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Update.
1998-09-12 Mark Kettenis <kettenis@phys.uva.nl> * sysdeps/generic/segfault.c (install_handler): Install signal handler with SA_ONSTACK instead of setting the stack flags to SS_ONSTACK. Do not install handler for SIGSTKFLT if it is not defined. 1998-09-12 14:24 -0400 Zack Weinberg <zack@rabi.phys.columbia.edu> * signal/signal.h: Fix multiple inclusion guard to cover the entire file. * wcsmbs/wchar.h: Remove prototype of internal function __mbsrtowcs. * sysdeps/i386/i486/bits/string.h (memchr): Don't do arithmetic on `void *'.
This commit is contained in:
Ulrich Drepper
parent
c06cc21c04
commit
b39c6f8b7a
16
ChangeLog
16
ChangeLog
@ -1,3 +1,19 @@
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1998-09-12 Mark Kettenis <kettenis@phys.uva.nl>
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* sysdeps/generic/segfault.c (install_handler): Install signal
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handler with SA_ONSTACK instead of setting the stack flags to
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SS_ONSTACK. Do not install handler for SIGSTKFLT if it is not
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defined.
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1998-09-12 14:24 -0400 Zack Weinberg <zack@rabi.phys.columbia.edu>
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* signal/signal.h: Fix multiple inclusion guard to cover the
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entire file.
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* wcsmbs/wchar.h: Remove prototype of internal function
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__mbsrtowcs.
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* sysdeps/i386/i486/bits/string.h (memchr): Don't do
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arithmetic on `void *'.
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1998-09-12 01:09 Tim Waugh <tim@cyberelk.demon.co.uk>
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* posix/wordexp-test.c: Fix wrong tests. Add new tests.
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@ -1,3 +1,8 @@
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1998-09-12 14:24 -0400 Zack Weinberg <zack@rabi.phys.columbia.edu>
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* linuxthreads/sysdeps/unix/sysv/linux/bits/sigthread.h: Add
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multiple inclusion guard.
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1998-09-02 11:08 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
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* signals.c (sigaction): Check that sig is less than NSIG to avoid
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@ -17,6 +17,9 @@
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write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#ifndef _BITS_SIGTHREAD_H
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#define _BITS_SIGTHREAD_H 1
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#if !defined _SIGNAL_H && !defined _PTHREAD_H
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# error "Never include this file directly. Use <pthread.h> instead"
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#endif
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@ -30,3 +33,5 @@ extern int pthread_sigmask __P ((int __how, __const __sigset_t *__newmask,
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/* Send signal SIGNO to the given thread. */
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extern int pthread_kill __P ((pthread_t __thread, int __signo));
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#endif /* bits/sigthread.h */
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@ -23,32 +23,43 @@
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#ifndef _SIGNAL_H
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#if !defined __need_sig_atomic_t && !defined __need_sigset_t
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# define _SIGNAL_H 1
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# include <features.h>
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# define _SIGNAL_H
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#endif
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#include <features.h>
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__BEGIN_DECLS
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#include <bits/types.h>
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#include <bits/sigset.h> /* __sigset_t, __sig_atomic_t. */
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#if defined _SIGNAL_H && defined __USE_XOPEN && !defined pid_t
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/* An integral type that can be modified atomically, without the
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possibility of a signal arriving in the middle of the operation. */
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#ifndef __sig_atomic_t_defined
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# if defined __need_sig_atomic_t || defined _SIGNAL_H
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# undef __need_sig_atomic_t
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# define __sig_atomic_t_defined 1
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typedef __sig_atomic_t sig_atomic_t;
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# endif
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#endif
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#ifndef __sigset_t_defined
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# if defined __need_sigset_t || (defined _SIGNAL_H && defined __USE_POSIX)
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# undef __need_sigset_t
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# define __sigset_t_defined 1
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typedef __sigset_t sigset_t;
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# endif
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#endif
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#ifdef _SIGNAL_H
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#include <bits/types.h>
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#include <bits/signum.h>
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#if defined __USE_XOPEN && !defined pid_t
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typedef __pid_t pid_t;
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# define pid_t pid_t
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#endif /* Unix98 */
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#if !defined __sig_atomic_t_defined \
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&& (defined _SIGNAL_H || defined __need_sig_atomic_t)
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/* An integral type that can be modified atomically, without the
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possibility of a signal arriving in the middle of the operation. */
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typedef __sig_atomic_t sig_atomic_t;
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# define __sig_atomic_t_defined
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#endif /* `sig_atomic_t' undefined and <signal.h> or need `sig_atomic_t'. */
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#undef __need_sig_atomic_t
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#ifdef _SIGNAL_H
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#include <bits/signum.h>
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/* Type of a signal handler. */
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typedef void (*__sighandler_t) __PMT ((int));
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@ -120,7 +131,7 @@ extern void psignal __P ((int __sig, __const char *__s));
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selects the X/Open version. */
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extern int __sigpause __P ((int __sig_or_mask, int __is_sig));
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#if defined __USE_BSD || defined __USE_GNU
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#ifdef __USE_BSD
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/* Set the mask of blocked signals to MASK,
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wait for a signal to arrive, and then restore the mask. */
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extern int sigpause __P ((int __mask));
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@ -166,20 +177,8 @@ typedef __sighandler_t sighandler_t;
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typedef __sighandler_t sig_t;
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#endif
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#endif /* <signal.h> included. */
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#if !defined __sigset_t_defined \
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&& ((defined _SIGNAL_H && defined __USE_POSIX) || defined __need_sigset_t)
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typedef __sigset_t sigset_t;
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# define __sigset_t_defined 1
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#endif /* `sigset_t' not defined and <signal.h> or need `sigset_t'. */
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#undef __need_sigset_t
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#ifdef __USE_POSIX
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# ifdef _SIGNAL_H
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/* We need `struct timespec' later on. */
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# define __need_timespec
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# include <time.h>
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@ -253,11 +252,9 @@ extern int sigtimedwait __P ((__const sigset_t *__set, siginfo_t *__info,
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extern int sigqueue __P ((__pid_t __pid, int __sig,
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__const union sigval __val));
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# endif /* <signal.h> included. */
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#endif /* Use POSIX. */
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#if defined _SIGNAL_H && defined __USE_BSD
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#ifdef __USE_BSD
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/* Names of the signals. This variable exists only for compatibility.
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Use `strsignal' instead (see <string.h>). */
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@ -295,13 +292,10 @@ extern int sigvec __P ((int __sig, __const struct sigvec *__vec,
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/* Restore the state saved in SCP. */
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extern int sigreturn __P ((struct sigcontext *__scp));
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#endif /* signal.h included and use BSD. */
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#endif /* use BSD. */
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#if defined _SIGNAL_H && (defined __USE_BSD || defined __USE_XOPEN_EXTENDED)
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# define __need_size_t
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# include <stddef.h>
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#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
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/* If INTERRUPT is nonzero, make signal SIG interrupt system calls
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(causing them to fail with EINTR); if INTERRUPT is zero, make system
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@ -321,10 +315,9 @@ extern int sigstack __P ((__const struct sigstack *__ss,
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extern int sigaltstack __P ((__const struct sigaltstack *__ss,
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struct sigaltstack *__oss));
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#endif /* signal.h included and use BSD or X/Open Unix. */
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#endif /* use BSD or X/Open Unix. */
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#if defined _SIGNAL_H && defined __USE_UNIX98
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#ifdef __USE_UNIX98
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/* Simplified interface for signal management. */
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/* Add SIG to the calling process' signal mask. */
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@ -338,7 +331,7 @@ extern int sigignore __P ((int __sig));
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/* Set the disposition of SIG. */
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extern __sighandler_t sigset __P ((int __sig, __sighandler_t __disp));
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#endif
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#endif /* use Unix98 */
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#ifdef __USE_POSIX
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/* Some of the functions for handling signals in threaded programs must
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@ -357,6 +350,8 @@ extern int __libc_current_sigrtmax __P ((void));
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/* Allocate real-time signal with highest/lowest available priority. */
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extern int __libc_allocate_rtsig __P ((int __high));
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#endif /* signal.h */
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__END_DECLS
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#endif /* signal.h */
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#endif /* not signal.h */
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@ -163,6 +163,23 @@ install_handler (void)
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sigemptyset (&sa.sa_mask);
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sa.sa_flags = SA_RESTART;
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/* Maybe we are expected to use an alternative stack. */
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if (getenv ("SEGFAULT_USE_ALTSTACK") != 0)
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{
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void *stack_mem = malloc (2 * SIGSTKSZ);
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struct sigaltstack ss;
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if (stack_mem != NULL)
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{
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ss.ss_sp = stack_mem;
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ss.ss_flags = 0;
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ss.ss_size = 2 * SIGSTKSZ;
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if (sigaltstack (&ss, NULL) == 0)
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sa.sa_flags |= SA_ONSTACK;
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}
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}
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if (sigs == NULL)
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sigaction (SIGSEGV, &sa, NULL);
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else if (sigs[0] == '\0')
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@ -191,20 +208,4 @@ install_handler (void)
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INSTALL_FOR_SIG (SIGABRT, "abrt");
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INSTALL_FOR_SIG (SIGFPE, "fpe");
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}
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/* Maybe we are expected to use an alternative stack. */
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if (getenv ("SEGFAULT_USE_ALTSTACK") != 0)
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{
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void *stack_mem = malloc (2 * SIGSTKSZ);
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struct sigaltstack ss;
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if (stack_mem != NULL)
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{
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ss.ss_sp = stack_mem;
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ss.ss_flags = SS_ONSTACK;
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ss.ss_size = 2 * SIGSTKSZ;
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sigaltstack (&ss, NULL);
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}
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}
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}
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@ -329,7 +329,7 @@ __STRING_INLINE void *
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memchr (__const void *__s, int __c, size_t __n)
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{
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register unsigned long int __d0;
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register void *__res;
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register unsigned char *__res;
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if (__n == 0)
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return NULL;
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#ifdef __i686__
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@ -244,9 +244,6 @@ extern __inline size_t mbrlen (__const char *__restrict __s, size_t __n,
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/* Write wide character representation of multibyte character string
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SRC to DST. */
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extern size_t __mbsrtowcs __P ((wchar_t *__restrict __dst,
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__const char **__restrict __src,
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size_t __len, mbstate_t *__restrict __ps));
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extern size_t mbsrtowcs __P ((wchar_t *__restrict __dst,
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__const char **__restrict __src,
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size_t __len, mbstate_t *__restrict __ps));
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