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[utils] Generate html reports with the code coverage utility script

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Instead of extracting raw coverage mappings into an artifact directory,
actually generate useful html reports for a given list of binaries with
symbol demangling turned on.

No tests, but this is actively being used to drive the (still nascent)
coverage bot.

llvm-svn: 275927
This commit is contained in:
Vedant Kumar 2016-07-18 22:50:10 +00:00
parent 4df0821f1b
commit 271dba4dc2
1 changed files with 31 additions and 19 deletions
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50
utils/prepare-code-coverage-artifact.py
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@ -4,7 +4,7 @@
- Collate raw profiles into one indexed profile.
- Delete the raw profiles.
- Copy the coverage mappings in the binaries directory.
- Generate html reports for llvm binaries.
'''
import argparse
@ -13,7 +13,7 @@ import os
import subprocess
import sys
def merge_raw_profiles(host_llvm_profdata, profile_data_dir):
def merge_raw_profiles(host_llvm_profdata, profile_data_dir, preserve_profiles):
print ':: Merging raw profiles...',
sys.stdout.flush()
raw_profiles = glob.glob(os.path.join(profile_data_dir, '*.profraw'))
@ -23,33 +23,45 @@ def merge_raw_profiles(host_llvm_profdata, profile_data_dir):
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)
if not preserve_profiles:
for raw_profile in raw_profiles:
os.remove(raw_profile)
os.remove(manifest_path)
print 'Done!'
def extract_covmappings(host_llvm_cov, profile_data_dir, llvm_bin_dir):
print ':: Extracting covmappings...',
def prepare_html_report(host_llvm_cov, profile_data_dir, report_dir, binary):
print ':: Preparing html report for {0}...'.format(binary),
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])
binary_report_dir = os.path.join(report_dir, os.path.basename(binary))
profile = os.path.join(profile_data_dir, 'Coverage.profdata')
subprocess.check_call([host_llvm_cov, 'show', binary, '-format', 'html',
'-instr-profile', profile, '-o', binary_report_dir,
'-show-line-counts-or-regions',
'-Xdemangler', 'c++filt', '-Xdemangler', '-n'])
with open(os.path.join(binary_report_dir, 'summary.txt'), 'wb') as Summary:
subprocess.check_call([host_llvm_cov, 'report', binary,
'-instr-profile', profile], stdout=Summary)
print 'Done!'
def prepare_html_reports(host_llvm_cov, profile_data_dir, report_dir, binaries):
for binary in binaries:
prepare_html_report(host_llvm_cov, profile_data_dir, report_dir, binary)
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')
parser.add_argument('report_dir',
help='Path to the output directory for html reports')
parser.add_argument('binaries', metavar='B', type=str, nargs='+',
help='Path to an instrumented binary')
parser.add_argument('--preserve-profiles',
help='Do not delete raw profiles', action='store_true')
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)
merge_raw_profiles(args.host_llvm_profdata, args.profile_data_dir,
args.preserve_profiles)
prepare_html_reports(args.host_llvm_cov, args.profile_data_dir,
args.report_dir, args.binaries)