[Bug c/43556] New: Ubuntu : segmentation fault in strchr() obtained with gcc4.4.3 and not with gcc4.4.1
My system is Ubuntu 64 bits Lucid Lynx.
with this following small program, I obtain a crazy segmentation fault in
strchr() with gcc4.4.3-4ubuntu5 AND NOT with gcc4.4.1-4ubuntu9 (with same glibc
in both case) :
// gcc (Ubuntu 4.4.3-4ubuntu5) 4.4.3 -> execution gives a "segmentation fault"
// gcc (Ubuntu 4.4.1-4ubuntu9) 4.4.1 -> execution is fully OK
#include
#include
char t[]="It: is a gcc4.4.3 bug";
main() {
char *p;
puts(t);
p = strchr(t, ':');
printf("p='%s'\n", p);
return 0;
}
Many best regards.
Eric.
--
Summary: Ubuntu : segmentation fault in strchr() obtained with
gcc4.4.3 and not with gcc4.4.1
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: critical
Priority: P3
Component: c
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: eric dot cabret at gmail dot com
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43556
[Bug c/43556] Ubuntu : segmentation fault in strchr() obtained with gcc4.4.3 and not with gcc4.4.1
--- Comment #2 from eric dot cabret at gmail dot com 2010-03-28 20:34 --- Created an attachment (id=20234) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20234&action=view) Preprocessed source not OK with "gcc -E main.c" -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43556
[Bug c/43556] Ubuntu : segmentation fault in strchr() obtained with gcc4.4.3 and not with gcc4.4.1
--- Comment #3 from eric dot cabret at gmail dot com 2010-03-28 20:34 --- Created an attachment (id=20235) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20235&action=view) Preprocessed source OK with "gcc -E main.c" -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43556
[Bug c/43556] Ubuntu : segmentation fault in strchr() obtained with gcc4.4.3 and not with gcc4.4.1
--- Comment #4 from eric dot cabret at gmail dot com 2010-03-28 20:35 --- Created an attachment (id=20236) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20236&action=view) a.out OK obtained by command "gcc main.c" -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43556
[Bug c/43556] Ubuntu : segmentation fault in strchr() obtained with gcc4.4.3 and not with gcc4.4.1
--- Comment #5 from eric dot cabret at gmail dot com 2010-03-28 20:36 --- Created an attachment (id=20237) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20237&action=view) a.out not OK obtained by command "gcc main.c" -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43556
[Bug c/43556] Ubuntu : segmentation fault in strchr() obtained with gcc4.4.3 and not with gcc4.4.1
--- Comment #6 from eric dot cabret at gmail dot com 2010-03-28 20:37 --- Here are new files (preprocessed sources OK and not OK) and binaries obtained only with command "gcc main.c" -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43556
[Bug c/43556] Ubuntu : segmentation fault in strchr() obtained with gcc4.4.3 and not with gcc4.4.1
--- Comment #7 from eric dot cabret at gmail dot com 2010-03-28 20:45 --- Created an attachment (id=20238) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20238&action=view) a.out OK obtained by command "gcc -g main.c" (with debug infos on 64bit ubuntu) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43556
[Bug c/43556] Ubuntu : segmentation fault in strchr() obtained with gcc4.4.3 and not with gcc4.4.1
--- Comment #8 from eric dot cabret at gmail dot com 2010-03-28 20:45 --- Created an attachment (id=20239) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20239&action=view) a.out not OK obtained by command "gcc -g main.c" (with debug infos on 64bit ubuntu) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43556
[Bug c/43556] Ubuntu : segmentation fault in strchr() obtained with gcc4.4.3 and not with gcc4.4.1
--- Comment #9 from eric dot cabret at gmail dot com 2010-03-28 20:52 --- Created an attachment (id=20240) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20240&action=view) File obtained with command "strace -s 1024 ./a_ok_withdebug.out > strace_s1024_a_ok.txt 2>&1" -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43556
[Bug c/43556] Ubuntu : segmentation fault in strchr() obtained with gcc4.4.3 and not with gcc4.4.1
--- Comment #10 from eric dot cabret at gmail dot com 2010-03-28 20:52 --- Created an attachment (id=20241) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20241&action=view) File obtained with command "strace -s 1024 ./a_nok_withdebug.out > strace_s1024_a_nok.txt 2>&1" -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43556
[Bug c/43556] Ubuntu : segmentation fault in strchr() obtained with gcc4.4.3 and not with gcc4.4.1
--- Comment #11 from eric dot cabret at gmail dot com 2010-03-28 21:01 --- Created an attachment (id=20242) --> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=20242&action=view) File obtained with command "strace -s 1024 ./a_nok_withdebug.out > strace_s1024_a_nok.txt 2>&1" (executed on the SAME SYSTEM than file attachment #20240 that was OK) -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43556
[Bug middle-end/43556] Ubuntu : segmentation fault in strchr() obtained with gcc4.4.3 and not with gcc4.4.1
--- Comment #24 from eric dot cabret at gmail dot com 2010-03-29 20:44 --- I checked on my Ubuntu 64bit Lucid Lynx system that generates bad binary : 1) binutils (2.20.1-3ubuntu1) is installed 2) binutils-gold (2.20-0ubuntu2) is NOT installed (In reply to comment #23) > only seen with gold (2.20.1). gold from the trunk does work. > -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43556
[Bug middle-end/43556] Ubuntu : segmentation fault in strchr() obtained with gcc4.4.3 and not with gcc4.4.1
--- Comment #25 from eric dot cabret at gmail dot com 2010-03-29 21:48 --- I've reported this problem to Ubuntu at this following URL : https://bugs.launchpad.net/ubuntu/+bug/551245 -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43556
