2012-02-24 Luis Machado <lgustavo@codesourcery.com>

	* remote.c (remote_supports_cond_breakpoints): New forward
	declaration.
	(remote_add_target_side_condition): New function.
	(remote_insert_breakpoint): Add target-side breakpoint
	conditional if supported.
	(remote_insert_hw_breakpoint): Likewise.
	(init_remote_ops): Set to_supports_evaluation_of_breakpoint_conditions
	hook.

	* target.c (update_current_target): Inherit
	to_supports_evaluation_of_breakpoint_conditions.
	Default to_supports_evaluation_of_breakpoint_conditions to return_zero.

	* target.h (struct target_ops)
	<to_supports_evaluation_of_breakpoint_conditions>: New field.
	(target_supports_evaluation_of_breakpoint_conditions): New #define.

	* breakpoint.c (get_first_locp_gte_addr): New forward declaration.
	(condition_evaluation_both, condition_evaluation_auto,
	condition_evaluation_host, condition_evaluation_target,
	condition_evaluation_enums, condition_evaluation_mode_1,
	condition_evaluation_mode): New	static globals.
	(translate_condition_evaluation_mode): New function.
	(breakpoint_condition_evaluation_mode): New function.
	(gdb_evaluates_breakpoint_condition_p): New function.
	(ALL_BP_LOCATIONS_AT_ADDR): New helper macro.
	(mark_breakpoint_modified): New function.
	(mark_breakpoint_location_modified): New function.
	(set_condition_evaluation_mode): New function.
	(show_condition_evaluation_mode): New function.
	(bp_location_compare_addrs): New function.
	(get_first_location_gte_addr): New helper function.
	(set_breakpoint_condition): Free condition bytecode if locations
	has become unconditional.  Call mark_breakpoint_modified (...).
	(condition_command): Call update_global_location_list (1) for
	breakpoints.
	(breakpoint_xfer_memory): Use is_breakpoint (...).
	(is_breakpoint): New function.
	(parse_cond_to_aexpr): New function.
	(build_target_condition_list): New function.
	(insert_bp_location): Handle target-side conditional
	breakpoints and call build_target_condition_list (...).
	(update_inserted_breakpoint_locations): New function.
	(insert_breakpoint_locations): Handle target-side conditional
	breakpoints.
	(bpstat_check_breakpoint_conditions): Add comment.
	(bp_condition_evaluator): New function.
	(bp_location_condition_evaluator): New function.
	(print_breakpoint_location): Print information on where the condition
	will be evaluated.
	(print_one_breakpoint_location): Likewise.
	(init_bp_location): Call mark_breakpoint_location_modified (...) for
	breakpoint location.
	(force_breakpoint_reinsertion): New functions.
	(update_global_location_list): Handle target-side breakpoint
	conditions.
	Reinsert locations that are already inserted if conditions have
	changed.
	(bp_location_dtor): Free agent expression bytecode.
	(disable_breakpoint): Call mark_breakpoint_modified (...).
	Call update_global_location_list (...) with parameter 1 for breakpoints.
	(disable_command): Call mark_breakpoint_location_modified (...).
	Call update_global_location_list (...) with parameter 1 for breakpoints.
	(enable_breakpoint_disp): Call mark_breakpoint_modified (...).
	(enable_command): mark_breakpoint_location_modified (...).
	(_initialize_breakpoint): Update documentation and add
	condition-evaluation breakpoint subcommand.

	* breakpoint.h: Include ax.h.
	(condition_list): New data structure.
	(condition_status): New enum.
	(bp_target_info) <cond_list>: New field.
	(bp_location) <condition_changed, cond_bytecode>: New fields.
	(is_breakpoint): New prototype.

1 files changed, 10 insertions, 0 deletions

diff --git a/gdb/target.h b/gdb/target.h
index d4605ae..d2b5056 100644
--- a/gdb/target.h
+++ b/gdb/target.h
@@ -662,6 +662,10 @@ struct target_ops
     /* Does this target support the tracenz bytecode for string collection?  */
     int (*to_supports_string_tracing) (void);
 
+    /* Does this target support evaluation of breakpoint conditions on its
+       end?  */
+    int (*to_supports_evaluation_of_breakpoint_conditions) (void);
+
     /* Determine current architecture of thread PTID.
 
        The target is supposed to determine the architecture of the code where
@@ -968,6 +972,12 @@ int target_supports_disable_randomization (void);
 #define target_supports_string_tracing() \
   (*current_target.to_supports_string_tracing) ()
 
+/* Returns true if this target can handle breakpoint conditions
+   on its end.  */
+
+#define target_supports_evaluation_of_breakpoint_conditions() \
+  (*current_target.to_supports_evaluation_of_breakpoint_conditions) ()
+
 /* Invalidate all target dcaches.  */
 extern void target_dcache_invalidate (void);