[Qemu-devel] [PATCH v7 0/8] trace: Generic event state description

[Lluís Vilanova]

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 <address@hidden>
---

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 (8):
      build: Use separate makefile for "trace/"
      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


 .gitignore                            |    8 +
 Makefile                              |   18 ++-
 Makefile.objs                         |   64 +----------
 docs/tracing.txt                      |   44 +++-----
 monitor.c                             |   15 ++-
 scripts/tracetool.py                  |    4 -
 scripts/tracetool/backend/__init__.py |   16 +++
 scripts/tracetool/backend/dtrace.py   |    5 +
 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         |   13 +-
 trace.h                               |    6 +
 trace/Makefile.objs                   |   92 ++++++++++++++++
 trace/control-internal.h              |   60 +++++++++++
 trace/control.c                       |   99 +++++++++++++++---
 trace/control.h                       |  185 ++++++++++++++++++++++++++++++---
 trace/default.c                       |    6 +
 trace/event-internal.h                |   33 ++++++
 trace/simple.c                        |   33 +-----
 trace/simple.h                        |    6 -
 trace/stderr.c                        |   35 +-----
 trace/stderr.h                        |   11 --
 26 files changed, 667 insertions(+), 251 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.h
 create mode 100644 trace/Makefile.objs
 create mode 100644 trace/control-internal.h
 create mode 100644 trace/event-internal.h
 delete mode 100644 trace/stderr.h


To: address@hidden
Cc: Stefan Hajnoczi <address@hidden>
Cc: Blue Swirl <address@hidden>