2011-03-31 Thiago Jung Bauermann <bauerman@br.ibm.com>

	    Sergio Durigan Junior  <sergiodj@linux.vnet.ibm.com>

	Implement support for PowerPC BookE ranged breakpoints.

gdb/
	* NEWS: Mention support for ranged breakpoints on embedded PowerPC.
	* breakpoint.h (struct bp_target_info) <length>: New member
	variable.
	(struct breakpoint_ops) <breakpoint_hit>: Take struct bp_location
	instead of struct breakpoint as argument, and also add ASPACE
	and BP_ADDR arguments.  Update all callers.
	(struct breakpoint_ops) <print_one_detail>: New method.
	(struct breakpoint) <addr_string_range_end>: New member variable.
	* breakpoint.c (breakpoint_location_address_match): Add function
	prototype.
	(insert_bp_location): Set bl->target_info.length.
	(breakpoint_here_p): Call breakpoint_location_address_match.
	(moribund_breakpoint_here_p): Likewise.
	(regular_breakpoint_inserted_here_p): Likewise.
	(breakpoint_thread_match): Likewise.
	(bpstat_stop_status): Likewise.
	(bpstat_check_location): Move call to
	breakpoint_ops.breakpoint_hit to the top.
	(print_one_breakpoint_location): Call
	breakpoint_ops.print_one_detail if available.
	(breakpoint_address_match_range): New function.
	(breakpoint_location_address_match): Likewise.
	(breakpoint_locations_match): Compare the length field of the
	locations too.
	(hw_breakpoint_used_count): Count resources used by all locations
	in a breakpoint, and use breakpoint_ops.resources_needed if
	available.
	(breakpoint_hit_ranged_breakpoint): New function.
	(resources_needed_ranged_breakpoint): Likewise.
	(print_it_ranged_breakpoint): Likewise.
	(print_one_ranged_breakpoint): Likewise.
	(print_one_detail_ranged_breakpoint): Likewise.
	(print_mention_ranged_breakpoint): Likewise.
	(print_recreate_ranged_breakpoint): Likewise.
	(ranged_breakpoint_ops): New structure.
	(find_breakpoint_range_end): New function.
	(break_range_command): Likewise.
	(delete_breakpoint): Free addr_string_range_end.
	(update_breakpoint_locations): Add SALS_END argument.  Update
	all callers.  Calculate breakpoint length if a non-zero SALS_END
	is given.  Call breakpoint_locations_match instead of
	breakpoint_address_match.
	(reset_breakpoint): Find SaL of the end of the range if B is a
	ranged breakpoint.
	(_initialize_breakpoint): Register break-range command.
	* defs.h (print_core_address): Add function prototype.
	* ppc-linux-nat.c (ppc_linux_ranged_break_num_registers): New
	function.
	(ppc_linux_insert_hw_breakpoint): Support ranged breakpoints.
	(ppc_linux_remove_hw_breakpoint): Likewise.
	(_initialize_ppc_linux_nat): Initialize
	to_ranged_break_num_registers.
	* target.c (update_current_target): Add comment about
	to_ranged_break_num_registers.
	(target_ranged_break_num_registers): New function.
	* target.h (struct target_ops) <to_ranged_break_num_registers>:
	New method.
	(target_ranged_break_num_registers): Add function prototype.
	* ui-out.c (ui_out_field_core_addr): Move address-printing logic to ...
	* utils.c (print_core_address): ... here.

gdb/doc/
	* gdb.texinfo (PowerPC Embedded): Document ranged breakpoints.

2 files changed, 25 insertions, 1 deletions

diff --git a/gdb/doc/ChangeLog b/gdb/doc/ChangeLog
index 08d6c8c..424f5c2 100644
--- a/gdb/doc/ChangeLog
+++ b/gdb/doc/ChangeLog
@@ -1,3 +1,9 @@
+2011-03-31  Thiago Jung Bauermann  <bauerman@br.ibm.com>
+	    Sergio Durigan Junior  <sergiodj@linux.vnet.ibm.com>
+
+	Implement support for PowerPC BookE ranged breakpoints.
+	* gdb.texinfo (PowerPC Embedded): Document ranged breakpoints.
+
 2011-03-28  Tom Tromey  <tromey@redhat.com>
 
 	* gdb.texinfo (Set Tracepoints): Fix typo.
@@ -9,7 +15,7 @@
 
 2011-03-18  Phil Muldoon  <pmuldoon@redhat.com>
 
-        PR python/12149
+	PR python/12149
 
 	* gdb.texinfo (Basic Python): Update gdb.write and flush text.
 
diff --git a/gdb/doc/gdb.texinfo b/gdb/doc/gdb.texinfo
index a4e976f..e72a305 100644
--- a/gdb/doc/gdb.texinfo
+++ b/gdb/doc/gdb.texinfo
@@ -18742,9 +18742,27 @@ region using one of the following commands (@pxref{Expressions}):
 (@value{GDBP}) watch @{char[@var{length}]@} @var{address}
 @end smallexample
 
+@cindex ranged breakpoint
+PowerPC embedded processors support hardware accelerated
+@dfn{ranged breakpoints}.  A ranged breakpoint stops execution of
+the inferior whenever it executes an instruction at any address within
+the range it specifies.  To set a ranged breakpoint in @value{GDBN},
+use the @code{break-range} command.
+
 @value{GDBN} provides the following PowerPC-specific commands:
 
 @table @code
+@kindex break-range
+@item break-range @var{start-location}, @var{end-location}
+Set a breakpoint for an address range.
+@var{start-location} and @var{end-location} can specify a function name,
+a line number, an offset of lines from the current line or from the start
+location, or an address of an instruction (see @ref{Specify Location},
+for a list of all the possible ways to specify a @var{location}.)
+The breakpoint will stop execution of the inferior whenever it
+executes an instruction at any address within the specified range,
+(including @var{start-location} and @var{end-location}.)
+
 @kindex set powerpc
 @item set powerpc soft-float
 @itemx show powerpc soft-float