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runtime: fix another stack split bug

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Makes godoc --http=:1234 not crash on linux/amd64.

R=r
CC=golang-dev
https://golang.org/cl/1975044
This commit is contained in:
Russ Cox 2010-08-12 23:26:54 -07:00
parent 79c62aaa99
commit e2bde5cf9b
1 changed files with 3 additions and 0 deletions
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3
src/pkg/runtime/proc.c
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@ -547,6 +547,9 @@ gosched(void)
// Record that it's not using the cpu anymore. // Record that it's not using the cpu anymore.
// This is called only from the go syscall library and cgocall, // This is called only from the go syscall library and cgocall,
// not from the low-level system calls used by the runtime. // not from the low-level system calls used by the runtime.
// Entersyscall cannot split the stack: the gosave must
// make g->sched refer to the caller's stack pointer.
#pragma textflag 7
void void
·entersyscall(void) ·entersyscall(void)
{ {