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* [Bug gdb/13218] New: GDB always segfaults on Linux 3.0 and ARM
@ 2011-09-22 20:53 johannespfau at gmx dot de
2011-09-23 13:46 ` [Bug gdb/13218] " pedro at codesourcery dot com
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: johannespfau at gmx dot de @ 2011-09-22 20:53 UTC (permalink / raw)
To: gdb-prs
http://sourceware.org/bugzilla/show_bug.cgi?id=13218
Bug #: 13218
Summary: GDB always segfaults on Linux 3.0 and ARM
Product: gdb
Version: 7.3
Status: NEW
Severity: critical
Priority: P2
Component: gdb
AssignedTo: unassigned@sourceware.org
ReportedBy: johannespfau@gmx.de
Classification: Unclassified
Created attachment 5940
--> http://sourceware.org/bugzilla/attachment.cgi?id=5940
patch
Because of a bug in the get_linux_version function in the arm-linux-nat.c file,
gdb always segfaults. get_linux_version assumes that a linux kernel version
always has 3 version numbers (n.n.n) which is not true for the linux 3.0
kernel. In my case, the kernel version string is "3.0-ARCH". Because of that,
the third token returned by strtok is null, which causes the segfault.
Patch for gdb 7.3.1 attached.
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* [Bug gdb/13218] GDB always segfaults on Linux 3.0 and ARM
2011-09-22 20:53 [Bug gdb/13218] New: GDB always segfaults on Linux 3.0 and ARM johannespfau at gmx dot de
@ 2011-09-23 13:46 ` pedro at codesourcery dot com
2011-10-10 17:22 ` uweigand at gcc dot gnu.org
` (3 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: pedro at codesourcery dot com @ 2011-09-23 13:46 UTC (permalink / raw)
To: gdb-prs
http://sourceware.org/bugzilla/show_bug.cgi?id=13218
Pedro Alves <pedro at codesourcery dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |pedro at codesourcery dot
| |com
--- Comment #1 from Pedro Alves <pedro at codesourcery dot com> 2011-09-23 10:56:06 UTC ---
I'm not seeing where any of those os_FOO values are used. Can we just garbage
collect all of that?
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* [Bug gdb/13218] GDB always segfaults on Linux 3.0 and ARM
2011-09-22 20:53 [Bug gdb/13218] New: GDB always segfaults on Linux 3.0 and ARM johannespfau at gmx dot de
2011-09-23 13:46 ` [Bug gdb/13218] " pedro at codesourcery dot com
@ 2011-10-10 17:22 ` uweigand at gcc dot gnu.org
2011-10-10 17:23 ` uweigand at gcc dot gnu.org
` (2 subsequent siblings)
4 siblings, 0 replies; 6+ messages in thread
From: uweigand at gcc dot gnu.org @ 2011-10-10 17:22 UTC (permalink / raw)
To: gdb-prs
http://sourceware.org/bugzilla/show_bug.cgi?id=13218
Ulrich Weigand <uweigand at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |ASSIGNED
CC| |uweigand at gcc dot gnu.org
--- Comment #2 from Ulrich Weigand <uweigand at gcc dot gnu.org> 2011-10-10 17:22:02 UTC ---
(In reply to comment #1)
> I'm not seeing where any of those os_FOO values are used. Can we just garbage
> collect all of that?
Agreed. This has been in since the beginning of CVS history, and was
apparently never used even then.
I'll prepare a patch to remove this routine.
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* [Bug gdb/13218] GDB always segfaults on Linux 3.0 and ARM
2011-09-22 20:53 [Bug gdb/13218] New: GDB always segfaults on Linux 3.0 and ARM johannespfau at gmx dot de
2011-09-23 13:46 ` [Bug gdb/13218] " pedro at codesourcery dot com
2011-10-10 17:22 ` uweigand at gcc dot gnu.org
@ 2011-10-10 17:23 ` uweigand at gcc dot gnu.org
2011-10-10 18:49 ` cvs-commit at gcc dot gnu.org
2011-10-10 18:53 ` uweigand at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: uweigand at gcc dot gnu.org @ 2011-10-10 17:23 UTC (permalink / raw)
To: gdb-prs
http://sourceware.org/bugzilla/show_bug.cgi?id=13218
Ulrich Weigand <uweigand at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
AssignedTo|unassigned at sourceware |uweigand at gcc dot gnu.org
|dot org |
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* [Bug gdb/13218] GDB always segfaults on Linux 3.0 and ARM
2011-09-22 20:53 [Bug gdb/13218] New: GDB always segfaults on Linux 3.0 and ARM johannespfau at gmx dot de
` (2 preceding siblings ...)
2011-10-10 17:23 ` uweigand at gcc dot gnu.org
@ 2011-10-10 18:49 ` cvs-commit at gcc dot gnu.org
2011-10-10 18:53 ` uweigand at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2011-10-10 18:49 UTC (permalink / raw)
To: gdb-prs
http://sourceware.org/bugzilla/show_bug.cgi?id=13218
--- Comment #3 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> 2011-10-10 18:47:53 UTC ---
CVSROOT: /cvs/src
Module name: src
Changes by: uweigand@sourceware.org 2011-10-10 18:47:49
Modified files:
gdb : ChangeLog arm-linux-nat.c
Log message:
PR gdb/13218
* arm-linux-nat.c (os_version, os_major, os_minor, os_release):
Remove unused variables.
(get_linux_version): Remove function.
(_initialize_arm_linux_nat): Do not call it.
Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ChangeLog.diff?cvsroot=src&r1=1.13410&r2=1.13411
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/arm-linux-nat.c.diff?cvsroot=src&r1=1.49&r2=1.50
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* [Bug gdb/13218] GDB always segfaults on Linux 3.0 and ARM
2011-09-22 20:53 [Bug gdb/13218] New: GDB always segfaults on Linux 3.0 and ARM johannespfau at gmx dot de
` (3 preceding siblings ...)
2011-10-10 18:49 ` cvs-commit at gcc dot gnu.org
@ 2011-10-10 18:53 ` uweigand at gcc dot gnu.org
4 siblings, 0 replies; 6+ messages in thread
From: uweigand at gcc dot gnu.org @ 2011-10-10 18:53 UTC (permalink / raw)
To: gdb-prs
http://sourceware.org/bugzilla/show_bug.cgi?id=13218
Ulrich Weigand <uweigand at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|ASSIGNED |RESOLVED
Resolution| |FIXED
--- Comment #4 from Ulrich Weigand <uweigand at gcc dot gnu.org> 2011-10-10 18:52:47 UTC ---
Fixed.
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end of thread, other threads:[~2011-10-10 18:53 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
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2011-09-22 20:53 [Bug gdb/13218] New: GDB always segfaults on Linux 3.0 and ARM johannespfau at gmx dot de
2011-09-23 13:46 ` [Bug gdb/13218] " pedro at codesourcery dot com
2011-10-10 17:22 ` uweigand at gcc dot gnu.org
2011-10-10 17:23 ` uweigand at gcc dot gnu.org
2011-10-10 18:49 ` cvs-commit at gcc dot gnu.org
2011-10-10 18:53 ` uweigand at gcc dot gnu.org
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