src/pkg/runtime/386/asm.s - Issue 4711045: code review 4711045: runtime: improve Linux mutex

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Unified Diff: src/pkg/runtime/386/asm.s

Issue 4711045: code review 4711045: runtime: improve Linux mutex (Closed)

Patch Set: diff -r c162ec4be385 https://go.googlecode.com/hg/ Created 13 years, 7 months ago

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Index: src/pkg/runtime/386/asm.s

===================================================================

--- a/src/pkg/runtime/386/asm.s

+++ b/src/pkg/runtime/386/asm.s

@@ -331,6 +331,20 @@

ADDL CX, AX

RET

+TEXT runtime·xchg(SB), 7, $0

+ MOVL 4(SP), BX

+ MOVL 8(SP), AX

+ XCHGL AX, 0(BX)

+ RET

+TEXT runtime·procyield(SB),7,$0

+ MOVL 4(SP), AX

+again:

+ PAUSE

+ SUBL $1, AX

+ JNZ again

+ RET

TEXT runtime·atomicstorep(SB), 7, $0

MOVL 4(SP), BX

MOVL 8(SP), AX

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