1 #!/usr/bin/env python 2 3 '''Prepare a code coverage artifact. 4 5 - Collate raw profiles into one indexed profile. 6 - Delete the raw profiles. 7 - Copy the coverage mappings in the binaries directory. 8 ''' 9 10 import argparse 11 import glob 12 import os 13 import subprocess 14 import sys 15 16 def merge_raw_profiles(host_llvm_profdata, profile_data_dir): 17 print ':: Merging raw profiles...', 18 sys.stdout.flush() 19 raw_profiles = glob.glob(os.path.join(profile_data_dir, '*.profraw')) 20 manifest_path = os.path.join(profile_data_dir, 'profiles.manifest') 21 profdata_path = os.path.join(profile_data_dir, 'Coverage.profdata') 22 with open(manifest_path, 'w') as manifest: 23 manifest.write('\n'.join(raw_profiles)) 24 subprocess.check_call([host_llvm_profdata, 'merge', '-sparse', '-f', 25 manifest_path, '-o', profdata_path]) 26 for raw_profile in raw_profiles: 27 os.remove(raw_profile) 28 print 'Done!' 29 30 def extract_covmappings(host_llvm_cov, profile_data_dir, llvm_bin_dir): 31 print ':: Extracting covmappings...', 32 sys.stdout.flush() 33 for prog in os.listdir(llvm_bin_dir): 34 if prog == 'llvm-lit': 35 continue 36 covmapping_path = os.path.join(profile_data_dir, 37 os.path.basename(prog) + '.covmapping') 38 subprocess.check_call([host_llvm_cov, 'convert-for-testing', 39 os.path.join(llvm_bin_dir, prog), '-o', 40 covmapping_path]) 41 print 'Done!' 42 43 if __name__ == '__main__': 44 parser = argparse.ArgumentParser(description=__doc__) 45 parser.add_argument('host_llvm_profdata', help='Path to llvm-profdata') 46 parser.add_argument('host_llvm_cov', help='Path to llvm-cov') 47 parser.add_argument('profile_data_dir', 48 help='Path to the directory containing the raw profiles') 49 parser.add_argument('llvm_bin_dir', 50 help='Path to the directory containing llvm binaries') 51 args = parser.parse_args() 52 53 merge_raw_profiles(args.host_llvm_profdata, args.profile_data_dir) 54 extract_covmappings(args.host_llvm_cov, args.profile_data_dir, 55 args.llvm_bin_dir) 56
