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runtime: avoid runtime·cgocall in functions called by forkAndExecInChild

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Calling runtime·cgocall could trigger a GC in the child while
gclock was held by the parent.

Fixes #7511

LGTM=bradfitz, dvyukov, dave
R=golang-codereviews, bradfitz, dvyukov, dave
CC=golang-codereviews, rsc
https://golang.org/cl/75210044
This commit is contained in:
Aram Hăvărneanu 2014-03-13 18:26:01 +11:00 committed by Dave Cheney
parent fcc10bc0f1
commit 28792f5d83
1 changed files with 4 additions and 4 deletions
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8
src/pkg/runtime/syscall_solaris.goc
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@ -170,7 +170,7 @@ func execve(path uintptr, argv uintptr, envp uintptr) (err uintptr) {
c.fn = (void*)libc·execve;
c.n = 3;
c.args = (void*)&path;
runtime·cgocall(runtime·asmsysvicall6, &c);
runtime·asmcgocall(runtime·asmsysvicall6, &c);
err = c.err;
}
@ -193,7 +193,7 @@ func fcntl1(fd uintptr, cmd uintptr, arg uintptr) (val uintptr, err uintptr) {
c.fn = (void*)libc·fcntl;
c.n = 3;
c.args = (void*)&fd;
runtime·cgocall(runtime·asmsysvicall6, &c);
runtime·asmcgocall(runtime·asmsysvicall6, &c);
err = c.err;
val = c.r1;
}
@ -227,7 +227,7 @@ func ioctl(fd uintptr, req uintptr, arg uintptr) (err uintptr) {
c.fn = (void*)libc·ioctl;
c.n = 3;
c.args = (void*)&fd;
runtime·cgocall(runtime·asmsysvicall6, &c);
runtime·asmcgocall(runtime·asmsysvicall6, &c);
err = c.err;
}
@ -338,7 +338,7 @@ func write1(fd uintptr, buf uintptr, nbyte uintptr) (n uintptr, err uintptr) {
c.fn = (void*)libc·write;
c.n = 3;
c.args = (void*)fd;
runtime·cgocall(runtime·asmsysvicall6, &c);
runtime·asmcgocall(runtime·asmsysvicall6, &c);
err = c.err;
n = c.r1;
}