diff options
| author | Mads Ynddal <m.ynddal@samsung.com> | 2023-09-26 12:34:24 +0200 |
|---|---|---|
| committer | Stefan Hajnoczi <stefanha@redhat.com> | 2023-09-26 12:28:51 -0400 |
| commit | 8405ec6ab6a05b8c84f7be1130a7891d1a874624 (patch) | |
| tree | 89385f0f71c7be9993e85e5c27f271fc425b2d6d /scripts | |
| parent | 2c109f21994a72e9b91c24c422e540b921e84f66 (diff) | |
simpletrace: annotate magic constants from QEMU code
It wasn't clear where the constants and structs came from, so I added
comments to help.
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Mads Ynddal <m.ynddal@samsung.com>
Message-id: 20230926103436.25700-3-mads@ynddal.dk
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Diffstat (limited to 'scripts')
| -rwxr-xr-x | scripts/simpletrace.py | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/scripts/simpletrace.py b/scripts/simpletrace.py index b221d9a241..5c230a1b74 100755 --- a/scripts/simpletrace.py +++ b/scripts/simpletrace.py @@ -16,6 +16,11 @@ from tracetool.backend.simple import is_string __all__ = ['Analyzer', 'process', 'run'] +# This is the binary format that the QEMU "simple" trace backend +# emits. There is no specification documentation because the format is +# not guaranteed to be stable. Trace files must be parsed with the +# same trace-events-all file and the same simpletrace.py file that +# QEMU was built with. header_event_id = 0xffffffffffffffff header_magic = 0xf2b177cb0aa429b4 dropped_event_id = 0xfffffffffffffffe |