public inbox for gdb-prs@sourceware.org help / color / mirror / Atom feed
* [Bug symtab/15719] New: watch -l crash @ 2013-07-04 18:48 jan.kratochvil at redhat dot com 2013-07-04 18:49 ` [Bug symtab/15719] " jan.kratochvil at redhat dot com ` (5 more replies) 0 siblings, 6 replies; 7+ messages in thread From: jan.kratochvil at redhat dot com @ 2013-07-04 18:48 UTC (permalink / raw) To: gdb-prs http://sourceware.org/bugzilla/show_bug.cgi?id=15719 Bug ID: 15719 Summary: watch -l crash Product: gdb Version: HEAD Status: NEW Severity: normal Priority: P2 Component: symtab Assignee: unassigned at sourceware dot org Reporter: jan.kratochvil at redhat dot com Target: x86_64-unknown-linux-gnu echo 'struct { struct {} *p; } *v; int main(void) { return 0; }'|gcc -Wall -g -x c -; gdb ./a.out -ex start -ex 'watch -l v->p->x' GNU gdb (GDB) 7.6.50.20130704-cvs [...] Temporary breakpoint 1, main () at <stdin>:1 1 <stdin>: No such file or directory. Segmentation fault -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug symtab/15719] watch -l crash 2013-07-04 18:48 [Bug symtab/15719] New: watch -l crash jan.kratochvil at redhat dot com @ 2013-07-04 18:49 ` jan.kratochvil at redhat dot com 2013-07-08 20:20 ` tromey at redhat dot com ` (4 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: jan.kratochvil at redhat dot com @ 2013-07-04 18:49 UTC (permalink / raw) To: gdb-prs http://sourceware.org/bugzilla/show_bug.cgi?id=15719 Jan Kratochvil <jan.kratochvil at redhat dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |jan.kratochvil at redhat dot com --- Comment #1 from Jan Kratochvil <jan.kratochvil at redhat dot com> --- Found by Petr Spacek: https://bugzilla.redhat.com/show_bug.cgi?id=921078 -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug symtab/15719] watch -l crash 2013-07-04 18:48 [Bug symtab/15719] New: watch -l crash jan.kratochvil at redhat dot com 2013-07-04 18:49 ` [Bug symtab/15719] " jan.kratochvil at redhat dot com @ 2013-07-08 20:20 ` tromey at redhat dot com 2013-07-09 21:22 ` tromey at redhat dot com ` (3 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: tromey at redhat dot com @ 2013-07-08 20:20 UTC (permalink / raw) To: gdb-prs http://sourceware.org/bugzilla/show_bug.cgi?id=15719 Tom Tromey <tromey at redhat dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |tromey at redhat dot com --- Comment #2 from Tom Tromey <tromey at redhat dot com> --- I have a patch that changes it to: (gdb) watch -l v->p->x Cannot access memory at address 0x0 I'm running it through regression-testing now. Basically this just amounts to letting fetch_subexp_value pass through MEMORY_ERROR in this case. -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug symtab/15719] watch -l crash 2013-07-04 18:48 [Bug symtab/15719] New: watch -l crash jan.kratochvil at redhat dot com 2013-07-04 18:49 ` [Bug symtab/15719] " jan.kratochvil at redhat dot com 2013-07-08 20:20 ` tromey at redhat dot com @ 2013-07-09 21:22 ` tromey at redhat dot com 2013-07-17 15:31 ` tromey at redhat dot com ` (2 subsequent siblings) 5 siblings, 0 replies; 7+ messages in thread From: tromey at redhat dot com @ 2013-07-09 21:22 UTC (permalink / raw) To: gdb-prs http://sourceware.org/bugzilla/show_bug.cgi?id=15719 Tom Tromey <tromey at redhat dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Assignee|unassigned at sourceware dot org |tromey at redhat dot com -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug symtab/15719] watch -l crash 2013-07-04 18:48 [Bug symtab/15719] New: watch -l crash jan.kratochvil at redhat dot com ` (2 preceding siblings ...) 2013-07-09 21:22 ` tromey at redhat dot com @ 2013-07-17 15:31 ` tromey at redhat dot com 2013-08-02 16:41 ` cvs-commit at gcc dot gnu.org 2013-08-02 16:45 ` tromey at redhat dot com 5 siblings, 0 replies; 7+ messages in thread From: tromey at redhat dot com @ 2013-07-17 15:31 UTC (permalink / raw) To: gdb-prs http://sourceware.org/bugzilla/show_bug.cgi?id=15719 --- Comment #3 from Tom Tromey <tromey at redhat dot com> --- It's also weird that this doesn't emit an error about "x" not being a field. -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug symtab/15719] watch -l crash 2013-07-04 18:48 [Bug symtab/15719] New: watch -l crash jan.kratochvil at redhat dot com ` (3 preceding siblings ...) 2013-07-17 15:31 ` tromey at redhat dot com @ 2013-08-02 16:41 ` cvs-commit at gcc dot gnu.org 2013-08-02 16:45 ` tromey at redhat dot com 5 siblings, 0 replies; 7+ messages in thread From: cvs-commit at gcc dot gnu.org @ 2013-08-02 16:41 UTC (permalink / raw) To: gdb-prs http://sourceware.org/bugzilla/show_bug.cgi?id=15719 --- Comment #4 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> --- CVSROOT: /cvs/src Module name: src Changes by: tromey@sourceware.org 2013-08-02 16:41:08 Modified files: gdb : ChangeLog breakpoint.c eval.c ppc-linux-nat.c value.h gdb/testsuite : ChangeLog gdb/testsuite/gdb.base: watchpoint.c watchpoint.exp Log message: fix PR symtab/15719 This patch fixes PR symtab/15719. The bug is that "watch -location" crashes on a certain expression. The problem is that fetch_subexp_value is catching an exception. For ordinary watchpoints this is ok; but for location watchpoints, it is better for the exception to propagate. Built and regtested on x86-64 Fedora 18. New test case included. PR symtab/15719: * breakpoint.c (update_watchpoint, watchpoint_check) (watch_command_1): Update. * eval.c (fetch_subexp_value): Add "preserve_errors" parameter. * ppc-linux-nat.c (check_condition): Update. * value.h (fetch_subexp_value): Update. * gdb.base/watchpoint.c (struct foo5): New. (nullptr): New global. * gdb.base/watchpoint.exp (test_watch_location): Add test. Patches: http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ChangeLog.diff?cvsroot=src&r1=1.15860&r2=1.15861 http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/breakpoint.c.diff?cvsroot=src&r1=1.773&r2=1.774 http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/eval.c.diff?cvsroot=src&r1=1.184&r2=1.185 http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ppc-linux-nat.c.diff?cvsroot=src&r1=1.123&r2=1.124 http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/value.h.diff?cvsroot=src&r1=1.222&r2=1.223 http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/ChangeLog.diff?cvsroot=src&r1=1.3757&r2=1.3758 http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.base/watchpoint.c.diff?cvsroot=src&r1=1.10&r2=1.11 http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.base/watchpoint.exp.diff?cvsroot=src&r1=1.65&r2=1.66 -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 7+ messages in thread
* [Bug symtab/15719] watch -l crash 2013-07-04 18:48 [Bug symtab/15719] New: watch -l crash jan.kratochvil at redhat dot com ` (4 preceding siblings ...) 2013-08-02 16:41 ` cvs-commit at gcc dot gnu.org @ 2013-08-02 16:45 ` tromey at redhat dot com 5 siblings, 0 replies; 7+ messages in thread From: tromey at redhat dot com @ 2013-08-02 16:45 UTC (permalink / raw) To: gdb-prs http://sourceware.org/bugzilla/show_bug.cgi?id=15719 Tom Tromey <tromey at redhat dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |FIXED Target Milestone|--- |7.7 --- Comment #5 from Tom Tromey <tromey at redhat dot com> --- Fixed. -- You are receiving this mail because: You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 7+ messages in thread
end of thread, other threads:[~2013-08-02 16:45 UTC | newest] Thread overview: 7+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2013-07-04 18:48 [Bug symtab/15719] New: watch -l crash jan.kratochvil at redhat dot com 2013-07-04 18:49 ` [Bug symtab/15719] " jan.kratochvil at redhat dot com 2013-07-08 20:20 ` tromey at redhat dot com 2013-07-09 21:22 ` tromey at redhat dot com 2013-07-17 15:31 ` tromey at redhat dot com 2013-08-02 16:41 ` cvs-commit at gcc dot gnu.org 2013-08-02 16:45 ` tromey at redhat dot com
This is a public inbox, see mirroring instructions for how to clone and mirror all data and code used for this inbox; as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).