src/gdb ChangeLog ada-lang.c breakpoint.c brea ...

[bauermann at sourceware dot org]

CVSROOT:	/cvs/src
Module name:	src
Changes by:	bauermann@sourceware.org	2011-01-11 19:23:04

Modified files:
	gdb            : ChangeLog ada-lang.c breakpoint.c breakpoint.h 
	                 gdbtypes.c gdbtypes.h ppc-linux-nat.c 
	                 rs6000-tdep.c target.h 
	gdb/doc        : ChangeLog gdb.texinfo 

Log message:
	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.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ChangeLog.diff?cvsroot=src&r1=1.12455&r2=1.12456
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ada-lang.c.diff?cvsroot=src&r1=1.282&r2=1.283
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/breakpoint.c.diff?cvsroot=src&r1=1.527&r2=1.528
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/breakpoint.h.diff?cvsroot=src&r1=1.131&r2=1.132
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/gdbtypes.c.diff?cvsroot=src&r1=1.211&r2=1.212
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/gdbtypes.h.diff?cvsroot=src&r1=1.145&r2=1.146
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ppc-linux-nat.c.diff?cvsroot=src&r1=1.98&r2=1.99
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/rs6000-tdep.c.diff?cvsroot=src&r1=1.346&r2=1.347
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/target.h.diff?cvsroot=src&r1=1.193&r2=1.194
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/doc/ChangeLog.diff?cvsroot=src&r1=1.1137&r2=1.1138
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/doc/gdb.texinfo.diff?cvsroot=src&r1=1.787&r2=1.788