gecko-dev/build/merge_profdata.py
Nathan Froyd 93a44ee14e Bug 1553972 - make --with-pgo-profile-path take a directory; r=nalexander
e10s profiling or IR-based PGO instrumentation will both produce
multiple `.profraw` files that need to be handled in some way.  Since
clang's `-fprofile-generate` option takes a directory, it seems fitting
to make `--with-pgo-profile-path` mirror that by taking a directory, and
letting `merge_profdata.py` deal with whatever files it might find in
said directory.

Differential Revision: https://phabricator.services.mozilla.com/D32389

--HG--
extra : moz-landing-system : lando
2019-05-24 01:53:59 +00:00

19 lines
603 B
Python

# 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 glob
import subprocess
import sys
import buildconfig
def main(_, profile_dir):
profraw_files = glob.glob(profile_dir + '/*.profraw')
if not profraw_files:
print('Could not find any profraw files in ' + profile_dir)
sys.exit(1)
subprocess.check_call([buildconfig.substs['LLVM_PROFDATA'], 'merge',
'-o', 'merged.profdata'] + profraw_files)