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Invoke the proper signal trampoline depending on SA_SIGINFO.

This commit is contained in:
matt 2003-09-27 01:03:40 +00:00
parent 60ff688f72
commit 20745b5469
1 changed files with 26 additions and 6 deletions
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32
lib/libc/arch/powerpc/sys/__sigaction14_sigtramp.c
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@ -1,4 +1,4 @@
/* $NetBSD: __sigaction14_sigtramp.c,v 1.2 2003/01/18 11:12:55 thorpej Exp $ */
/* $NetBSD: __sigaction14_sigtramp.c,v 1.3 2003/09/27 01:03:40 matt Exp $ */
/*-
* Copyright (c) 2002 The NetBSD Foundation, Inc.
@ -39,7 +39,9 @@
#define __LIBC12_SOURCE__
#include <sys/types.h>
#include <stddef.h>
#include <signal.h>
#include <errno.h>
#include "extern.h"
@ -48,13 +50,31 @@ __weak_alias(__sigaction14, __libc_sigaction14)
int
__libc_sigaction14(int sig, const struct sigaction *act, struct sigaction *oact)
{
extern int __sigtramp_sigcontext_1[];
extern const int __sigtramp_sigcontext_1[];
extern const int __sigtramp_siginfo_2[];
int rv;
/*
* Right here we should select the SA_SIGINFO trampoline
* if SA_SIGINFO is set in the sigaction.
* If no sigaction, use the "default" trampoline since it won't
* be used.
*/
if (act == NULL)
return __sigaction_sigtramp(sig, act, oact, NULL, 0);
return (__sigaction_sigtramp(sig, act, oact,
__sigtramp_sigcontext_1, 1));
/*
* We select the non-SA_SIGINFO trampoline if SA_SIGINFO is not
* set in the sigaction.
*/
if ((act->sa_flags & SA_SIGINFO) == 0) {
rv = __sigaction_sigtramp(sig, act, oact,
__sigtramp_sigcontext_1, 1);
if (rv >= 0 || errno != EINVAL)
return rv;
}
/*
* If SA_SIGINFO was specificed or the compatibility trampolines
* can't be used, use the siginfo trampoline.
*/
return __sigaction_sigtramp(sig, act, oact, __sigtramp_siginfo_2, 2);
}