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[ob] Update arguments to bpstat_stop_status


Obvious followup to the DECR_PC_AFTER_BREAK patch.  We don't need the PC to
be a reference argument anymore, or to pass the not_a_sw_breakpoint flag. 
All comments are conserved into adjust_pc_after_break.

-- 
Daniel Jacobowitz
MontaVista Software                         Debian GNU/Linux Developer

2004-01-31  Daniel Jacobowitz  <drow@mvista.com>

	* breakpoint.c (bpstat_stop_status): Remove not_a_sw_breakpoint
	argument, and change first argument to a CORE_ADDR.
	* breakpoint.h (bpstat_stop_status): Update prototype.
	* infrun.c (adjust_pc_after_break): Add a new comment.
	(handle_inferior_event): Update calls to bpstat_stop_status.

Index: breakpoint.c
===================================================================
RCS file: /cvs/src/src/gdb/breakpoint.c,v
retrieving revision 1.154
diff -u -p -r1.154 breakpoint.c
--- breakpoint.c	31 Jan 2004 19:18:13 -0000	1.154
+++ breakpoint.c	31 Jan 2004 19:56:43 -0000
@@ -2570,11 +2570,8 @@ which its expression is valid.\n");     
     }
 }
 
-/* Get a bpstat associated with having just stopped at address *PC
-   and frame address CORE_ADDRESS.  Update *PC to point at the
-   breakpoint (if we hit a breakpoint).  NOT_A_SW_BREAKPOINT is nonzero
-   if this is known to not be a real breakpoint (it could still be a
-   watchpoint, though).  */
+/* Get a bpstat associated with having just stopped at address
+   BP_ADDR.  */
 
 /* Determine whether we stopped at a breakpoint, etc, or whether we
    don't understand this stop.  Result is a chain of bpstat's such that:
@@ -2591,10 +2588,9 @@ which its expression is valid.\n");     
    commands, FIXME??? fields.  */
 
 bpstat
-bpstat_stop_status (CORE_ADDR *pc, int not_a_sw_breakpoint)
+bpstat_stop_status (CORE_ADDR bp_addr)
 {
   struct breakpoint *b, *temp;
-  CORE_ADDR bp_addr;
   /* True if we've hit a breakpoint (as opposed to a watchpoint).  */
   int real_breakpoint = 0;
   /* Root of the chain of bpstat's */
@@ -2602,8 +2598,6 @@ bpstat_stop_status (CORE_ADDR *pc, int n
   /* Pointer to the last thing in the chain currently.  */
   bpstat bs = root_bs;
 
-  bp_addr = *pc;
-
   ALL_BREAKPOINTS_SAFE (b, temp)
   {
     if (!breakpoint_enabled (b) && b->enable_state != bp_permanent)
@@ -2630,7 +2624,7 @@ bpstat_stop_status (CORE_ADDR *pc, int n
 
     if (b->type == bp_hardware_breakpoint)
       {
-	if (b->loc->address != *pc)
+	if (b->loc->address != bp_addr)
 	  continue;
 	if (overlay_debugging		/* unmapped overlay section */
 	    && section_is_overlay (b->loc->section) 
Index: breakpoint.h
===================================================================
RCS file: /cvs/src/src/gdb/breakpoint.h,v
retrieving revision 1.28
diff -u -p -r1.28 breakpoint.h
--- breakpoint.h	31 Jan 2004 19:24:18 -0000	1.28
+++ breakpoint.h	31 Jan 2004 19:56:43 -0000
@@ -403,7 +403,7 @@ extern void bpstat_clear (bpstat *);
    is part of the bpstat is copied as well.  */
 extern bpstat bpstat_copy (bpstat);
 
-extern bpstat bpstat_stop_status (CORE_ADDR *pc, int not_a_sw_breakpoint);
+extern bpstat bpstat_stop_status (CORE_ADDR pc);
 
 /* This bpstat_what stuff tells wait_for_inferior what to do with a
    breakpoint (a challenging task).  */
Index: infrun.c
===================================================================
RCS file: /cvs/src/src/gdb/infrun.c,v
retrieving revision 1.132
diff -u -p -r1.132 infrun.c
--- infrun.c	31 Jan 2004 19:18:13 -0000	1.132
+++ infrun.c	31 Jan 2004 19:56:44 -0000
@@ -1325,6 +1325,11 @@ adjust_pc_after_break (struct execution_
 
   /* If we've hit a breakpoint, we'll normally be stopped with SIGTRAP.  If
      we aren't, just return.
+
+     We assume that waitkinds other than TARGET_WAITKIND_STOPPED are not
+     affected by DECR_PC_AFTER_BREAK.  Other waitkinds which are implemented
+     by software breakpoints should be handled through the normal breakpoint
+     layer.
      
      NOTE drow/2004-01-31: On some targets, breakpoints may generate
      different signals (SIGILL or SIGEMT for instance), but it is less
@@ -1584,13 +1589,7 @@ handle_inferior_event (struct execution_
 
       stop_pc = read_pc ();
 
-      /* Assume that catchpoints are not really software breakpoints.  If
-	 some future target implements them using software breakpoints then
-	 that target is responsible for fudging DECR_PC_AFTER_BREAK.  Thus
-	 we pass 1 for the NOT_A_SW_BREAKPOINT argument, so that
-	 bpstat_stop_status will not decrement the PC.  */
-
-      stop_bpstat = bpstat_stop_status (&stop_pc, 1);
+      stop_bpstat = bpstat_stop_status (stop_pc);
 
       ecs->random_signal = !bpstat_explains_signal (stop_bpstat);
 
@@ -1639,13 +1638,7 @@ handle_inferior_event (struct execution_
       ecs->saved_inferior_ptid = inferior_ptid;
       inferior_ptid = ecs->ptid;
 
-      /* Assume that catchpoints are not really software breakpoints.  If
-	 some future target implements them using software breakpoints then
-	 that target is responsible for fudging DECR_PC_AFTER_BREAK.  Thus
-	 we pass 1 for the NOT_A_SW_BREAKPOINT argument, so that
-	 bpstat_stop_status will not decrement the PC.  */
-
-      stop_bpstat = bpstat_stop_status (&stop_pc, 1);
+      stop_bpstat = bpstat_stop_status (stop_pc);
 
       ecs->random_signal = !bpstat_explains_signal (stop_bpstat);
       inferior_ptid = ecs->saved_inferior_ptid;
@@ -2035,29 +2028,8 @@ handle_inferior_event (struct execution_
       else
 	{
 	  /* See if there is a breakpoint at the current PC.  */
+	  stop_bpstat = bpstat_stop_status (stop_pc);
 
-	  /* The second argument of bpstat_stop_status is meant to help
-	     distinguish between a breakpoint trap and a singlestep trap.
-	     This is only important on targets where DECR_PC_AFTER_BREAK
-	     is non-zero.  The prev_pc test is meant to distinguish between
-	     singlestepping a trap instruction, and singlestepping thru a
-	     jump to the instruction following a trap instruction.
-
-             Therefore, pass TRUE if our reason for stopping is
-             something other than hitting a breakpoint.  We do this by
-             checking that either: we detected earlier a software single
-             step trap or, 1) stepping is going on and 2) we didn't hit
-             a breakpoint in a signal handler without an intervening stop
-             in sigtramp, which is detected by a new stack pointer value
-             below any usual function calling stack adjustments.  */
-	  stop_bpstat =
-            bpstat_stop_status
-              (&stop_pc,
-               sw_single_step_trap_p
-               || (currently_stepping (ecs)
-                   && prev_pc != stop_pc - DECR_PC_AFTER_BREAK
-                   && !(step_range_end
-                        && INNER_THAN (read_sp (), (step_sp - 16)))));
 	  /* Following in case break condition called a
 	     function.  */
 	  stop_print_frame = 1;


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