qemu/scripts/tracetool/format/ust_events_c.py
Mohamad Gebai 9530570fa5 Modified the tracetool framework for LTTng 2.x
* A new format is required to generate definitions for ust tracepoints.
  Files ust_events_h.py and ust_events_c.py define common macros, while
  new function ust_events_h in events.py does the actual definition of
  each tracepoint.
* ust.py generates the new interface for calling userspace tracepoints
  with LTTng 2.x, replacing trace_name(args) to tracepoint(name, args).
* As explained in ust_events_c.py, -Wredundant-decls gives a warning
  when compiling with gcc 4.7 or older. This is specific to lttng-ust so
  for now use a pragma clause to avoid getting a warning.

Signed-off-by: Mohamad Gebai <mohamad.gebai@polymtl.ca>
Reviewed-by: Alex Bennée <alex@bennee.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
2014-02-19 11:08:53 +01:00

31 lines
874 B
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
Generate .c for LTTng ust event description.
"""
__author__ = "Mohamad Gebai <mohamad.gebai@polymtl.ca>"
__copyright__ = "Copyright 2012, Mohamad Gebai <mohamad.gebai@polymtl.ca>"
__license__ = "GPL version 2 or (at your option) any later version"
__maintainer__ = "Stefan Hajnoczi"
__email__ = "stefanha@redhat.com"
from tracetool import out
def begin(events):
out('/* This file is autogenerated by tracetool, do not edit. */',
'',
'#define TRACEPOINT_DEFINE',
'#define TRACEPOINT_CREATE_PROBES',
'',
'/* If gcc version 4.7 or older is used, LTTng ust gives a warning when compiling with',
' -Wredundant-decls.',
' */',
'#pragma GCC diagnostic ignored "-Wredundant-decls"',
'',
'#include "generated-ust-provider.h"')