From: Ulrich Weigand <uweigand@de.ibm.com>
Date: Fri, 5 Sep 2008 11:58:30 +0000 (+0000)
Subject: 	* rs6000-tdep.c (rs6000_gdbarch_init): Setup displaced stepping
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=2454a0247b12f34d5eb87f52172722115b0f0915;p=binutils-gdb.git

	* rs6000-tdep.c (rs6000_gdbarch_init): Setup displaced stepping
	*before* calling gdbarch_init_osabi.
	(rs6000_aix_init_osabi): Disable displaced stepping.
---

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index d8e6e5b5132..56a34e4d669 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,9 @@
+2008-09-05  Ulrich Weigand  <uweigand@de.ibm.com>
+
+	* rs6000-tdep.c (rs6000_gdbarch_init): Setup displaced stepping
+	*before* calling gdbarch_init_osabi.
+	(rs6000_aix_init_osabi): Disable displaced stepping.
+
 2008-09-05  Ulrich Weigand  <uweigand@de.ibm.com>
 
 	* target.c (update_current_target): Do not inherit to_open
diff --git a/gdb/rs6000-aix-tdep.c b/gdb/rs6000-aix-tdep.c
index 6edea05666b..a6e40fca006 100644
--- a/gdb/rs6000-aix-tdep.c
+++ b/gdb/rs6000-aix-tdep.c
@@ -714,6 +714,13 @@ rs6000_aix_init_osabi (struct gdbarch_info info, struct gdbarch *gdbarch)
   /* RS6000/AIX does not support PT_STEP.  Has to be simulated.  */
   set_gdbarch_software_single_step (gdbarch, rs6000_software_single_step);
 
+  /* Displaced stepping is currently not supported in combination with
+     software single-stepping.  */
+  set_gdbarch_displaced_step_copy_insn (gdbarch, NULL);
+  set_gdbarch_displaced_step_fixup (gdbarch, NULL);
+  set_gdbarch_displaced_step_free_closure (gdbarch, NULL);
+  set_gdbarch_displaced_step_location (gdbarch, NULL);
+
   set_gdbarch_push_dummy_call (gdbarch, rs6000_push_dummy_call);
   set_gdbarch_return_value (gdbarch, rs6000_return_value);
   set_gdbarch_long_double_bit (gdbarch, 8 * TARGET_CHAR_BIT);
diff --git a/gdb/rs6000-tdep.c b/gdb/rs6000-tdep.c
index 966ca1d4f18..d85af53133d 100644
--- a/gdb/rs6000-tdep.c
+++ b/gdb/rs6000-tdep.c
@@ -3669,6 +3669,17 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   /* Frame handling.  */
   dwarf2_frame_set_init_reg (gdbarch, ppc_dwarf2_frame_init_reg);
 
+  /* Setup displaced stepping.  */
+  set_gdbarch_displaced_step_copy_insn (gdbarch,
+					simple_displaced_step_copy_insn);
+  set_gdbarch_displaced_step_fixup (gdbarch, ppc_displaced_step_fixup);
+  set_gdbarch_displaced_step_free_closure (gdbarch,
+					   simple_displaced_step_free_closure);
+  set_gdbarch_displaced_step_location (gdbarch,
+				       displaced_step_at_entry_point);
+
+  set_gdbarch_max_insn_length (gdbarch, PPC_INSN_SIZE);
+
   /* Hook in ABI-specific overrides, if they have been registered.  */
   info.target_desc = tdesc;
   info.tdep_info = (void *) tdesc_data;
@@ -3732,17 +3743,6 @@ rs6000_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches)
   gdb_assert (gdbarch_num_regs (gdbarch)
 	      + gdbarch_num_pseudo_regs (gdbarch) == cur_reg);
 
-  /* Setup displaced stepping.  */
-  set_gdbarch_displaced_step_copy_insn (gdbarch,
-					simple_displaced_step_copy_insn);
-  set_gdbarch_displaced_step_fixup (gdbarch, ppc_displaced_step_fixup);
-  set_gdbarch_displaced_step_free_closure (gdbarch,
-					   simple_displaced_step_free_closure);
-  set_gdbarch_displaced_step_location (gdbarch,
-				       displaced_step_at_entry_point);
-
-  set_gdbarch_max_insn_length (gdbarch, PPC_INSN_SIZE);
-
   return gdbarch;
 }