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authorMichael Pratt <mpratt@google.com>2022-04-21 14:49:54 -0400
committerGopher Robot <gobot@golang.org>2022-04-21 19:06:50 +0000
commitd35ec0b899fe1013af49adb92ef789e25797c2eb (patch)
tree98f959d0b3c51f7c5648691531d8ec213e62293a /src/syscall/asm_linux_amd64.s
parent347534343b114d9183efeefcb1d49458e1e8e34f (diff)
downloadgo-d35ec0b899fe1013af49adb92ef789e25797c2eb.tar.xz
Revert "syscall: define Syscall6 in terms of RawSyscall6 on linux"
This reverts CL 388478. Parent CL 388477 breaks cmd/go TestScript/cover_pkgall_runtime. For #51087. For #52472. Change-Id: Id5d5a4e138792cf130ecdcc6b996c8102d142a7e Reviewed-on: https://go-review.googlesource.com/c/go/+/401635 Run-TryBot: Michael Pratt <mpratt@google.com> Auto-Submit: Michael Pratt <mpratt@google.com> Reviewed-by: Bryan Mills <bcmills@google.com> TryBot-Result: Gopher Robot <gobot@golang.org>
Diffstat (limited to 'src/syscall/asm_linux_amd64.s')
-rw-r--r--src/syscall/asm_linux_amd64.s26
1 files changed, 26 insertions, 0 deletions
diff --git a/src/syscall/asm_linux_amd64.s b/src/syscall/asm_linux_amd64.s
index 3206a45d5d..ea939b39f0 100644
--- a/src/syscall/asm_linux_amd64.s
+++ b/src/syscall/asm_linux_amd64.s
@@ -11,6 +11,32 @@
#define SYS_gettimeofday 96
+// func Syscall6(trap, a1, a2, a3, a4, a5, a6 uintptr) (r1, r2, err uintptr)
+TEXT ·Syscall6(SB),NOSPLIT,$0-80
+ CALL runtime·entersyscall<ABIInternal>(SB)
+ MOVQ a1+8(FP), DI
+ MOVQ a2+16(FP), SI
+ MOVQ a3+24(FP), DX
+ MOVQ a4+32(FP), R10
+ MOVQ a5+40(FP), R8
+ MOVQ a6+48(FP), R9
+ MOVQ trap+0(FP), AX // syscall entry
+ SYSCALL
+ CMPQ AX, $0xfffffffffffff001
+ JLS ok6
+ MOVQ $-1, r1+56(FP)
+ MOVQ $0, r2+64(FP)
+ NEGQ AX
+ MOVQ AX, err+72(FP)
+ CALL runtime·exitsyscall<ABIInternal>(SB)
+ RET
+ok6:
+ MOVQ AX, r1+56(FP)
+ MOVQ DX, r2+64(FP)
+ MOVQ $0, err+72(FP)
+ CALL runtime·exitsyscall<ABIInternal>(SB)
+ RET
+
// func rawVforkSyscall(trap, a1 uintptr) (r1, err uintptr)
TEXT ·rawVforkSyscall(SB),NOSPLIT|NOFRAME,$0-32
MOVQ a1+8(FP), DI