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authorUlrich Drepper <drepper@redhat.com>2002-05-03 07:39:22 +0000
committerUlrich Drepper <drepper@redhat.com>2002-05-03 07:39:22 +0000
commit38a7d8baf498dd46f81ff49ea28eb3b3b7775544 (patch)
tree9ab47cc3c0a86d3239957903d475564d28cdc5db /linuxthreads/signals.c
parent3dbbe24e84fe0f5f87e274ffdba56d6bfd552244 (diff)
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Update.
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.
Diffstat (limited to 'linuxthreads/signals.c')
-rw-r--r--linuxthreads/signals.c79
1 files changed, 12 insertions, 67 deletions
diff --git a/linuxthreads/signals.c b/linuxthreads/signals.c
index da3ce69a4d..a11f865e73 100644
--- a/linuxthreads/signals.c
+++ b/linuxthreads/signals.c
@@ -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);