glibc/assert/assert.c

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/* Copyright (C) 1991-2016 Free Software Foundation, Inc.
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
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the 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,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
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#include <assert.h>
#include <atomic.h>
#include <ldsodefs.h>
#include <libintl.h>
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#include <stdio.h>
#include <stdlib.h>
#include <sysdep.h>
#include <unistd.h>
#include <sys/mman.h>
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extern const char *__progname;
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#include <wchar.h>
#include <libio/iolibio.h>
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#define fflush(s) _IO_fflush (s)
Update. 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>.
1998-07-16 19:44:36 +08:00
1995-02-18 09:27:10 +08:00
/* This function, when passed a string containing an asserted
expression, a filename, and a line number, prints a message
on the standard error stream of the form:
a.c:10: foobar: Assertion `a == b' failed.
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It then aborts program execution via a call to `abort'. */
#ifdef FATAL_PREPARE_INCLUDE
Update. 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>.
1998-07-16 19:44:36 +08:00
# include FATAL_PREPARE_INCLUDE
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#endif
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void
__assert_fail_base (const char *fmt, const char *assertion, const char *file,
unsigned int line, const char *function)
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{
char *str;
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#ifdef FATAL_PREPARE
FATAL_PREPARE;
#endif
int total;
if (__asprintf (&str, fmt,
__progname, __progname[0] ? ": " : "",
file, line,
function ? function : "", function ? ": " : "",
assertion, &total) >= 0)
{
/* Print the message. */
(void) __fxprintf (NULL, "%s", str);
(void) fflush (stderr);
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total = (total + 1 + GLRO(dl_pagesize) - 1) & ~(GLRO(dl_pagesize) - 1);
struct abort_msg_s *buf = __mmap (NULL, total, PROT_READ | PROT_WRITE,
MAP_ANON | MAP_PRIVATE, -1, 0);
if (__glibc_likely (buf != MAP_FAILED))
{
buf->size = total;
strcpy (buf->msg, str);
/* We have to free the old buffer since the application might
catch the SIGABRT signal. */
struct abort_msg_s *old = atomic_exchange_acq (&__abort_msg, buf);
if (old != NULL)
__munmap (old, old->size);
}
free (str);
}
else
{
/* At least print a minimal message. */
static const char errstr[] = "Unexpected error.\n";
__libc_write (STDERR_FILENO, errstr, sizeof (errstr) - 1);
}
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abort ();
}
#undef __assert_fail
void
__assert_fail (const char *assertion, const char *file, unsigned int line,
const char *function)
{
__assert_fail_base (_("%s%s%s:%u: %s%sAssertion `%s' failed.\n%n"),
assertion, file, line, function);
}
hidden_def(__assert_fail)