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#!/usr/bin/env python
'''Prepare a code coverage artifact.
- Collate raw profiles into one indexed profile.
- Delete the raw profiles.
- Copy the coverage mappings in the binaries directory.
'''
import argparse
import glob
import os
import subprocess
import sys
def merge_raw_profiles(host_llvm_profdata, profile_data_dir):
print ':: Merging raw profiles...',
sys.stdout.flush()
raw_profiles = glob.glob(os.path.join(profile_data_dir, '*.profraw'))
manifest_path = os.path.join(profile_data_dir, 'profiles.manifest')
profdata_path = os.path.join(profile_data_dir, 'Coverage.profdata')
with open(manifest_path, 'w') as manifest:
manifest.write('\n'.join(raw_profiles))
subprocess.check_call([host_llvm_profdata, 'merge', '-sparse', '-f',
manifest_path, '-o', profdata_path])
for raw_profile in raw_profiles:
os.remove(raw_profile)
print 'Done!'
def extract_covmappings(host_llvm_cov, profile_data_dir, llvm_bin_dir):
print ':: Extracting covmappings...',
sys.stdout.flush()
for prog in os.listdir(llvm_bin_dir):
if prog == 'llvm-lit':
continue
covmapping_path = os.path.join(profile_data_dir,
os.path.basename(prog) + '.covmapping')
subprocess.check_call([host_llvm_cov, 'convert-for-testing',
os.path.join(llvm_bin_dir, prog), '-o',
covmapping_path])
print 'Done!'
if __name__ == '__main__':
parser = argparse.ArgumentParser(description=__doc__)
parser.add_argument('host_llvm_profdata', help='Path to llvm-profdata')
parser.add_argument('host_llvm_cov', help='Path to llvm-cov')
parser.add_argument('profile_data_dir',
help='Path to the directory containing the raw profiles')
parser.add_argument('llvm_bin_dir',
help='Path to the directory containing llvm binaries')
args = parser.parse_args()
merge_raw_profiles(args.host_llvm_profdata, args.profile_data_dir)
extract_covmappings(args.host_llvm_cov, args.profile_data_dir,
args.llvm_bin_dir)
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