gcc version 2.95.3-5: assert() does not work as expected
Torrisi Fabio
torrisi@aut.ee.ethz.ch
Wed Jan 9 03:20:00 GMT 2002
Dear maintainers,
Please consider the following bug:
Problem:
assert does not work as written in the manual
symptom:
If I register a signal handler for SIGABRT it does not get called by assert
As the man pages claim:
assert(3)
When expression evaluates to false (zero), assert calls
abort, after first printing a message showing what failed
and where:
and
abort(3)
Before terminating your program, abort raises the excep-
tion SIGABRT (using ` raise(SIGABRT)'). If you have used
signal to register an exception handler for this condi-
tion, that handler has the opportunity to retain control,
thereby avoiding program termination.
therefore assert should go trough the signal handler if it evaluated FALSE.
This indeed happens in Unix and in linux
The problem can be reproduced compiling the enclosed main.cc file
The problem was experimented under windows 98 running
gcc version 2.95.3-5 (cygwin special) (more details in the enclosed
cygcheck.out
file)
Regards,
Fabio Torrisi
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#include <stdio.h>
#include <fstream.h>
#include <signal.h>
#include <string>
/**
* Handle a big failure: segmentation fault or abort signal by simply
* printing out the email address to complain with
*/
void failure_handler(int sig) {
string error;
if (sig == SIGSEGV) error = "Segmentation fault";
else if (sig == SIGABRT) error = "Abort signal";
else error = "Unknown";
cerr << "The program crashed due to some internal error (" << error << ")\n";
cerr << "Please report the error message to maintainer@mantain \n";
exit(1);
}
/******************************************************************************
* Main function
******************************************************************************/
int
main(void)
{
// register the internal error handelrs
signal(SIGABRT, &failure_handler);
signal(SIGSEGV, &failure_handler);
// try out
assert(0);
return 0;
}
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Cygnus Win95/NT Configuration Diagnostics
Current System Time: Wed Jan 09 12:14:02 2002
Windows 98 SE Ver 4.10 Build 2222
Path: C:\usr\cygwin\usr\local\bin
C:\usr\cygwin\bin
C:\usr\cygwin\bin
c:\WINDOWS
c:\windows
c:\windows\COMMAND
c:\USR\BIN
c:\USR\PERL\BIN
c:\USR\MATLABR11\BIN
c:\USR\TEXMF\MIKTEX\BIN
c:\USR\ALADDIN\GS6.01\BIN
c:\USR\IMAGEMAGICK
c:\USR\ILOG\CPLEX70\BIN\MSVC6\STAT_MDA
c:\USR\NAG5\DLL
c:\USR\TCL\BIN
SysDir: C:\WINDOWS\SYSTEM
WinDir: C:\WINDOWS
HOME = `d:\home\torrisi'
MAKE_MODE = `unix'
PWD = `/home/torrisi/windesktop/test'
USER = `torrisi'
BLASTER = `A220 I5 D1 T4 P330'
CMDLINE = `rxvt -fn "-*-Courier-medium-r-*-13-*" -geometry 80x26+10+330 -sl 5000 -e /usr/bin/bash --login -i'
COLORFGBG = `0;default;15'
COLORTERM = `rxvt-xpm'
COMSPEC = `C:\WINDOWS\COMMAND.COM'
DISPLAY = `:0'
OLDPWD = `/home/torrisi'
PROMPT = `$p$g'
PS1 = `\[\033]0;\w\007
\033[32m\]\u@\h \[\033[33m\w\033[0m\]
$ '
SHLVL = `1'
TEMP = `c:\windows\temp'
TERM = `xterm'
WINBOOTDIR = `C:\WINDOWS'
WINDIR = `C:\WINDOWS'
WINDOWID = `72945808'
_ = `/usr/bin/cygcheck'
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder\Start Menu\&Programs\Development\Cygnus Solutions
(default) = (unsupported type)
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder\Start Menu\&Programs\Development\Languages\Cygnus Solutions
(default) = (unsupported type)
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MenuOrder\Start Menu\&Programs\Cygnus Solutions
(default) = (unsupported type)
HKEY_CURRENT_USER\Software\Cygnus Solutions
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2
(default) = `/cygdrive'
cygdrive flags = 0x00000022
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2\/home
(default) = `d:\home'
flags = 0x00000000
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\Program Options
HKEY_LOCAL_MACHINE\Software\Cygnus Solutions
HKEY_LOCAL_MACHINE\Software\Cygnus Solutions\Cygwin
HKEY_LOCAL_MACHINE\Software\Cygnus Solutions\Cygwin\mounts v2
HKEY_LOCAL_MACHINE\Software\Cygnus Solutions\Cygwin\mounts v2\/
(default) = `C:/usr/cygwin'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\Software\Cygnus Solutions\Cygwin\mounts v2\/usr/bin
(default) = `C:/usr/cygwin/bin'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\Software\Cygnus Solutions\Cygwin\mounts v2\/usr/lib
(default) = `C:/usr/cygwin/lib'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\Software\Cygnus Solutions\Cygwin\Program Options
a: fd N/A N/A
c: hd FAT32 8181Mb 62% CP UN
d: hd FAT32 3303Mb 49% CP UN
f: cd CDFS 179Mb 100% UN Data
s: fd N/A N/A
d:\home /home user textmode
. /cygdrive user binmode,noumount
C:/usr/cygwin / system binmode
C:/usr/cygwin/bin /usr/bin system binmode
C:/usr/cygwin/lib /usr/lib system binmode
Found: C:\usr\cygwin\bin\bash.exe
Found: C:\usr\cygwin\bin\cat.exe
Found: C:\usr\cygwin\bin\cpp.exe
Found: C:\usr\cygwin\bin\find.exe
Found: c:\windows\COMMAND\find.exe
Warning: C:\usr\cygwin\bin\find.exe hides c:\windows\COMMAND\find.exe
Found: C:\usr\cygwin\bin\gcc.exe
Found: C:\usr\cygwin\bin\gdb.exe
Found: C:\usr\cygwin\bin\ld.exe
Found: C:\usr\cygwin\bin\ls.exe
Found: C:\usr\cygwin\bin\make.exe
Found: C:\usr\cygwin\bin\sh.exe
81k 2001/10/20 C:\usr\cygwin\bin\cygitcl30.dll - os=4.0 img=1.0 sys=4.0
"cygitcl30.dll" v0.0 ts=2001/10/20 2:25
35k 2001/10/20 C:\usr\cygwin\bin\cygitk30.dll - os=4.0 img=1.0 sys=4.0
"cygitk30.dll" v0.0 ts=2001/10/20 2:25
390k 2001/10/20 C:\usr\cygwin\bin\cygtcl80.dll - os=4.0 img=1.0 sys=4.0
"cygtcl80.dll" v0.0 ts=2001/10/20 2:24
5k 2001/10/20 C:\usr\cygwin\bin\cygtclpip80.dll - os=4.0 img=1.0 sys=4.0
10k 2001/10/20 C:\usr\cygwin\bin\cygtclreg80.dll - os=4.0 img=1.0 sys=4.0
"cygtclreg80.dll" v0.0 ts=2001/10/20 2:24
623k 2001/10/20 C:\usr\cygwin\bin\cygtk80.dll - os=4.0 img=1.0 sys=4.0
"cygtk80.dll" v0.0 ts=2001/10/20 2:25
18k 2000/10/23 C:\usr\cygwin\bin\cyggdbm.dll - os=4.0 img=1.0 sys=4.0
"cyggdbm.dll" v0.0 ts=2000/10/23 4:26
163k 2001/05/06 C:\usr\cygwin\bin\cygpng2.dll - os=4.0 img=1.0 sys=4.0
"cygpng2.dll" v0.0 ts=2001/5/6 6:05
45k 2001/07/04 C:\usr\cygwin\bin\cygjbig1.dll - os=4.0 img=1.0 sys=4.0
"cygjbig1.dll" v0.0 ts=2001/7/4 5:25
119k 2001/06/06 C:\usr\cygwin\bin\cygjpeg6b.dll - os=4.0 img=1.0 sys=4.0
"cygjpeg6b.dll" v0.0 ts=2001/6/6 6:27
821k 2001/11/19 C:\usr\cygwin\bin\cygcrypto.dll - os=4.0 img=1.0 sys=4.0
"cygcrypto.dll" v0.0 ts=2001/11/20 0:42
231k 2001/11/19 C:\usr\cygwin\bin\cygssl.dll - os=4.0 img=1.0 sys=4.0
"cygssl.dll" v0.0 ts=2001/11/20 0:42
17k 2001/06/28 C:\usr\cygwin\bin\cyghistory4.dll - os=4.0 img=1.0 sys=4.0
"cyghistory4.dll" v0.0 ts=2001/1/7 5:34
21k 2001/06/28 C:\usr\cygwin\bin\cyghistory5.dll - os=4.0 img=1.0 sys=4.0
"cyghistory5.dll" v0.0 ts=2001/6/28 4:27
108k 2001/06/28 C:\usr\cygwin\bin\cygreadline4.dll - os=4.0 img=1.0 sys=4.0
"cygreadline4.dll" v0.0 ts=2001/1/7 5:34
135k 2001/06/28 C:\usr\cygwin\bin\cygreadline5.dll - os=4.0 img=1.0 sys=4.0
"cygreadline5.dll" v0.0 ts=2001/6/28 4:27
245k 2001/06/12 C:\usr\cygwin\bin\cygtiff3.dll - os=4.0 img=1.0 sys=4.0
"cygtiff3.dll" v0.0 ts=2001/6/12 19:25
41k 2001/07/04 C:\usr\cygwin\bin\cygXpm-noX4.dll - os=4.0 img=1.0 sys=4.0
"cygXpm-noX4.dll" v0.0 ts=2001/7/4 3:21
45k 2001/07/04 C:\usr\cygwin\bin\cygXpm-X4.dll - os=4.0 img=1.0 sys=4.0
"cygXpm-X4.dll" v0.0 ts=2000/11/20 3:45
49k 2001/02/03 C:\usr\cygwin\bin\cygz.dll - os=4.0 img=1.0 sys=4.0
"cygz.dll" v0.0 ts=2001/2/3 21:35
56k 2000/12/03 C:\usr\cygwin\bin\cygbz21.0.dll - os=4.0 img=1.0 sys=4.0
"cygbz21.0.dll" v0.0 ts=2000/11/21 0:53
40k 2001/11/21 C:\usr\cygwin\bin\cygpcre.dll - os=4.0 img=1.0 sys=4.0
"cygpcre.dll" v0.0 ts=2001/11/21 23:15
102k 2001/12/06 C:\usr\cygwin\bin\cygcurl-2.dll - os=4.0 img=1.0 sys=4.0
"cygcurl-2.dll" v0.0 ts=2001/12/6 19:45
34k 2001/09/30 C:\usr\cygwin\bin\cygform6.dll - os=4.0 img=1.0 sys=4.0
"cygform6.dll" v0.0 ts=2001/9/30 4:43
19k 2001/09/30 C:\usr\cygwin\bin\cygmenu6.dll - os=4.0 img=1.0 sys=4.0
"cygmenu6.dll" v0.0 ts=2001/9/30 4:43
175k 2001/09/30 C:\usr\cygwin\bin\cygncurses++6.dll - os=4.0 img=1.0 sys=4.0
"cygncurses++6.dll" v0.0 ts=2001/9/30 4:45
201k 2001/09/30 C:\usr\cygwin\bin\cygncurses6.dll - os=4.0 img=1.0 sys=4.0
"cygncurses6.dll" v0.0 ts=2001/9/30 4:42
12k 2001/09/30 C:\usr\cygwin\bin\cygpanel6.dll - os=4.0 img=1.0 sys=4.0
"cygpanel6.dll" v0.0 ts=2001/9/30 4:43
21k 2001/06/20 C:\usr\cygwin\bin\cygintl.dll - os=4.0 img=1.0 sys=4.0
"cygintl.dll" v0.0 ts=2001/6/20 19:09
39k 2001/11/21 C:\usr\cygwin\bin\cygpcreposix.dll - os=4.0 img=1.0 sys=4.0
"cygpcreposix.dll" v0.0 ts=2001/11/21 23:15
66k 2001/11/20 C:\usr\cygwin\bin\cygregex.dll - os=4.0 img=1.0 sys=4.0
"cygregex.dll" v0.0 ts=2001/11/20 15:44
22k 2001/12/13 C:\usr\cygwin\bin\cygintl-1.dll - os=4.0 img=1.0 sys=4.0
"cygintl-1.dll" v0.0 ts=2001/12/13 10:28
610k 2001/12/28 C:\usr\cygwin\bin\cygxml2-2.dll - os=4.0 img=1.0 sys=4.0
"cygxml2-2.dll" v0.0 ts=2001/12/28 13:49
73k 2001/12/28 C:\usr\cygwin\bin\cygexslt-0.dll - os=4.0 img=1.0 sys=4.0
"cygexslt-0.dll" v0.0 ts=2001/12/28 12:50
202k 2001/12/28 C:\usr\cygwin\bin\cygxslt-1.dll - os=4.0 img=1.0 sys=4.0
"cygxslt-1.dll" v0.0 ts=2001/12/28 12:13
22k 2001/12/28 C:\usr\cygwin\bin\cygxsltbreakpoint-1.dll - os=4.0 img=1.0 sys=4.0
"cygxsltbreakpoint-1.dll" v0.0 ts=2001/12/28 12:50
720k 2001/12/08 C:\usr\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
"cygwin1.dll" v0.0 ts=2001/12/8 23:02
Cygwin DLL version info:
DLL version: 1.3.6
DLL epoch: 19
DLL bad signal mask: 19005
DLL old termios: 5
DLL malloc env: 28
API major: 0
API minor: 47
Shared data: 3
DLL identifier: cygwin1
Mount registry: 2
Cygnus registry name: Cygnus Solutions
Cygwin registry name: Cygwin
Program options name: Program Options
Cygwin mount registry name: mounts v2
Cygdrive flags: cygdrive flags
Cygdrive prefix: cygdrive prefix
Cygdrive default prefix:
Build date: Sat Dec 8 17:02:30 EST 2001
CVS tag: cygwin-1-3-6-6
Shared id: cygwin1S3
Cygwin Package Information
Last downloaded files to: D:\home\torrisi\windesktop\gcc
Last downloaded files from: ftp://sunsite.cnlab-switch.ch/mirror/cygwin
Package Version
ash 20011018-1
autoconf 2.52a-1
autoconf-devel 2.52-4
autoconf-stable 2.13-4
automake 1.5b-1
automake-devel 1.5-5
automake-stable 1.4p5-5
bash 2.05a-2
bc 1.06-1
binutils 20011002-1
bison 1.30-1
byacc 1.9-1
bzip2 1.0.1-6
clear 1.0
compface 1.4-5
cpio 2.4.2
cron 3.0.1-5
crypt 1.0-1
ctags 5.2-1
curl 7.9.2-1
curl-src 7.9.2-1
cvs 1.11.0-1
cygrunsrv 0.94-2
cygutils 0.9.7-1
cygwin 1.3.6-6
dejagnu 20010117-1
diff 0.0
ed 0.2-1
expect 20010117-1
figlet 2.2-1
file 3.37-1
fileutils 4.1-1
findutils 4.1
flex 2.5.4-1
fortune 1.8-1
gawk 3.0.4-1
gcc 2.95.3-5
gdb 20010428-3
gdbm 1.8.0-3
gettext 0.10.40-1
ghostscript 6.51-1
gperf 0.0
grep 2.4.2-1
groff 1.17.2-1
gzip 1.3.2-1
indent 2.2.7-2
inetutils 1.3.2-17
irc 20010101-1
jbigkit 1.2-4
jpeg 6b-4
less 358-3
libintl 0.10.38-3
libintl1 0.10.40-1
libncurses5 5.2-1
libncurses6 5.2-2
libpng 1.0.11-1
libxml2 2.4.12-1
libxslt 1.0.9-1
login 1.4-3
lynx 2.8.4-1
m4 0.0
make 3.79.1-5
man 1.5g-2
mingw 20010917-1
mingw-runtime 1.2-1
mktemp 1.4-1
mt 2.0.1-1
mutt 1.2.5i-6
nano 1.0.7-1
ncftp 3.0.2-2
ncurses 5.2-7
newlib-man 20001118-1
opengl 1.1.0-5
openssh 3.0.2p1-3
openssl 0.9.6b-2
patch 2.5-2
pcre 3.7-1
perl 5.6.1-2
popt 1.6.2-1
postgresql 7.1.3-1
python 2.2-1
readline 4.2-3
regex 4.4-2
robots 2.0-1
rsync 2.4.6-3
rxvt 2.7.2-6
sed 3.02-1
sh-utils 2.0-2
sharutils 4.2.1-2
shellutils 0.0
shutdown 1.2-2
squid 2.4-STABLE20010508
ssmtp 2.38.7-3
tar 1.13.19-1
tcltk 20001125-1
tcsh 6.11.00-3
termcap 20010825-1
terminfo 5.2-1
tetex-beta 20001218-1
texinfo 4.0-5
textutils 2.0.16-1
tiff 3.5.6beta-2
time 1.7-1
units 1.77-1
unzip 5.41-1
vim 6.0.93-1
w32api 1.2-1
wget 1.7-1
which 1.5-1
xpm 4.0.0-2
xpm-nox 4.1.0-1
zip 2.3-1
zlib 1.1.3-6
Use -h to see help about each section
-------------- next part --------------
---
Fabio D. Torrisi http://www.aut.ee.ethz.ch/~torrisi
-------------- next part --------------
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