* [Bug middle-end/26991] Target Help Seg Fault.
2006-04-02 17:22 [Bug c++/26991] New: Target Help Seg Fault dave dot m at email dot it
@ 2006-04-02 17:33 ` pinskia at gcc dot gnu dot org
2006-04-03 17:43 ` pinskia at gcc dot gnu dot org
` (11 subsequent siblings)
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From: pinskia at gcc dot gnu dot org @ 2006-04-02 17:33 UTC (permalink / raw)
To: gcc-bugs
------- Comment #1 from pinskia at gcc dot gnu dot org 2006-04-02 17:33 -------
Can you supply "gcc -v"?
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Severity|trivial |normal
Component|c++ |middle-end
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26991
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug middle-end/26991] Target Help Seg Fault.
2006-04-02 17:22 [Bug c++/26991] New: Target Help Seg Fault dave dot m at email dot it
2006-04-02 17:33 ` [Bug middle-end/26991] " pinskia at gcc dot gnu dot org
@ 2006-04-03 17:43 ` pinskia at gcc dot gnu dot org
2006-06-26 15:03 ` corsepiu at gcc dot gnu dot org
` (10 subsequent siblings)
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From: pinskia at gcc dot gnu dot org @ 2006-04-03 17:43 UTC (permalink / raw)
To: gcc-bugs
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |WAITING
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26991
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug middle-end/26991] Target Help Seg Fault.
2006-04-02 17:22 [Bug c++/26991] New: Target Help Seg Fault dave dot m at email dot it
2006-04-02 17:33 ` [Bug middle-end/26991] " pinskia at gcc dot gnu dot org
2006-04-03 17:43 ` pinskia at gcc dot gnu dot org
@ 2006-06-26 15:03 ` corsepiu at gcc dot gnu dot org
2006-06-26 16:46 ` corsepiu at gcc dot gnu dot org
` (9 subsequent siblings)
12 siblings, 0 replies; 15+ messages in thread
From: corsepiu at gcc dot gnu dot org @ 2006-06-26 15:03 UTC (permalink / raw)
To: gcc-bugs
------- Comment #2 from corsepiu at gcc dot gnu dot org 2006-06-26 14:34 -------
# m68k-rtems4.7-gcc --target-help
Target specific options:
cc1: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
# m68k-rtems4.7-gcc --target-help -v
Using built-in specs.
Target: m68k-rtems4.7
Configured with: ../gcc-4.1.1/configure --prefix=/usr --bindir=/usr/bin
--includedir=/usr/include --libdir=/usr/lib --mandir=/usr/share/man
--infodir=/usr/share/info --datadir=/usr/share --build=i686-redhat-linux-gnu
--host=i686-redhat-linux-gnu --target=m68k-rtems4.7 --with-gnu-as --with-gnu-ld
--verbose --with-newlib --with-system-zlib --disable-nls
--without-included-gettext --disable-win32-registry
--enable-version-specific-runtime-libs --enable-languages=c,c++
Thread model: single
gcc version 4.1.1
/usr/libexec/gcc/m68k-rtems4.7/4.1.1/cc1 -quiet -v help-dummy -quiet -dumpbase
help-dummy -auxbase help-dummy -version --target-help -o /tmp/cclQfte8.s
Target specific options:
cc1: internal compiler error: Segmentation fault
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
--
corsepiu at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |corsepiu at gcc dot gnu dot
| |org
Known to fail| |4.1.1
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26991
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug middle-end/26991] Target Help Seg Fault.
2006-04-02 17:22 [Bug c++/26991] New: Target Help Seg Fault dave dot m at email dot it
` (2 preceding siblings ...)
2006-06-26 15:03 ` corsepiu at gcc dot gnu dot org
@ 2006-06-26 16:46 ` corsepiu at gcc dot gnu dot org
2006-06-26 16:47 ` Andrew Pinski
2006-06-26 16:47 ` pinskia at physics dot uc dot edu
` (8 subsequent siblings)
12 siblings, 1 reply; 15+ messages in thread
From: corsepiu at gcc dot gnu dot org @ 2006-06-26 16:46 UTC (permalink / raw)
To: gcc-bugs
------- Comment #3 from corsepiu at gcc dot gnu dot org 2006-06-26 16:41 -------
Traceback:
Program received signal SIGSEGV, Segmentation fault.
print_filtered_help (flag=4194304) at ../../gcc-4.1.1/gcc/opts.c:1301
(gdb) where
#0 print_filtered_help (flag=4194304) at ../../gcc-4.1.1/gcc/opts.c:1301
#1 0x081f61d7 in decode_options (argc=13, argv=0xbfc6fc34) at
../../gcc-4.1.1/gcc/opts.c:738
#2 0x08243b08 in toplev_main (argc=13, argv=0xbfc6fc34) at
../../gcc-4.1.1/gcc/toplev.c:1975
#3 0x080978f2 in main (argc=0, argv=0x1f9) at ../../gcc-4.1.1/gcc/main.c:35
#4 0x00b68724 in __libc_start_main () from /lib/libc.so.6
#5 0x08049ad1 in _start ()
The offending code is this (From gcc-4.1.1/gcc/opts.c):
1293 const char *help, *opt, *tab;
1294 static char *printed;
1295
1296 if (flag == CL_COMMON || flag == CL_TARGET)
1297 {
1298 filter = flag;
1299 if (!printed)
1300 printed = xmalloc (cl_options_count);
1301 memset (printed, 0, cl_options_count);
1302 }
=> the SEGFAULT occurs in memset.
Could it be, "static char* printed" should be initialized = 0?
I.e. static char* printed = 0;
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26991
^ permalink raw reply [flat|nested] 15+ messages in thread
* Re: [Bug middle-end/26991] Target Help Seg Fault.
2006-06-26 16:46 ` corsepiu at gcc dot gnu dot org
@ 2006-06-26 16:47 ` Andrew Pinski
0 siblings, 0 replies; 15+ messages in thread
From: Andrew Pinski @ 2006-06-26 16:47 UTC (permalink / raw)
To: gcc-bugzilla; +Cc: gcc-bugs
On Jun 26, 2006, at 9:41 AM, corsepiu at gcc dot gnu dot org wrote:
>
>
> ------- Comment #3 from corsepiu at gcc dot gnu dot org 2006-06-26
> 16:41 -------
> Traceback:
>
> => the SEGFAULT occurs in memset.
>
> Could it be, "static char* printed" should be initialized = 0?
Looks like reload is storing to cl_options_count :). There was a 4.2
bug
about this, somehow it got exposed for 4.1.x now.
-- Pinski
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug middle-end/26991] Target Help Seg Fault.
2006-04-02 17:22 [Bug c++/26991] New: Target Help Seg Fault dave dot m at email dot it
` (3 preceding siblings ...)
2006-06-26 16:46 ` corsepiu at gcc dot gnu dot org
@ 2006-06-26 16:47 ` pinskia at physics dot uc dot edu
2006-06-26 16:49 ` [Bug middle-end/26991] [4.1 Regression] " pinskia at gcc dot gnu dot org
` (7 subsequent siblings)
12 siblings, 0 replies; 15+ messages in thread
From: pinskia at physics dot uc dot edu @ 2006-06-26 16:47 UTC (permalink / raw)
To: gcc-bugs
------- Comment #4 from pinskia at physics dot uc dot edu 2006-06-26 16:46 -------
Subject: Re: Target Help Seg Fault.
On Jun 26, 2006, at 9:41 AM, corsepiu at gcc dot gnu dot org wrote:
>
>
> ------- Comment #3 from corsepiu at gcc dot gnu dot org 2006-06-26
> 16:41 -------
> Traceback:
>
> => the SEGFAULT occurs in memset.
>
> Could it be, "static char* printed" should be initialized = 0?
Looks like reload is storing to cl_options_count :). There was a 4.2
bug
about this, somehow it got exposed for 4.1.x now.
-- Pinski
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26991
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug middle-end/26991] [4.1 Regression] Target Help Seg Fault.
2006-04-02 17:22 [Bug c++/26991] New: Target Help Seg Fault dave dot m at email dot it
` (4 preceding siblings ...)
2006-06-26 16:47 ` pinskia at physics dot uc dot edu
@ 2006-06-26 16:49 ` pinskia at gcc dot gnu dot org
2006-06-26 17:01 ` pinskia at gcc dot gnu dot org
` (6 subsequent siblings)
12 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-06-26 16:49 UTC (permalink / raw)
To: gcc-bugs
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |NEW
Ever Confirmed|0 |1
GCC target triplet| |i686-linux-gnu
Known to work| |4.2.0
Last reconfirmed|0000-00-00 00:00:00 |2006-06-26 16:47:30
date| |
Summary|Target Help Seg Fault. |[4.1 Regression] Target Help
| |Seg Fault.
Target Milestone|--- |4.1.2
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26991
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug middle-end/26991] [4.1 Regression] Target Help Seg Fault.
2006-04-02 17:22 [Bug c++/26991] New: Target Help Seg Fault dave dot m at email dot it
` (5 preceding siblings ...)
2006-06-26 16:49 ` [Bug middle-end/26991] [4.1 Regression] " pinskia at gcc dot gnu dot org
@ 2006-06-26 17:01 ` pinskia at gcc dot gnu dot org
2006-06-26 17:06 ` corsepiu at gcc dot gnu dot org
` (5 subsequent siblings)
12 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-06-26 17:01 UTC (permalink / raw)
To: gcc-bugs
------- Comment #5 from pinskia at gcc dot gnu dot org 2006-06-26 16:48 -------
PR 25636 was the 4.2.0 bug and the patch there should fix it if someone
backports it.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
BugsThisDependsOn| |25636
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26991
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug middle-end/26991] [4.1 Regression] Target Help Seg Fault.
2006-04-02 17:22 [Bug c++/26991] New: Target Help Seg Fault dave dot m at email dot it
` (6 preceding siblings ...)
2006-06-26 17:01 ` pinskia at gcc dot gnu dot org
@ 2006-06-26 17:06 ` corsepiu at gcc dot gnu dot org
2006-06-26 17:22 ` pinskia at gcc dot gnu dot org
` (4 subsequent siblings)
12 siblings, 0 replies; 15+ messages in thread
From: corsepiu at gcc dot gnu dot org @ 2006-06-26 17:06 UTC (permalink / raw)
To: gcc-bugs
------- Comment #6 from corsepiu at gcc dot gnu dot org 2006-06-26 17:01 -------
(In reply to comment #5)
> PR 25636 was the 4.2.0 bug and the patch there should fix it if someone
> backports it.
For the record, the compiler exposing this is FC5's gcc-4.1.1-1.fc5
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26991
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug middle-end/26991] [4.1 Regression] Target Help Seg Fault.
2006-04-02 17:22 [Bug c++/26991] New: Target Help Seg Fault dave dot m at email dot it
` (7 preceding siblings ...)
2006-06-26 17:06 ` corsepiu at gcc dot gnu dot org
@ 2006-06-26 17:22 ` pinskia at gcc dot gnu dot org
2006-06-29 10:06 ` jakub at gcc dot gnu dot org
` (3 subsequent siblings)
12 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-06-26 17:22 UTC (permalink / raw)
To: gcc-bugs
------- Comment #7 from pinskia at gcc dot gnu dot org 2006-06-26 17:06 -------
(In reply to comment #6)
> For the record, the compiler exposing this is FC5's gcc-4.1.1-1.fc5
For the record, that is not a FSF release so it should be reported directly to
Redhat.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26991
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug middle-end/26991] [4.1 Regression] Target Help Seg Fault.
2006-04-02 17:22 [Bug c++/26991] New: Target Help Seg Fault dave dot m at email dot it
` (8 preceding siblings ...)
2006-06-26 17:22 ` pinskia at gcc dot gnu dot org
@ 2006-06-29 10:06 ` jakub at gcc dot gnu dot org
2006-06-29 10:49 ` jakub at gcc dot gnu dot org
` (2 subsequent siblings)
12 siblings, 0 replies; 15+ messages in thread
From: jakub at gcc dot gnu dot org @ 2006-06-29 10:06 UTC (permalink / raw)
To: gcc-bugs
------- Comment #8 from jakub at gcc dot gnu dot org 2006-06-29 09:58 -------
Created an attachment (id=11778)
--> (http://gcc.gnu.org/bugzilla/attachment.cgi?id=11778&action=view)
o.c
For the record, the same can be reproduced also with vanilla FSF
gcc-4_1-branch.
./cc1 --version; ./cc1 -quiet -m32 -O2 -mtune=pentium4 o.c; grep
cl_options_count o.s
GNU C version 4.1.2 20060629 (prerelease) (x86_64-unknown-linux-gnu)
compiled by GNU C version 4.1.1 20060525 (Red Hat 4.1.1-1).
GGC heuristics: --param ggc-min-expand=98 --param ggc-min-heapsize=128109
movl cl_options_count, %edx
cmpl cl_options_count, %esi
cmpl cl_options_count, %esi
movl cl_options_count, %ebx
movl %ebx, cl_options_count
cmpl cl_options_count, %esi
movl cl_options_count, %ebx
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26991
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug middle-end/26991] [4.1 Regression] Target Help Seg Fault.
2006-04-02 17:22 [Bug c++/26991] New: Target Help Seg Fault dave dot m at email dot it
` (9 preceding siblings ...)
2006-06-29 10:06 ` jakub at gcc dot gnu dot org
@ 2006-06-29 10:49 ` jakub at gcc dot gnu dot org
2006-07-04 13:48 ` jakub at gcc dot gnu dot org
2006-07-04 14:38 ` pinskia at gcc dot gnu dot org
12 siblings, 0 replies; 15+ messages in thread
From: jakub at gcc dot gnu dot org @ 2006-06-29 10:49 UTC (permalink / raw)
To: gcc-bugs
------- Comment #9 from jakub at gcc dot gnu dot org 2006-06-29 10:06 -------
And 111129 commit indeed fixes this. Will bootstrap/regtest now.
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26991
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug middle-end/26991] [4.1 Regression] Target Help Seg Fault.
2006-04-02 17:22 [Bug c++/26991] New: Target Help Seg Fault dave dot m at email dot it
` (10 preceding siblings ...)
2006-06-29 10:49 ` jakub at gcc dot gnu dot org
@ 2006-07-04 13:48 ` jakub at gcc dot gnu dot org
2006-07-04 14:38 ` pinskia at gcc dot gnu dot org
12 siblings, 0 replies; 15+ messages in thread
From: jakub at gcc dot gnu dot org @ 2006-07-04 13:48 UTC (permalink / raw)
To: gcc-bugs
------- Comment #10 from jakub at gcc dot gnu dot org 2006-07-04 13:47 -------
Subject: Bug 26991
Author: jakub
Date: Tue Jul 4 13:47:35 2006
New Revision: 115176
URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=115176
Log:
PR middle-end/26991
Backport from mainline
2006-02-16 Bernd Schmidt <bernd.schmidt@analog.com>
PR rtl-optimization/25636
* local-alloc.c (update_equiv_regs): Lose a bogus rtx_equal_p test
when deciding whether an insn is an initializing insn.
Modified:
branches/gcc-4_1-branch/gcc/ChangeLog
branches/gcc-4_1-branch/gcc/local-alloc.c
--
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26991
^ permalink raw reply [flat|nested] 15+ messages in thread
* [Bug middle-end/26991] [4.1 Regression] Target Help Seg Fault.
2006-04-02 17:22 [Bug c++/26991] New: Target Help Seg Fault dave dot m at email dot it
` (11 preceding siblings ...)
2006-07-04 13:48 ` jakub at gcc dot gnu dot org
@ 2006-07-04 14:38 ` pinskia at gcc dot gnu dot org
12 siblings, 0 replies; 15+ messages in thread
From: pinskia at gcc dot gnu dot org @ 2006-07-04 14:38 UTC (permalink / raw)
To: gcc-bugs
------- Comment #11 from pinskia at gcc dot gnu dot org 2006-07-04 14:38 -------
Fixed.
--
pinskia at gcc dot gnu dot org changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |RESOLVED
Resolution| |FIXED
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=26991
^ permalink raw reply [flat|nested] 15+ messages in thread