gdb/

2006-09-21  Vladimir Prus  <vladimir@codesourcery.com>
	    Daniel Jacobowitz  <dan@codesourcery.com>
	    Nathan Sidwell  <nathan@codesourcery.com>

	* Makefile.in (SFILES): Add memory-map.c and xml-support.c.
	(memory_map_h, xml_support_h): New.
	(target_h): Add vec_h dependency.
	(COMMON_OBS): Add memory-map.o and xml-support.o.
	(memory-map.o, xml-support.o): New rules.
	(remote.o): Update.
	* exceptions.h (enum errors): Add XML_PARSE_ERROR.
	* infcmd.c (run_command_1, attach_command): Call target_pre_inferior.
	* memattr.c (default_mem_attrib): Initialize blocksize.
	(target_mem_region_list, mem_use_target)
	(target_mem_regions_valid, mem_region_cmp, mem_region_init)
	(require_user_regions, require_target_regions)
	(invalidate_target_mem_regions): New.
	(create_mem_region): Use mem_region_init.
	(mem_clear): Move higher.
	(lookup_mem_region): Use require_target_regions.
	(mem_command): Implement "mem auto".
	(mem_info_command): Handle target-supplied regions and flash
	attributes.
	(mem_enable_command, mem_disable_command, mem_delete_command): Use
	require_user_regions.
	(_initialize_mem): Mention "mem auto" in help.
	* memattr.h (enum mem_access_mode): Add MEM_FLASH.
	(struct mem_attrib): Add blocksize.
	(invalidate_target_mem_regions, mem_region_init, mem_region_cmp): New
	prototypes.
	* remote.c: Include "memory-map.h".
	(PACKET_qXfer_memory_map): New enum value.
	(remote_protocol_features): Add qXfer:memory-map:read.
	(remote_xfer_partial): Handle memory maps.
	(remote_memory_map): New.
	(init_remote_ops, init_remote_async_ops): Set to_memory_map.
	(_initialize_remote): Register qXfer:memory-map:read.
	* target.c (update_current_target): Mention to_memory_map.
	(target_memory_map, target_pre_inferior): New.
	(target_preopen): Call target_pre_inferior.
	* target.h: Include "vec.h".
	(enum target_object): Add TARGET_OBJECT_MEMORY_MAP.
	(struct target_ops): Add to_memory_map.
	(target_memory_map, target_pre_inferior): New prototypes.
	* memory-map.c, memory-map.h, xml-support.c, xml-support.h: New files.
gdb/doc/
2006-09-21  Vladimir Prus  <vladimir@codesourcery.com>
	    Daniel Jacobowitz  <dan@codesourcery.com>

	* gdb.texinfo (Memory Region Attributes): Mention target-supplied
	memory regions and "mem auto".

2 files changed, 16 insertions, 3 deletions

diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog
index d50e845..135ddd9 100644
--- a/gdb/doc/ChangeLog
+++ b/gdb/doc/ChangeLog
@@ -1,3 +1,9 @@
+2006-09-21  Vladimir Prus  <vladimir@codesourcery.com>
+	    Daniel Jacobowitz  <dan@codesourcery.com>
+
+	* gdb.texinfo (Memory Region Attributes): Mention target-supplied
+	memory regions and "mem auto".
+
 2006-09-21  Nathan Sidwell  <nathan@codesourcery.com>
 
 	* gdbint.texinfo (Array Containers): New section.
diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index efd969c..3fc7544 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -6720,9 +6720,12 @@ an unrecognized tag.
 @cindex memory region attributes
 
 @dfn{Memory region attributes} allow you to describe special handling
-required by regions of your target's memory.  @value{GDBN} uses attributes
-to determine whether to allow certain types of memory accesses; whether to
-use specific width accesses; and whether to cache target memory.
+required by regions of your target's memory.  @value{GDBN} uses
+attributes to determine whether to allow certain types of memory
+accesses; whether to use specific width accesses; and whether to cache
+target memory.  By default the description of memory regions is
+fetched from the target (if the current target supports this), but the
+user can override the fetched regions.
 
 Defined memory regions can be individually enabled and disabled.  When a
 memory region is disabled, @value{GDBN} uses the default attributes when
@@ -6742,6 +6745,10 @@ monitored by @value{GDBN}.  Note that @var{upper} == 0 is a special
 case: it is treated as the the target's maximum memory address.
 (0xffff on 16 bit targets, 0xffffffff on 32 bit targets, etc.)
 
+@item mem auto
+Discard any user changes to the memory regions and use target-supplied
+regions, if available, or no regions if the target does not support.
+
 @kindex delete mem
 @item delete mem @var{nums}@dots{}
 Remove memory regions @var{nums}@dots{} from the list of regions