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Markus Metzger 52834460bc record-btrace: add (reverse-)stepping support 
Provide to_resume and to_wait target methods for the btrace record target
to allow reverse stepping and replay support.

Replay is limited in the sense that only stepping and source correlation
are supported.  We do not record data and thus can not show variables.

Non-stop mode is not working.  Do not allow record-btrace in non-stop mode.

2014-01-16  Markus Metzger  <markus.t.metzger@intel.com>

	* btrace.h (btrace_thread_flag): New.
	(struct btrace_thread_info) <flags>: New.
	* record-btrace.c (record_btrace_resume_thread)
	(record_btrace_find_thread_to_move, btrace_step_no_history)
	(btrace_step_stopped, record_btrace_start_replaying)
	(record_btrace_step_thread, record_btrace_decr_pc_after_break)
	(record_btrace_find_resume_thread): New.
	(record_btrace_resume, record_btrace_wait): Extend.
	(record_btrace_can_execute_reverse): New.
	(record_btrace_open): Fail in non-stop mode.
	(record_btrace_set_replay): Split into this, ...
	(record_btrace_stop_replaying): ... this, ...
	(record_btrace_clear_histories): ... and this.
	(init_record_btrace_ops): Init to_can_execute_reverse.
	* NEWS: Announce it.

testsuite/
	* gdb.btrace/delta.exp: Check reverse stepi.
	* gdb.btrace/tailcall.exp: Update.  Add stepping tests.
	* gdb.btrace/finish.exp: New.
	* gdb.btrace/next.exp: New.
	* gdb.btrace/nexti.exp: New.
	* gdb.btrace/record_goto.c: Add comments.
	* gdb.btrace/step.exp: New.
	* gdb.btrace/stepi.exp: New.
	* gdb.btrace/multi-thread-step.c: New.
	* gdb.btrace/multi-thread-step.exp: New.
	* gdb.btrace/rn-dl-bind.c: New.
	* gdb.btrace/rn-dl-bind.exp: New.
	* gdb.btrace/data.c: New.
	* gdb.btrace/data.exp: New.
	* gdb.btrace/Makefile.in (EXECUTABLES): Add new.

doc/
	* gdb.texinfo: Document limited reverse/replay support
	for target record-btrace.
2014-01-16 13:14:12 +01:00
..
a4rc.sed
agentexpr.texi Update Copyright year range in all files maintained by GDB. 2014-01-01 07:54:24 +04:00
all-cfg.texi Update Copyright year range in all files maintained by GDB. 2014-01-01 07:54:24 +04:00
annotate.texinfo Update Copyright year range in all files maintained by GDB. 2014-01-01 07:54:24 +04:00
ChangeLog record-btrace: add (reverse-)stepping support 2014-01-16 13:14:12 +01:00
fdl.texi
gdb.texinfo record-btrace: add (reverse-)stepping support 2014-01-16 13:14:12 +01:00
gpl.texi
lpsrc.sed
Makefile.in Update Copyright year range in all files maintained by GDB. 2014-01-01 07:54:24 +04:00
observer.texi Update Copyright year range in all files maintained by GDB. 2014-01-01 07:54:24 +04:00
psrc.sed
refcard.tex Update Copyright year range in all files maintained by GDB. 2014-01-01 07:54:24 +04:00
stabs.texinfo Update Copyright year range in all files maintained by GDB. 2014-01-01 07:54:24 +04:00
stack_frame.eps
stack_frame.pdf
stack_frame.png
stack_frame.svg
stack_frame.txt