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* [Bug libfortran/48931] New: Backtrace functionality not async-signal-safe
@ 2011-05-08 19:27 jb at gcc dot gnu.org
2011-05-14 16:00 ` [Bug libfortran/48931] " jb at gcc dot gnu.org
` (4 more replies)
0 siblings, 5 replies; 6+ messages in thread
From: jb at gcc dot gnu.org @ 2011-05-08 19:27 UTC (permalink / raw)
To: gcc-bugs
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48931
Summary: Backtrace functionality not async-signal-safe
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: minor
Priority: P3
Component: libfortran
AssignedTo: unassigned@gcc.gnu.org
ReportedBy: jb@gcc.gnu.org
When -fbacktrace is enabled, gfortran enables a signal handler for the common
failure signals, and tries to print a backtrace in the handler. On Linux
platforms this is accomplished with the glibc backtrace() and
backtrace_symbols() functions. However, backtrace_symbols() uses malloc() to
allocate memory and is hence not safe to use within a signal handler.
It might be possible to instead use backtrace_symbols_fd() and output either
directly to STDERR_FILENO, or to a pipe.
^ permalink raw reply [flat|nested] 6+ messages in thread* [Bug libfortran/48931] Backtrace functionality not async-signal-safe 2011-05-08 19:27 [Bug libfortran/48931] New: Backtrace functionality not async-signal-safe jb at gcc dot gnu.org @ 2011-05-14 16:00 ` jb at gcc dot gnu.org 2011-05-15 10:18 ` jb at gcc dot gnu.org ` (3 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: jb at gcc dot gnu.org @ 2011-05-14 16:00 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48931 Janne Blomqvist <jb at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- AssignedTo|unassigned at gcc dot |jb at gcc dot gnu.org |gnu.org | --- Comment #1 from Janne Blomqvist <jb at gcc dot gnu.org> 2011-05-14 15:15:56 UTC --- Assigning to myself. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug libfortran/48931] Backtrace functionality not async-signal-safe 2011-05-08 19:27 [Bug libfortran/48931] New: Backtrace functionality not async-signal-safe jb at gcc dot gnu.org 2011-05-14 16:00 ` [Bug libfortran/48931] " jb at gcc dot gnu.org @ 2011-05-15 10:18 ` jb at gcc dot gnu.org 2011-05-22 17:00 ` jb at gcc dot gnu.org ` (2 subsequent siblings) 4 siblings, 0 replies; 6+ messages in thread From: jb at gcc dot gnu.org @ 2011-05-15 10:18 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48931 Janne Blomqvist <jb at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- URL| |http://gcc.gnu.org/ml/gcc-p | |atches/2011-05/msg01058.htm | |l --- Comment #2 from Janne Blomqvist <jb at gcc dot gnu.org> 2011-05-15 09:38:56 UTC --- Patch: http://gcc.gnu.org/ml/gcc-patches/2011-05/msg01058.html ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug libfortran/48931] Backtrace functionality not async-signal-safe 2011-05-08 19:27 [Bug libfortran/48931] New: Backtrace functionality not async-signal-safe jb at gcc dot gnu.org 2011-05-14 16:00 ` [Bug libfortran/48931] " jb at gcc dot gnu.org 2011-05-15 10:18 ` jb at gcc dot gnu.org @ 2011-05-22 17:00 ` jb at gcc dot gnu.org 2011-05-22 17:05 ` jb at gcc dot gnu.org 2011-05-29 20:21 ` jb at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: jb at gcc dot gnu.org @ 2011-05-22 17:00 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48931 --- Comment #3 from Janne Blomqvist <jb at gcc dot gnu.org> 2011-05-22 16:38:08 UTC --- Author: jb Date: Sun May 22 16:38:05 2011 New Revision: 174030 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=174030 Log: PR 48931 Make backtrace async-signal-safe, reformat output Modified: trunk/libgfortran/ChangeLog trunk/libgfortran/config.h.in trunk/libgfortran/configure trunk/libgfortran/configure.ac trunk/libgfortran/runtime/backtrace.c trunk/libgfortran/runtime/main.c ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug libfortran/48931] Backtrace functionality not async-signal-safe 2011-05-08 19:27 [Bug libfortran/48931] New: Backtrace functionality not async-signal-safe jb at gcc dot gnu.org ` (2 preceding siblings ...) 2011-05-22 17:00 ` jb at gcc dot gnu.org @ 2011-05-22 17:05 ` jb at gcc dot gnu.org 2011-05-29 20:21 ` jb at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: jb at gcc dot gnu.org @ 2011-05-22 17:05 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48931 Janne Blomqvist <jb at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |FIXED --- Comment #4 from Janne Blomqvist <jb at gcc dot gnu.org> 2011-05-22 16:41:16 UTC --- Fixed, closing. ^ permalink raw reply [flat|nested] 6+ messages in thread
* [Bug libfortran/48931] Backtrace functionality not async-signal-safe 2011-05-08 19:27 [Bug libfortran/48931] New: Backtrace functionality not async-signal-safe jb at gcc dot gnu.org ` (3 preceding siblings ...) 2011-05-22 17:05 ` jb at gcc dot gnu.org @ 2011-05-29 20:21 ` jb at gcc dot gnu.org 4 siblings, 0 replies; 6+ messages in thread From: jb at gcc dot gnu.org @ 2011-05-29 20:21 UTC (permalink / raw) To: gcc-bugs http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48931 --- Comment #5 from Janne Blomqvist <jb at gcc dot gnu.org> 2011-05-29 20:13:56 UTC --- Author: jb Date: Sun May 29 20:13:52 2011 New Revision: 174415 URL: http://gcc.gnu.org/viewcvs?root=gcc&view=rev&rev=174415 Log: PR 48931 Use async-signal-safe execve instead of execvp Modified: trunk/libgfortran/ChangeLog trunk/libgfortran/libgfortran.h trunk/libgfortran/runtime/backtrace.c trunk/libgfortran/runtime/compile_options.c trunk/libgfortran/runtime/main.c ^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2011-05-29 20:14 UTC | newest] Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2011-05-08 19:27 [Bug libfortran/48931] New: Backtrace functionality not async-signal-safe jb at gcc dot gnu.org 2011-05-14 16:00 ` [Bug libfortran/48931] " jb at gcc dot gnu.org 2011-05-15 10:18 ` jb at gcc dot gnu.org 2011-05-22 17:00 ` jb at gcc dot gnu.org 2011-05-22 17:05 ` jb at gcc dot gnu.org 2011-05-29 20:21 ` jb at gcc dot gnu.org
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