gdb

	PR c++/9593:
	* thread.c (clear_thread_inferior_resources): Call
	delete_longjmp_breakpoint.
	* infrun.c (handle_inferior_event): Handle exception breakpoints.
	(handle_inferior_event): Likewise.
	(insert_exception_resume_breakpoint): New function.
	(check_exception_resume): Likewise.
	* inferior.h (delete_longjmp_breakpoint_cleanup): Declare.
	* infcmd.c (delete_longjmp_breakpoint_cleanup): No longer static.
	(step_1): Set thread's initiating frame.
	(until_next_continuation): New function.
	(until_next_command): Support exception breakpoints.
	(finish_command_continuation): Delete longjmp breakpoint.
	(finish_forward): Support exception breakpoints.
	* gdbthread.h (struct thread_info) <initiating_frame>: New field.
	* breakpoint.h (enum bptype) <bp_exception, bp_exception_resume,
	bp_exception_master>: New constants.
	(struct bpstat_what) <is_longjmp>: New field.
	(set_longjmp_breakpoint): Update.
	* breakpoint.c (create_exception_master_breakpoint): New function.
	(update_breakpoints_after_exec): Handle bp_exception_master.  Call
	create_exception_master_breakpoint.
	(print_it_typical): Handle bp_exception_master, bp_exception.
	(bpstat_stop_status): Handle bp_exception_master.
	(bpstat_what): Handle bp_exception_master, bp_exception,
	bp_exception_resume.
	(bptype_string): Likewise.
	(print_one_breakpoint_location): Likewise.
	(allocate_bp_location): Likewise.
	(set_longjmp_breakpoint): Handle exception breakpoints.  Change
	interface.
	(delete_longjmp_breakpoint): Handle exception breakpoints.
	(mention): Likewise.
	(struct until_break_command_continuation_args) <thread_num>: New
	field.
	(until_break_command_continuation): Call
	delete_longjmp_breakpoint.
	(until_break_command): Support exception breakpoints.
	(delete_command): Likewise.
	(breakpoint_re_set_one): Likewise.
	(breakpoint_re_set): Likewise.
gdb/testuite
	* gdb.java/jnpe.java: New file.
	* gdb.java/jnpe.exp: New file.
	* gdb.cp/nextoverthrow.exp: New file.
	* gdb.cp/nextoverthrow.cc: New file.

1 files changed, 10 insertions, 0 deletions

diff --git a/gdb/gdbthread.h b/gdb/gdbthread.h
index c6a1d5c..c3a49ef 100644
--- a/gdb/gdbthread.h
+++ b/gdb/gdbthread.h
@@ -40,6 +40,9 @@ struct thread_control_state
   /* Step-resume or longjmp-resume breakpoint.  */
   struct breakpoint *step_resume_breakpoint;
 
+  /* Exception-resume breakpoint.  */
+  struct breakpoint *exception_resume_breakpoint;
+
   /* Range to single step within.
 
      If this is nonzero, respond to a single-step signal by continuing
@@ -207,6 +210,10 @@ struct thread_info
   /* True if this thread has been explicitly requested to stop.  */
   int stop_requested;
 
+  /* The initiating frame of a nexting operation, used for deciding
+     which exceptions to intercept.  */
+  struct frame_id initiating_frame;
+
   /* Private data used by the target vector implementation.  */
   struct private_thread_info *private;
 
@@ -243,6 +250,9 @@ extern void delete_thread_silent (ptid_t);
 /* Delete a step_resume_breakpoint from the thread database. */
 extern void delete_step_resume_breakpoint (struct thread_info *);
 
+/* Delete an exception_resume_breakpoint from the thread database. */
+extern void delete_exception_resume_breakpoint (struct thread_info *);
+
 /* Translate the integer thread id (GDB's homegrown id, not the system's)
    into a "pid" (which may be overloaded with extra thread information).  */
 extern ptid_t thread_id_to_pid (int);