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authorUlrich Drepper <drepper@redhat.com>1999-09-18 23:21:25 +0000
committerUlrich Drepper <drepper@redhat.com>1999-09-18 23:21:25 +0000
commit9cf44e65641b946949db0bbf3059901ff2ef08cb (patch)
treec46268cea32dfcb5e08b5e7846281cc1babfab08 /linuxthreads/pthread.c
parentc68d04feb7fca7f45eb30c286812092653e24ca1 (diff)
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Update.
1999-09-18 Ulrich Drepper <drepper@cygnus.com> * pthread.c (pthread_handle_sigrestart_rt): New function. Use this instead of pthread_handle_sigrestart if the signal is an RT signal. * signals.c: Handle passing through of sighandler arguments also for real-time signals.
Diffstat (limited to 'linuxthreads/pthread.c')
-rw-r--r--linuxthreads/pthread.c24
1 files changed, 23 insertions, 1 deletions
diff --git a/linuxthreads/pthread.c b/linuxthreads/pthread.c
index 86f24469de..2f10f06790 100644
--- a/linuxthreads/pthread.c
+++ b/linuxthreads/pthread.c
@@ -21,6 +21,9 @@
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
+#ifdef __i386__
+# include <ucontext.h>
+#endif
#include <sys/wait.h>
#include <sys/resource.h>
#include "pthread.h"
@@ -161,6 +164,8 @@ static void pthread_handle_sigrestart(int sig);
#else
static void pthread_handle_sigcancel(int sig, struct sigcontext ctx);
static void pthread_handle_sigrestart(int sig, struct sigcontext ctx);
+static void pthread_handle_sigrestart_rt(int sig, struct siginfo *si,
+ struct ucontext *uc);
#endif
static void pthread_handle_sigdebug(int sig);
@@ -318,7 +323,10 @@ static void pthread_initialize(void)
#ifndef __i386__
sa.sa_handler = pthread_handle_sigrestart;
#else
- sa.sa_handler = (__sighandler_t) pthread_handle_sigrestart;
+ if (__pthread_sig_restart >= SIGRTMIN)
+ sa.sa_handler = (__sighandler_t) pthread_handle_sigrestart_rt;
+ else
+ sa.sa_handler = (__sighandler_t) pthread_handle_sigrestart;
#endif
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
@@ -568,6 +576,20 @@ static void pthread_handle_sigrestart(int sig, struct sigcontext ctx)
siglongjmp(*THREAD_GETMEM(self, p_signal_jmp), 1);
}
+#ifdef __i386__
+static void pthread_handle_sigrestart_rt(int sig, struct siginfo *si,
+ struct ucontext *uc)
+{
+ pthread_descr self;
+ asm volatile ("movw %w0,%%gs" : : "r" (uc->uc_mcontext.gregs[GS]));
+ self = thread_self();
+ THREAD_SETMEM(self, p_signal, sig);
+ if (THREAD_GETMEM(self, p_signal_jmp) != NULL)
+ siglongjmp(*THREAD_GETMEM(self, p_signal_jmp), 1);
+}
+#endif
+
+
/* The handler for the CANCEL signal checks for cancellation
(in asynchronous mode), for process-wide exit and exec requests.
For the thread manager thread, redirect the signal to