probes/trace-gen.py
author Nicholas Nethercote <nnethercote@mozilla.com>
Thu, 01 Sep 2016 15:01:16 +1000
changeset 312403 93657f8dedaafa384bcd49c71b52e195ec968de8
parent 287095 dd46a77cdf656048cce156d66fe0988e2e34ba84
permissions -rw-r--r--
Bug 1299727 - Rename NS_WARN_IF_FALSE as NS_WARNING_ASSERTION. r=erahm. The new name makes the sense of the condition much clearer. E.g. compare: NS_WARN_IF_FALSE(!rv.Failed()); with: NS_WARNING_ASSERTION(!rv.Failed()); The new name also makes it clearer that it only has effect in debug builds, because that's standard for assertions.

# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.

import os
import subprocess

def main(fp, input):
    temporary_file = 'mozilla-trace.h.tmp'
    subprocess.check_call(['dtrace', '-x', 'nolibs', '-h', '-s', input, '-o', temporary_file])
    
    with open(temporary_file, 'r') as temporary_fp:
        output = temporary_fp.read()
    fp.write(output.replace('if _DTRACE_VERSION', 'ifdef INCLUDE_MOZILLA_DTRACE'))
    os.remove(temporary_file)