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1998-07-16 10:23 Ulrich Drepper <drepper@cygnus.com> * argp/argp-fmtstream.c: Unify names of used global functions. * argp/argp-help.c: Likewise. * assert/assert-perr.c: Likewise * assert/assert.c: Likewise * dirent/scandir.c: Likewise * dirent/scandir64.c: Likewise * dirent/versionsort.c: Likewise * dirent/versionsort64.c: Likewise * gmon/bb_exit_func.c: Likewise. * gmon/gmon.c: Likewise. * grp/initgroups.c: Likewise. * iconv/gconv_conf.c: Likewise. * inet/getnameinfo.c: Likewise. * inet/getnetgrent_r.c: Likewise. * inet/inet_ntoa.c: Likewise. * inet/rcmd.c: Likewise. * inet/rexec.c: Likewise. * inet/ruserpass.c: Likewise. * io/fts.c: Likewise. * io/ftw.c: Likewise. * io/ftw64.c: Likewise. * io/getdirname.c: Likewise. * io/getwd.c: Likewise. * io/lockf.c: Likewise. * libio/iofdopen.c: Likewise. * libio/iopopen.c: Likewise. * login/utmp_daemon.c: Likewise. * malloc/mtrace.c: Likewise. * malloc/obstack.c * misc/daemon.c: Likewise. * misc/efgcvt_r.c: Likewise. * misc/err.c: Likewise. * misc/error.c: Likewise. * misc/fstab.c: Likewise. * misc/getpass.c: Likewise. * misc/getttyent.c: Likewise. * misc/mntent_r.c: Likewise. * misc/search.h: Likewise. * misc/syslog.c: Likewise. * nscd/nscd_getgr_r.c: Likewise. * nscd/nscd_getpw_r.c: Likewise. * posix/getpgrp.c: Likewise. * posix/wordexp.c: Likewise. * pwd/fgetpwent_r.c: Likewise. * pwd/getpw.c: Likewise. * resolv/herror.c: Likewise. * resolv/res_init.c: Likewise. * shadow/fgetspent_r.c: Likewise. * shadow/lckpwdf.c: Likewise. * signal/sigrelse.c: Likewise. * stdio-common/asprintf.c: Likewise. * stdio-common/dprintf.c: Likewise. * stdio-common/getw.c: Likewise. * stdio-common/putw.c: Likewise. * stdio-common/snprintf.c: Likewise. * stdio-common/sprintf.c: Likewise. * stdio-common/sscanf.c: Likewise. * stdlib/lrand48_r.c: Likewise. * stdlib/mrand48_r.c: Likewise. * string/argz-replace.c: Likewise. * string/envz.c: Likewise. * sunrpc/auth_des.c: Likewise. * sunrpc/auth_unix.c: Likewise. * sunrpc/bindrsvprt.c: Likewise. * sunrpc/clnt_gen.c: Likewise. * sunrpc/clnt_perr.c: Likewise. * sunrpc/clnt_simp.c: Likewise. * sunrpc/clnt_tcp.c: Likewise. * sunrpc/clnt_udp.c: Likewise. * sunrpc/get_myaddr.c: Likewise. * sunrpc/key_call.c: Likewise. * sunrpc/netname.c: Likewise. * sunrpc/openchild.c: Likewise. * sunrpc/pmap_rmt.c: Likewise. * sunrpc/rpc_dtable.c: Likewise. * sunrpc/rtime.c: Likewise. * sunrpc/svc_run.c: Likewise. * sunrpc/svc_simple.c: Likewise. * sunrpc/svc_tcp.c: Likewise. * sunrpc/svc_udp.c: Likewise. * sunrpc/svcauth_des.c: Likewise. * sunrpc/xdr_array.c: Likewise. * sunrpc/xdr_rec.c: Likewise. * sunrpc/xdr_ref.c: Likewise. * sunrpc/xdr_stdio.c: Likewise. * sysdeps/generic/abort.c: Likewise. * sysdeps/generic/dl-sysdep.c: Likewise. * sysdeps/generic/fstatfs64.c: Likewise. * sysdeps/generic/ftruncate64.c: Likewise. * sysdeps/generic/getrlimit64.c: Likewise. * sysdeps/generic/glob.c: Likewise. * sysdeps/generic/prof-freq.c: Likewise. * sysdeps/generic/putenv.c: Likewise. * sysdeps/generic/statfs64.c: Likewise. * sysdeps/generic/ttyname_r.c: Likewise. * sysdeps/generic/utmp_file.c: Likewise. * sysdeps/generic/vlimit.c: Likewise. * sysdeps/generic/vtimes.c: Likewise. * sysdeps/posix/cuserid.c: Likewise. * sysdeps/posix/euidaccess.c: Likewise. * sysdeps/posix/mkstemp.c: Likewise. * sysdeps/posix/mktemp.c: Likewise. * sysdeps/posix/pread.c: Likewise. * sysdeps/posix/pread64.c: Likewise. * sysdeps/posix/profil.c: Likewise. * sysdeps/posix/pwrite.c: Likewise. * sysdeps/posix/pwrite64.c: Likewise. * sysdeps/posix/sigblock.c: Likewise. * sysdeps/posix/sigpause.c: Likewise. * sysdeps/posix/ttyname.c: Likewise. * sysdeps/posix/ttyname_r.c: Likewise. * sysdeps/posix/waitid.c: Likewise. * sysdeps/unix/getlogin_r.c: Likewise. * sysdeps/unix/grantpt.c: Likewise. * sysdeps/unix/rewinddir.c: Likewise. * sysdeps/unix/sysv/linux/gethostid.c: Likewise. * sysdeps/unix/sysv/linux/getpt.c: Likewise. * sysdeps/unix/sysv/linux/if_index.c: Likewise. * sysdeps/unix/sysv/linux/ptsname.c: Likewise. * sysdeps/unix/sysv/linux/sendmsg.c: Likewise. * sysdeps/unix/sysv/linux/statvfs.c: Likewise. * sysdeps/unix/sysv/linux/ttyname.c: Likewise. * sysdeps/unix/sysv/linux/ttyname_r.c: Likewise. * sysdeps/unix/sysv/linux/ulimit.c: Likewise. * sysdeps/unix/sysv/linux/unlockpt.c: Likewise. * sysvipc/sys/shm.h: Likewise. * time/ctime_r.c: Likewise. * time/strptime.c: Likewise. * wcsmbs/mbrlen.c: Likewise. * wcsmbs/wcsdup.c: Likewise. * wcsmbs/wcsxfrm.c: Likewise. * wctype/wcfuncs.c: Likewise. * sysdeps/unix/sysv/linux/i386/socker.S: Change to honor NO_WEAK_ALIAS. * sysdeps/unix/sysv/linux/accept.S: Don't generate __ name. * sysdeps/unix/sysv/linux/bind.S: Likewise. * sysdeps/unix/sysv/linux/getsockname.S: Likewise. * sysdeps/unix/sysv/linux/listen.S: Likewise. * sysdeps/unix/sysv/linux/recvfrom.S: Likewise. * sysdeps/unix/sysv/linux/sendto.S: Likewise. * sysdeps/unix/sysv/linux/setsockopt.S: Likewise. * grp/fgetgrent_r.c: Use explicit locking of the stream. * elf/Makefile (rtld-routines): Add dl-environ. * sysdeps/generic/dl-environ.c: New file. * libio/Makefile [REENTRANT] (routines): Add iofputs_u. * libio/Versions: Add fputs_unlocked. * libio/iofputs_u.c: New file. * libio/stdio.h: Add prototype for fputs_unlocked. * sunrpc/rpc/auth.h: Use __PMT instead of __P in type definitions. * sunrpc/rpc/clnt.h: Likewise. * sunrpc/rpc/pmap_clnt.h: Likewise. * sunrpc/rpc/svc.h: Likewise. * sunrpc/rpc/xdr.h: Likewise. * sysdeps/i386/memchr.S: Correct for more strict gas. * sysdeps/i386/fpu/bits/mathinline.h: Likewise. * sysdeps/libm-i387/i686/s_fdim.S: Likewise. * sysdeps/libm-i387/i686/s_fdimf.S: Likewise. * sysdeps/libm-i387/i686/s_fdiml.S: Likewise. 1998-07-15 Andreas Jaeger <aj@arthur.rhein-neckar.de> * configure.in: Change message for binutils version from 2.8.1.0.17->2.8.1.0.23. 1998-07-15 Ulrich Drepper <drepper@cygnus.com> * sysdeps/unix/sysv/sysv4/solaris2/sparc/sysdep.h: Define LOC. Patch by John Tobey <jtobey@banta-im.com>.
139 lines
3.7 KiB
C
139 lines
3.7 KiB
C
/* Copyright (C) 1991, 93, 95, 96, 97, 98 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public
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License along with the GNU C Library; see the file COPYING.LIB. If not,
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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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#include <bits/libc-lock.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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/* Try to get a machine dependent instruction which will make the
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program crash. This is used in case everything else fails. */
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#include <abort-instr.h>
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#ifndef ABORT_INSTRUCTION
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/* No such instruction is available. */
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# define ABORT_INSTRUCTION
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#endif
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#ifdef USE_IN_LIBIO
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# define fflush(s) _IO_fflush (s)
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#endif
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/* We must avoid to run in circles. Therefore we remember how far we
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already got. */
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static int stage;
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/* We should be prepared for multiple threads trying to run abort. */
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__libc_lock_define_initialized_recursive (static, lock);
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/* Cause an abnormal program termination with core-dump. */
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void
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abort (void)
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{
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struct sigaction act;
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sigset_t sigs;
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/* First acquire the lock. */
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__libc_lock_lock_recursive (lock);
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/* Now it's for sure we are alone. But recursive calls are possible. */
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/* Unlock SIGABRT. */
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if (stage == 0)
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{
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++stage;
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if (__sigemptyset (&sigs) == 0 &&
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__sigaddset (&sigs, SIGABRT) == 0)
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__sigprocmask (SIG_UNBLOCK, &sigs, (sigset_t *) NULL);
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}
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/* Flush all streams. We cannot close them now because the user
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might have registered a handler for SIGABRT. */
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if (stage == 1)
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{
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++stage;
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fflush (NULL);
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}
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/* Send signal which possibly calls a user handler. */
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if (stage == 2)
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{
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/* This stage is special: we must allow repeated calls of
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`abort' when a user defined handler for SIGABRT is installed.
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This is risky since the `raise' implementation might also
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fail but I don't see another possibility. */
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int save_stage = stage;
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stage = 0;
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__libc_lock_unlock_recursive (lock);
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raise (SIGABRT);
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__libc_lock_lock_recursive (lock);
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stage = save_stage + 1;
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}
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/* There was a handler installed. Now remove it. */
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if (stage == 3)
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{
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++stage;
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memset (&act, '\0', sizeof (struct sigaction));
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act.sa_handler = SIG_DFL;
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__sigfillset (&act.sa_mask);
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act.sa_flags = 0;
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__sigaction (SIGABRT, &act, NULL);
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}
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/* Now close the streams which also flushes the output the user
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defined handler might has produced. */
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if (stage == 4)
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{
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++stage;
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__fcloseall ();
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}
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/* Try again. */
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if (stage == 5)
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{
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++stage;
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raise (SIGABRT);
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}
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/* Now try to abort using the system specific command. */
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if (stage == 6)
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{
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++stage;
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ABORT_INSTRUCTION;
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}
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/* If we can't signal ourselves and the abort instruction failed, exit. */
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if (stage == 7)
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{
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++stage;
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_exit (127);
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}
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/* If even this fails try to use the provided instruction to crash
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or otherwise make sure we never return. */
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while (1)
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/* Try for ever and ever. */
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ABORT_INSTRUCTION;
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}
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