src/gdb ChangeLog i386-nat.c testsuite/ChangeL ...

[palves at sourceware dot org]

CVSROOT:	/cvs/src
Module name:	src
Changes by:	palves@sourceware.org	2011-07-22 16:58:33

Modified files:
	gdb            : ChangeLog i386-nat.c 
	gdb/testsuite  : ChangeLog 
	gdb/testsuite/gdb.arch: i386-dr3-watch.exp 
	gdb/gdbserver  : ChangeLog i386-low.c 

Log message:
	2011-07-22  Pedro Alves  <pedro@codesourcery.com>
	
	gdb/testsuite/
	* gdb.arch/i386-dr3-watch.exp: Test that the i386 watchpoints
	backend doesn't leave used debug registers behind.
	
	gdb/gdbserver/
	* i386-low.c (i386_insert_aligned_watchpoint): Don't pass the info
	to the inferior here.
	(i386_remove_aligned_watchpoint): Ditto.
	(i386_handle_nonaligned_watchpoint): Return immediate on fail to
	fit part of the watchpoint in the debug registers.
	(i386_update_inferior_debug_regs): New.
	(i386_low_insert_watchpoint): Work on a local mirror of the debug
	registers, and only update the inferior on success.
	(i386_low_remove_watchpoint): Ditto.
	
	gdb/
	* i386-nat.c (I386_DR_VACANT, I386_DR_LOCAL_ENABLE)
	(I386_DR_GLOBAL_ENABLE, I386_DR_DISABLE, I386_DR_SET_RW_LEN)
	(I386_DR_GET_RW_LEN, I386_DR_WATCH_HIT): Add state parameter and
	adjust.
	(dr_mirror, dr_status_mirror, dr_control_mirror): Delete.
	(struct i386_debug_reg_state): New.
	(i386_init_dregs): New.
	(dr_mirror): New.
	(i386_cleanup_dregs): Use i386_init_dregs.
	(i386_show_dr): Add state parameter and adjust.
	(i386_insert_aligned_watchpoint): Ditto.  Don't pass the info to
	the inferior here.
	(i386_remove_aligned_watchpoint): Likewise.
	(i386_handle_nonaligned_watchpoint): Add state parameter and adjust.
	(i386_update_inferior_debug_regs): New.
	(i386_insert_watchpoint): Work on a local mirror of the debug
	registers, and only update the inferior on success.
	(i386_remove_watchpoint): Ditto.
	(i386_region_ok_for_watchpoint): Adjust.
	(i386_stopped_data_address): Adjust.
	(i386_insert_hw_breakpoint): Adjust.
	(i386_remove_hw_breakpoint): Adjust.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ChangeLog.diff?cvsroot=src&r1=1.13210&r2=1.13211
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/i386-nat.c.diff?cvsroot=src&r1=1.33&r2=1.34
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/ChangeLog.diff?cvsroot=src&r1=1.2805&r2=1.2806
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/testsuite/gdb.arch/i386-dr3-watch.exp.diff?cvsroot=src&r1=1.1&r2=1.2
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/gdbserver/ChangeLog.diff?cvsroot=src&r1=1.486&r2=1.487
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/gdbserver/i386-low.c.diff?cvsroot=src&r1=1.6&r2=1.7