diff options
Diffstat (limited to 'contrib/bug216610/go/fibber/fibs_linux_amd64.s')
| -rw-r--r-- | contrib/bug216610/go/fibber/fibs_linux_amd64.s | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/contrib/bug216610/go/fibber/fibs_linux_amd64.s b/contrib/bug216610/go/fibber/fibs_linux_amd64.s new file mode 100644 index 0000000..5992d09 --- /dev/null +++ b/contrib/bug216610/go/fibber/fibs_linux_amd64.s @@ -0,0 +1,21 @@ +// To transition from a Go call to a C function call, we are skating +// on really thin ice... Ceveat Emptor! +// +// Ref: +// https://gitlab.com/x86-psABIs/x86-64-ABI/-/wikis/home +// +// This is not strictly needed, but it makes gdb debugging less +// confusing because spacer ends up being an alias for the TEXT +// section start. +TEXT ·spacer(SB),$0 + RET + +#define RINDEX(n) (8*n) + +// Header to this function wrapper is the last time we can voluntarily +// yield to some other goroutine. +TEXT ·syso(SB),$0-16 + MOVQ cFn+RINDEX(0)(FP), SI + MOVQ state+RINDEX(1)(FP), DI + CALL *SI + RET |