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2002-05-02  Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/ia64/Makefile: Add ia64libgcc in csu subdir.
	* sysdeps/ia64/Versions (__divtf3, __divdf3, __divsf3, __divdi3,
	__moddi3, __udivdi3, __umoddi3, __multi3): Export at GLIBC_2.0.
	* sysdeps/ia64/ia64libgcc.S: New file.

2002-05-02  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/generic/dl-tls.c (oom): Implement using _dl_fatal_printf.

	* malloc/memusage.c: Distinguish anonymous mmap.
This commit is contained in:
Ulrich Drepper
2002-05-03 07:39:22 +00:00
parent 3dbbe24e84
commit 38a7d8baf4
10 changed files with 490 additions and 85 deletions
Download Patch File Download Diff File Expand all files Collapse all files

79
linuxthreads/signals.c
View File

@@ -20,7 +20,7 @@
#include "internals.h"
#include "spinlock.h"
#include <ucontext.h>
#include <sigcontextinfo.h>
int pthread_sigmask(int how, const sigset_t * newmask, sigset_t * oldmask)
{
@@ -68,60 +68,8 @@ int pthread_kill(pthread_t thread, int signo)
return 0;
}
/* User-provided signal handlers */
typedef void (*arch_sighandler_t) (int, SIGCONTEXT);
static union
{
arch_sighandler_t old;
void (*rt) (int, struct siginfo *, struct ucontext *);
} sighandler[NSIG] = { [1 ... NSIG - 1] = { (arch_sighandler_t) SIG_ERR } };
/* The wrapper around user-provided signal handlers */
static void pthread_sighandler(int signo, SIGCONTEXT ctx)
{
pthread_descr self;
char * in_sighandler;
self = thread_self();
/* If we're in a sigwait operation, just record the signal received
and return without calling the user's handler */
if (THREAD_GETMEM(self, p_sigwaiting)) {
THREAD_SETMEM(self, p_sigwaiting, 0);
THREAD_SETMEM(self, p_signal, signo);
return;
}
/* Record that we're in a signal handler and call the user's
handler function */
in_sighandler = THREAD_GETMEM(self, p_in_sighandler);
if (in_sighandler == NULL)
THREAD_SETMEM(self, p_in_sighandler, CURRENT_STACK_FRAME);
CALL_SIGHANDLER(sighandler[signo].old, signo, ctx);
if (in_sighandler == NULL)
THREAD_SETMEM(self, p_in_sighandler, NULL);
}
/* The same, this time for real-time signals. */
static void pthread_sighandler_rt(int signo, struct siginfo *si,
struct ucontext *uc)
{
pthread_descr self;
char * in_sighandler;
self = thread_self();
/* If we're in a sigwait operation, just record the signal received
and return without calling the user's handler */
if (THREAD_GETMEM(self, p_sigwaiting)) {
THREAD_SETMEM(self, p_sigwaiting, 0);
THREAD_SETMEM(self, p_signal, signo);
return;
}
/* Record that we're in a signal handler and call the user's
handler function */
in_sighandler = THREAD_GETMEM(self, p_in_sighandler);
if (in_sighandler == NULL)
THREAD_SETMEM(self, p_in_sighandler, CURRENT_STACK_FRAME);
sighandler[signo].rt(signo, si, uc);
if (in_sighandler == NULL)
THREAD_SETMEM(self, p_in_sighandler, NULL);
}
union sighandler __sighandler[NSIG] =
{ [1 ... NSIG - 1] = { (arch_sighandler_t) SIG_ERR } };
/* The wrapper around sigaction. Install our own signal handler
around the signal. */
@@ -145,9 +93,9 @@ int __sigaction(int sig, const struct sigaction * act,
&& sig > 0 && sig < NSIG)
{
if (act->sa_flags & SA_SIGINFO)
newact.sa_handler = (__sighandler_t) pthread_sighandler_rt;
newact.sa_handler = (__sighandler_t) __pthread_sighandler_rt;
else
newact.sa_handler = (__sighandler_t) pthread_sighandler;
newact.sa_handler = (__sighandler_t) __pthread_sighandler;
}
newactp = &newact;
}
@@ -161,20 +109,17 @@ int __sigaction(int sig, const struct sigaction * act,
/* We may have inherited SIG_IGN from the parent, so return the
kernel's idea of the signal handler the first time
through. */
&& (__sighandler_t) sighandler[sig].old != SIG_ERR)
oact->sa_handler = (__sighandler_t) sighandler[sig].old;
&& (__sighandler_t) __sighandler[sig].old != SIG_ERR)
oact->sa_handler = (__sighandler_t) __sighandler[sig].old;
if (act)
/* For the assignment it does not matter whether it's a normal
or real-time signal. */
sighandler[sig].old = (arch_sighandler_t) act->sa_handler;
__sighandler[sig].old = (arch_sighandler_t) act->sa_handler;
}
return 0;
}
strong_alias(__sigaction, sigaction)
/* A signal handler that does nothing */
static void pthread_null_sighandler(int sig) { }
/* sigwait -- synchronously wait for a signal */
int sigwait(const sigset_t * set, int * sig)
{
@@ -198,10 +143,10 @@ int sigwait(const sigset_t * set, int * sig)
s != __pthread_sig_cancel &&
s != __pthread_sig_debug) {
sigdelset(&mask, s);
if (sighandler[s].old == (arch_sighandler_t) SIG_ERR ||
sighandler[s].old == (arch_sighandler_t) SIG_DFL ||
sighandler[s].old == (arch_sighandler_t) SIG_IGN) {
sa.sa_handler = pthread_null_sighandler;
if (__sighandler[s].old == (arch_sighandler_t) SIG_ERR ||
__sighandler[s].old == (arch_sighandler_t) SIG_DFL ||
__sighandler[s].old == (arch_sighandler_t) SIG_IGN) {
sa.sa_handler = __pthread_null_sighandler;
sigfillset(&sa.sa_mask);
sa.sa_flags = 0;
sigaction(s, &sa, NULL);