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2025-10-21runtime,syscall: implement and use syscalln on darwinqmuntal
All darwin syscall implementations can be consolidated into a single syscalln function, as already happens on Windows. This reduces duplication and allows moving some logic from runtime to syscall. Updates #699135 Cq-Include-Trybots: luci.golang.try:gotip-darwin-arm64-longtest,gotip-darwin-amd64-longtest,x_sys-gotip-darwin-arm64-longtest,x_sys-gotip-darwin-amd64-longtest Change-Id: If5de80442b1d4a1123258401a3ae21695e7c8f6b Reviewed-on: https://go-review.googlesource.com/c/go/+/699177 LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Reviewed-by: David Chase <drchase@google.com> Reviewed-by: Michael Pratt <mpratt@google.com>
2023-11-27syscall: remove ptrace1 on darwinCherry Mui
On Darwin, the ptrace syscall is called in ptrace1, which then be called in ptrace. This allows ptrace1 be disabled on iOS (by implementing ptrace differently). But we can also achieve this by adding a conditional directly in ptrace. This reduces stack usage with -N -l, while keeping ptrace disabled on iOS. For #64113. Change-Id: I89d8e317e77352fffdbb5a25ba21ee9cdf2e1e20 Reviewed-on: https://go-review.googlesource.com/c/go/+/545276 Reviewed-by: Michael Knyszek <mknyszek@google.com> Run-TryBot: Cherry Mui <cherryyz@google.com> TryBot-Result: Gopher Robot <gobot@golang.org>
2023-09-07syscall: remove unused ptracePtr on darwinTobias Klauser
ptracePtr was introduced in CL 470299 for darwin but it's not used on this platform. Also, the argument types for addr and data were swapped in the generated ptrace1Ptr (probably because the change was not generated but done manually). For #58387 Change-Id: I429ab0c741e19020d98729c34efabce1d9003f56 Reviewed-on: https://go-review.googlesource.com/c/go/+/526475 Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com> Reviewed-by: Ian Lance Taylor <iant@google.com> Reviewed-by: Bryan Mills <bcmills@google.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
2023-02-23syscall: add ptracePtr that accepts pointer arg as unsafe.PointerDmitri Goutnik
The existing ptrace wrapper accepts pointer argument as an uintptr which often points to the memory allocated in Go. This violates unsafe.Pointer safety rules. Fixes #58387 Change-Id: Iab12122c495953f94ea00c2a61654a818a464205 Reviewed-on: https://go-review.googlesource.com/c/go/+/470299 TryBot-Result: Gopher Robot <gobot@golang.org> Run-TryBot: Dmitri Goutnik <dgoutnik@gmail.com> Reviewed-by: Bryan Mills <bcmills@google.com> Reviewed-by: Ian Lance Taylor <iant@google.com> Auto-Submit: Dmitri Goutnik <dgoutnik@gmail.com>
2021-04-26syscall, etc.: use abi.FuncPCABI0 for libc syscall wrappersCherry Zhang
In CL 288092 we made Darwin syscall wrappers as ABIInternal, so their addresses taken from Go using funcPC are the actual function entries, not the wrappers. As we introduced internal/abi.FuncPCABIxxx intrinsics, use that. And change the assembly functions back to ABI0. Do it on OpenBSD as well, as OpenBSD and Darwin share code generator. Change-Id: I408120795f7fc826637c867394248f8f373906bd Reviewed-on: https://go-review.googlesource.com/c/go/+/313230 Trust: Cherry Zhang <cherryyz@google.com> Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Than McIntosh <thanm@google.com> Reviewed-by: Michael Knyszek <mknyszek@google.com>
2020-12-22[dev.regabi] all: merge master (c9fb4eb) into dev.regabiRuss Cox
Merge List: * 2020-12-22 c9fb4eb0a2 cmd/link: handle grouped resource sections * 2020-12-22 c06a354bcc test: trigger SIGSEGV instead of SIGTRAP in issue11656.go * 2020-12-22 0aa9b4709a cmd/pack: r command create output file if not exist * 2020-12-22 4d27c4c223 runtime: correct error handling in several FreeBSD syscall wrappers * 2020-12-22 9b6147120a cmd/pack: treat compiler's -linkobj output as "compiler object" * 2020-12-21 bc7e4d9257 syscall: don't generate ptrace on iOS * 2020-12-21 6cff874c47 runtime/metrics: add Read examples * 2020-12-21 8438a5779b runtime: use _exit on darwin * 2020-12-21 cb95819cf6 runtime: detect netbsd netpoll overrun in sysmon * 2020-12-21 53c984d976 runtime: skip wakep call in wakeNetPoller on Plan 9 * 2020-12-21 9abbe27710 test: skip issue11656.go on mips/mips64/ppc64 Change-Id: Ibb235fbf6a86ebcf50c686dc11f7c02d1865f845
2020-12-21syscall: don't generate ptrace on iOSCherry Zhang
May fix #43302. Change-Id: I6b7ddf94495c4fa80cf8a50a38eef5f8b2872669 Reviewed-on: https://go-review.googlesource.com/c/go/+/279481 Trust: Cherry Zhang <cherryyz@google.com> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2020-12-01[dev.regabi] cmd/compile: process //go:linknames after declarationsMatthew Dempsky
Allows emitting errors about ineffectual //go:linkname directives. In particular, this exposed: a typo in os2_aix.go; redundant (but harmless) directives for libc_pipe in both os3_solaris.go and syscall2_solaris.go; and a bunch of useless //go:linkname directives in macOS wrapper code. However, because there's also ineffectual directives in the vendored macOS code from x/sys, that can't be an error just yet. So instead we print a warning (including a heads up that it will be promoted to an error in Go 1.17) to prevent backsliding while we fix and re-vendor that code. Passes toolstash-check. Change-Id: I59badeab5df0d8b3abfd14c6066e9bb00e840f73 Reviewed-on: https://go-review.googlesource.com/c/go/+/273986 Run-TryBot: Matthew Dempsky <mdempsky@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Russ Cox <rsc@golang.org> Trust: Matthew Dempsky <mdempsky@google.com>
2020-10-08syscall: support ptrace on macOS/ARM64Cherry Zhang
Updates #38485. Change-Id: I853966d934a8ee05cf62c7321f3e6271811d47b1 Reviewed-on: https://go-review.googlesource.com/c/go/+/260718 Trust: Cherry Zhang <cherryyz@google.com> Run-TryBot: Cherry Zhang <cherryyz@google.com> TryBot-Result: Go Bot <gobot@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2019-10-23syscall: reenable sysctl on iOSJason A. Donenfeld
This was disabled due to a report that the App Store rejects the symbol __sysctl. However, we use the sysctl symbol, which is fine. The __sysctl symbol is used by x/sys/unix, which needs fixing instead. So, this commit reenables sysctl on iOS, so that things like net.InterfaceByName can work again. This reverts CL 193843, CL 193844, CL 193845, and CL 193846. Fixes #35101 Updates #34133 Updates #35103 Change-Id: Ib8eb9f87b81db24965b0de29d99eb52887c7c60a Reviewed-on: https://go-review.googlesource.com/c/go/+/202778 Run-TryBot: Jason A. Donenfeld <Jason@zx2c4.com> Reviewed-by: David Crawshaw <crawshaw@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
2019-09-07syscall: disable sysctl on iOSElias Naur
Sysctl is blocked by the App Store submission checks. Fixes #34133 Change-Id: I9e83cf87e942d6249e9bb67a95dba230e44badd9 Reviewed-on: https://go-review.googlesource.com/c/go/+/193843 Run-TryBot: Elias Naur <mail@eliasnaur.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
2019-06-15syscall: disable ptrace on iOSElias Naur
It is forbidden by App Store. Fixes #31628 Change-Id: Ie6d14a524ee55b57af8db685f3a79f474733add5 Reviewed-on: https://go-review.googlesource.com/c/go/+/182297 TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2019-04-27cmd/link/internal/ld,syscall: drop $INODE64 suffixes on simulatorsElias Naur
Some libc functions are suffixed with "$INODE64" on macOS. Unfortunately, the iOS simulator doesn't have the suffixes, so we can't use GOARCH to distinguish the two platform. Add linker support for adding the suffix, using the macho platform to determine whether it is needed. While here, add the correct suffix for fdopendir on 386. It's "$INODE64$UNIX2003", believe it or not. Without the suffix, GOARCH=386 go test -short syscall crashes on my Mojave machine. Fixes #31447 Change-Id: I9bd3de40ece7df62f744bc24cd00909e56b00b78 Reviewed-on: https://go-review.googlesource.com/c/go/+/174199 TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2019-04-03syscall: avoid _getdirentries64 on darwinKeith Randall
Getdirentries is implemented with the __getdirentries64 function in libSystem.dylib. That function works, but it's on Apple's can't-be-used-in-an-app-store-application list. Implement Getdirentries using the underlying fdopendir/readdir_r/closedir. The simulation isn't faithful, and could be slow, but it should handle common cases. Don't use Getdirentries in the stdlib, use fdopendir/readdir_r/closedir instead (via (*os.File).readdirnames). Fixes #30933 Update #28984 RELNOTE=yes Change-Id: Ia6b5d003e5bfe43ba54b1e1d9cfa792cc6511717 Reviewed-on: https://go-review.googlesource.com/c/go/+/168479 Reviewed-by: Emmanuel Odeke <emm.odeke@gmail.com> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Run-TryBot: Emmanuel Odeke <emm.odeke@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org>
2018-12-13runtime,os,syscall,internal/poll: replace getdirentries on iOSElias Naur
The getdirentries syscall is considered private API on iOS and is rejected by the App Store submission checks. Replace it with the fdopendir/readdir_r/closedir syscalls. Fixes #28984 Change-Id: I73341b124310e9cb34834a95f946769f337ec5b7 Reviewed-on: https://go-review.googlesource.com/c/153338 Reviewed-by: Keith Randall <khr@golang.org>
2018-12-01syscall: avoid "64"-postfixed libSystem syscalls on iOSElias Naur
The stat(2) man page contain this comment about the 64-bit versions of the system file functions: "Platforms that were released after these updates only have the newer variants available to them. These platforms have the macro _DARWIN_FEATURE_ONLY_64_BIT_INODE defined." It turns out that on iOS the _DARWIN_FEATURE_ONLY_64_BIT_INODE is defined and that even though the "64"-postfixed versions are accessible they are deemed private. Apps that refer to private API are not admissible on App Store, and after the Go runtime started using libSystem instead of direct syscalls, the App Store submission checks reject apps built with Go tip. The fix is simple: use the non-postfixed versions on iOS. getdirentries(2) is not changed; it is not available at all on iOS and needs replacement. Updates #28984 Change-Id: Icb8d44e271456acaa1913ba486fcf5b569722fa9 Reviewed-on: https://go-review.googlesource.com/c/151938 Run-TryBot: Elias Naur <elias.naur@gmail.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Keith Randall <khr@golang.org>
2018-11-07syscall: implement syscalls on Darwin using libSystemKeith Randall
There are still some references to the bare Syscall functions in the stdlib. I will root those out in a following CL. (This CL is big enough as it is.) Most are in vendor directories: cmd/vendor/golang.org/x/sys/unix/ vendor/golang_org/x/net/route/syscall.go syscall/bpf_bsd.go syscall/exec_unix.go syscall/flock.go Update #17490 Change-Id: I69ab707811530c26b652b291cadee92f5bf5c1a4 Reviewed-on: https://go-review.googlesource.com/c/141639 Run-TryBot: Keith Randall <khr@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Elias Naur <elias.naur@gmail.com> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-10-12syscall: update darwin/amd64 for timespec changeRuss Cox
Change-Id: I74f47f519dfee10cd079ad9a4e09e36e8d74c6dc Reviewed-on: https://go-review.googlesource.com/30937 Run-TryBot: Russ Cox <rsc@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org> Reviewed-by: Ian Lance Taylor <iant@golang.org>
2016-10-11syscall: unify TimespecToNsec and TimevalToNsecIan Lance Taylor
All implementations of these functions are identical. Change-Id: I7cbea53c02bb0cee75e30beed19d29ba0a7ef657 Reviewed-on: https://go-review.googlesource.com/30819 Run-TryBot: Ian Lance Taylor <iant@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-09-06syscall: make Getpagesize return page size from runtimeAustin Clements
syscall.Getpagesize currently returns hard-coded page sizes on all architectures (some of which are probably always wrong, and some of which are definitely not always right). The runtime now has this information, queried from the OS during runtime init, so make syscall.Getpagesize return the page size that the runtime knows. Updates #10180. Change-Id: I4daa6fbc61a2193eb8fa9e7878960971205ac346 Reviewed-on: https://go-review.googlesource.com/25051 Run-TryBot: Austin Clements <austin@google.com> TryBot-Result: Gobot Gobot <gobot@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-08-05runtime, syscall: fix kernel gettimeofday ABI change on iOS 10Shenghou Ma
Fixes #16570 on iOS. Thanks Daniel Burhans for reporting the bug and testing the fix. Change-Id: I43ae7b78c8f85a131ed3d93ea59da9f32a02cd8f Reviewed-on: https://go-review.googlesource.com/25481 Reviewed-by: Ian Lance Taylor <iant@golang.org> Reviewed-by: Brad Fitzpatrick <bradfitz@golang.org>
2016-03-02all: single space after period.Brad Fitzpatrick
The tree's pretty inconsistent about single space vs double space after a period in documentation. Make it consistently a single space, per earlier decisions. This means contributors won't be confused by misleading precedence. This CL doesn't use go/doc to parse. It only addresses // comments. It was generated with: $ perl -i -npe 's,^(\s*// .+[a-z]\.) +([A-Z]),$1 $2,' $(git grep -l -E '^\s*//(.+\.) +([A-Z])') $ go test go/doc -update Change-Id: Iccdb99c37c797ef1f804a94b22ba5ee4b500c4f7 Reviewed-on: https://go-review.googlesource.com/20022 Reviewed-by: Rob Pike <r@golang.org> Reviewed-by: Dave Day <djd@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
2015-04-16syscall: darwin/arm64 supportShenghou Ma
Change-Id: I3b3f80791a1db4c2b7318f81a115972cd2237f04 Signed-off-by: Shenghou Ma <minux@golang.org> Reviewed-on: https://go-review.googlesource.com/8783 Reviewed-by: David Crawshaw <crawshaw@golang.org>
generated by cgit v1.3 (git 2.53.0) at 2026-04-16 00:14:48 +0000