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src/gdb ChangeLog Makefile.in frame.c sentinel ...


CVSROOT:	/cvs/src
Module name:	src
Changes by:	cagney@sourceware.org	2003-01-27 21:41:41

Modified files:
	gdb            : ChangeLog Makefile.in frame.c 
Added files:
	gdb            : sentinel-frame.c sentinel-frame.h 

Log message:
	2003-01-27  Andrew Cagney  <ac131313@redhat.com>
	
	* sentinel-frame.h, sentinel-frame.c: New files.
	* Makefile.in (frame.o): Update dependencies.
	(SFILES): Add sentinel-frame.c.
	(sentinel_frame_h): Define.
	(COMMON_OBS): Add sentinel-frame.o.
	(sentinel-frame.o): Specify dependencies.
	* frame.c: Include "sentinel-frame.h".
	(frame_register_unwind): Rewrite assuming that there is always a a
	->next frame.
	(frame_register, generic_unwind_get_saved_register): Ditto.
	(frame_read_unsigned_register, frame_read_signed_register): Ditto.
	(create_sentinel_frame, unwind_to_current_frame): New functions.
	(get_current_frame): Rewrite using create_sentinel_frame and
	unwind_to_current_frame.  When possible, always create a frame.
	(create_new_frame): Set next to the sentinel frame.
	(get_next_frame): Rewrite.  Don't go below the level 0 frame.
	(deprecated_update_frame_pc_hack): Update the next frame's PC and
	ID cache when necessary.
	(frame_saved_regs_id_unwind): Use frame_relative_level.
	(deprecated_generic_get_saved_register): Use frame_relative_level,
	get_frame_saved_regs, get_frame_pc, get_frame_base and
	get_next_frame.
	(frame_saved_regs_register_unwind): Use get_frame_saved_regs and
	frame_register.

Patches:
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/gdb/sentinel-frame.c.diff?cvsroot=src&r1=1.1&r2=1.2
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/gdb/sentinel-frame.h.diff?cvsroot=src&r1=1.1&r2=1.2
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/gdb/ChangeLog.diff?cvsroot=src&r1=1.3751&r2=1.3752
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/gdb/Makefile.in.diff?cvsroot=src&r1=1.318&r2=1.319
http://sources.redhat.com/cgi-bin/cvsweb.cgi/src/gdb/frame.c.diff?cvsroot=src&r1=1.62&r2=1.63


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