diff options
| author | Pavel Dovgalyuk <Pavel.Dovgaluk@ispras.ru> | 2020-10-03 20:13:26 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2020-10-06 08:34:49 +0200 |
| commit | e751067179e18178d0f0ab5955b95d59e2a081de (patch) | |
| tree | a4c504693aa2622de0f0f913766ddd33233e9afd /qapi | |
| parent | e3b09ad2b6e9b23ebc7c2ba133e8a22e53dec301 (diff) | |
replay: introduce breakpoint at the specified step
This patch introduces replay_break, replay_delete_break
qmp and hmp commands.
These commands allow stopping at the specified instruction.
It may be useful for debugging when there are some known
events that should be investigated.
replay_break command has one argument - number of instructions
executed since the start of the replay.
replay_delete_break removes previously set breakpoint.
Signed-off-by: Pavel Dovgalyuk <Pavel.Dovgalyuk@ispras.ru>
Acked-by: Markus Armbruster <armbru@redhat.com>
--
v4 changes:
- removed useless error_free call
Message-Id: <160174520606.12451.7056879546045599378.stgit@pasha-ThinkPad-X280>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'qapi')
| -rw-r--r-- | qapi/replay.json | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/qapi/replay.json b/qapi/replay.json index e6b3f6001d..173ba76107 100644 --- a/qapi/replay.json +++ b/qapi/replay.json @@ -63,3 +63,39 @@ ## { 'command': 'query-replay', 'returns': 'ReplayInfo' } + +## +# @replay-break: +# +# Set replay breakpoint at instruction count @icount. +# Execution stops when the specified instruction is reached. +# There can be at most one breakpoint. When breakpoint is set, any prior +# one is removed. The breakpoint may be set only in replay mode and only +# "in the future", i.e. at instruction counts greater than the current one. +# The current instruction count can be observed with @query-replay. +# +# @icount: instruction count to stop at +# +# Since: 5.2 +# +# Example: +# +# -> { "execute": "replay-break", "data": { "icount": 220414 } } +# +## +{ 'command': 'replay-break', 'data': { 'icount': 'int' } } + +## +# @replay-delete-break: +# +# Remove replay breakpoint which was set with @replay-break. +# The command is ignored when there are no replay breakpoints. +# +# Since: 5.2 +# +# Example: +# +# -> { "execute": "replay-delete-break" } +# +## +{ 'command': 'replay-delete-break' } |