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Thiago Jung Bauermann e09342b536 2011-01-11 Sergio Durigan Junior <sergiodj@linux.vnet.ibm.com> 
Thiago Jung Bauermann  <bauerman@br.ibm.com>

	Implement support for PowerPC BookE ranged watchpoints.

gdb/
	* breakpoint.h
	(struct breakpoint_ops) <resources_needed>: New method.
	Initialize to NULL in all existing breakpoint_ops instances.
	(struct breakpoint) <exact>: New field.
	(target_exact_watchpoints): Declare external global.
	* breakpoint.c (target_exact_watchpoints): New global flag.
	(update_watchpoint): Set b->type to bp_hardware_watchpoint and
	b->enable_state to bp_enabled before calling
	hw_watchpoint_used_count.
	(hw_watchpoint_used_count): Iterate over all bp_locations in a
	watchpoint.  Call breakpoint's breakpoint_ops.resources_needed
	if available.
	(insert_watchpoint, remove_watchpoint): Use fixed length of 1 byte
	if the watchpoint is exact.
	(resources_needed_watchpoint): New function.
	(watchpoint_breakpoint_ops): Add resources_needed_watchpoint.
	(watch_command_1): Set b->exact if the user asked for an exact
	watchpoint and one can be set.
	(can_use_hardware_watchpoint): Add exact_watchpoints argument.
	Pass fixed length of 1 to target_region_ok_for_hw_watchpoint if
	the user asks for an exact watchpoint and one can be set.  Return
	number of needed debug registers to watch the expression.
	* gdbtypes.c (is_scalar_type): New function, based on
	valprint.c:scalar_type_p.
	(is_scalar_type_recursive): New function.
	* gdbtypes.h (is_scalar_type_recursive): Declare.
	* ppc-linux-nat.c (ppc_linux_region_ok_for_hw_watchpoint): Always
	handle regions when ranged watchpoints are available.
	(create_watchpoint_request): New function.
	(ppc_linux_insert_watchpoint, ppc_linux_remove_watchpoint): Use
	create_watchpoint_request.
	* rs6000-tdep.c (show_powerpc_exact_watchpoints): New function.
	(_initialize_rs6000_tdep): Add `exact-watchpoints' boolean to the
	`set powerpc' and `show powerpc' commands.
	* target.h (struct target_ops) <to_region_ok_for_hw_watchpoint>:
	Mention documentation comment in the target macro.
	(target_region_ok_for_hw_watchpoint): Document return value.

gdb/doc/
	* gdb.texinfo (PowerPC Embedded): Document ranged watchpoints and
	the "set powerpc exact-watchpoints" flag.
 		2011-01-11 19:23:03 +00:00
..
ChangeLog 2011-01-11 Sergio Durigan Junior <sergiodj@linux.vnet.ibm.com> 2011-01-11 19:23:03 +00:00
LRS
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Makefile.in gdb/doc/ 2011-01-03 13:01:05 +00:00
a4rc.sed
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agentexpr.texi Update the copyright year for most remaining files in GDB 2011-01-05 05:09:55 +00:00
all-cfg.texi Update the copyright year for most remaining files in GDB 2011-01-05 05:09:55 +00:00
annotate.texinfo Update the copyright year for most remaining files in GDB 2011-01-05 05:09:55 +00:00
fdl.texi 2010-06-21 Stan Shebs <stan@codesourcery.com> 2010-06-21 16:24:59 +00:00
gdb.texinfo 2011-01-11 Sergio Durigan Junior <sergiodj@linux.vnet.ibm.com> 2011-01-11 19:23:03 +00:00
gdbint.texinfo Update the copyright year for most remaining files in GDB 2011-01-05 05:09:55 +00:00
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observer.texi Update the copyright year for most remaining files in GDB 2011-01-05 05:09:55 +00:00
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refcard.tex Update the copyright year for most remaining files in GDB 2011-01-05 05:09:55 +00:00
stabs.texinfo Update the copyright year for most remaining files in GDB 2011-01-05 05:09:55 +00:00
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