[Bug gdb/11327] New: GDB says stopped at breakpoint 0, when calling a function that calls std::terminate

[Bug gdb/11327] New: GDB says stopped at breakpoint 0, when calling a function that calls std::terminate

[pedro at codesourcery dot com]

Contrived example:

 void function ()
 {
   std::terminate ();
 }

 int main ()
 {
 }

(gdb) start
(gdb) call function ()

Breakpoint 0, 0x00007ffff7992110 in std::terminate() () from /usr/lib
^^^^^^^^^^^^

/libstdc++.so.6
The program being debugged entered a std::terminate call, most likely
caused by an unhandled C++ exception.  GDB blocked this call in order
to prevent the program from being terminated, and has restored the
context to its original state before the call.
To change this behaviour use "set unwind-on-terminating-exception off".
Evaluation of the expression containing the function (function())
will be abandoned.
(gdb)

-- 
           Summary: GDB says stopped at breakpoint 0, when calling a
                    function that calls std::terminate
           Product: gdb
           Version: 7.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: gdb
        AssignedTo: unassigned at sourceware dot org
        ReportedBy: pedro at codesourcery dot com
                CC: gdb-prs at sourceware dot org


http://sourceware.org/bugzilla/show_bug.cgi?id=11327

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[Bug gdb/11327] GDB says stopped at breakpoint 0, when calling a function that calls std::terminate

[pedro at codesourcery dot com]

------- Additional Comments From pedro at codesourcery dot com  2010-02-26 01:27 -------
This is related to the momentary breakpoint at std::terminate being
of bp_breakpoint kind.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever Confirmed|                            |1


http://sourceware.org/bugzilla/show_bug.cgi?id=11327

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[Bug gdb/11327] GDB says stopped at breakpoint 0, when calling a function that calls std::terminate

[tromey at redhat dot com]

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
         AssignedTo|unassigned at sourceware dot|tromey at redhat dot com
                   |org                         |
             Status|NEW                         |ASSIGNED
   Last reconfirmed|0000-00-00 00:00:00         |2010-03-16 20:38:24
               date|                            |


http://sourceware.org/bugzilla/show_bug.cgi?id=11327

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[Bug gdb/11327] GDB says stopped at breakpoint 0, when calling a function that calls std::terminate

[tromey at redhat dot com]

------- Additional Comments From cvs-commit at gcc dot gnu dot org  2010-03-25 20:49 -------
Subject: Bug 11327

CVSROOT:	/cvs/src
Module name:	src
Changes by:	tromey@sourceware.org	2010-03-25 20:48:53

Modified files:
	gdb            : ChangeLog breakpoint.c breakpoint.h infcall.c 
	                 infcmd.c inferior.h infrun.c 

Log message:
	PR gdb/11327, PR gdb/11328, PR breakpoints/11368:
	* infrun.c (handle_inferior_event): Change initialization of
	stop_stack_dummy.
	(handle_inferior_event): Change assignment to stop_stack_dummy.
	(normal_stop): Update use of stop_stack_dummy.
	(struct inferior_status) <stop_stack_dummy>: Change type.
	* inferior.h (stop_stack_dummy): Update.
	* infcmd.c (stop_stack_dummy): Change type.
	* infcall.c (cleanup_delete_std_terminate_breakpoint): New
	function.
	(call_function_by_hand): Call set_std_terminate_breakpoint.
	Rewrite std::terminate handling.
	* breakpoint.h (enum bptype) <bp_std_terminate,
	bp_std_terminate_master>: New.
	(enum stop_stack_kind): New.
	(struct bpstat_what) <call_dummy>: Change type.
	(set_std_terminate_breakpoint, delete_std_terminate_breakpoint):
	Declare.
	* breakpoint.c (create_std_terminate_master_breakpoint): New
	function.
	(update_breakpoints_after_exec): Handle bp_std_terminate_master.
	Call create_std_terminate_master_breakpoint.
	(print_it_typical): Handle new breakpoint kinds.
	(bpstat_stop_status): Handle bp_std_terminate_master.
	(bpstat_what): Correctly set call_dummy field.  Handle
	bp_std_terminate_master and bp_std_terminate.
	(print_one_breakpoint_location): Update.
	(allocate_bp_location): Update.
	(set_std_terminate_breakpoint): New function.
	(delete_std_terminate_breakpoint): Likewise.
	(create_thread_event_breakpoint): Update.
	(delete_command): Update.
	(breakpoint_re_set_one): Update.
	(breakpoint_re_set): Call create_std_terminate_master_breakpoint.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ChangeLog.diff?cvsroot=src&r1=1.11530&r2=1.11531
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/breakpoint.c.diff?cvsroot=src&r1=1.467&r2=1.468
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/breakpoint.h.diff?cvsroot=src&r1=1.112&r2=1.113
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/infcall.c.diff?cvsroot=src&r1=1.128&r2=1.129
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/infcmd.c.diff?cvsroot=src&r1=1.262&r2=1.263
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/inferior.h.diff?cvsroot=src&r1=1.142&r2=1.143
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/infrun.c.diff?cvsroot=src&r1=1.434&r2=1.435


------- Additional Comments From tromey at redhat dot com  2010-03-25 20:52 -------
I checked in the fix.

-- 
           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|ASSIGNED                    |RESOLVED
         Resolution|                            |FIXED
   Target Milestone|7.1                         |7.2


http://sourceware.org/bugzilla/show_bug.cgi?id=11327

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