gdb/

gdb/
	Performance optimize large bp_location count.
	* breakpoint.c (ALL_BP_LOCATIONS_SAFE): Remove.
	(ALL_BP_LOCATIONS): New parameter BP_TMP.  Use now bp_location and
	bp_location_count.
	(bp_location_chain): Remove variable.
	(bp_location, bp_location_count)
	(bp_location_placed_address_before_address_max)
	(bp_location_shadow_len_after_address_max): New variables.
	(moribund_locations, update_watchpoint): Update the bp_location
	variable name.
	(breakpoint_restore_shadows): Extend the comment.  Move the variable
	b to local blocks.  Move the variables bp_addr, bp_size and bptoffset
	to a local block.  New variables bc_l, bc_r and bc.  New binary search
	for the left range boundary.  New break on reaching the right range
	boundary.  Move shadow existence conditionals to ...
	(bp_location_has_shadow): ... a new function.
	(insert_breakpoint_locations): Replace the temp variable by bp_tmp.
	Use now ALL_BP_LOCATIONS instead of ALL_BP_LOCATIONS_SAFE.
	(remove_breakpoints, remove_hw_watchpoints, reattach_breakpoints)
	(detach_breakpoints): New variable bp_tmp.  Update the ALL_BP_LOCATIONS
	calling convention.
	(update_breakpoints_after_exec): New variable bplocp_tmp.  Update the
	ALL_BP_LOCATIONS calling convention.
	(breakpoint_here_p, software_breakpoint_inserted_here_p)
	(breakpoint_thread_match): New variable bptp_tmp.  Drop the const
	attribute of bpt.  Update the ALL_BP_LOCATIONS calling convention.
	(regular_breakpoint_inserted_here_p): Likewise.  Update the bp_location
	variable name.
	(mark_breakpoints_out, breakpoint_init_inferior): New variable
	bptp_tmp.  Update the ALL_BP_LOCATIONS calling convention.
	(bpstat_stop_status): New variables blp_tmp and update_locations.  Drop
	the const attribute of bl.  Update the ALL_BP_LOCATIONS calling
	convention.  Protect HIT_COUNT increment by an ENABLE_STATE check.
	Delay the update_global_location_list call using update_locations.
	(set_default_breakpoint): Drop the check_duplicates name from comment.
	(disable_breakpoints_in_shlibs, disable_breakpoints_in_unloaded_shlib):
	New variable locp_tmp.  Update the ALL_BP_LOCATIONS calling convention.
	(bp_location_compare, bp_location_compare_for_qsort)
	(bp_location_target_extensions_update): New functions.
	(check_duplicates, check_duplicates_for): Remove, moving their code ...
	(update_global_location_list): ... into this existing function.  Remove
	variables next, loc2, old_locations, ret and ix.  New variables locp,
	loc_first, old_location, old_locp and old_location_count.  Stop using
	global_next, create now the array bp_location, sort it by
	bp_location_compare_for_qsort and call
	bp_location_target_extensions_update.  Change quadratic iteration by
	loc2 into an in-sync scanning by locp and loc2p.  Rename former loc
	usage as old_loc.
	(do_vec_free): Remove.
	(breakpoint_program_space_exit): Update the ALL_BP_LOCATIONS calling
	convention.
	(remove_breakpoints_pid): New variable b_tmp.  Update the
	ALL_BP_LOCATIONS calling convention.
	* breakpoint.h (struct bp_location <global_next>): Remove.