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| author | Cherry Zhang <cherryyz@google.com> | 2020-11-27 00:42:41 -0500 |
|---|---|---|
| committer | Cherry Zhang <cherryyz@google.com> | 2020-11-30 22:14:36 +0000 |
| commit | 7f688d18c0ae6df3e895d21799b8ece7d5941293 (patch) | |
| tree | 3dc79202b2267040ee7f7d6fea933466ade45986 /src/runtime/sys_darwin_amd64.s | |
| parent | d2b436d95d99cb3ff587bf0d2e893a8d027f8292 (diff) | |
| download | go-7f688d18c0ae6df3e895d21799b8ece7d5941293.tar.gz go-7f688d18c0ae6df3e895d21799b8ece7d5941293.zip | |
runtime: mlock signal stack on macOS/ARM64
Apparently, the macOS ARM64 kernel has a bug where when a signal
arrives and the signal stack is not currently faulted in, it may
kill the program with a SIGILL. Work around it by mlock the
signal stacks.
Fixes #42774.
Change-Id: I99a4b3fdb6d8af1c945725ddc2c25568d81c510a
Reviewed-on: https://go-review.googlesource.com/c/go/+/273686
Trust: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Austin Clements <austin@google.com>
Run-TryBot: Austin Clements <austin@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Diffstat (limited to 'src/runtime/sys_darwin_amd64.s')
| -rw-r--r-- | src/runtime/sys_darwin_amd64.s | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/runtime/sys_darwin_amd64.s b/src/runtime/sys_darwin_amd64.s index 129e1e1a96..9b5b23901d 100644 --- a/src/runtime/sys_darwin_amd64.s +++ b/src/runtime/sys_darwin_amd64.s @@ -105,6 +105,9 @@ TEXT runtime·madvise_trampoline(SB), NOSPLIT, $0 POPQ BP RET +TEXT runtime·mlock_trampoline(SB), NOSPLIT, $0 + UNDEF // unimplemented + GLOBL timebase<>(SB),NOPTR,$(machTimebaseInfo__size) TEXT runtime·nanotime_trampoline(SB),NOSPLIT,$0 |