* Makefile.in (mips-tdep.o, target-descriptions.o): Update.

	* target-descriptions.c (struct property): New.
	(struct target_desc): Add properties member.
	(tdesc_property, set_tdesc_property): New.
	* target-descriptions.h (tdesc_property, set_tdesc_property):
	Declare.
	* mips-tdep.c (PROPERTY_GP32, PROPERTY_GP64): New constants.
	(struct gdbarch_tdep): Add register_size_valid_p and register_size.
	(mips_isa_regsize): Use them.
	(mips_register_g_packet_guesses): New.
	(mips_gdbarch_init): Call it.  If a target description is supplied,
	check for internal properties.  Check for register size mismatches.
	* remote.c (send_g_packet, process_g_packet): New functions, split
	out from fetch_registers_using_g.
	(fetch_registers_using_g): Use them.
	(struct remote_g_packet_guess, remote_g_packet_guess_s)
	(struct remote_g_packet_data, remote_g_packet_data_handle)
	(remote_g_packet_data_init, register_remote_g_packet_guess)
	(remote_read_description): New.
	(init_remote_ops, init_remote_async_ops): Set to_read_description.
	(_initialize_remote): Register remote_g_packet_data_handle.
	* remote.h (register_remote_g_packet_guess): Declare.

1 files changed, 9 insertions, 0 deletions

diff --git a/gdb/target-descriptions.h b/gdb/target-descriptions.h
index bbcf879a866..74f59833d95 100644
--- a/gdb/target-descriptions.h
+++ b/gdb/target-descriptions.h
@@ -45,8 +45,17 @@ const struct target_desc *target_current_description (void);
 
 /* Accessors for target descriptions.  */
 
+/* Return the string value of a property named KEY, or NULL if the
+   property was not specified.  */
+
+const char *tdesc_property (const struct target_desc *,
+			    const char *key);
+
 /* Methods for constructing a target description.  */
 
 struct target_desc *allocate_target_description (void);
 
+void set_tdesc_property (struct target_desc *,
+			 const char *key, const char *value);
+
 #endif /* TARGET_DESCRIPTIONS_H */