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authorWei Guangjing <vcc.163@gmail.com>2011-08-26 16:43:37 -0400
committerRuss Cox <rsc@golang.org>2011-08-26 16:43:37 -0400
commite753512e2d42483eacaca975ff8fd58cc1b7dfed (patch)
tree8505cae620893f086f447dfaa9fc12d122a284f3 /src/pkg/runtime/amd64
parent26d9c804f837398eef1d09d6224de59e37d1cbca (diff)
downloadgo-e753512e2d42483eacaca975ff8fd58cc1b7dfed.tar.xz
cgo: fixes callback for windows amd64
R=rsc CC=golang-dev https://golang.org/cl/4826041
Diffstat (limited to 'src/pkg/runtime/amd64')
-rw-r--r--src/pkg/runtime/amd64/asm.s10
1 files changed, 5 insertions, 5 deletions
diff --git a/src/pkg/runtime/amd64/asm.s b/src/pkg/runtime/amd64/asm.s
index acd131bb31..a881e3bbf4 100644
--- a/src/pkg/runtime/amd64/asm.s
+++ b/src/pkg/runtime/amd64/asm.s
@@ -448,19 +448,19 @@ TEXT runtime·asmcgocall(SB),7,$0
MOVQ (g_sched+gobuf_sp)(SI), SP
// Now on a scheduling stack (a pthread-created stack).
- SUBQ $32, SP
+ SUBQ $48, SP
ANDQ $~15, SP // alignment for gcc ABI
- MOVQ DI, 16(SP) // save g
- MOVQ DX, 8(SP) // save SP
+ MOVQ DI, 32(SP) // save g
+ MOVQ DX, 24(SP) // save SP
MOVQ BX, DI // DI = first argument in AMD64 ABI
MOVQ BX, CX // CX = first argument in Win64
CALL AX
// Restore registers, g, stack pointer.
get_tls(CX)
- MOVQ 16(SP), DI
+ MOVQ 32(SP), DI
MOVQ DI, g(CX)
- MOVQ 8(SP), SP
+ MOVQ 24(SP), SP
RET
// cgocallback(void (*fn)(void*), void *frame, uintptr framesize)