2011-04-20 Pedro Alves <pedro@codesourcery.com>

	gdb/
	* regcache.c: Include remote.h.
	(enum regcache_dump_what) <regcache_dump_remote>: New enum value.
	(regcache_dump): Handle regcache_dump_remote.
	(maintenance_print_remote_registers): New function.
	(_initialize_regcache): Install "maint print remote-registers"
	command.
	* remote.c (map_regcache_remote_table): New function, factored out
	from ...
	(init_remote_state): ... here.
	(remote_register_number_and_offset): New.
	* remote.h (remote_register_number_and_offset): Declare.

	gdb/doc/
	* gdb.texinfo (Maintenance Commands): Document `maint print
	remote-registers'.

1 files changed, 32 insertions, 1 deletions

diff --git a/gdb/regcache.c b/gdb/regcache.c
index 8b4d77ccc0c..f603c331d1c 100644
--- a/gdb/regcache.c
+++ b/gdb/regcache.c
@@ -30,6 +30,7 @@
 #include "gdbcmd.h"		/* For maintenanceprintlist.  */
 #include "observer.h"
 #include "exceptions.h"
+#include "remote.h"
 
 /*
  * DATA STRUCTURE
@@ -1053,7 +1054,8 @@ dump_endian_bytes (struct ui_file *file, enum bfd_endian endian,
 enum regcache_dump_what
 {
   regcache_dump_none, regcache_dump_raw,
-  regcache_dump_cooked, regcache_dump_groups
+  regcache_dump_cooked, regcache_dump_groups,
+  regcache_dump_remote
 };
 
 static void
@@ -1251,6 +1253,23 @@ regcache_dump (struct regcache *regcache, struct ui_file *file,
 	    }
 	}
 
+      /* Remote packet configuration.  */
+      if (what_to_dump == regcache_dump_remote)
+	{
+	  if (regnum < 0)
+	    {
+	      fprintf_unfiltered (file, "Rmt Nr  g/G Offset");
+	    }
+	  else if (regnum < regcache->descr->nr_raw_registers)
+	    {
+	      int pnum, poffset;
+
+	      if (remote_register_number_and_offset (get_regcache_arch (regcache), regnum,
+						     &pnum, &poffset))
+		fprintf_unfiltered (file, "%7d %11d", pnum, poffset);
+	    }
+	}
+
       fprintf_unfiltered (file, "\n");
     }
 
@@ -1309,6 +1328,12 @@ maintenance_print_register_groups (char *args, int from_tty)
   regcache_print (args, regcache_dump_groups);
 }
 
+static void
+maintenance_print_remote_registers (char *args, int from_tty)
+{
+  regcache_print (args, regcache_dump_remote);
+}
+
 extern initialize_file_ftype _initialize_regcache; /* -Wmissing-prototype */
 
 void
@@ -1342,5 +1367,11 @@ _initialize_regcache (void)
 	     "including each register's group.\n"
 	     "Takes an optional file parameter."),
 	   &maintenanceprintlist);
+  add_cmd ("remote-registers", class_maintenance,
+	   maintenance_print_remote_registers, _("\
+Print the internal register configuration including each register's\n\
+remote register number and buffer offset in the g/G packets.\n\
+Takes an optional file parameter."),
+	   &maintenanceprintlist);
 
 }