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runtime: use sigaltstack on macOS/ARM64

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Currently we don't use sigaltstack on darwin/arm64, as is not
supported on iOS. However, it is supported on macOS. Use it.
(iOS remains unchanged.)

Change-Id: Icc154c5e2edf2dbdc8ca68741ad9157fc15a72ee
Reviewed-on: https://go-review.googlesource.com/c/go/+/256917
Trust: Cherry Zhang <cherryyz@google.com>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
This commit is contained in:
Cherry Zhang 2020-09-12 12:33:24 -04:00
parent 04c7e32517
commit 28e549dec3
7 changed files with 27 additions and 19 deletions
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2
src/runtime/stack.go
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@ -66,7 +66,7 @@ const (
// to each stack below the usual guard area for OS-specific
// purposes like signal handling. Used on Windows, Plan 9,
// and iOS because they do not use a separate stack.
_StackSystem = sys.GoosWindows*512*sys.PtrSize + sys.GoosPlan9*512 + (sys.GoosDarwin+sys.GoosIos)*sys.GoarchArm64*1024
_StackSystem = sys.GoosWindows*512*sys.PtrSize + sys.GoosPlan9*512 + sys.GoosIos*sys.GoarchArm64*1024
// The minimum size of stack used by Go code
_StackMin = 2048