diff options
| author | Philip Guenthe <guenther@cvs.openbsd.org> | 2012-06-21 00:57:00 +0000 |
|---|---|---|
| committer | Philip Guenthe <guenther@cvs.openbsd.org> | 2012-06-21 00:57:00 +0000 |
| commit | 867c8588faf5fba418fc7c3a85aa2bd4c3327e01 (patch) | |
| tree | e98c388fcdff4a138a38722ee463c1b12f6c133a /lib/libc/arch/sh | |
| parent | 28222fd1268ab97426703666e99f70ed942e847b (diff) | |
__tfork() needs to set the stack address of the new thread in the kernel,
so that it can't get a signal while still running on the parent thread's
stack. Also, pass in sizeof(struct __tfork) to provide forward compat
when more members are added. This is an ABI change, so switch syscall
numbers and bump lib majors this time.
ok deraadt@ matthew@
Diffstat (limited to 'lib/libc/arch/sh')
| -rw-r--r-- | lib/libc/arch/sh/sys/tfork_thread.S | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/lib/libc/arch/sh/sys/tfork_thread.S b/lib/libc/arch/sh/sys/tfork_thread.S index bfca155e1d0..49235c0b829 100644 --- a/lib/libc/arch/sh/sys/tfork_thread.S +++ b/lib/libc/arch/sh/sys/tfork_thread.S @@ -1,4 +1,4 @@ -/* $OpenBSD: tfork_thread.S,v 1.1 2012/03/22 00:44:56 guenther Exp $ */ +/* $OpenBSD: tfork_thread.S,v 1.2 2012/06/21 00:56:59 guenther Exp $ */ /* * Copyright (c) 2007 Miodrag Vallat. @@ -20,7 +20,7 @@ #include "SYS.h" /* - * int __tfork_thread(const struct __tfork *param, void *stack, void (*func)(void *), void *arg); + * int __tfork_thread(const struct __tfork *param, size_t psize, void (*func)(void *), void *arg); * r4 r5 r6 r7 */ ENTRY(__tfork_thread) @@ -39,9 +39,8 @@ ENTRY(__tfork_thread) 1: /* - * In child process: switch stack, invoke function, then exit. + * In child process: invoke function, then exit. */ - mov r5, sp jsr @r6 mov r7, r4 |