2004-05-14 Andrew Cagney <cagney@redhat.com>

	* infrun.c (handle_inferior_event): Simplify
	STEP_OVER_UNDEBUGGABLE.

1 files changed, 7 insertions, 64 deletions

diff --git a/gdb/infrun.c b/gdb/infrun.c
index aaff0d0..3834cd8 100644
--- a/gdb/infrun.c
+++ b/gdb/infrun.c
@@ -2353,82 +2353,25 @@ process_event_stop_test:
          inferior stopped).  Since we want to skip this kind of code,
          we keep going until the inferior returns from this
          function.  */
-      /* NOTE: cagney/2004-05-12: This test is performed after the
-	 sigtramp test as often sigtramps, while recognized by GDB,
-	 have no symbol information.  */
-      CORE_ADDR real_stop_pc;
-	
-      if ((step_over_calls == STEP_OVER_NONE)
-	  || ((step_range_end == 1)
-	      && in_prologue (prev_pc, ecs->stop_func_start)))
+      if (step_stop_if_no_debug)
 	{
-	  /* I presume that step_over_calls is only 0 when we're
-	     supposed to be stepping at the assembly language level
-	     ("stepi").  Just stop.  */
-	  /* Also, maybe we just did a "nexti" inside a prolog, so we
-	     thought it was a subroutine call but it was not.  Stop as
-	     well.  FENN */
+	  /* If we have no line number and the step-stop-if-no-debug
+	     is set, we stop the step so that the user has a chance to
+	     switch in assembly mode.  */
 	  stop_step = 1;
 	  print_stop_reason (END_STEPPING_RANGE, 0);
 	  stop_stepping (ecs);
 	  return;
 	}
-	
-      if (step_over_calls == STEP_OVER_ALL || IGNORE_HELPER_CALL (stop_pc))
+      else
 	{
-	  /* We're doing a "next", set a breakpoint at callee's return
-	     address (the address at which the caller will
-	     resume).  */
+	  /* Set a breakpoint at callee's return address (the address
+	     at which the caller will resume).  */
 	  insert_step_resume_breakpoint (get_prev_frame (get_current_frame ()),
 					 ecs);
 	  keep_going (ecs);
 	  return;
 	}
-      
-      /* If we are in a function call trampoline (a stub between the
-	 calling routine and the real function), locate the real
-	 function.  That's what tells us (a) whether we want to step
-	 into it at all, and (b) what prologue we want to run to the
-	 end of, if we do step into it.  */
-      real_stop_pc = skip_language_trampoline (stop_pc);
-      if (real_stop_pc == 0)
-	real_stop_pc = SKIP_TRAMPOLINE_CODE (stop_pc);
-      if (real_stop_pc != 0)
-	ecs->stop_func_start = real_stop_pc;
-      
-      /* If we have line number information for the function we are
-	 thinking of stepping into, step into it.
-
-	 If there are several symtabs at that PC (e.g. with include
-	 files), just want to know whether *any* of them have line
-	 numbers.  find_pc_line handles this.  */
-      {
-	struct symtab_and_line tmp_sal;
-	
-	tmp_sal = find_pc_line (ecs->stop_func_start, 0);
-	if (tmp_sal.line != 0)
-	  {
-	    step_into_function (ecs);
-	    return;
-	  }
-      }
-      
-      /* If we have no line number and the step-stop-if-no-debug is
-	 set, we stop the step so that the user has a chance to switch
-	 in assembly mode.  */
-      if (step_over_calls == STEP_OVER_UNDEBUGGABLE && step_stop_if_no_debug)
-	{
-	  stop_step = 1;
-	  print_stop_reason (END_STEPPING_RANGE, 0);
-	  stop_stepping (ecs);
-	  return;
-	}
-      
-      /* Set a breakpoint at callee's return address (the address at
-	 which the caller will resume).  */
-      insert_step_resume_breakpoint (get_prev_frame (get_current_frame ()), ecs);
-      keep_going (ecs);
-      return;
     }
 
   if (frame_id_eq (frame_unwind_id (get_current_frame ()),