diff options
Diffstat (limited to 'src/runtime/asm_386.s')
| -rw-r--r-- | src/runtime/asm_386.s | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/src/runtime/asm_386.s b/src/runtime/asm_386.s index 471451df28..3030101f03 100644 --- a/src/runtime/asm_386.s +++ b/src/runtime/asm_386.s @@ -621,6 +621,22 @@ TEXT gosave<>(SB),NOSPLIT,$0 POPL AX RET +// func asmcgocall_no_g(fn, arg unsafe.Pointer) +// Call fn(arg) aligned appropriately for the gcc ABI. +// Called on a system stack, and there may be no g yet (during needm). +TEXT ·asmcgocall_no_g(SB),NOSPLIT,$0-8 + MOVL fn+0(FP), AX + MOVL arg+4(FP), BX + MOVL SP, DX + SUBL $32, SP + ANDL $~15, SP // alignment, perhaps unnecessary + MOVL DX, 8(SP) // save old SP + MOVL BX, 0(SP) // first argument in x86-32 ABI + CALL AX + MOVL 8(SP), DX + MOVL DX, SP + RET + // func asmcgocall(fn, arg unsafe.Pointer) int32 // Call fn(arg) on the scheduler stack, // aligned appropriately for the gcc ABI. |