2010-07-07 Sergio Durigan Junior <sergiodj@linux.vnet.ibm.com>gdb_7_2-branchpoint

	    Thiago Jung Bauermann  <bauerman@br.ibm.com>

	Support for hw accelerated condition watchpoints in booke powerpc.

	* breakpoint.c (fetch_watchpoint_value): Rename to fetch_subexp_value
	and move to eval.c.  Change callers.
	(insert_bp_location): Pass watchpoint condition in
	target_insert_watchpoint.
	(remove_breakpoint_1) Pass watchpoint condition in
	target_remove_watchpoint.
	(watchpoint_locations_match): Call
	target_can_accel_watchpoint_condition.
	* eval.c: Include wrapper.h.
	(fetch_subexp_value): Moved from breakpoint.c.
	* ppc-linux-nat.c (ppc_linux_region_ok_for_hw_watchpoint):
	Formatting fix.
	(can_use_watchpoint_cond_accel): New function.
	(calculate_dvc): Likewise.
	(num_memory_accesses): Likewise.
	(check_condition): Likewise.
	(ppc_linux_can_accel_watchpoint_condition): Likewise
	(ppc_linux_insert_watchpoint): Call can_use_watchpoint_cond_accel,
	check_condition and calculate_dvc.
	(ppc_linux_remove_watchpoint): Likewise.
	(_initialize_ppc_linux_nat): Set to_can_accel_watchpoint_condition to
	ppc_linux_can_accel_watchpoint_condition
	* target.c (debug_to_insert_watchpoint): Add argument for watchpoint
	condition.
	(debug_to_remove_watchpoint): Likewise.
	(debug_to_can_accel_watchpoint_condition): New function.
	(update_current_target): Set to_can_accel_watchpoint_condition.
	(setup_target_debug): Set to_can_accel_watchpoint_condition.
	* target.h: Add opaque declaration for struct expression.
	(struct target_ops) <to_insert_watchpoint>,
	<to_remove_watchpoint>: Add new arguments to pass the watchpoint
	<to_can_accel_watchpoint_condition>: New member.
	condition.  Update all callers and implementations.
	(target_can_accel_watchpoint_condition): New macro.
	* value.c (free_value_chain): New function.
	* value.h (fetch_subexp_value): New prototype.
	(free_value_chain): Likewise.

1 files changed, 4 insertions, 2 deletions

diff --git a/gdb/procfs.c b/gdb/procfs.c
index 97a87e3..de8e26d 100644
--- a/gdb/procfs.c
+++ b/gdb/procfs.c
@@ -5161,7 +5161,8 @@ procfs_stopped_data_address (struct target_ops *targ, CORE_ADDR *addr)
 }
 
 static int
-procfs_insert_watchpoint (CORE_ADDR addr, int len, int type)
+procfs_insert_watchpoint (CORE_ADDR addr, int len, int type,
+			  struct expression *cond)
 {
   if (!target_have_steppable_watchpoint
       && !gdbarch_have_nonsteppable_watchpoint (target_gdbarch))
@@ -5182,7 +5183,8 @@ procfs_insert_watchpoint (CORE_ADDR addr, int len, int type)
 }
 
 static int
-procfs_remove_watchpoint (CORE_ADDR addr, int len, int type)
+procfs_remove_watchpoint (CORE_ADDR addr, int len, int type,
+			  struct expression *cond)
 {
   return procfs_set_watchpoint (inferior_ptid, addr, 0, 0, 0);
 }