gdb: add target_ops::supports_displaced_step

[deliverable/binutils-gdb.git] / gdb / frame-base.c

diff --git a/gdb/frame-base.c b/gdb/frame-base.c
index a8408906dac8da9dd5e18052ca55dec4df8ceaad..9d8dd52daa7a58e7f21841266a8de1388ca8120c 100644 (file)
--- a/gdb/frame-base.c
+++ b/gdb/frame-base.c
@@ -1,12 +1,12 @@
 /* Definitions for frame address handler, for GDB, the GNU debugger.
 
-   Copyright (C) 2003, 2004 Free Software Foundation, Inc.
+   Copyright (C) 2003-2020 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
-   the Free Software Foundation; either version 2 of the License, or
+   the Free Software Foundation; either version 3 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
@@ -15,14 +15,13 @@
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin Street, Fifth Floor,
-   Boston, MA 02110-1301, USA.  */
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 #include "defs.h"
 #include "frame-base.h"
 #include "frame.h"
 #include "gdb_obstack.h"
+#include "gdbarch.h"
 
 /* A default frame base implementations.  If it wasn't for the old
    DEPRECATED_FRAME_LOCALS_ADDRESS and DEPRECATED_FRAME_ARGS_ADDRESS,
@@ -30,22 +29,21 @@
    really need to override this.  */
 
 static CORE_ADDR
-default_frame_base_address (struct frame_info *next_frame, void **this_cache)
+default_frame_base_address (struct frame_info *this_frame, void **this_cache)
 {
-  struct frame_info *this_frame = get_prev_frame (next_frame);
   return get_frame_base (this_frame); /* sigh! */
 }
 
 static CORE_ADDR
-default_frame_locals_address (struct frame_info *next_frame, void **this_cache)
+default_frame_locals_address (struct frame_info *this_frame, void **this_cache)
 {
-  return default_frame_base_address (next_frame, this_cache);
+  return default_frame_base_address (this_frame, this_cache);
 }
 
 static CORE_ADDR
-default_frame_args_address (struct frame_info *next_frame, void **this_cache)
+default_frame_args_address (struct frame_info *this_frame, void **this_cache)
 {
-  return default_frame_base_address (next_frame, this_cache);
+  return default_frame_base_address (this_frame, this_cache);
 }
 
 const struct frame_base default_frame_base = {
@@ -75,6 +73,7 @@ frame_base_init (struct obstack *obstack)
 {
   struct frame_base_table *table
     = OBSTACK_ZALLOC (obstack, struct frame_base_table);
+
   table->tail = &table->head;
   table->default_base = &default_frame_base;
   return table;
@@ -84,8 +83,11 @@ void
 frame_base_append_sniffer (struct gdbarch *gdbarch,
                           frame_base_sniffer_ftype *sniffer)
 {
-  struct frame_base_table *table = gdbarch_data (gdbarch, frame_base_data);
-  (*table->tail) = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct frame_base_table_entry);
+  struct frame_base_table *table
+    = (struct frame_base_table *) gdbarch_data (gdbarch, frame_base_data);
+
+  (*table->tail)
+    = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct frame_base_table_entry);
   (*table->tail)->sniffer = sniffer;
   table->tail = &(*table->tail)->next;
 }
@@ -94,31 +96,34 @@ void
 frame_base_set_default (struct gdbarch *gdbarch,
                        const struct frame_base *default_base)
 {
-  struct frame_base_table *table = gdbarch_data (gdbarch, frame_base_data);
+  struct frame_base_table *table
+    = (struct frame_base_table *) gdbarch_data (gdbarch, frame_base_data);
+
   table->default_base = default_base;
 }
 
 const struct frame_base *
-frame_base_find_by_frame (struct frame_info *next_frame)
+frame_base_find_by_frame (struct frame_info *this_frame)
 {
-  struct gdbarch *gdbarch = get_frame_arch (next_frame);
-  struct frame_base_table *table = gdbarch_data (gdbarch, frame_base_data);
+  struct gdbarch *gdbarch = get_frame_arch (this_frame);
+  struct frame_base_table *table
+    = (struct frame_base_table *) gdbarch_data (gdbarch, frame_base_data);
   struct frame_base_table_entry *entry;
 
   for (entry = table->head; entry != NULL; entry = entry->next)
     {
       const struct frame_base *desc = NULL;
-      desc = entry->sniffer (next_frame);
+
+      desc = entry->sniffer (this_frame);
       if (desc != NULL)
        return desc;
     }
   return table->default_base;
 }
 
-extern initialize_file_ftype _initialize_frame_base; /* -Wmissing-prototypes */
-
+void _initialize_frame_base ();
 void
-_initialize_frame_base (void)
+_initialize_frame_base ()
 {
   frame_base_data = gdbarch_data_register_pre_init (frame_base_init);
 }