Re: [commit] Delete MIPS only DEPRECATED_IGNORE_HELPER_CALLER

[Andrew Cagney <cagney at gnu dot org>]

Andrew Cagney wrote:
> This is was added as a hack for mips16 floating-point.  Given that 
> MIPS16 backtraces are pretty much AWAL, the loss of this hack is the 
> least of the MIPS16 problems.  If anyone is interested in renovating the 
> MIPS16 I'm all ears.

with patch.
2004-10-31  Andrew Cagney  <cagney@gnu.org>

	* mips-tdep.c (mips_ignore_helper): Delete.
	* config/mips/tm-mips.h (DEPRECATED_IGNORE_HELPER_CALL): Delete.
	* infrun.c (handle_inferior_event): Delete #ifdef
	DEPRECATED_IGNORE_HELPER_CALL code.

Index: infrun.c
===================================================================
RCS file: /cvs/src/src/gdb/infrun.c,v
retrieving revision 1.179
diff -p -u -r1.179 infrun.c
--- infrun.c	29 Oct 2004 20:23:08 -0000	1.179
+++ infrun.c	31 Oct 2004 16:13:03 -0000
@@ -2303,27 +2303,6 @@ process_event_stop_test:
 	  return;
 	}
 
-#ifdef DEPRECATED_IGNORE_HELPER_CALL
-      /* On MIPS16, a function that returns a floating point value may
-         call a library helper function to copy the return value to a
-         floating point register.  The DEPRECATED_IGNORE_HELPER_CALL
-         macro returns non-zero if we should ignore (i.e. step over)
-         this function call.  */
-      /* FIXME: cagney/2004-07-21: These custom ``ignore frame when
-         stepping'' function attributes (SIGTRAMP_FRAME,
-         DEPRECATED_IGNORE_HELPER_CALL, SKIP_TRAMPOLINE_CODE,
-         skip_language_trampoline frame, et.al.) need to be replaced
-         with generic attributes bound to the frame's function.  */
-      if (DEPRECATED_IGNORE_HELPER_CALL (stop_pc))
-	{
-	  /* We're doing a "next", set a breakpoint at callee's return
-	     address (the address at which the caller will
-	     resume).  */
-	  insert_step_resume_breakpoint_at_frame (get_prev_frame (get_current_frame ()));
-	  keep_going (ecs);
-	  return;
-	}
-#endif
       if (step_over_calls == STEP_OVER_ALL)
 	{
 	  /* We're doing a "next", set a breakpoint at callee's return
Index: mips-tdep.c
===================================================================
RCS file: /cvs/src/src/gdb/mips-tdep.c,v
retrieving revision 1.357
diff -p -u -r1.357 mips-tdep.c
--- mips-tdep.c	31 Oct 2004 03:11:54 -0000	1.357
+++ mips-tdep.c	31 Oct 2004 16:13:03 -0000
@@ -4590,27 +4590,6 @@ mips_in_solib_return_trampoline (CORE_AD
   return 0;			/* not a stub */
 }
 
-
-/* Return non-zero if the PC is in a library helper function that
-   should be ignored.  This implements the
-   DEPRECATED_IGNORE_HELPER_CALL macro.  */
-
-int
-mips_ignore_helper (CORE_ADDR pc)
-{
-  char *name;
-
-  /* Find the starting address and name of the function containing the PC.  */
-  if (find_pc_partial_function (pc, &name, NULL, NULL) == 0)
-    return 0;
-
-  /* If the PC is in __mips16_ret_{d,s}f, this is a library helper function
-     that we want to ignore.  */
-  return (strcmp (name, "__mips16_ret_sf") == 0
-	  || strcmp (name, "__mips16_ret_df") == 0);
-}
-
-
 /* Convert a dbx stab register number (from `r' declaration) to a GDB
    [1 * NUM_REGS .. 2 * NUM_REGS) REGNUM.  */
 
Index: config/mips/tm-mips.h
===================================================================
RCS file: /cvs/src/src/gdb/config/mips/tm-mips.h,v
retrieving revision 1.75
diff -p -u -r1.75 tm-mips.h
--- config/mips/tm-mips.h	31 Oct 2004 15:50:54 -0000	1.75
+++ config/mips/tm-mips.h	31 Oct 2004 16:13:04 -0000
@@ -44,8 +44,4 @@ extern int mips_step_skips_delay (CORE_A
 
 #define MDEBUG_EFI_SYMBOL_NAME "__GDB_EFI_INFO__"
 
-/* Functions for dealing with MIPS16 call and return stubs.  */
-#define DEPRECATED_IGNORE_HELPER_CALL(pc)			mips_ignore_helper (pc)
-extern int mips_ignore_helper (CORE_ADDR pc);
-
 #endif /* TM_MIPS_H */