src/gdb ChangeLog Makefile.in breakpoint.c bre ...

[msnyder at sourceware dot org]

CVSROOT:	/cvs/src
Module name:	src
Changes by:	msnyder@sourceware.org	2008-10-17 19:43:47

Modified files:
	gdb            : ChangeLog Makefile.in breakpoint.c breakpoint.h 
	                 infcmd.c inferior.h infrun.c remote.c target.c 
	                 target.h 
Added files:
	gdb            : reverse.c 

Log message:
	2008-10-17  Michael Snyder  <msnyder@vmware.com>
	Target interface for reverse debugging.
	* target.h (enum target_waitkind):
	Add new wait event, TARGET_WAITKIND_NO_HISTORY.
	(struct target_ops): New method to_can_execute_reverse.
	(target_can_execute_reverse): New macro.
	* target.c (update_current_target): Inherit to_can_execute_reverse.
	
	Remote interface for reverse debugging.
	* remote.c (remote_can_execute_reverse): New target method.
	(remote_resume): Check for reverse exec direction, and send
	appropriate command to target.
	(remote_wait_as): Check target response for NO_HISTORY status.
	Also check for empty reply (target doesn't understand "bs" or "bc).
	(remote_vcont_resume): Jump out if attempting reverse execution.
	
	Event handling interface for reverse debugging.
	* infrun.c (execution_direction): New state variable.
	(enum inferior_stop_reason): Add NO_HISTORY reason.
	(handle_inferior_event): Handle TARGET_WAITKIND_NO_HISTORY.
	Handle stepping over a function call in reverse.
	Handle stepping thru a line range in reverse.
	Handle setting a step-resume breakpoint in reverse.
	Handle stepping into a function in reverse.
	Handle stepping between line ranges in reverse.
	(print_stop_reason): Print reason for NO_HISTORY.
	(step_into_function): Rename to handle_step_into_function.
	(handle_step_into_function_backward): New function.
	(set_exec_direction_func, show_exec_direction_func): New funcs.
	(proceed): No need to singlestep over a breakpoint
	when resuming in reverse.
	
	* inferior.h (enum exec_direction_kind): New enum.
	(execution_direction): Export new execution state variable.
	
	* breakpoint.c (make_breakpoint_silent): New function.
	* breakpoint.h (make_breakpoint_silent): Export.
	* infcmd.c (finish_command): Check for reverse exec direction.
	(finish_backward): New function, handle finish cmd in reverse.
	
	User interface for reverse execution.
	* Makefile.in (reverse.c): New file.
	* reverse.c: New file.  User interface for reverse execution.

Patches:
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/reverse.c.diff?cvsroot=src&r1=1.1&r2=1.2
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/ChangeLog.diff?cvsroot=src&r1=1.9900&r2=1.9901
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/Makefile.in.diff?cvsroot=src&r1=1.1055&r2=1.1056
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/breakpoint.c.diff?cvsroot=src&r1=1.355&r2=1.356
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/breakpoint.h.diff?cvsroot=src&r1=1.82&r2=1.83
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/infcmd.c.diff?cvsroot=src&r1=1.212&r2=1.213
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/inferior.h.diff?cvsroot=src&r1=1.108&r2=1.109
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/infrun.c.diff?cvsroot=src&r1=1.327&r2=1.328
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/remote.c.diff?cvsroot=src&r1=1.320&r2=1.321
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/target.c.diff?cvsroot=src&r1=1.186&r2=1.187
http://sourceware.org/cgi-bin/cvsweb.cgi/src/gdb/target.h.diff?cvsroot=src&r1=1.131&r2=1.132