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| author | Gary Benson <gbenson@redhat.com> | 2014-06-19 09:13:57 +0100 |
|---|---|---|
| committer | Gary Benson <gbenson@redhat.com> | 2014-06-19 09:13:57 +0100 |
| commit | 992c7d700f99002ed455b0588488e0e42719ba81 (patch) | |
| tree | c24351fbcff74f41550b27263995ec03be1988ed /gdb/ChangeLog | |
| parent | eae7090bea9d7f129be7dddf89f8e177cdb2003d (diff) | |
| download | gdb-992c7d700f99002ed455b0588488e0e42719ba81.zip gdb-992c7d700f99002ed455b0588488e0e42719ba81.tar.gz gdb-992c7d700f99002ed455b0588488e0e42719ba81.tar.bz2 | |
Demangler crash handler
This commit wraps calls to the demangler with a segmentation fault
handler. The first time a segmentation fault is caught a core file
is generated and the user is prompted to file a bug and offered the
choice to exit or to continue their GDB session. A maintainence
option is provided to allow the user to disable the crash handler
if required.
gdb/
2014-06-19 Gary Benson <gbenson@redhat.com>
* configure.ac [AC_CHECK_FUNCS] <sigaltstack>: New check.
* configure: Regenerate.
* config.in: Likewise.
* main.c (signal.h): New include.
(setup_alternate_signal_stack): New function.
(captured_main): Call the above.
* cp-support.c (signal.h): New include.
(catch_demangler_crashes): New flag.
(SIGJMP_BUF): New define.
(SIGSETJMP): Likewise.
(SIGLONGJMP): Likewise.
(gdb_demangle_jmp_buf): New static global.
(gdb_demangle_attempt_core_dump): Likewise.
(gdb_demangle_signal_handler): New function.
(gdb_demangle): If catch_demangler_crashes is set, install the
above signal handler before calling bfd_demangle, and restore
the original signal handler afterwards. Display the offending
symbol and call demangler_warning the first time a segmentation
fault is caught.
(_initialize_cp_support): New maint set/show command.
gdb/doc/
2014-06-19 Gary Benson <gbenson@redhat.com>
* gdb.texinfo (Maintenance Commands): Document new
"maint set/show catch-demangler-crashes" option.
Diffstat (limited to 'gdb/ChangeLog')
| -rw-r--r-- | gdb/ChangeLog | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/gdb/ChangeLog b/gdb/ChangeLog index 8e0de8a..84563c3 100644 --- a/gdb/ChangeLog +++ b/gdb/ChangeLog @@ -1,5 +1,28 @@ 2014-06-19 Gary Benson <gbenson@redhat.com> + * configure.ac [AC_CHECK_FUNCS] <sigaltstack>: New check. + * configure: Regenerate. + * config.in: Likewise. + * main.c (signal.h): New include. + (setup_alternate_signal_stack): New function. + (captured_main): Call the above. + * cp-support.c (signal.h): New include. + (catch_demangler_crashes): New flag. + (SIGJMP_BUF): New define. + (SIGSETJMP): Likewise. + (SIGLONGJMP): Likewise. + (gdb_demangle_jmp_buf): New static global. + (gdb_demangle_attempt_core_dump): Likewise. + (gdb_demangle_signal_handler): New function. + (gdb_demangle): If catch_demangler_crashes is set, install the + above signal handler before calling bfd_demangle, and restore + the original signal handler afterwards. Display the offending + symbol and call demangler_warning the first time a segmentation + fault is caught. + (_initialize_cp_support): New maint set/show command. + +2014-06-19 Gary Benson <gbenson@redhat.com> + * utils.h (resource_limit_kind): New enum. (can_dump_core): New declaration. (warn_cant_dump_core): Likewise. |