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| author | Fangming.Fang <fangming.fang@arm.com> | 2018-04-08 07:32:43 +0000 |
|---|---|---|
| committer | Ian Lance Taylor <iant@golang.org> | 2018-05-02 17:52:14 +0000 |
| commit | e8d417d272290027e10e348f81cbc6bb5fe0ec13 (patch) | |
| tree | 394e28ae3d04021ddffc8c6c22d16abd71c1479f /src/runtime/rt0_linux_arm64.s | |
| parent | eff1e68528fc9052a7ff1ac7afe222696f85db8c (diff) | |
| download | go-e8d417d272290027e10e348f81cbc6bb5fe0ec13.tar.gz go-e8d417d272290027e10e348f81cbc6bb5fe0ec13.zip | |
runtime: enable memory sanitizer on arm64
Changes include:
1. open compilation option -msan for arm64
2. modify doc to explain -msan is also supported on linux/arm64
3. wrap msan lib API in msan_arm64.s
4. use libc for sigaction syscalls when cgo is enabled
5. use libc for mmap syscalls when cgo is enabled
Change-Id: I26ebe61ff7ce1906125f54a0182a720f9d58ec11
Reviewed-on: https://go-review.googlesource.com/109255
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
Diffstat (limited to 'src/runtime/rt0_linux_arm64.s')
| -rw-r--r-- | src/runtime/rt0_linux_arm64.s | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/src/runtime/rt0_linux_arm64.s b/src/runtime/rt0_linux_arm64.s index e81e598d3a..458f082159 100644 --- a/src/runtime/rt0_linux_arm64.s +++ b/src/runtime/rt0_linux_arm64.s @@ -11,7 +11,7 @@ TEXT _rt0_arm64_linux(SB),NOSPLIT|NOFRAME,$0 // When building with -buildmode=c-shared, this symbol is called when the shared // library is loaded. -TEXT _rt0_arm64_linux_lib(SB),NOSPLIT,$168 +TEXT _rt0_arm64_linux_lib(SB),NOSPLIT,$184 // Preserve callee-save registers. MOVD R19, 24(RSP) MOVD R20, 32(RSP) @@ -30,6 +30,10 @@ TEXT _rt0_arm64_linux_lib(SB),NOSPLIT,$168 FMOVD F13, 136(RSP) FMOVD F14, 144(RSP) FMOVD F15, 152(RSP) + MOVD g, 160(RSP) + + // Initialize g as null in case of using g later e.g. sigaction in cgo_sigaction.go + MOVD ZR, g MOVD R0, _rt0_arm64_linux_lib_argc<>(SB) MOVD R1, _rt0_arm64_linux_lib_argv<>(SB) @@ -74,6 +78,7 @@ restore: FMOVD 136(RSP), F13 FMOVD 144(RSP), F14 FMOVD 152(RSP), F15 + MOVD 160(RSP), g RET TEXT _rt0_arm64_linux_lib_go(SB),NOSPLIT,$0 |