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| author | Markus Metzger <markus.t.metzger@intel.com> | 2013-05-06 16:04:46 +0200 |
|---|---|---|
| committer | Markus Metzger <markus.t.metzger@intel.com> | 2014-01-16 13:14:12 +0100 |
| commit | 52834460bc1e8813c8cedd876dac7156b34fa60f (patch) | |
| tree | 9ed83f5c20d5e1704354f07ae709bb5b94a5650c /gdb/NEWS | |
| parent | 118e6252ca1cabce6d4480a4f24c53e5456a2cfa (diff) | |
| download | gdb-52834460bc1e8813c8cedd876dac7156b34fa60f.zip gdb-52834460bc1e8813c8cedd876dac7156b34fa60f.tar.gz gdb-52834460bc1e8813c8cedd876dac7156b34fa60f.tar.bz2 | |
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.
Diffstat (limited to 'gdb/NEWS')
| -rw-r--r-- | gdb/NEWS | 4 |
1 files changed, 4 insertions, 0 deletions
@@ -22,6 +22,10 @@ For locations inside the execution trace, the back trace is computed based on the information stored in the execution trace. +* The btrace record target supports limited reverse execution and replay. + The target does not record data and therefore does not allow reading + memory or registers. + * New remote packets qXfer:btrace:read's annex |