*** empty log message ***

[deliverable/binutils-gdb.git] / gdb / mem-break.c

diff --git a/gdb/mem-break.c b/gdb/mem-break.c
index e2b7cbc6f35e0ed5953ff925868eda8b8f115bea..2d9851bc2a21a0b822f2e24087283a3f9801659d 100644 (file)
--- a/gdb/mem-break.c
+++ b/gdb/mem-break.c
@@ -1,6 +1,6 @@
 /* Simulate breakpoints by patching locations in the target system, for GDB.
 
-   Copyright 1990, 1991, 1992, 1993, 1995, 1997, 1998, 1999, 2000,
+   Copyright (C) 1990, 1991, 1992, 1993, 1995, 1997, 1998, 1999, 2000,
    2002 Free Software Foundation, Inc.
 
    Contributed by Cygnus Support.  Written by John Gilmore.
@@ -19,8 +19,8 @@
 
    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., 59 Temple Place - Suite 330,
-   Boston, MA 02111-1307, USA.  */
+   Foundation, Inc., 51 Franklin Street, Fifth Floor,
+   Boston, MA 02110-1301, USA.  */
 
 #include "defs.h"
 
@@ -33,60 +33,57 @@
 #include "target.h"
 
 
-/* Insert a breakpoint on targets that don't have any better breakpoint
-   support.  We read the contents of the target location and stash it,
-   then overwrite it with a breakpoint instruction.  ADDR is the target
-   location in the target machine.  CONTENTS_CACHE is a pointer to 
-   memory allocated for saving the target contents.  It is guaranteed
-   by the caller to be long enough to save BREAKPOINT_LEN bytes (this
-   is accomplished via BREAKPOINT_MAX).  */
+/* Insert a breakpoint on targets that don't have any better
+   breakpoint support.  We read the contents of the target location
+   and stash it, then overwrite it with a breakpoint instruction.
+   BP_TGT->placed_address is the target location in the target
+   machine.  BP_TGT->shadow_contents is some memory allocated for
+   saving the target contents.  It is guaranteed by the caller to be
+   long enough to save BREAKPOINT_LEN bytes (this is accomplished via
+   BREAKPOINT_MAX).  */
 
 int
-default_memory_insert_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
+default_memory_insert_breakpoint (struct bp_target_info *bp_tgt)
 {
   int val;
   const unsigned char *bp;
   int bplen;
 
   /* Determine appropriate breakpoint contents and size for this address.  */
-  bp = BREAKPOINT_FROM_PC (&addr, &bplen);
+  bp = BREAKPOINT_FROM_PC (&bp_tgt->placed_address, &bp_tgt->placed_size);
   if (bp == NULL)
     error (_("Software breakpoints not implemented for this target."));
 
   /* Save the memory contents.  */
-  val = target_read_memory (addr, contents_cache, bplen);
+  bp_tgt->shadow_len = bp_tgt->placed_size;
+  val = target_read_memory (bp_tgt->placed_address, bp_tgt->shadow_contents,
+                           bp_tgt->placed_size);
 
   /* Write the breakpoint.  */
   if (val == 0)
-    val = target_write_memory (addr, (char *) bp, bplen);
+    val = target_write_memory (bp_tgt->placed_address, bp,
+                              bp_tgt->placed_size);
 
   return val;
 }
 
 
 int
-default_memory_remove_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
+default_memory_remove_breakpoint (struct bp_target_info *bp_tgt)
 {
-  const bfd_byte *bp;
-  int bplen;
-
-  /* Determine appropriate breakpoint contents and size for this address.  */
-  bp = BREAKPOINT_FROM_PC (&addr, &bplen);
-  if (bp == NULL)
-    error (_("Software breakpoints not implemented for this target."));
-
-  return target_write_memory (addr, contents_cache, bplen);
+  return target_write_memory (bp_tgt->placed_address, bp_tgt->shadow_contents,
+                             bp_tgt->placed_size);
 }
 
 
 int
-memory_insert_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
+memory_insert_breakpoint (struct bp_target_info *bp_tgt)
 {
-  return MEMORY_INSERT_BREAKPOINT(addr, contents_cache);
+  return MEMORY_INSERT_BREAKPOINT (bp_tgt);
 }
 
 int
-memory_remove_breakpoint (CORE_ADDR addr, bfd_byte *contents_cache)
+memory_remove_breakpoint (struct bp_target_info *bp_tgt)
 {
-  return MEMORY_REMOVE_BREAKPOINT(addr, contents_cache);
+  return MEMORY_REMOVE_BREAKPOINT (bp_tgt);
 }