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Update. 

2000-04-16  Ulrich Drepper  <drepper@redhat.com>

	* pthread.c: Correct long-time braino.  We never set SA_SIGINFO and
	therefore don't need the _rt versions of the signal handlers.

	* internals.h: Declare __pthread_yield.
This commit is contained in:
Ulrich Drepper 2000-04-16 08:18:10 +00:00
parent c269fdb42f
commit e2947c429e
3 changed files with 10 additions and 34 deletions
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6
linuxthreads/ChangeLog
View File

@ -1,8 +1,14 @@
2000-04-16 Ulrich Drepper <drepper@redhat.com>
* pthread.c: Correct long-time braino. We never set SA_SIGINFO and
therefore don't need the _rt versions of the signal handlers.
2000-04-15 Ulrich Drepper <drepper@redhat.com>
* pthread.c (pthread_yield): New function.
* sysdeps/pthread/pthread.h (pthread_yield): Add prototype.
* Versions [libpthread] (GLIBC_2.2): Add pthread_yield.
* internals.h: Declare __pthread_yield.
* pthread.c (pthread_initialize): Avoid a bit more code if
realtime signals are known to exist.

2
linuxthreads/internals.h
View File

@ -439,6 +439,8 @@ int __pthread_timedsuspend_new(pthread_descr self, const struct timespec *abs);
void __pthread_wait_for_restart_signal(pthread_descr self);
int __pthread_yield (void);
/* Global pointers to old or new suspend functions */
extern void (*__pthread_restart)(pthread_descr);

36
linuxthreads/pthread.c
View File

@ -197,11 +197,7 @@ static void pthread_handle_sigcancel(int sig);
static void pthread_handle_sigrestart(int sig);
#ifdef __i386__
static void pthread_handle_sigrestart_nonrt(int sig, struct sigcontext ctx);
static void pthread_handle_sigrestart_rt(int sig, struct siginfo *si,
struct ucontext *uc);
static void pthread_handle_sigcancel_nonrt(int sig, struct sigcontext ctx);
static void pthread_handle_sigcancel_rt(int sig, struct siginfo *si,
struct ucontext *uc);
#endif
static void pthread_handle_sigdebug(int sig);
@ -369,12 +365,7 @@ static void pthread_initialize(void)
#ifndef __i386__
sa.sa_handler = pthread_handle_sigrestart;
#else
# if !__ASSUME_REALTIME_SIGNALS
if (__pthread_sig_restart < SIGRTMIN)
sa.sa_handler = (__sighandler_t) pthread_handle_sigrestart_nonrt;
else
# endif
sa.sa_handler = (__sighandler_t) pthread_handle_sigrestart_rt;
sa.sa_handler = (__sighandler_t) pthread_handle_sigrestart_nonrt;
#endif
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
@ -382,12 +373,7 @@ static void pthread_initialize(void)
#ifndef __i386__
sa.sa_handler = pthread_handle_sigcancel;
#else
# if !__ASSUME_REALTIME_SIGNALS
if (__pthread_sig_restart < SIGRTMIN)
sa.sa_handler = (__sighandler_t) pthread_handle_sigcancel_nonrt;
else
# endif
sa.sa_handler = (__sighandler_t) pthread_handle_sigcancel_rt;
sa.sa_handler = (__sighandler_t) pthread_handle_sigcancel_nonrt;
#endif
sa.sa_flags = 0;
__sigaction(__pthread_sig_cancel, &sa, NULL);
@ -675,20 +661,11 @@ static void pthread_handle_sigrestart(int sig)
}
#ifdef __i386__
# if !__ASSUME_REALTIME_SIGNALS
static void pthread_handle_sigrestart_nonrt(int sig, struct sigcontext ctx)
{
asm volatile ("movw %w0,%%gs" : : "r" (ctx.gs));
pthread_handle_sigrestart(sig);
}
# endif
static void pthread_handle_sigrestart_rt(int sig, struct siginfo *si,
struct ucontext *uc)
{
asm volatile ("movw %w0,%%gs" : : "r" (uc->uc_mcontext.gregs[REG_GS]));
pthread_handle_sigrestart(sig);
}
#endif
/* The handler for the CANCEL signal checks for cancellation
@ -726,20 +703,11 @@ static void pthread_handle_sigcancel(int sig)
}
#ifdef __i386__
# if !__ASSUME_REALTIME_SIGNALS
static void pthread_handle_sigcancel_nonrt(int sig, struct sigcontext ctx)
{
asm volatile ("movw %w0,%%gs" : : "r" (ctx.gs));
pthread_handle_sigcancel(sig);
}
# endif
static void pthread_handle_sigcancel_rt(int sig, struct siginfo *si,
struct ucontext *uc)
{
asm volatile ("movw %w0,%%gs" : : "r" (uc->uc_mcontext.gregs[REG_GS]));
pthread_handle_sigcancel(sig);
}
#endif
/* Handler for the DEBUG signal.