diff options
| -rw-r--r-- | ChangeLog | 16 | ||||
| -rw-r--r-- | linuxthreads/ChangeLog | 5 | ||||
| -rw-r--r-- | linuxthreads/sysdeps/unix/sysv/linux/bits/sigthread.h | 5 | ||||
| -rw-r--r-- | signal/signal.h | 73 | ||||
| -rw-r--r-- | sysdeps/generic/segfault.c | 33 | ||||
| -rw-r--r-- | sysdeps/i386/i486/bits/string.h | 2 | ||||
| -rw-r--r-- | wcsmbs/wchar.h | 3 |
7 files changed, 78 insertions, 59 deletions
diff --git a/ChangeLog b/ChangeLog index b0bd30e6b8..ba55a5701b 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,19 @@ +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 *'. + 1998-09-12 01:09 Tim Waugh <tim@cyberelk.demon.co.uk> * posix/wordexp-test.c: Fix wrong tests. Add new tests. diff --git a/linuxthreads/ChangeLog b/linuxthreads/ChangeLog index 2812806fe7..b33db03c35 100644 --- a/linuxthreads/ChangeLog +++ b/linuxthreads/ChangeLog @@ -1,3 +1,8 @@ +1998-09-12 14:24 -0400 Zack Weinberg <zack@rabi.phys.columbia.edu> + + * linuxthreads/sysdeps/unix/sysv/linux/bits/sigthread.h: Add + multiple inclusion guard. + 1998-09-02 11:08 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de> * signals.c (sigaction): Check that sig is less than NSIG to avoid diff --git a/linuxthreads/sysdeps/unix/sysv/linux/bits/sigthread.h b/linuxthreads/sysdeps/unix/sysv/linux/bits/sigthread.h index 7bd0974409..c9b1dcf1be 100644 --- a/linuxthreads/sysdeps/unix/sysv/linux/bits/sigthread.h +++ b/linuxthreads/sysdeps/unix/sysv/linux/bits/sigthread.h @@ -17,6 +17,9 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ +#ifndef _BITS_SIGTHREAD_H +#define _BITS_SIGTHREAD_H 1 + #if !defined _SIGNAL_H && !defined _PTHREAD_H # error "Never include this file directly. Use <pthread.h> instead" #endif @@ -30,3 +33,5 @@ extern int pthread_sigmask __P ((int __how, __const __sigset_t *__newmask, /* Send signal SIGNO to the given thread. */ extern int pthread_kill __P ((pthread_t __thread, int __signo)); + +#endif /* bits/sigthread.h */ diff --git a/signal/signal.h b/signal/signal.h index 93058973a9..62ccf19699 100644 --- a/signal/signal.h +++ b/signal/signal.h @@ -23,33 +23,44 @@ #ifndef _SIGNAL_H #if !defined __need_sig_atomic_t && !defined __need_sigset_t -# define _SIGNAL_H 1 -# include <features.h> +# define _SIGNAL_H #endif +#include <features.h> + __BEGIN_DECLS -#include <bits/types.h> #include <bits/sigset.h> /* __sigset_t, __sig_atomic_t. */ -#if defined _SIGNAL_H && defined __USE_XOPEN && !defined pid_t -typedef __pid_t pid_t; -# define pid_t pid_t -#endif /* Unix98 */ - -#if !defined __sig_atomic_t_defined \ - && (defined _SIGNAL_H || defined __need_sig_atomic_t) /* An integral type that can be modified atomically, without the possibility of a signal arriving in the middle of the operation. */ +#ifndef __sig_atomic_t_defined +# if defined __need_sig_atomic_t || defined _SIGNAL_H +# undef __need_sig_atomic_t +# define __sig_atomic_t_defined 1 typedef __sig_atomic_t sig_atomic_t; -# define __sig_atomic_t_defined -#endif /* `sig_atomic_t' undefined and <signal.h> or need `sig_atomic_t'. */ -#undef __need_sig_atomic_t +# endif +#endif + +#ifndef __sigset_t_defined +# if defined __need_sigset_t || (defined _SIGNAL_H && defined __USE_POSIX) +# undef __need_sigset_t +# define __sigset_t_defined 1 +typedef __sigset_t sigset_t; +# endif +#endif #ifdef _SIGNAL_H +#include <bits/types.h> #include <bits/signum.h> +#if defined __USE_XOPEN && !defined pid_t +typedef __pid_t pid_t; +# define pid_t pid_t +#endif /* Unix98 */ + + /* Type of a signal handler. */ typedef void (*__sighandler_t) __PMT ((int)); @@ -120,7 +131,7 @@ extern void psignal __P ((int __sig, __const char *__s)); selects the X/Open version. */ extern int __sigpause __P ((int __sig_or_mask, int __is_sig)); -#if defined __USE_BSD || defined __USE_GNU +#ifdef __USE_BSD /* Set the mask of blocked signals to MASK, wait for a signal to arrive, and then restore the mask. */ extern int sigpause __P ((int __mask)); @@ -166,20 +177,8 @@ typedef __sighandler_t sighandler_t; typedef __sighandler_t sig_t; #endif -#endif /* <signal.h> included. */ - - -#if !defined __sigset_t_defined \ - && ((defined _SIGNAL_H && defined __USE_POSIX) || defined __need_sigset_t) -typedef __sigset_t sigset_t; -# define __sigset_t_defined 1 -#endif /* `sigset_t' not defined and <signal.h> or need `sigset_t'. */ -#undef __need_sigset_t - #ifdef __USE_POSIX -# ifdef _SIGNAL_H - /* We need `struct timespec' later on. */ # define __need_timespec # include <time.h> @@ -253,11 +252,9 @@ extern int sigtimedwait __P ((__const sigset_t *__set, siginfo_t *__info, extern int sigqueue __P ((__pid_t __pid, int __sig, __const union sigval __val)); -# endif /* <signal.h> included. */ - #endif /* Use POSIX. */ -#if defined _SIGNAL_H && defined __USE_BSD +#ifdef __USE_BSD /* Names of the signals. This variable exists only for compatibility. Use `strsignal' instead (see <string.h>). */ @@ -295,13 +292,10 @@ extern int sigvec __P ((int __sig, __const struct sigvec *__vec, /* Restore the state saved in SCP. */ extern int sigreturn __P ((struct sigcontext *__scp)); -#endif /* signal.h included and use BSD. */ - +#endif /* use BSD. */ -#if defined _SIGNAL_H && (defined __USE_BSD || defined __USE_XOPEN_EXTENDED) -# define __need_size_t -# include <stddef.h> +#if defined __USE_BSD || defined __USE_XOPEN_EXTENDED /* If INTERRUPT is nonzero, make signal SIG interrupt system calls (causing them to fail with EINTR); if INTERRUPT is zero, make system @@ -321,10 +315,9 @@ extern int sigstack __P ((__const struct sigstack *__ss, extern int sigaltstack __P ((__const struct sigaltstack *__ss, struct sigaltstack *__oss)); -#endif /* signal.h included and use BSD or X/Open Unix. */ - +#endif /* use BSD or X/Open Unix. */ -#if defined _SIGNAL_H && defined __USE_UNIX98 +#ifdef __USE_UNIX98 /* Simplified interface for signal management. */ /* Add SIG to the calling process' signal mask. */ @@ -338,7 +331,7 @@ extern int sigignore __P ((int __sig)); /* Set the disposition of SIG. */ extern __sighandler_t sigset __P ((int __sig, __sighandler_t __disp)); -#endif +#endif /* use Unix98 */ #ifdef __USE_POSIX /* Some of the functions for handling signals in threaded programs must @@ -357,6 +350,8 @@ extern int __libc_current_sigrtmax __P ((void)); /* Allocate real-time signal with highest/lowest available priority. */ extern int __libc_allocate_rtsig __P ((int __high)); +#endif /* signal.h */ + __END_DECLS -#endif /* signal.h */ +#endif /* not signal.h */ diff --git a/sysdeps/generic/segfault.c b/sysdeps/generic/segfault.c index 5a9e64a105..b0778df6fc 100644 --- a/sysdeps/generic/segfault.c +++ b/sysdeps/generic/segfault.c @@ -163,6 +163,23 @@ install_handler (void) sigemptyset (&sa.sa_mask); sa.sa_flags = SA_RESTART; + /* Maybe we are expected to use an alternative stack. */ + if (getenv ("SEGFAULT_USE_ALTSTACK") != 0) + { + void *stack_mem = malloc (2 * SIGSTKSZ); + struct sigaltstack ss; + + if (stack_mem != NULL) + { + ss.ss_sp = stack_mem; + ss.ss_flags = 0; + ss.ss_size = 2 * SIGSTKSZ; + + if (sigaltstack (&ss, NULL) == 0) + sa.sa_flags |= SA_ONSTACK; + } + } + if (sigs == NULL) sigaction (SIGSEGV, &sa, NULL); else if (sigs[0] == '\0') @@ -191,20 +208,4 @@ install_handler (void) INSTALL_FOR_SIG (SIGABRT, "abrt"); INSTALL_FOR_SIG (SIGFPE, "fpe"); } - - /* Maybe we are expected to use an alternative stack. */ - if (getenv ("SEGFAULT_USE_ALTSTACK") != 0) - { - void *stack_mem = malloc (2 * SIGSTKSZ); - struct sigaltstack ss; - - if (stack_mem != NULL) - { - ss.ss_sp = stack_mem; - ss.ss_flags = SS_ONSTACK; - ss.ss_size = 2 * SIGSTKSZ; - - sigaltstack (&ss, NULL); - } - } } diff --git a/sysdeps/i386/i486/bits/string.h b/sysdeps/i386/i486/bits/string.h index 921c66498e..134f117377 100644 --- a/sysdeps/i386/i486/bits/string.h +++ b/sysdeps/i386/i486/bits/string.h @@ -329,7 +329,7 @@ __STRING_INLINE void * memchr (__const void *__s, int __c, size_t __n) { register unsigned long int __d0; - register void *__res; + register unsigned char *__res; if (__n == 0) return NULL; #ifdef __i686__ diff --git a/wcsmbs/wchar.h b/wcsmbs/wchar.h index 0bf9c7c5b9..0bd50f7c60 100644 --- a/wcsmbs/wchar.h +++ b/wcsmbs/wchar.h @@ -244,9 +244,6 @@ extern __inline size_t mbrlen (__const char *__restrict __s, size_t __n, /* Write wide character representation of multibyte character string SRC to DST. */ -extern size_t __mbsrtowcs __P ((wchar_t *__restrict __dst, - __const char **__restrict __src, - size_t __len, mbstate_t *__restrict __ps)); extern size_t mbsrtowcs __P ((wchar_t *__restrict __dst, __const char **__restrict __src, size_t __len, mbstate_t *__restrict __ps)); |