00:00 2001 From: "Paul E. Murphy" Date: Wed, 9 Sep 2020 17:24:23 -0500 Subject: cmd/compiler,cmd/go,sync: add internal {LoadAcq,StoreRel}64 on ppc64 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Add an internal atomic intrinsic for load with acquire semantics (extending LoadAcq to 64b) and add LoadAcquintptr for internal use within the sync package. For other arches, this remaps to the appropriate atomic.Load{,64} intrinsic which should not alter code generation. Similarly, add StoreRel{uintptr,64} for consistency, and inline. Finally, add an exception to allow sync to directly use the runtime/internal/atomic package which avoids more convoluted workarounds (contributed by Lynn Boger). In an extreme example, sync.(*Pool).pin consumes 20% of wall time during fmt tests. This is reduced to 5% on ppc64le/power9. From the fmt benchmarks on ppc64le: name old time/op new time/op delta SprintfPadding 468ns ± 0% 451ns ± 0% -3.63% SprintfEmpty 73.3ns ± 0% 51.9ns ± 0% -29.20% SprintfString 135ns ± 0% 122ns ± 0% -9.63% SprintfTruncateString 232ns ± 0% 214ns ± 0% -7.76% SprintfTruncateBytes 216ns ± 0% 202ns ± 0% -6.48% SprintfSlowParsingPath 162ns ± 0% 142ns ± 0% -12.35% SprintfQuoteString 1.00µs ± 0% 0.99µs ± 0% -1.39% SprintfInt 117ns ± 0% 104ns ± 0% -11.11% SprintfIntInt 190ns ± 0% 175ns ± 0% -7.89% SprintfPrefixedInt 232ns ± 0% 212ns ± 0% -8.62% SprintfFloat 270ns ± 0% 255ns ± 0% -5.56% SprintfComplex 1.01µs ± 0% 0.99µs ± 0% -1.68% SprintfBoolean 127ns ± 0% 111ns ± 0% -12.60% SprintfHexString 220ns ± 0% 198ns ± 0% -10.00% SprintfHexBytes 261ns ± 0% 252ns ± 0% -3.45% SprintfBytes 600ns ± 0% 590ns ± 0% -1.67% SprintfStringer 684ns ± 0% 658ns ± 0% -3.80% SprintfStructure 2.57µs ± 0% 2.57µs ± 0% -0.12% ManyArgs 669ns ± 0% 646ns ± 0% -3.44% FprintInt 140ns ± 0% 136ns ± 0% -2.86% FprintfBytes 184ns ± 0% 181ns ± 0% -1.63% FprintIntNoAlloc 140ns ± 0% 136ns ± 0% -2.86% ScanInts 929µs ± 0% 921µs ± 0% -0.79% ScanRecursiveInt 122ms ± 0% 121ms ± 0% -0.11% ScanRecursiveIntReaderWrapper 122ms ± 0% 122ms ± 0% -0.18% Change-Id: I4d66780261b57b06ef600229e475462e7313f0d6 Reviewed-on: https://go-review.googlesource.com/c/go/+/253748 Run-TryBot: Lynn Boger Reviewed-by: Lynn Boger Reviewed-by: Keith Randall Trust: Lynn Boger TryBot-Result: Go Bot --- src/cmd/compile/internal/gc/ssa.go | 19 ++++++++++++++ src/cmd/compile/internal/ssa/branchelim.go | 2 +- src/cmd/compile/internal/ssa/gen/PPC64.rules | 4 +-- src/cmd/compile/internal/ssa/gen/genericOps.go | 2 ++ src/cmd/compile/internal/ssa/opGen.go | 13 ++++++++++ src/cmd/compile/internal/ssa/rewritePPC64.go | 34 ++++++++++++++++++++++++++ src/cmd/go/internal/load/pkg.go | 5 ++++ src/runtime/internal/atomic/asm_386.s | 3 +++ src/runtime/internal/atomic/asm_amd64.s | 6 +++++ src/runtime/internal/atomic/asm_arm.s | 6 +++++ src/runtime/internal/atomic/asm_mips64x.s | 6 +++++ src/runtime/internal/atomic/asm_mipsx.s | 3 +++ src/runtime/internal/atomic/asm_ppc64x.s | 13 ++++++++++ src/runtime/internal/atomic/atomic_386.go | 9 +++++++ src/runtime/internal/atomic/atomic_amd64.go | 18 ++++++++++++++ src/runtime/internal/atomic/atomic_arm.go | 6 +++++ src/runtime/internal/atomic/atomic_arm64.go | 12 +++++++++ src/runtime/internal/atomic/atomic_arm64.s | 14 +++++++++++ src/runtime/internal/atomic/atomic_mips64x.go | 12 +++++++++ src/runtime/internal/atomic/atomic_mips64x.s | 8 ++++++ src/runtime/internal/atomic/atomic_mipsx.go | 6 +++++ src/runtime/internal/atomic/atomic_ppc64x.go | 12 +++++++++ src/runtime/internal/atomic/atomic_ppc64x.s | 20 +++++++++++++++ src/runtime/internal/atomic/atomic_riscv64.go | 12 +++++++++ src/runtime/internal/atomic/atomic_riscv64.s | 12 +++++++++ src/runtime/internal/atomic/atomic_s390x.go | 24 ++++++++++++++++++ src/runtime/internal/atomic/atomic_wasm.go | 24 ++++++++++++++++++ src/sync/pool.go | 15 ++++++------ 28 files changed, 310 insertions(+), 10 deletions(-) (limited to 'src/runtime/internal') diff --git a/src/cmd/compile/internal/gc/ssa.go b/src/cmd/compile/internal/gc/ssa.go index d8f627c213..e1455d2c3f 100644 --- a/src/cmd/compile/internal/gc/ssa.go +++ b/src/cmd/compile/internal/gc/ssa.go @@ -3389,6 +3389,13 @@ func init() { return s.newValue1(ssa.OpSelect0, types.Types[TUINT32], v) }, sys.PPC64, sys.S390X) + addF("runtime/internal/atomic", "LoadAcq64", + func(s *state, n *Node, args []*ssa.Value) *ssa.Value { + v := s.newValue2(ssa.OpAtomicLoadAcq64, types.NewTuple(types.Types[TUINT64], types.TypeMem), args[0], s.mem()) + s.vars[&memVar] = s.newValue1(ssa.OpSelect1, types.TypeMem, v) + return s.newValue1(ssa.OpSelect0, types.Types[TUINT64], v) + }, + sys.PPC64) addF("runtime/internal/atomic", "Loadp", func(s *state, n *Node, args []*ssa.Value) *ssa.Value { v := s.newValue2(ssa.OpAtomicLoadPtr, types.NewTuple(s.f.Config.Types.BytePtr, types.TypeMem), args[0], s.mem()) @@ -3427,6 +3434,12 @@ func init() { return nil }, sys.PPC64, sys.S390X) + addF("runtime/internal/atomic", "StoreRel64", + func(s *state, n *Node, args []*ssa.Value) *ssa.Value { + s.vars[&memVar] = s.newValue3(ssa.OpAtomicStoreRel64, types.TypeMem, args[0], args[1], s.mem()) + return nil + }, + sys.PPC64) addF("runtime/internal/atomic", "Xchg", func(s *state, n *Node, args []*ssa.Value) *ssa.Value { @@ -3542,9 +3555,15 @@ func init() { alias("runtime/internal/atomic", "Loaduintptr", "runtime/internal/atomic", "Load", p4...) alias("runtime/internal/atomic", "Loaduintptr", "runtime/internal/atomic", "Load64", p8...) alias("runtime/internal/atomic", "LoadAcq", "runtime/internal/atomic", "Load", lwatomics...) + alias("runtime/internal/atomic", "LoadAcq64", "runtime/internal/atomic", "Load64", lwatomics...) + alias("runtime/internal/atomic", "LoadAcquintptr", "runtime/internal/atomic", "LoadAcq", p4...) + alias("runtime/internal/atomic", "LoadAcquintptr", "runtime/internal/atomic", "LoadAcq64", p8...) alias("runtime/internal/atomic", "Storeuintptr", "runtime/internal/atomic", "Store", p4...) alias("runtime/internal/atomic", "Storeuintptr", "runtime/internal/atomic", "Store64", p8...) alias("runtime/internal/atomic", "StoreRel", "runtime/internal/atomic", "Store", lwatomics...) + alias("runtime/internal/atomic", "StoreRel64", "runtime/internal/atomic", "Store64", lwatomics...) + alias("runtime/internal/atomic", "StoreReluintptr", "runtime/internal/atomic", "StoreRel", p4...) + alias("runtime/internal/atomic", "StoreReluintptr", "runtime/internal/atomic", "StoreRel64", p8...) alias("runtime/internal/atomic", "Xchguintptr", "runtime/internal/atomic", "Xchg", p4...) alias("runtime/internal/atomic", "Xchguintptr", "runtime/internal/atomic", "Xchg64", p8...) alias("runtime/internal/atomic", "Xadduintptr", "runtime/internal/atomic", "Xadd", p4...) diff --git a/src/cmd/compile/internal/ssa/branchelim.go b/src/cmd/compile/internal/ssa/branchelim.go index 4f9fd8e22e..1d34f8160b 100644 --- a/src/cmd/compile/internal/ssa/branchelim.go +++ b/src/cmd/compile/internal/ssa/branchelim.go @@ -35,7 +35,7 @@ func branchelim(f *Func) { for _, b := range f.Blocks { for _, v := range b.Values { switch v.Op { - case OpLoad, OpAtomicLoad8, OpAtomicLoad32, OpAtomicLoad64, OpAtomicLoadPtr, OpAtomicLoadAcq32: + case OpLoad, OpAtomicLoad8, OpAtomicLoad32, OpAtomicLoad64, OpAtomicLoadPtr, OpAtomicLoadAcq32, OpAtomicLoadAcq64: loadAddr.add(v.Args[0].ID) case OpMove: loadAddr.add(v.Args[1].ID) diff --git a/src/cmd/compile/internal/ssa/gen/PPC64.rules b/src/cmd/compile/internal/ssa/gen/PPC64.rules index a05cfee654..11b1a318fe 100644 --- a/src/cmd/compile/internal/ssa/gen/PPC64.rules +++ b/src/cmd/compile/internal/ssa/gen/PPC64.rules @@ -967,10 +967,10 @@ // atomic intrinsics (AtomicLoad(8|32|64|Ptr) ptr mem) => (LoweredAtomicLoad(8|32|64|Ptr) [1] ptr mem) -(AtomicLoadAcq32 ptr mem) => (LoweredAtomicLoad32 [0] ptr mem) +(AtomicLoadAcq(32|64) ptr mem) => (LoweredAtomicLoad(32|64) [0] ptr mem) (AtomicStore(8|32|64) ptr val mem) => (LoweredAtomicStore(8|32|64) [1] ptr val mem) -(AtomicStoreRel32 ptr val mem) => (LoweredAtomicStore32 [0] ptr val mem) +(AtomicStoreRel(32|64) ptr val mem) => (LoweredAtomicStore(32|64) [0] ptr val mem) //(AtomicStorePtrNoWB ptr val mem) => (STLR ptr val mem) (AtomicExchange(32|64) ...) => (LoweredAtomicExchange(32|64) ...) diff --git a/src/cmd/compile/internal/ssa/gen/genericOps.go b/src/cmd/compile/internal/ssa/gen/genericOps.go index 85839303c5..12ba9f1fc9 100644 --- a/src/cmd/compile/internal/ssa/gen/genericOps.go +++ b/src/cmd/compile/internal/ssa/gen/genericOps.go @@ -550,11 +550,13 @@ var genericOps = []opData{ {name: "AtomicLoad64", argLength: 2, typ: "(UInt64,Mem)"}, // Load from arg0. arg1=memory. Returns loaded value and new memory. {name: "AtomicLoadPtr", argLength: 2, typ: "(BytePtr,Mem)"}, // Load from arg0. arg1=memory. Returns loaded value and new memory. {name: "AtomicLoadAcq32", argLength: 2, typ: "(UInt32,Mem)"}, // Load from arg0. arg1=memory. Lock acquisition, returns loaded value and new memory. + {name: "AtomicLoadAcq64", argLength: 2, typ: "(UInt64,Mem)"}, // Load from arg0. arg1=memory. Lock acquisition, returns loaded value and new memory. {name: "AtomicStore8", argLength: 3, typ: "Mem", hasSideEffects: true}, // Store arg1 to *arg0. arg2=memory. Returns memory. {name: "AtomicStore32", argLength: 3, typ: "Mem", hasSideEffects: true}, // Store arg1 to *arg0. arg2=memory. Returns memory. {name: "AtomicStore64", argLength: 3, typ: "Mem", hasSideEffects: true}, // Store arg1 to *arg0. arg2=memory. Returns memory. {name: "AtomicStorePtrNoWB", argLength: 3, typ: "Mem", hasSideEffects: true}, // Store arg1 to *arg0. arg2=memory. Returns memory. {name: "AtomicStoreRel32", argLength: 3, typ: "Mem", hasSideEffects: true}, // Store arg1 to *arg0. arg2=memory. Lock release, returns memory. + {name: "AtomicStoreRel64", argLength: 3, typ: "Mem", hasSideEffects: true}, // Store arg1 to *arg0. arg2=memory. Lock release, returns memory. {name: "AtomicExchange32", argLength: 3, typ: "(UInt32,Mem)", hasSideEffects: true}, // Store arg1 to *arg0. arg2=memory. Returns old contents of *arg0 and new memory. {name: "AtomicExchange64", argLength: 3, typ: "(UInt64,Mem)", hasSideEffects: true}, // Store arg1 to *arg0. arg2=memory. Returns old contents of *arg0 and new memory. {name: "AtomicAdd32", argLength: 3, typ: "(UInt32,Mem)", hasSideEffects: true}, // Do *arg0 += arg1. arg2=memory. Returns sum and new memory. diff --git a/src/cmd/compile/internal/ssa/opGen.go b/src/cmd/compile/internal/ssa/opGen.go index 051550fb17..eae30c79ba 100644 --- a/src/cmd/compile/internal/ssa/opGen.go +++ b/src/cmd/compile/internal/ssa/opGen.go @@ -2839,11 +2839,13 @@ const ( OpAtomicLoad64 OpAtomicLoadPtr OpAtomicLoadAcq32 + OpAtomicLoadAcq64 OpAtomicStore8 OpAtomicStore32 OpAtomicStore64 OpAtomicStorePtrNoWB OpAtomicStoreRel32 + OpAtomicStoreRel64 OpAtomicExchange32 OpAtomicExchange64 OpAtomicAdd32 @@ -35429,6 +35431,11 @@ var opcodeTable = [...]opInfo{ argLen: 2, generic: true, }, + { + name: "AtomicLoadAcq64", + argLen: 2, + generic: true, + }, { name: "AtomicStore8", argLen: 3, @@ -35459,6 +35466,12 @@ var opcodeTable = [...]opInfo{ hasSideEffects: true, generic: true, }, + { + name: "AtomicStoreRel64", + argLen: 3, + hasSideEffects: true, + generic: true, + }, { name: "AtomicExchange32", argLen: 3, diff --git a/src/cmd/compile/internal/ssa/rewritePPC64.go b/src/cmd/compile/internal/ssa/rewritePPC64.go index 1b8a5a78ca..a820bc0c4e 100644 --- a/src/cmd/compile/internal/ssa/rewritePPC64.go +++ b/src/cmd/compile/internal/ssa/rewritePPC64.go @@ -82,6 +82,8 @@ func rewriteValuePPC64(v *Value) bool { return rewriteValuePPC64_OpAtomicLoad8(v) case OpAtomicLoadAcq32: return rewriteValuePPC64_OpAtomicLoadAcq32(v) + case OpAtomicLoadAcq64: + return rewriteValuePPC64_OpAtomicLoadAcq64(v) case OpAtomicLoadPtr: return rewriteValuePPC64_OpAtomicLoadPtr(v) case OpAtomicOr8: @@ -95,6 +97,8 @@ func rewriteValuePPC64(v *Value) bool { return rewriteValuePPC64_OpAtomicStore8(v) case OpAtomicStoreRel32: return rewriteValuePPC64_OpAtomicStoreRel32(v) + case OpAtomicStoreRel64: + return rewriteValuePPC64_OpAtomicStoreRel64(v) case OpAvg64u: return rewriteValuePPC64_OpAvg64u(v) case OpBitLen32: @@ -930,6 +934,20 @@ func rewriteValuePPC64_OpAtomicLoadAcq32(v *Value) bool { return true } } +func rewriteValuePPC64_OpAtomicLoadAcq64(v *Value) bool { + v_1 := v.Args[1] + v_0 := v.Args[0] + // match: (AtomicLoadAcq64 ptr mem) + // result: (LoweredAtomicLoad64 [0] ptr mem) + for { + ptr := v_0 + mem := v_1 + v.reset(OpPPC64LoweredAtomicLoad64) + v.AuxInt = int64ToAuxInt(0) + v.AddArg2(ptr, mem) + return true + } +} func rewriteValuePPC64_OpAtomicLoadPtr(v *Value) bool { v_1 := v.Args[1] v_0 := v.Args[0] @@ -1008,6 +1026,22 @@ func rewriteValuePPC64_OpAtomicStoreRel32(v *Value) bool { return true } } +func rewriteValuePPC64_OpAtomicStoreRel64(v *Value) bool { + v_2 := v.Args[2] + v_1 := v.Args[1] + v_0 := v.Args[0] + // match: (AtomicStoreRel64 ptr val mem) + // result: (LoweredAtomicStore64 [0] ptr val mem) + for { + ptr := v_0 + val := v_1 + mem := v_2 + v.reset(OpPPC64LoweredAtomicStore64) + v.AuxInt = int64ToAuxInt(0) + v.AddArg3(ptr, val, mem) + return true + } +} func rewriteValuePPC64_OpAvg64u(v *Value) bool { v_1 := v.Args[1] v_0 := v.Args[0] diff --git a/src/cmd/go/internal/load/pkg.go b/src/cmd/go/internal/load/pkg.go index 2bdc08ba36..c9665265e9 100644 --- a/src/cmd/go/internal/load/pkg.go +++ b/src/cmd/go/internal/load/pkg.go @@ -1337,6 +1337,11 @@ func disallowInternal(srcDir string, importer *Package, importerPath string, p * return p } + // Allow sync package to access lightweight atomic functions limited to the runtime. + if p.Standard && strings.HasPrefix(importerPath, "sync") && p.ImportPath == "runtime/internal/atomic" { + return p + } + // Internal is present. // Map import path back to directory corresponding to parent of internal. if i > 0 { diff --git a/src/runtime/internal/atomic/asm_386.s b/src/runtime/internal/atomic/asm_386.s index bcefff373f..7ebf675ac5 100644 --- a/src/runtime/internal/atomic/asm_386.s +++ b/src/runtime/internal/atomic/asm_386.s @@ -189,6 +189,9 @@ TEXT ·Store(SB), NOSPLIT, $0-8 TEXT ·StoreRel(SB), NOSPLIT, $0-8 JMP ·Store(SB) +TEXT runtime∕internal∕atomic·StoreReluintptr(SB), NOSPLIT, $0-8 + JMP runtime∕internal∕atomic·Store(SB) + // uint64 atomicload64(uint64 volatile* addr); TEXT ·Load64(SB), NOSPLIT, $0-12 NO_LOCAL_POINTERS diff --git a/src/runtime/internal/atomic/asm_amd64.s b/src/runtime/internal/atomic/asm_amd64.s index 90c56424c9..80fb31285d 100644 --- a/src/runtime/internal/atomic/asm_amd64.s +++ b/src/runtime/internal/atomic/asm_amd64.s @@ -136,6 +136,12 @@ TEXT runtime∕internal∕atomic·Store(SB), NOSPLIT, $0-12 TEXT runtime∕internal∕atomic·StoreRel(SB), NOSPLIT, $0-12 JMP runtime∕internal∕atomic·Store(SB) +TEXT runtime∕internal∕atomic·StoreRel64(SB), NOSPLIT, $0-16 + JMP runtime∕internal∕atomic·Store64(SB) + +TEXT runtime∕internal∕atomic·StoreReluintptr(SB), NOSPLIT, $0-16 + JMP runtime∕internal∕atomic·Store64(SB) + TEXT runtime∕internal∕atomic·Store8(SB), NOSPLIT, $0-9 MOVQ ptr+0(FP), BX MOVB val+8(FP), AX diff --git a/src/runtime/internal/atomic/asm_arm.s b/src/runtime/internal/atomic/asm_arm.s index c3d1d9025d..274925ed60 100644 --- a/src/runtime/internal/atomic/asm_arm.s +++ b/src/runtime/internal/atomic/asm_arm.s @@ -57,6 +57,9 @@ TEXT ·Loadp(SB),NOSPLIT|NOFRAME,$0-8 TEXT ·LoadAcq(SB),NOSPLIT|NOFRAME,$0-8 B ·Load(SB) +TEXT ·LoadAcquintptr(SB),NOSPLIT|NOFRAME,$0-8 + B ·Load(SB) + TEXT ·Casuintptr(SB),NOSPLIT,$0-13 B ·Cas(SB) @@ -81,6 +84,9 @@ TEXT ·StorepNoWB(SB),NOSPLIT,$0-8 TEXT ·StoreRel(SB),NOSPLIT,$0-8 B ·Store(SB) +TEXT ·StoreReluintptr(SB),NOSPLIT,$0-8 + B ·Store(SB) + TEXT ·Xadduintptr(SB),NOSPLIT,$0-12 B ·Xadd(SB) diff --git a/src/runtime/internal/atomic/asm_mips64x.s b/src/runtime/internal/atomic/asm_mips64x.s index 3290fb726a..03fb822929 100644 --- a/src/runtime/internal/atomic/asm_mips64x.s +++ b/src/runtime/internal/atomic/asm_mips64x.s @@ -158,6 +158,12 @@ TEXT ·StorepNoWB(SB), NOSPLIT, $0-16 TEXT ·StoreRel(SB), NOSPLIT, $0-12 JMP ·Store(SB) +TEXT ·StoreRel64(SB), NOSPLIT, $0-16 + JMP ·Store64(SB) + +TEXT ·StoreReluintptr(SB), NOSPLIT, $0-16 + JMP ·Store64(SB) + TEXT ·Store(SB), NOSPLIT, $0-12 MOVV ptr+0(FP), R1 MOVW val+8(FP), R2 diff --git a/src/runtime/internal/atomic/asm_mipsx.s b/src/runtime/internal/atomic/asm_mipsx.s index 62811a6599..63bb548825 100644 --- a/src/runtime/internal/atomic/asm_mipsx.s +++ b/src/runtime/internal/atomic/asm_mipsx.s @@ -122,6 +122,9 @@ TEXT ·StorepNoWB(SB),NOSPLIT,$0-8 TEXT ·StoreRel(SB),NOSPLIT,$0-8 JMP ·Store(SB) +TEXT ·StoreReluintptr(SB),NOSPLIT,$0-8 + JMP ·Store(SB) + // void Or8(byte volatile*, byte); TEXT ·Or8(SB),NOSPLIT,$0-5 MOVW ptr+0(FP), R1 diff --git a/src/runtime/internal/atomic/asm_ppc64x.s b/src/runtime/internal/atomic/asm_ppc64x.s index 06dc931bf4..c0237de4d0 100644 --- a/src/runtime/internal/atomic/asm_ppc64x.s +++ b/src/runtime/internal/atomic/asm_ppc64x.s @@ -83,12 +83,18 @@ TEXT runtime∕internal∕atomic·Casuintptr(SB), NOSPLIT, $0-25 TEXT runtime∕internal∕atomic·Loaduintptr(SB), NOSPLIT|NOFRAME, $0-16 BR runtime∕internal∕atomic·Load64(SB) +TEXT runtime∕internal∕atomic·LoadAcquintptr(SB), NOSPLIT|NOFRAME, $0-16 + BR runtime∕internal∕atomic·LoadAcq64(SB) + TEXT runtime∕internal∕atomic·Loaduint(SB), NOSPLIT|NOFRAME, $0-16 BR runtime∕internal∕atomic·Load64(SB) TEXT runtime∕internal∕atomic·Storeuintptr(SB), NOSPLIT, $0-16 BR runtime∕internal∕atomic·Store64(SB) +TEXT runtime∕internal∕atomic·StoreReluintptr(SB), NOSPLIT, $0-16 + BR runtime∕internal∕atomic·StoreRel64(SB) + TEXT runtime∕internal∕atomic·Xadduintptr(SB), NOSPLIT, $0-24 BR runtime∕internal∕atomic·Xadd64(SB) @@ -191,6 +197,13 @@ TEXT runtime∕internal∕atomic·StoreRel(SB), NOSPLIT, $0-12 MOVW R4, 0(R3) RET +TEXT runtime∕internal∕atomic·StoreRel64(SB), NOSPLIT, $0-16 + MOVD ptr+0(FP), R3 + MOVD val+8(FP), R4 + LWSYNC + MOVD R4, 0(R3) + RET + // void runtime∕internal∕atomic·Or8(byte volatile*, byte); TEXT runtime∕internal∕atomic·Or8(SB), NOSPLIT, $0-9 MOVD ptr+0(FP), R3 diff --git a/src/runtime/internal/atomic/atomic_386.go b/src/runtime/internal/atomic/atomic_386.go index 8d002ebfe3..06ce6a5356 100644 --- a/src/runtime/internal/atomic/atomic_386.go +++ b/src/runtime/internal/atomic/atomic_386.go @@ -30,6 +30,12 @@ func LoadAcq(ptr *uint32) uint32 { return *ptr } +//go:nosplit +//go:noinline +func LoadAcquintptr(ptr *uintptr) uintptr { + return *ptr +} + //go:noescape func Xadd64(ptr *uint64, delta int64) uint64 @@ -83,5 +89,8 @@ func Store64(ptr *uint64, val uint64) //go:noescape func StoreRel(ptr *uint32, val uint32) +//go:noescape +func StoreReluintptr(ptr *uintptr, val uintptr) + // NO go:noescape annotation; see atomic_pointer.go. func StorepNoWB(ptr unsafe.Pointer, val unsafe.Pointer) diff --git a/src/runtime/internal/atomic/atomic_amd64.go b/src/runtime/internal/atomic/atomic_amd64.go index 14b8101720..1b71a16d94 100644 --- a/src/runtime/internal/atomic/atomic_amd64.go +++ b/src/runtime/internal/atomic/atomic_amd64.go @@ -35,6 +35,18 @@ func LoadAcq(ptr *uint32) uint32 { return *ptr } +//go:nosplit +//go:noinline +func LoadAcq64(ptr *uint64) uint64 { + return *ptr +} + +//go:nosplit +//go:noinline +func LoadAcquintptr(ptr *uintptr) uintptr { + return *ptr +} + //go:noescape func Xadd(ptr *uint32, delta int32) uint32 @@ -85,6 +97,12 @@ func Store64(ptr *uint64, val uint64) //go:noescape func StoreRel(ptr *uint32, val uint32) +//go:noescape +func StoreRel64(ptr *uint64, val uint64) + +//go:noescape +func StoreReluintptr(ptr *uintptr, val uintptr) + // StorepNoWB performs *ptr = val atomically and without a write // barrier. // diff --git a/src/runtime/internal/atomic/atomic_arm.go b/src/runtime/internal/atomic/atomic_arm.go index 95713afcc1..67d529c1cb 100644 --- a/src/runtime/internal/atomic/atomic_arm.go +++ b/src/runtime/internal/atomic/atomic_arm.go @@ -81,6 +81,9 @@ func Store(addr *uint32, v uint32) //go:noescape func StoreRel(addr *uint32, v uint32) +//go:noescape +func StoreReluintptr(addr *uintptr, v uintptr) + //go:nosplit func goCas64(addr *uint64, old, new uint64) bool { if uintptr(unsafe.Pointer(addr))&7 != 0 { @@ -194,6 +197,9 @@ func Load8(addr *uint8) uint8 //go:noescape func LoadAcq(addr *uint32) uint32 +//go:noescape +func LoadAcquintptr(ptr *uintptr) uintptr + //go:noescape func Cas64(addr *uint64, old, new uint64) bool diff --git a/src/runtime/internal/atomic/atomic_arm64.go b/src/runtime/internal/atomic/atomic_arm64.go index 26ca94d54c..c9b4322fe9 100644 --- a/src/runtime/internal/atomic/atomic_arm64.go +++ b/src/runtime/internal/atomic/atomic_arm64.go @@ -41,6 +41,12 @@ func Loadp(ptr unsafe.Pointer) unsafe.Pointer //go:noescape func LoadAcq(addr *uint32) uint32 +//go:noescape +func LoadAcq64(ptr *uint64) uint64 + +//go:noescape +func LoadAcquintptr(ptr *uintptr) uintptr + //go:noescape func Or8(ptr *uint8, val uint8) @@ -67,3 +73,9 @@ func StorepNoWB(ptr unsafe.Pointer, val unsafe.Pointer) //go:noescape func StoreRel(ptr *uint32, val uint32) + +//go:noescape +func StoreRel64(ptr *uint64, val uint64) + +//go:noescape +func StoreReluintptr(ptr *uintptr, val uintptr) diff --git a/src/runtime/internal/atomic/atomic_arm64.s b/src/runtime/internal/atomic/atomic_arm64.s index a2eb7568d2..36c7698b18 100644 --- a/src/runtime/internal/atomic/atomic_arm64.s +++ b/src/runtime/internal/atomic/atomic_arm64.s @@ -36,12 +36,26 @@ TEXT ·Loadp(SB),NOSPLIT,$0-16 TEXT ·LoadAcq(SB),NOSPLIT,$0-12 B ·Load(SB) +// uint64 runtime∕internal∕atomic·LoadAcquintptr(uint64 volatile* addr) +TEXT ·LoadAcq64(SB),NOSPLIT,$0-16 + B ·Load64(SB) + +// uintptr runtime∕internal∕atomic·LoadAcq64(uintptr volatile* addr) +TEXT ·LoadAcquintptr(SB),NOSPLIT,$0-16 + B ·Load64(SB) + TEXT runtime∕internal∕atomic·StorepNoWB(SB), NOSPLIT, $0-16 B runtime∕internal∕atomic·Store64(SB) TEXT runtime∕internal∕atomic·StoreRel(SB), NOSPLIT, $0-12 B runtime∕internal∕atomic·Store(SB) +TEXT runtime∕internal∕atomic·StoreRel64(SB), NOSPLIT, $0-16 + B runtime∕internal∕atomic·Store64(SB) + +TEXT runtime∕internal∕atomic·StoreReluintptr(SB), NOSPLIT, $0-16 + B runtime∕internal∕atomic·Store64(SB) + TEXT runtime∕internal∕atomic·Store(SB), NOSPLIT, $0-12 MOVD ptr+0(FP), R0 MOVW val+8(FP), R1 diff --git a/src/runtime/internal/atomic/atomic_mips64x.go b/src/runtime/internal/atomic/atomic_mips64x.go index 1d9977850b..fca2242514 100644 --- a/src/runtime/internal/atomic/atomic_mips64x.go +++ b/src/runtime/internal/atomic/atomic_mips64x.go @@ -41,6 +41,12 @@ func Loadp(ptr unsafe.Pointer) unsafe.Pointer //go:noescape func LoadAcq(ptr *uint32) uint32 +//go:noescape +func LoadAcq64(ptr *uint64) uint64 + +//go:noescape +func LoadAcquintptr(ptr *uintptr) uintptr + //go:noescape func And8(ptr *uint8, val uint8) @@ -69,3 +75,9 @@ func StorepNoWB(ptr unsafe.Pointer, val unsafe.Pointer) //go:noescape func StoreRel(ptr *uint32, val uint32) + +//go:noescape +func StoreRel64(ptr *uint64, val uint64) + +//go:noescape +func StoreReluintptr(ptr *uintptr, val uintptr) diff --git a/src/runtime/internal/atomic/atomic_mips64x.s b/src/runtime/internal/atomic/atomic_mips64x.s index 1ed90937c9..125c0c221c 100644 --- a/src/runtime/internal/atomic/atomic_mips64x.s +++ b/src/runtime/internal/atomic/atomic_mips64x.s @@ -47,3 +47,11 @@ TEXT ·Loadp(SB),NOSPLIT|NOFRAME,$0-16 // uint32 runtime∕internal∕atomic·LoadAcq(uint32 volatile* ptr) TEXT ·LoadAcq(SB),NOSPLIT|NOFRAME,$0-12 JMP atomic·Load(SB) + +// uint64 runtime∕internal∕atomic·LoadAcq64(uint64 volatile* ptr) +TEXT ·LoadAcq64(SB),NOSPLIT|NOFRAME,$0-16 + JMP atomic·Load64(SB) + +// uintptr runtime∕internal∕atomic·LoadAcquintptr(uintptr volatile* ptr) +TEXT ·LoadAcquintptr(SB),NOSPLIT|NOFRAME,$0-16 + JMP atomic·Load64(SB) diff --git a/src/runtime/internal/atomic/atomic_mipsx.go b/src/runtime/internal/atomic/atomic_mipsx.go index b99bfe7dbf..be1e6a038b 100644 --- a/src/runtime/internal/atomic/atomic_mipsx.go +++ b/src/runtime/internal/atomic/atomic_mipsx.go @@ -132,6 +132,9 @@ func Loadp(ptr unsafe.Pointer) unsafe.Pointer //go:noescape func LoadAcq(ptr *uint32) uint32 +//go:noescape +func LoadAcquintptr(ptr *uintptr) uintptr + //go:noescape func And8(ptr *uint8, val uint8) @@ -150,5 +153,8 @@ func StorepNoWB(ptr unsafe.Pointer, val unsafe.Pointer) //go:noescape func StoreRel(ptr *uint32, val uint32) +//go:noescape +func StoreReluintptr(ptr *uintptr, val uintptr) + //go:noescape func CasRel(addr *uint32, old, new uint32) bool diff --git a/src/runtime/internal/atomic/atomic_ppc64x.go b/src/runtime/internal/atomic/atomic_ppc64x.go index a48ecf5ee8..e759bb27a2 100644 --- a/src/runtime/internal/atomic/atomic_ppc64x.go +++ b/src/runtime/internal/atomic/atomic_ppc64x.go @@ -41,6 +41,12 @@ func Loadp(ptr unsafe.Pointer) unsafe.Pointer //go:noescape func LoadAcq(ptr *uint32) uint32 +//go:noescape +func LoadAcq64(ptr *uint64) uint64 + +//go:noescape +func LoadAcquintptr(ptr *uintptr) uintptr + //go:noescape func And8(ptr *uint8, val uint8) @@ -67,5 +73,11 @@ func Store64(ptr *uint64, val uint64) //go:noescape func StoreRel(ptr *uint32, val uint32) +//go:noescape +func StoreRel64(ptr *uint64, val uint64) + +//go:noescape +func StoreReluintptr(ptr *uintptr, val uintptr) + // NO go:noescape annotation; see atomic_pointer.go. func StorepNoWB(ptr unsafe.Pointer, val unsafe.Pointer) diff --git a/src/runtime/internal/atomic/atomic_ppc64x.s b/src/runtime/internal/atomic/atomic_ppc64x.s index c2f696fb34..b79cdbca34 100644 --- a/src/runtime/internal/atomic/atomic_ppc64x.s +++ b/src/runtime/internal/atomic/atomic_ppc64x.s @@ -6,6 +6,15 @@ #include "textflag.h" + +// For more details about how various memory models are +// enforced on POWER, the following paper provides more +// details about how they enforce C/C++ like models. This +// gives context about why the strange looking code +// sequences below work. +// +// http://www.rdrop.com/users/paulmck/scalability/paper/N2745r.2011.03.04a.html + // uint32 runtime∕internal∕atomic·Load(uint32 volatile* ptr) TEXT ·Load(SB),NOSPLIT|NOFRAME,$-8-12 MOVD ptr+0(FP), R3 @@ -56,5 +65,16 @@ TEXT ·LoadAcq(SB),NOSPLIT|NOFRAME,$-8-12 MOVWZ 0(R3), R3 CMPW R3, R3, CR7 BC 4, 30, 1(PC) // bne- cr7, 0x4 + ISYNC MOVW R3, ret+8(FP) RET + +// uint64 runtime∕internal∕atomic·LoadAcq64(uint64 volatile* ptr) +TEXT ·LoadAcq64(SB),NOSPLIT|NOFRAME,$-8-16 + MOVD ptr+0(FP), R3 + MOVD 0(R3), R3 + CMP R3, R3, CR7 + BC 4, 30, 1(PC) // bne- cr7, 0x4 + ISYNC + MOVD R3, ret+8(FP) + RET diff --git a/src/runtime/internal/atomic/atomic_riscv64.go b/src/runtime/internal/atomic/atomic_riscv64.go index d52512369e..617bc1a3eb 100644 --- a/src/runtime/internal/atomic/atomic_riscv64.go +++ b/src/runtime/internal/atomic/atomic_riscv64.go @@ -39,6 +39,12 @@ func Loadp(ptr unsafe.Pointer) unsafe.Pointer //go:noescape func LoadAcq(ptr *uint32) uint32 +//go:noescape +func LoadAcq64(ptr *uint64) uint64 + +//go:noescape +func LoadAcquintptr(ptr *uintptr) uintptr + //go:noescape func Or8(ptr *uint8, val uint8) @@ -65,3 +71,9 @@ func StorepNoWB(ptr unsafe.Pointer, val unsafe.Pointer) //go:noescape func StoreRel(ptr *uint32, val uint32) + +//go:noescape +func StoreRel64(ptr *uint64, val uint64) + +//go:noescape +func StoreReluintptr(ptr *uintptr, val uintptr) diff --git a/src/runtime/internal/atomic/atomic_riscv64.s b/src/runtime/internal/atomic/atomic_riscv64.s index d005325ca3..db139d690a 100644 --- a/src/runtime/internal/atomic/atomic_riscv64.s +++ b/src/runtime/internal/atomic/atomic_riscv64.s @@ -150,6 +150,12 @@ TEXT ·Xaddint64(SB),NOSPLIT,$0-24 TEXT ·LoadAcq(SB),NOSPLIT|NOFRAME,$0-12 JMP ·Load(SB) +TEXT ·LoadAcq64(SB),NOSPLIT|NOFRAME,$0-16 + JMP ·Load64(SB) + +TEXT ·LoadAcquintptr(SB),NOSPLIT|NOFRAME,$0-16 + JMP ·Load64(SB) + // func Loadp(ptr unsafe.Pointer) unsafe.Pointer TEXT ·Loadp(SB),NOSPLIT,$0-16 JMP ·Load64(SB) @@ -161,6 +167,12 @@ TEXT ·StorepNoWB(SB), NOSPLIT, $0-16 TEXT ·StoreRel(SB), NOSPLIT, $0-12 JMP ·Store(SB) +TEXT ·StoreRel64(SB), NOSPLIT, $0-16 + JMP ·Store64(SB) + +TEXT ·StoreReluintptr(SB), NOSPLIT, $0-16 + JMP ·Store64(SB) + // func Xchg(ptr *uint32, new uint32) uint32 TEXT ·Xchg(SB), NOSPLIT, $0-20 MOV ptr+0(FP), A0 diff --git a/src/runtime/internal/atomic/atomic_s390x.go b/src/runtime/internal/atomic/atomic_s390x.go index 4d73b39baf..b649caa39f 100644 --- a/src/runtime/internal/atomic/atomic_s390x.go +++ b/src/runtime/internal/atomic/atomic_s390x.go @@ -41,6 +41,18 @@ func LoadAcq(ptr *uint32) uint32 { return *ptr } +//go:nosplit +//go:noinline +func LoadAcq64(ptr *uint64) uint64 { + return *ptr +} + +//go:nosplit +//go:noinline +func LoadAcquintptr(ptr *uintptr) uintptr { + return *ptr +} + //go:noescape func Store(ptr *uint32, val uint32) @@ -59,6 +71,18 @@ func StoreRel(ptr *uint32, val uint32) { *ptr = val } +//go:nosplit +//go:noinline +func StoreRel64(ptr *uint64, val uint64) { + *ptr = val +} + +//go:nosplit +//go:noinline +func StoreReluintptr(ptr *uintptr, val uintptr) { + *ptr = val +} + //go:noescape func And8(ptr *uint8, val uint8) diff --git a/src/runtime/internal/atomic/atomic_wasm.go b/src/runtime/internal/atomic/atomic_wasm.go index 2c0c3a8174..60a4942884 100644 --- a/src/runtime/internal/atomic/atomic_wasm.go +++ b/src/runtime/internal/atomic/atomic_wasm.go @@ -45,6 +45,18 @@ func LoadAcq(ptr *uint32) uint32 { return *ptr } +//go:nosplit +//go:noinline +func LoadAcq64(ptr *uint64) uint64 { + return *ptr +} + +//go:nosplit +//go:noinline +func LoadAcquintptr(ptr *uintptr) uintptr { + return *ptr +} + //go:nosplit //go:noinline func Load8(ptr *uint8) uint8 { @@ -141,6 +153,18 @@ func StoreRel(ptr *uint32, val uint32) { *ptr = val } +//go:nosplit +//go:noinline +func StoreRel64(ptr *uint64, val uint64) { + *ptr = val +} + +//go:nosplit +//go:noinline +func StoreReluintptr(ptr *uintptr, val uintptr) { + *ptr = val +} + //go:nosplit //go:noinline func Store8(ptr *uint8, val uint8) { diff --git a/src/sync/pool.go b/src/sync/pool.go index ca7afdb12f..137413fdc4 100644 --- a/src/sync/pool.go +++ b/src/sync/pool.go @@ -7,6 +7,7 @@ package sync import ( "internal/race" "runtime" + runtimeatomic "runtime/internal/atomic" "sync/atomic" "unsafe" ) @@ -152,8 +153,8 @@ func (p *Pool) Get() interface{} { func (p *Pool) getSlow(pid int) interface{} { // See the comment in pin regarding ordering of the loads. - size := atomic.LoadUintptr(&p.localSize) // load-acquire - locals := p.local // load-consume + size := runtimeatomic.LoadAcquintptr(&p.localSize) // load-acquire + locals := p.local // load-consume // Try to steal one element from other procs. for i := 0; i < int(size); i++ { l := indexLocal(locals, (pid+i+1)%int(size)) @@ -165,7 +166,7 @@ func (p *Pool) getSlow(pid int) interface{} { // Try the victim cache. We do this after attempting to steal // from all primary caches because we want objects in the // victim cache to age out if at all possible. - size = atomic.LoadUintptr(&p.victimSize) + size = runtimeatomic.Loaduintptr(&p.victimSize) if uintptr(pid) >= size { return nil } @@ -198,8 +199,8 @@ func (p *Pool) pin() (*poolLocal, int) { // Since we've disabled preemption, GC cannot happen in between. // Thus here we must observe local at least as large localSize. // We can observe a newer/larger local, it is fine (we must observe its zero-initialized-ness). - s := atomic.LoadUintptr(&p.localSize) // load-acquire - l := p.local // load-consume + s := runtimeatomic.LoadAcquintptr(&p.localSize) // load-acquire + l := p.local // load-consume if uintptr(pid) < s { return indexLocal(l, pid), pid } @@ -225,8 +226,8 @@ func (p *Pool) pinSlow() (*poolLocal, int) { // If GOMAXPROCS changes between GCs, we re-allocate the array and lose the old one. size := runtime.GOMAXPROCS(0) local := make([]poolLocal, size) - atomic.StorePointer(&p.local, unsafe.Pointer(&local[0])) // store-release - atomic.StoreUintptr(&p.localSize, uintptr(size)) // store-release + atomic.StorePointer(&p.local, unsafe.Pointer(&local[0])) // store-release + runtimeatomic.StoreReluintptr(&p.localSize, uintptr(size)) // store-release return &local[pid], pid } -- cgit v1.3 From ad61343f886cc5ce677e7bd62385144b2ba7b8f5 Mon Sep 17 00:00:00 2001 From: Michael Pratt Date: Thu, 8 Oct 2020 14:38:39 -0400 Subject: runtime/internal/atomic: add 32-bit And/Or These will be used in a following CL to perform larger bit clear and bit set than And8/Or8. Change-Id: I60f7b1099e29b69eb64add77564faee862880a8d Reviewed-on: https://go-review.googlesource.com/c/go/+/260977 Run-TryBot: Michael Pratt TryBot-Result: Go Bot Reviewed-by: Cherry Zhang Trust: Michael Pratt --- src/runtime/internal/atomic/asm_386.s | 16 ++++ src/runtime/internal/atomic/asm_amd64.s | 16 ++++ src/runtime/internal/atomic/asm_mips64x.s | 26 ++++++ src/runtime/internal/atomic/asm_mipsx.s | 26 ++++++ src/runtime/internal/atomic/asm_ppc64x.s | 30 ++++++- src/runtime/internal/atomic/asm_s390x.s | 22 ++++- src/runtime/internal/atomic/atomic_386.go | 6 ++ src/runtime/internal/atomic/atomic_amd64.go | 6 ++ src/runtime/internal/atomic/atomic_arm.go | 20 +++++ src/runtime/internal/atomic/atomic_arm64.go | 6 ++ src/runtime/internal/atomic/atomic_arm64.s | 19 ++++ src/runtime/internal/atomic/atomic_mips64x.go | 6 ++ src/runtime/internal/atomic/atomic_mipsx.go | 6 ++ src/runtime/internal/atomic/atomic_ppc64x.go | 6 ++ src/runtime/internal/atomic/atomic_riscv64.go | 6 ++ src/runtime/internal/atomic/atomic_riscv64.s | 14 +++ src/runtime/internal/atomic/atomic_s390x.go | 6 ++ src/runtime/internal/atomic/atomic_test.go | 119 +++++++++++++++++++++++++- src/runtime/internal/atomic/atomic_wasm.go | 12 +++ src/runtime/internal/atomic/bench_test.go | 40 +++++++++ 20 files changed, 400 insertions(+), 8 deletions(-) (limited to 'src/runtime/internal') diff --git a/src/runtime/internal/atomic/asm_386.s b/src/runtime/internal/atomic/asm_386.s index 7ebf675ac5..d82faef1f0 100644 --- a/src/runtime/internal/atomic/asm_386.s +++ b/src/runtime/internal/atomic/asm_386.s @@ -243,3 +243,19 @@ TEXT ·Store8(SB), NOSPLIT, $0-5 MOVB val+4(FP), AX XCHGB AX, 0(BX) RET + +// func Or(addr *uint32, v uint32) +TEXT ·Or(SB), NOSPLIT, $0-8 + MOVL ptr+0(FP), AX + MOVL val+4(FP), BX + LOCK + ORL BX, (AX) + RET + +// func And(addr *uint32, v uint32) +TEXT ·And(SB), NOSPLIT, $0-8 + MOVL ptr+0(FP), AX + MOVL val+4(FP), BX + LOCK + ANDL BX, (AX) + RET diff --git a/src/runtime/internal/atomic/asm_amd64.s b/src/runtime/internal/atomic/asm_amd64.s index 80fb31285d..2cf7c55870 100644 --- a/src/runtime/internal/atomic/asm_amd64.s +++ b/src/runtime/internal/atomic/asm_amd64.s @@ -169,3 +169,19 @@ TEXT runtime∕internal∕atomic·And8(SB), NOSPLIT, $0-9 LOCK ANDB BX, (AX) RET + +// func Or(addr *uint32, v uint32) +TEXT runtime∕internal∕atomic·Or(SB), NOSPLIT, $0-12 + MOVQ ptr+0(FP), AX + MOVL val+8(FP), BX + LOCK + ORL BX, (AX) + RET + +// func And(addr *uint32, v uint32) +TEXT runtime∕internal∕atomic·And(SB), NOSPLIT, $0-12 + MOVQ ptr+0(FP), AX + MOVL val+8(FP), BX + LOCK + ANDL BX, (AX) + RET diff --git a/src/runtime/internal/atomic/asm_mips64x.s b/src/runtime/internal/atomic/asm_mips64x.s index 03fb822929..a515683ebb 100644 --- a/src/runtime/internal/atomic/asm_mips64x.s +++ b/src/runtime/internal/atomic/asm_mips64x.s @@ -243,3 +243,29 @@ TEXT ·And8(SB), NOSPLIT, $0-9 BEQ R4, -4(PC) SYNC RET + +// func Or(addr *uint32, v uint32) +TEXT ·Or(SB), NOSPLIT, $0-12 + MOVV ptr+0(FP), R1 + MOVW val+8(FP), R2 + + SYNC + LL (R1), R3 + OR R2, R3 + SC R3, (R1) + BEQ R3, -4(PC) + SYNC + RET + +// func And(addr *uint32, v uint32) +TEXT ·And(SB), NOSPLIT, $0-12 + MOVV ptr+0(FP), R1 + MOVW val+8(FP), R2 + + SYNC + LL (R1), R3 + AND R2, R3 + SC R3, (R1) + BEQ R3, -4(PC) + SYNC + RET diff --git a/src/runtime/internal/atomic/asm_mipsx.s b/src/runtime/internal/atomic/asm_mipsx.s index 63bb548825..2b2cfabe08 100644 --- a/src/runtime/internal/atomic/asm_mipsx.s +++ b/src/runtime/internal/atomic/asm_mipsx.s @@ -172,3 +172,29 @@ try_and8: BEQ R4, try_and8 SYNC RET + +// func Or(addr *uint32, v uint32) +TEXT ·Or(SB), NOSPLIT, $0-8 + MOVW ptr+0(FP), R1 + MOVW val+4(FP), R2 + + SYNC + LL (R1), R3 + OR R2, R3 + SC R3, (R1) + BEQ R3, -4(PC) + SYNC + RET + +// func And(addr *uint32, v uint32) +TEXT ·And(SB), NOSPLIT, $0-8 + MOVW ptr+0(FP), R1 + MOVW val+4(FP), R2 + + SYNC + LL (R1), R3 + AND R2, R3 + SC R3, (R1) + BEQ R3, -4(PC) + SYNC + RET diff --git a/src/runtime/internal/atomic/asm_ppc64x.s b/src/runtime/internal/atomic/asm_ppc64x.s index c0237de4d0..bb009ab34d 100644 --- a/src/runtime/internal/atomic/asm_ppc64x.s +++ b/src/runtime/internal/atomic/asm_ppc64x.s @@ -222,8 +222,32 @@ TEXT runtime∕internal∕atomic·And8(SB), NOSPLIT, $0-9 MOVBZ val+8(FP), R4 LWSYNC again: - LBAR (R3),R6 - AND R4,R6 - STBCCC R6,(R3) + LBAR (R3), R6 + AND R4, R6 + STBCCC R6, (R3) + BNE again + RET + +// func Or(addr *uint32, v uint32) +TEXT runtime∕internal∕atomic·Or(SB), NOSPLIT, $0-12 + MOVD ptr+0(FP), R3 + MOVW val+8(FP), R4 + LWSYNC +again: + LWAR (R3), R6 + OR R4, R6 + STWCCC R6, (R3) + BNE again + RET + +// func And(addr *uint32, v uint32) +TEXT runtime∕internal∕atomic·And(SB), NOSPLIT, $0-12 + MOVD ptr+0(FP), R3 + MOVW val+8(FP), R4 + LWSYNC +again: + LWAR (R3),R6 + AND R4, R6 + STWCCC R6, (R3) BNE again RET diff --git a/src/runtime/internal/atomic/asm_s390x.s b/src/runtime/internal/atomic/asm_s390x.s index 9a19bc0ece..daf1f3cc9f 100644 --- a/src/runtime/internal/atomic/asm_s390x.s +++ b/src/runtime/internal/atomic/asm_s390x.s @@ -174,8 +174,8 @@ TEXT ·Xchguintptr(SB), NOSPLIT, $0-24 // func Or8(addr *uint8, v uint8) TEXT ·Or8(SB), NOSPLIT, $0-9 - MOVD ptr+0(FP), R3 - MOVBZ val+8(FP), R4 + MOVD ptr+0(FP), R3 + MOVBZ val+8(FP), R4 // We don't have atomic operations that work on individual bytes so we // need to align addr down to a word boundary and create a mask // containing v to OR with the entire word atomically. @@ -188,8 +188,8 @@ TEXT ·Or8(SB), NOSPLIT, $0-9 // func And8(addr *uint8, v uint8) TEXT ·And8(SB), NOSPLIT, $0-9 - MOVD ptr+0(FP), R3 - MOVBZ val+8(FP), R4 + MOVD ptr+0(FP), R3 + MOVBZ val+8(FP), R4 // We don't have atomic operations that work on individual bytes so we // need to align addr down to a word boundary and create a mask // containing v to AND with the entire word atomically. @@ -200,3 +200,17 @@ TEXT ·And8(SB), NOSPLIT, $0-9 RLL R5, R4, R4 // R4 = rotl(R4, R5) LAN R4, R6, 0(R3) // R6 = *R3; *R3 &= R4; (atomic) RET + +// func Or(addr *uint32, v uint32) +TEXT ·Or(SB), NOSPLIT, $0-12 + MOVD ptr+0(FP), R3 + MOVW val+8(FP), R4 + LAO R4, R6, 0(R3) // R6 = *R3; *R3 |= R4; (atomic) + RET + +// func And(addr *uint32, v uint32) +TEXT ·And(SB), NOSPLIT, $0-12 + MOVD ptr+0(FP), R3 + MOVW val+8(FP), R4 + LAN R4, R6, 0(R3) // R6 = *R3; *R3 &= R4; (atomic) + RET diff --git a/src/runtime/internal/atomic/atomic_386.go b/src/runtime/internal/atomic/atomic_386.go index 06ce6a5356..1bfcb1143d 100644 --- a/src/runtime/internal/atomic/atomic_386.go +++ b/src/runtime/internal/atomic/atomic_386.go @@ -69,6 +69,12 @@ func And8(ptr *uint8, val uint8) //go:noescape func Or8(ptr *uint8, val uint8) +//go:noescape +func And(ptr *uint32, val uint32) + +//go:noescape +func Or(ptr *uint32, val uint32) + // NOTE: Do not add atomicxor8 (XOR is not idempotent). //go:noescape diff --git a/src/runtime/internal/atomic/atomic_amd64.go b/src/runtime/internal/atomic/atomic_amd64.go index 1b71a16d94..e36eb83a11 100644 --- a/src/runtime/internal/atomic/atomic_amd64.go +++ b/src/runtime/internal/atomic/atomic_amd64.go @@ -77,6 +77,12 @@ func And8(ptr *uint8, val uint8) //go:noescape func Or8(ptr *uint8, val uint8) +//go:noescape +func And(ptr *uint32, val uint32) + +//go:noescape +func Or(ptr *uint32, val uint32) + // NOTE: Do not add atomicxor8 (XOR is not idempotent). //go:noescape diff --git a/src/runtime/internal/atomic/atomic_arm.go b/src/runtime/internal/atomic/atomic_arm.go index 67d529c1cb..546b3d6120 100644 --- a/src/runtime/internal/atomic/atomic_arm.go +++ b/src/runtime/internal/atomic/atomic_arm.go @@ -182,6 +182,26 @@ func And8(addr *uint8, v uint8) { } } +//go:nosplit +func Or(addr *uint32, v uint32) { + for { + old := *addr + if Cas(addr, old, old|v) { + return + } + } +} + +//go:nosplit +func And(addr *uint32, v uint32) { + for { + old := *addr + if Cas(addr, old, old&v) { + return + } + } +} + //go:nosplit func armcas(ptr *uint32, old, new uint32) bool diff --git a/src/runtime/internal/atomic/atomic_arm64.go b/src/runtime/internal/atomic/atomic_arm64.go index c9b4322fe9..d49bee8936 100644 --- a/src/runtime/internal/atomic/atomic_arm64.go +++ b/src/runtime/internal/atomic/atomic_arm64.go @@ -53,6 +53,12 @@ func Or8(ptr *uint8, val uint8) //go:noescape func And8(ptr *uint8, val uint8) +//go:noescape +func And(ptr *uint32, val uint32) + +//go:noescape +func Or(ptr *uint32, val uint32) + //go:noescape func Cas64(ptr *uint64, old, new uint64) bool diff --git a/src/runtime/internal/atomic/atomic_arm64.s b/src/runtime/internal/atomic/atomic_arm64.s index 36c7698b18..0cf3c40223 100644 --- a/src/runtime/internal/atomic/atomic_arm64.s +++ b/src/runtime/internal/atomic/atomic_arm64.s @@ -164,3 +164,22 @@ TEXT ·Or8(SB), NOSPLIT, $0-9 CBNZ R3, -3(PC) RET +// func And(addr *uint32, v uint32) +TEXT ·And(SB), NOSPLIT, $0-12 + MOVD ptr+0(FP), R0 + MOVW val+8(FP), R1 + LDAXRW (R0), R2 + AND R1, R2 + STLXRW R2, (R0), R3 + CBNZ R3, -3(PC) + RET + +// func Or(addr *uint32, v uint32) +TEXT ·Or(SB), NOSPLIT, $0-12 + MOVD ptr+0(FP), R0 + MOVW val+8(FP), R1 + LDAXRW (R0), R2 + ORR R1, R2 + STLXRW R2, (R0), R3 + CBNZ R3, -3(PC) + RET diff --git a/src/runtime/internal/atomic/atomic_mips64x.go b/src/runtime/internal/atomic/atomic_mips64x.go index fca2242514..b0109d72b0 100644 --- a/src/runtime/internal/atomic/atomic_mips64x.go +++ b/src/runtime/internal/atomic/atomic_mips64x.go @@ -55,6 +55,12 @@ func Or8(ptr *uint8, val uint8) // NOTE: Do not add atomicxor8 (XOR is not idempotent). +//go:noescape +func And(ptr *uint32, val uint32) + +//go:noescape +func Or(ptr *uint32, val uint32) + //go:noescape func Cas64(ptr *uint64, old, new uint64) bool diff --git a/src/runtime/internal/atomic/atomic_mipsx.go b/src/runtime/internal/atomic/atomic_mipsx.go index be1e6a038b..1336b50121 100644 --- a/src/runtime/internal/atomic/atomic_mipsx.go +++ b/src/runtime/internal/atomic/atomic_mipsx.go @@ -141,6 +141,12 @@ func And8(ptr *uint8, val uint8) //go:noescape func Or8(ptr *uint8, val uint8) +//go:noescape +func And(ptr *uint32, val uint32) + +//go:noescape +func Or(ptr *uint32, val uint32) + //go:noescape func Store(ptr *uint32, val uint32) diff --git a/src/runtime/internal/atomic/atomic_ppc64x.go b/src/runtime/internal/atomic/atomic_ppc64x.go index e759bb27a2..e4b109f0ec 100644 --- a/src/runtime/internal/atomic/atomic_ppc64x.go +++ b/src/runtime/internal/atomic/atomic_ppc64x.go @@ -55,6 +55,12 @@ func Or8(ptr *uint8, val uint8) // NOTE: Do not add atomicxor8 (XOR is not idempotent). +//go:noescape +func And(ptr *uint32, val uint32) + +//go:noescape +func Or(ptr *uint32, val uint32) + //go:noescape func Cas64(ptr *uint64, old, new uint64) bool diff --git a/src/runtime/internal/atomic/atomic_riscv64.go b/src/runtime/internal/atomic/atomic_riscv64.go index 617bc1a3eb..8f24d61625 100644 --- a/src/runtime/internal/atomic/atomic_riscv64.go +++ b/src/runtime/internal/atomic/atomic_riscv64.go @@ -51,6 +51,12 @@ func Or8(ptr *uint8, val uint8) //go:noescape func And8(ptr *uint8, val uint8) +//go:noescape +func And(ptr *uint32, val uint32) + +//go:noescape +func Or(ptr *uint32, val uint32) + //go:noescape func Cas64(ptr *uint64, old, new uint64) bool diff --git a/src/runtime/internal/atomic/atomic_riscv64.s b/src/runtime/internal/atomic/atomic_riscv64.s index db139d690a..74c896cea6 100644 --- a/src/runtime/internal/atomic/atomic_riscv64.s +++ b/src/runtime/internal/atomic/atomic_riscv64.s @@ -242,3 +242,17 @@ TEXT ·Or8(SB), NOSPLIT, $0-9 SLL A2, A1 AMOORW A1, (A0), ZERO RET + +// func And(ptr *uint32, val uint32) +TEXT ·And(SB), NOSPLIT, $0-12 + MOV ptr+0(FP), A0 + MOVW val+8(FP), A1 + AMOANDW A1, (A0), ZERO + RET + +// func Or(ptr *uint32, val uint32) +TEXT ·Or(SB), NOSPLIT, $0-12 + MOV ptr+0(FP), A0 + MOVW val+8(FP), A1 + AMOORW A1, (A0), ZERO + RET diff --git a/src/runtime/internal/atomic/atomic_s390x.go b/src/runtime/internal/atomic/atomic_s390x.go index b649caa39f..a058d60102 100644 --- a/src/runtime/internal/atomic/atomic_s390x.go +++ b/src/runtime/internal/atomic/atomic_s390x.go @@ -91,6 +91,12 @@ func Or8(ptr *uint8, val uint8) // NOTE: Do not add atomicxor8 (XOR is not idempotent). +//go:noescape +func And(ptr *uint32, val uint32) + +//go:noescape +func Or(ptr *uint32, val uint32) + //go:noescape func Xadd(ptr *uint32, delta int32) uint32 diff --git a/src/runtime/internal/atomic/atomic_test.go b/src/runtime/internal/atomic/atomic_test.go index a9f95077c0..c9c2eba248 100644 --- a/src/runtime/internal/atomic/atomic_test.go +++ b/src/runtime/internal/atomic/atomic_test.go @@ -150,6 +150,45 @@ func TestAnd8(t *testing.T) { } } +func TestAnd(t *testing.T) { + // Basic sanity check. + x := uint32(0xffffffff) + for i := uint32(0); i < 32; i++ { + atomic.And(&x, ^(1 << i)) + if r := uint32(0xffffffff) << (i + 1); x != r { + t.Fatalf("clearing bit %#x: want %#x, got %#x", uint32(1< Date: Wed, 4 Nov 2020 16:18:23 +0000 Subject: cmd/compile: improve atomic swap intrinsics on arm64 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit ARMv8.1 has added new instructions for atomic memory operations. This change builds on the previous change which added support for atomic add, 0a7ac93c27c9ade79fe0f66ae0bb81484c241ae5, to include similar support for atomic-compare-and-swap, atomic-swap, atomic-or, and atomic-and intrinsics. Since the new instructions are not guaranteed to be present, we guard their usages with a branch on a CPU feature. Peformance on an ARMv8.1 machine: name old time/op new time/op delta CompareAndSwap-16 37.9ns ±16% 24.1ns ± 4% -36.44% (p=0.000 n=10+9) CompareAndSwap64-16 38.6ns ±15% 24.1ns ± 3% -37.47% (p=0.000 n=10+10) name old time/op new time/op delta Swap-16 46.9ns ±32% 12.5ns ± 6% -73.40% (p=0.000 n=10+10) Swap64-16 53.4ns ± 1% 12.5ns ± 6% -76.56% (p=0.000 n=10+10) name old time/op new time/op delta Or8-16 8.81ns ± 0% 5.61ns ± 0% -36.32% (p=0.000 n=10+10) Or-16 7.21ns ± 0% 5.61ns ± 0% -22.19% (p=0.000 n=10+10) Or8Parallel-16 59.8ns ± 3% 12.5ns ± 2% -79.10% (p=0.000 n=10+10) OrParallel-16 51.7ns ± 3% 12.5ns ± 2% -75.84% (p=0.000 n=10+10) name old time/op new time/op delta And8-16 8.81ns ± 0% 5.61ns ± 0% -36.32% (p=0.000 n=10+10) And-16 7.21ns ± 0% 5.61ns ± 0% -22.19% (p=0.000 n=10+10) And8Parallel-16 59.1ns ± 6% 12.8ns ± 3% -78.33% (p=0.000 n=10+10) AndParallel-16 51.4ns ± 7% 12.8ns ± 3% -75.03% (p=0.000 n=10+10) Performance on an ARMv8.0 machine (no atomics instructions): name old time/op new time/op delta CompareAndSwap-16 61.3ns ± 0% 62.4ns ± 0% +1.70% (p=0.000 n=8+9) CompareAndSwap64-16 62.0ns ± 3% 61.3ns ± 2% ~ (p=0.093 n=10+10) name old time/op new time/op delta Swap-16 127ns ± 2% 131ns ± 2% +2.91% (p=0.001 n=10+10) Swap64-16 128ns ± 1% 131ns ± 2% +2.43% (p=0.001 n=10+10) name old time/op new time/op delta Or8-16 14.9ns ± 0% 15.3ns ± 0% +2.68% (p=0.000 n=10+10) Or-16 11.8ns ± 0% 12.3ns ± 0% +4.24% (p=0.000 n=10+10) Or8Parallel-16 137ns ± 1% 144ns ± 1% +4.97% (p=0.000 n=10+10) OrParallel-16 128ns ± 1% 136ns ± 1% +6.34% (p=0.000 n=10+10) name old time/op new time/op delta And8-16 14.9ns ± 0% 15.3ns ± 0% +2.68% (p=0.000 n=10+10) And-16 11.8ns ± 0% 12.3ns ± 0% +4.24% (p=0.000 n=10+10) And8Parallel-16 134ns ± 2% 141ns ± 1% +5.29% (p=0.000 n=10+10) AndParallel-16 125ns ± 2% 134ns ± 1% +7.10% (p=0.000 n=10+10) Fixes #39304 Change-Id: Idaca68701d4751650be6b4bedca3d57f51571712 Reviewed-on: https://go-review.googlesource.com/c/go/+/234217 Run-TryBot: Emmanuel Odeke TryBot-Result: Go Bot Reviewed-by: Cherry Zhang Trust: fannie zhang --- src/cmd/compile/internal/arm64/ssa.go | 125 ++++++++++++++++ src/cmd/compile/internal/gc/ssa.go | 109 ++++++++++---- src/cmd/compile/internal/ssa/gen/ARM64.rules | 13 +- src/cmd/compile/internal/ssa/gen/ARM64Ops.go | 35 +++++ src/cmd/compile/internal/ssa/gen/genericOps.go | 12 +- src/cmd/compile/internal/ssa/opGen.go | 200 +++++++++++++++++++++++++ src/cmd/compile/internal/ssa/rewriteARM64.go | 96 ++++++++++++ src/runtime/internal/atomic/bench_test.go | 51 +++++++ 8 files changed, 604 insertions(+), 37 deletions(-) (limited to 'src/runtime/internal') diff --git a/src/cmd/compile/internal/arm64/ssa.go b/src/cmd/compile/internal/arm64/ssa.go index 5c695ef84c..22b28a9308 100644 --- a/src/cmd/compile/internal/arm64/ssa.go +++ b/src/cmd/compile/internal/arm64/ssa.go @@ -581,6 +581,24 @@ func ssaGenValue(s *gc.SSAGenState, v *ssa.Value) { p2.From.Reg = arm64.REGTMP p2.To.Type = obj.TYPE_BRANCH gc.Patch(p2, p) + case ssa.OpARM64LoweredAtomicExchange64Variant, + ssa.OpARM64LoweredAtomicExchange32Variant: + swap := arm64.ASWPALD + if v.Op == ssa.OpARM64LoweredAtomicExchange32Variant { + swap = arm64.ASWPALW + } + r0 := v.Args[0].Reg() + r1 := v.Args[1].Reg() + out := v.Reg0() + + // SWPALD Rarg1, (Rarg0), Rout + p := s.Prog(swap) + p.From.Type = obj.TYPE_REG + p.From.Reg = r1 + p.To.Type = obj.TYPE_MEM + p.To.Reg = r0 + p.RegTo2 = out + case ssa.OpARM64LoweredAtomicAdd64, ssa.OpARM64LoweredAtomicAdd32: // LDAXR (Rarg0), Rout @@ -687,6 +705,56 @@ func ssaGenValue(s *gc.SSAGenState, v *ssa.Value) { p5.To.Type = obj.TYPE_REG p5.To.Reg = out gc.Patch(p2, p5) + case ssa.OpARM64LoweredAtomicCas64Variant, + ssa.OpARM64LoweredAtomicCas32Variant: + // Rarg0: ptr + // Rarg1: old + // Rarg2: new + // MOV Rarg1, Rtmp + // CASAL Rtmp, (Rarg0), Rarg2 + // CMP Rarg1, Rtmp + // CSET EQ, Rout + cas := arm64.ACASALD + cmp := arm64.ACMP + mov := arm64.AMOVD + if v.Op == ssa.OpARM64LoweredAtomicCas32Variant { + cas = arm64.ACASALW + cmp = arm64.ACMPW + mov = arm64.AMOVW + } + r0 := v.Args[0].Reg() + r1 := v.Args[1].Reg() + r2 := v.Args[2].Reg() + out := v.Reg0() + + // MOV Rarg1, Rtmp + p := s.Prog(mov) + p.From.Type = obj.TYPE_REG + p.From.Reg = r1 + p.To.Type = obj.TYPE_REG + p.To.Reg = arm64.REGTMP + + // CASAL Rtmp, (Rarg0), Rarg2 + p1 := s.Prog(cas) + p1.From.Type = obj.TYPE_REG + p1.From.Reg = arm64.REGTMP + p1.To.Type = obj.TYPE_MEM + p1.To.Reg = r0 + p1.RegTo2 = r2 + + // CMP Rarg1, Rtmp + p2 := s.Prog(cmp) + p2.From.Type = obj.TYPE_REG + p2.From.Reg = r1 + p2.Reg = arm64.REGTMP + + // CSET EQ, Rout + p3 := s.Prog(arm64.ACSET) + p3.From.Type = obj.TYPE_REG + p3.From.Reg = arm64.COND_EQ + p3.To.Type = obj.TYPE_REG + p3.To.Reg = out + case ssa.OpARM64LoweredAtomicAnd8, ssa.OpARM64LoweredAtomicAnd32, ssa.OpARM64LoweredAtomicOr8, @@ -725,6 +793,63 @@ func ssaGenValue(s *gc.SSAGenState, v *ssa.Value) { p3.From.Reg = arm64.REGTMP p3.To.Type = obj.TYPE_BRANCH gc.Patch(p3, p) + case ssa.OpARM64LoweredAtomicAnd8Variant, + ssa.OpARM64LoweredAtomicAnd32Variant: + atomic_clear := arm64.ALDCLRALW + if v.Op == ssa.OpARM64LoweredAtomicAnd8Variant { + atomic_clear = arm64.ALDCLRALB + } + r0 := v.Args[0].Reg() + r1 := v.Args[1].Reg() + out := v.Reg0() + + // MNV Rarg1 Rtemp + p := s.Prog(arm64.AMVN) + p.From.Type = obj.TYPE_REG + p.From.Reg = r1 + p.To.Type = obj.TYPE_REG + p.To.Reg = arm64.REGTMP + + // LDCLRALW Rtemp, (Rarg0), Rout + p1 := s.Prog(atomic_clear) + p1.From.Type = obj.TYPE_REG + p1.From.Reg = arm64.REGTMP + p1.To.Type = obj.TYPE_MEM + p1.To.Reg = r0 + p1.RegTo2 = out + + // AND Rarg1, Rout + p2 := s.Prog(arm64.AAND) + p2.From.Type = obj.TYPE_REG + p2.From.Reg = r1 + p2.To.Type = obj.TYPE_REG + p2.To.Reg = out + + case ssa.OpARM64LoweredAtomicOr8Variant, + ssa.OpARM64LoweredAtomicOr32Variant: + atomic_or := arm64.ALDORALW + if v.Op == ssa.OpARM64LoweredAtomicOr8Variant { + atomic_or = arm64.ALDORALB + } + r0 := v.Args[0].Reg() + r1 := v.Args[1].Reg() + out := v.Reg0() + + // LDORALW Rarg1, (Rarg0), Rout + p := s.Prog(atomic_or) + p.From.Type = obj.TYPE_REG + p.From.Reg = r1 + p.To.Type = obj.TYPE_MEM + p.To.Reg = r0 + p.RegTo2 = out + + // ORR Rarg1, Rout + p2 := s.Prog(arm64.AORR) + p2.From.Type = obj.TYPE_REG + p2.From.Reg = r1 + p2.To.Type = obj.TYPE_REG + p2.To.Reg = out + case ssa.OpARM64MOVBreg, ssa.OpARM64MOVBUreg, ssa.OpARM64MOVHreg, diff --git a/src/cmd/compile/internal/gc/ssa.go b/src/cmd/compile/internal/gc/ssa.go index 67484904a9..0b38e70cd2 100644 --- a/src/cmd/compile/internal/gc/ssa.go +++ b/src/cmd/compile/internal/gc/ssa.go @@ -3458,31 +3458,19 @@ func init() { s.vars[&memVar] = s.newValue1(ssa.OpSelect1, types.TypeMem, v) return s.newValue1(ssa.OpSelect0, types.Types[TUINT32], v) }, - sys.AMD64, sys.ARM64, sys.MIPS, sys.MIPS64, sys.PPC64, sys.RISCV64, sys.S390X) + sys.AMD64, sys.MIPS, sys.MIPS64, sys.PPC64, sys.RISCV64, sys.S390X) addF("runtime/internal/atomic", "Xchg64", func(s *state, n *Node, args []*ssa.Value) *ssa.Value { v := s.newValue3(ssa.OpAtomicExchange64, types.NewTuple(types.Types[TUINT64], types.TypeMem), args[0], args[1], s.mem()) s.vars[&memVar] = s.newValue1(ssa.OpSelect1, types.TypeMem, v) return s.newValue1(ssa.OpSelect0, types.Types[TUINT64], v) }, - sys.AMD64, sys.ARM64, sys.MIPS64, sys.PPC64, sys.RISCV64, sys.S390X) - - addF("runtime/internal/atomic", "Xadd", - func(s *state, n *Node, args []*ssa.Value) *ssa.Value { - v := s.newValue3(ssa.OpAtomicAdd32, types.NewTuple(types.Types[TUINT32], types.TypeMem), args[0], args[1], s.mem()) - s.vars[&memVar] = s.newValue1(ssa.OpSelect1, types.TypeMem, v) - return s.newValue1(ssa.OpSelect0, types.Types[TUINT32], v) - }, - sys.AMD64, sys.MIPS, sys.MIPS64, sys.PPC64, sys.RISCV64, sys.S390X) - addF("runtime/internal/atomic", "Xadd64", - func(s *state, n *Node, args []*ssa.Value) *ssa.Value { - v := s.newValue3(ssa.OpAtomicAdd64, types.NewTuple(types.Types[TUINT64], types.TypeMem), args[0], args[1], s.mem()) - s.vars[&memVar] = s.newValue1(ssa.OpSelect1, types.TypeMem, v) - return s.newValue1(ssa.OpSelect0, types.Types[TUINT64], v) - }, sys.AMD64, sys.MIPS64, sys.PPC64, sys.RISCV64, sys.S390X) - makeXaddARM64 := func(op0 ssa.Op, op1 ssa.Op, ty types.EType) func(s *state, n *Node, args []*ssa.Value) *ssa.Value { + type atomicOpEmitter func(s *state, n *Node, args []*ssa.Value, op ssa.Op, typ types.EType) + + makeAtomicGuardedIntrinsicARM64 := func(op0, op1 ssa.Op, typ, rtyp types.EType, emit atomicOpEmitter) intrinsicBuilder { + return func(s *state, n *Node, args []*ssa.Value) *ssa.Value { // Target Atomic feature is identified by dynamic detection addr := s.entryNewValue1A(ssa.OpAddr, types.Types[TBOOL].PtrTo(), arm64HasATOMICS, s.sb) @@ -3495,33 +3483,60 @@ func init() { bEnd := s.f.NewBlock(ssa.BlockPlain) b.AddEdgeTo(bTrue) b.AddEdgeTo(bFalse) - b.Likely = ssa.BranchUnlikely // most machines don't have Atomics nowadays + b.Likely = ssa.BranchLikely // We have atomic instructions - use it directly. s.startBlock(bTrue) - v0 := s.newValue3(op1, types.NewTuple(types.Types[ty], types.TypeMem), args[0], args[1], s.mem()) - s.vars[&memVar] = s.newValue1(ssa.OpSelect1, types.TypeMem, v0) - s.vars[n] = s.newValue1(ssa.OpSelect0, types.Types[ty], v0) + emit(s, n, args, op1, typ) s.endBlock().AddEdgeTo(bEnd) // Use original instruction sequence. s.startBlock(bFalse) - v1 := s.newValue3(op0, types.NewTuple(types.Types[ty], types.TypeMem), args[0], args[1], s.mem()) - s.vars[&memVar] = s.newValue1(ssa.OpSelect1, types.TypeMem, v1) - s.vars[n] = s.newValue1(ssa.OpSelect0, types.Types[ty], v1) + emit(s, n, args, op0, typ) s.endBlock().AddEdgeTo(bEnd) // Merge results. s.startBlock(bEnd) - return s.variable(n, types.Types[ty]) + if rtyp == TNIL { + return nil + } else { + return s.variable(n, types.Types[rtyp]) + } } } + atomicXchgXaddEmitterARM64 := func(s *state, n *Node, args []*ssa.Value, op ssa.Op, typ types.EType) { + v := s.newValue3(op, types.NewTuple(types.Types[typ], types.TypeMem), args[0], args[1], s.mem()) + s.vars[&memVar] = s.newValue1(ssa.OpSelect1, types.TypeMem, v) + s.vars[n] = s.newValue1(ssa.OpSelect0, types.Types[typ], v) + } + addF("runtime/internal/atomic", "Xchg", + makeAtomicGuardedIntrinsicARM64(ssa.OpAtomicExchange32, ssa.OpAtomicExchange32Variant, TUINT32, TUINT32, atomicXchgXaddEmitterARM64), + sys.ARM64) + addF("runtime/internal/atomic", "Xchg64", + makeAtomicGuardedIntrinsicARM64(ssa.OpAtomicExchange64, ssa.OpAtomicExchange64Variant, TUINT64, TUINT64, atomicXchgXaddEmitterARM64), + sys.ARM64) + addF("runtime/internal/atomic", "Xadd", - makeXaddARM64(ssa.OpAtomicAdd32, ssa.OpAtomicAdd32Variant, TUINT32), + func(s *state, n *Node, args []*ssa.Value) *ssa.Value { + v := s.newValue3(ssa.OpAtomicAdd32, types.NewTuple(types.Types[TUINT32], types.TypeMem), args[0], args[1], s.mem()) + s.vars[&memVar] = s.newValue1(ssa.OpSelect1, types.TypeMem, v) + return s.newValue1(ssa.OpSelect0, types.Types[TUINT32], v) + }, + sys.AMD64, sys.MIPS, sys.MIPS64, sys.PPC64, sys.RISCV64, sys.S390X) + addF("runtime/internal/atomic", "Xadd64", + func(s *state, n *Node, args []*ssa.Value) *ssa.Value { + v := s.newValue3(ssa.OpAtomicAdd64, types.NewTuple(types.Types[TUINT64], types.TypeMem), args[0], args[1], s.mem()) + s.vars[&memVar] = s.newValue1(ssa.OpSelect1, types.TypeMem, v) + return s.newValue1(ssa.OpSelect0, types.Types[TUINT64], v) + }, + sys.AMD64, sys.MIPS64, sys.PPC64, sys.RISCV64, sys.S390X) + + addF("runtime/internal/atomic", "Xadd", + makeAtomicGuardedIntrinsicARM64(ssa.OpAtomicAdd32, ssa.OpAtomicAdd32Variant, TUINT32, TUINT32, atomicXchgXaddEmitterARM64), sys.ARM64) addF("runtime/internal/atomic", "Xadd64", - makeXaddARM64(ssa.OpAtomicAdd64, ssa.OpAtomicAdd64Variant, TUINT64), + makeAtomicGuardedIntrinsicARM64(ssa.OpAtomicAdd64, ssa.OpAtomicAdd64Variant, TUINT64, TUINT64, atomicXchgXaddEmitterARM64), sys.ARM64) addF("runtime/internal/atomic", "Cas", @@ -3530,14 +3545,14 @@ func init() { s.vars[&memVar] = s.newValue1(ssa.OpSelect1, types.TypeMem, v) return s.newValue1(ssa.OpSelect0, types.Types[TBOOL], v) }, - sys.AMD64, sys.ARM64, sys.MIPS, sys.MIPS64, sys.PPC64, sys.RISCV64, sys.S390X) + sys.AMD64, sys.MIPS, sys.MIPS64, sys.PPC64, sys.RISCV64, sys.S390X) addF("runtime/internal/atomic", "Cas64", func(s *state, n *Node, args []*ssa.Value) *ssa.Value { v := s.newValue4(ssa.OpAtomicCompareAndSwap64, types.NewTuple(types.Types[TBOOL], types.TypeMem), args[0], args[1], args[2], s.mem()) s.vars[&memVar] = s.newValue1(ssa.OpSelect1, types.TypeMem, v) return s.newValue1(ssa.OpSelect0, types.Types[TBOOL], v) }, - sys.AMD64, sys.ARM64, sys.MIPS64, sys.PPC64, sys.RISCV64, sys.S390X) + sys.AMD64, sys.MIPS64, sys.PPC64, sys.RISCV64, sys.S390X) addF("runtime/internal/atomic", "CasRel", func(s *state, n *Node, args []*ssa.Value) *ssa.Value { v := s.newValue4(ssa.OpAtomicCompareAndSwap32, types.NewTuple(types.Types[TBOOL], types.TypeMem), args[0], args[1], args[2], s.mem()) @@ -3546,18 +3561,31 @@ func init() { }, sys.PPC64) + atomicCasEmitterARM64 := func(s *state, n *Node, args []*ssa.Value, op ssa.Op, typ types.EType) { + v := s.newValue4(op, types.NewTuple(types.Types[TBOOL], types.TypeMem), args[0], args[1], args[2], s.mem()) + s.vars[&memVar] = s.newValue1(ssa.OpSelect1, types.TypeMem, v) + s.vars[n] = s.newValue1(ssa.OpSelect0, types.Types[typ], v) + } + + addF("runtime/internal/atomic", "Cas", + makeAtomicGuardedIntrinsicARM64(ssa.OpAtomicCompareAndSwap32, ssa.OpAtomicCompareAndSwap32Variant, TUINT32, TBOOL, atomicCasEmitterARM64), + sys.ARM64) + addF("runtime/internal/atomic", "Cas64", + makeAtomicGuardedIntrinsicARM64(ssa.OpAtomicCompareAndSwap64, ssa.OpAtomicCompareAndSwap64Variant, TUINT64, TBOOL, atomicCasEmitterARM64), + sys.ARM64) + addF("runtime/internal/atomic", "And8", func(s *state, n *Node, args []*ssa.Value) *ssa.Value { s.vars[&memVar] = s.newValue3(ssa.OpAtomicAnd8, types.TypeMem, args[0], args[1], s.mem()) return nil }, - sys.AMD64, sys.ARM64, sys.MIPS, sys.PPC64, sys.S390X) + sys.AMD64, sys.MIPS, sys.PPC64, sys.S390X) addF("runtime/internal/atomic", "And", func(s *state, n *Node, args []*ssa.Value) *ssa.Value { s.vars[&memVar] = s.newValue3(ssa.OpAtomicAnd32, types.TypeMem, args[0], args[1], s.mem()) return nil }, - sys.AMD64, sys.ARM64, sys.MIPS, sys.PPC64, sys.S390X) + sys.AMD64, sys.MIPS, sys.PPC64, sys.S390X) addF("runtime/internal/atomic", "Or8", func(s *state, n *Node, args []*ssa.Value) *ssa.Value { s.vars[&memVar] = s.newValue3(ssa.OpAtomicOr8, types.TypeMem, args[0], args[1], s.mem()) @@ -3569,7 +3597,24 @@ func init() { s.vars[&memVar] = s.newValue3(ssa.OpAtomicOr32, types.TypeMem, args[0], args[1], s.mem()) return nil }, - sys.AMD64, sys.ARM64, sys.MIPS, sys.PPC64, sys.S390X) + sys.AMD64, sys.MIPS, sys.PPC64, sys.S390X) + + atomicAndOrEmitterARM64 := func(s *state, n *Node, args []*ssa.Value, op ssa.Op, typ types.EType) { + s.vars[&memVar] = s.newValue3(op, types.TypeMem, args[0], args[1], s.mem()) + } + + addF("runtime/internal/atomic", "And8", + makeAtomicGuardedIntrinsicARM64(ssa.OpAtomicAnd8, ssa.OpAtomicAnd8Variant, TNIL, TNIL, atomicAndOrEmitterARM64), + sys.ARM64) + addF("runtime/internal/atomic", "And", + makeAtomicGuardedIntrinsicARM64(ssa.OpAtomicAnd32, ssa.OpAtomicAnd32Variant, TNIL, TNIL, atomicAndOrEmitterARM64), + sys.ARM64) + addF("runtime/internal/atomic", "Or8", + makeAtomicGuardedIntrinsicARM64(ssa.OpAtomicOr8, ssa.OpAtomicOr8Variant, TNIL, TNIL, atomicAndOrEmitterARM64), + sys.ARM64) + addF("runtime/internal/atomic", "Or", + makeAtomicGuardedIntrinsicARM64(ssa.OpAtomicOr32, ssa.OpAtomicOr32Variant, TNIL, TNIL, atomicAndOrEmitterARM64), + sys.ARM64) alias("runtime/internal/atomic", "Loadint64", "runtime/internal/atomic", "Load64", all...) alias("runtime/internal/atomic", "Xaddint64", "runtime/internal/atomic", "Xadd64", all...) diff --git a/src/cmd/compile/internal/ssa/gen/ARM64.rules b/src/cmd/compile/internal/ssa/gen/ARM64.rules index 7e014fe0a8..9edc0c94b0 100644 --- a/src/cmd/compile/internal/ssa/gen/ARM64.rules +++ b/src/cmd/compile/internal/ssa/gen/ARM64.rules @@ -543,17 +543,24 @@ (AtomicStore64 ...) => (STLR ...) (AtomicStorePtrNoWB ...) => (STLR ...) -(AtomicExchange(32|64) ...) => (LoweredAtomicExchange(32|64) ...) -(AtomicAdd(32|64) ...) => (LoweredAtomicAdd(32|64) ...) +(AtomicExchange(32|64) ...) => (LoweredAtomicExchange(32|64) ...) +(AtomicAdd(32|64) ...) => (LoweredAtomicAdd(32|64) ...) (AtomicCompareAndSwap(32|64) ...) => (LoweredAtomicCas(32|64) ...) +(AtomicAdd(32|64)Variant ...) => (LoweredAtomicAdd(32|64)Variant ...) +(AtomicExchange(32|64)Variant ...) => (LoweredAtomicExchange(32|64)Variant ...) +(AtomicCompareAndSwap(32|64)Variant ...) => (LoweredAtomicCas(32|64)Variant ...) + // Currently the updated value is not used, but we need a register to temporarily hold it. (AtomicAnd8 ptr val mem) => (Select1 (LoweredAtomicAnd8 ptr val mem)) (AtomicAnd32 ptr val mem) => (Select1 (LoweredAtomicAnd32 ptr val mem)) (AtomicOr8 ptr val mem) => (Select1 (LoweredAtomicOr8 ptr val mem)) (AtomicOr32 ptr val mem) => (Select1 (LoweredAtomicOr32 ptr val mem)) -(AtomicAdd(32|64)Variant ...) => (LoweredAtomicAdd(32|64)Variant ...) +(AtomicAnd8Variant ptr val mem) => (Select1 (LoweredAtomicAnd8Variant ptr val mem)) +(AtomicAnd32Variant ptr val mem) => (Select1 (LoweredAtomicAnd32Variant ptr val mem)) +(AtomicOr8Variant ptr val mem) => (Select1 (LoweredAtomicOr8Variant ptr val mem)) +(AtomicOr32Variant ptr val mem) => (Select1 (LoweredAtomicOr32Variant ptr val mem)) // Write barrier. (WB ...) => (LoweredWB ...) diff --git a/src/cmd/compile/internal/ssa/gen/ARM64Ops.go b/src/cmd/compile/internal/ssa/gen/ARM64Ops.go index fe9edbf933..87db2b7c9d 100644 --- a/src/cmd/compile/internal/ssa/gen/ARM64Ops.go +++ b/src/cmd/compile/internal/ssa/gen/ARM64Ops.go @@ -621,6 +621,12 @@ func init() { {name: "LoweredAtomicExchange64", argLength: 3, reg: gpxchg, resultNotInArgs: true, faultOnNilArg0: true, hasSideEffects: true, unsafePoint: true}, {name: "LoweredAtomicExchange32", argLength: 3, reg: gpxchg, resultNotInArgs: true, faultOnNilArg0: true, hasSideEffects: true, unsafePoint: true}, + // atomic exchange variant. + // store arg1 to arg0. arg2=mem. returns . auxint must be zero. + // SWPALD Rarg1, (Rarg0), Rout + {name: "LoweredAtomicExchange64Variant", argLength: 3, reg: gpxchg, resultNotInArgs: true, faultOnNilArg0: true, hasSideEffects: true}, + {name: "LoweredAtomicExchange32Variant", argLength: 3, reg: gpxchg, resultNotInArgs: true, faultOnNilArg0: true, hasSideEffects: true}, + // atomic add. // *arg0 += arg1. arg2=mem. returns . auxint must be zero. // LDAXR (Rarg0), Rout @@ -654,6 +660,21 @@ func init() { {name: "LoweredAtomicCas64", argLength: 4, reg: gpcas, resultNotInArgs: true, clobberFlags: true, faultOnNilArg0: true, hasSideEffects: true, unsafePoint: true}, {name: "LoweredAtomicCas32", argLength: 4, reg: gpcas, resultNotInArgs: true, clobberFlags: true, faultOnNilArg0: true, hasSideEffects: true, unsafePoint: true}, + // atomic compare and swap variant. + // arg0 = pointer, arg1 = old value, arg2 = new value, arg3 = memory. auxint must be zero. + // if *arg0 == arg1 { + // *arg0 = arg2 + // return (true, memory) + // } else { + // return (false, memory) + // } + // MOV Rarg1, Rtmp + // CASAL Rtmp, (Rarg0), Rarg2 + // CMP Rarg1, Rtmp + // CSET EQ, Rout + {name: "LoweredAtomicCas64Variant", argLength: 4, reg: gpcas, resultNotInArgs: true, clobberFlags: true, faultOnNilArg0: true, hasSideEffects: true, unsafePoint: true}, + {name: "LoweredAtomicCas32Variant", argLength: 4, reg: gpcas, resultNotInArgs: true, clobberFlags: true, faultOnNilArg0: true, hasSideEffects: true, unsafePoint: true}, + // atomic and/or. // *arg0 &= (|=) arg1. arg2=mem. returns . auxint must be zero. // LDAXR (Rarg0), Rout @@ -665,6 +686,20 @@ func init() { {name: "LoweredAtomicOr8", argLength: 3, reg: gpxchg, resultNotInArgs: true, asm: "ORR", typ: "(UInt8,Mem)", faultOnNilArg0: true, hasSideEffects: true, unsafePoint: true}, {name: "LoweredAtomicOr32", argLength: 3, reg: gpxchg, resultNotInArgs: true, asm: "ORR", typ: "(UInt32,Mem)", faultOnNilArg0: true, hasSideEffects: true, unsafePoint: true}, + // atomic and/or variant. + // *arg0 &= (|=) arg1. arg2=mem. returns . auxint must be zero. + // AND: + // MNV Rarg1, Rtemp + // LDANDALB Rtemp, (Rarg0), Rout + // AND Rarg1, Rout + // OR: + // LDORALB Rarg1, (Rarg0), Rout + // ORR Rarg1, Rout + {name: "LoweredAtomicAnd8Variant", argLength: 3, reg: gpxchg, resultNotInArgs: true, typ: "(UInt8,Mem)", faultOnNilArg0: true, hasSideEffects: true, unsafePoint: true}, + {name: "LoweredAtomicAnd32Variant", argLength: 3, reg: gpxchg, resultNotInArgs: true, typ: "(UInt32,Mem)", faultOnNilArg0: true, hasSideEffects: true, unsafePoint: true}, + {name: "LoweredAtomicOr8Variant", argLength: 3, reg: gpxchg, resultNotInArgs: true, typ: "(UInt8,Mem)", faultOnNilArg0: true, hasSideEffects: true}, + {name: "LoweredAtomicOr32Variant", argLength: 3, reg: gpxchg, resultNotInArgs: true, typ: "(UInt32,Mem)", faultOnNilArg0: true, hasSideEffects: true}, + // LoweredWB invokes runtime.gcWriteBarrier. arg0=destptr, arg1=srcptr, arg2=mem, aux=runtime.gcWriteBarrier // It saves all GP registers if necessary, // but clobbers R30 (LR) because it's a call. diff --git a/src/cmd/compile/internal/ssa/gen/genericOps.go b/src/cmd/compile/internal/ssa/gen/genericOps.go index db8d7ba0cf..9565199d51 100644 --- a/src/cmd/compile/internal/ssa/gen/genericOps.go +++ b/src/cmd/compile/internal/ssa/gen/genericOps.go @@ -574,8 +574,16 @@ var genericOps = []opData{ // These variants have the same semantics as above atomic operations. // But they are used for generating more efficient code on certain modern machines, with run-time CPU feature detection. // Currently, they are used on ARM64 only. - {name: "AtomicAdd32Variant", argLength: 3, typ: "(UInt32,Mem)", hasSideEffects: true}, // Do *arg0 += arg1. arg2=memory. Returns sum and new memory. - {name: "AtomicAdd64Variant", argLength: 3, typ: "(UInt64,Mem)", hasSideEffects: true}, // Do *arg0 += arg1. arg2=memory. Returns sum and new memory. + {name: "AtomicAdd32Variant", argLength: 3, typ: "(UInt32,Mem)", hasSideEffects: true}, // Do *arg0 += arg1. arg2=memory. Returns sum and new memory. + {name: "AtomicAdd64Variant", argLength: 3, typ: "(UInt64,Mem)", hasSideEffects: true}, // Do *arg0 += arg1. arg2=memory. Returns sum and new memory. + {name: "AtomicExchange32Variant", argLength: 3, typ: "(UInt32,Mem)", hasSideEffects: true}, // Store arg1 to *arg0. arg2=memory. Returns old contents of *arg0 and new memory. + {name: "AtomicExchange64Variant", argLength: 3, typ: "(UInt64,Mem)", hasSideEffects: true}, // Store arg1 to *arg0. arg2=memory. Returns old contents of *arg0 and new memory. + {name: "AtomicCompareAndSwap32Variant", argLength: 4, typ: "(Bool,Mem)", hasSideEffects: true}, // if *arg0==arg1, then set *arg0=arg2. Returns true if store happens and new memory. + {name: "AtomicCompareAndSwap64Variant", argLength: 4, typ: "(Bool,Mem)", hasSideEffects: true}, // if *arg0==arg1, then set *arg0=arg2. Returns true if store happens and new memory. + {name: "AtomicAnd8Variant", argLength: 3, typ: "Mem", hasSideEffects: true}, // *arg0 &= arg1. arg2=memory. Returns memory. + {name: "AtomicAnd32Variant", argLength: 3, typ: "Mem", hasSideEffects: true}, // *arg0 &= arg1. arg2=memory. Returns memory. + {name: "AtomicOr8Variant", argLength: 3, typ: "Mem", hasSideEffects: true}, // *arg0 |= arg1. arg2=memory. Returns memory. + {name: "AtomicOr32Variant", argLength: 3, typ: "Mem", hasSideEffects: true}, // *arg0 |= arg1. arg2=memory. Returns memory. // Clobber experiment op {name: "Clobber", argLength: 0, typ: "Void", aux: "SymOff", symEffect: "None"}, // write an invalid pointer value to the given pointer slot of a stack variable diff --git a/src/cmd/compile/internal/ssa/opGen.go b/src/cmd/compile/internal/ssa/opGen.go index 25c1df12ee..c0b663cd8f 100644 --- a/src/cmd/compile/internal/ssa/opGen.go +++ b/src/cmd/compile/internal/ssa/opGen.go @@ -1581,16 +1581,24 @@ const ( OpARM64STLRW OpARM64LoweredAtomicExchange64 OpARM64LoweredAtomicExchange32 + OpARM64LoweredAtomicExchange64Variant + OpARM64LoweredAtomicExchange32Variant OpARM64LoweredAtomicAdd64 OpARM64LoweredAtomicAdd32 OpARM64LoweredAtomicAdd64Variant OpARM64LoweredAtomicAdd32Variant OpARM64LoweredAtomicCas64 OpARM64LoweredAtomicCas32 + OpARM64LoweredAtomicCas64Variant + OpARM64LoweredAtomicCas32Variant OpARM64LoweredAtomicAnd8 OpARM64LoweredAtomicAnd32 OpARM64LoweredAtomicOr8 OpARM64LoweredAtomicOr32 + OpARM64LoweredAtomicAnd8Variant + OpARM64LoweredAtomicAnd32Variant + OpARM64LoweredAtomicOr8Variant + OpARM64LoweredAtomicOr32Variant OpARM64LoweredWB OpARM64LoweredPanicBoundsA OpARM64LoweredPanicBoundsB @@ -2881,6 +2889,14 @@ const ( OpAtomicOr32 OpAtomicAdd32Variant OpAtomicAdd64Variant + OpAtomicExchange32Variant + OpAtomicExchange64Variant + OpAtomicCompareAndSwap32Variant + OpAtomicCompareAndSwap64Variant + OpAtomicAnd8Variant + OpAtomicAnd32Variant + OpAtomicOr8Variant + OpAtomicOr32Variant OpClobber ) @@ -20994,6 +21010,38 @@ var opcodeTable = [...]opInfo{ }, }, }, + { + name: "LoweredAtomicExchange64Variant", + argLen: 3, + resultNotInArgs: true, + faultOnNilArg0: true, + hasSideEffects: true, + reg: regInfo{ + inputs: []inputInfo{ + {1, 805044223}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 g R30 + {0, 9223372038733561855}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 g R30 SP SB + }, + outputs: []outputInfo{ + {0, 670826495}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 R30 + }, + }, + }, + { + name: "LoweredAtomicExchange32Variant", + argLen: 3, + resultNotInArgs: true, + faultOnNilArg0: true, + hasSideEffects: true, + reg: regInfo{ + inputs: []inputInfo{ + {1, 805044223}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 g R30 + {0, 9223372038733561855}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 g R30 SP SB + }, + outputs: []outputInfo{ + {0, 670826495}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 R30 + }, + }, + }, { name: "LoweredAtomicAdd64", argLen: 3, @@ -21098,6 +21146,44 @@ var opcodeTable = [...]opInfo{ }, }, }, + { + name: "LoweredAtomicCas64Variant", + argLen: 4, + resultNotInArgs: true, + clobberFlags: true, + faultOnNilArg0: true, + hasSideEffects: true, + unsafePoint: true, + reg: regInfo{ + inputs: []inputInfo{ + {1, 805044223}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 g R30 + {2, 805044223}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 g R30 + {0, 9223372038733561855}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 g R30 SP SB + }, + outputs: []outputInfo{ + {0, 670826495}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 R30 + }, + }, + }, + { + name: "LoweredAtomicCas32Variant", + argLen: 4, + resultNotInArgs: true, + clobberFlags: true, + faultOnNilArg0: true, + hasSideEffects: true, + unsafePoint: true, + reg: regInfo{ + inputs: []inputInfo{ + {1, 805044223}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 g R30 + {2, 805044223}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 g R30 + {0, 9223372038733561855}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 g R30 SP SB + }, + outputs: []outputInfo{ + {0, 670826495}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 R30 + }, + }, + }, { name: "LoweredAtomicAnd8", argLen: 3, @@ -21170,6 +21256,72 @@ var opcodeTable = [...]opInfo{ }, }, }, + { + name: "LoweredAtomicAnd8Variant", + argLen: 3, + resultNotInArgs: true, + faultOnNilArg0: true, + hasSideEffects: true, + unsafePoint: true, + reg: regInfo{ + inputs: []inputInfo{ + {1, 805044223}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 g R30 + {0, 9223372038733561855}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 g R30 SP SB + }, + outputs: []outputInfo{ + {0, 670826495}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 R30 + }, + }, + }, + { + name: "LoweredAtomicAnd32Variant", + argLen: 3, + resultNotInArgs: true, + faultOnNilArg0: true, + hasSideEffects: true, + unsafePoint: true, + reg: regInfo{ + inputs: []inputInfo{ + {1, 805044223}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 g R30 + {0, 9223372038733561855}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 g R30 SP SB + }, + outputs: []outputInfo{ + {0, 670826495}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 R30 + }, + }, + }, + { + name: "LoweredAtomicOr8Variant", + argLen: 3, + resultNotInArgs: true, + faultOnNilArg0: true, + hasSideEffects: true, + reg: regInfo{ + inputs: []inputInfo{ + {1, 805044223}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 g R30 + {0, 9223372038733561855}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 g R30 SP SB + }, + outputs: []outputInfo{ + {0, 670826495}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 R30 + }, + }, + }, + { + name: "LoweredAtomicOr32Variant", + argLen: 3, + resultNotInArgs: true, + faultOnNilArg0: true, + hasSideEffects: true, + reg: regInfo{ + inputs: []inputInfo{ + {1, 805044223}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 g R30 + {0, 9223372038733561855}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 g R30 SP SB + }, + outputs: []outputInfo{ + {0, 670826495}, // R0 R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R14 R15 R16 R17 R19 R20 R21 R22 R23 R24 R25 R26 R30 + }, + }, + }, { name: "LoweredWB", auxType: auxSym, @@ -35874,6 +36026,54 @@ var opcodeTable = [...]opInfo{ hasSideEffects: true, generic: true, }, + { + name: "AtomicExchange32Variant", + argLen: 3, + hasSideEffects: true, + generic: true, + }, + { + name: "AtomicExchange64Variant", + argLen: 3, + hasSideEffects: true, + generic: true, + }, + { + name: "AtomicCompareAndSwap32Variant", + argLen: 4, + hasSideEffects: true, + generic: true, + }, + { + name: "AtomicCompareAndSwap64Variant", + argLen: 4, + hasSideEffects: true, + generic: true, + }, + { + name: "AtomicAnd8Variant", + argLen: 3, + hasSideEffects: true, + generic: true, + }, + { + name: "AtomicAnd32Variant", + argLen: 3, + hasSideEffects: true, + generic: true, + }, + { + name: "AtomicOr8Variant", + argLen: 3, + hasSideEffects: true, + generic: true, + }, + { + name: "AtomicOr32Variant", + argLen: 3, + hasSideEffects: true, + generic: true, + }, { name: "Clobber", auxType: auxSymOff, diff --git a/src/cmd/compile/internal/ssa/rewriteARM64.go b/src/cmd/compile/internal/ssa/rewriteARM64.go index 9a5e976dea..353696bf39 100644 --- a/src/cmd/compile/internal/ssa/rewriteARM64.go +++ b/src/cmd/compile/internal/ssa/rewriteARM64.go @@ -426,20 +426,36 @@ func rewriteValueARM64(v *Value) bool { return true case OpAtomicAnd32: return rewriteValueARM64_OpAtomicAnd32(v) + case OpAtomicAnd32Variant: + return rewriteValueARM64_OpAtomicAnd32Variant(v) case OpAtomicAnd8: return rewriteValueARM64_OpAtomicAnd8(v) + case OpAtomicAnd8Variant: + return rewriteValueARM64_OpAtomicAnd8Variant(v) case OpAtomicCompareAndSwap32: v.Op = OpARM64LoweredAtomicCas32 return true + case OpAtomicCompareAndSwap32Variant: + v.Op = OpARM64LoweredAtomicCas32Variant + return true case OpAtomicCompareAndSwap64: v.Op = OpARM64LoweredAtomicCas64 return true + case OpAtomicCompareAndSwap64Variant: + v.Op = OpARM64LoweredAtomicCas64Variant + return true case OpAtomicExchange32: v.Op = OpARM64LoweredAtomicExchange32 return true + case OpAtomicExchange32Variant: + v.Op = OpARM64LoweredAtomicExchange32Variant + return true case OpAtomicExchange64: v.Op = OpARM64LoweredAtomicExchange64 return true + case OpAtomicExchange64Variant: + v.Op = OpARM64LoweredAtomicExchange64Variant + return true case OpAtomicLoad32: v.Op = OpARM64LDARW return true @@ -454,8 +470,12 @@ func rewriteValueARM64(v *Value) bool { return true case OpAtomicOr32: return rewriteValueARM64_OpAtomicOr32(v) + case OpAtomicOr32Variant: + return rewriteValueARM64_OpAtomicOr32Variant(v) case OpAtomicOr8: return rewriteValueARM64_OpAtomicOr8(v) + case OpAtomicOr8Variant: + return rewriteValueARM64_OpAtomicOr8Variant(v) case OpAtomicStore32: v.Op = OpARM64STLRW return true @@ -21363,6 +21383,25 @@ func rewriteValueARM64_OpAtomicAnd32(v *Value) bool { return true } } +func rewriteValueARM64_OpAtomicAnd32Variant(v *Value) bool { + v_2 := v.Args[2] + v_1 := v.Args[1] + v_0 := v.Args[0] + b := v.Block + typ := &b.Func.Config.Types + // match: (AtomicAnd32Variant ptr val mem) + // result: (Select1 (LoweredAtomicAnd32Variant ptr val mem)) + for { + ptr := v_0 + val := v_1 + mem := v_2 + v.reset(OpSelect1) + v0 := b.NewValue0(v.Pos, OpARM64LoweredAtomicAnd32Variant, types.NewTuple(typ.UInt32, types.TypeMem)) + v0.AddArg3(ptr, val, mem) + v.AddArg(v0) + return true + } +} func rewriteValueARM64_OpAtomicAnd8(v *Value) bool { v_2 := v.Args[2] v_1 := v.Args[1] @@ -21382,6 +21421,25 @@ func rewriteValueARM64_OpAtomicAnd8(v *Value) bool { return true } } +func rewriteValueARM64_OpAtomicAnd8Variant(v *Value) bool { + v_2 := v.Args[2] + v_1 := v.Args[1] + v_0 := v.Args[0] + b := v.Block + typ := &b.Func.Config.Types + // match: (AtomicAnd8Variant ptr val mem) + // result: (Select1 (LoweredAtomicAnd8Variant ptr val mem)) + for { + ptr := v_0 + val := v_1 + mem := v_2 + v.reset(OpSelect1) + v0 := b.NewValue0(v.Pos, OpARM64LoweredAtomicAnd8Variant, types.NewTuple(typ.UInt8, types.TypeMem)) + v0.AddArg3(ptr, val, mem) + v.AddArg(v0) + return true + } +} func rewriteValueARM64_OpAtomicOr32(v *Value) bool { v_2 := v.Args[2] v_1 := v.Args[1] @@ -21401,6 +21459,25 @@ func rewriteValueARM64_OpAtomicOr32(v *Value) bool { return true } } +func rewriteValueARM64_OpAtomicOr32Variant(v *Value) bool { + v_2 := v.Args[2] + v_1 := v.Args[1] + v_0 := v.Args[0] + b := v.Block + typ := &b.Func.Config.Types + // match: (AtomicOr32Variant ptr val mem) + // result: (Select1 (LoweredAtomicOr32Variant ptr val mem)) + for { + ptr := v_0 + val := v_1 + mem := v_2 + v.reset(OpSelect1) + v0 := b.NewValue0(v.Pos, OpARM64LoweredAtomicOr32Variant, types.NewTuple(typ.UInt32, types.TypeMem)) + v0.AddArg3(ptr, val, mem) + v.AddArg(v0) + return true + } +} func rewriteValueARM64_OpAtomicOr8(v *Value) bool { v_2 := v.Args[2] v_1 := v.Args[1] @@ -21420,6 +21497,25 @@ func rewriteValueARM64_OpAtomicOr8(v *Value) bool { return true } } +func rewriteValueARM64_OpAtomicOr8Variant(v *Value) bool { + v_2 := v.Args[2] + v_1 := v.Args[1] + v_0 := v.Args[0] + b := v.Block + typ := &b.Func.Config.Types + // match: (AtomicOr8Variant ptr val mem) + // result: (Select1 (LoweredAtomicOr8Variant ptr val mem)) + for { + ptr := v_0 + val := v_1 + mem := v_2 + v.reset(OpSelect1) + v0 := b.NewValue0(v.Pos, OpARM64LoweredAtomicOr8Variant, types.NewTuple(typ.UInt8, types.TypeMem)) + v0.AddArg3(ptr, val, mem) + v.AddArg(v0) + return true + } +} func rewriteValueARM64_OpAvg64u(v *Value) bool { v_1 := v.Args[1] v_0 := v.Args[0] diff --git a/src/runtime/internal/atomic/bench_test.go b/src/runtime/internal/atomic/bench_test.go index 434aa6d434..2476c06c52 100644 --- a/src/runtime/internal/atomic/bench_test.go +++ b/src/runtime/internal/atomic/bench_test.go @@ -142,3 +142,54 @@ func BenchmarkXadd64(b *testing.B) { } }) } + +func BenchmarkCas(b *testing.B) { + var x uint32 + x = 1 + ptr := &x + b.RunParallel(func(pb *testing.PB) { + for pb.Next() { + atomic.Cas(ptr, 1, 0) + atomic.Cas(ptr, 0, 1) + } + }) +} + +func BenchmarkCas64(b *testing.B) { + var x uint64 + x = 1 + ptr := &x + b.RunParallel(func(pb *testing.PB) { + for pb.Next() { + atomic.Cas64(ptr, 1, 0) + atomic.Cas64(ptr, 0, 1) + } + }) +} +func BenchmarkXchg(b *testing.B) { + var x uint32 + x = 1 + ptr := &x + b.RunParallel(func(pb *testing.PB) { + var y uint32 + y = 1 + for pb.Next() { + y = atomic.Xchg(ptr, y) + y += 1 + } + }) +} + +func BenchmarkXchg64(b *testing.B) { + var x uint64 + x = 1 + ptr := &x + b.RunParallel(func(pb *testing.PB) { + var y uint64 + y = 1 + for pb.Next() { + y = atomic.Xchg64(ptr, y) + y += 1 + } + }) +} -- cgit v1.3 From 4f1b0a44cb46f3df28f5ef82e5769ebeac1bc493 Mon Sep 17 00:00:00 2001 From: Russ Cox Date: Thu, 29 Oct 2020 14:17:47 -0400 Subject: all: update to use os.ReadFile, os.WriteFile, os.CreateTemp, os.MkdirTemp As part of #42026, these helpers from io/ioutil were moved to os. (ioutil.TempFile and TempDir became os.CreateTemp and MkdirTemp.) Update the Go tree to use the preferred names. As usual, code compiled with the Go 1.4 bootstrap toolchain and code vendored from other sources is excluded. ReadDir changes are in a separate CL, because they are not a simple search and replace. For #42026. Change-Id: If318df0216d57e95ea0c4093b89f65e5b0ababb3 Reviewed-on: https://go-review.googlesource.com/c/go/+/266365 Trust: Russ Cox Run-TryBot: Russ Cox TryBot-Result: Go Bot Reviewed-by: Ian Lance Taylor --- src/archive/tar/reader_test.go | 3 +- src/archive/tar/tar_test.go | 3 +- src/archive/tar/writer_test.go | 3 +- src/archive/zip/reader_test.go | 11 +++--- src/archive/zip/writer_test.go | 4 +-- src/cmd/addr2line/addr2line_test.go | 7 ++-- src/cmd/api/goapi.go | 3 +- src/cmd/api/goapi_test.go | 3 +- src/cmd/cover/cover.go | 3 +- src/cmd/cover/cover_test.go | 31 ++++++++-------- src/cmd/cover/html.go | 5 ++- src/cmd/fix/main.go | 3 +- src/cmd/fix/typecheck.go | 7 ++-- src/cmd/go/go_test.go | 19 +++++----- src/cmd/go/go_windows_test.go | 5 ++- src/cmd/go/help_test.go | 4 +-- src/cmd/go/internal/auth/netrc.go | 3 +- src/cmd/go/internal/bug/bug.go | 5 ++- src/cmd/go/internal/cache/cache.go | 5 ++- src/cmd/go/internal/cache/cache_test.go | 13 ++++--- src/cmd/go/internal/cache/default.go | 3 +- src/cmd/go/internal/cache/hash_test.go | 3 +- src/cmd/go/internal/cfg/cfg.go | 3 +- src/cmd/go/internal/envcmd/env.go | 7 ++-- src/cmd/go/internal/fsys/fsys.go | 2 +- src/cmd/go/internal/fsys/fsys_test.go | 3 +- src/cmd/go/internal/generate/generate.go | 3 +- src/cmd/go/internal/imports/scan_test.go | 5 +-- src/cmd/go/internal/load/pkg.go | 4 +-- .../lockedfile/internal/filelock/filelock_test.go | 5 ++- src/cmd/go/internal/lockedfile/lockedfile_test.go | 9 +++-- src/cmd/go/internal/modcmd/vendor.go | 2 +- src/cmd/go/internal/modcmd/verify.go | 3 +- src/cmd/go/internal/modconv/convert_test.go | 5 ++- src/cmd/go/internal/modconv/modconv_test.go | 6 ++-- src/cmd/go/internal/modfetch/cache_test.go | 3 +- src/cmd/go/internal/modfetch/codehost/codehost.go | 5 ++- src/cmd/go/internal/modfetch/codehost/git_test.go | 3 +- src/cmd/go/internal/modfetch/codehost/shell.go | 3 +- src/cmd/go/internal/modfetch/codehost/vcs.go | 3 +- src/cmd/go/internal/modfetch/coderepo.go | 3 +- src/cmd/go/internal/modfetch/coderepo_test.go | 13 ++++--- src/cmd/go/internal/modfetch/fetch.go | 5 ++- .../internal/modfetch/zip_sum_test/zip_sum_test.go | 3 +- src/cmd/go/internal/modload/init.go | 8 ++--- src/cmd/go/internal/modload/query_test.go | 3 +- src/cmd/go/internal/modload/vendor.go | 4 +-- src/cmd/go/internal/renameio/renameio.go | 4 +-- src/cmd/go/internal/renameio/renameio_test.go | 3 +- src/cmd/go/internal/renameio/umask_test.go | 3 +- src/cmd/go/internal/robustio/robustio.go | 2 +- src/cmd/go/internal/robustio/robustio_flaky.go | 5 ++- src/cmd/go/internal/robustio/robustio_other.go | 3 +- src/cmd/go/internal/test/test.go | 4 +-- src/cmd/go/internal/txtar/archive.go | 4 +-- src/cmd/go/internal/vcs/vcs_test.go | 3 +- src/cmd/go/internal/web/file_test.go | 3 +- src/cmd/go/internal/work/action.go | 3 +- src/cmd/go/internal/work/build_test.go | 9 +++-- src/cmd/go/internal/work/buildid.go | 3 +- src/cmd/go/internal/work/exec.go | 17 +++++---- src/cmd/go/internal/work/gc.go | 7 ++-- src/cmd/go/internal/work/gccgo.go | 3 +- src/cmd/go/script_test.go | 23 ++++++------ src/cmd/go/testdata/addmod.go | 13 ++++--- src/cmd/go/testdata/savedir.go | 3 +- src/cmd/go/testdata/script/build_issue6480.txt | 5 ++- src/cmd/go/testdata/script/build_trimpath.txt | 3 +- src/cmd/go/testdata/script/cover_error.txt | 5 ++- src/cmd/go/testdata/script/gopath_moved_repo.txt | 5 ++- .../script/mod_download_concurrent_read.txt | 3 +- src/cmd/go/testdata/script/mod_modinfo.txt | 3 +- src/cmd/go/testdata/script/mod_test_cached.txt | 7 ++-- .../go/testdata/script/test_compile_tempfile.txt | 2 +- src/cmd/go/testdata/script/test_generated_main.txt | 3 +- .../go/testdata/script/test_race_install_cgo.txt | 8 ++--- src/cmd/gofmt/gofmt.go | 5 ++- src/cmd/gofmt/gofmt_test.go | 13 ++++--- src/cmd/nm/nm_test.go | 9 +++-- src/cmd/objdump/objdump_test.go | 5 ++- src/cmd/pack/pack_test.go | 13 ++++--- src/cmd/trace/annotations_test.go | 4 +-- src/cmd/trace/pprof.go | 3 +- src/cmd/vet/vet_test.go | 5 ++- src/compress/bzip2/bzip2_test.go | 4 +-- src/compress/flate/deflate_test.go | 6 ++-- src/compress/flate/huffman_bit_writer_test.go | 29 ++++++++------- src/compress/flate/reader_test.go | 4 +-- src/compress/lzw/reader_test.go | 4 +-- src/compress/lzw/writer_test.go | 3 +- src/compress/zlib/writer_test.go | 3 +- src/crypto/md5/gen.go | 4 +-- src/crypto/tls/handshake_test.go | 3 +- src/crypto/tls/link_test.go | 3 +- src/crypto/tls/tls.go | 6 ++-- src/crypto/x509/name_constraints_test.go | 3 +- src/crypto/x509/root_ios_gen.go | 4 +-- src/crypto/x509/root_plan9.go | 3 +- src/crypto/x509/root_unix.go | 4 +-- src/crypto/x509/root_unix_test.go | 5 ++- src/debug/dwarf/dwarf5ranges_test.go | 4 +-- src/debug/gosym/pclntab_test.go | 5 ++- src/debug/pe/file_test.go | 13 ++++--- src/embed/internal/embedtest/embedx_test.go | 4 +-- src/go/build/build_test.go | 11 +++--- src/go/doc/doc_test.go | 6 ++-- src/go/format/benchmark_test.go | 4 +-- src/go/format/format_test.go | 6 ++-- src/go/importer/importer_test.go | 3 +- src/go/internal/gccgoimporter/importer_test.go | 5 ++- src/go/internal/gcimporter/gcimporter_test.go | 6 ++-- src/go/internal/srcimporter/srcimporter.go | 3 +- src/go/parser/interface.go | 3 +- src/go/parser/performance_test.go | 4 +-- src/go/printer/performance_test.go | 4 +-- src/go/printer/printer_test.go | 12 +++---- src/go/scanner/scanner_test.go | 3 +- src/go/types/check_test.go | 3 +- src/go/types/hilbert_test.go | 4 +-- src/hash/crc32/gen_const_ppc64le.go | 4 +-- src/html/template/examplefiles_test.go | 3 +- src/html/template/template.go | 4 +-- src/image/color/palette/gen.go | 4 +-- src/image/gif/reader_test.go | 4 +-- src/image/internal/imageutil/gen.go | 3 +- src/image/jpeg/reader_test.go | 7 ++-- src/image/png/reader_test.go | 3 +- src/index/suffixarray/gen.go | 6 ++-- src/index/suffixarray/suffixarray_test.go | 6 ++-- src/internal/cpu/cpu_s390x_test.go | 4 +-- src/internal/obscuretestdata/obscuretestdata.go | 3 +- src/internal/poll/read_test.go | 3 +- src/internal/testenv/testenv_windows.go | 3 +- src/internal/trace/gc_test.go | 6 ++-- src/internal/trace/parser_test.go | 2 +- src/log/syslog/syslog_test.go | 5 ++- src/math/big/link_test.go | 4 +-- src/math/bits/make_examples.go | 4 +-- src/math/bits/make_tables.go | 4 +-- src/mime/multipart/formdata.go | 3 +- src/net/dnsclient_unix_test.go | 3 +- src/net/error_test.go | 3 +- src/net/http/filetransport_test.go | 5 ++- src/net/http/fs_test.go | 8 ++--- src/net/http/request_test.go | 3 +- src/net/http/transfer_test.go | 3 +- src/net/http/transport_test.go | 3 +- src/net/mockserver_test.go | 5 ++- src/net/net_windows_test.go | 7 ++-- src/net/unixsock_test.go | 3 +- src/os/error_test.go | 9 +++-- src/os/exec/exec_test.go | 2 +- src/os/exec/lp_unix_test.go | 3 +- src/os/exec/lp_windows_test.go | 7 ++-- src/os/fifo_test.go | 3 +- src/os/os_test.go | 42 +++++++++++----------- src/os/os_unix_test.go | 4 +-- src/os/os_windows_test.go | 29 ++++++++------- src/os/path_test.go | 4 +-- src/os/path_windows_test.go | 3 +- src/os/pipe_test.go | 3 +- src/os/readfrom_linux_test.go | 4 +-- src/os/removeall_test.go | 20 +++++------ src/os/signal/signal_test.go | 3 +- src/os/signal/signal_windows_test.go | 3 +- src/os/stat_test.go | 9 +++-- src/os/timeout_test.go | 3 +- src/os/user/lookup_plan9.go | 3 +- src/path/filepath/example_unix_walk_test.go | 3 +- src/path/filepath/match_test.go | 7 ++-- src/path/filepath/path_test.go | 33 +++++++++-------- src/path/filepath/path_windows_test.go | 19 +++++----- src/runtime/crash_test.go | 3 +- src/runtime/crash_unix_test.go | 5 ++- src/runtime/debug/heapdump_test.go | 5 ++- src/runtime/debug_test.go | 4 +-- src/runtime/env_plan9.go | 4 +-- src/runtime/internal/sys/gengoos.go | 8 ++--- src/runtime/memmove_linux_amd64_test.go | 3 +- src/runtime/mkduff.go | 4 +-- src/runtime/mkfastlog2table.go | 4 +-- src/runtime/mksizeclasses.go | 3 +- src/runtime/pprof/pprof_test.go | 5 ++- src/runtime/pprof/proto.go | 4 +-- src/runtime/pprof/proto_test.go | 3 +- src/runtime/race/output_test.go | 5 ++- src/runtime/race/testdata/io_test.go | 3 +- src/runtime/runtime-gdb_test.go | 25 +++++++------ src/runtime/runtime-lldb_test.go | 9 +++-- src/runtime/signal_windows_test.go | 5 ++- src/runtime/syscall_windows_test.go | 25 +++++++------ src/runtime/testdata/testprog/memprof.go | 3 +- src/runtime/testdata/testprog/syscalls_linux.go | 3 +- src/runtime/testdata/testprog/timeprof.go | 3 +- src/runtime/testdata/testprog/vdso.go | 3 +- src/runtime/testdata/testprogcgo/pprof.go | 3 +- src/runtime/testdata/testprogcgo/threadpprof.go | 3 +- src/runtime/trace/trace_test.go | 3 +- src/runtime/wincallback.go | 7 ++-- src/sort/genzfunc.go | 4 +-- src/strconv/makeisprint.go | 4 +-- src/syscall/dirent_test.go | 9 +++-- src/syscall/exec_linux_test.go | 15 ++++---- src/syscall/getdirentries_test.go | 5 ++- src/syscall/mkasm_darwin.go | 9 +++-- src/syscall/syscall_linux_test.go | 11 +++--- src/syscall/syscall_unix_test.go | 7 ++-- src/syscall/syscall_windows_test.go | 3 +- src/testing/testing.go | 5 ++- src/text/template/examplefiles_test.go | 3 +- src/text/template/helper.go | 4 +-- src/text/template/link_test.go | 7 ++-- src/time/genzabbrs.go | 4 +-- src/time/tzdata/generate_zipdata.go | 3 +- src/time/zoneinfo_read.go | 2 +- 215 files changed, 556 insertions(+), 704 deletions(-) (limited to 'src/runtime/internal') diff --git a/src/archive/tar/reader_test.go b/src/archive/tar/reader_test.go index 411d1e0b99..789ddc1bc0 100644 --- a/src/archive/tar/reader_test.go +++ b/src/archive/tar/reader_test.go @@ -10,7 +10,6 @@ import ( "errors" "fmt" "io" - "io/ioutil" "math" "os" "path" @@ -773,7 +772,7 @@ func TestReadTruncation(t *testing.T) { "testdata/pax-path-hdr.tar", "testdata/sparse-formats.tar", } { - buf, err := ioutil.ReadFile(p) + buf, err := os.ReadFile(p) if err != nil { t.Fatalf("unexpected error: %v", err) } diff --git a/src/archive/tar/tar_test.go b/src/archive/tar/tar_test.go index d4a3d42312..91b38401b6 100644 --- a/src/archive/tar/tar_test.go +++ b/src/archive/tar/tar_test.go @@ -11,7 +11,6 @@ import ( "internal/testenv" "io" "io/fs" - "io/ioutil" "math" "os" "path" @@ -263,7 +262,7 @@ func TestFileInfoHeaderDir(t *testing.T) { func TestFileInfoHeaderSymlink(t *testing.T) { testenv.MustHaveSymlink(t) - tmpdir, err := ioutil.TempDir("", "TestFileInfoHeaderSymlink") + tmpdir, err := os.MkdirTemp("", "TestFileInfoHeaderSymlink") if err != nil { t.Fatal(err) } diff --git a/src/archive/tar/writer_test.go b/src/archive/tar/writer_test.go index 30556d27d0..a00f02d8fa 100644 --- a/src/archive/tar/writer_test.go +++ b/src/archive/tar/writer_test.go @@ -9,7 +9,6 @@ import ( "encoding/hex" "errors" "io" - "io/ioutil" "os" "path" "reflect" @@ -520,7 +519,7 @@ func TestWriter(t *testing.T) { } if v.file != "" { - want, err := ioutil.ReadFile(v.file) + want, err := os.ReadFile(v.file) if err != nil { t.Fatalf("ReadFile() = %v, want nil", err) } diff --git a/src/archive/zip/reader_test.go b/src/archive/zip/reader_test.go index b7a7d7a757..34e96f7da4 100644 --- a/src/archive/zip/reader_test.go +++ b/src/archive/zip/reader_test.go @@ -11,7 +11,6 @@ import ( "internal/obscuretestdata" "io" "io/fs" - "io/ioutil" "os" "path/filepath" "regexp" @@ -629,7 +628,7 @@ func readTestFile(t *testing.T, zt ZipTest, ft ZipTestFile, f *File) { var c []byte if ft.Content != nil { c = ft.Content - } else if c, err = ioutil.ReadFile("testdata/" + ft.File); err != nil { + } else if c, err = os.ReadFile("testdata/" + ft.File); err != nil { t.Error(err) return } @@ -685,7 +684,7 @@ func TestInvalidFiles(t *testing.T) { } func messWith(fileName string, corrupter func(b []byte)) (r io.ReaderAt, size int64) { - data, err := ioutil.ReadFile(filepath.Join("testdata", fileName)) + data, err := os.ReadFile(filepath.Join("testdata", fileName)) if err != nil { panic("Error reading " + fileName + ": " + err.Error()) } @@ -792,17 +791,17 @@ func returnRecursiveZip() (r io.ReaderAt, size int64) { // // func main() { // bigZip := makeZip("big.file", io.LimitReader(zeros{}, 1<<32-1)) -// if err := ioutil.WriteFile("/tmp/big.zip", bigZip, 0666); err != nil { +// if err := os.WriteFile("/tmp/big.zip", bigZip, 0666); err != nil { // log.Fatal(err) // } // // biggerZip := makeZip("big.zip", bytes.NewReader(bigZip)) -// if err := ioutil.WriteFile("/tmp/bigger.zip", biggerZip, 0666); err != nil { +// if err := os.WriteFile("/tmp/bigger.zip", biggerZip, 0666); err != nil { // log.Fatal(err) // } // // biggestZip := makeZip("bigger.zip", bytes.NewReader(biggerZip)) -// if err := ioutil.WriteFile("/tmp/biggest.zip", biggestZip, 0666); err != nil { +// if err := os.WriteFile("/tmp/biggest.zip", biggestZip, 0666); err != nil { // log.Fatal(err) // } // } diff --git a/src/archive/zip/writer_test.go b/src/archive/zip/writer_test.go index 2c32eaf4a5..5985144e5c 100644 --- a/src/archive/zip/writer_test.go +++ b/src/archive/zip/writer_test.go @@ -10,8 +10,8 @@ import ( "fmt" "io" "io/fs" - "io/ioutil" "math/rand" + "os" "strings" "testing" "time" @@ -237,7 +237,7 @@ func TestWriterTime(t *testing.T) { t.Fatalf("unexpected Close error: %v", err) } - want, err := ioutil.ReadFile("testdata/time-go.zip") + want, err := os.ReadFile("testdata/time-go.zip") if err != nil { t.Fatalf("unexpected ReadFile error: %v", err) } diff --git a/src/cmd/addr2line/addr2line_test.go b/src/cmd/addr2line/addr2line_test.go index 7973aa2fe1..992d7ac11e 100644 --- a/src/cmd/addr2line/addr2line_test.go +++ b/src/cmd/addr2line/addr2line_test.go @@ -8,7 +8,6 @@ import ( "bufio" "bytes" "internal/testenv" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -98,8 +97,8 @@ func testAddr2Line(t *testing.T, exepath, addr string) { if !os.SameFile(fi1, fi2) { t.Fatalf("addr2line_test.go and %s are not same file", srcPath) } - if srcLineNo != "107" { - t.Fatalf("line number = %v; want 107", srcLineNo) + if srcLineNo != "106" { + t.Fatalf("line number = %v; want 106", srcLineNo) } } @@ -107,7 +106,7 @@ func testAddr2Line(t *testing.T, exepath, addr string) { func TestAddr2Line(t *testing.T) { testenv.MustHaveGoBuild(t) - tmpDir, err := ioutil.TempDir("", "TestAddr2Line") + tmpDir, err := os.MkdirTemp("", "TestAddr2Line") if err != nil { t.Fatal("TempDir failed: ", err) } diff --git a/src/cmd/api/goapi.go b/src/cmd/api/goapi.go index b14d57c236..ba42812fa6 100644 --- a/src/cmd/api/goapi.go +++ b/src/cmd/api/goapi.go @@ -17,7 +17,6 @@ import ( "go/token" "go/types" "io" - "io/ioutil" "log" "os" "os/exec" @@ -342,7 +341,7 @@ func fileFeatures(filename string) []string { if filename == "" { return nil } - bs, err := ioutil.ReadFile(filename) + bs, err := os.ReadFile(filename) if err != nil { log.Fatalf("Error reading file %s: %v", filename, err) } diff --git a/src/cmd/api/goapi_test.go b/src/cmd/api/goapi_test.go index 24620a94af..16e0058e5e 100644 --- a/src/cmd/api/goapi_test.go +++ b/src/cmd/api/goapi_test.go @@ -9,7 +9,6 @@ import ( "flag" "fmt" "go/build" - "io/ioutil" "os" "path/filepath" "sort" @@ -75,7 +74,7 @@ func TestGolden(t *testing.T) { f.Close() } - bs, err := ioutil.ReadFile(goldenFile) + bs, err := os.ReadFile(goldenFile) if err != nil { t.Fatalf("opening golden.txt for package %q: %v", fi.Name(), err) } diff --git a/src/cmd/cover/cover.go b/src/cmd/cover/cover.go index 360f9aeb06..7ee000861b 100644 --- a/src/cmd/cover/cover.go +++ b/src/cmd/cover/cover.go @@ -12,7 +12,6 @@ import ( "go/parser" "go/token" "io" - "io/ioutil" "log" "os" "sort" @@ -304,7 +303,7 @@ func (f *File) Visit(node ast.Node) ast.Visitor { func annotate(name string) { fset := token.NewFileSet() - content, err := ioutil.ReadFile(name) + content, err := os.ReadFile(name) if err != nil { log.Fatalf("cover: %s: %s", name, err) } diff --git a/src/cmd/cover/cover_test.go b/src/cmd/cover/cover_test.go index 1c252e6e45..86c95d15c5 100644 --- a/src/cmd/cover/cover_test.go +++ b/src/cmd/cover/cover_test.go @@ -13,7 +13,6 @@ import ( "go/parser" "go/token" "internal/testenv" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -81,7 +80,7 @@ var debug = flag.Bool("debug", false, "keep rewritten files for debugging") // We use TestMain to set up a temporary directory and remove it when // the tests are done. func TestMain(m *testing.M) { - dir, err := ioutil.TempDir("", "go-testcover") + dir, err := os.MkdirTemp("", "go-testcover") if err != nil { fmt.Fprintln(os.Stderr, err) os.Exit(1) @@ -173,7 +172,7 @@ func TestCover(t *testing.T) { buildCover(t) // Read in the test file (testTest) and write it, with LINEs specified, to coverInput. - file, err := ioutil.ReadFile(testTest) + file, err := os.ReadFile(testTest) if err != nil { t.Fatal(err) } @@ -192,7 +191,7 @@ func TestCover(t *testing.T) { []byte("}")) lines = append(lines, []byte("func unFormatted2(b bool) {if b{}else{}}")) - if err := ioutil.WriteFile(coverInput, bytes.Join(lines, []byte("\n")), 0666); err != nil { + if err := os.WriteFile(coverInput, bytes.Join(lines, []byte("\n")), 0666); err != nil { t.Fatal(err) } @@ -208,11 +207,11 @@ func TestCover(t *testing.T) { // Copy testmain to testTempDir, so that it is in the same directory // as coverOutput. - b, err := ioutil.ReadFile(testMain) + b, err := os.ReadFile(testMain) if err != nil { t.Fatal(err) } - if err := ioutil.WriteFile(tmpTestMain, b, 0444); err != nil { + if err := os.WriteFile(tmpTestMain, b, 0444); err != nil { t.Fatal(err) } @@ -220,7 +219,7 @@ func TestCover(t *testing.T) { cmd = exec.Command(testenv.GoToolPath(t), "run", tmpTestMain, coverOutput) run(cmd, t) - file, err = ioutil.ReadFile(coverOutput) + file, err = os.ReadFile(coverOutput) if err != nil { t.Fatal(err) } @@ -251,7 +250,7 @@ func TestDirectives(t *testing.T) { // Read the source file and find all the directives. We'll keep // track of whether each one has been seen in the output. testDirectives := filepath.Join(testdata, "directives.go") - source, err := ioutil.ReadFile(testDirectives) + source, err := os.ReadFile(testDirectives) if err != nil { t.Fatal(err) } @@ -398,7 +397,7 @@ func TestCoverHTML(t *testing.T) { // Extract the parts of the HTML with comment markers, // and compare against a golden file. - entireHTML, err := ioutil.ReadFile(htmlHTML) + entireHTML, err := os.ReadFile(htmlHTML) if err != nil { t.Fatal(err) } @@ -420,7 +419,7 @@ func TestCoverHTML(t *testing.T) { if scan.Err() != nil { t.Error(scan.Err()) } - golden, err := ioutil.ReadFile(htmlGolden) + golden, err := os.ReadFile(htmlGolden) if err != nil { t.Fatalf("reading golden file: %v", err) } @@ -457,7 +456,7 @@ func TestHtmlUnformatted(t *testing.T) { t.Fatal(err) } - if err := ioutil.WriteFile(filepath.Join(htmlUDir, "go.mod"), []byte("module htmlunformatted\n"), 0666); err != nil { + if err := os.WriteFile(filepath.Join(htmlUDir, "go.mod"), []byte("module htmlunformatted\n"), 0666); err != nil { t.Fatal(err) } @@ -474,10 +473,10 @@ lab: const htmlUTestContents = `package htmlunformatted` - if err := ioutil.WriteFile(htmlU, []byte(htmlUContents), 0444); err != nil { + if err := os.WriteFile(htmlU, []byte(htmlUContents), 0444); err != nil { t.Fatal(err) } - if err := ioutil.WriteFile(htmlUTest, []byte(htmlUTestContents), 0444); err != nil { + if err := os.WriteFile(htmlUTest, []byte(htmlUTestContents), 0444); err != nil { t.Fatal(err) } @@ -540,13 +539,13 @@ func TestFuncWithDuplicateLines(t *testing.T) { t.Fatal(err) } - if err := ioutil.WriteFile(filepath.Join(lineDupDir, "go.mod"), []byte("module linedup\n"), 0666); err != nil { + if err := os.WriteFile(filepath.Join(lineDupDir, "go.mod"), []byte("module linedup\n"), 0666); err != nil { t.Fatal(err) } - if err := ioutil.WriteFile(lineDupGo, []byte(lineDupContents), 0444); err != nil { + if err := os.WriteFile(lineDupGo, []byte(lineDupContents), 0444); err != nil { t.Fatal(err) } - if err := ioutil.WriteFile(lineDupTestGo, []byte(lineDupTestContents), 0444); err != nil { + if err := os.WriteFile(lineDupTestGo, []byte(lineDupTestContents), 0444); err != nil { t.Fatal(err) } diff --git a/src/cmd/cover/html.go b/src/cmd/cover/html.go index f76ea03cf5..b2865c427c 100644 --- a/src/cmd/cover/html.go +++ b/src/cmd/cover/html.go @@ -11,7 +11,6 @@ import ( "fmt" "html/template" "io" - "io/ioutil" "math" "os" "path/filepath" @@ -43,7 +42,7 @@ func htmlOutput(profile, outfile string) error { if err != nil { return err } - src, err := ioutil.ReadFile(file) + src, err := os.ReadFile(file) if err != nil { return fmt.Errorf("can't read %q: %v", fn, err) } @@ -62,7 +61,7 @@ func htmlOutput(profile, outfile string) error { var out *os.File if outfile == "" { var dir string - dir, err = ioutil.TempDir("", "cover") + dir, err = os.MkdirTemp("", "cover") if err != nil { return err } diff --git a/src/cmd/fix/main.go b/src/cmd/fix/main.go index 1cedf992cf..d055929aac 100644 --- a/src/cmd/fix/main.go +++ b/src/cmd/fix/main.go @@ -15,7 +15,6 @@ import ( "go/token" "io" "io/fs" - "io/ioutil" "os" "path/filepath" "sort" @@ -217,7 +216,7 @@ func processFile(filename string, useStdin bool) error { return nil } - return ioutil.WriteFile(f.Name(), newSrc, 0) + return os.WriteFile(f.Name(), newSrc, 0) } func gofmt(n interface{}) string { diff --git a/src/cmd/fix/typecheck.go b/src/cmd/fix/typecheck.go index f45155b06d..40b2287f26 100644 --- a/src/cmd/fix/typecheck.go +++ b/src/cmd/fix/typecheck.go @@ -9,7 +9,6 @@ import ( "go/ast" "go/parser" "go/token" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -162,12 +161,12 @@ func typecheck(cfg *TypeConfig, f *ast.File) (typeof map[interface{}]string, ass if err != nil { return err } - dir, err := ioutil.TempDir(os.TempDir(), "fix_cgo_typecheck") + dir, err := os.MkdirTemp(os.TempDir(), "fix_cgo_typecheck") if err != nil { return err } defer os.RemoveAll(dir) - err = ioutil.WriteFile(filepath.Join(dir, "in.go"), txt, 0600) + err = os.WriteFile(filepath.Join(dir, "in.go"), txt, 0600) if err != nil { return err } @@ -176,7 +175,7 @@ func typecheck(cfg *TypeConfig, f *ast.File) (typeof map[interface{}]string, ass if err != nil { return err } - out, err := ioutil.ReadFile(filepath.Join(dir, "_cgo_gotypes.go")) + out, err := os.ReadFile(filepath.Join(dir, "_cgo_gotypes.go")) if err != nil { return err } diff --git a/src/cmd/go/go_test.go b/src/cmd/go/go_test.go index 1b8a21ecfa..19764bfc60 100644 --- a/src/cmd/go/go_test.go +++ b/src/cmd/go/go_test.go @@ -17,7 +17,6 @@ import ( "internal/testenv" "io" "io/fs" - "io/ioutil" "log" "os" "os/exec" @@ -100,7 +99,7 @@ func TestMain(m *testing.M) { // Run with a temporary TMPDIR to check that the tests don't // leave anything behind. - topTmpdir, err := ioutil.TempDir("", "cmd-go-test-") + topTmpdir, err := os.MkdirTemp("", "cmd-go-test-") if err != nil { log.Fatal(err) } @@ -109,7 +108,7 @@ func TestMain(m *testing.M) { } os.Setenv(tempEnvName(), topTmpdir) - dir, err := ioutil.TempDir(topTmpdir, "tmpdir") + dir, err := os.MkdirTemp(topTmpdir, "tmpdir") if err != nil { log.Fatal(err) } @@ -616,7 +615,7 @@ func (tg *testgoData) makeTempdir() { tg.t.Helper() if tg.tempdir == "" { var err error - tg.tempdir, err = ioutil.TempDir("", "gotest") + tg.tempdir, err = os.MkdirTemp("", "gotest") tg.must(err) } } @@ -633,7 +632,7 @@ func (tg *testgoData) tempFile(path, contents string) { bytes = formatted } } - tg.must(ioutil.WriteFile(filepath.Join(tg.tempdir, path), bytes, 0644)) + tg.must(os.WriteFile(filepath.Join(tg.tempdir, path), bytes, 0644)) } // tempDir adds a temporary directory for a run of testgo. @@ -833,7 +832,7 @@ func TestNewReleaseRebuildsStalePackagesInGOPATH(t *testing.T) { return err } dest := filepath.Join("goroot", copydir, srcrel) - data, err := ioutil.ReadFile(path) + data, err := os.ReadFile(path) if err != nil { return err } @@ -850,18 +849,18 @@ func TestNewReleaseRebuildsStalePackagesInGOPATH(t *testing.T) { tg.setenv("GOROOT", tg.path("goroot")) addVar := func(name string, idx int) (restore func()) { - data, err := ioutil.ReadFile(name) + data, err := os.ReadFile(name) if err != nil { t.Fatal(err) } old := data data = append(data, fmt.Sprintf("var DummyUnusedVar%d bool\n", idx)...) - if err := ioutil.WriteFile(name, append(data, '\n'), 0666); err != nil { + if err := os.WriteFile(name, append(data, '\n'), 0666); err != nil { t.Fatal(err) } tg.sleep() return func() { - if err := ioutil.WriteFile(name, old, 0666); err != nil { + if err := os.WriteFile(name, old, 0666); err != nil { t.Fatal(err) } } @@ -2674,7 +2673,7 @@ echo $* >>`+tg.path("pkg-config.out")) tg.setenv("GOPATH", tg.path(".")) tg.setenv("PKG_CONFIG", tg.path("pkg-config.sh")) tg.run("build", "x") - out, err := ioutil.ReadFile(tg.path("pkg-config.out")) + out, err := os.ReadFile(tg.path("pkg-config.out")) tg.must(err) out = bytes.TrimSpace(out) want := "--cflags --static --static -- a a\n--libs --static --static -- a a" diff --git a/src/cmd/go/go_windows_test.go b/src/cmd/go/go_windows_test.go index 02634f19f5..3094212bae 100644 --- a/src/cmd/go/go_windows_test.go +++ b/src/cmd/go/go_windows_test.go @@ -5,7 +5,6 @@ package main_test import ( - "io/ioutil" "os" "os/exec" "path/filepath" @@ -20,14 +19,14 @@ func TestAbsolutePath(t *testing.T) { defer tg.cleanup() tg.parallel() - tmp, err := ioutil.TempDir("", "TestAbsolutePath") + tmp, err := os.MkdirTemp("", "TestAbsolutePath") if err != nil { t.Fatal(err) } defer robustio.RemoveAll(tmp) file := filepath.Join(tmp, "a.go") - err = ioutil.WriteFile(file, []byte{}, 0644) + err = os.WriteFile(file, []byte{}, 0644) if err != nil { t.Fatal(err) } diff --git a/src/cmd/go/help_test.go b/src/cmd/go/help_test.go index 78d63ff05e..abfc3db993 100644 --- a/src/cmd/go/help_test.go +++ b/src/cmd/go/help_test.go @@ -6,7 +6,7 @@ package main_test import ( "bytes" - "io/ioutil" + "os" "testing" "cmd/go/internal/help" @@ -23,7 +23,7 @@ func TestDocsUpToDate(t *testing.T) { buf := new(bytes.Buffer) // Match the command in mkalldocs.sh that generates alldocs.go. help.Help(buf, []string{"documentation"}) - data, err := ioutil.ReadFile("alldocs.go") + data, err := os.ReadFile("alldocs.go") if err != nil { t.Fatalf("error reading alldocs.go: %v", err) } diff --git a/src/cmd/go/internal/auth/netrc.go b/src/cmd/go/internal/auth/netrc.go index 7a9bdbb72c..0107f20d7a 100644 --- a/src/cmd/go/internal/auth/netrc.go +++ b/src/cmd/go/internal/auth/netrc.go @@ -5,7 +5,6 @@ package auth import ( - "io/ioutil" "os" "path/filepath" "runtime" @@ -99,7 +98,7 @@ func readNetrc() { return } - data, err := ioutil.ReadFile(path) + data, err := os.ReadFile(path) if err != nil { if !os.IsNotExist(err) { netrcErr = err diff --git a/src/cmd/go/internal/bug/bug.go b/src/cmd/go/internal/bug/bug.go index 07e3516855..1085feaaee 100644 --- a/src/cmd/go/internal/bug/bug.go +++ b/src/cmd/go/internal/bug/bug.go @@ -10,7 +10,6 @@ import ( "context" "fmt" "io" - "io/ioutil" urlpkg "net/url" "os" "os/exec" @@ -117,7 +116,7 @@ func printOSDetails(w io.Writer) { case "illumos", "solaris": // Be sure to use the OS-supplied uname, in "/usr/bin": printCmdOut(w, "uname -srv: ", "/usr/bin/uname", "-srv") - out, err := ioutil.ReadFile("/etc/release") + out, err := os.ReadFile("/etc/release") if err == nil { fmt.Fprintf(w, "/etc/release: %s\n", out) } else { @@ -177,7 +176,7 @@ func printGlibcVersion(w io.Writer) { src := []byte(`int main() {}`) srcfile := filepath.Join(tempdir, "go-bug.c") outfile := filepath.Join(tempdir, "go-bug") - err := ioutil.WriteFile(srcfile, src, 0644) + err := os.WriteFile(srcfile, src, 0644) if err != nil { return } diff --git a/src/cmd/go/internal/cache/cache.go b/src/cmd/go/internal/cache/cache.go index 5464fe5685..41f921641d 100644 --- a/src/cmd/go/internal/cache/cache.go +++ b/src/cmd/go/internal/cache/cache.go @@ -13,7 +13,6 @@ import ( "fmt" "io" "io/fs" - "io/ioutil" "os" "path/filepath" "strconv" @@ -239,7 +238,7 @@ func (c *Cache) GetBytes(id ActionID) ([]byte, Entry, error) { if err != nil { return nil, entry, err } - data, _ := ioutil.ReadFile(c.OutputFile(entry.OutputID)) + data, _ := os.ReadFile(c.OutputFile(entry.OutputID)) if sha256.Sum256(data) != entry.OutputID { return nil, entry, &entryNotFoundError{Err: errors.New("bad checksum")} } @@ -378,7 +377,7 @@ func (c *Cache) putIndexEntry(id ActionID, out OutputID, size int64, allowVerify // Truncate the file only *after* writing it. // (This should be a no-op, but truncate just in case of previous corruption.) // - // This differs from ioutil.WriteFile, which truncates to 0 *before* writing + // This differs from os.WriteFile, which truncates to 0 *before* writing // via os.O_TRUNC. Truncating only after writing ensures that a second write // of the same content to the same file is idempotent, and does not — even // temporarily! — undo the effect of the first write. diff --git a/src/cmd/go/internal/cache/cache_test.go b/src/cmd/go/internal/cache/cache_test.go index 1988c34502..a865b97018 100644 --- a/src/cmd/go/internal/cache/cache_test.go +++ b/src/cmd/go/internal/cache/cache_test.go @@ -8,7 +8,6 @@ import ( "bytes" "encoding/binary" "fmt" - "io/ioutil" "os" "path/filepath" "testing" @@ -20,7 +19,7 @@ func init() { } func TestBasic(t *testing.T) { - dir, err := ioutil.TempDir("", "cachetest-") + dir, err := os.MkdirTemp("", "cachetest-") if err != nil { t.Fatal(err) } @@ -65,7 +64,7 @@ func TestBasic(t *testing.T) { } func TestGrowth(t *testing.T) { - dir, err := ioutil.TempDir("", "cachetest-") + dir, err := os.MkdirTemp("", "cachetest-") if err != nil { t.Fatal(err) } @@ -118,7 +117,7 @@ func TestVerifyPanic(t *testing.T) { t.Fatal("initEnv did not set verify") } - dir, err := ioutil.TempDir("", "cachetest-") + dir, err := os.MkdirTemp("", "cachetest-") if err != nil { t.Fatal(err) } @@ -151,7 +150,7 @@ func dummyID(x int) [HashSize]byte { } func TestCacheTrim(t *testing.T) { - dir, err := ioutil.TempDir("", "cachetest-") + dir, err := os.MkdirTemp("", "cachetest-") if err != nil { t.Fatal(err) } @@ -207,7 +206,7 @@ func TestCacheTrim(t *testing.T) { t.Fatal(err) } c.OutputFile(entry.OutputID) - data, err := ioutil.ReadFile(filepath.Join(dir, "trim.txt")) + data, err := os.ReadFile(filepath.Join(dir, "trim.txt")) if err != nil { t.Fatal(err) } @@ -220,7 +219,7 @@ func TestCacheTrim(t *testing.T) { t.Fatal(err) } c.OutputFile(entry.OutputID) - data2, err := ioutil.ReadFile(filepath.Join(dir, "trim.txt")) + data2, err := os.ReadFile(filepath.Join(dir, "trim.txt")) if err != nil { t.Fatal(err) } diff --git a/src/cmd/go/internal/cache/default.go b/src/cmd/go/internal/cache/default.go index 9f8dd8af4b..0b1c1e0c20 100644 --- a/src/cmd/go/internal/cache/default.go +++ b/src/cmd/go/internal/cache/default.go @@ -6,7 +6,6 @@ package cache import ( "fmt" - "io/ioutil" "os" "path/filepath" "sync" @@ -49,7 +48,7 @@ func initDefaultCache() { } if _, err := os.Stat(filepath.Join(dir, "README")); err != nil { // Best effort. - ioutil.WriteFile(filepath.Join(dir, "README"), []byte(cacheREADME), 0666) + os.WriteFile(filepath.Join(dir, "README"), []byte(cacheREADME), 0666) } c, err := Open(dir) diff --git a/src/cmd/go/internal/cache/hash_test.go b/src/cmd/go/internal/cache/hash_test.go index 3bf7143039..a0356771ca 100644 --- a/src/cmd/go/internal/cache/hash_test.go +++ b/src/cmd/go/internal/cache/hash_test.go @@ -6,7 +6,6 @@ package cache import ( "fmt" - "io/ioutil" "os" "testing" ) @@ -28,7 +27,7 @@ func TestHash(t *testing.T) { } func TestHashFile(t *testing.T) { - f, err := ioutil.TempFile("", "cmd-go-test-") + f, err := os.CreateTemp("", "cmd-go-test-") if err != nil { t.Fatal(err) } diff --git a/src/cmd/go/internal/cfg/cfg.go b/src/cmd/go/internal/cfg/cfg.go index 9bc48132ae..c48904eacc 100644 --- a/src/cmd/go/internal/cfg/cfg.go +++ b/src/cmd/go/internal/cfg/cfg.go @@ -12,7 +12,6 @@ import ( "go/build" "internal/cfg" "io" - "io/ioutil" "os" "path/filepath" "runtime" @@ -187,7 +186,7 @@ func initEnvCache() { if file == "" { return } - data, err := ioutil.ReadFile(file) + data, err := os.ReadFile(file) if err != nil { return } diff --git a/src/cmd/go/internal/envcmd/env.go b/src/cmd/go/internal/envcmd/env.go index 46af36eb11..6937187522 100644 --- a/src/cmd/go/internal/envcmd/env.go +++ b/src/cmd/go/internal/envcmd/env.go @@ -10,7 +10,6 @@ import ( "encoding/json" "fmt" "go/build" - "io/ioutil" "os" "path/filepath" "runtime" @@ -452,7 +451,7 @@ func updateEnvFile(add map[string]string, del map[string]bool) { if file == "" { base.Fatalf("go env: cannot find go env config: %v", err) } - data, err := ioutil.ReadFile(file) + data, err := os.ReadFile(file) if err != nil && (!os.IsNotExist(err) || len(add) == 0) { base.Fatalf("go env: reading go env config: %v", err) } @@ -506,11 +505,11 @@ func updateEnvFile(add map[string]string, del map[string]bool) { } data = []byte(strings.Join(lines, "")) - err = ioutil.WriteFile(file, data, 0666) + err = os.WriteFile(file, data, 0666) if err != nil { // Try creating directory. os.MkdirAll(filepath.Dir(file), 0777) - err = ioutil.WriteFile(file, data, 0666) + err = os.WriteFile(file, data, 0666) if err != nil { base.Fatalf("go env: writing go env config: %v", err) } diff --git a/src/cmd/go/internal/fsys/fsys.go b/src/cmd/go/internal/fsys/fsys.go index 0264786e5b..7b06c3c7f3 100644 --- a/src/cmd/go/internal/fsys/fsys.go +++ b/src/cmd/go/internal/fsys/fsys.go @@ -86,7 +86,7 @@ func Init(wd string) error { return nil } - b, err := ioutil.ReadFile(OverlayFile) + b, err := os.ReadFile(OverlayFile) if err != nil { return fmt.Errorf("reading overlay file: %v", err) } diff --git a/src/cmd/go/internal/fsys/fsys_test.go b/src/cmd/go/internal/fsys/fsys_test.go index 90a69de14a..7f175c7031 100644 --- a/src/cmd/go/internal/fsys/fsys_test.go +++ b/src/cmd/go/internal/fsys/fsys_test.go @@ -8,7 +8,6 @@ import ( "internal/testenv" "io" "io/fs" - "io/ioutil" "os" "path/filepath" "reflect" @@ -47,7 +46,7 @@ func initOverlay(t *testing.T, config string) { if err := os.MkdirAll(filepath.Dir(name), 0777); err != nil { t.Fatal(err) } - if err := ioutil.WriteFile(name, f.Data, 0666); err != nil { + if err := os.WriteFile(name, f.Data, 0666); err != nil { t.Fatal(err) } } diff --git a/src/cmd/go/internal/generate/generate.go b/src/cmd/go/internal/generate/generate.go index 98c17bba8c..c7401948b8 100644 --- a/src/cmd/go/internal/generate/generate.go +++ b/src/cmd/go/internal/generate/generate.go @@ -13,7 +13,6 @@ import ( "go/parser" "go/token" "io" - "io/ioutil" "log" "os" "os/exec" @@ -201,7 +200,7 @@ func runGenerate(ctx context.Context, cmd *base.Command, args []string) { // generate runs the generation directives for a single file. func generate(absFile string) bool { - src, err := ioutil.ReadFile(absFile) + src, err := os.ReadFile(absFile) if err != nil { log.Fatalf("generate: %s", err) } diff --git a/src/cmd/go/internal/imports/scan_test.go b/src/cmd/go/internal/imports/scan_test.go index e424656cae..5ba3201968 100644 --- a/src/cmd/go/internal/imports/scan_test.go +++ b/src/cmd/go/internal/imports/scan_test.go @@ -8,6 +8,7 @@ import ( "bytes" "internal/testenv" "io/ioutil" + "os" "path" "path/filepath" "runtime" @@ -66,7 +67,7 @@ func TestScanDir(t *testing.T) { continue } t.Run(dir.Name(), func(t *testing.T) { - tagsData, err := ioutil.ReadFile(filepath.Join("testdata", dir.Name(), "tags.txt")) + tagsData, err := os.ReadFile(filepath.Join("testdata", dir.Name(), "tags.txt")) if err != nil { t.Fatalf("error reading tags: %v", err) } @@ -75,7 +76,7 @@ func TestScanDir(t *testing.T) { tags[t] = true } - wantData, err := ioutil.ReadFile(filepath.Join("testdata", dir.Name(), "want.txt")) + wantData, err := os.ReadFile(filepath.Join("testdata", dir.Name(), "want.txt")) if err != nil { t.Fatalf("error reading want: %v", err) } diff --git a/src/cmd/go/internal/load/pkg.go b/src/cmd/go/internal/load/pkg.go index cbc683da2b..da3e0b895c 100644 --- a/src/cmd/go/internal/load/pkg.go +++ b/src/cmd/go/internal/load/pkg.go @@ -1147,7 +1147,7 @@ var ( // goModPath returns the module path in the go.mod in dir, if any. func goModPath(dir string) (path string) { return goModPathCache.Do(dir, func() interface{} { - data, err := ioutil.ReadFile(filepath.Join(dir, "go.mod")) + data, err := os.ReadFile(filepath.Join(dir, "go.mod")) if err != nil { return "" } @@ -1728,7 +1728,7 @@ func (p *Package) load(ctx context.Context, path string, stk *ImportStack, impor // not work for any package that lacks a Target — such as a non-main // package in module mode. We should probably fix that. shlibnamefile := p.Target[:len(p.Target)-2] + ".shlibname" - shlib, err := ioutil.ReadFile(shlibnamefile) + shlib, err := os.ReadFile(shlibnamefile) if err != nil && !os.IsNotExist(err) { base.Fatalf("reading shlibname: %v", err) } diff --git a/src/cmd/go/internal/lockedfile/internal/filelock/filelock_test.go b/src/cmd/go/internal/lockedfile/internal/filelock/filelock_test.go index 8301fb6b6e..2ac2052b8f 100644 --- a/src/cmd/go/internal/lockedfile/internal/filelock/filelock_test.go +++ b/src/cmd/go/internal/lockedfile/internal/filelock/filelock_test.go @@ -9,7 +9,6 @@ package filelock_test import ( "fmt" "internal/testenv" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -51,9 +50,9 @@ func mustTempFile(t *testing.T) (f *os.File, remove func()) { t.Helper() base := filepath.Base(t.Name()) - f, err := ioutil.TempFile("", base) + f, err := os.CreateTemp("", base) if err != nil { - t.Fatalf(`ioutil.TempFile("", %q) = %v`, base, err) + t.Fatalf(`os.CreateTemp("", %q) = %v`, base, err) } t.Logf("fd %d = %s", f.Fd(), f.Name()) diff --git a/src/cmd/go/internal/lockedfile/lockedfile_test.go b/src/cmd/go/internal/lockedfile/lockedfile_test.go index 416c69d83b..34327dd841 100644 --- a/src/cmd/go/internal/lockedfile/lockedfile_test.go +++ b/src/cmd/go/internal/lockedfile/lockedfile_test.go @@ -10,7 +10,6 @@ package lockedfile_test import ( "fmt" "internal/testenv" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -23,7 +22,7 @@ import ( func mustTempDir(t *testing.T) (dir string, remove func()) { t.Helper() - dir, err := ioutil.TempDir("", filepath.Base(t.Name())) + dir, err := os.MkdirTemp("", filepath.Base(t.Name())) if err != nil { t.Fatal(err) } @@ -155,8 +154,8 @@ func TestCanLockExistingFile(t *testing.T) { defer remove() path := filepath.Join(dir, "existing.txt") - if err := ioutil.WriteFile(path, []byte("ok"), 0777); err != nil { - t.Fatalf("ioutil.WriteFile: %v", err) + if err := os.WriteFile(path, []byte("ok"), 0777); err != nil { + t.Fatalf("os.WriteFile: %v", err) } f, err := lockedfile.Edit(path) @@ -201,7 +200,7 @@ func TestSpuriousEDEADLK(t *testing.T) { } defer b.Close() - if err := ioutil.WriteFile(filepath.Join(dir, "locked"), []byte("ok"), 0666); err != nil { + if err := os.WriteFile(filepath.Join(dir, "locked"), []byte("ok"), 0666); err != nil { t.Fatal(err) } diff --git a/src/cmd/go/internal/modcmd/vendor.go b/src/cmd/go/internal/modcmd/vendor.go index 38c473d36b..390a195547 100644 --- a/src/cmd/go/internal/modcmd/vendor.go +++ b/src/cmd/go/internal/modcmd/vendor.go @@ -155,7 +155,7 @@ func runVendor(ctx context.Context, cmd *base.Command, args []string) { base.Fatalf("go mod vendor: %v", err) } - if err := ioutil.WriteFile(filepath.Join(vdir, "modules.txt"), buf.Bytes(), 0666); err != nil { + if err := os.WriteFile(filepath.Join(vdir, "modules.txt"), buf.Bytes(), 0666); err != nil { base.Fatalf("go mod vendor: %v", err) } } diff --git a/src/cmd/go/internal/modcmd/verify.go b/src/cmd/go/internal/modcmd/verify.go index ce24793929..c83e70076a 100644 --- a/src/cmd/go/internal/modcmd/verify.go +++ b/src/cmd/go/internal/modcmd/verify.go @@ -10,7 +10,6 @@ import ( "errors" "fmt" "io/fs" - "io/ioutil" "os" "runtime" @@ -87,7 +86,7 @@ func verifyMod(mod module.Version) []error { _, zipErr = os.Stat(zip) } dir, dirErr := modfetch.DownloadDir(mod) - data, err := ioutil.ReadFile(zip + "hash") + data, err := os.ReadFile(zip + "hash") if err != nil { if zipErr != nil && errors.Is(zipErr, fs.ErrNotExist) && dirErr != nil && errors.Is(dirErr, fs.ErrNotExist) { diff --git a/src/cmd/go/internal/modconv/convert_test.go b/src/cmd/go/internal/modconv/convert_test.go index faa2b4c606..66b9ff4f38 100644 --- a/src/cmd/go/internal/modconv/convert_test.go +++ b/src/cmd/go/internal/modconv/convert_test.go @@ -9,7 +9,6 @@ import ( "context" "fmt" "internal/testenv" - "io/ioutil" "log" "os" "os/exec" @@ -37,7 +36,7 @@ func testMain(m *testing.M) int { return 0 } - dir, err := ioutil.TempDir("", "modconv-test-") + dir, err := os.MkdirTemp("", "modconv-test-") if err != nil { log.Fatal(err) } @@ -167,7 +166,7 @@ func TestConvertLegacyConfig(t *testing.T) { for name := range Converters { file := filepath.Join(dir, name) - data, err := ioutil.ReadFile(file) + data, err := os.ReadFile(file) if err == nil { f := new(modfile.File) f.AddModuleStmt(tt.path) diff --git a/src/cmd/go/internal/modconv/modconv_test.go b/src/cmd/go/internal/modconv/modconv_test.go index ccc4f3d576..750525d404 100644 --- a/src/cmd/go/internal/modconv/modconv_test.go +++ b/src/cmd/go/internal/modconv/modconv_test.go @@ -7,7 +7,7 @@ package modconv import ( "bytes" "fmt" - "io/ioutil" + "os" "path/filepath" "testing" ) @@ -42,7 +42,7 @@ func Test(t *testing.T) { if Converters[extMap[ext]] == nil { t.Fatalf("Converters[%q] == nil", extMap[ext]) } - data, err := ioutil.ReadFile(test) + data, err := os.ReadFile(test) if err != nil { t.Fatal(err) } @@ -50,7 +50,7 @@ func Test(t *testing.T) { if err != nil { t.Fatal(err) } - want, err := ioutil.ReadFile(test[:len(test)-len(ext)] + ".out") + want, err := os.ReadFile(test[:len(test)-len(ext)] + ".out") if err != nil { t.Error(err) } diff --git a/src/cmd/go/internal/modfetch/cache_test.go b/src/cmd/go/internal/modfetch/cache_test.go index 241c800e69..722c984e37 100644 --- a/src/cmd/go/internal/modfetch/cache_test.go +++ b/src/cmd/go/internal/modfetch/cache_test.go @@ -5,14 +5,13 @@ package modfetch import ( - "io/ioutil" "os" "path/filepath" "testing" ) func TestWriteDiskCache(t *testing.T) { - tmpdir, err := ioutil.TempDir("", "go-writeCache-test-") + tmpdir, err := os.MkdirTemp("", "go-writeCache-test-") if err != nil { t.Fatal(err) } diff --git a/src/cmd/go/internal/modfetch/codehost/codehost.go b/src/cmd/go/internal/modfetch/codehost/codehost.go index 286d3f7220..86c1c14d4a 100644 --- a/src/cmd/go/internal/modfetch/codehost/codehost.go +++ b/src/cmd/go/internal/modfetch/codehost/codehost.go @@ -12,7 +12,6 @@ import ( "fmt" "io" "io/fs" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -189,7 +188,7 @@ func WorkDir(typ, name string) (dir, lockfile string, err error) { } defer unlock() - data, err := ioutil.ReadFile(dir + ".info") + data, err := os.ReadFile(dir + ".info") info, err2 := os.Stat(dir) if err == nil && err2 == nil && info.IsDir() { // Info file and directory both already exist: reuse. @@ -211,7 +210,7 @@ func WorkDir(typ, name string) (dir, lockfile string, err error) { if err := os.MkdirAll(dir, 0777); err != nil { return "", "", err } - if err := ioutil.WriteFile(dir+".info", []byte(key), 0666); err != nil { + if err := os.WriteFile(dir+".info", []byte(key), 0666); err != nil { os.RemoveAll(dir) return "", "", err } diff --git a/src/cmd/go/internal/modfetch/codehost/git_test.go b/src/cmd/go/internal/modfetch/codehost/git_test.go index 981e3fe91f..89a73baad9 100644 --- a/src/cmd/go/internal/modfetch/codehost/git_test.go +++ b/src/cmd/go/internal/modfetch/codehost/git_test.go @@ -12,7 +12,6 @@ import ( "internal/testenv" "io" "io/fs" - "io/ioutil" "log" "os" "os/exec" @@ -54,7 +53,7 @@ func testMain(m *testing.M) int { return 0 } - dir, err := ioutil.TempDir("", "gitrepo-test-") + dir, err := os.MkdirTemp("", "gitrepo-test-") if err != nil { log.Fatal(err) } diff --git a/src/cmd/go/internal/modfetch/codehost/shell.go b/src/cmd/go/internal/modfetch/codehost/shell.go index b9525adf5e..ce8b501d53 100644 --- a/src/cmd/go/internal/modfetch/codehost/shell.go +++ b/src/cmd/go/internal/modfetch/codehost/shell.go @@ -15,7 +15,6 @@ import ( "flag" "fmt" "io" - "io/ioutil" "log" "os" "strings" @@ -124,7 +123,7 @@ func main() { } if f[3] != "-" { - if err := ioutil.WriteFile(f[3], data, 0666); err != nil { + if err := os.WriteFile(f[3], data, 0666); err != nil { fmt.Fprintf(os.Stderr, "?%s\n", err) continue } diff --git a/src/cmd/go/internal/modfetch/codehost/vcs.go b/src/cmd/go/internal/modfetch/codehost/vcs.go index e67ee94ad8..c2cca084e3 100644 --- a/src/cmd/go/internal/modfetch/codehost/vcs.go +++ b/src/cmd/go/internal/modfetch/codehost/vcs.go @@ -10,7 +10,6 @@ import ( "internal/lazyregexp" "io" "io/fs" - "io/ioutil" "os" "path/filepath" "sort" @@ -433,7 +432,7 @@ func (r *vcsRepo) ReadZip(rev, subdir string, maxSize int64) (zip io.ReadCloser, if rev == "latest" { rev = r.cmd.latest } - f, err := ioutil.TempFile("", "go-readzip-*.zip") + f, err := os.CreateTemp("", "go-readzip-*.zip") if err != nil { return nil, err } diff --git a/src/cmd/go/internal/modfetch/coderepo.go b/src/cmd/go/internal/modfetch/coderepo.go index b6bcf83f1a..2dcbb99b18 100644 --- a/src/cmd/go/internal/modfetch/coderepo.go +++ b/src/cmd/go/internal/modfetch/coderepo.go @@ -11,7 +11,6 @@ import ( "fmt" "io" "io/fs" - "io/ioutil" "os" "path" "sort" @@ -966,7 +965,7 @@ func (r *codeRepo) Zip(dst io.Writer, version string) error { subdir = strings.Trim(subdir, "/") // Spool to local file. - f, err := ioutil.TempFile("", "go-codehost-") + f, err := os.CreateTemp("", "go-codehost-") if err != nil { dl.Close() return err diff --git a/src/cmd/go/internal/modfetch/coderepo_test.go b/src/cmd/go/internal/modfetch/coderepo_test.go index 53b048dbdf..02e399f352 100644 --- a/src/cmd/go/internal/modfetch/coderepo_test.go +++ b/src/cmd/go/internal/modfetch/coderepo_test.go @@ -11,7 +11,6 @@ import ( "hash" "internal/testenv" "io" - "io/ioutil" "log" "os" "reflect" @@ -38,7 +37,7 @@ func testMain(m *testing.M) int { // code, bypass the sum database. cfg.GOSUMDB = "off" - dir, err := ioutil.TempDir("", "gitrepo-test-") + dir, err := os.MkdirTemp("", "gitrepo-test-") if err != nil { log.Fatal(err) } @@ -424,7 +423,7 @@ var codeRepoTests = []codeRepoTest{ func TestCodeRepo(t *testing.T) { testenv.MustHaveExternalNetwork(t) - tmpdir, err := ioutil.TempDir("", "modfetch-test-") + tmpdir, err := os.MkdirTemp("", "modfetch-test-") if err != nil { t.Fatal(err) } @@ -491,9 +490,9 @@ func TestCodeRepo(t *testing.T) { needHash := !testing.Short() && (tt.zipFileHash != "" || tt.zipSum != "") if tt.zip != nil || tt.zipErr != "" || needHash { - f, err := ioutil.TempFile(tmpdir, tt.version+".zip.") + f, err := os.CreateTemp(tmpdir, tt.version+".zip.") if err != nil { - t.Fatalf("ioutil.TempFile: %v", err) + t.Fatalf("os.CreateTemp: %v", err) } zipfile := f.Name() defer func() { @@ -655,7 +654,7 @@ var codeRepoVersionsTests = []struct { func TestCodeRepoVersions(t *testing.T) { testenv.MustHaveExternalNetwork(t) - tmpdir, err := ioutil.TempDir("", "vgo-modfetch-test-") + tmpdir, err := os.MkdirTemp("", "vgo-modfetch-test-") if err != nil { t.Fatal(err) } @@ -729,7 +728,7 @@ var latestTests = []struct { func TestLatest(t *testing.T) { testenv.MustHaveExternalNetwork(t) - tmpdir, err := ioutil.TempDir("", "vgo-modfetch-test-") + tmpdir, err := os.MkdirTemp("", "vgo-modfetch-test-") if err != nil { t.Fatal(err) } diff --git a/src/cmd/go/internal/modfetch/fetch.go b/src/cmd/go/internal/modfetch/fetch.go index 2ee78de5b2..debeb3f319 100644 --- a/src/cmd/go/internal/modfetch/fetch.go +++ b/src/cmd/go/internal/modfetch/fetch.go @@ -12,7 +12,6 @@ import ( "fmt" "io" "io/fs" - "io/ioutil" "os" "path/filepath" "sort" @@ -136,7 +135,7 @@ func download(ctx context.Context, mod module.Version) (dir string, err error) { if err := os.MkdirAll(parentDir, 0777); err != nil { return "", err } - if err := ioutil.WriteFile(partialPath, nil, 0666); err != nil { + if err := os.WriteFile(partialPath, nil, 0666); err != nil { return "", err } if err := modzip.Unzip(dir, mod, zipfile); err != nil { @@ -223,7 +222,7 @@ func downloadZip(ctx context.Context, mod module.Version, zipfile string) (err e // contents of the file (by hashing it) before we commit it. Because the file // is zip-compressed, we need an actual file — or at least an io.ReaderAt — to // validate it: we can't just tee the stream as we write it. - f, err := ioutil.TempFile(filepath.Dir(zipfile), filepath.Base(renameio.Pattern(zipfile))) + f, err := os.CreateTemp(filepath.Dir(zipfile), filepath.Base(renameio.Pattern(zipfile))) if err != nil { return err } diff --git a/src/cmd/go/internal/modfetch/zip_sum_test/zip_sum_test.go b/src/cmd/go/internal/modfetch/zip_sum_test/zip_sum_test.go index 82398ebfed..d9ba8ef2da 100644 --- a/src/cmd/go/internal/modfetch/zip_sum_test/zip_sum_test.go +++ b/src/cmd/go/internal/modfetch/zip_sum_test/zip_sum_test.go @@ -24,7 +24,6 @@ import ( "fmt" "internal/testenv" "io" - "io/ioutil" "os" "path/filepath" "strings" @@ -81,7 +80,7 @@ func TestZipSums(t *testing.T) { if *modCacheDir != "" { cfg.BuildContext.GOPATH = *modCacheDir } else { - tmpDir, err := ioutil.TempDir("", "TestZipSums") + tmpDir, err := os.MkdirTemp("", "TestZipSums") if err != nil { t.Fatal(err) } diff --git a/src/cmd/go/internal/modload/init.go b/src/cmd/go/internal/modload/init.go index 1c31a5f90a..6a2cea668d 100644 --- a/src/cmd/go/internal/modload/init.go +++ b/src/cmd/go/internal/modload/init.go @@ -632,7 +632,7 @@ func setDefaultBuildMod() { func convertLegacyConfig(modPath string) (from string, err error) { for _, name := range altConfigs { cfg := filepath.Join(modRoot, name) - data, err := ioutil.ReadFile(cfg) + data, err := os.ReadFile(cfg) if err == nil { convert := modconv.Converters[name] if convert == nil { @@ -753,7 +753,7 @@ func findModulePath(dir string) (string, error) { } // Look for Godeps.json declaring import path. - data, _ := ioutil.ReadFile(filepath.Join(dir, "Godeps/Godeps.json")) + data, _ := os.ReadFile(filepath.Join(dir, "Godeps/Godeps.json")) var cfg1 struct{ ImportPath string } json.Unmarshal(data, &cfg1) if cfg1.ImportPath != "" { @@ -761,7 +761,7 @@ func findModulePath(dir string) (string, error) { } // Look for vendor.json declaring import path. - data, _ = ioutil.ReadFile(filepath.Join(dir, "vendor/vendor.json")) + data, _ = os.ReadFile(filepath.Join(dir, "vendor/vendor.json")) var cfg2 struct{ RootPath string } json.Unmarshal(data, &cfg2) if cfg2.RootPath != "" { @@ -813,7 +813,7 @@ var ( ) func findImportComment(file string) string { - data, err := ioutil.ReadFile(file) + data, err := os.ReadFile(file) if err != nil { return "" } diff --git a/src/cmd/go/internal/modload/query_test.go b/src/cmd/go/internal/modload/query_test.go index 777a56b977..e225a0e71e 100644 --- a/src/cmd/go/internal/modload/query_test.go +++ b/src/cmd/go/internal/modload/query_test.go @@ -7,7 +7,6 @@ package modload import ( "context" "internal/testenv" - "io/ioutil" "log" "os" "path" @@ -27,7 +26,7 @@ func TestMain(m *testing.M) { func testMain(m *testing.M) int { cfg.GOPROXY = "direct" - dir, err := ioutil.TempDir("", "modload-test-") + dir, err := os.MkdirTemp("", "modload-test-") if err != nil { log.Fatal(err) } diff --git a/src/cmd/go/internal/modload/vendor.go b/src/cmd/go/internal/modload/vendor.go index ab29d4d014..80d49053c6 100644 --- a/src/cmd/go/internal/modload/vendor.go +++ b/src/cmd/go/internal/modload/vendor.go @@ -8,7 +8,7 @@ import ( "errors" "fmt" "io/fs" - "io/ioutil" + "os" "path/filepath" "strings" "sync" @@ -40,7 +40,7 @@ func readVendorList() { vendorPkgModule = make(map[string]module.Version) vendorVersion = make(map[string]string) vendorMeta = make(map[module.Version]vendorMetadata) - data, err := ioutil.ReadFile(filepath.Join(ModRoot(), "vendor/modules.txt")) + data, err := os.ReadFile(filepath.Join(ModRoot(), "vendor/modules.txt")) if err != nil { if !errors.Is(err, fs.ErrNotExist) { base.Fatalf("go: %s", err) diff --git a/src/cmd/go/internal/renameio/renameio.go b/src/cmd/go/internal/renameio/renameio.go index 60a7138a76..9788171d6e 100644 --- a/src/cmd/go/internal/renameio/renameio.go +++ b/src/cmd/go/internal/renameio/renameio.go @@ -25,7 +25,7 @@ func Pattern(filename string) string { return filepath.Join(filepath.Dir(filename), filepath.Base(filename)+patternSuffix) } -// WriteFile is like ioutil.WriteFile, but first writes data to an arbitrary +// WriteFile is like os.WriteFile, but first writes data to an arbitrary // file in the same directory as filename, then renames it atomically to the // final name. // @@ -67,7 +67,7 @@ func WriteToFile(filename string, data io.Reader, perm fs.FileMode) (err error) return robustio.Rename(f.Name(), filename) } -// ReadFile is like ioutil.ReadFile, but on Windows retries spurious errors that +// ReadFile is like os.ReadFile, but on Windows retries spurious errors that // may occur if the file is concurrently replaced. // // Errors are classified heuristically and retries are bounded, so even this diff --git a/src/cmd/go/internal/renameio/renameio_test.go b/src/cmd/go/internal/renameio/renameio_test.go index e6d2025a0e..5b2ed83624 100644 --- a/src/cmd/go/internal/renameio/renameio_test.go +++ b/src/cmd/go/internal/renameio/renameio_test.go @@ -10,7 +10,6 @@ import ( "encoding/binary" "errors" "internal/testenv" - "io/ioutil" "math/rand" "os" "path/filepath" @@ -30,7 +29,7 @@ func TestConcurrentReadsAndWrites(t *testing.T) { testenv.SkipFlaky(t, 33041) } - dir, err := ioutil.TempDir("", "renameio") + dir, err := os.MkdirTemp("", "renameio") if err != nil { t.Fatal(err) } diff --git a/src/cmd/go/internal/renameio/umask_test.go b/src/cmd/go/internal/renameio/umask_test.go index 19e217c548..65e4fa587b 100644 --- a/src/cmd/go/internal/renameio/umask_test.go +++ b/src/cmd/go/internal/renameio/umask_test.go @@ -8,7 +8,6 @@ package renameio import ( "io/fs" - "io/ioutil" "os" "path/filepath" "syscall" @@ -16,7 +15,7 @@ import ( ) func TestWriteFileModeAppliesUmask(t *testing.T) { - dir, err := ioutil.TempDir("", "renameio") + dir, err := os.MkdirTemp("", "renameio") if err != nil { t.Fatalf("Failed to create temporary directory: %v", err) } diff --git a/src/cmd/go/internal/robustio/robustio.go b/src/cmd/go/internal/robustio/robustio.go index 76e47ad1ff..ce3dbbde6d 100644 --- a/src/cmd/go/internal/robustio/robustio.go +++ b/src/cmd/go/internal/robustio/robustio.go @@ -22,7 +22,7 @@ func Rename(oldpath, newpath string) error { return rename(oldpath, newpath) } -// ReadFile is like ioutil.ReadFile, but on Windows retries errors that may +// ReadFile is like os.ReadFile, but on Windows retries errors that may // occur if the file is concurrently replaced. // // (See golang.org/issue/31247 and golang.org/issue/32188.) diff --git a/src/cmd/go/internal/robustio/robustio_flaky.go b/src/cmd/go/internal/robustio/robustio_flaky.go index d4cb7e6457..5bd44bd345 100644 --- a/src/cmd/go/internal/robustio/robustio_flaky.go +++ b/src/cmd/go/internal/robustio/robustio_flaky.go @@ -8,7 +8,6 @@ package robustio import ( "errors" - "io/ioutil" "math/rand" "os" "syscall" @@ -70,11 +69,11 @@ func rename(oldpath, newpath string) (err error) { }) } -// readFile is like ioutil.ReadFile, but retries ephemeral errors. +// readFile is like os.ReadFile, but retries ephemeral errors. func readFile(filename string) ([]byte, error) { var b []byte err := retry(func() (err error, mayRetry bool) { - b, err = ioutil.ReadFile(filename) + b, err = os.ReadFile(filename) // Unlike in rename, we do not retry errFileNotFound here: it can occur // as a spurious error, but the file may also genuinely not exist, so the diff --git a/src/cmd/go/internal/robustio/robustio_other.go b/src/cmd/go/internal/robustio/robustio_other.go index 907b556858..6fe7b7e4e4 100644 --- a/src/cmd/go/internal/robustio/robustio_other.go +++ b/src/cmd/go/internal/robustio/robustio_other.go @@ -7,7 +7,6 @@ package robustio import ( - "io/ioutil" "os" ) @@ -16,7 +15,7 @@ func rename(oldpath, newpath string) error { } func readFile(filename string) ([]byte, error) { - return ioutil.ReadFile(filename) + return os.ReadFile(filename) } func removeAll(path string) error { diff --git a/src/cmd/go/internal/test/test.go b/src/cmd/go/internal/test/test.go index 24601dc061..401b67c260 100644 --- a/src/cmd/go/internal/test/test.go +++ b/src/cmd/go/internal/test/test.go @@ -884,7 +884,7 @@ func builderTest(b *work.Builder, ctx context.Context, p *load.Package) (buildAc if !cfg.BuildN { // writeTestmain writes _testmain.go, // using the test description gathered in t. - if err := ioutil.WriteFile(testDir+"_testmain.go", *pmain.Internal.TestmainGo, 0666); err != nil { + if err := os.WriteFile(testDir+"_testmain.go", *pmain.Internal.TestmainGo, 0666); err != nil { return nil, nil, nil, err } } @@ -1616,7 +1616,7 @@ func (c *runCache) saveOutput(a *work.Action) { } // See comment about two-level lookup in tryCacheWithID above. - testlog, err := ioutil.ReadFile(a.Objdir + "testlog.txt") + testlog, err := os.ReadFile(a.Objdir + "testlog.txt") if err != nil || !bytes.HasPrefix(testlog, testlogMagic) || testlog[len(testlog)-1] != '\n' { if cache.DebugTest { if err != nil { diff --git a/src/cmd/go/internal/txtar/archive.go b/src/cmd/go/internal/txtar/archive.go index c384f33bdf..1796684877 100644 --- a/src/cmd/go/internal/txtar/archive.go +++ b/src/cmd/go/internal/txtar/archive.go @@ -34,7 +34,7 @@ package txtar import ( "bytes" "fmt" - "io/ioutil" + "os" "strings" ) @@ -66,7 +66,7 @@ func Format(a *Archive) []byte { // ParseFile parses the named file as an archive. func ParseFile(file string) (*Archive, error) { - data, err := ioutil.ReadFile(file) + data, err := os.ReadFile(file) if err != nil { return nil, err } diff --git a/src/cmd/go/internal/vcs/vcs_test.go b/src/cmd/go/internal/vcs/vcs_test.go index 72d74a01e3..c5c7a3283b 100644 --- a/src/cmd/go/internal/vcs/vcs_test.go +++ b/src/cmd/go/internal/vcs/vcs_test.go @@ -7,7 +7,6 @@ package vcs import ( "errors" "internal/testenv" - "io/ioutil" "os" "path" "path/filepath" @@ -208,7 +207,7 @@ func TestRepoRootForImportPath(t *testing.T) { // Test that vcsFromDir correctly inspects a given directory and returns the right VCS and root. func TestFromDir(t *testing.T) { - tempDir, err := ioutil.TempDir("", "vcstest") + tempDir, err := os.MkdirTemp("", "vcstest") if err != nil { t.Fatal(err) } diff --git a/src/cmd/go/internal/web/file_test.go b/src/cmd/go/internal/web/file_test.go index a1bb080e07..3734df5c4e 100644 --- a/src/cmd/go/internal/web/file_test.go +++ b/src/cmd/go/internal/web/file_test.go @@ -7,7 +7,6 @@ package web import ( "errors" "io/fs" - "io/ioutil" "os" "path/filepath" "testing" @@ -16,7 +15,7 @@ import ( func TestGetFileURL(t *testing.T) { const content = "Hello, file!\n" - f, err := ioutil.TempFile("", "web-TestGetFileURL") + f, err := os.CreateTemp("", "web-TestGetFileURL") if err != nil { t.Fatal(err) } diff --git a/src/cmd/go/internal/work/action.go b/src/cmd/go/internal/work/action.go index f461c5780f..9d141ae233 100644 --- a/src/cmd/go/internal/work/action.go +++ b/src/cmd/go/internal/work/action.go @@ -14,7 +14,6 @@ import ( "debug/elf" "encoding/json" "fmt" - "io/ioutil" "os" "path/filepath" "runtime" @@ -253,7 +252,7 @@ func (b *Builder) Init() { if cfg.BuildN { b.WorkDir = "$WORK" } else { - tmp, err := ioutil.TempDir(cfg.Getenv("GOTMPDIR"), "go-build") + tmp, err := os.MkdirTemp(cfg.Getenv("GOTMPDIR"), "go-build") if err != nil { base.Fatalf("go: creating work dir: %v", err) } diff --git a/src/cmd/go/internal/work/build_test.go b/src/cmd/go/internal/work/build_test.go index e941729734..eaf2639e9e 100644 --- a/src/cmd/go/internal/work/build_test.go +++ b/src/cmd/go/internal/work/build_test.go @@ -8,7 +8,6 @@ import ( "bytes" "fmt" "io/fs" - "io/ioutil" "os" "path/filepath" "reflect" @@ -170,7 +169,7 @@ func TestSharedLibName(t *testing.T) { for _, data := range testData { func() { if data.rootedAt != "" { - tmpGopath, err := ioutil.TempDir("", "gopath") + tmpGopath, err := os.MkdirTemp("", "gopath") if err != nil { t.Fatal(err) } @@ -238,7 +237,7 @@ func TestRespectSetgidDir(t *testing.T) { return cmdBuf.WriteString(fmt.Sprint(a...)) } - setgiddir, err := ioutil.TempDir("", "SetGroupID") + setgiddir, err := os.MkdirTemp("", "SetGroupID") if err != nil { t.Fatal(err) } @@ -258,9 +257,9 @@ func TestRespectSetgidDir(t *testing.T) { t.Fatal(err) } - pkgfile, err := ioutil.TempFile("", "pkgfile") + pkgfile, err := os.CreateTemp("", "pkgfile") if err != nil { - t.Fatalf("ioutil.TempFile(\"\", \"pkgfile\"): %v", err) + t.Fatalf("os.CreateTemp(\"\", \"pkgfile\"): %v", err) } defer os.Remove(pkgfile.Name()) defer pkgfile.Close() diff --git a/src/cmd/go/internal/work/buildid.go b/src/cmd/go/internal/work/buildid.go index 3c7be5a3e3..d76988145b 100644 --- a/src/cmd/go/internal/work/buildid.go +++ b/src/cmd/go/internal/work/buildid.go @@ -7,7 +7,6 @@ package work import ( "bytes" "fmt" - "io/ioutil" "os" "os/exec" "strings" @@ -344,7 +343,7 @@ func (b *Builder) gccgoBuildIDFile(a *Action) (string, error) { } } - if err := ioutil.WriteFile(sfile, buf.Bytes(), 0666); err != nil { + if err := os.WriteFile(sfile, buf.Bytes(), 0666); err != nil { return "", err } diff --git a/src/cmd/go/internal/work/exec.go b/src/cmd/go/internal/work/exec.go index 6ce56dd6f4..336751df27 100644 --- a/src/cmd/go/internal/work/exec.go +++ b/src/cmd/go/internal/work/exec.go @@ -16,7 +16,6 @@ import ( "internal/lazyregexp" "io" "io/fs" - "io/ioutil" "log" "math/rand" "os" @@ -94,7 +93,7 @@ func (b *Builder) Do(ctx context.Context, root *Action) { base.Fatalf("go: refusing to write action graph to %v\n", file) } js := actionGraphJSON(root) - if err := ioutil.WriteFile(file, []byte(js), 0666); err != nil { + if err := os.WriteFile(file, []byte(js), 0666); err != nil { fmt.Fprintf(os.Stderr, "go: writing action graph: %v\n", err) base.SetExitStatus(1) } @@ -636,7 +635,7 @@ OverlayLoop: sfiles, gccfiles = filter(sfiles, sfiles[:0], gccfiles) } else { for _, sfile := range sfiles { - data, err := ioutil.ReadFile(filepath.Join(a.Package.Dir, sfile)) + data, err := os.ReadFile(filepath.Join(a.Package.Dir, sfile)) if err == nil { if bytes.HasPrefix(data, []byte("TEXT")) || bytes.Contains(data, []byte("\nTEXT")) || bytes.HasPrefix(data, []byte("DATA")) || bytes.Contains(data, []byte("\nDATA")) || @@ -1471,7 +1470,7 @@ func (b *Builder) installShlibname(ctx context.Context, a *Action) error { // TODO: BuildN a1 := a.Deps[0] - err := ioutil.WriteFile(a.Target, []byte(filepath.Base(a1.Target)+"\n"), 0666) + err := os.WriteFile(a.Target, []byte(filepath.Base(a1.Target)+"\n"), 0666) if err != nil { return err } @@ -1788,7 +1787,7 @@ func (b *Builder) writeFile(file string, text []byte) error { if cfg.BuildN { return nil } - return ioutil.WriteFile(file, text, 0666) + return os.WriteFile(file, text, 0666) } // Install the cgo export header file, if there is one. @@ -2537,7 +2536,7 @@ func (b *Builder) gccSupportsFlag(compiler []string, flag string) bool { tmp := os.DevNull if runtime.GOOS == "windows" { - f, err := ioutil.TempFile(b.WorkDir, "") + f, err := os.CreateTemp(b.WorkDir, "") if err != nil { return false } @@ -2840,7 +2839,7 @@ func (b *Builder) cgo(a *Action, cgoExe, objdir string, pcCFLAGS, pcLDFLAGS, cgo continue } - src, err := ioutil.ReadFile(f) + src, err := os.ReadFile(f) if err != nil { return nil, nil, err } @@ -3070,7 +3069,7 @@ func (b *Builder) swigDoIntSize(objdir string) (intsize string, err error) { return "$INTBITS", nil } src := filepath.Join(b.WorkDir, "swig_intsize.go") - if err = ioutil.WriteFile(src, []byte(swigIntSizeCode), 0666); err != nil { + if err = os.WriteFile(src, []byte(swigIntSizeCode), 0666); err != nil { return } srcs := []string{src} @@ -3230,7 +3229,7 @@ func passLongArgsInResponseFiles(cmd *exec.Cmd) (cleanup func()) { return } - tf, err := ioutil.TempFile("", "args") + tf, err := os.CreateTemp("", "args") if err != nil { log.Fatalf("error writing long arguments to response file: %v", err) } diff --git a/src/cmd/go/internal/work/gc.go b/src/cmd/go/internal/work/gc.go index 3a53c714e3..cc4e2b2b2b 100644 --- a/src/cmd/go/internal/work/gc.go +++ b/src/cmd/go/internal/work/gc.go @@ -9,7 +9,6 @@ import ( "bytes" "fmt" "io" - "io/ioutil" "log" "os" "path/filepath" @@ -426,11 +425,11 @@ func toolVerify(a *Action, b *Builder, p *load.Package, newTool string, ofile st if err := b.run(a, p.Dir, p.ImportPath, nil, newArgs...); err != nil { return err } - data1, err := ioutil.ReadFile(ofile) + data1, err := os.ReadFile(ofile) if err != nil { return err } - data2, err := ioutil.ReadFile(ofile + ".new") + data2, err := os.ReadFile(ofile + ".new") if err != nil { return err } @@ -580,7 +579,7 @@ func pluginPath(a *Action) string { } fmt.Fprintf(h, "build ID: %s\n", buildID) for _, file := range str.StringList(p.GoFiles, p.CgoFiles, p.SFiles) { - data, err := ioutil.ReadFile(filepath.Join(p.Dir, file)) + data, err := os.ReadFile(filepath.Join(p.Dir, file)) if err != nil { base.Fatalf("go: %s", err) } diff --git a/src/cmd/go/internal/work/gccgo.go b/src/cmd/go/internal/work/gccgo.go index 01d2b89159..3ffd01c473 100644 --- a/src/cmd/go/internal/work/gccgo.go +++ b/src/cmd/go/internal/work/gccgo.go @@ -6,7 +6,6 @@ package work import ( "fmt" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -271,7 +270,7 @@ func (tools gccgoToolchain) link(b *Builder, root *Action, out, importcfg string } readCgoFlags := func(flagsFile string) error { - flags, err := ioutil.ReadFile(flagsFile) + flags, err := os.ReadFile(flagsFile) if err != nil { return err } diff --git a/src/cmd/go/script_test.go b/src/cmd/go/script_test.go index aee3742f13..dfaa40548e 100644 --- a/src/cmd/go/script_test.go +++ b/src/cmd/go/script_test.go @@ -15,7 +15,6 @@ import ( "go/build" "internal/testenv" "io/fs" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -220,7 +219,7 @@ func (ts *testScript) run() { for _, f := range a.Files { name := ts.mkabs(ts.expand(f.Name, false)) ts.check(os.MkdirAll(filepath.Dir(name), 0777)) - ts.check(ioutil.WriteFile(name, f.Data, 0666)) + ts.check(os.WriteFile(name, f.Data, 0666)) } // With -v or -testwork, start log with full environment. @@ -377,19 +376,19 @@ var ( func isCaseSensitive(t *testing.T) bool { onceCaseSensitive.Do(func() { - tmpdir, err := ioutil.TempDir("", "case-sensitive") + tmpdir, err := os.MkdirTemp("", "case-sensitive") if err != nil { t.Fatal("failed to create directory to determine case-sensitivity:", err) } defer os.RemoveAll(tmpdir) fcap := filepath.Join(tmpdir, "FILE") - if err := ioutil.WriteFile(fcap, []byte{}, 0644); err != nil { + if err := os.WriteFile(fcap, []byte{}, 0644); err != nil { t.Fatal("error writing file to determine case-sensitivity:", err) } flow := filepath.Join(tmpdir, "file") - _, err = ioutil.ReadFile(flow) + _, err = os.ReadFile(flow) switch { case err == nil: caseSensitive = false @@ -450,9 +449,9 @@ func (ts *testScript) cmdAddcrlf(want simpleStatus, args []string) { for _, file := range args { file = ts.mkabs(file) - data, err := ioutil.ReadFile(file) + data, err := os.ReadFile(file) ts.check(err) - ts.check(ioutil.WriteFile(file, bytes.ReplaceAll(data, []byte("\n"), []byte("\r\n")), 0666)) + ts.check(os.WriteFile(file, bytes.ReplaceAll(data, []byte("\n"), []byte("\r\n")), 0666)) } } @@ -557,12 +556,12 @@ func (ts *testScript) doCmdCmp(args []string, env, quiet bool) { } else if name1 == "stderr" { text1 = ts.stderr } else { - data, err := ioutil.ReadFile(ts.mkabs(name1)) + data, err := os.ReadFile(ts.mkabs(name1)) ts.check(err) text1 = string(data) } - data, err := ioutil.ReadFile(ts.mkabs(name2)) + data, err := os.ReadFile(ts.mkabs(name2)) ts.check(err) text2 = string(data) @@ -614,14 +613,14 @@ func (ts *testScript) cmdCp(want simpleStatus, args []string) { info, err := os.Stat(src) ts.check(err) mode = info.Mode() & 0777 - data, err = ioutil.ReadFile(src) + data, err = os.ReadFile(src) ts.check(err) } targ := dst if dstDir { targ = filepath.Join(dst, filepath.Base(src)) } - err := ioutil.WriteFile(targ, data, mode) + err := os.WriteFile(targ, data, mode) switch want { case failure: if err == nil { @@ -897,7 +896,7 @@ func scriptMatch(ts *testScript, want simpleStatus, args []string, text, name st isGrep := name == "grep" if isGrep { name = args[1] // for error messages - data, err := ioutil.ReadFile(ts.mkabs(args[1])) + data, err := os.ReadFile(ts.mkabs(args[1])) ts.check(err) text = string(data) } diff --git a/src/cmd/go/testdata/addmod.go b/src/cmd/go/testdata/addmod.go index 71ac47fdc1..58376b7ed4 100644 --- a/src/cmd/go/testdata/addmod.go +++ b/src/cmd/go/testdata/addmod.go @@ -23,7 +23,6 @@ import ( "flag" "fmt" "io/fs" - "io/ioutil" "log" "os" "os/exec" @@ -58,7 +57,7 @@ func main() { log.SetFlags(0) var err error - tmpdir, err = ioutil.TempDir("", "addmod-") + tmpdir, err = os.MkdirTemp("", "addmod-") if err != nil { log.Fatal(err) } @@ -82,7 +81,7 @@ func main() { exitCode := 0 for _, arg := range flag.Args() { - if err := ioutil.WriteFile(filepath.Join(tmpdir, "go.mod"), []byte("module m\n"), 0666); err != nil { + if err := os.WriteFile(filepath.Join(tmpdir, "go.mod"), []byte("module m\n"), 0666); err != nil { fatalf("%v", err) } run(goCmd, "get", "-d", arg) @@ -98,13 +97,13 @@ func main() { continue } path, vers, dir := f[0], f[1], f[2] - mod, err := ioutil.ReadFile(filepath.Join(gopath, "pkg/mod/cache/download", path, "@v", vers+".mod")) + mod, err := os.ReadFile(filepath.Join(gopath, "pkg/mod/cache/download", path, "@v", vers+".mod")) if err != nil { log.Printf("%s: %v", arg, err) exitCode = 1 continue } - info, err := ioutil.ReadFile(filepath.Join(gopath, "pkg/mod/cache/download", path, "@v", vers+".info")) + info, err := os.ReadFile(filepath.Join(gopath, "pkg/mod/cache/download", path, "@v", vers+".info")) if err != nil { log.Printf("%s: %v", arg, err) exitCode = 1 @@ -128,7 +127,7 @@ func main() { } name := info.Name() if name == "go.mod" || strings.HasSuffix(name, ".go") { - data, err := ioutil.ReadFile(path) + data, err := os.ReadFile(path) if err != nil { return err } @@ -144,7 +143,7 @@ func main() { data := txtar.Format(a) target := filepath.Join("mod", strings.ReplaceAll(path, "/", "_")+"_"+vers+".txt") - if err := ioutil.WriteFile(target, data, 0666); err != nil { + if err := os.WriteFile(target, data, 0666); err != nil { log.Printf("%s: %v", arg, err) exitCode = 1 continue diff --git a/src/cmd/go/testdata/savedir.go b/src/cmd/go/testdata/savedir.go index 75895ee279..d469c31a91 100644 --- a/src/cmd/go/testdata/savedir.go +++ b/src/cmd/go/testdata/savedir.go @@ -18,7 +18,6 @@ import ( "flag" "fmt" "io/fs" - "io/ioutil" "log" "os" "path/filepath" @@ -63,7 +62,7 @@ func main() { if !info.Type().IsRegular() { return nil } - data, err := ioutil.ReadFile(path) + data, err := os.ReadFile(path) if err != nil { log.Fatal(err) } diff --git a/src/cmd/go/testdata/script/build_issue6480.txt b/src/cmd/go/testdata/script/build_issue6480.txt index ae99c60d99..cf1e9ea6c2 100644 --- a/src/cmd/go/testdata/script/build_issue6480.txt +++ b/src/cmd/go/testdata/script/build_issue6480.txt @@ -81,7 +81,6 @@ package main import ( "encoding/json" "fmt" - "io/ioutil" "os" "time" ) @@ -100,7 +99,7 @@ func truncateLike(t, p time.Time) time.Time { func main() { var t1 time.Time - b1, err := ioutil.ReadFile(os.Args[1]) + b1, err := os.ReadFile(os.Args[1]) if err != nil { fmt.Fprintln(os.Stderr, err) os.Exit(1) @@ -111,7 +110,7 @@ func main() { } var t2 time.Time - b2, err := ioutil.ReadFile(os.Args[2]) + b2, err := os.ReadFile(os.Args[2]) if err != nil { fmt.Fprintln(os.Stderr, err) os.Exit(1) diff --git a/src/cmd/go/testdata/script/build_trimpath.txt b/src/cmd/go/testdata/script/build_trimpath.txt index 2c3bee8fdc..e1ea0a48b2 100644 --- a/src/cmd/go/testdata/script/build_trimpath.txt +++ b/src/cmd/go/testdata/script/build_trimpath.txt @@ -121,7 +121,6 @@ package main import ( "bytes" "fmt" - "io/ioutil" "log" "os" "os/exec" @@ -131,7 +130,7 @@ import ( func main() { exe := os.Args[1] - data, err := ioutil.ReadFile(exe) + data, err := os.ReadFile(exe) if err != nil { log.Fatal(err) } diff --git a/src/cmd/go/testdata/script/cover_error.txt b/src/cmd/go/testdata/script/cover_error.txt index 4abdf1137a..583a664237 100644 --- a/src/cmd/go/testdata/script/cover_error.txt +++ b/src/cmd/go/testdata/script/cover_error.txt @@ -54,7 +54,6 @@ func Test(t *testing.T) {} package main import ( - "io/ioutil" "log" "os" "strings" @@ -62,13 +61,13 @@ import ( func main() { log.SetFlags(0) - b, err := ioutil.ReadFile(os.Args[1]) + b, err := os.ReadFile(os.Args[1]) if err != nil { log.Fatal(err) } s := strings.ReplaceAll(string(b), "p.go:4:2:", "p.go:4:") s = strings.ReplaceAll(s, "p1.go:6:2:", "p1.go:6:") - ioutil.WriteFile(os.Args[1], []byte(s), 0644) + os.WriteFile(os.Args[1], []byte(s), 0644) if err != nil { log.Fatal(err) } diff --git a/src/cmd/go/testdata/script/gopath_moved_repo.txt b/src/cmd/go/testdata/script/gopath_moved_repo.txt index 869980da7c..99d80bff5d 100644 --- a/src/cmd/go/testdata/script/gopath_moved_repo.txt +++ b/src/cmd/go/testdata/script/gopath_moved_repo.txt @@ -45,7 +45,6 @@ package main import ( "bytes" - "io/ioutil" "log" "os" ) @@ -57,11 +56,11 @@ func main() { base := []byte(os.Args[1]) path := os.Args[2] - data, err := ioutil.ReadFile(path) + data, err := os.ReadFile(path) if err != nil { log.Fatal(err) } - err = ioutil.WriteFile(path, bytes.ReplaceAll(data, base, append(base, "XXX"...)), 0644) + err = os.WriteFile(path, bytes.ReplaceAll(data, base, append(base, "XXX"...)), 0644) if err != nil { log.Fatal(err) } diff --git a/src/cmd/go/testdata/script/mod_download_concurrent_read.txt b/src/cmd/go/testdata/script/mod_download_concurrent_read.txt index caf105c6e5..231babd0c0 100644 --- a/src/cmd/go/testdata/script/mod_download_concurrent_read.txt +++ b/src/cmd/go/testdata/script/mod_download_concurrent_read.txt @@ -25,7 +25,6 @@ package main import ( "fmt" - "io/ioutil" "log" "os" "os/exec" @@ -45,7 +44,7 @@ func main() { // don't need to clean the cache or synchronize closing files after each // iteration. func run() (err error) { - tmpDir, err := ioutil.TempDir("", "") + tmpDir, err := os.MkdirTemp("", "") if err != nil { return err } diff --git a/src/cmd/go/testdata/script/mod_modinfo.txt b/src/cmd/go/testdata/script/mod_modinfo.txt index d9e9fdec21..8d77e224a5 100644 --- a/src/cmd/go/testdata/script/mod_modinfo.txt +++ b/src/cmd/go/testdata/script/mod_modinfo.txt @@ -69,7 +69,6 @@ package main import ( "bytes" "encoding/hex" - "io/ioutil" "log" "os" @@ -77,7 +76,7 @@ import ( ) func main() { - b, err := ioutil.ReadFile(os.Args[0]) + b, err := os.ReadFile(os.Args[0]) if err != nil { log.Fatal(err) } diff --git a/src/cmd/go/testdata/script/mod_test_cached.txt b/src/cmd/go/testdata/script/mod_test_cached.txt index ffd573c02a..3da4358fa1 100644 --- a/src/cmd/go/testdata/script/mod_test_cached.txt +++ b/src/cmd/go/testdata/script/mod_test_cached.txt @@ -51,26 +51,25 @@ bar package foo_test import ( - "io/ioutil" "os" "path/filepath" "testing" ) func TestWriteTmp(t *testing.T) { - dir, err := ioutil.TempDir("", "") + dir, err := os.MkdirTemp("", "") if err != nil { t.Fatal(err) } defer os.RemoveAll(dir) - err = ioutil.WriteFile(filepath.Join(dir, "x"), nil, 0666) + err = os.WriteFile(filepath.Join(dir, "x"), nil, 0666) if err != nil { t.Fatal(err) } } func TestReadTestdata(t *testing.T) { - _, err := ioutil.ReadFile("testdata/foo.txt") + _, err := os.ReadFile("testdata/foo.txt") if err != nil { t.Fatal(err) } diff --git a/src/cmd/go/testdata/script/test_compile_tempfile.txt b/src/cmd/go/testdata/script/test_compile_tempfile.txt index 912410814f..05f721a800 100644 --- a/src/cmd/go/testdata/script/test_compile_tempfile.txt +++ b/src/cmd/go/testdata/script/test_compile_tempfile.txt @@ -1,7 +1,7 @@ [short] skip # Ensure that the target of 'go build -o' can be an existing, empty file so that -# its name can be reserved using ioutil.TempFile or the 'mktemp` command. +# its name can be reserved using os.CreateTemp or the 'mktemp` command. go build -o empty-file$GOEXE main.go diff --git a/src/cmd/go/testdata/script/test_generated_main.txt b/src/cmd/go/testdata/script/test_generated_main.txt index 75ffa9cde2..2e991a5797 100644 --- a/src/cmd/go/testdata/script/test_generated_main.txt +++ b/src/cmd/go/testdata/script/test_generated_main.txt @@ -12,7 +12,6 @@ package x import ( "os" "path/filepath" - "io/ioutil" "regexp" "testing" ) @@ -23,7 +22,7 @@ func Test(t *testing.T) { t.Fatal(err) } testmainPath := filepath.Join(filepath.Dir(exePath), "_testmain.go") - source, err := ioutil.ReadFile(testmainPath) + source, err := os.ReadFile(testmainPath) if err != nil { t.Fatal(err) } diff --git a/src/cmd/go/testdata/script/test_race_install_cgo.txt b/src/cmd/go/testdata/script/test_race_install_cgo.txt index 82f00f2086..3f4eb90e3f 100644 --- a/src/cmd/go/testdata/script/test_race_install_cgo.txt +++ b/src/cmd/go/testdata/script/test_race_install_cgo.txt @@ -29,7 +29,6 @@ go 1.16 package main import ( - "io/ioutil" "encoding/json" "fmt" "os" @@ -37,7 +36,7 @@ import ( ) func main() { - b, err := ioutil.ReadFile(os.Args[1]) + b, err := os.ReadFile(os.Args[1]) if err != nil { fmt.Fprintln(os.Stderr, err) os.Exit(1) @@ -59,7 +58,6 @@ package main import ( "encoding/json" "fmt" - "io/ioutil" "os" "time" ) @@ -67,7 +65,7 @@ import ( func main() { var t1 time.Time - b1, err := ioutil.ReadFile(os.Args[1]) + b1, err := os.ReadFile(os.Args[1]) if err != nil { fmt.Fprintln(os.Stderr, err) os.Exit(1) @@ -78,7 +76,7 @@ func main() { } var t2 time.Time - b2, err := ioutil.ReadFile(os.Args[2]) + b2, err := os.ReadFile(os.Args[2]) if err != nil { fmt.Fprintln(os.Stderr, err) os.Exit(1) diff --git a/src/cmd/gofmt/gofmt.go b/src/cmd/gofmt/gofmt.go index 719c681a3e..2793c2c2a4 100644 --- a/src/cmd/gofmt/gofmt.go +++ b/src/cmd/gofmt/gofmt.go @@ -15,7 +15,6 @@ import ( "go/token" "io" "io/fs" - "io/ioutil" "os" "path/filepath" "runtime" @@ -137,7 +136,7 @@ func processFile(filename string, in io.Reader, out io.Writer, stdin bool) error if err != nil { return err } - err = ioutil.WriteFile(filename, res, perm) + err = os.WriteFile(filename, res, perm) if err != nil { os.Rename(bakname, filename) return err @@ -278,7 +277,7 @@ const chmodSupported = runtime.GOOS != "windows" // the chosen file name. func backupFile(filename string, data []byte, perm fs.FileMode) (string, error) { // create backup file - f, err := ioutil.TempFile(filepath.Dir(filename), filepath.Base(filename)) + f, err := os.CreateTemp(filepath.Dir(filename), filepath.Base(filename)) if err != nil { return "", err } diff --git a/src/cmd/gofmt/gofmt_test.go b/src/cmd/gofmt/gofmt_test.go index 98d3eb7eb2..bf2adfe64c 100644 --- a/src/cmd/gofmt/gofmt_test.go +++ b/src/cmd/gofmt/gofmt_test.go @@ -7,7 +7,6 @@ package main import ( "bytes" "flag" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -93,7 +92,7 @@ func runTest(t *testing.T, in, out string) { return } - expected, err := ioutil.ReadFile(out) + expected, err := os.ReadFile(out) if err != nil { t.Error(err) return @@ -102,7 +101,7 @@ func runTest(t *testing.T, in, out string) { if got := buf.Bytes(); !bytes.Equal(got, expected) { if *update { if in != out { - if err := ioutil.WriteFile(out, got, 0666); err != nil { + if err := os.WriteFile(out, got, 0666); err != nil { t.Error(err) } return @@ -116,7 +115,7 @@ func runTest(t *testing.T, in, out string) { if err == nil { t.Errorf("%s", d) } - if err := ioutil.WriteFile(in+".gofmt", got, 0666); err != nil { + if err := os.WriteFile(in+".gofmt", got, 0666); err != nil { t.Error(err) } } @@ -157,7 +156,7 @@ func TestCRLF(t *testing.T) { const input = "testdata/crlf.input" // must contain CR/LF's const golden = "testdata/crlf.golden" // must not contain any CR's - data, err := ioutil.ReadFile(input) + data, err := os.ReadFile(input) if err != nil { t.Error(err) } @@ -165,7 +164,7 @@ func TestCRLF(t *testing.T) { t.Errorf("%s contains no CR/LF's", input) } - data, err = ioutil.ReadFile(golden) + data, err = os.ReadFile(golden) if err != nil { t.Error(err) } @@ -175,7 +174,7 @@ func TestCRLF(t *testing.T) { } func TestBackupFile(t *testing.T) { - dir, err := ioutil.TempDir("", "gofmt_test") + dir, err := os.MkdirTemp("", "gofmt_test") if err != nil { t.Fatal(err) } diff --git a/src/cmd/nm/nm_test.go b/src/cmd/nm/nm_test.go index 382446e9fe..0d51b07a44 100644 --- a/src/cmd/nm/nm_test.go +++ b/src/cmd/nm/nm_test.go @@ -8,7 +8,6 @@ import ( "fmt" "internal/obscuretestdata" "internal/testenv" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -31,7 +30,7 @@ func testMain(m *testing.M) int { return 0 } - tmpDir, err := ioutil.TempDir("", "TestNM") + tmpDir, err := os.MkdirTemp("", "TestNM") if err != nil { fmt.Println("TempDir failed:", err) return 2 @@ -88,7 +87,7 @@ func TestNonGoExecs(t *testing.T) { func testGoExec(t *testing.T, iscgo, isexternallinker bool) { t.Parallel() - tmpdir, err := ioutil.TempDir("", "TestGoExec") + tmpdir, err := os.MkdirTemp("", "TestGoExec") if err != nil { t.Fatal(err) } @@ -222,7 +221,7 @@ func TestGoExec(t *testing.T) { func testGoLib(t *testing.T, iscgo bool) { t.Parallel() - tmpdir, err := ioutil.TempDir("", "TestGoLib") + tmpdir, err := os.MkdirTemp("", "TestGoLib") if err != nil { t.Fatal(err) } @@ -245,7 +244,7 @@ func testGoLib(t *testing.T, iscgo bool) { err = e } if err == nil { - err = ioutil.WriteFile(filepath.Join(libpath, "go.mod"), []byte("module mylib\n"), 0666) + err = os.WriteFile(filepath.Join(libpath, "go.mod"), []byte("module mylib\n"), 0666) } if err != nil { t.Fatal(err) diff --git a/src/cmd/objdump/objdump_test.go b/src/cmd/objdump/objdump_test.go index cb692e7a81..edaca774f7 100644 --- a/src/cmd/objdump/objdump_test.go +++ b/src/cmd/objdump/objdump_test.go @@ -10,7 +10,6 @@ import ( "fmt" "go/build" "internal/testenv" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -39,7 +38,7 @@ func TestMain(m *testing.M) { func buildObjdump() error { var err error - tmp, err = ioutil.TempDir("", "TestObjDump") + tmp, err = os.MkdirTemp("", "TestObjDump") if err != nil { return fmt.Errorf("TempDir failed: %v", err) } @@ -320,7 +319,7 @@ func TestGoobjFileNumber(t *testing.T) { t.Parallel() - tmpdir, err := ioutil.TempDir("", "TestGoobjFileNumber") + tmpdir, err := os.MkdirTemp("", "TestGoobjFileNumber") if err != nil { t.Fatal(err) } diff --git a/src/cmd/pack/pack_test.go b/src/cmd/pack/pack_test.go index 9f65705def..218c7acda6 100644 --- a/src/cmd/pack/pack_test.go +++ b/src/cmd/pack/pack_test.go @@ -12,7 +12,6 @@ import ( "internal/testenv" "io" "io/fs" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -22,7 +21,7 @@ import ( // tmpDir creates a temporary directory and returns its name. func tmpDir(t *testing.T) string { - name, err := ioutil.TempDir("", "pack") + name, err := os.MkdirTemp("", "pack") if err != nil { t.Fatal(err) } @@ -158,7 +157,7 @@ func TestExtract(t *testing.T) { ar = openArchive(name, os.O_RDONLY, []string{goodbyeFile.name}) ar.scan(ar.extractContents) ar.a.File().Close() - data, err := ioutil.ReadFile(goodbyeFile.name) + data, err := os.ReadFile(goodbyeFile.name) if err != nil { t.Fatal(err) } @@ -183,7 +182,7 @@ func TestHello(t *testing.T) { println("hello world") } ` - err := ioutil.WriteFile(hello, []byte(prog), 0666) + err := os.WriteFile(hello, []byte(prog), 0666) if err != nil { t.Fatal(err) } @@ -251,7 +250,7 @@ func TestLargeDefs(t *testing.T) { println("ok") } ` - err = ioutil.WriteFile(main, []byte(prog), 0666) + err = os.WriteFile(main, []byte(prog), 0666) if err != nil { t.Fatal(err) } @@ -281,13 +280,13 @@ func TestIssue21703(t *testing.T) { defer os.RemoveAll(dir) const aSrc = `package a; const X = "\n!\n"` - err := ioutil.WriteFile(filepath.Join(dir, "a.go"), []byte(aSrc), 0666) + err := os.WriteFile(filepath.Join(dir, "a.go"), []byte(aSrc), 0666) if err != nil { t.Fatal(err) } const bSrc = `package b; import _ "a"` - err = ioutil.WriteFile(filepath.Join(dir, "b.go"), []byte(bSrc), 0666) + err = os.WriteFile(filepath.Join(dir, "b.go"), []byte(bSrc), 0666) if err != nil { t.Fatal(err) } diff --git a/src/cmd/trace/annotations_test.go b/src/cmd/trace/annotations_test.go index a9068d53c1..9c2d027366 100644 --- a/src/cmd/trace/annotations_test.go +++ b/src/cmd/trace/annotations_test.go @@ -12,7 +12,7 @@ import ( "flag" "fmt" traceparser "internal/trace" - "io/ioutil" + "os" "reflect" "runtime/debug" "runtime/trace" @@ -386,7 +386,7 @@ func saveTrace(buf *bytes.Buffer, name string) { if !*saveTraces { return } - if err := ioutil.WriteFile(name+".trace", buf.Bytes(), 0600); err != nil { + if err := os.WriteFile(name+".trace", buf.Bytes(), 0600); err != nil { panic(fmt.Errorf("failed to write trace file: %v", err)) } } diff --git a/src/cmd/trace/pprof.go b/src/cmd/trace/pprof.go index a31d71b013..a73ff5336a 100644 --- a/src/cmd/trace/pprof.go +++ b/src/cmd/trace/pprof.go @@ -11,7 +11,6 @@ import ( "fmt" "internal/trace" "io" - "io/ioutil" "net/http" "os" "os/exec" @@ -294,7 +293,7 @@ func serveSVGProfile(prof func(w io.Writer, r *http.Request) error) http.Handler return } - blockf, err := ioutil.TempFile("", "block") + blockf, err := os.CreateTemp("", "block") if err != nil { http.Error(w, fmt.Sprintf("failed to create temp file: %v", err), http.StatusInternalServerError) return diff --git a/src/cmd/vet/vet_test.go b/src/cmd/vet/vet_test.go index 5d8139d977..d15d1ce377 100644 --- a/src/cmd/vet/vet_test.go +++ b/src/cmd/vet/vet_test.go @@ -9,7 +9,6 @@ import ( "errors" "fmt" "internal/testenv" - "io/ioutil" "log" "os" "os/exec" @@ -32,7 +31,7 @@ func TestMain(m *testing.M) { } func testMain(m *testing.M) int { - dir, err := ioutil.TempDir("", "vet_test") + dir, err := os.MkdirTemp("", "vet_test") if err != nil { fmt.Fprintln(os.Stderr, err) return 1 @@ -345,7 +344,7 @@ var ( func wantedErrors(file, short string) (errs []wantedError) { cache := make(map[string]*regexp.Regexp) - src, err := ioutil.ReadFile(file) + src, err := os.ReadFile(file) if err != nil { log.Fatal(err) } diff --git a/src/compress/bzip2/bzip2_test.go b/src/compress/bzip2/bzip2_test.go index 98477791b3..e6065cb43f 100644 --- a/src/compress/bzip2/bzip2_test.go +++ b/src/compress/bzip2/bzip2_test.go @@ -9,7 +9,7 @@ import ( "encoding/hex" "fmt" "io" - "io/ioutil" + "os" "testing" ) @@ -22,7 +22,7 @@ func mustDecodeHex(s string) []byte { } func mustLoadFile(f string) []byte { - b, err := ioutil.ReadFile(f) + b, err := os.ReadFile(f) if err != nil { panic(err) } diff --git a/src/compress/flate/deflate_test.go b/src/compress/flate/deflate_test.go index 6fc5abf4d5..ff56712123 100644 --- a/src/compress/flate/deflate_test.go +++ b/src/compress/flate/deflate_test.go @@ -10,8 +10,8 @@ import ( "fmt" "internal/testenv" "io" - "io/ioutil" "math/rand" + "os" "reflect" "runtime/debug" "sync" @@ -387,7 +387,7 @@ func TestDeflateInflateString(t *testing.T) { t.Skip("skipping in short mode") } for _, test := range deflateInflateStringTests { - gold, err := ioutil.ReadFile(test.filename) + gold, err := os.ReadFile(test.filename) if err != nil { t.Error(err) } @@ -685,7 +685,7 @@ func (w *failWriter) Write(b []byte) (int, error) { func TestWriterPersistentError(t *testing.T) { t.Parallel() - d, err := ioutil.ReadFile("../../testdata/Isaac.Newton-Opticks.txt") + d, err := os.ReadFile("../../testdata/Isaac.Newton-Opticks.txt") if err != nil { t.Fatalf("ReadFile: %v", err) } diff --git a/src/compress/flate/huffman_bit_writer_test.go b/src/compress/flate/huffman_bit_writer_test.go index 882d3abec1..a57799cae0 100644 --- a/src/compress/flate/huffman_bit_writer_test.go +++ b/src/compress/flate/huffman_bit_writer_test.go @@ -8,7 +8,6 @@ import ( "bytes" "flag" "fmt" - "io/ioutil" "os" "path/filepath" "strings" @@ -38,7 +37,7 @@ func TestBlockHuff(t *testing.T) { } func testBlockHuff(t *testing.T, in, out string) { - all, err := ioutil.ReadFile(in) + all, err := os.ReadFile(in) if err != nil { t.Error(err) return @@ -49,7 +48,7 @@ func testBlockHuff(t *testing.T, in, out string) { bw.flush() got := buf.Bytes() - want, err := ioutil.ReadFile(out) + want, err := os.ReadFile(out) if err != nil && !*update { t.Error(err) return @@ -60,7 +59,7 @@ func testBlockHuff(t *testing.T, in, out string) { if *update { if in != out { t.Logf("Updating %q", out) - if err := ioutil.WriteFile(out, got, 0666); err != nil { + if err := os.WriteFile(out, got, 0666); err != nil { t.Error(err) } return @@ -70,7 +69,7 @@ func testBlockHuff(t *testing.T, in, out string) { } t.Errorf("%q != %q (see %q)", in, out, in+".got") - if err := ioutil.WriteFile(in+".got", got, 0666); err != nil { + if err := os.WriteFile(in+".got", got, 0666); err != nil { t.Error(err) } return @@ -85,7 +84,7 @@ func testBlockHuff(t *testing.T, in, out string) { got = buf.Bytes() if !bytes.Equal(got, want) { t.Errorf("after reset %q != %q (see %q)", in, out, in+".reset.got") - if err := ioutil.WriteFile(in+".reset.got", got, 0666); err != nil { + if err := os.WriteFile(in+".reset.got", got, 0666); err != nil { t.Error(err) } return @@ -186,7 +185,7 @@ func testBlock(t *testing.T, test huffTest, ttype string) { if *update { if test.input != "" { t.Logf("Updating %q", test.want) - input, err := ioutil.ReadFile(test.input) + input, err := os.ReadFile(test.input) if err != nil { t.Error(err) return @@ -216,12 +215,12 @@ func testBlock(t *testing.T, test huffTest, ttype string) { if test.input != "" { t.Logf("Testing %q", test.want) - input, err := ioutil.ReadFile(test.input) + input, err := os.ReadFile(test.input) if err != nil { t.Error(err) return } - want, err := ioutil.ReadFile(test.want) + want, err := os.ReadFile(test.want) if err != nil { t.Error(err) return @@ -233,7 +232,7 @@ func testBlock(t *testing.T, test huffTest, ttype string) { got := buf.Bytes() if !bytes.Equal(got, want) { t.Errorf("writeBlock did not yield expected result for file %q with input. See %q", test.want, test.want+".got") - if err := ioutil.WriteFile(test.want+".got", got, 0666); err != nil { + if err := os.WriteFile(test.want+".got", got, 0666); err != nil { t.Error(err) } } @@ -247,7 +246,7 @@ func testBlock(t *testing.T, test huffTest, ttype string) { got = buf.Bytes() if !bytes.Equal(got, want) { t.Errorf("reset: writeBlock did not yield expected result for file %q with input. See %q", test.want, test.want+".reset.got") - if err := ioutil.WriteFile(test.want+".reset.got", got, 0666); err != nil { + if err := os.WriteFile(test.want+".reset.got", got, 0666); err != nil { t.Error(err) } return @@ -256,7 +255,7 @@ func testBlock(t *testing.T, test huffTest, ttype string) { testWriterEOF(t, "wb", test, true) } t.Logf("Testing %q", test.wantNoInput) - wantNI, err := ioutil.ReadFile(test.wantNoInput) + wantNI, err := os.ReadFile(test.wantNoInput) if err != nil { t.Error(err) return @@ -268,7 +267,7 @@ func testBlock(t *testing.T, test huffTest, ttype string) { got := buf.Bytes() if !bytes.Equal(got, wantNI) { t.Errorf("writeBlock did not yield expected result for file %q with input. See %q", test.wantNoInput, test.wantNoInput+".got") - if err := ioutil.WriteFile(test.want+".got", got, 0666); err != nil { + if err := os.WriteFile(test.want+".got", got, 0666); err != nil { t.Error(err) } } else if got[0]&1 == 1 { @@ -286,7 +285,7 @@ func testBlock(t *testing.T, test huffTest, ttype string) { got = buf.Bytes() if !bytes.Equal(got, wantNI) { t.Errorf("reset: writeBlock did not yield expected result for file %q without input. See %q", test.want, test.want+".reset.got") - if err := ioutil.WriteFile(test.want+".reset.got", got, 0666); err != nil { + if err := os.WriteFile(test.want+".reset.got", got, 0666); err != nil { t.Error(err) } return @@ -325,7 +324,7 @@ func testWriterEOF(t *testing.T, ttype string, test huffTest, useInput bool) { var input []byte if useInput { var err error - input, err = ioutil.ReadFile(test.input) + input, err = os.ReadFile(test.input) if err != nil { t.Error(err) return diff --git a/src/compress/flate/reader_test.go b/src/compress/flate/reader_test.go index eb32c89184..94610fbb78 100644 --- a/src/compress/flate/reader_test.go +++ b/src/compress/flate/reader_test.go @@ -7,7 +7,7 @@ package flate import ( "bytes" "io" - "io/ioutil" + "os" "runtime" "strings" "testing" @@ -80,7 +80,7 @@ var sizes = []struct { func doBench(b *testing.B, f func(b *testing.B, buf []byte, level, n int)) { for _, suite := range suites { - buf, err := ioutil.ReadFile(suite.file) + buf, err := os.ReadFile(suite.file) if err != nil { b.Fatal(err) } diff --git a/src/compress/lzw/reader_test.go b/src/compress/lzw/reader_test.go index 6d91dd806f..d1eb76d042 100644 --- a/src/compress/lzw/reader_test.go +++ b/src/compress/lzw/reader_test.go @@ -8,8 +8,8 @@ import ( "bytes" "fmt" "io" - "io/ioutil" "math" + "os" "runtime" "strconv" "strings" @@ -218,7 +218,7 @@ func TestNoLongerSavingPriorExpansions(t *testing.T) { } func BenchmarkDecoder(b *testing.B) { - buf, err := ioutil.ReadFile("../testdata/e.txt") + buf, err := os.ReadFile("../testdata/e.txt") if err != nil { b.Fatal(err) } diff --git a/src/compress/lzw/writer_test.go b/src/compress/lzw/writer_test.go index 33a28bdd3a..1a5dbcae93 100644 --- a/src/compress/lzw/writer_test.go +++ b/src/compress/lzw/writer_test.go @@ -8,7 +8,6 @@ import ( "fmt" "internal/testenv" "io" - "io/ioutil" "math" "os" "runtime" @@ -125,7 +124,7 @@ func TestSmallLitWidth(t *testing.T) { } func BenchmarkEncoder(b *testing.B) { - buf, err := ioutil.ReadFile("../testdata/e.txt") + buf, err := os.ReadFile("../testdata/e.txt") if err != nil { b.Fatal(err) } diff --git a/src/compress/zlib/writer_test.go b/src/compress/zlib/writer_test.go index c518729146..f0b38880a6 100644 --- a/src/compress/zlib/writer_test.go +++ b/src/compress/zlib/writer_test.go @@ -9,7 +9,6 @@ import ( "fmt" "internal/testenv" "io" - "io/ioutil" "os" "testing" ) @@ -95,7 +94,7 @@ func testFileLevelDictReset(t *testing.T, fn string, level int, dict []byte) { var b0 []byte var err error if fn != "" { - b0, err = ioutil.ReadFile(fn) + b0, err = os.ReadFile(fn) if err != nil { t.Errorf("%s (level=%d): %v", fn, level, err) return diff --git a/src/crypto/md5/gen.go b/src/crypto/md5/gen.go index a11f22059f..1468924cbc 100644 --- a/src/crypto/md5/gen.go +++ b/src/crypto/md5/gen.go @@ -15,8 +15,8 @@ import ( "bytes" "flag" "go/format" - "io/ioutil" "log" + "os" "strings" "text/template" ) @@ -37,7 +37,7 @@ func main() { if err != nil { log.Fatal(err) } - err = ioutil.WriteFile(*filename, data, 0644) + err = os.WriteFile(*filename, data, 0644) if err != nil { log.Fatal(err) } diff --git a/src/crypto/tls/handshake_test.go b/src/crypto/tls/handshake_test.go index 605be587b5..d9ff9fe948 100644 --- a/src/crypto/tls/handshake_test.go +++ b/src/crypto/tls/handshake_test.go @@ -13,7 +13,6 @@ import ( "flag" "fmt" "io" - "io/ioutil" "net" "os" "os/exec" @@ -224,7 +223,7 @@ func parseTestData(r io.Reader) (flows [][]byte, err error) { // tempFile creates a temp file containing contents and returns its path. func tempFile(contents string) string { - file, err := ioutil.TempFile("", "go-tls-test") + file, err := os.CreateTemp("", "go-tls-test") if err != nil { panic("failed to create temp file: " + err.Error()) } diff --git a/src/crypto/tls/link_test.go b/src/crypto/tls/link_test.go index 8224216b5c..8c392ff7c4 100644 --- a/src/crypto/tls/link_test.go +++ b/src/crypto/tls/link_test.go @@ -7,7 +7,6 @@ package tls import ( "bytes" "internal/testenv" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -77,7 +76,7 @@ func main() { tls.Dial("", "", nil) } exeFile := filepath.Join(tmpDir, "x.exe") for _, tt := range tests { t.Run(tt.name, func(t *testing.T) { - if err := ioutil.WriteFile(goFile, []byte(tt.program), 0644); err != nil { + if err := os.WriteFile(goFile, []byte(tt.program), 0644); err != nil { t.Fatal(err) } os.Remove(exeFile) diff --git a/src/crypto/tls/tls.go b/src/crypto/tls/tls.go index bf577cadea..19884f96e7 100644 --- a/src/crypto/tls/tls.go +++ b/src/crypto/tls/tls.go @@ -22,8 +22,8 @@ import ( "encoding/pem" "errors" "fmt" - "io/ioutil" "net" + "os" "strings" ) @@ -222,11 +222,11 @@ func (d *Dialer) DialContext(ctx context.Context, network, addr string) (net.Con // form a certificate chain. On successful return, Certificate.Leaf will // be nil because the parsed form of the certificate is not retained. func LoadX509KeyPair(certFile, keyFile string) (Certificate, error) { - certPEMBlock, err := ioutil.ReadFile(certFile) + certPEMBlock, err := os.ReadFile(certFile) if err != nil { return Certificate{}, err } - keyPEMBlock, err := ioutil.ReadFile(keyFile) + keyPEMBlock, err := os.ReadFile(keyFile) if err != nil { return Certificate{}, err } diff --git a/src/crypto/x509/name_constraints_test.go b/src/crypto/x509/name_constraints_test.go index 34055d07b5..3826c82c38 100644 --- a/src/crypto/x509/name_constraints_test.go +++ b/src/crypto/x509/name_constraints_test.go @@ -14,7 +14,6 @@ import ( "encoding/hex" "encoding/pem" "fmt" - "io/ioutil" "math/big" "net" "net/url" @@ -2005,7 +2004,7 @@ func TestConstraintCases(t *testing.T) { } func writePEMsToTempFile(certs []*Certificate) *os.File { - file, err := ioutil.TempFile("", "name_constraints_test") + file, err := os.CreateTemp("", "name_constraints_test") if err != nil { panic("cannot create tempfile") } diff --git a/src/crypto/x509/root_ios_gen.go b/src/crypto/x509/root_ios_gen.go index 2bcdab1a77..8bc6e7d9c4 100644 --- a/src/crypto/x509/root_ios_gen.go +++ b/src/crypto/x509/root_ios_gen.go @@ -27,9 +27,9 @@ import ( "fmt" "go/format" "io" - "io/ioutil" "log" "net/http" + "os" "path" "sort" "strings" @@ -155,7 +155,7 @@ func main() { if err != nil { log.Fatal(err) } - if err := ioutil.WriteFile(*output, source, 0644); err != nil { + if err := os.WriteFile(*output, source, 0644); err != nil { log.Fatal(err) } } diff --git a/src/crypto/x509/root_plan9.go b/src/crypto/x509/root_plan9.go index 09f0e23033..2dc4aaf5d7 100644 --- a/src/crypto/x509/root_plan9.go +++ b/src/crypto/x509/root_plan9.go @@ -7,7 +7,6 @@ package x509 import ( - "io/ioutil" "os" ) @@ -24,7 +23,7 @@ func loadSystemRoots() (*CertPool, error) { roots := NewCertPool() var bestErr error for _, file := range certFiles { - data, err := ioutil.ReadFile(file) + data, err := os.ReadFile(file) if err == nil { roots.AppendCertsFromPEM(data) return roots, nil diff --git a/src/crypto/x509/root_unix.go b/src/crypto/x509/root_unix.go index 1090b69f83..3c643466ed 100644 --- a/src/crypto/x509/root_unix.go +++ b/src/crypto/x509/root_unix.go @@ -40,7 +40,7 @@ func loadSystemRoots() (*CertPool, error) { var firstErr error for _, file := range files { - data, err := ioutil.ReadFile(file) + data, err := os.ReadFile(file) if err == nil { roots.AppendCertsFromPEM(data) break @@ -68,7 +68,7 @@ func loadSystemRoots() (*CertPool, error) { continue } for _, fi := range fis { - data, err := ioutil.ReadFile(directory + "/" + fi.Name()) + data, err := os.ReadFile(directory + "/" + fi.Name()) if err == nil { roots.AppendCertsFromPEM(data) } diff --git a/src/crypto/x509/root_unix_test.go b/src/crypto/x509/root_unix_test.go index b2e832ff36..878ed7c2fa 100644 --- a/src/crypto/x509/root_unix_test.go +++ b/src/crypto/x509/root_unix_test.go @@ -9,7 +9,6 @@ package x509 import ( "bytes" "fmt" - "io/ioutil" "os" "path/filepath" "reflect" @@ -147,7 +146,7 @@ func TestLoadSystemCertsLoadColonSeparatedDirs(t *testing.T) { os.Setenv(certFileEnv, origFile) }() - tmpDir, err := ioutil.TempDir(os.TempDir(), "x509-issue35325") + tmpDir, err := os.MkdirTemp(os.TempDir(), "x509-issue35325") if err != nil { t.Fatalf("Failed to create temporary directory: %v", err) } @@ -166,7 +165,7 @@ func TestLoadSystemCertsLoadColonSeparatedDirs(t *testing.T) { t.Fatalf("Failed to create certificate dir: %v", err) } certOutFile := filepath.Join(certDir, "cert.crt") - if err := ioutil.WriteFile(certOutFile, []byte(certPEM), 0655); err != nil { + if err := os.WriteFile(certOutFile, []byte(certPEM), 0655); err != nil { t.Fatalf("Failed to write certificate to file: %v", err) } certDirs = append(certDirs, certDir) diff --git a/src/debug/dwarf/dwarf5ranges_test.go b/src/debug/dwarf/dwarf5ranges_test.go index 2229d439a5..0ff1a55bc9 100644 --- a/src/debug/dwarf/dwarf5ranges_test.go +++ b/src/debug/dwarf/dwarf5ranges_test.go @@ -6,13 +6,13 @@ package dwarf import ( "encoding/binary" - "io/ioutil" + "os" "reflect" "testing" ) func TestDwarf5Ranges(t *testing.T) { - rngLists, err := ioutil.ReadFile("testdata/debug_rnglists") + rngLists, err := os.ReadFile("testdata/debug_rnglists") if err != nil { t.Fatalf("could not read test data: %v", err) } diff --git a/src/debug/gosym/pclntab_test.go b/src/debug/gosym/pclntab_test.go index f93a5bf5e5..7347139b5d 100644 --- a/src/debug/gosym/pclntab_test.go +++ b/src/debug/gosym/pclntab_test.go @@ -10,7 +10,6 @@ import ( "debug/elf" "internal/testenv" "io" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -31,7 +30,7 @@ func dotest(t *testing.T) { t.Skipf("skipping on non-AMD64 system %s", runtime.GOARCH) } var err error - pclineTempDir, err = ioutil.TempDir("", "pclinetest") + pclineTempDir, err = os.MkdirTemp("", "pclinetest") if err != nil { t.Fatal(err) } @@ -278,7 +277,7 @@ func TestPCLine(t *testing.T) { // } // [END] func Test115PclnParsing(t *testing.T) { - zippedDat, err := ioutil.ReadFile("testdata/pcln115.gz") + zippedDat, err := os.ReadFile("testdata/pcln115.gz") if err != nil { t.Fatal(err) } diff --git a/src/debug/pe/file_test.go b/src/debug/pe/file_test.go index d96cd30904..58deff1450 100644 --- a/src/debug/pe/file_test.go +++ b/src/debug/pe/file_test.go @@ -8,7 +8,6 @@ import ( "bytes" "debug/dwarf" "internal/testenv" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -354,7 +353,7 @@ func testDWARF(t *testing.T, linktype int) { } testenv.MustHaveGoRun(t) - tmpdir, err := ioutil.TempDir("", "TestDWARF") + tmpdir, err := os.MkdirTemp("", "TestDWARF") if err != nil { t.Fatal(err) } @@ -473,7 +472,7 @@ func TestBSSHasZeros(t *testing.T) { t.Skip("skipping test: gcc is missing") } - tmpdir, err := ioutil.TempDir("", "TestBSSHasZeros") + tmpdir, err := os.MkdirTemp("", "TestBSSHasZeros") if err != nil { t.Fatal(err) } @@ -492,7 +491,7 @@ main(void) return 0; } ` - err = ioutil.WriteFile(srcpath, []byte(src), 0644) + err = os.WriteFile(srcpath, []byte(src), 0644) if err != nil { t.Fatal(err) } @@ -597,14 +596,14 @@ func TestBuildingWindowsGUI(t *testing.T) { if runtime.GOOS != "windows" { t.Skip("skipping windows only test") } - tmpdir, err := ioutil.TempDir("", "TestBuildingWindowsGUI") + tmpdir, err := os.MkdirTemp("", "TestBuildingWindowsGUI") if err != nil { t.Fatal(err) } defer os.RemoveAll(tmpdir) src := filepath.Join(tmpdir, "a.go") - err = ioutil.WriteFile(src, []byte(`package main; func main() {}`), 0644) + err = os.WriteFile(src, []byte(`package main; func main() {}`), 0644) if err != nil { t.Fatal(err) } @@ -684,7 +683,7 @@ func TestInvalidOptionalHeaderMagic(t *testing.T) { func TestImportedSymbolsNoPanicMissingOptionalHeader(t *testing.T) { // https://golang.org/issue/30250 // ImportedSymbols shouldn't panic if optional headers is missing - data, err := ioutil.ReadFile("testdata/gcc-amd64-mingw-obj") + data, err := os.ReadFile("testdata/gcc-amd64-mingw-obj") if err != nil { t.Fatal(err) } diff --git a/src/embed/internal/embedtest/embedx_test.go b/src/embed/internal/embedtest/embedx_test.go index 53d45488f1..20d5a28c11 100644 --- a/src/embed/internal/embedtest/embedx_test.go +++ b/src/embed/internal/embedtest/embedx_test.go @@ -6,7 +6,7 @@ package embedtest_test import ( "embed" - "io/ioutil" + "os" "testing" ) @@ -59,7 +59,7 @@ func TestXGlobal(t *testing.T) { testString(t, concurrency2, "concurrency2", "Concurrency is not parallelism.\n") testString(t, string(glass2), "glass2", "I can eat glass and it doesn't hurt me.\n") - big, err := ioutil.ReadFile("testdata/ascii.txt") + big, err := os.ReadFile("testdata/ascii.txt") if err != nil { t.Fatal(err) } diff --git a/src/go/build/build_test.go b/src/go/build/build_test.go index 5a4a2d62f5..5a3e9ee714 100644 --- a/src/go/build/build_test.go +++ b/src/go/build/build_test.go @@ -8,7 +8,6 @@ import ( "flag" "internal/testenv" "io" - "io/ioutil" "os" "path/filepath" "reflect" @@ -454,7 +453,7 @@ func TestImportDirNotExist(t *testing.T) { testenv.MustHaveGoBuild(t) // really must just have source ctxt := Default - emptyDir, err := ioutil.TempDir("", t.Name()) + emptyDir, err := os.MkdirTemp("", t.Name()) if err != nil { t.Fatal(err) } @@ -592,7 +591,7 @@ func TestImportPackageOutsideModule(t *testing.T) { // Create a GOPATH in a temporary directory. We don't use testdata // because it's in GOROOT, which interferes with the module heuristic. - gopath, err := ioutil.TempDir("", "gobuild-notmodule") + gopath, err := os.MkdirTemp("", "gobuild-notmodule") if err != nil { t.Fatal(err) } @@ -600,7 +599,7 @@ func TestImportPackageOutsideModule(t *testing.T) { if err := os.MkdirAll(filepath.Join(gopath, "src/example.com/p"), 0777); err != nil { t.Fatal(err) } - if err := ioutil.WriteFile(filepath.Join(gopath, "src/example.com/p/p.go"), []byte("package p"), 0666); err != nil { + if err := os.WriteFile(filepath.Join(gopath, "src/example.com/p/p.go"), []byte("package p"), 0666); err != nil { t.Fatal(err) } @@ -656,12 +655,12 @@ func TestIssue23594(t *testing.T) { // Verifies golang.org/issue/34752. func TestMissingImportErrorRepetition(t *testing.T) { testenv.MustHaveGoBuild(t) // need 'go list' internally - tmp, err := ioutil.TempDir("", "") + tmp, err := os.MkdirTemp("", "") if err != nil { t.Fatal(err) } defer os.RemoveAll(tmp) - if err := ioutil.WriteFile(filepath.Join(tmp, "go.mod"), []byte("module m"), 0666); err != nil { + if err := os.WriteFile(filepath.Join(tmp, "go.mod"), []byte("module m"), 0666); err != nil { t.Fatal(err) } defer os.Setenv("GO111MODULE", os.Getenv("GO111MODULE")) diff --git a/src/go/doc/doc_test.go b/src/go/doc/doc_test.go index ab98bed62b..cbdca62aa1 100644 --- a/src/go/doc/doc_test.go +++ b/src/go/doc/doc_test.go @@ -13,7 +13,7 @@ import ( "go/printer" "go/token" "io/fs" - "io/ioutil" + "os" "path/filepath" "regexp" "strings" @@ -127,7 +127,7 @@ func test(t *testing.T, mode Mode) { // update golden file if necessary golden := filepath.Join(dataDir, fmt.Sprintf("%s.%d.golden", pkg.Name, mode)) if *update { - err := ioutil.WriteFile(golden, got, 0644) + err := os.WriteFile(golden, got, 0644) if err != nil { t.Error(err) } @@ -135,7 +135,7 @@ func test(t *testing.T, mode Mode) { } // get golden file - want, err := ioutil.ReadFile(golden) + want, err := os.ReadFile(golden) if err != nil { t.Error(err) continue diff --git a/src/go/format/benchmark_test.go b/src/go/format/benchmark_test.go index 7bd45c0e95..ac19aa3bf5 100644 --- a/src/go/format/benchmark_test.go +++ b/src/go/format/benchmark_test.go @@ -12,7 +12,7 @@ import ( "flag" "fmt" "go/format" - "io/ioutil" + "os" "testing" ) @@ -67,7 +67,7 @@ func BenchmarkFormat(b *testing.B) { if *debug { filename := t.name + ".src" - err := ioutil.WriteFile(filename, data, 0660) + err := os.WriteFile(filename, data, 0660) if err != nil { b.Fatalf("couldn't write %s: %v", filename, err) } diff --git a/src/go/format/format_test.go b/src/go/format/format_test.go index 58e088ede3..27f4c74cdf 100644 --- a/src/go/format/format_test.go +++ b/src/go/format/format_test.go @@ -9,7 +9,7 @@ import ( "go/ast" "go/parser" "go/token" - "io/ioutil" + "os" "strings" "testing" ) @@ -38,7 +38,7 @@ func diff(t *testing.T, dst, src []byte) { } func TestNode(t *testing.T) { - src, err := ioutil.ReadFile(testfile) + src, err := os.ReadFile(testfile) if err != nil { t.Fatal(err) } @@ -96,7 +96,7 @@ func TestNodeNoModify(t *testing.T) { } func TestSource(t *testing.T) { - src, err := ioutil.ReadFile(testfile) + src, err := os.ReadFile(testfile) if err != nil { t.Fatal(err) } diff --git a/src/go/importer/importer_test.go b/src/go/importer/importer_test.go index ff6e12c0da..0f5121d802 100644 --- a/src/go/importer/importer_test.go +++ b/src/go/importer/importer_test.go @@ -8,7 +8,6 @@ import ( "go/token" "internal/testenv" "io" - "io/ioutil" "os" "os/exec" "runtime" @@ -52,7 +51,7 @@ func TestForCompiler(t *testing.T) { mathBigInt := pkg.Scope().Lookup("Int") posn := fset.Position(mathBigInt.Pos()) // "$GOROOT/src/math/big/int.go:25:1" filename := strings.Replace(posn.Filename, "$GOROOT", runtime.GOROOT(), 1) - data, err := ioutil.ReadFile(filename) + data, err := os.ReadFile(filename) if err != nil { t.Fatalf("can't read file containing declaration of math/big.Int: %v", err) } diff --git a/src/go/internal/gccgoimporter/importer_test.go b/src/go/internal/gccgoimporter/importer_test.go index e4236a5867..35240c8fe6 100644 --- a/src/go/internal/gccgoimporter/importer_test.go +++ b/src/go/internal/gccgoimporter/importer_test.go @@ -7,7 +7,6 @@ package gccgoimporter import ( "go/types" "internal/testenv" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -150,7 +149,7 @@ func TestObjImporter(t *testing.T) { } t.Logf("gccgo version %d.%d", major, minor) - tmpdir, err := ioutil.TempDir("", "TestObjImporter") + tmpdir, err := os.MkdirTemp("", "TestObjImporter") if err != nil { t.Fatal(err) } @@ -159,7 +158,7 @@ func TestObjImporter(t *testing.T) { initmap := make(map[*types.Package]InitData) imp := GetImporter([]string{tmpdir}, initmap) - artmpdir, err := ioutil.TempDir("", "TestObjImporter") + artmpdir, err := os.MkdirTemp("", "TestObjImporter") if err != nil { t.Fatal(err) } diff --git a/src/go/internal/gcimporter/gcimporter_test.go b/src/go/internal/gcimporter/gcimporter_test.go index 663753a18a..8991e3bdee 100644 --- a/src/go/internal/gcimporter/gcimporter_test.go +++ b/src/go/internal/gcimporter/gcimporter_test.go @@ -94,7 +94,7 @@ func testDir(t *testing.T, dir string, endTime time.Time) (nimports int) { } func mktmpdir(t *testing.T) string { - tmpdir, err := ioutil.TempDir("", "gcimporter_test") + tmpdir, err := os.MkdirTemp("", "gcimporter_test") if err != nil { t.Fatal("mktmpdir:", err) } @@ -199,7 +199,7 @@ func TestVersionHandling(t *testing.T) { // create file with corrupted export data // 1) read file - data, err := ioutil.ReadFile(filepath.Join(dir, name)) + data, err := os.ReadFile(filepath.Join(dir, name)) if err != nil { t.Fatal(err) } @@ -216,7 +216,7 @@ func TestVersionHandling(t *testing.T) { // 4) write the file pkgpath += "_corrupted" filename := filepath.Join(corruptdir, pkgpath) + ".a" - ioutil.WriteFile(filename, data, 0666) + os.WriteFile(filename, data, 0666) // test that importing the corrupted file results in an error _, err = Import(fset, make(map[string]*types.Package), pkgpath, corruptdir, nil) diff --git a/src/go/internal/srcimporter/srcimporter.go b/src/go/internal/srcimporter/srcimporter.go index 90bb3a9bc1..c4d501dcd9 100644 --- a/src/go/internal/srcimporter/srcimporter.go +++ b/src/go/internal/srcimporter/srcimporter.go @@ -14,7 +14,6 @@ import ( "go/token" "go/types" "io" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -200,7 +199,7 @@ func (p *Importer) parseFiles(dir string, filenames []string) ([]*ast.File, erro } func (p *Importer) cgo(bp *build.Package) (*ast.File, error) { - tmpdir, err := ioutil.TempDir("", "srcimporter") + tmpdir, err := os.MkdirTemp("", "srcimporter") if err != nil { return nil, err } diff --git a/src/go/parser/interface.go b/src/go/parser/interface.go index d5c18a9e2d..41d9a52847 100644 --- a/src/go/parser/interface.go +++ b/src/go/parser/interface.go @@ -14,6 +14,7 @@ import ( "io" "io/fs" "io/ioutil" + "os" "path/filepath" "strings" ) @@ -39,7 +40,7 @@ func readSource(filename string, src interface{}) ([]byte, error) { } return nil, errors.New("invalid source") } - return ioutil.ReadFile(filename) + return os.ReadFile(filename) } // A Mode value is a set of flags (or 0). diff --git a/src/go/parser/performance_test.go b/src/go/parser/performance_test.go index f2732c0e2b..f81bcee969 100644 --- a/src/go/parser/performance_test.go +++ b/src/go/parser/performance_test.go @@ -6,14 +6,14 @@ package parser import ( "go/token" - "io/ioutil" + "os" "testing" ) var src = readFile("parser.go") func readFile(filename string) []byte { - data, err := ioutil.ReadFile(filename) + data, err := os.ReadFile(filename) if err != nil { panic(err) } diff --git a/src/go/printer/performance_test.go b/src/go/printer/performance_test.go index e23de3fbae..e655fa13ee 100644 --- a/src/go/printer/performance_test.go +++ b/src/go/printer/performance_test.go @@ -12,8 +12,8 @@ import ( "go/ast" "go/parser" "io" - "io/ioutil" "log" + "os" "testing" ) @@ -29,7 +29,7 @@ func testprint(out io.Writer, file *ast.File) { func initialize() { const filename = "testdata/parser.go" - src, err := ioutil.ReadFile(filename) + src, err := os.ReadFile(filename) if err != nil { log.Fatalf("%s", err) } diff --git a/src/go/printer/printer_test.go b/src/go/printer/printer_test.go index b64bc6bfb7..45e501115a 100644 --- a/src/go/printer/printer_test.go +++ b/src/go/printer/printer_test.go @@ -13,7 +13,7 @@ import ( "go/parser" "go/token" "io" - "io/ioutil" + "os" "path/filepath" "testing" "time" @@ -119,7 +119,7 @@ func diff(aname, bname string, a, b []byte) error { } func runcheck(t *testing.T, source, golden string, mode checkMode) { - src, err := ioutil.ReadFile(source) + src, err := os.ReadFile(source) if err != nil { t.Error(err) return @@ -133,14 +133,14 @@ func runcheck(t *testing.T, source, golden string, mode checkMode) { // update golden files if necessary if *update { - if err := ioutil.WriteFile(golden, res, 0644); err != nil { + if err := os.WriteFile(golden, res, 0644); err != nil { t.Error(err) } return } // get golden - gld, err := ioutil.ReadFile(golden) + gld, err := os.ReadFile(golden) if err != nil { t.Error(err) return @@ -552,7 +552,7 @@ func TestBaseIndent(t *testing.T) { // are not indented (because their values must not change) and make // this test fail. const filename = "printer.go" - src, err := ioutil.ReadFile(filename) + src, err := os.ReadFile(filename) if err != nil { panic(err) // error in test } @@ -639,7 +639,7 @@ func (l *limitWriter) Write(buf []byte) (n int, err error) { func TestWriteErrors(t *testing.T) { t.Parallel() const filename = "printer.go" - src, err := ioutil.ReadFile(filename) + src, err := os.ReadFile(filename) if err != nil { panic(err) // error in test } diff --git a/src/go/scanner/scanner_test.go b/src/go/scanner/scanner_test.go index 9d3bbbbb24..ab4c2dd962 100644 --- a/src/go/scanner/scanner_test.go +++ b/src/go/scanner/scanner_test.go @@ -6,7 +6,6 @@ package scanner import ( "go/token" - "io/ioutil" "os" "path/filepath" "runtime" @@ -893,7 +892,7 @@ func BenchmarkScan(b *testing.B) { func BenchmarkScanFile(b *testing.B) { b.StopTimer() const filename = "scanner.go" - src, err := ioutil.ReadFile(filename) + src, err := os.ReadFile(filename) if err != nil { panic(err) } diff --git a/src/go/types/check_test.go b/src/go/types/check_test.go index 37b287a20d..841ca24511 100644 --- a/src/go/types/check_test.go +++ b/src/go/types/check_test.go @@ -34,6 +34,7 @@ import ( "go/token" "internal/testenv" "io/ioutil" + "os" "path/filepath" "regexp" "strings" @@ -153,7 +154,7 @@ func errMap(t *testing.T, testname string, files []*ast.File) map[string][]strin for _, file := range files { filename := fset.Position(file.Package).Filename - src, err := ioutil.ReadFile(filename) + src, err := os.ReadFile(filename) if err != nil { t.Fatalf("%s: could not read %s", testname, filename) } diff --git a/src/go/types/hilbert_test.go b/src/go/types/hilbert_test.go index 9783ce6dc9..77954d2f8b 100644 --- a/src/go/types/hilbert_test.go +++ b/src/go/types/hilbert_test.go @@ -12,7 +12,7 @@ import ( "go/importer" "go/parser" "go/token" - "io/ioutil" + "os" "testing" . "go/types" @@ -27,7 +27,7 @@ func TestHilbert(t *testing.T) { // generate source src := program(*H, *out) if *out != "" { - ioutil.WriteFile(*out, src, 0666) + os.WriteFile(*out, src, 0666) return } diff --git a/src/hash/crc32/gen_const_ppc64le.go b/src/hash/crc32/gen_const_ppc64le.go index bfb3b3a227..d7af018af4 100644 --- a/src/hash/crc32/gen_const_ppc64le.go +++ b/src/hash/crc32/gen_const_ppc64le.go @@ -27,7 +27,7 @@ package main import ( "bytes" "fmt" - "io/ioutil" + "os" ) var blocking = 32 * 1024 @@ -103,7 +103,7 @@ func main() { genCrc32ConstTable(w, 0xeb31d82e, "Koop") b := w.Bytes() - err := ioutil.WriteFile("crc32_table_ppc64le.s", b, 0666) + err := os.WriteFile("crc32_table_ppc64le.s", b, 0666) if err != nil { fmt.Printf("can't write output: %s\n", err) } diff --git a/src/html/template/examplefiles_test.go b/src/html/template/examplefiles_test.go index 60518aee9e..5eb2597464 100644 --- a/src/html/template/examplefiles_test.go +++ b/src/html/template/examplefiles_test.go @@ -6,7 +6,6 @@ package template_test import ( "io" - "io/ioutil" "log" "os" "path/filepath" @@ -20,7 +19,7 @@ type templateFile struct { } func createTestDir(files []templateFile) string { - dir, err := ioutil.TempDir("", "template") + dir, err := os.MkdirTemp("", "template") if err != nil { log.Fatal(err) } diff --git a/src/html/template/template.go b/src/html/template/template.go index bc960afe5f..69312d36fd 100644 --- a/src/html/template/template.go +++ b/src/html/template/template.go @@ -8,7 +8,7 @@ import ( "fmt" "io" "io/fs" - "io/ioutil" + "os" "path" "path/filepath" "sync" @@ -523,7 +523,7 @@ func parseFS(t *Template, fsys fs.FS, patterns []string) (*Template, error) { func readFileOS(file string) (name string, b []byte, err error) { name = filepath.Base(file) - b, err = ioutil.ReadFile(file) + b, err = os.ReadFile(file) return } diff --git a/src/image/color/palette/gen.go b/src/image/color/palette/gen.go index f8587db8f3..3243e53981 100644 --- a/src/image/color/palette/gen.go +++ b/src/image/color/palette/gen.go @@ -15,8 +15,8 @@ import ( "fmt" "go/format" "io" - "io/ioutil" "log" + "os" ) var filename = flag.String("output", "palette.go", "output file name") @@ -43,7 +43,7 @@ func main() { if err != nil { log.Fatal(err) } - err = ioutil.WriteFile(*filename, data, 0644) + err = os.WriteFile(*filename, data, 0644) if err != nil { log.Fatal(err) } diff --git a/src/image/gif/reader_test.go b/src/image/gif/reader_test.go index 29f47b6c08..5eec5ecb4a 100644 --- a/src/image/gif/reader_test.go +++ b/src/image/gif/reader_test.go @@ -11,7 +11,7 @@ import ( "image/color" "image/color/palette" "io" - "io/ioutil" + "os" "reflect" "runtime" "runtime/debug" @@ -424,7 +424,7 @@ func TestDecodeMemoryConsumption(t *testing.T) { } func BenchmarkDecode(b *testing.B) { - data, err := ioutil.ReadFile("../testdata/video-001.gif") + data, err := os.ReadFile("../testdata/video-001.gif") if err != nil { b.Fatal(err) } diff --git a/src/image/internal/imageutil/gen.go b/src/image/internal/imageutil/gen.go index bc85c512f9..36de5dc9cc 100644 --- a/src/image/internal/imageutil/gen.go +++ b/src/image/internal/imageutil/gen.go @@ -11,7 +11,6 @@ import ( "flag" "fmt" "go/format" - "io/ioutil" "log" "os" ) @@ -36,7 +35,7 @@ func main() { if err != nil { log.Fatal(err) } - if err := ioutil.WriteFile("impl.go", out, 0660); err != nil { + if err := os.WriteFile("impl.go", out, 0660); err != nil { log.Fatal(err) } } diff --git a/src/image/jpeg/reader_test.go b/src/image/jpeg/reader_test.go index 1e2798c945..bf07fadede 100644 --- a/src/image/jpeg/reader_test.go +++ b/src/image/jpeg/reader_test.go @@ -11,7 +11,6 @@ import ( "image" "image/color" "io" - "io/ioutil" "math/rand" "os" "strings" @@ -118,7 +117,7 @@ func (r *eofReader) Read(b []byte) (n int, err error) { func TestDecodeEOF(t *testing.T) { // Check that if reader returns final data and EOF at same time, jpeg handles it. - data, err := ioutil.ReadFile("../testdata/video-001.jpeg") + data, err := os.ReadFile("../testdata/video-001.jpeg") if err != nil { t.Fatal(err) } @@ -189,7 +188,7 @@ func pixString(pix []byte, stride, x, y int) string { } func TestTruncatedSOSDataDoesntPanic(t *testing.T) { - b, err := ioutil.ReadFile("../testdata/video-005.gray.q50.jpeg") + b, err := os.ReadFile("../testdata/video-005.gray.q50.jpeg") if err != nil { t.Fatal(err) } @@ -493,7 +492,7 @@ func TestExtraneousData(t *testing.T) { } func benchmarkDecode(b *testing.B, filename string) { - data, err := ioutil.ReadFile(filename) + data, err := os.ReadFile(filename) if err != nil { b.Fatal(err) } diff --git a/src/image/png/reader_test.go b/src/image/png/reader_test.go index 22c704e5cb..3937685294 100644 --- a/src/image/png/reader_test.go +++ b/src/image/png/reader_test.go @@ -11,7 +11,6 @@ import ( "image" "image/color" "io" - "io/ioutil" "os" "reflect" "strings" @@ -785,7 +784,7 @@ func TestDimensionOverflow(t *testing.T) { } func benchmarkDecode(b *testing.B, filename string, bytesPerPixel int) { - data, err := ioutil.ReadFile(filename) + data, err := os.ReadFile(filename) if err != nil { b.Fatal(err) } diff --git a/src/index/suffixarray/gen.go b/src/index/suffixarray/gen.go index 8c3de553c9..94184d71b6 100644 --- a/src/index/suffixarray/gen.go +++ b/src/index/suffixarray/gen.go @@ -11,8 +11,8 @@ package main import ( "bytes" - "io/ioutil" "log" + "os" "strings" ) @@ -20,7 +20,7 @@ func main() { log.SetPrefix("gen: ") log.SetFlags(0) - data, err := ioutil.ReadFile("sais.go") + data, err := os.ReadFile("sais.go") if err != nil { log.Fatal(err) } @@ -64,7 +64,7 @@ func main() { } } - if err := ioutil.WriteFile("sais2.go", buf.Bytes(), 0666); err != nil { + if err := os.WriteFile("sais2.go", buf.Bytes(), 0666); err != nil { log.Fatal(err) } } diff --git a/src/index/suffixarray/suffixarray_test.go b/src/index/suffixarray/suffixarray_test.go index a11a98dae0..44c5041535 100644 --- a/src/index/suffixarray/suffixarray_test.go +++ b/src/index/suffixarray/suffixarray_test.go @@ -8,8 +8,8 @@ import ( "bytes" "fmt" "io/fs" - "io/ioutil" "math/rand" + "os" "path/filepath" "regexp" "sort" @@ -498,14 +498,14 @@ func makeText(name string) ([]byte, error) { switch name { case "opticks": var err error - data, err = ioutil.ReadFile("../../testdata/Isaac.Newton-Opticks.txt") + data, err = os.ReadFile("../../testdata/Isaac.Newton-Opticks.txt") if err != nil { return nil, err } case "go": err := filepath.WalkDir("../..", func(path string, info fs.DirEntry, err error) error { if err == nil && strings.HasSuffix(path, ".go") && !info.IsDir() { - file, err := ioutil.ReadFile(path) + file, err := os.ReadFile(path) if err != nil { return err } diff --git a/src/internal/cpu/cpu_s390x_test.go b/src/internal/cpu/cpu_s390x_test.go index d910bbe695..ad86858db0 100644 --- a/src/internal/cpu/cpu_s390x_test.go +++ b/src/internal/cpu/cpu_s390x_test.go @@ -7,13 +7,13 @@ package cpu_test import ( "errors" . "internal/cpu" - "io/ioutil" + "os" "regexp" "testing" ) func getFeatureList() ([]string, error) { - cpuinfo, err := ioutil.ReadFile("/proc/cpuinfo") + cpuinfo, err := os.ReadFile("/proc/cpuinfo") if err != nil { return nil, err } diff --git a/src/internal/obscuretestdata/obscuretestdata.go b/src/internal/obscuretestdata/obscuretestdata.go index 06cd1df22c..5ea2cdf5d1 100644 --- a/src/internal/obscuretestdata/obscuretestdata.go +++ b/src/internal/obscuretestdata/obscuretestdata.go @@ -10,7 +10,6 @@ package obscuretestdata import ( "encoding/base64" "io" - "io/ioutil" "os" ) @@ -24,7 +23,7 @@ func DecodeToTempFile(name string) (path string, err error) { } defer f.Close() - tmp, err := ioutil.TempFile("", "obscuretestdata-decoded-") + tmp, err := os.CreateTemp("", "obscuretestdata-decoded-") if err != nil { return "", err } diff --git a/src/internal/poll/read_test.go b/src/internal/poll/read_test.go index 2d4ef97da0..598a52ee44 100644 --- a/src/internal/poll/read_test.go +++ b/src/internal/poll/read_test.go @@ -5,7 +5,6 @@ package poll_test import ( - "io/ioutil" "os" "runtime" "sync" @@ -22,7 +21,7 @@ func TestRead(t *testing.T) { go func(p string) { defer wg.Done() for i := 0; i < 100; i++ { - if _, err := ioutil.ReadFile(p); err != nil { + if _, err := os.ReadFile(p); err != nil { t.Error(err) return } diff --git a/src/internal/testenv/testenv_windows.go b/src/internal/testenv/testenv_windows.go index eb8d6ac165..4802b13951 100644 --- a/src/internal/testenv/testenv_windows.go +++ b/src/internal/testenv/testenv_windows.go @@ -5,7 +5,6 @@ package testenv import ( - "io/ioutil" "os" "path/filepath" "sync" @@ -16,7 +15,7 @@ var symlinkOnce sync.Once var winSymlinkErr error func initWinHasSymlink() { - tmpdir, err := ioutil.TempDir("", "symtest") + tmpdir, err := os.MkdirTemp("", "symtest") if err != nil { panic("failed to create temp directory: " + err.Error()) } diff --git a/src/internal/trace/gc_test.go b/src/internal/trace/gc_test.go index 4f9c77041a..9b9771e7b0 100644 --- a/src/internal/trace/gc_test.go +++ b/src/internal/trace/gc_test.go @@ -6,8 +6,8 @@ package trace import ( "bytes" - "io/ioutil" "math" + "os" "testing" "time" ) @@ -84,7 +84,7 @@ func TestMMUTrace(t *testing.T) { t.Skip("skipping in -short mode") } - data, err := ioutil.ReadFile("testdata/stress_1_10_good") + data, err := os.ReadFile("testdata/stress_1_10_good") if err != nil { t.Fatalf("failed to read input file: %v", err) } @@ -126,7 +126,7 @@ func TestMMUTrace(t *testing.T) { } func BenchmarkMMU(b *testing.B) { - data, err := ioutil.ReadFile("testdata/stress_1_10_good") + data, err := os.ReadFile("testdata/stress_1_10_good") if err != nil { b.Fatalf("failed to read input file: %v", err) } diff --git a/src/internal/trace/parser_test.go b/src/internal/trace/parser_test.go index 6d87970157..316220cfa8 100644 --- a/src/internal/trace/parser_test.go +++ b/src/internal/trace/parser_test.go @@ -47,7 +47,7 @@ func TestParseCanned(t *testing.T) { if testing.Short() && info.Size() > 10000 { continue } - data, err := ioutil.ReadFile(name) + data, err := os.ReadFile(name) if err != nil { t.Fatal(err) } diff --git a/src/log/syslog/syslog_test.go b/src/log/syslog/syslog_test.go index 8f472a56b7..207bcf57c1 100644 --- a/src/log/syslog/syslog_test.go +++ b/src/log/syslog/syslog_test.go @@ -10,7 +10,6 @@ import ( "bufio" "fmt" "io" - "io/ioutil" "log" "net" "os" @@ -88,8 +87,8 @@ func startServer(n, la string, done chan<- string) (addr string, sock io.Closer, } else { // unix and unixgram: choose an address if none given if la == "" { - // use ioutil.TempFile to get a name that is unique - f, err := ioutil.TempFile("", "syslogtest") + // use os.CreateTemp to get a name that is unique + f, err := os.CreateTemp("", "syslogtest") if err != nil { log.Fatal("TempFile: ", err) } diff --git a/src/math/big/link_test.go b/src/math/big/link_test.go index 2212bd444f..42f9cefca0 100644 --- a/src/math/big/link_test.go +++ b/src/math/big/link_test.go @@ -7,7 +7,7 @@ package big import ( "bytes" "internal/testenv" - "io/ioutil" + "os" "os/exec" "path/filepath" "testing" @@ -27,7 +27,7 @@ func TestLinkerGC(t *testing.T) { import _ "math/big" func main() {} `) - if err := ioutil.WriteFile(goFile, file, 0644); err != nil { + if err := os.WriteFile(goFile, file, 0644); err != nil { t.Fatal(err) } cmd := exec.Command(goBin, "build", "-o", "x.exe", "x.go") diff --git a/src/math/bits/make_examples.go b/src/math/bits/make_examples.go index cd81cd6c4d..1d3ad53fe6 100644 --- a/src/math/bits/make_examples.go +++ b/src/math/bits/make_examples.go @@ -11,9 +11,9 @@ package main import ( "bytes" "fmt" - "io/ioutil" "log" "math/bits" + "os" ) const header = `// Copyright 2017 The Go Authors. All rights reserved. @@ -106,7 +106,7 @@ func main() { } } - if err := ioutil.WriteFile("example_test.go", w.Bytes(), 0666); err != nil { + if err := os.WriteFile("example_test.go", w.Bytes(), 0666); err != nil { log.Fatal(err) } } diff --git a/src/math/bits/make_tables.go b/src/math/bits/make_tables.go index ff2fe2e385..b068d5e0e3 100644 --- a/src/math/bits/make_tables.go +++ b/src/math/bits/make_tables.go @@ -13,8 +13,8 @@ import ( "fmt" "go/format" "io" - "io/ioutil" "log" + "os" ) var header = []byte(`// Copyright 2017 The Go Authors. All rights reserved. @@ -40,7 +40,7 @@ func main() { log.Fatal(err) } - err = ioutil.WriteFile("bits_tables.go", out, 0666) + err = os.WriteFile("bits_tables.go", out, 0666) if err != nil { log.Fatal(err) } diff --git a/src/mime/multipart/formdata.go b/src/mime/multipart/formdata.go index 9c42ea8c02..fca5f9e15f 100644 --- a/src/mime/multipart/formdata.go +++ b/src/mime/multipart/formdata.go @@ -8,7 +8,6 @@ import ( "bytes" "errors" "io" - "io/ioutil" "math" "net/textproto" "os" @@ -91,7 +90,7 @@ func (r *Reader) readForm(maxMemory int64) (_ *Form, err error) { } if n > maxMemory { // too big, write to disk and flush buffer - file, err := ioutil.TempFile("", "multipart-") + file, err := os.CreateTemp("", "multipart-") if err != nil { return nil, err } diff --git a/src/net/dnsclient_unix_test.go b/src/net/dnsclient_unix_test.go index 06553636ee..0530c92c2e 100644 --- a/src/net/dnsclient_unix_test.go +++ b/src/net/dnsclient_unix_test.go @@ -10,7 +10,6 @@ import ( "context" "errors" "fmt" - "io/ioutil" "os" "path" "reflect" @@ -235,7 +234,7 @@ type resolvConfTest struct { } func newResolvConfTest() (*resolvConfTest, error) { - dir, err := ioutil.TempDir("", "go-resolvconftest") + dir, err := os.MkdirTemp("", "go-resolvconftest") if err != nil { return nil, err } diff --git a/src/net/error_test.go b/src/net/error_test.go index 7823fdf9d8..556eb8c8d4 100644 --- a/src/net/error_test.go +++ b/src/net/error_test.go @@ -13,7 +13,6 @@ import ( "internal/poll" "io" "io/fs" - "io/ioutil" "net/internal/socktest" "os" "runtime" @@ -730,7 +729,7 @@ func TestFileError(t *testing.T) { t.Skipf("not supported on %s", runtime.GOOS) } - f, err := ioutil.TempFile("", "go-nettest") + f, err := os.CreateTemp("", "go-nettest") if err != nil { t.Fatal(err) } diff --git a/src/net/http/filetransport_test.go b/src/net/http/filetransport_test.go index fdfd44d967..b58888dcb1 100644 --- a/src/net/http/filetransport_test.go +++ b/src/net/http/filetransport_test.go @@ -6,7 +6,6 @@ package http import ( "io" - "io/ioutil" "os" "path/filepath" "testing" @@ -24,10 +23,10 @@ func checker(t *testing.T) func(string, error) { func TestFileTransport(t *testing.T) { check := checker(t) - dname, err := ioutil.TempDir("", "") + dname, err := os.MkdirTemp("", "") check("TempDir", err) fname := filepath.Join(dname, "foo.txt") - err = ioutil.WriteFile(fname, []byte("Bar"), 0644) + err = os.WriteFile(fname, []byte("Bar"), 0644) check("WriteFile", err) defer os.Remove(dname) defer os.Remove(fname) diff --git a/src/net/http/fs_test.go b/src/net/http/fs_test.go index 2e4751114d..2499051625 100644 --- a/src/net/http/fs_test.go +++ b/src/net/http/fs_test.go @@ -79,7 +79,7 @@ func TestServeFile(t *testing.T) { var err error - file, err := ioutil.ReadFile(testFile) + file, err := os.ReadFile(testFile) if err != nil { t.Fatal("reading file:", err) } @@ -379,12 +379,12 @@ func mustRemoveAll(dir string) { func TestFileServerImplicitLeadingSlash(t *testing.T) { defer afterTest(t) - tempDir, err := ioutil.TempDir("", "") + tempDir, err := os.MkdirTemp("", "") if err != nil { t.Fatalf("TempDir: %v", err) } defer mustRemoveAll(tempDir) - if err := ioutil.WriteFile(filepath.Join(tempDir, "foo.txt"), []byte("Hello world"), 0644); err != nil { + if err := os.WriteFile(filepath.Join(tempDir, "foo.txt"), []byte("Hello world"), 0644); err != nil { t.Fatalf("WriteFile: %v", err) } ts := httptest.NewServer(StripPrefix("/bar/", FileServer(Dir(tempDir)))) @@ -1177,7 +1177,7 @@ func TestLinuxSendfile(t *testing.T) { filename := fmt.Sprintf("1kb-%d", os.Getpid()) filepath := path.Join(os.TempDir(), filename) - if err := ioutil.WriteFile(filepath, bytes.Repeat([]byte{'a'}, 1<<10), 0755); err != nil { + if err := os.WriteFile(filepath, bytes.Repeat([]byte{'a'}, 1<<10), 0755); err != nil { t.Fatal(err) } defer os.Remove(filepath) diff --git a/src/net/http/request_test.go b/src/net/http/request_test.go index 689498e19d..29297b0e7b 100644 --- a/src/net/http/request_test.go +++ b/src/net/http/request_test.go @@ -12,7 +12,6 @@ import ( "encoding/base64" "fmt" "io" - "io/ioutil" "math" "mime/multipart" . "net/http" @@ -1164,7 +1163,7 @@ func BenchmarkFileAndServer_64MB(b *testing.B) { } func benchmarkFileAndServer(b *testing.B, n int64) { - f, err := ioutil.TempFile(os.TempDir(), "go-bench-http-file-and-server") + f, err := os.CreateTemp(os.TempDir(), "go-bench-http-file-and-server") if err != nil { b.Fatalf("Failed to create temp file: %v", err) } diff --git a/src/net/http/transfer_test.go b/src/net/http/transfer_test.go index 1f3d32526d..f0c28b2629 100644 --- a/src/net/http/transfer_test.go +++ b/src/net/http/transfer_test.go @@ -10,7 +10,6 @@ import ( "crypto/rand" "fmt" "io" - "io/ioutil" "os" "reflect" "strings" @@ -118,7 +117,7 @@ func TestTransferWriterWriteBodyReaderTypes(t *testing.T) { nBytes := int64(1 << 10) newFileFunc := func() (r io.Reader, done func(), err error) { - f, err := ioutil.TempFile("", "net-http-newfilefunc") + f, err := os.CreateTemp("", "net-http-newfilefunc") if err != nil { return nil, nil, err } diff --git a/src/net/http/transport_test.go b/src/net/http/transport_test.go index f22b798035..7f6e0938c2 100644 --- a/src/net/http/transport_test.go +++ b/src/net/http/transport_test.go @@ -23,7 +23,6 @@ import ( "go/token" "internal/nettrace" "io" - "io/ioutil" "log" mrand "math/rand" "net" @@ -5746,7 +5745,7 @@ func (c *testMockTCPConn) ReadFrom(r io.Reader) (int64, error) { func TestTransportRequestWriteRoundTrip(t *testing.T) { nBytes := int64(1 << 10) newFileFunc := func() (r io.Reader, done func(), err error) { - f, err := ioutil.TempFile("", "net-http-newfilefunc") + f, err := os.CreateTemp("", "net-http-newfilefunc") if err != nil { return nil, nil, err } diff --git a/src/net/mockserver_test.go b/src/net/mockserver_test.go index e085f4440b..9faf173679 100644 --- a/src/net/mockserver_test.go +++ b/src/net/mockserver_test.go @@ -9,16 +9,15 @@ package net import ( "errors" "fmt" - "io/ioutil" "os" "sync" "testing" "time" ) -// testUnixAddr uses ioutil.TempFile to get a name that is unique. +// testUnixAddr uses os.CreateTemp to get a name that is unique. func testUnixAddr() string { - f, err := ioutil.TempFile("", "go-nettest") + f, err := os.CreateTemp("", "go-nettest") if err != nil { panic(err) } diff --git a/src/net/net_windows_test.go b/src/net/net_windows_test.go index 8aa719f433..a0000950c6 100644 --- a/src/net/net_windows_test.go +++ b/src/net/net_windows_test.go @@ -9,7 +9,6 @@ import ( "bytes" "fmt" "io" - "io/ioutil" "os" "os/exec" "regexp" @@ -176,7 +175,7 @@ func runCmd(args ...string) ([]byte, error) { } return b } - f, err := ioutil.TempFile("", "netcmd") + f, err := os.CreateTemp("", "netcmd") if err != nil { return nil, err } @@ -189,7 +188,7 @@ func runCmd(args ...string) ([]byte, error) { return nil, fmt.Errorf("%s failed: %v: %q", args[0], err, string(removeUTF8BOM(out))) } var err2 error - out, err2 = ioutil.ReadFile(f.Name()) + out, err2 = os.ReadFile(f.Name()) if err2 != nil { return nil, err2 } @@ -198,7 +197,7 @@ func runCmd(args ...string) ([]byte, error) { } return nil, fmt.Errorf("%s failed: %v", args[0], err) } - out, err = ioutil.ReadFile(f.Name()) + out, err = os.ReadFile(f.Name()) if err != nil { return nil, err } diff --git a/src/net/unixsock_test.go b/src/net/unixsock_test.go index 4b2cfc4d62..0b13bf655f 100644 --- a/src/net/unixsock_test.go +++ b/src/net/unixsock_test.go @@ -9,7 +9,6 @@ package net import ( "bytes" "internal/testenv" - "io/ioutil" "os" "reflect" "runtime" @@ -417,7 +416,7 @@ func TestUnixUnlink(t *testing.T) { checkExists(t, "after Listen") l.Close() checkNotExists(t, "after Listener close") - if err := ioutil.WriteFile(name, []byte("hello world"), 0666); err != nil { + if err := os.WriteFile(name, []byte("hello world"), 0666); err != nil { t.Fatalf("cannot recreate socket file: %v", err) } checkExists(t, "after writing temp file") diff --git a/src/os/error_test.go b/src/os/error_test.go index 060cf59875..6264ccc966 100644 --- a/src/os/error_test.go +++ b/src/os/error_test.go @@ -8,14 +8,13 @@ import ( "errors" "fmt" "io/fs" - "io/ioutil" "os" "path/filepath" "testing" ) func TestErrIsExist(t *testing.T) { - f, err := ioutil.TempFile("", "_Go_ErrIsExist") + f, err := os.CreateTemp("", "_Go_ErrIsExist") if err != nil { t.Fatalf("open ErrIsExist tempfile: %s", err) return @@ -55,7 +54,7 @@ func testErrNotExist(name string) string { } func TestErrIsNotExist(t *testing.T) { - tmpDir, err := ioutil.TempDir("", "_Go_ErrIsNotExist") + tmpDir, err := os.MkdirTemp("", "_Go_ErrIsNotExist") if err != nil { t.Fatalf("create ErrIsNotExist tempdir: %s", err) return @@ -147,12 +146,12 @@ func TestIsPermission(t *testing.T) { } func TestErrPathNUL(t *testing.T) { - f, err := ioutil.TempFile("", "_Go_ErrPathNUL\x00") + f, err := os.CreateTemp("", "_Go_ErrPathNUL\x00") if err == nil { f.Close() t.Fatal("TempFile should have failed") } - f, err = ioutil.TempFile("", "_Go_ErrPathNUL") + f, err = os.CreateTemp("", "_Go_ErrPathNUL") if err != nil { t.Fatalf("open ErrPathNUL tempfile: %s", err) } diff --git a/src/os/exec/exec_test.go b/src/os/exec/exec_test.go index fc49b8a332..92429f63a5 100644 --- a/src/os/exec/exec_test.go +++ b/src/os/exec/exec_test.go @@ -645,7 +645,7 @@ func TestExtraFiles(t *testing.T) { t.Errorf("success trying to fetch %s; want an error", ts.URL) } - tf, err := ioutil.TempFile("", "") + tf, err := os.CreateTemp("", "") if err != nil { t.Fatalf("TempFile: %v", err) } diff --git a/src/os/exec/lp_unix_test.go b/src/os/exec/lp_unix_test.go index e4656cafb8..296480fd04 100644 --- a/src/os/exec/lp_unix_test.go +++ b/src/os/exec/lp_unix_test.go @@ -7,13 +7,12 @@ package exec import ( - "io/ioutil" "os" "testing" ) func TestLookPathUnixEmptyPath(t *testing.T) { - tmp, err := ioutil.TempDir("", "TestLookPathUnixEmptyPath") + tmp, err := os.MkdirTemp("", "TestLookPathUnixEmptyPath") if err != nil { t.Fatal("TempDir failed: ", err) } diff --git a/src/os/exec/lp_windows_test.go b/src/os/exec/lp_windows_test.go index 59b5f1c2c7..c6f3d5d406 100644 --- a/src/os/exec/lp_windows_test.go +++ b/src/os/exec/lp_windows_test.go @@ -11,7 +11,6 @@ import ( "fmt" "internal/testenv" "io" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -307,7 +306,7 @@ var lookPathTests = []lookPathTest{ } func TestLookPath(t *testing.T) { - tmp, err := ioutil.TempDir("", "TestLookPath") + tmp, err := os.MkdirTemp("", "TestLookPath") if err != nil { t.Fatal("TempDir failed: ", err) } @@ -504,7 +503,7 @@ var commandTests = []commandTest{ } func TestCommand(t *testing.T) { - tmp, err := ioutil.TempDir("", "TestCommand") + tmp, err := os.MkdirTemp("", "TestCommand") if err != nil { t.Fatal("TempDir failed: ", err) } @@ -529,7 +528,7 @@ func TestCommand(t *testing.T) { func buildPrintPathExe(t *testing.T, dir string) string { const name = "printpath" srcname := name + ".go" - err := ioutil.WriteFile(filepath.Join(dir, srcname), []byte(printpathSrc), 0644) + err := os.WriteFile(filepath.Join(dir, srcname), []byte(printpathSrc), 0644) if err != nil { t.Fatalf("failed to create source: %v", err) } diff --git a/src/os/fifo_test.go b/src/os/fifo_test.go index 3041dcfa02..2439192a9d 100644 --- a/src/os/fifo_test.go +++ b/src/os/fifo_test.go @@ -11,7 +11,6 @@ import ( "bytes" "fmt" "io" - "io/ioutil" "os" "path/filepath" "runtime" @@ -31,7 +30,7 @@ func TestFifoEOF(t *testing.T) { t.Skip("skipping on OpenBSD; issue 25877") } - dir, err := ioutil.TempDir("", "TestFifoEOF") + dir, err := os.MkdirTemp("", "TestFifoEOF") if err != nil { t.Fatal(err) } diff --git a/src/os/os_test.go b/src/os/os_test.go index c5e5cbbb1b..765797f5fb 100644 --- a/src/os/os_test.go +++ b/src/os/os_test.go @@ -11,7 +11,7 @@ import ( "fmt" "internal/testenv" "io" - "io/ioutil" + "os" . "os" osexec "os/exec" "path/filepath" @@ -155,7 +155,7 @@ func localTmp() string { } func newFile(testName string, t *testing.T) (f *File) { - f, err := ioutil.TempFile(localTmp(), "_Go_"+testName) + f, err := os.CreateTemp(localTmp(), "_Go_"+testName) if err != nil { t.Fatalf("TempFile %s: %s", testName, err) } @@ -163,7 +163,7 @@ func newFile(testName string, t *testing.T) (f *File) { } func newDir(testName string, t *testing.T) (name string) { - name, err := ioutil.TempDir(localTmp(), "_Go_"+testName) + name, err := os.MkdirTemp(localTmp(), "_Go_"+testName) if err != nil { t.Fatalf("TempDir %s: %s", testName, err) } @@ -616,7 +616,7 @@ func TestReaddirNValues(t *testing.T) { if testing.Short() { t.Skip("test.short; skipping") } - dir, err := ioutil.TempDir("", "") + dir, err := os.MkdirTemp("", "") if err != nil { t.Fatalf("TempDir: %v", err) } @@ -715,7 +715,7 @@ func TestReaddirStatFailures(t *testing.T) { // testing it wouldn't work. t.Skipf("skipping test on %v", runtime.GOOS) } - dir, err := ioutil.TempDir("", "") + dir, err := os.MkdirTemp("", "") if err != nil { t.Fatalf("TempDir: %v", err) } @@ -776,7 +776,7 @@ func TestReaddirStatFailures(t *testing.T) { // Readdir on a regular file should fail. func TestReaddirOfFile(t *testing.T) { - f, err := ioutil.TempFile("", "_Go_ReaddirOfFile") + f, err := os.CreateTemp("", "_Go_ReaddirOfFile") if err != nil { t.Fatal(err) } @@ -867,7 +867,7 @@ func chtmpdir(t *testing.T) func() { if err != nil { t.Fatalf("chtmpdir: %v", err) } - d, err := ioutil.TempDir("", "test") + d, err := os.MkdirTemp("", "test") if err != nil { t.Fatalf("chtmpdir: %v", err) } @@ -992,12 +992,12 @@ func TestRenameOverwriteDest(t *testing.T) { toData := []byte("to") fromData := []byte("from") - err := ioutil.WriteFile(to, toData, 0777) + err := os.WriteFile(to, toData, 0777) if err != nil { t.Fatalf("write file %q failed: %v", to, err) } - err = ioutil.WriteFile(from, fromData, 0777) + err = os.WriteFile(from, fromData, 0777) if err != nil { t.Fatalf("write file %q failed: %v", from, err) } @@ -1341,7 +1341,7 @@ func testChtimes(t *testing.T, name string) { // the contents are accessed; also, it is set // whenever mtime is set. case "netbsd": - mounts, _ := ioutil.ReadFile("/proc/mounts") + mounts, _ := os.ReadFile("/proc/mounts") if strings.Contains(string(mounts), "noatime") { t.Logf("AccessTime didn't go backwards, but see a filesystem mounted noatime; ignoring. Issue 19293.") } else { @@ -1415,7 +1415,7 @@ func TestChdirAndGetwd(t *testing.T) { case "arm64": dirs = nil for _, d := range []string{"d1", "d2"} { - dir, err := ioutil.TempDir("", d) + dir, err := os.MkdirTemp("", d) if err != nil { t.Fatalf("TempDir: %v", err) } @@ -1509,7 +1509,7 @@ func TestProgWideChdir(t *testing.T) { c <- true t.Fatalf("Getwd: %v", err) } - d, err := ioutil.TempDir("", "test") + d, err := os.MkdirTemp("", "test") if err != nil { c <- true t.Fatalf("TempDir: %v", err) @@ -1576,7 +1576,7 @@ func TestSeek(t *testing.T) { off, err := f.Seek(tt.in, tt.whence) if off != tt.out || err != nil { if e, ok := err.(*PathError); ok && e.Err == syscall.EINVAL && tt.out > 1<<32 && runtime.GOOS == "linux" { - mounts, _ := ioutil.ReadFile("/proc/mounts") + mounts, _ := os.ReadFile("/proc/mounts") if strings.Contains(string(mounts), "reiserfs") { // Reiserfs rejects the big seeks. t.Skipf("skipping test known to fail on reiserfs; https://golang.org/issue/91") @@ -1858,7 +1858,7 @@ func TestWriteAt(t *testing.T) { t.Fatalf("WriteAt 7: %d, %v", n, err) } - b, err := ioutil.ReadFile(f.Name()) + b, err := os.ReadFile(f.Name()) if err != nil { t.Fatalf("ReadFile %s: %v", f.Name(), err) } @@ -1906,7 +1906,7 @@ func writeFile(t *testing.T, fname string, flag int, text string) string { t.Fatalf("WriteString: %d, %v", n, err) } f.Close() - data, err := ioutil.ReadFile(fname) + data, err := os.ReadFile(fname) if err != nil { t.Fatalf("ReadFile: %v", err) } @@ -1948,7 +1948,7 @@ func TestAppend(t *testing.T) { func TestStatDirWithTrailingSlash(t *testing.T) { // Create new temporary directory and arrange to clean it up. - path, err := ioutil.TempDir("", "_TestStatDirWithSlash_") + path, err := os.MkdirTemp("", "_TestStatDirWithSlash_") if err != nil { t.Fatalf("TempDir: %s", err) } @@ -2090,7 +2090,7 @@ func TestLargeWriteToConsole(t *testing.T) { func TestStatDirModeExec(t *testing.T) { const mode = 0111 - path, err := ioutil.TempDir("", "go-build") + path, err := os.MkdirTemp("", "go-build") if err != nil { t.Fatalf("Failed to create temp directory: %v", err) } @@ -2159,7 +2159,7 @@ func TestStatStdin(t *testing.T) { func TestStatRelativeSymlink(t *testing.T) { testenv.MustHaveSymlink(t) - tmpdir, err := ioutil.TempDir("", "TestStatRelativeSymlink") + tmpdir, err := os.MkdirTemp("", "TestStatRelativeSymlink") if err != nil { t.Fatal(err) } @@ -2249,8 +2249,8 @@ func TestLongPath(t *testing.T) { t.Fatalf("MkdirAll failed: %v", err) } data := []byte("hello world\n") - if err := ioutil.WriteFile(sizedTempDir+"/foo.txt", data, 0644); err != nil { - t.Fatalf("ioutil.WriteFile() failed: %v", err) + if err := os.WriteFile(sizedTempDir+"/foo.txt", data, 0644); err != nil { + t.Fatalf("os.WriteFile() failed: %v", err) } if err := Rename(sizedTempDir+"/foo.txt", sizedTempDir+"/bar.txt"); err != nil { t.Fatalf("Rename failed: %v", err) @@ -2434,7 +2434,7 @@ func TestRemoveAllRace(t *testing.T) { n := runtime.GOMAXPROCS(16) defer runtime.GOMAXPROCS(n) - root, err := ioutil.TempDir("", "issue") + root, err := os.MkdirTemp("", "issue") if err != nil { t.Fatal(err) } diff --git a/src/os/os_unix_test.go b/src/os/os_unix_test.go index 0bce2989c4..51693fd82a 100644 --- a/src/os/os_unix_test.go +++ b/src/os/os_unix_test.go @@ -8,7 +8,7 @@ package os_test import ( "io" - "io/ioutil" + "os" . "os" "path/filepath" "runtime" @@ -190,7 +190,7 @@ func TestReaddirRemoveRace(t *testing.T) { } dir := newDir("TestReaddirRemoveRace", t) defer RemoveAll(dir) - if err := ioutil.WriteFile(filepath.Join(dir, "some-file"), []byte("hello"), 0644); err != nil { + if err := os.WriteFile(filepath.Join(dir, "some-file"), []byte("hello"), 0644); err != nil { t.Fatal(err) } d, err := Open(dir) diff --git a/src/os/os_windows_test.go b/src/os/os_windows_test.go index e002774844..8d1d1f61b2 100644 --- a/src/os/os_windows_test.go +++ b/src/os/os_windows_test.go @@ -13,7 +13,6 @@ import ( "internal/testenv" "io" "io/fs" - "io/ioutil" "os" osexec "os/exec" "path/filepath" @@ -31,7 +30,7 @@ import ( type syscallDescriptor = syscall.Handle func TestSameWindowsFile(t *testing.T) { - temp, err := ioutil.TempDir("", "TestSameWindowsFile") + temp, err := os.MkdirTemp("", "TestSameWindowsFile") if err != nil { t.Fatal(err) } @@ -90,7 +89,7 @@ type dirLinkTest struct { } func testDirLinks(t *testing.T, tests []dirLinkTest) { - tmpdir, err := ioutil.TempDir("", "testDirLinks") + tmpdir, err := os.MkdirTemp("", "testDirLinks") if err != nil { t.Fatal(err) } @@ -115,7 +114,7 @@ func testDirLinks(t *testing.T, tests []dirLinkTest) { if err != nil { t.Fatal(err) } - err = ioutil.WriteFile(filepath.Join(dir, "abc"), []byte("abc"), 0644) + err = os.WriteFile(filepath.Join(dir, "abc"), []byte("abc"), 0644) if err != nil { t.Fatal(err) } @@ -127,7 +126,7 @@ func testDirLinks(t *testing.T, tests []dirLinkTest) { continue } - data, err := ioutil.ReadFile(filepath.Join(link, "abc")) + data, err := os.ReadFile(filepath.Join(link, "abc")) if err != nil { t.Errorf("failed to read abc file: %v", err) continue @@ -439,7 +438,7 @@ func TestNetworkSymbolicLink(t *testing.T) { const _NERR_ServerNotStarted = syscall.Errno(2114) - dir, err := ioutil.TempDir("", "TestNetworkSymbolicLink") + dir, err := os.MkdirTemp("", "TestNetworkSymbolicLink") if err != nil { t.Fatal(err) } @@ -600,7 +599,7 @@ func TestStatDir(t *testing.T) { } func TestOpenVolumeName(t *testing.T) { - tmpdir, err := ioutil.TempDir("", "TestOpenVolumeName") + tmpdir, err := os.MkdirTemp("", "TestOpenVolumeName") if err != nil { t.Fatal(err) } @@ -619,7 +618,7 @@ func TestOpenVolumeName(t *testing.T) { want := []string{"file1", "file2", "file3", "gopher.txt"} sort.Strings(want) for _, name := range want { - err := ioutil.WriteFile(filepath.Join(tmpdir, name), nil, 0777) + err := os.WriteFile(filepath.Join(tmpdir, name), nil, 0777) if err != nil { t.Fatal(err) } @@ -643,7 +642,7 @@ func TestOpenVolumeName(t *testing.T) { } func TestDeleteReadOnly(t *testing.T) { - tmpdir, err := ioutil.TempDir("", "TestDeleteReadOnly") + tmpdir, err := os.MkdirTemp("", "TestDeleteReadOnly") if err != nil { t.Fatal(err) } @@ -804,7 +803,7 @@ func compareCommandLineToArgvWithSyscall(t *testing.T, cmd string) { } func TestCmdArgs(t *testing.T) { - tmpdir, err := ioutil.TempDir("", "TestCmdArgs") + tmpdir, err := os.MkdirTemp("", "TestCmdArgs") if err != nil { t.Fatal(err) } @@ -823,7 +822,7 @@ func main() { } ` src := filepath.Join(tmpdir, "main.go") - err = ioutil.WriteFile(src, []byte(prog), 0666) + err = os.WriteFile(src, []byte(prog), 0666) if err != nil { t.Fatal(err) } @@ -971,14 +970,14 @@ func TestSymlinkCreation(t *testing.T) { } t.Parallel() - temp, err := ioutil.TempDir("", "TestSymlinkCreation") + temp, err := os.MkdirTemp("", "TestSymlinkCreation") if err != nil { t.Fatal(err) } defer os.RemoveAll(temp) dummyFile := filepath.Join(temp, "file") - err = ioutil.WriteFile(dummyFile, []byte(""), 0644) + err = os.WriteFile(dummyFile, []byte(""), 0644) if err != nil { t.Fatal(err) } @@ -1207,7 +1206,7 @@ func mklinkd(t *testing.T, link, target string) { } func TestWindowsReadlink(t *testing.T) { - tmpdir, err := ioutil.TempDir("", "TestWindowsReadlink") + tmpdir, err := os.MkdirTemp("", "TestWindowsReadlink") if err != nil { t.Fatal(err) } @@ -1272,7 +1271,7 @@ func TestWindowsReadlink(t *testing.T) { testReadlink(t, "reldirlink", "dir") file := filepath.Join(tmpdir, "file") - err = ioutil.WriteFile(file, []byte(""), 0666) + err = os.WriteFile(file, []byte(""), 0666) if err != nil { t.Fatal(err) } diff --git a/src/os/path_test.go b/src/os/path_test.go index 3fe9c5ffa3..b79d958711 100644 --- a/src/os/path_test.go +++ b/src/os/path_test.go @@ -6,7 +6,7 @@ package os_test import ( "internal/testenv" - "io/ioutil" + "os" . "os" "path/filepath" "runtime" @@ -78,7 +78,7 @@ func TestMkdirAll(t *testing.T) { func TestMkdirAllWithSymlink(t *testing.T) { testenv.MustHaveSymlink(t) - tmpDir, err := ioutil.TempDir("", "TestMkdirAllWithSymlink-") + tmpDir, err := os.MkdirTemp("", "TestMkdirAllWithSymlink-") if err != nil { t.Fatal(err) } diff --git a/src/os/path_windows_test.go b/src/os/path_windows_test.go index 862b404362..869db8fd6c 100644 --- a/src/os/path_windows_test.go +++ b/src/os/path_windows_test.go @@ -5,7 +5,6 @@ package os_test import ( - "io/ioutil" "os" "strings" "syscall" @@ -48,7 +47,7 @@ func TestFixLongPath(t *testing.T) { } func TestMkdirAllExtendedLength(t *testing.T) { - tmpDir, err := ioutil.TempDir("", "TestMkdirAllExtendedLength") + tmpDir, err := os.MkdirTemp("", "TestMkdirAllExtendedLength") if err != nil { t.Fatal(err) } diff --git a/src/os/pipe_test.go b/src/os/pipe_test.go index 0593efec75..b98e53845c 100644 --- a/src/os/pipe_test.go +++ b/src/os/pipe_test.go @@ -14,7 +14,6 @@ import ( "internal/testenv" "io" "io/fs" - "io/ioutil" "os" osexec "os/exec" "os/signal" @@ -161,7 +160,7 @@ func testClosedPipeRace(t *testing.T, read bool) { // Get the amount we have to write to overload a pipe // with no reader. limit = 131073 - if b, err := ioutil.ReadFile("/proc/sys/fs/pipe-max-size"); err == nil { + if b, err := os.ReadFile("/proc/sys/fs/pipe-max-size"); err == nil { if i, err := strconv.Atoi(strings.TrimSpace(string(b))); err == nil { limit = i + 1 } diff --git a/src/os/readfrom_linux_test.go b/src/os/readfrom_linux_test.go index 00faf39fe5..37047175e6 100644 --- a/src/os/readfrom_linux_test.go +++ b/src/os/readfrom_linux_test.go @@ -8,8 +8,8 @@ import ( "bytes" "internal/poll" "io" - "io/ioutil" "math/rand" + "os" . "os" "path/filepath" "strconv" @@ -173,7 +173,7 @@ func TestCopyFileRange(t *testing.T) { }) t.Run("Nil", func(t *testing.T) { var nilFile *File - anyFile, err := ioutil.TempFile("", "") + anyFile, err := os.CreateTemp("", "") if err != nil { t.Fatal(err) } diff --git a/src/os/removeall_test.go b/src/os/removeall_test.go index 90efa313ea..3a2f6e3759 100644 --- a/src/os/removeall_test.go +++ b/src/os/removeall_test.go @@ -6,7 +6,7 @@ package os_test import ( "fmt" - "io/ioutil" + "os" . "os" "path/filepath" "runtime" @@ -15,7 +15,7 @@ import ( ) func TestRemoveAll(t *testing.T) { - tmpDir, err := ioutil.TempDir("", "TestRemoveAll-") + tmpDir, err := os.MkdirTemp("", "TestRemoveAll-") if err != nil { t.Fatal(err) } @@ -128,7 +128,7 @@ func TestRemoveAllLarge(t *testing.T) { t.Skip("skipping in short mode") } - tmpDir, err := ioutil.TempDir("", "TestRemoveAll-") + tmpDir, err := os.MkdirTemp("", "TestRemoveAll-") if err != nil { t.Fatal(err) } @@ -169,7 +169,7 @@ func TestRemoveAllLongPath(t *testing.T) { t.Fatalf("Could not get wd: %s", err) } - startPath, err := ioutil.TempDir("", "TestRemoveAllLongPath-") + startPath, err := os.MkdirTemp("", "TestRemoveAllLongPath-") if err != nil { t.Fatalf("Could not create TempDir: %s", err) } @@ -211,7 +211,7 @@ func TestRemoveAllDot(t *testing.T) { if err != nil { t.Fatalf("Could not get wd: %s", err) } - tempDir, err := ioutil.TempDir("", "TestRemoveAllDot-") + tempDir, err := os.MkdirTemp("", "TestRemoveAllDot-") if err != nil { t.Fatalf("Could not create TempDir: %s", err) } @@ -236,7 +236,7 @@ func TestRemoveAllDot(t *testing.T) { func TestRemoveAllDotDot(t *testing.T) { t.Parallel() - tempDir, err := ioutil.TempDir("", "TestRemoveAllDotDot-") + tempDir, err := os.MkdirTemp("", "TestRemoveAllDotDot-") if err != nil { t.Fatal(err) } @@ -261,7 +261,7 @@ func TestRemoveAllDotDot(t *testing.T) { func TestRemoveReadOnlyDir(t *testing.T) { t.Parallel() - tempDir, err := ioutil.TempDir("", "TestRemoveReadOnlyDir-") + tempDir, err := os.MkdirTemp("", "TestRemoveReadOnlyDir-") if err != nil { t.Fatal(err) } @@ -298,7 +298,7 @@ func TestRemoveAllButReadOnlyAndPathError(t *testing.T) { t.Parallel() - tempDir, err := ioutil.TempDir("", "TestRemoveAllButReadOnly-") + tempDir, err := os.MkdirTemp("", "TestRemoveAllButReadOnly-") if err != nil { t.Fatal(err) } @@ -389,7 +389,7 @@ func TestRemoveUnreadableDir(t *testing.T) { t.Parallel() - tempDir, err := ioutil.TempDir("", "TestRemoveAllButReadOnly-") + tempDir, err := os.MkdirTemp("", "TestRemoveAllButReadOnly-") if err != nil { t.Fatal(err) } @@ -413,7 +413,7 @@ func TestRemoveAllWithMoreErrorThanReqSize(t *testing.T) { t.Skip("skipping in short mode") } - tmpDir, err := ioutil.TempDir("", "TestRemoveAll-") + tmpDir, err := os.MkdirTemp("", "TestRemoveAll-") if err != nil { t.Fatal(err) } diff --git a/src/os/signal/signal_test.go b/src/os/signal/signal_test.go index 23e33fe82b..8945cbfccb 100644 --- a/src/os/signal/signal_test.go +++ b/src/os/signal/signal_test.go @@ -12,7 +12,6 @@ import ( "flag" "fmt" "internal/testenv" - "io/ioutil" "os" "os/exec" "runtime" @@ -304,7 +303,7 @@ func TestDetectNohup(t *testing.T) { os.Remove("nohup.out") out, err := exec.Command("/usr/bin/nohup", os.Args[0], "-test.run=TestDetectNohup", "-check_sighup_ignored").CombinedOutput() - data, _ := ioutil.ReadFile("nohup.out") + data, _ := os.ReadFile("nohup.out") os.Remove("nohup.out") if err != nil { t.Errorf("ran test with -check_sighup_ignored under nohup and it failed: expected success.\nError: %v\nOutput:\n%s%s", err, out, data) diff --git a/src/os/signal/signal_windows_test.go b/src/os/signal/signal_windows_test.go index c2b59010fc..4640428587 100644 --- a/src/os/signal/signal_windows_test.go +++ b/src/os/signal/signal_windows_test.go @@ -7,7 +7,6 @@ package signal import ( "bytes" "internal/testenv" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -57,7 +56,7 @@ func main() { } } ` - tmp, err := ioutil.TempDir("", "TestCtrlBreak") + tmp, err := os.MkdirTemp("", "TestCtrlBreak") if err != nil { t.Fatal("TempDir failed: ", err) } diff --git a/src/os/stat_test.go b/src/os/stat_test.go index 88b789080e..c409f0ff18 100644 --- a/src/os/stat_test.go +++ b/src/os/stat_test.go @@ -7,7 +7,6 @@ package os_test import ( "internal/testenv" "io/fs" - "io/ioutil" "os" "path/filepath" "runtime" @@ -186,7 +185,7 @@ func testSymlinkSameFile(t *testing.T, path, link string) { func TestDirAndSymlinkStats(t *testing.T) { testenv.MustHaveSymlink(t) - tmpdir, err := ioutil.TempDir("", "TestDirAndSymlinkStats") + tmpdir, err := os.MkdirTemp("", "TestDirAndSymlinkStats") if err != nil { t.Fatal(err) } @@ -219,14 +218,14 @@ func TestDirAndSymlinkStats(t *testing.T) { func TestFileAndSymlinkStats(t *testing.T) { testenv.MustHaveSymlink(t) - tmpdir, err := ioutil.TempDir("", "TestFileAndSymlinkStats") + tmpdir, err := os.MkdirTemp("", "TestFileAndSymlinkStats") if err != nil { t.Fatal(err) } defer os.RemoveAll(tmpdir) file := filepath.Join(tmpdir, "file") - err = ioutil.WriteFile(file, []byte(""), 0644) + err = os.WriteFile(file, []byte(""), 0644) if err != nil { t.Fatal(err) } @@ -253,7 +252,7 @@ func TestFileAndSymlinkStats(t *testing.T) { func TestSymlinkWithTrailingSlash(t *testing.T) { testenv.MustHaveSymlink(t) - tmpdir, err := ioutil.TempDir("", "TestSymlinkWithTrailingSlash") + tmpdir, err := os.MkdirTemp("", "TestSymlinkWithTrailingSlash") if err != nil { t.Fatal(err) } diff --git a/src/os/timeout_test.go b/src/os/timeout_test.go index d848e41642..0a39f46333 100644 --- a/src/os/timeout_test.go +++ b/src/os/timeout_test.go @@ -11,7 +11,6 @@ package os_test import ( "fmt" "io" - "io/ioutil" "math/rand" "os" "os/signal" @@ -29,7 +28,7 @@ func TestNonpollableDeadline(t *testing.T) { t.Skipf("skipping on %s", runtime.GOOS) } - f, err := ioutil.TempFile("", "ostest") + f, err := os.CreateTemp("", "ostest") if err != nil { t.Fatal(err) } diff --git a/src/os/user/lookup_plan9.go b/src/os/user/lookup_plan9.go index ea3ce0bc7c..33ae3a6adf 100644 --- a/src/os/user/lookup_plan9.go +++ b/src/os/user/lookup_plan9.go @@ -6,7 +6,6 @@ package user import ( "fmt" - "io/ioutil" "os" "syscall" ) @@ -23,7 +22,7 @@ func init() { } func current() (*User, error) { - ubytes, err := ioutil.ReadFile(userFile) + ubytes, err := os.ReadFile(userFile) if err != nil { return nil, fmt.Errorf("user: %s", err) } diff --git a/src/path/filepath/example_unix_walk_test.go b/src/path/filepath/example_unix_walk_test.go index 66dc7f6b53..c8a818fd6e 100644 --- a/src/path/filepath/example_unix_walk_test.go +++ b/src/path/filepath/example_unix_walk_test.go @@ -9,13 +9,12 @@ package filepath_test import ( "fmt" "io/fs" - "io/ioutil" "os" "path/filepath" ) func prepareTestDirTree(tree string) (string, error) { - tmpDir, err := ioutil.TempDir("", "") + tmpDir, err := os.MkdirTemp("", "") if err != nil { return "", fmt.Errorf("error creating temp directory: %v\n", err) } diff --git a/src/path/filepath/match_test.go b/src/path/filepath/match_test.go index 1c3b567fa3..48880ea439 100644 --- a/src/path/filepath/match_test.go +++ b/src/path/filepath/match_test.go @@ -7,7 +7,6 @@ package filepath_test import ( "fmt" "internal/testenv" - "io/ioutil" "os" . "path/filepath" "reflect" @@ -182,7 +181,7 @@ var globSymlinkTests = []struct { func TestGlobSymlink(t *testing.T) { testenv.MustHaveSymlink(t) - tmpDir, err := ioutil.TempDir("", "globsymlink") + tmpDir, err := os.MkdirTemp("", "globsymlink") if err != nil { t.Fatal("creating temp dir:", err) } @@ -268,7 +267,7 @@ func TestWindowsGlob(t *testing.T) { t.Skipf("skipping windows specific test") } - tmpDir, err := ioutil.TempDir("", "TestWindowsGlob") + tmpDir, err := os.MkdirTemp("", "TestWindowsGlob") if err != nil { t.Fatal(err) } @@ -302,7 +301,7 @@ func TestWindowsGlob(t *testing.T) { } } for _, file := range files { - err := ioutil.WriteFile(Join(tmpDir, file), nil, 0666) + err := os.WriteFile(Join(tmpDir, file), nil, 0666) if err != nil { t.Fatal(err) } diff --git a/src/path/filepath/path_test.go b/src/path/filepath/path_test.go index d760530e26..8616256ac0 100644 --- a/src/path/filepath/path_test.go +++ b/src/path/filepath/path_test.go @@ -9,7 +9,6 @@ import ( "fmt" "internal/testenv" "io/fs" - "io/ioutil" "os" "path/filepath" "reflect" @@ -416,7 +415,7 @@ func chtmpdir(t *testing.T) (restore func()) { if err != nil { t.Fatalf("chtmpdir: %v", err) } - d, err := ioutil.TempDir("", "test") + d, err := os.MkdirTemp("", "test") if err != nil { t.Fatalf("chtmpdir: %v", err) } @@ -459,7 +458,7 @@ func testWalk(t *testing.T, walk func(string, fs.WalkDirFunc) error, errVisit in defer restore() } - tmpDir, err := ioutil.TempDir("", "TestWalk") + tmpDir, err := os.MkdirTemp("", "TestWalk") if err != nil { t.Fatal("creating temp dir:", err) } @@ -563,7 +562,7 @@ func touch(t *testing.T, name string) { } func TestWalkSkipDirOnFile(t *testing.T) { - td, err := ioutil.TempDir("", "walktest") + td, err := os.MkdirTemp("", "walktest") if err != nil { t.Fatal(err) } @@ -613,7 +612,7 @@ func TestWalkSkipDirOnFile(t *testing.T) { } func TestWalkFileError(t *testing.T) { - td, err := ioutil.TempDir("", "walktest") + td, err := os.MkdirTemp("", "walktest") if err != nil { t.Fatal(err) } @@ -892,7 +891,7 @@ func testEvalSymlinksAfterChdir(t *testing.T, wd, path, want string) { func TestEvalSymlinks(t *testing.T) { testenv.MustHaveSymlink(t) - tmpDir, err := ioutil.TempDir("", "evalsymlink") + tmpDir, err := os.MkdirTemp("", "evalsymlink") if err != nil { t.Fatal("creating temp dir:", err) } @@ -978,7 +977,7 @@ func TestEvalSymlinksIsNotExist(t *testing.T) { func TestIssue13582(t *testing.T) { testenv.MustHaveSymlink(t) - tmpDir, err := ioutil.TempDir("", "issue13582") + tmpDir, err := os.MkdirTemp("", "issue13582") if err != nil { t.Fatal(err) } @@ -995,7 +994,7 @@ func TestIssue13582(t *testing.T) { t.Fatal(err) } file := filepath.Join(linkToDir, "file") - err = ioutil.WriteFile(file, nil, 0644) + err = os.WriteFile(file, nil, 0644) if err != nil { t.Fatal(err) } @@ -1065,7 +1064,7 @@ var absTests = []string{ } func TestAbs(t *testing.T) { - root, err := ioutil.TempDir("", "TestAbs") + root, err := os.MkdirTemp("", "TestAbs") if err != nil { t.Fatal("TempDir failed: ", err) } @@ -1136,7 +1135,7 @@ func TestAbs(t *testing.T) { // We test it separately from all other absTests because the empty string is not // a valid path, so it can't be used with os.Stat. func TestAbsEmptyString(t *testing.T) { - root, err := ioutil.TempDir("", "TestAbsEmptyString") + root, err := os.MkdirTemp("", "TestAbsEmptyString") if err != nil { t.Fatal("TempDir failed: ", err) } @@ -1357,7 +1356,7 @@ func TestBug3486(t *testing.T) { // https://golang.org/issue/3486 } func testWalkSymlink(t *testing.T, mklink func(target, link string) error) { - tmpdir, err := ioutil.TempDir("", "testWalkSymlink") + tmpdir, err := os.MkdirTemp("", "testWalkSymlink") if err != nil { t.Fatal(err) } @@ -1407,14 +1406,14 @@ func TestWalkSymlink(t *testing.T) { } func TestIssue29372(t *testing.T) { - tmpDir, err := ioutil.TempDir("", "TestIssue29372") + tmpDir, err := os.MkdirTemp("", "TestIssue29372") if err != nil { t.Fatal(err) } defer os.RemoveAll(tmpDir) path := filepath.Join(tmpDir, "file.txt") - err = ioutil.WriteFile(path, nil, 0644) + err = os.WriteFile(path, nil, 0644) if err != nil { t.Fatal(err) } @@ -1443,7 +1442,7 @@ func TestEvalSymlinksAboveRoot(t *testing.T) { t.Parallel() - tmpDir, err := ioutil.TempDir("", "TestEvalSymlinksAboveRoot") + tmpDir, err := os.MkdirTemp("", "TestEvalSymlinksAboveRoot") if err != nil { t.Fatal(err) } @@ -1460,7 +1459,7 @@ func TestEvalSymlinksAboveRoot(t *testing.T) { if err := os.Symlink(filepath.Join(evalTmpDir, "a"), filepath.Join(evalTmpDir, "b")); err != nil { t.Fatal(err) } - if err := ioutil.WriteFile(filepath.Join(evalTmpDir, "a", "file"), nil, 0666); err != nil { + if err := os.WriteFile(filepath.Join(evalTmpDir, "a", "file"), nil, 0666); err != nil { t.Fatal(err) } @@ -1491,7 +1490,7 @@ func TestEvalSymlinksAboveRoot(t *testing.T) { func TestEvalSymlinksAboveRootChdir(t *testing.T) { testenv.MustHaveSymlink(t) - tmpDir, err := ioutil.TempDir("", "TestEvalSymlinksAboveRootChdir") + tmpDir, err := os.MkdirTemp("", "TestEvalSymlinksAboveRootChdir") if err != nil { t.Fatal(err) } @@ -1514,7 +1513,7 @@ func TestEvalSymlinksAboveRootChdir(t *testing.T) { if err := os.Symlink(subdir, "c"); err != nil { t.Fatal(err) } - if err := ioutil.WriteFile(filepath.Join(subdir, "file"), nil, 0666); err != nil { + if err := os.WriteFile(filepath.Join(subdir, "file"), nil, 0666); err != nil { t.Fatal(err) } diff --git a/src/path/filepath/path_windows_test.go b/src/path/filepath/path_windows_test.go index 9309a7dc4d..1c3d84c62d 100644 --- a/src/path/filepath/path_windows_test.go +++ b/src/path/filepath/path_windows_test.go @@ -9,7 +9,6 @@ import ( "fmt" "internal/testenv" "io/fs" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -38,7 +37,7 @@ func testWinSplitListTestIsValid(t *testing.T, ti int, tt SplitListTest, perm fs.FileMode = 0700 ) - tmp, err := ioutil.TempDir("", "testWinSplitListTestIsValid") + tmp, err := os.MkdirTemp("", "testWinSplitListTestIsValid") if err != nil { t.Fatalf("TempDir failed: %v", err) } @@ -63,7 +62,7 @@ func testWinSplitListTestIsValid(t *testing.T, ti int, tt SplitListTest, return } fn, data := filepath.Join(dd, cmdfile), []byte("@echo "+d+"\r\n") - if err = ioutil.WriteFile(fn, data, perm); err != nil { + if err = os.WriteFile(fn, data, perm); err != nil { t.Errorf("%d,%d: WriteFile(%#q) failed: %v", ti, i, fn, err) return } @@ -104,7 +103,7 @@ func testWinSplitListTestIsValid(t *testing.T, ti int, tt SplitListTest, func TestWindowsEvalSymlinks(t *testing.T) { testenv.MustHaveSymlink(t) - tmpDir, err := ioutil.TempDir("", "TestWindowsEvalSymlinks") + tmpDir, err := os.MkdirTemp("", "TestWindowsEvalSymlinks") if err != nil { t.Fatal(err) } @@ -162,13 +161,13 @@ func TestWindowsEvalSymlinks(t *testing.T) { // TestEvalSymlinksCanonicalNames verify that EvalSymlinks // returns "canonical" path names on windows. func TestEvalSymlinksCanonicalNames(t *testing.T) { - tmp, err := ioutil.TempDir("", "evalsymlinkcanonical") + tmp, err := os.MkdirTemp("", "evalsymlinkcanonical") if err != nil { t.Fatal("creating temp dir:", err) } defer os.RemoveAll(tmp) - // ioutil.TempDir might return "non-canonical" name. + // os.MkdirTemp might return "non-canonical" name. cTmpName, err := filepath.EvalSymlinks(tmp) if err != nil { t.Errorf("EvalSymlinks(%q) error: %v", tmp, err) @@ -418,7 +417,7 @@ func TestToNorm(t *testing.T) { {".", `\\localhost\c$`, `\\localhost\c$`}, } - tmp, err := ioutil.TempDir("", "testToNorm") + tmp, err := os.MkdirTemp("", "testToNorm") if err != nil { t.Fatal(err) } @@ -429,7 +428,7 @@ func TestToNorm(t *testing.T) { } }() - // ioutil.TempDir might return "non-canonical" name. + // os.MkdirTemp might return "non-canonical" name. ctmp, err := filepath.EvalSymlinks(tmp) if err != nil { t.Fatal(err) @@ -527,7 +526,7 @@ func TestNTNamespaceSymlink(t *testing.T) { t.Skip("skipping test because mklink command does not support junctions") } - tmpdir, err := ioutil.TempDir("", "TestNTNamespaceSymlink") + tmpdir, err := os.MkdirTemp("", "TestNTNamespaceSymlink") if err != nil { t.Fatal(err) } @@ -564,7 +563,7 @@ func TestNTNamespaceSymlink(t *testing.T) { testenv.MustHaveSymlink(t) file := filepath.Join(tmpdir, "file") - err = ioutil.WriteFile(file, []byte(""), 0666) + err = os.WriteFile(file, []byte(""), 0666) if err != nil { t.Fatal(err) } diff --git a/src/runtime/crash_test.go b/src/runtime/crash_test.go index 5e22b7593e..58ad4f3eba 100644 --- a/src/runtime/crash_test.go +++ b/src/runtime/crash_test.go @@ -9,7 +9,6 @@ import ( "flag" "fmt" "internal/testenv" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -117,7 +116,7 @@ func buildTestProg(t *testing.T, binary string, flags ...string) (string, error) testprog.Lock() defer testprog.Unlock() if testprog.dir == "" { - dir, err := ioutil.TempDir("", "go-build") + dir, err := os.MkdirTemp("", "go-build") if err != nil { t.Fatalf("failed to create temp directory: %v", err) } diff --git a/src/runtime/crash_unix_test.go b/src/runtime/crash_unix_test.go index ebbdbfe5b9..803b031873 100644 --- a/src/runtime/crash_unix_test.go +++ b/src/runtime/crash_unix_test.go @@ -10,7 +10,6 @@ import ( "bytes" "internal/testenv" "io" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -85,13 +84,13 @@ func TestCrashDumpsAllThreads(t *testing.T) { t.Parallel() - dir, err := ioutil.TempDir("", "go-build") + dir, err := os.MkdirTemp("", "go-build") if err != nil { t.Fatalf("failed to create temp directory: %v", err) } defer os.RemoveAll(dir) - if err := ioutil.WriteFile(filepath.Join(dir, "main.go"), []byte(crashDumpsAllThreadsSource), 0666); err != nil { + if err := os.WriteFile(filepath.Join(dir, "main.go"), []byte(crashDumpsAllThreadsSource), 0666); err != nil { t.Fatalf("failed to create Go file: %v", err) } diff --git a/src/runtime/debug/heapdump_test.go b/src/runtime/debug/heapdump_test.go index de1ec27d21..768934d05d 100644 --- a/src/runtime/debug/heapdump_test.go +++ b/src/runtime/debug/heapdump_test.go @@ -5,7 +5,6 @@ package debug_test import ( - "io/ioutil" "os" "runtime" . "runtime/debug" @@ -16,7 +15,7 @@ func TestWriteHeapDumpNonempty(t *testing.T) { if runtime.GOOS == "js" { t.Skipf("WriteHeapDump is not available on %s.", runtime.GOOS) } - f, err := ioutil.TempFile("", "heapdumptest") + f, err := os.CreateTemp("", "heapdumptest") if err != nil { t.Fatalf("TempFile failed: %v", err) } @@ -45,7 +44,7 @@ func TestWriteHeapDumpFinalizers(t *testing.T) { if runtime.GOOS == "js" { t.Skipf("WriteHeapDump is not available on %s.", runtime.GOOS) } - f, err := ioutil.TempFile("", "heapdumptest") + f, err := os.CreateTemp("", "heapdumptest") if err != nil { t.Fatalf("TempFile failed: %v", err) } diff --git a/src/runtime/debug_test.go b/src/runtime/debug_test.go index 722e81121f..a0b3f84382 100644 --- a/src/runtime/debug_test.go +++ b/src/runtime/debug_test.go @@ -17,7 +17,7 @@ package runtime_test import ( "fmt" - "io/ioutil" + "os" "regexp" "runtime" "runtime/debug" @@ -95,7 +95,7 @@ func debugCallTKill(tid int) error { // Linux-specific. func skipUnderDebugger(t *testing.T) { pid := syscall.Getpid() - status, err := ioutil.ReadFile(fmt.Sprintf("/proc/%d/status", pid)) + status, err := os.ReadFile(fmt.Sprintf("/proc/%d/status", pid)) if err != nil { t.Logf("couldn't get proc tracer: %s", err) return diff --git a/src/runtime/env_plan9.go b/src/runtime/env_plan9.go index b7ea863735..f1ac4760a7 100644 --- a/src/runtime/env_plan9.go +++ b/src/runtime/env_plan9.go @@ -23,8 +23,8 @@ const ( // to the (possibly shared) Plan 9 environment, so that Setenv and Getenv // conform to the same Posix semantics as on other operating systems. // For Plan 9 shared environment semantics, instead of Getenv(key) and -// Setenv(key, value), one can use ioutil.ReadFile("/env/" + key) and -// ioutil.WriteFile("/env/" + key, value, 0666) respectively. +// Setenv(key, value), one can use os.ReadFile("/env/" + key) and +// os.WriteFile("/env/" + key, value, 0666) respectively. //go:nosplit func goenvs() { buf := make([]byte, envBufSize) diff --git a/src/runtime/internal/sys/gengoos.go b/src/runtime/internal/sys/gengoos.go index 2a4bf0c3b4..9bbc48d94f 100644 --- a/src/runtime/internal/sys/gengoos.go +++ b/src/runtime/internal/sys/gengoos.go @@ -9,8 +9,8 @@ package main import ( "bytes" "fmt" - "io/ioutil" "log" + "os" "strconv" "strings" ) @@ -18,7 +18,7 @@ import ( var gooses, goarches []string func main() { - data, err := ioutil.ReadFile("../../../go/build/syslist.go") + data, err := os.ReadFile("../../../go/build/syslist.go") if err != nil { log.Fatal(err) } @@ -68,7 +68,7 @@ func main() { } fmt.Fprintf(&buf, "const Goos%s = %d\n", strings.Title(goos), value) } - err := ioutil.WriteFile("zgoos_"+target+".go", buf.Bytes(), 0666) + err := os.WriteFile("zgoos_"+target+".go", buf.Bytes(), 0666) if err != nil { log.Fatal(err) } @@ -90,7 +90,7 @@ func main() { } fmt.Fprintf(&buf, "const Goarch%s = %d\n", strings.Title(goarch), value) } - err := ioutil.WriteFile("zgoarch_"+target+".go", buf.Bytes(), 0666) + err := os.WriteFile("zgoarch_"+target+".go", buf.Bytes(), 0666) if err != nil { log.Fatal(err) } diff --git a/src/runtime/memmove_linux_amd64_test.go b/src/runtime/memmove_linux_amd64_test.go index d0e8b42a5a..b3ccd907b9 100644 --- a/src/runtime/memmove_linux_amd64_test.go +++ b/src/runtime/memmove_linux_amd64_test.go @@ -5,7 +5,6 @@ package runtime_test import ( - "io/ioutil" "os" "reflect" "syscall" @@ -18,7 +17,7 @@ import ( func TestMemmoveOverflow(t *testing.T) { t.Parallel() // Create a temporary file. - tmp, err := ioutil.TempFile("", "go-memmovetest") + tmp, err := os.CreateTemp("", "go-memmovetest") if err != nil { t.Fatal(err) } diff --git a/src/runtime/mkduff.go b/src/runtime/mkduff.go index 6ddf0256e9..94ae75fbfe 100644 --- a/src/runtime/mkduff.go +++ b/src/runtime/mkduff.go @@ -27,8 +27,8 @@ import ( "bytes" "fmt" "io" - "io/ioutil" "log" + "os" ) func main() { @@ -54,7 +54,7 @@ func gen(arch string, tags, zero, copy func(io.Writer)) { fmt.Fprintln(&buf) copy(&buf) - if err := ioutil.WriteFile("duff_"+arch+".s", buf.Bytes(), 0644); err != nil { + if err := os.WriteFile("duff_"+arch+".s", buf.Bytes(), 0644); err != nil { log.Fatalln(err) } } diff --git a/src/runtime/mkfastlog2table.go b/src/runtime/mkfastlog2table.go index 305c84a7c1..d650292394 100644 --- a/src/runtime/mkfastlog2table.go +++ b/src/runtime/mkfastlog2table.go @@ -12,9 +12,9 @@ package main import ( "bytes" "fmt" - "io/ioutil" "log" "math" + "os" ) func main() { @@ -36,7 +36,7 @@ func main() { } fmt.Fprintln(&buf, "}") - if err := ioutil.WriteFile("fastlog2table.go", buf.Bytes(), 0644); err != nil { + if err := os.WriteFile("fastlog2table.go", buf.Bytes(), 0644); err != nil { log.Fatalln(err) } } diff --git a/src/runtime/mksizeclasses.go b/src/runtime/mksizeclasses.go index 1a210953a4..b92d1fed5f 100644 --- a/src/runtime/mksizeclasses.go +++ b/src/runtime/mksizeclasses.go @@ -35,7 +35,6 @@ import ( "fmt" "go/format" "io" - "io/ioutil" "log" "os" ) @@ -65,7 +64,7 @@ func main() { if *stdout { _, err = os.Stdout.Write(out) } else { - err = ioutil.WriteFile("sizeclasses.go", out, 0666) + err = os.WriteFile("sizeclasses.go", out, 0666) } if err != nil { log.Fatal(err) diff --git a/src/runtime/pprof/pprof_test.go b/src/runtime/pprof/pprof_test.go index b807072485..b6ee160e84 100644 --- a/src/runtime/pprof/pprof_test.go +++ b/src/runtime/pprof/pprof_test.go @@ -13,7 +13,6 @@ import ( "internal/profile" "internal/testenv" "io" - "io/ioutil" "math/big" "os" "os/exec" @@ -1179,7 +1178,7 @@ func TestLabelRace(t *testing.T) { // Check that there is no deadlock when the program receives SIGPROF while in // 64bit atomics' critical section. Used to happen on mips{,le}. See #20146. func TestAtomicLoadStore64(t *testing.T) { - f, err := ioutil.TempFile("", "profatomic") + f, err := os.CreateTemp("", "profatomic") if err != nil { t.Fatalf("TempFile: %v", err) } @@ -1208,7 +1207,7 @@ func TestAtomicLoadStore64(t *testing.T) { func TestTracebackAll(t *testing.T) { // With gccgo, if a profiling signal arrives at the wrong time // during traceback, it may crash or hang. See issue #29448. - f, err := ioutil.TempFile("", "proftraceback") + f, err := os.CreateTemp("", "proftraceback") if err != nil { t.Fatalf("TempFile: %v", err) } diff --git a/src/runtime/pprof/proto.go b/src/runtime/pprof/proto.go index 8519af6985..bdb4454b6e 100644 --- a/src/runtime/pprof/proto.go +++ b/src/runtime/pprof/proto.go @@ -9,7 +9,7 @@ import ( "compress/gzip" "fmt" "io" - "io/ioutil" + "os" "runtime" "strconv" "time" @@ -575,7 +575,7 @@ func (b *profileBuilder) emitLocation() uint64 { // It saves the address ranges of the mappings in b.mem for use // when emitting locations. func (b *profileBuilder) readMapping() { - data, _ := ioutil.ReadFile("/proc/self/maps") + data, _ := os.ReadFile("/proc/self/maps") parseProcSelfMaps(data, b.addMapping) if len(b.mem) == 0 { // pprof expects a map entry, so fake one. b.addMappingEntry(0, 0, 0, "", "", true) diff --git a/src/runtime/pprof/proto_test.go b/src/runtime/pprof/proto_test.go index 3043d5353f..5eb1aab140 100644 --- a/src/runtime/pprof/proto_test.go +++ b/src/runtime/pprof/proto_test.go @@ -10,7 +10,6 @@ import ( "fmt" "internal/profile" "internal/testenv" - "io/ioutil" "os" "os/exec" "reflect" @@ -78,7 +77,7 @@ func testPCs(t *testing.T) (addr1, addr2 uint64, map1, map2 *profile.Mapping) { switch runtime.GOOS { case "linux", "android", "netbsd": // Figure out two addresses from /proc/self/maps. - mmap, err := ioutil.ReadFile("/proc/self/maps") + mmap, err := os.ReadFile("/proc/self/maps") if err != nil { t.Fatal(err) } diff --git a/src/runtime/race/output_test.go b/src/runtime/race/output_test.go index 5d0192f67f..986667332f 100644 --- a/src/runtime/race/output_test.go +++ b/src/runtime/race/output_test.go @@ -8,7 +8,6 @@ package race_test import ( "internal/testenv" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -19,7 +18,7 @@ import ( ) func TestOutput(t *testing.T) { - pkgdir, err := ioutil.TempDir("", "go-build-race-output") + pkgdir, err := os.MkdirTemp("", "go-build-race-output") if err != nil { t.Fatal(err) } @@ -34,7 +33,7 @@ func TestOutput(t *testing.T) { t.Logf("test %v runs only on %v, skipping: ", test.name, test.goos) continue } - dir, err := ioutil.TempDir("", "go-build") + dir, err := os.MkdirTemp("", "go-build") if err != nil { t.Fatalf("failed to create temp directory: %v", err) } diff --git a/src/runtime/race/testdata/io_test.go b/src/runtime/race/testdata/io_test.go index 30a121bee4..c5055f7837 100644 --- a/src/runtime/race/testdata/io_test.go +++ b/src/runtime/race/testdata/io_test.go @@ -6,7 +6,6 @@ package race_test import ( "fmt" - "io/ioutil" "net" "net/http" "os" @@ -18,7 +17,7 @@ import ( func TestNoRaceIOFile(t *testing.T) { x := 0 - path, _ := ioutil.TempDir("", "race_test") + path, _ := os.MkdirTemp("", "race_test") fname := filepath.Join(path, "data") go func() { x = 42 diff --git a/src/runtime/runtime-gdb_test.go b/src/runtime/runtime-gdb_test.go index e52bd1c4c4..5df8c3c745 100644 --- a/src/runtime/runtime-gdb_test.go +++ b/src/runtime/runtime-gdb_test.go @@ -8,7 +8,6 @@ import ( "bytes" "fmt" "internal/testenv" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -170,7 +169,7 @@ func testGdbPython(t *testing.T, cgo bool) { checkGdbVersion(t) checkGdbPython(t) - dir, err := ioutil.TempDir("", "go-build") + dir, err := os.MkdirTemp("", "go-build") if err != nil { t.Fatalf("failed to create temp directory: %v", err) } @@ -195,7 +194,7 @@ func testGdbPython(t *testing.T, cgo bool) { } } - err = ioutil.WriteFile(filepath.Join(dir, "main.go"), src, 0644) + err = os.WriteFile(filepath.Join(dir, "main.go"), src, 0644) if err != nil { t.Fatalf("failed to create file: %v", err) } @@ -404,7 +403,7 @@ func TestGdbBacktrace(t *testing.T) { t.Parallel() checkGdbVersion(t) - dir, err := ioutil.TempDir("", "go-build") + dir, err := os.MkdirTemp("", "go-build") if err != nil { t.Fatalf("failed to create temp directory: %v", err) } @@ -412,7 +411,7 @@ func TestGdbBacktrace(t *testing.T) { // Build the source code. src := filepath.Join(dir, "main.go") - err = ioutil.WriteFile(src, []byte(backtraceSource), 0644) + err = os.WriteFile(src, []byte(backtraceSource), 0644) if err != nil { t.Fatalf("failed to create file: %v", err) } @@ -482,7 +481,7 @@ func TestGdbAutotmpTypes(t *testing.T) { t.Skip("TestGdbAutotmpTypes is too slow on aix/ppc64") } - dir, err := ioutil.TempDir("", "go-build") + dir, err := os.MkdirTemp("", "go-build") if err != nil { t.Fatalf("failed to create temp directory: %v", err) } @@ -490,7 +489,7 @@ func TestGdbAutotmpTypes(t *testing.T) { // Build the source code. src := filepath.Join(dir, "main.go") - err = ioutil.WriteFile(src, []byte(autotmpTypeSource), 0644) + err = os.WriteFile(src, []byte(autotmpTypeSource), 0644) if err != nil { t.Fatalf("failed to create file: %v", err) } @@ -551,7 +550,7 @@ func TestGdbConst(t *testing.T) { t.Parallel() checkGdbVersion(t) - dir, err := ioutil.TempDir("", "go-build") + dir, err := os.MkdirTemp("", "go-build") if err != nil { t.Fatalf("failed to create temp directory: %v", err) } @@ -559,7 +558,7 @@ func TestGdbConst(t *testing.T) { // Build the source code. src := filepath.Join(dir, "main.go") - err = ioutil.WriteFile(src, []byte(constsSource), 0644) + err = os.WriteFile(src, []byte(constsSource), 0644) if err != nil { t.Fatalf("failed to create file: %v", err) } @@ -618,7 +617,7 @@ func TestGdbPanic(t *testing.T) { t.Parallel() checkGdbVersion(t) - dir, err := ioutil.TempDir("", "go-build") + dir, err := os.MkdirTemp("", "go-build") if err != nil { t.Fatalf("failed to create temp directory: %v", err) } @@ -626,7 +625,7 @@ func TestGdbPanic(t *testing.T) { // Build the source code. src := filepath.Join(dir, "main.go") - err = ioutil.WriteFile(src, []byte(panicSource), 0644) + err = os.WriteFile(src, []byte(panicSource), 0644) if err != nil { t.Fatalf("failed to create file: %v", err) } @@ -696,7 +695,7 @@ func TestGdbInfCallstack(t *testing.T) { t.Parallel() checkGdbVersion(t) - dir, err := ioutil.TempDir("", "go-build") + dir, err := os.MkdirTemp("", "go-build") if err != nil { t.Fatalf("failed to create temp directory: %v", err) } @@ -704,7 +703,7 @@ func TestGdbInfCallstack(t *testing.T) { // Build the source code. src := filepath.Join(dir, "main.go") - err = ioutil.WriteFile(src, []byte(InfCallstackSource), 0644) + err = os.WriteFile(src, []byte(InfCallstackSource), 0644) if err != nil { t.Fatalf("failed to create file: %v", err) } diff --git a/src/runtime/runtime-lldb_test.go b/src/runtime/runtime-lldb_test.go index 1e2e5d5be9..c923b872aa 100644 --- a/src/runtime/runtime-lldb_test.go +++ b/src/runtime/runtime-lldb_test.go @@ -6,7 +6,6 @@ package runtime_test import ( "internal/testenv" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -143,20 +142,20 @@ func TestLldbPython(t *testing.T) { checkLldbPython(t) - dir, err := ioutil.TempDir("", "go-build") + dir, err := os.MkdirTemp("", "go-build") if err != nil { t.Fatalf("failed to create temp directory: %v", err) } defer os.RemoveAll(dir) src := filepath.Join(dir, "main.go") - err = ioutil.WriteFile(src, []byte(lldbHelloSource), 0644) + err = os.WriteFile(src, []byte(lldbHelloSource), 0644) if err != nil { t.Fatalf("failed to create src file: %v", err) } mod := filepath.Join(dir, "go.mod") - err = ioutil.WriteFile(mod, []byte("module lldbtest"), 0644) + err = os.WriteFile(mod, []byte("module lldbtest"), 0644) if err != nil { t.Fatalf("failed to create mod file: %v", err) } @@ -172,7 +171,7 @@ func TestLldbPython(t *testing.T) { } src = filepath.Join(dir, "script.py") - err = ioutil.WriteFile(src, []byte(lldbScriptSource), 0755) + err = os.WriteFile(src, []byte(lldbScriptSource), 0755) if err != nil { t.Fatalf("failed to create script: %v", err) } diff --git a/src/runtime/signal_windows_test.go b/src/runtime/signal_windows_test.go index f99857193c..a5a885c2f7 100644 --- a/src/runtime/signal_windows_test.go +++ b/src/runtime/signal_windows_test.go @@ -7,7 +7,6 @@ import ( "bytes" "fmt" "internal/testenv" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -28,7 +27,7 @@ func TestVectoredHandlerDontCrashOnLibrary(t *testing.T) { testenv.MustHaveExecPath(t, "gcc") testprog.Lock() defer testprog.Unlock() - dir, err := ioutil.TempDir("", "go-build") + dir, err := os.MkdirTemp("", "go-build") if err != nil { t.Fatalf("failed to create temp directory: %v", err) } @@ -93,7 +92,7 @@ func TestLibraryCtrlHandler(t *testing.T) { testenv.MustHaveExecPath(t, "gcc") testprog.Lock() defer testprog.Unlock() - dir, err := ioutil.TempDir("", "go-build") + dir, err := os.MkdirTemp("", "go-build") if err != nil { t.Fatalf("failed to create temp directory: %v", err) } diff --git a/src/runtime/syscall_windows_test.go b/src/runtime/syscall_windows_test.go index a20573eb6a..fb215b3c31 100644 --- a/src/runtime/syscall_windows_test.go +++ b/src/runtime/syscall_windows_test.go @@ -10,7 +10,6 @@ import ( "internal/syscall/windows/sysdll" "internal/testenv" "io" - "io/ioutil" "math" "os" "os/exec" @@ -446,7 +445,7 @@ func TestStdcallAndCDeclCallbacks(t *testing.T) { if _, err := exec.LookPath("gcc"); err != nil { t.Skip("skipping test: gcc is missing") } - tmp, err := ioutil.TempDir("", "TestCDeclCallback") + tmp, err := os.MkdirTemp("", "TestCDeclCallback") if err != nil { t.Fatal("TempDir failed: ", err) } @@ -602,14 +601,14 @@ uintptr_t cfunc(callback f, uintptr_t n) { return r; } ` - tmpdir, err := ioutil.TempDir("", "TestReturnAfterStackGrowInCallback") + tmpdir, err := os.MkdirTemp("", "TestReturnAfterStackGrowInCallback") if err != nil { t.Fatal("TempDir failed: ", err) } defer os.RemoveAll(tmpdir) srcname := "mydll.c" - err = ioutil.WriteFile(filepath.Join(tmpdir, srcname), []byte(src), 0) + err = os.WriteFile(filepath.Join(tmpdir, srcname), []byte(src), 0) if err != nil { t.Fatal(err) } @@ -671,14 +670,14 @@ uintptr_t cfunc(uintptr_t a, double b, float c, double d) { return 0; } ` - tmpdir, err := ioutil.TempDir("", "TestFloatArgs") + tmpdir, err := os.MkdirTemp("", "TestFloatArgs") if err != nil { t.Fatal("TempDir failed: ", err) } defer os.RemoveAll(tmpdir) srcname := "mydll.c" - err = ioutil.WriteFile(filepath.Join(tmpdir, srcname), []byte(src), 0) + err = os.WriteFile(filepath.Join(tmpdir, srcname), []byte(src), 0) if err != nil { t.Fatal(err) } @@ -733,14 +732,14 @@ double cfuncDouble(uintptr_t a, double b, float c, double d) { return 0; } ` - tmpdir, err := ioutil.TempDir("", "TestFloatReturn") + tmpdir, err := os.MkdirTemp("", "TestFloatReturn") if err != nil { t.Fatal("TempDir failed: ", err) } defer os.RemoveAll(tmpdir) srcname := "mydll.c" - err = ioutil.WriteFile(filepath.Join(tmpdir, srcname), []byte(src), 0) + err = os.WriteFile(filepath.Join(tmpdir, srcname), []byte(src), 0) if err != nil { t.Fatal(err) } @@ -948,7 +947,7 @@ func TestDLLPreloadMitigation(t *testing.T) { t.Skip("skipping test: gcc is missing") } - tmpdir, err := ioutil.TempDir("", "TestDLLPreloadMitigation") + tmpdir, err := os.MkdirTemp("", "TestDLLPreloadMitigation") if err != nil { t.Fatal("TempDir failed: ", err) } @@ -975,7 +974,7 @@ uintptr_t cfunc(void) { } ` srcname := "nojack.c" - err = ioutil.WriteFile(filepath.Join(tmpdir, srcname), []byte(src), 0) + err = os.WriteFile(filepath.Join(tmpdir, srcname), []byte(src), 0) if err != nil { t.Fatal(err) } @@ -1035,7 +1034,7 @@ func TestBigStackCallbackSyscall(t *testing.T) { t.Fatal("Abs failed: ", err) } - tmpdir, err := ioutil.TempDir("", "TestBigStackCallback") + tmpdir, err := os.MkdirTemp("", "TestBigStackCallback") if err != nil { t.Fatal("TempDir failed: ", err) } @@ -1184,14 +1183,14 @@ func BenchmarkOsYield(b *testing.B) { } func BenchmarkRunningGoProgram(b *testing.B) { - tmpdir, err := ioutil.TempDir("", "BenchmarkRunningGoProgram") + tmpdir, err := os.MkdirTemp("", "BenchmarkRunningGoProgram") if err != nil { b.Fatal(err) } defer os.RemoveAll(tmpdir) src := filepath.Join(tmpdir, "main.go") - err = ioutil.WriteFile(src, []byte(benchmarkRunningGoProgram), 0666) + err = os.WriteFile(src, []byte(benchmarkRunningGoProgram), 0666) if err != nil { b.Fatal(err) } diff --git a/src/runtime/testdata/testprog/memprof.go b/src/runtime/testdata/testprog/memprof.go index 7b134bc078..0392e60f84 100644 --- a/src/runtime/testdata/testprog/memprof.go +++ b/src/runtime/testdata/testprog/memprof.go @@ -7,7 +7,6 @@ package main import ( "bytes" "fmt" - "io/ioutil" "os" "runtime" "runtime/pprof" @@ -31,7 +30,7 @@ func MemProf() { runtime.GC() - f, err := ioutil.TempFile("", "memprof") + f, err := os.CreateTemp("", "memprof") if err != nil { fmt.Fprintln(os.Stderr, err) os.Exit(2) diff --git a/src/runtime/testdata/testprog/syscalls_linux.go b/src/runtime/testdata/testprog/syscalls_linux.go index b8ac087626..48f8014237 100644 --- a/src/runtime/testdata/testprog/syscalls_linux.go +++ b/src/runtime/testdata/testprog/syscalls_linux.go @@ -7,7 +7,6 @@ package main import ( "bytes" "fmt" - "io/ioutil" "os" "syscall" ) @@ -17,7 +16,7 @@ func gettid() int { } func tidExists(tid int) (exists, supported bool) { - stat, err := ioutil.ReadFile(fmt.Sprintf("/proc/self/task/%d/stat", tid)) + stat, err := os.ReadFile(fmt.Sprintf("/proc/self/task/%d/stat", tid)) if os.IsNotExist(err) { return false, true } diff --git a/src/runtime/testdata/testprog/timeprof.go b/src/runtime/testdata/testprog/timeprof.go index 0702885369..1e90af4033 100644 --- a/src/runtime/testdata/testprog/timeprof.go +++ b/src/runtime/testdata/testprog/timeprof.go @@ -6,7 +6,6 @@ package main import ( "fmt" - "io/ioutil" "os" "runtime/pprof" "time" @@ -17,7 +16,7 @@ func init() { } func TimeProf() { - f, err := ioutil.TempFile("", "timeprof") + f, err := os.CreateTemp("", "timeprof") if err != nil { fmt.Fprintln(os.Stderr, err) os.Exit(2) diff --git a/src/runtime/testdata/testprog/vdso.go b/src/runtime/testdata/testprog/vdso.go index ef92f48758..d2a300d8f2 100644 --- a/src/runtime/testdata/testprog/vdso.go +++ b/src/runtime/testdata/testprog/vdso.go @@ -8,7 +8,6 @@ package main import ( "fmt" - "io/ioutil" "os" "runtime/pprof" "time" @@ -19,7 +18,7 @@ func init() { } func signalInVDSO() { - f, err := ioutil.TempFile("", "timeprofnow") + f, err := os.CreateTemp("", "timeprofnow") if err != nil { fmt.Fprintln(os.Stderr, err) os.Exit(2) diff --git a/src/runtime/testdata/testprogcgo/pprof.go b/src/runtime/testdata/testprogcgo/pprof.go index 00f2c42e93..3b73fa0bdd 100644 --- a/src/runtime/testdata/testprogcgo/pprof.go +++ b/src/runtime/testdata/testprogcgo/pprof.go @@ -60,7 +60,6 @@ import "C" import ( "fmt" - "io/ioutil" "os" "runtime" "runtime/pprof" @@ -75,7 +74,7 @@ func init() { func CgoPprof() { runtime.SetCgoTraceback(0, unsafe.Pointer(C.pprofCgoTraceback), nil, nil) - f, err := ioutil.TempFile("", "prof") + f, err := os.CreateTemp("", "prof") if err != nil { fmt.Fprintln(os.Stderr, err) os.Exit(2) diff --git a/src/runtime/testdata/testprogcgo/threadpprof.go b/src/runtime/testdata/testprogcgo/threadpprof.go index 37a2a1ab65..feb774ba59 100644 --- a/src/runtime/testdata/testprogcgo/threadpprof.go +++ b/src/runtime/testdata/testprogcgo/threadpprof.go @@ -74,7 +74,6 @@ import "C" import ( "fmt" - "io/ioutil" "os" "runtime" "runtime/pprof" @@ -97,7 +96,7 @@ func CgoPprofThreadNoTraceback() { } func pprofThread() { - f, err := ioutil.TempFile("", "prof") + f, err := os.CreateTemp("", "prof") if err != nil { fmt.Fprintln(os.Stderr, err) os.Exit(2) diff --git a/src/runtime/trace/trace_test.go b/src/runtime/trace/trace_test.go index 235845df4e..b316eafe4c 100644 --- a/src/runtime/trace/trace_test.go +++ b/src/runtime/trace/trace_test.go @@ -10,7 +10,6 @@ import ( "internal/race" "internal/trace" "io" - "io/ioutil" "net" "os" "runtime" @@ -586,7 +585,7 @@ func saveTrace(t *testing.T, buf *bytes.Buffer, name string) { if !*saveTraces { return } - if err := ioutil.WriteFile(name+".trace", buf.Bytes(), 0600); err != nil { + if err := os.WriteFile(name+".trace", buf.Bytes(), 0600); err != nil { t.Errorf("failed to write trace file: %s", err) } } diff --git a/src/runtime/wincallback.go b/src/runtime/wincallback.go index c022916422..fb452222da 100644 --- a/src/runtime/wincallback.go +++ b/src/runtime/wincallback.go @@ -11,7 +11,6 @@ package main import ( "bytes" "fmt" - "io/ioutil" "os" ) @@ -38,7 +37,7 @@ TEXT runtime·callbackasm(SB),7,$0 } filename := fmt.Sprintf("zcallback_windows.s") - err := ioutil.WriteFile(filename, buf.Bytes(), 0666) + err := os.WriteFile(filename, buf.Bytes(), 0666) if err != nil { fmt.Fprintf(os.Stderr, "wincallback: %s\n", err) os.Exit(2) @@ -66,7 +65,7 @@ TEXT runtime·callbackasm(SB),NOSPLIT|NOFRAME,$0 buf.WriteString("\tB\truntime·callbackasm1(SB)\n") } - err := ioutil.WriteFile("zcallback_windows_arm.s", buf.Bytes(), 0666) + err := os.WriteFile("zcallback_windows_arm.s", buf.Bytes(), 0666) if err != nil { fmt.Fprintf(os.Stderr, "wincallback: %s\n", err) os.Exit(2) @@ -82,7 +81,7 @@ package runtime const cb_max = %d // maximum number of windows callbacks allowed `, maxCallback)) - err := ioutil.WriteFile("zcallback_windows.go", buf.Bytes(), 0666) + err := os.WriteFile("zcallback_windows.go", buf.Bytes(), 0666) if err != nil { fmt.Fprintf(os.Stderr, "wincallback: %s\n", err) os.Exit(2) diff --git a/src/sort/genzfunc.go b/src/sort/genzfunc.go index 66408d26c6..e7eb573737 100644 --- a/src/sort/genzfunc.go +++ b/src/sort/genzfunc.go @@ -20,8 +20,8 @@ import ( "go/format" "go/parser" "go/token" - "io/ioutil" "log" + "os" "regexp" ) @@ -92,7 +92,7 @@ func main() { out.Write(src) const target = "zfuncversion.go" - if err := ioutil.WriteFile(target, out.Bytes(), 0644); err != nil { + if err := os.WriteFile(target, out.Bytes(), 0644); err != nil { log.Fatal(err) } } diff --git a/src/strconv/makeisprint.go b/src/strconv/makeisprint.go index 1a3248f308..0e6e90a6c6 100644 --- a/src/strconv/makeisprint.go +++ b/src/strconv/makeisprint.go @@ -17,8 +17,8 @@ import ( "flag" "fmt" "go/format" - "io/ioutil" "log" + "os" "unicode" ) @@ -196,7 +196,7 @@ func main() { if err != nil { log.Fatal(err) } - err = ioutil.WriteFile(*filename, data, 0644) + err = os.WriteFile(*filename, data, 0644) if err != nil { log.Fatal(err) } diff --git a/src/syscall/dirent_test.go b/src/syscall/dirent_test.go index f63153340a..7dac98ff4b 100644 --- a/src/syscall/dirent_test.go +++ b/src/syscall/dirent_test.go @@ -9,7 +9,6 @@ package syscall_test import ( "bytes" "fmt" - "io/ioutil" "os" "path/filepath" "runtime" @@ -27,7 +26,7 @@ func TestDirent(t *testing.T) { filenameMinSize = 11 ) - d, err := ioutil.TempDir("", "dirent-test") + d, err := os.MkdirTemp("", "dirent-test") if err != nil { t.Fatalf("tempdir: %v", err) } @@ -36,7 +35,7 @@ func TestDirent(t *testing.T) { for i, c := range []byte("0123456789") { name := string(bytes.Repeat([]byte{c}, filenameMinSize+i)) - err = ioutil.WriteFile(filepath.Join(d, name), nil, 0644) + err = os.WriteFile(filepath.Join(d, name), nil, 0644) if err != nil { t.Fatalf("writefile: %v", err) } @@ -93,7 +92,7 @@ func TestDirentRepeat(t *testing.T) { } // Make a directory containing N files - d, err := ioutil.TempDir("", "direntRepeat-test") + d, err := os.MkdirTemp("", "direntRepeat-test") if err != nil { t.Fatalf("tempdir: %v", err) } @@ -104,7 +103,7 @@ func TestDirentRepeat(t *testing.T) { files = append(files, fmt.Sprintf("file%d", i)) } for _, file := range files { - err = ioutil.WriteFile(filepath.Join(d, file), []byte("contents"), 0644) + err = os.WriteFile(filepath.Join(d, file), []byte("contents"), 0644) if err != nil { t.Fatalf("writefile: %v", err) } diff --git a/src/syscall/exec_linux_test.go b/src/syscall/exec_linux_test.go index b79dee7525..ac3a5754ae 100644 --- a/src/syscall/exec_linux_test.go +++ b/src/syscall/exec_linux_test.go @@ -11,7 +11,6 @@ import ( "fmt" "internal/testenv" "io" - "io/ioutil" "os" "os/exec" "os/user" @@ -65,7 +64,7 @@ func skipNoUserNamespaces(t *testing.T) { func skipUnprivilegedUserClone(t *testing.T) { // Skip the test if the sysctl that prevents unprivileged user // from creating user namespaces is enabled. - data, errRead := ioutil.ReadFile("/proc/sys/kernel/unprivileged_userns_clone") + data, errRead := os.ReadFile("/proc/sys/kernel/unprivileged_userns_clone") if errRead != nil || len(data) < 1 || data[0] == '0' { t.Skip("kernel prohibits user namespace in unprivileged process") } @@ -98,7 +97,7 @@ func checkUserNS(t *testing.T) { // On Centos 7 make sure they set the kernel parameter user_namespace=1 // See issue 16283 and 20796. if _, err := os.Stat("/sys/module/user_namespace/parameters/enable"); err == nil { - buf, _ := ioutil.ReadFile("/sys/module/user_namespace/parameters/enabled") + buf, _ := os.ReadFile("/sys/module/user_namespace/parameters/enabled") if !strings.HasPrefix(string(buf), "Y") { t.Skip("kernel doesn't support user namespaces") } @@ -106,7 +105,7 @@ func checkUserNS(t *testing.T) { // On Centos 7.5+, user namespaces are disabled if user.max_user_namespaces = 0 if _, err := os.Stat("/proc/sys/user/max_user_namespaces"); err == nil { - buf, errRead := ioutil.ReadFile("/proc/sys/user/max_user_namespaces") + buf, errRead := os.ReadFile("/proc/sys/user/max_user_namespaces") if errRead == nil && buf[0] == '0' { t.Skip("kernel doesn't support user namespaces") } @@ -226,7 +225,7 @@ func TestUnshare(t *testing.T) { t.Fatal(err) } - orig, err := ioutil.ReadFile(path) + orig, err := os.ReadFile(path) if err != nil { t.Fatal(err) } @@ -349,7 +348,7 @@ func TestUnshareMountNameSpace(t *testing.T) { t.Skip("kernel prohibits unshare in unprivileged process, unless using user namespace") } - d, err := ioutil.TempDir("", "unshare") + d, err := os.MkdirTemp("", "unshare") if err != nil { t.Fatalf("tempdir: %v", err) } @@ -391,7 +390,7 @@ func TestUnshareMountNameSpaceChroot(t *testing.T) { t.Skip("kernel prohibits unshare in unprivileged process, unless using user namespace") } - d, err := ioutil.TempDir("", "unshare") + d, err := os.MkdirTemp("", "unshare") if err != nil { t.Fatalf("tempdir: %v", err) } @@ -599,7 +598,7 @@ func testAmbientCaps(t *testing.T, userns bool) { } // Copy the test binary to a temporary location which is readable by nobody. - f, err := ioutil.TempFile("", "gotest") + f, err := os.CreateTemp("", "gotest") if err != nil { t.Fatal(err) } diff --git a/src/syscall/getdirentries_test.go b/src/syscall/getdirentries_test.go index 2a3419c230..66bb8acba2 100644 --- a/src/syscall/getdirentries_test.go +++ b/src/syscall/getdirentries_test.go @@ -8,7 +8,6 @@ package syscall_test import ( "fmt" - "io/ioutil" "os" "path/filepath" "sort" @@ -29,7 +28,7 @@ func testGetdirentries(t *testing.T, count int) { if count > 100 && testing.Short() && os.Getenv("GO_BUILDER_NAME") == "" { t.Skip("skipping in -short mode") } - d, err := ioutil.TempDir("", "getdirentries-test") + d, err := os.MkdirTemp("", "getdirentries-test") if err != nil { t.Fatalf("Tempdir: %v", err) } @@ -41,7 +40,7 @@ func testGetdirentries(t *testing.T, count int) { // Make files in the temp directory for _, name := range names { - err := ioutil.WriteFile(filepath.Join(d, name), []byte("data"), 0) + err := os.WriteFile(filepath.Join(d, name), []byte("data"), 0) if err != nil { t.Fatalf("WriteFile: %v", err) } diff --git a/src/syscall/mkasm_darwin.go b/src/syscall/mkasm_darwin.go index f6f75f99f6..1783387a53 100644 --- a/src/syscall/mkasm_darwin.go +++ b/src/syscall/mkasm_darwin.go @@ -11,23 +11,22 @@ package main import ( "bytes" "fmt" - "io/ioutil" "log" "os" "strings" ) func main() { - in1, err := ioutil.ReadFile("syscall_darwin.go") + in1, err := os.ReadFile("syscall_darwin.go") if err != nil { log.Fatalf("can't open syscall_darwin.go: %s", err) } arch := os.Args[1] - in2, err := ioutil.ReadFile(fmt.Sprintf("syscall_darwin_%s.go", arch)) + in2, err := os.ReadFile(fmt.Sprintf("syscall_darwin_%s.go", arch)) if err != nil { log.Fatalf("can't open syscall_darwin_%s.go: %s", arch, err) } - in3, err := ioutil.ReadFile(fmt.Sprintf("zsyscall_darwin_%s.go", arch)) + in3, err := os.ReadFile(fmt.Sprintf("zsyscall_darwin_%s.go", arch)) if err != nil { log.Fatalf("can't open zsyscall_darwin_%s.go: %s", arch, err) } @@ -51,7 +50,7 @@ func main() { fmt.Fprintf(&out, "\tJMP\t%s(SB)\n", fn) } } - err = ioutil.WriteFile(fmt.Sprintf("zsyscall_darwin_%s.s", arch), out.Bytes(), 0644) + err = os.WriteFile(fmt.Sprintf("zsyscall_darwin_%s.s", arch), out.Bytes(), 0644) if err != nil { log.Fatalf("can't write zsyscall_darwin_%s.s: %s", arch, err) } diff --git a/src/syscall/syscall_linux_test.go b/src/syscall/syscall_linux_test.go index 92764323ee..153d0efef1 100644 --- a/src/syscall/syscall_linux_test.go +++ b/src/syscall/syscall_linux_test.go @@ -9,7 +9,6 @@ import ( "fmt" "io" "io/fs" - "io/ioutil" "os" "os/exec" "os/signal" @@ -30,7 +29,7 @@ func chtmpdir(t *testing.T) func() { if err != nil { t.Fatalf("chtmpdir: %v", err) } - d, err := ioutil.TempDir("", "test") + d, err := os.MkdirTemp("", "test") if err != nil { t.Fatalf("chtmpdir: %v", err) } @@ -160,7 +159,7 @@ func TestLinuxDeathSignal(t *testing.T) { // Copy the test binary to a location that a non-root user can read/execute // after we drop privileges - tempDir, err := ioutil.TempDir("", "TestDeathSignal") + tempDir, err := os.MkdirTemp("", "TestDeathSignal") if err != nil { t.Fatalf("cannot create temporary directory: %v", err) } @@ -321,7 +320,7 @@ func TestSyscallNoError(t *testing.T) { // Copy the test binary to a location that a non-root user can read/execute // after we drop privileges - tempDir, err := ioutil.TempDir("", "TestSyscallNoError") + tempDir, err := os.MkdirTemp("", "TestSyscallNoError") if err != nil { t.Fatalf("cannot create temporary directory: %v", err) } @@ -543,7 +542,7 @@ func TestAllThreadsSyscall(t *testing.T) { func compareStatus(filter, expect string) error { expected := filter + expect pid := syscall.Getpid() - fs, err := ioutil.ReadDir(fmt.Sprintf("/proc/%d/task", pid)) + fs, err := os.ReadDir(fmt.Sprintf("/proc/%d/task", pid)) if err != nil { return fmt.Errorf("unable to find %d tasks: %v", pid, err) } @@ -551,7 +550,7 @@ func compareStatus(filter, expect string) error { foundAThread := false for _, f := range fs { tf := fmt.Sprintf("/proc/%s/status", f.Name()) - d, err := ioutil.ReadFile(tf) + d, err := os.ReadFile(tf) if err != nil { // There are a surprising number of ways this // can error out on linux. We've seen all of diff --git a/src/syscall/syscall_unix_test.go b/src/syscall/syscall_unix_test.go index 1c34ed2c27..7e6a8c9043 100644 --- a/src/syscall/syscall_unix_test.go +++ b/src/syscall/syscall_unix_test.go @@ -11,7 +11,6 @@ import ( "fmt" "internal/testenv" "io" - "io/ioutil" "net" "os" "os/exec" @@ -79,7 +78,7 @@ func TestFcntlFlock(t *testing.T) { } if os.Getenv("GO_WANT_HELPER_PROCESS") == "" { // parent - tempDir, err := ioutil.TempDir("", "TestFcntlFlock") + tempDir, err := os.MkdirTemp("", "TestFcntlFlock") if err != nil { t.Fatalf("Failed to create temp dir: %v", err) } @@ -157,7 +156,7 @@ func TestPassFD(t *testing.T) { } - tempDir, err := ioutil.TempDir("", "TestPassFD") + tempDir, err := os.MkdirTemp("", "TestPassFD") if err != nil { t.Fatal(err) } @@ -257,7 +256,7 @@ func passFDChild() { // We make it in tempDir, which our parent will clean up. flag.Parse() tempDir := flag.Arg(0) - f, err := ioutil.TempFile(tempDir, "") + f, err := os.CreateTemp(tempDir, "") if err != nil { fmt.Printf("TempFile: %v", err) return diff --git a/src/syscall/syscall_windows_test.go b/src/syscall/syscall_windows_test.go index d146911073..a9ae54752b 100644 --- a/src/syscall/syscall_windows_test.go +++ b/src/syscall/syscall_windows_test.go @@ -5,7 +5,6 @@ package syscall_test import ( - "io/ioutil" "os" "path/filepath" "syscall" @@ -13,7 +12,7 @@ import ( ) func TestWin32finddata(t *testing.T) { - dir, err := ioutil.TempDir("", "go-build") + dir, err := os.MkdirTemp("", "go-build") if err != nil { t.Fatalf("failed to create temp directory: %v", err) } diff --git a/src/testing/testing.go b/src/testing/testing.go index d4b108a183..80354d5ce8 100644 --- a/src/testing/testing.go +++ b/src/testing/testing.go @@ -242,7 +242,6 @@ import ( "fmt" "internal/race" "io" - "io/ioutil" "os" "runtime" "runtime/debug" @@ -936,14 +935,14 @@ func (c *common) TempDir() string { if nonExistent { c.Helper() - // ioutil.TempDir doesn't like path separators in its pattern, + // os.MkdirTemp doesn't like path separators in its pattern, // so mangle the name to accommodate subtests. tempDirReplacer.Do(func() { tempDirReplacer.r = strings.NewReplacer("/", "_", "\\", "_", ":", "_") }) pattern := tempDirReplacer.r.Replace(c.Name()) - c.tempDir, c.tempDirErr = ioutil.TempDir("", pattern) + c.tempDir, c.tempDirErr = os.MkdirTemp("", pattern) if c.tempDirErr == nil { c.Cleanup(func() { if err := os.RemoveAll(c.tempDir); err != nil { diff --git a/src/text/template/examplefiles_test.go b/src/text/template/examplefiles_test.go index a15c7a62a3..6534ee3315 100644 --- a/src/text/template/examplefiles_test.go +++ b/src/text/template/examplefiles_test.go @@ -6,7 +6,6 @@ package template_test import ( "io" - "io/ioutil" "log" "os" "path/filepath" @@ -20,7 +19,7 @@ type templateFile struct { } func createTestDir(files []templateFile) string { - dir, err := ioutil.TempDir("", "template") + dir, err := os.MkdirTemp("", "template") if err != nil { log.Fatal(err) } diff --git a/src/text/template/helper.go b/src/text/template/helper.go index 8269fa28c5..57905e613a 100644 --- a/src/text/template/helper.go +++ b/src/text/template/helper.go @@ -9,7 +9,7 @@ package template import ( "fmt" "io/fs" - "io/ioutil" + "os" "path" "path/filepath" ) @@ -164,7 +164,7 @@ func parseFS(t *Template, fsys fs.FS, patterns []string) (*Template, error) { func readFileOS(file string) (name string, b []byte, err error) { name = filepath.Base(file) - b, err = ioutil.ReadFile(file) + b, err = os.ReadFile(file) return } diff --git a/src/text/template/link_test.go b/src/text/template/link_test.go index 4eac7e6755..9dc70dfc0d 100644 --- a/src/text/template/link_test.go +++ b/src/text/template/link_test.go @@ -7,7 +7,6 @@ package template_test import ( "bytes" "internal/testenv" - "io/ioutil" "os" "os/exec" "path/filepath" @@ -40,13 +39,13 @@ func main() { t.Used() } ` - td, err := ioutil.TempDir("", "text_template_TestDeadCodeElimination") + td, err := os.MkdirTemp("", "text_template_TestDeadCodeElimination") if err != nil { t.Fatal(err) } defer os.RemoveAll(td) - if err := ioutil.WriteFile(filepath.Join(td, "x.go"), []byte(prog), 0644); err != nil { + if err := os.WriteFile(filepath.Join(td, "x.go"), []byte(prog), 0644); err != nil { t.Fatal(err) } cmd := exec.Command(testenv.GoToolPath(t), "build", "-o", "x.exe", "x.go") @@ -54,7 +53,7 @@ func main() { if out, err := cmd.CombinedOutput(); err != nil { t.Fatalf("go build: %v, %s", err, out) } - slurp, err := ioutil.ReadFile(filepath.Join(td, "x.exe")) + slurp, err := os.ReadFile(filepath.Join(td, "x.exe")) if err != nil { t.Fatal(err) } diff --git a/src/time/genzabbrs.go b/src/time/genzabbrs.go index 1d59ba73ce..9825e705d2 100644 --- a/src/time/genzabbrs.go +++ b/src/time/genzabbrs.go @@ -18,9 +18,9 @@ import ( "flag" "go/format" "io" - "io/ioutil" "log" "net/http" + "os" "sort" "text/template" "time" @@ -128,7 +128,7 @@ func main() { if err != nil { log.Fatal(err) } - err = ioutil.WriteFile(*filename, data, 0644) + err = os.WriteFile(*filename, data, 0644) if err != nil { log.Fatal(err) } diff --git a/src/time/tzdata/generate_zipdata.go b/src/time/tzdata/generate_zipdata.go index d8b47e7878..21357fbf1c 100644 --- a/src/time/tzdata/generate_zipdata.go +++ b/src/time/tzdata/generate_zipdata.go @@ -10,7 +10,6 @@ package main import ( "bufio" "fmt" - "io/ioutil" "os" "strconv" ) @@ -40,7 +39,7 @@ const zipdata = ` func main() { // We should be run in the $GOROOT/src/time/tzdata directory. - data, err := ioutil.ReadFile("../../../lib/time/zoneinfo.zip") + data, err := os.ReadFile("../../../lib/time/zoneinfo.zip") if err != nil { die("cannot find zoneinfo.zip file: %v", err) } diff --git a/src/time/zoneinfo_read.go b/src/time/zoneinfo_read.go index 22a60f3211..c739864815 100644 --- a/src/time/zoneinfo_read.go +++ b/src/time/zoneinfo_read.go @@ -546,7 +546,7 @@ func loadLocation(name string, sources []string) (z *Location, firstErr error) { } // readFile reads and returns the content of the named file. -// It is a trivial implementation of ioutil.ReadFile, reimplemented +// It is a trivial implementation of os.ReadFile, reimplemented // here to avoid depending on io/ioutil or os. // It returns an error if name exceeds maxFileSize bytes. func readFile(name string) ([]byte, error) { -- cgit v1.3