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| author | Shenghou Ma <minux.ma@gmail.com> | 2012-08-10 10:05:26 +0800 |
|---|---|---|
| committer | Shenghou Ma <minux.ma@gmail.com> | 2012-08-10 10:05:26 +0800 |
| commit | 4f308edc864a87ff4f6f9d6c531733cb1bf100f1 (patch) | |
| tree | 33667df64d6c50b4e1b266a3585a2f8b5d6acac9 /src/pkg/runtime/sys_linux_amd64.s | |
| parent | c5038c85933a69a1ddeae812d601eb11e71cdc58 (diff) | |
| download | go-4f308edc864a87ff4f6f9d6c531733cb1bf100f1.tar.xz | |
runtime: use sched_getaffinity for runtime.NumCPU() on Linux
Fixes #3921.
R=iant
CC=golang-dev
https://golang.org/cl/6448132
Diffstat (limited to 'src/pkg/runtime/sys_linux_amd64.s')
| -rw-r--r-- | src/pkg/runtime/sys_linux_amd64.s | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/src/pkg/runtime/sys_linux_amd64.s b/src/pkg/runtime/sys_linux_amd64.s index 657ab7e0bb..e0ca6583c6 100644 --- a/src/pkg/runtime/sys_linux_amd64.s +++ b/src/pkg/runtime/sys_linux_amd64.s @@ -310,3 +310,11 @@ TEXT runtime·osyield(SB),7,$0 MOVL $24, AX SYSCALL RET + +TEXT runtime·sched_getaffinity(SB),7,$0 + MOVQ 8(SP), DI + MOVL 16(SP), SI + MOVQ 24(SP), DX + MOVL $204, AX // syscall entry + SYSCALL + RET |