Provides a generic event state description structure (TraceEvent) and a more
detailed event control and query interface.
This is achieved by creating a new "non-public" tracing backend (i.e., not
selectable by the user at configure time) that will generate the appropriate
event description information.
Signed-off-by: Lluís Vilanova <vilan...@ac.upc.edu>
---
Changes in v12:
* Fix size of event identifier in the 'simple' backend when writing traces
(patch by Stefan Hajnoczi).
Changes in v11:
* Rebase on a4bcea3 from master.
Changes in v10:
* Add suggestions by Stefan Hajnoczi:
* Merge paths in 'do_trace_event_set_state'.
* Add header guards in "trace/control-internal.h".
* Remove TODO from docs in 'trace_print_events'.
* Rename 'glob' in "trace/control.c" as 'pattern_glob'.
* Implement 'trace_event_is_pattern' in terms of 'strchr'.
Changes in v9:
* Rebase on 7cd5da7 from master.
* Change dynamic tracing state from monitor only in enabled events.
* Assert dynamic tracing state changes are performed only on enabled events.
* Split 'trace_event_set_state_dynamic' into a generic and a backend-specific
part.
Changes in v8:
* Rebase on a2685bc from master.
* Fixed typo in commit message for "trace: Provide a detailed event control
interface".
Changes in v7:
* Rebase on a8a826a from master.
* Moved compilation & code generation for "trace/" into a separate makefile.
* Renamed targets and moved rules according to the new makefile structure.
Changes in v6:
* Fixed typos in the documentation of the 'TraceEvent' struct.
Changes in v5:
* Rebase on dbaf26b3 from master.
* Always initialize temporary 'ev' in 'trace_backend_init_events'.
* Make common sanity checks in 'trace_event_set_state_dynamic' and delay
backend-specific code to 'trace_event_set_state_dynamic_backend'.
Changes in v4:
* Documentation fixes and (re)formatting.
Changes in v3:
* Add some assertions.
* Remove debugging printf's.
* Improve documentation.
* Make 'trace_event_get_state_static' use run-time information, and leave
TRACE_*_ENABLED for compile-time checks.
Changes in v2:
* Minor compilation fixes.
Lluís Vilanova (7):
trace: [tracetool] Explicitly identify public backends
trace: Provide a generic tracing event descriptor
trace: Provide a detailed event control interface
trace: [monitor] Use new event control interface
trace: [default] Port to generic event information and new control
interface
trace: [simple] Port to generic event information and new control
interface
trace: [stderr] Port to generic event information and new control
interface
Makefile | 3 +
docs/tracing.txt | 44 +++-----
monitor.c | 13 ++
scripts/tracetool.py | 4 -
scripts/tracetool/backend/__init__.py | 16 +++
scripts/tracetool/backend/dtrace.py | 3 +
scripts/tracetool/backend/events.py | 23 ++++
scripts/tracetool/backend/simple.py | 22 ++--
scripts/tracetool/backend/stderr.py | 28 ++---
scripts/tracetool/backend/ust.py | 3 +
scripts/tracetool/format/events_c.py | 39 +++++++
scripts/tracetool/format/events_h.py | 50 +++++++++
scripts/tracetool/format/h.py | 9 --
trace/Makefile.objs | 24 ++++
trace/control-internal.h | 67 ++++++++++++
trace/control.c | 106 ++++++++++++++++--
trace/control.h | 190 ++++++++++++++++++++++++++++++---
trace/default.c | 5 -
trace/event-internal.h | 33 ++++++
trace/simple.c | 35 +-----
trace/simple.h | 6 -
trace/stderr.c | 34 +-----
trace/stderr.h | 11 --
23 files changed, 590 insertions(+), 178 deletions(-)
create mode 100644 scripts/tracetool/backend/events.py
create mode 100644 scripts/tracetool/format/events_c.py
create mode 100644 scripts/tracetool/format/events_h.py
create mode 100644 trace/control-internal.h
create mode 100644 trace/event-internal.h
delete mode 100644 trace/stderr.h
To: qemu-devel@nongnu.org
Cc: Stefan Hajnoczi <stefa...@gmail.com>
Cc: Blue Swirl <blauwir...@gmail.com>
