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A36 PCB1.1 软件工程整理

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Li Jie
2024-04-17 19:45:26 +08:00
commit 3401b91efc
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284
fr3092_mcu/components/modules/littlefs/scripts/code.py Normal file
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#!/usr/bin/env python3
#
# Script to find code size at the function level. Basically just a bit wrapper
# around nm with some extra conveniences for comparing builds. Heavily inspired
# by Linux's Bloat-O-Meter.
#
import os
import glob
import itertools as it
import subprocess as sp
import shlex
import re
import csv
import collections as co
OBJ_PATHS = ['*.o']
def collect(paths, **args):
results = co.defaultdict(lambda: 0)
pattern = re.compile(
'^(?P<size>[0-9a-fA-F]+)' +
' (?P<type>[%s])' % re.escape(args['type']) +
' (?P<func>.+?)$')
for path in paths:
# note nm-tool may contain extra args
cmd = args['nm_tool'] + ['--size-sort', path]
if args.get('verbose'):
print(' '.join(shlex.quote(c) for c in cmd))
proc = sp.Popen(cmd,
stdout=sp.PIPE,
stderr=sp.PIPE if not args.get('verbose') else None,
universal_newlines=True,
errors='replace')
for line in proc.stdout:
m = pattern.match(line)
if m:
results[(path, m.group('func'))] += int(m.group('size'), 16)
proc.wait()
if proc.returncode != 0:
if not args.get('verbose'):
for line in proc.stderr:
sys.stdout.write(line)
sys.exit(-1)
flat_results = []
for (file, func), size in results.items():
# map to source files
if args.get('build_dir'):
file = re.sub('%s/*' % re.escape(args['build_dir']), '', file)
# replace .o with .c, different scripts report .o/.c, we need to
# choose one if we want to deduplicate csv files
file = re.sub('\.o$', '.c', file)
# discard internal functions
if not args.get('everything'):
if func.startswith('__'):
continue
# discard .8449 suffixes created by optimizer
func = re.sub('\.[0-9]+', '', func)
flat_results.append((file, func, size))
return flat_results
def main(**args):
def openio(path, mode='r'):
if path == '-':
if 'r' in mode:
return os.fdopen(os.dup(sys.stdin.fileno()), 'r')
else:
return os.fdopen(os.dup(sys.stdout.fileno()), 'w')
else:
return open(path, mode)
# find sizes
if not args.get('use', None):
# find .o files
paths = []
for path in args['obj_paths']:
if os.path.isdir(path):
path = path + '/*.o'
for path in glob.glob(path):
paths.append(path)
if not paths:
print('no .obj files found in %r?' % args['obj_paths'])
sys.exit(-1)
results = collect(paths, **args)
else:
with openio(args['use']) as f:
r = csv.DictReader(f)
results = [
( result['file'],
result['name'],
int(result['code_size']))
for result in r
if result.get('code_size') not in {None, ''}]
total = 0
for _, _, size in results:
total += size
# find previous results?
if args.get('diff'):
try:
with openio(args['diff']) as f:
r = csv.DictReader(f)
prev_results = [
( result['file'],
result['name'],
int(result['code_size']))
for result in r
if result.get('code_size') not in {None, ''}]
except FileNotFoundError:
prev_results = []
prev_total = 0
for _, _, size in prev_results:
prev_total += size
# write results to CSV
if args.get('output'):
merged_results = co.defaultdict(lambda: {})
other_fields = []
# merge?
if args.get('merge'):
try:
with openio(args['merge']) as f:
r = csv.DictReader(f)
for result in r:
file = result.pop('file', '')
func = result.pop('name', '')
result.pop('code_size', None)
merged_results[(file, func)] = result
other_fields = result.keys()
except FileNotFoundError:
pass
for file, func, size in results:
merged_results[(file, func)]['code_size'] = size
with openio(args['output'], 'w') as f:
w = csv.DictWriter(f, ['file', 'name', *other_fields, 'code_size'])
w.writeheader()
for (file, func), result in sorted(merged_results.items()):
w.writerow({'file': file, 'name': func, **result})
# print results
def dedup_entries(results, by='name'):
entries = co.defaultdict(lambda: 0)
for file, func, size in results:
entry = (file if by == 'file' else func)
entries[entry] += size
return entries
def diff_entries(olds, news):
diff = co.defaultdict(lambda: (0, 0, 0, 0))
for name, new in news.items():
diff[name] = (0, new, new, 1.0)
for name, old in olds.items():
_, new, _, _ = diff[name]
diff[name] = (old, new, new-old, (new-old)/old if old else 1.0)
return diff
def sorted_entries(entries):
if args.get('size_sort'):
return sorted(entries, key=lambda x: (-x[1], x))
elif args.get('reverse_size_sort'):
return sorted(entries, key=lambda x: (+x[1], x))
else:
return sorted(entries)
def sorted_diff_entries(entries):
if args.get('size_sort'):
return sorted(entries, key=lambda x: (-x[1][1], x))
elif args.get('reverse_size_sort'):
return sorted(entries, key=lambda x: (+x[1][1], x))
else:
return sorted(entries, key=lambda x: (-x[1][3], x))
def print_header(by=''):
if not args.get('diff'):
print('%-36s %7s' % (by, 'size'))
else:
print('%-36s %7s %7s %7s' % (by, 'old', 'new', 'diff'))
def print_entry(name, size):
print("%-36s %7d" % (name, size))
def print_diff_entry(name, old, new, diff, ratio):
print("%-36s %7s %7s %+7d%s" % (name,
old or "-",
new or "-",
diff,
' (%+.1f%%)' % (100*ratio) if ratio else ''))
def print_entries(by='name'):
entries = dedup_entries(results, by=by)
if not args.get('diff'):
print_header(by=by)
for name, size in sorted_entries(entries.items()):
print_entry(name, size)
else:
prev_entries = dedup_entries(prev_results, by=by)
diff = diff_entries(prev_entries, entries)
print_header(by='%s (%d added, %d removed)' % (by,
sum(1 for old, _, _, _ in diff.values() if not old),
sum(1 for _, new, _, _ in diff.values() if not new)))
for name, (old, new, diff, ratio) in sorted_diff_entries(
diff.items()):
if ratio or args.get('all'):
print_diff_entry(name, old, new, diff, ratio)
def print_totals():
if not args.get('diff'):
print_entry('TOTAL', total)
else:
ratio = (0.0 if not prev_total and not total
else 1.0 if not prev_total
else (total-prev_total)/prev_total)
print_diff_entry('TOTAL',
prev_total, total,
total-prev_total,
ratio)
if args.get('quiet'):
pass
elif args.get('summary'):
print_header()
print_totals()
elif args.get('files'):
print_entries(by='file')
print_totals()
else:
print_entries(by='name')
print_totals()
if __name__ == "__main__":
import argparse
import sys
parser = argparse.ArgumentParser(
description="Find code size at the function level.")
parser.add_argument('obj_paths', nargs='*', default=OBJ_PATHS,
help="Description of where to find *.o files. May be a directory \
or a list of paths. Defaults to %r." % OBJ_PATHS)
parser.add_argument('-v', '--verbose', action='store_true',
help="Output commands that run behind the scenes.")
parser.add_argument('-q', '--quiet', action='store_true',
help="Don't show anything, useful with -o.")
parser.add_argument('-o', '--output',
help="Specify CSV file to store results.")
parser.add_argument('-u', '--use',
help="Don't compile and find code sizes, instead use this CSV file.")
parser.add_argument('-d', '--diff',
help="Specify CSV file to diff code size against.")
parser.add_argument('-m', '--merge',
help="Merge with an existing CSV file when writing to output.")
parser.add_argument('-a', '--all', action='store_true',
help="Show all functions, not just the ones that changed.")
parser.add_argument('-A', '--everything', action='store_true',
help="Include builtin and libc specific symbols.")
parser.add_argument('-s', '--size-sort', action='store_true',
help="Sort by size.")
parser.add_argument('-S', '--reverse-size-sort', action='store_true',
help="Sort by size, but backwards.")
parser.add_argument('-F', '--files', action='store_true',
help="Show file-level code sizes. Note this does not include padding! "
"So sizes may differ from other tools.")
parser.add_argument('-Y', '--summary', action='store_true',
help="Only show the total code size.")
parser.add_argument('--type', default='tTrRdD',
help="Type of symbols to report, this uses the same single-character "
"type-names emitted by nm. Defaults to %(default)r.")
parser.add_argument('--nm-tool', default=['nm'], type=lambda x: x.split(),
help="Path to the nm tool to use.")
parser.add_argument('--build-dir',
help="Specify the relative build directory. Used to map object files \
to the correct source files.")
sys.exit(main(**vars(parser.parse_args())))

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fr3092_mcu/components/modules/littlefs/scripts/coverage.py Normal file
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#!/usr/bin/env python3
#
# Parse and report coverage info from .info files generated by lcov
#
import os
import glob
import csv
import re
import collections as co
import bisect as b
INFO_PATHS = ['tests/*.toml.info']
def collect(paths, **args):
file = None
funcs = []
lines = co.defaultdict(lambda: 0)
pattern = re.compile(
'^(?P<file>SF:/?(?P<file_name>.*))$'
'|^(?P<func>FN:(?P<func_lineno>[0-9]*),(?P<func_name>.*))$'
'|^(?P<line>DA:(?P<line_lineno>[0-9]*),(?P<line_hits>[0-9]*))$')
for path in paths:
with open(path) as f:
for line in f:
m = pattern.match(line)
if m and m.group('file'):
file = m.group('file_name')
elif m and file and m.group('func'):
funcs.append((file, int(m.group('func_lineno')),
m.group('func_name')))
elif m and file and m.group('line'):
lines[(file, int(m.group('line_lineno')))] += (
int(m.group('line_hits')))
# map line numbers to functions
funcs.sort()
def func_from_lineno(file, lineno):
i = b.bisect(funcs, (file, lineno))
if i and funcs[i-1][0] == file:
return funcs[i-1][2]
else:
return None
# reduce to function info
reduced_funcs = co.defaultdict(lambda: (0, 0))
for (file, line_lineno), line_hits in lines.items():
func = func_from_lineno(file, line_lineno)
if not func:
continue
hits, count = reduced_funcs[(file, func)]
reduced_funcs[(file, func)] = (hits + (line_hits > 0), count + 1)
results = []
for (file, func), (hits, count) in reduced_funcs.items():
# discard internal/testing functions (test_* injected with
# internal testing)
if not args.get('everything'):
if func.startswith('__') or func.startswith('test_'):
continue
# discard .8449 suffixes created by optimizer
func = re.sub('\.[0-9]+', '', func)
results.append((file, func, hits, count))
return results
def main(**args):
def openio(path, mode='r'):
if path == '-':
if 'r' in mode:
return os.fdopen(os.dup(sys.stdin.fileno()), 'r')
else:
return os.fdopen(os.dup(sys.stdout.fileno()), 'w')
else:
return open(path, mode)
# find coverage
if not args.get('use'):
# find *.info files
paths = []
for path in args['info_paths']:
if os.path.isdir(path):
path = path + '/*.gcov'
for path in glob.glob(path):
paths.append(path)
if not paths:
print('no .info files found in %r?' % args['info_paths'])
sys.exit(-1)
results = collect(paths, **args)
else:
with openio(args['use']) as f:
r = csv.DictReader(f)
results = [
( result['file'],
result['name'],
int(result['coverage_hits']),
int(result['coverage_count']))
for result in r
if result.get('coverage_hits') not in {None, ''}
if result.get('coverage_count') not in {None, ''}]
total_hits, total_count = 0, 0
for _, _, hits, count in results:
total_hits += hits
total_count += count
# find previous results?
if args.get('diff'):
try:
with openio(args['diff']) as f:
r = csv.DictReader(f)
prev_results = [
( result['file'],
result['name'],
int(result['coverage_hits']),
int(result['coverage_count']))
for result in r
if result.get('coverage_hits') not in {None, ''}
if result.get('coverage_count') not in {None, ''}]
except FileNotFoundError:
prev_results = []
prev_total_hits, prev_total_count = 0, 0
for _, _, hits, count in prev_results:
prev_total_hits += hits
prev_total_count += count
# write results to CSV
if args.get('output'):
merged_results = co.defaultdict(lambda: {})
other_fields = []
# merge?
if args.get('merge'):
try:
with openio(args['merge']) as f:
r = csv.DictReader(f)
for result in r:
file = result.pop('file', '')
func = result.pop('name', '')
result.pop('coverage_hits', None)
result.pop('coverage_count', None)
merged_results[(file, func)] = result
other_fields = result.keys()
except FileNotFoundError:
pass
for file, func, hits, count in results:
merged_results[(file, func)]['coverage_hits'] = hits
merged_results[(file, func)]['coverage_count'] = count
with openio(args['output'], 'w') as f:
w = csv.DictWriter(f, ['file', 'name', *other_fields, 'coverage_hits', 'coverage_count'])
w.writeheader()
for (file, func), result in sorted(merged_results.items()):
w.writerow({'file': file, 'name': func, **result})
# print results
def dedup_entries(results, by='name'):
entries = co.defaultdict(lambda: (0, 0))
for file, func, hits, count in results:
entry = (file if by == 'file' else func)
entry_hits, entry_count = entries[entry]
entries[entry] = (entry_hits + hits, entry_count + count)
return entries
def diff_entries(olds, news):
diff = co.defaultdict(lambda: (0, 0, 0, 0, 0, 0, 0))
for name, (new_hits, new_count) in news.items():
diff[name] = (
0, 0,
new_hits, new_count,
new_hits, new_count,
(new_hits/new_count if new_count else 1.0) - 1.0)
for name, (old_hits, old_count) in olds.items():
_, _, new_hits, new_count, _, _, _ = diff[name]
diff[name] = (
old_hits, old_count,
new_hits, new_count,
new_hits-old_hits, new_count-old_count,
((new_hits/new_count if new_count else 1.0)
- (old_hits/old_count if old_count else 1.0)))
return diff
def sorted_entries(entries):
if args.get('coverage_sort'):
return sorted(entries, key=lambda x: (-(x[1][0]/x[1][1] if x[1][1] else -1), x))
elif args.get('reverse_coverage_sort'):
return sorted(entries, key=lambda x: (+(x[1][0]/x[1][1] if x[1][1] else -1), x))
else:
return sorted(entries)
def sorted_diff_entries(entries):
if args.get('coverage_sort'):
return sorted(entries, key=lambda x: (-(x[1][2]/x[1][3] if x[1][3] else -1), x))
elif args.get('reverse_coverage_sort'):
return sorted(entries, key=lambda x: (+(x[1][2]/x[1][3] if x[1][3] else -1), x))
else:
return sorted(entries, key=lambda x: (-x[1][6], x))
def print_header(by=''):
if not args.get('diff'):
print('%-36s %19s' % (by, 'hits/line'))
else:
print('%-36s %19s %19s %11s' % (by, 'old', 'new', 'diff'))
def print_entry(name, hits, count):
print("%-36s %11s %7s" % (name,
'%d/%d' % (hits, count)
if count else '-',
'%.1f%%' % (100*hits/count)
if count else '-'))
def print_diff_entry(name,
old_hits, old_count,
new_hits, new_count,
diff_hits, diff_count,
ratio):
print("%-36s %11s %7s %11s %7s %11s%s" % (name,
'%d/%d' % (old_hits, old_count)
if old_count else '-',
'%.1f%%' % (100*old_hits/old_count)
if old_count else '-',
'%d/%d' % (new_hits, new_count)
if new_count else '-',
'%.1f%%' % (100*new_hits/new_count)
if new_count else '-',
'%+d/%+d' % (diff_hits, diff_count),
' (%+.1f%%)' % (100*ratio) if ratio else ''))
def print_entries(by='name'):
entries = dedup_entries(results, by=by)
if not args.get('diff'):
print_header(by=by)
for name, (hits, count) in sorted_entries(entries.items()):
print_entry(name, hits, count)
else:
prev_entries = dedup_entries(prev_results, by=by)
diff = diff_entries(prev_entries, entries)
print_header(by='%s (%d added, %d removed)' % (by,
sum(1 for _, old, _, _, _, _, _ in diff.values() if not old),
sum(1 for _, _, _, new, _, _, _ in diff.values() if not new)))
for name, (
old_hits, old_count,
new_hits, new_count,
diff_hits, diff_count, ratio) in sorted_diff_entries(
diff.items()):
if ratio or args.get('all'):
print_diff_entry(name,
old_hits, old_count,
new_hits, new_count,
diff_hits, diff_count,
ratio)
def print_totals():
if not args.get('diff'):
print_entry('TOTAL', total_hits, total_count)
else:
ratio = ((total_hits/total_count
if total_count else 1.0)
- (prev_total_hits/prev_total_count
if prev_total_count else 1.0))
print_diff_entry('TOTAL',
prev_total_hits, prev_total_count,
total_hits, total_count,
total_hits-prev_total_hits, total_count-prev_total_count,
ratio)
if args.get('quiet'):
pass
elif args.get('summary'):
print_header()
print_totals()
elif args.get('files'):
print_entries(by='file')
print_totals()
else:
print_entries(by='name')
print_totals()
if __name__ == "__main__":
import argparse
import sys
parser = argparse.ArgumentParser(
description="Parse and report coverage info from .info files \
generated by lcov")
parser.add_argument('info_paths', nargs='*', default=INFO_PATHS,
help="Description of where to find *.info files. May be a directory \
or list of paths. *.info files will be merged to show the total \
coverage. Defaults to %r." % INFO_PATHS)
parser.add_argument('-v', '--verbose', action='store_true',
help="Output commands that run behind the scenes.")
parser.add_argument('-o', '--output',
help="Specify CSV file to store results.")
parser.add_argument('-u', '--use',
help="Don't do any work, instead use this CSV file.")
parser.add_argument('-d', '--diff',
help="Specify CSV file to diff code size against.")
parser.add_argument('-m', '--merge',
help="Merge with an existing CSV file when writing to output.")
parser.add_argument('-a', '--all', action='store_true',
help="Show all functions, not just the ones that changed.")
parser.add_argument('-A', '--everything', action='store_true',
help="Include builtin and libc specific symbols.")
parser.add_argument('-s', '--coverage-sort', action='store_true',
help="Sort by coverage.")
parser.add_argument('-S', '--reverse-coverage-sort', action='store_true',
help="Sort by coverage, but backwards.")
parser.add_argument('-F', '--files', action='store_true',
help="Show file-level coverage.")
parser.add_argument('-Y', '--summary', action='store_true',
help="Only show the total coverage.")
parser.add_argument('-q', '--quiet', action='store_true',
help="Don't show anything, useful with -o.")
parser.add_argument('--build-dir',
help="Specify the relative build directory. Used to map object files \
to the correct source files.")
sys.exit(main(**vars(parser.parse_args())))

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fr3092_mcu/components/modules/littlefs/scripts/data.py Normal file
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#!/usr/bin/env python3
#
# Script to find data size at the function level. Basically just a bit wrapper
# around nm with some extra conveniences for comparing builds. Heavily inspired
# by Linux's Bloat-O-Meter.
#
import os
import glob
import itertools as it
import subprocess as sp
import shlex
import re
import csv
import collections as co
OBJ_PATHS = ['*.o']
def collect(paths, **args):
results = co.defaultdict(lambda: 0)
pattern = re.compile(
'^(?P<size>[0-9a-fA-F]+)' +
' (?P<type>[%s])' % re.escape(args['type']) +
' (?P<func>.+?)$')
for path in paths:
# note nm-tool may contain extra args
cmd = args['nm_tool'] + ['--size-sort', path]
if args.get('verbose'):
print(' '.join(shlex.quote(c) for c in cmd))
proc = sp.Popen(cmd,
stdout=sp.PIPE,
stderr=sp.PIPE if not args.get('verbose') else None,
universal_newlines=True,
errors='replace')
for line in proc.stdout:
m = pattern.match(line)
if m:
results[(path, m.group('func'))] += int(m.group('size'), 16)
proc.wait()
if proc.returncode != 0:
if not args.get('verbose'):
for line in proc.stderr:
sys.stdout.write(line)
sys.exit(-1)
flat_results = []
for (file, func), size in results.items():
# map to source files
if args.get('build_dir'):
file = re.sub('%s/*' % re.escape(args['build_dir']), '', file)
# replace .o with .c, different scripts report .o/.c, we need to
# choose one if we want to deduplicate csv files
file = re.sub('\.o$', '.c', file)
# discard internal functions
if not args.get('everything'):
if func.startswith('__'):
continue
# discard .8449 suffixes created by optimizer
func = re.sub('\.[0-9]+', '', func)
flat_results.append((file, func, size))
return flat_results
def main(**args):
def openio(path, mode='r'):
if path == '-':
if 'r' in mode:
return os.fdopen(os.dup(sys.stdin.fileno()), 'r')
else:
return os.fdopen(os.dup(sys.stdout.fileno()), 'w')
else:
return open(path, mode)
# find sizes
if not args.get('use', None):
# find .o files
paths = []
for path in args['obj_paths']:
if os.path.isdir(path):
path = path + '/*.o'
for path in glob.glob(path):
paths.append(path)
if not paths:
print('no .obj files found in %r?' % args['obj_paths'])
sys.exit(-1)
results = collect(paths, **args)
else:
with openio(args['use']) as f:
r = csv.DictReader(f)
results = [
( result['file'],
result['name'],
int(result['data_size']))
for result in r
if result.get('data_size') not in {None, ''}]
total = 0
for _, _, size in results:
total += size
# find previous results?
if args.get('diff'):
try:
with openio(args['diff']) as f:
r = csv.DictReader(f)
prev_results = [
( result['file'],
result['name'],
int(result['data_size']))
for result in r
if result.get('data_size') not in {None, ''}]
except FileNotFoundError:
prev_results = []
prev_total = 0
for _, _, size in prev_results:
prev_total += size
# write results to CSV
if args.get('output'):
merged_results = co.defaultdict(lambda: {})
other_fields = []
# merge?
if args.get('merge'):
try:
with openio(args['merge']) as f:
r = csv.DictReader(f)
for result in r:
file = result.pop('file', '')
func = result.pop('name', '')
result.pop('data_size', None)
merged_results[(file, func)] = result
other_fields = result.keys()
except FileNotFoundError:
pass
for file, func, size in results:
merged_results[(file, func)]['data_size'] = size
with openio(args['output'], 'w') as f:
w = csv.DictWriter(f, ['file', 'name', *other_fields, 'data_size'])
w.writeheader()
for (file, func), result in sorted(merged_results.items()):
w.writerow({'file': file, 'name': func, **result})
# print results
def dedup_entries(results, by='name'):
entries = co.defaultdict(lambda: 0)
for file, func, size in results:
entry = (file if by == 'file' else func)
entries[entry] += size
return entries
def diff_entries(olds, news):
diff = co.defaultdict(lambda: (0, 0, 0, 0))
for name, new in news.items():
diff[name] = (0, new, new, 1.0)
for name, old in olds.items():
_, new, _, _ = diff[name]
diff[name] = (old, new, new-old, (new-old)/old if old else 1.0)
return diff
def sorted_entries(entries):
if args.get('size_sort'):
return sorted(entries, key=lambda x: (-x[1], x))
elif args.get('reverse_size_sort'):
return sorted(entries, key=lambda x: (+x[1], x))
else:
return sorted(entries)
def sorted_diff_entries(entries):
if args.get('size_sort'):
return sorted(entries, key=lambda x: (-x[1][1], x))
elif args.get('reverse_size_sort'):
return sorted(entries, key=lambda x: (+x[1][1], x))
else:
return sorted(entries, key=lambda x: (-x[1][3], x))
def print_header(by=''):
if not args.get('diff'):
print('%-36s %7s' % (by, 'size'))
else:
print('%-36s %7s %7s %7s' % (by, 'old', 'new', 'diff'))
def print_entry(name, size):
print("%-36s %7d" % (name, size))
def print_diff_entry(name, old, new, diff, ratio):
print("%-36s %7s %7s %+7d%s" % (name,
old or "-",
new or "-",
diff,
' (%+.1f%%)' % (100*ratio) if ratio else ''))
def print_entries(by='name'):
entries = dedup_entries(results, by=by)
if not args.get('diff'):
print_header(by=by)
for name, size in sorted_entries(entries.items()):
print_entry(name, size)
else:
prev_entries = dedup_entries(prev_results, by=by)
diff = diff_entries(prev_entries, entries)
print_header(by='%s (%d added, %d removed)' % (by,
sum(1 for old, _, _, _ in diff.values() if not old),
sum(1 for _, new, _, _ in diff.values() if not new)))
for name, (old, new, diff, ratio) in sorted_diff_entries(
diff.items()):
if ratio or args.get('all'):
print_diff_entry(name, old, new, diff, ratio)
def print_totals():
if not args.get('diff'):
print_entry('TOTAL', total)
else:
ratio = (0.0 if not prev_total and not total
else 1.0 if not prev_total
else (total-prev_total)/prev_total)
print_diff_entry('TOTAL',
prev_total, total,
total-prev_total,
ratio)
if args.get('quiet'):
pass
elif args.get('summary'):
print_header()
print_totals()
elif args.get('files'):
print_entries(by='file')
print_totals()
else:
print_entries(by='name')
print_totals()
if __name__ == "__main__":
import argparse
import sys
parser = argparse.ArgumentParser(
description="Find data size at the function level.")
parser.add_argument('obj_paths', nargs='*', default=OBJ_PATHS,
help="Description of where to find *.o files. May be a directory \
or a list of paths. Defaults to %r." % OBJ_PATHS)
parser.add_argument('-v', '--verbose', action='store_true',
help="Output commands that run behind the scenes.")
parser.add_argument('-q', '--quiet', action='store_true',
help="Don't show anything, useful with -o.")
parser.add_argument('-o', '--output',
help="Specify CSV file to store results.")
parser.add_argument('-u', '--use',
help="Don't compile and find data sizes, instead use this CSV file.")
parser.add_argument('-d', '--diff',
help="Specify CSV file to diff data size against.")
parser.add_argument('-m', '--merge',
help="Merge with an existing CSV file when writing to output.")
parser.add_argument('-a', '--all', action='store_true',
help="Show all functions, not just the ones that changed.")
parser.add_argument('-A', '--everything', action='store_true',
help="Include builtin and libc specific symbols.")
parser.add_argument('-s', '--size-sort', action='store_true',
help="Sort by size.")
parser.add_argument('-S', '--reverse-size-sort', action='store_true',
help="Sort by size, but backwards.")
parser.add_argument('-F', '--files', action='store_true',
help="Show file-level data sizes. Note this does not include padding! "
"So sizes may differ from other tools.")
parser.add_argument('-Y', '--summary', action='store_true',
help="Only show the total data size.")
parser.add_argument('--type', default='dDbB',
help="Type of symbols to report, this uses the same single-character "
"type-names emitted by nm. Defaults to %(default)r.")
parser.add_argument('--nm-tool', default=['nm'], type=lambda x: x.split(),
help="Path to the nm tool to use.")
parser.add_argument('--build-dir',
help="Specify the relative build directory. Used to map object files \
to the correct source files.")
sys.exit(main(**vars(parser.parse_args())))

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#!/usr/bin/env python3
import re
import sys
PATTERN = ['LFS_ASSERT', 'assert']
PREFIX = 'LFS'
MAXWIDTH = 16
ASSERT = "__{PREFIX}_ASSERT_{TYPE}_{COMP}"
FAIL = """
__attribute__((unused))
static void __{prefix}_assert_fail_{type}(
const char *file, int line, const char *comp,
{ctype} lh, size_t lsize,
{ctype} rh, size_t rsize) {{
printf("%s:%d:assert: assert failed with ", file, line);
__{prefix}_assert_print_{type}(lh, lsize);
printf(", expected %s ", comp);
__{prefix}_assert_print_{type}(rh, rsize);
printf("\\n");
fflush(NULL);
raise(SIGABRT);
}}
"""
COMP = {
'==': 'eq',
'!=': 'ne',
'<=': 'le',
'>=': 'ge',
'<': 'lt',
'>': 'gt',
}
TYPE = {
'int': {
'ctype': 'intmax_t',
'fail': FAIL,
'print': """
__attribute__((unused))
static void __{prefix}_assert_print_{type}({ctype} v, size_t size) {{
(void)size;
printf("%"PRIiMAX, v);
}}
""",
'assert': """
#define __{PREFIX}_ASSERT_{TYPE}_{COMP}(file, line, lh, rh)
do {{
__typeof__(lh) _lh = lh;
__typeof__(lh) _rh = (__typeof__(lh))rh;
if (!(_lh {op} _rh)) {{
__{prefix}_assert_fail_{type}(file, line, "{comp}",
(intmax_t)_lh, 0, (intmax_t)_rh, 0);
}}
}} while (0)
"""
},
'bool': {
'ctype': 'bool',
'fail': FAIL,
'print': """
__attribute__((unused))
static void __{prefix}_assert_print_{type}({ctype} v, size_t size) {{
(void)size;
printf("%s", v ? "true" : "false");
}}
""",
'assert': """
#define __{PREFIX}_ASSERT_{TYPE}_{COMP}(file, line, lh, rh)
do {{
bool _lh = !!(lh);
bool _rh = !!(rh);
if (!(_lh {op} _rh)) {{
__{prefix}_assert_fail_{type}(file, line, "{comp}",
_lh, 0, _rh, 0);
}}
}} while (0)
"""
},
'mem': {
'ctype': 'const void *',
'fail': FAIL,
'print': """
__attribute__((unused))
static void __{prefix}_assert_print_{type}({ctype} v, size_t size) {{
const uint8_t *s = v;
printf("\\\"");
for (size_t i = 0; i < size && i < {maxwidth}; i++) {{
if (s[i] >= ' ' && s[i] <= '~') {{
printf("%c", s[i]);
}} else {{
printf("\\\\x%02x", s[i]);
}}
}}
if (size > {maxwidth}) {{
printf("...");
}}
printf("\\\"");
}}
""",
'assert': """
#define __{PREFIX}_ASSERT_{TYPE}_{COMP}(file, line, lh, rh, size)
do {{
const void *_lh = lh;
const void *_rh = rh;
if (!(memcmp(_lh, _rh, size) {op} 0)) {{
__{prefix}_assert_fail_{type}(file, line, "{comp}",
_lh, size, _rh, size);
}}
}} while (0)
"""
},
'str': {
'ctype': 'const char *',
'fail': FAIL,
'print': """
__attribute__((unused))
static void __{prefix}_assert_print_{type}({ctype} v, size_t size) {{
__{prefix}_assert_print_mem(v, size);
}}
""",
'assert': """
#define __{PREFIX}_ASSERT_{TYPE}_{COMP}(file, line, lh, rh)
do {{
const char *_lh = lh;
const char *_rh = rh;
if (!(strcmp(_lh, _rh) {op} 0)) {{
__{prefix}_assert_fail_{type}(file, line, "{comp}",
_lh, strlen(_lh), _rh, strlen(_rh));
}}
}} while (0)
"""
}
}
def mkdecls(outf, maxwidth=16):
outf.write("#include <stdio.h>\n")
outf.write("#include <stdbool.h>\n")
outf.write("#include <stdint.h>\n")
outf.write("#include <inttypes.h>\n")
outf.write("#include <signal.h>\n")
for type, desc in sorted(TYPE.items()):
format = {
'type': type.lower(), 'TYPE': type.upper(),
'ctype': desc['ctype'],
'prefix': PREFIX.lower(), 'PREFIX': PREFIX.upper(),
'maxwidth': maxwidth,
}
outf.write(re.sub('\s+', ' ',
desc['print'].strip().format(**format))+'\n')
outf.write(re.sub('\s+', ' ',
desc['fail'].strip().format(**format))+'\n')
for op, comp in sorted(COMP.items()):
format.update({
'comp': comp.lower(), 'COMP': comp.upper(),
'op': op,
})
outf.write(re.sub('\s+', ' ',
desc['assert'].strip().format(**format))+'\n')
def mkassert(type, comp, lh, rh, size=None):
format = {
'type': type.lower(), 'TYPE': type.upper(),
'comp': comp.lower(), 'COMP': comp.upper(),
'prefix': PREFIX.lower(), 'PREFIX': PREFIX.upper(),
'lh': lh.strip(' '),
'rh': rh.strip(' '),
'size': size,
}
if size:
return ((ASSERT + '(__FILE__, __LINE__, {lh}, {rh}, {size})')
.format(**format))
else:
return ((ASSERT + '(__FILE__, __LINE__, {lh}, {rh})')
.format(**format))
# simple recursive descent parser
LEX = {
'ws': [r'(?:\s|\n|#.*?\n|//.*?\n|/\*.*?\*/)+'],
'assert': PATTERN,
'string': [r'"(?:\\.|[^"])*"', r"'(?:\\.|[^'])\'"],
'arrow': ['=>'],
'paren': ['\(', '\)'],
'op': ['strcmp', 'memcmp', '->'],
'comp': ['==', '!=', '<=', '>=', '<', '>'],
'logic': ['\&\&', '\|\|'],
'sep': [':', ';', '\{', '\}', ','],
}
class ParseFailure(Exception):
def __init__(self, expected, found):
self.expected = expected
self.found = found
def __str__(self):
return "expected %r, found %s..." % (
self.expected, repr(self.found)[:70])
class Parse:
def __init__(self, inf, lexemes):
p = '|'.join('(?P<%s>%s)' % (n, '|'.join(l))
for n, l in lexemes.items())
p = re.compile(p, re.DOTALL)
data = inf.read()
tokens = []
while True:
m = p.search(data)
if m:
if m.start() > 0:
tokens.append((None, data[:m.start()]))
tokens.append((m.lastgroup, m.group()))
data = data[m.end():]
else:
tokens.append((None, data))
break
self.tokens = tokens
self.off = 0
def lookahead(self, *pattern):
if self.off < len(self.tokens):
token = self.tokens[self.off]
if token[0] in pattern or token[1] in pattern:
self.m = token[1]
return self.m
self.m = None
return self.m
def accept(self, *patterns):
m = self.lookahead(*patterns)
if m is not None:
self.off += 1
return m
def expect(self, *patterns):
m = self.accept(*patterns)
if not m:
raise ParseFailure(patterns, self.tokens[self.off:])
return m
def push(self):
return self.off
def pop(self, state):
self.off = state
def passert(p):
def pastr(p):
p.expect('assert') ; p.accept('ws') ; p.expect('(') ; p.accept('ws')
p.expect('strcmp') ; p.accept('ws') ; p.expect('(') ; p.accept('ws')
lh = pexpr(p) ; p.accept('ws')
p.expect(',') ; p.accept('ws')
rh = pexpr(p) ; p.accept('ws')
p.expect(')') ; p.accept('ws')
comp = p.expect('comp') ; p.accept('ws')
p.expect('0') ; p.accept('ws')
p.expect(')')
return mkassert('str', COMP[comp], lh, rh)
def pamem(p):
p.expect('assert') ; p.accept('ws') ; p.expect('(') ; p.accept('ws')
p.expect('memcmp') ; p.accept('ws') ; p.expect('(') ; p.accept('ws')
lh = pexpr(p) ; p.accept('ws')
p.expect(',') ; p.accept('ws')
rh = pexpr(p) ; p.accept('ws')
p.expect(',') ; p.accept('ws')
size = pexpr(p) ; p.accept('ws')
p.expect(')') ; p.accept('ws')
comp = p.expect('comp') ; p.accept('ws')
p.expect('0') ; p.accept('ws')
p.expect(')')
return mkassert('mem', COMP[comp], lh, rh, size)
def paint(p):
p.expect('assert') ; p.accept('ws') ; p.expect('(') ; p.accept('ws')
lh = pexpr(p) ; p.accept('ws')
comp = p.expect('comp') ; p.accept('ws')
rh = pexpr(p) ; p.accept('ws')
p.expect(')')
return mkassert('int', COMP[comp], lh, rh)
def pabool(p):
p.expect('assert') ; p.accept('ws') ; p.expect('(') ; p.accept('ws')
lh = pexprs(p) ; p.accept('ws')
p.expect(')')
return mkassert('bool', 'eq', lh, 'true')
def pa(p):
return p.expect('assert')
state = p.push()
lastf = None
for pa in [pastr, pamem, paint, pabool, pa]:
try:
return pa(p)
except ParseFailure as f:
p.pop(state)
lastf = f
else:
raise lastf
def pexpr(p):
res = []
while True:
if p.accept('('):
res.append(p.m)
while True:
res.append(pexprs(p))
if p.accept('sep'):
res.append(p.m)
else:
break
res.append(p.expect(')'))
elif p.lookahead('assert'):
res.append(passert(p))
elif p.accept('assert', 'ws', 'string', 'op', None):
res.append(p.m)
else:
return ''.join(res)
def pexprs(p):
res = []
while True:
res.append(pexpr(p))
if p.accept('comp', 'logic', ','):
res.append(p.m)
else:
return ''.join(res)
def pstmt(p):
ws = p.accept('ws') or ''
lh = pexprs(p)
if p.accept('=>'):
rh = pexprs(p)
return ws + mkassert('int', 'eq', lh, rh)
else:
return ws + lh
def main(args):
inf = open(args.input, 'r') if args.input else sys.stdin
outf = open(args.output, 'w') if args.output else sys.stdout
lexemes = LEX.copy()
if args.pattern:
lexemes['assert'] = args.pattern
p = Parse(inf, lexemes)
# write extra verbose asserts
mkdecls(outf, maxwidth=args.maxwidth)
if args.input:
outf.write("#line %d \"%s\"\n" % (1, args.input))
# parse and write out stmt at a time
try:
while True:
outf.write(pstmt(p))
if p.accept('sep'):
outf.write(p.m)
else:
break
except ParseFailure as f:
pass
for i in range(p.off, len(p.tokens)):
outf.write(p.tokens[i][1])
if __name__ == "__main__":
import argparse
parser = argparse.ArgumentParser(
description="Cpp step that increases assert verbosity")
parser.add_argument('input', nargs='?',
help="Input C file after cpp.")
parser.add_argument('-o', '--output', required=True,
help="Output C file.")
parser.add_argument('-p', '--pattern', action='append',
help="Patterns to search for starting an assert statement.")
parser.add_argument('--maxwidth', default=MAXWIDTH, type=int,
help="Maximum number of characters to display for strcmp and memcmp.")
main(parser.parse_args())

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#!/usr/bin/env python2
# This script replaces prefixes of files, and symbols in that file.
# Useful for creating different versions of the codebase that don't
# conflict at compile time.
#
# example:
# $ ./scripts/prefix.py lfs2
import os
import os.path
import re
import glob
import itertools
import tempfile
import shutil
import subprocess
DEFAULT_PREFIX = "lfs"
def subn(from_prefix, to_prefix, name):
name, count1 = re.subn('\\b'+from_prefix, to_prefix, name)
name, count2 = re.subn('\\b'+from_prefix.upper(), to_prefix.upper(), name)
name, count3 = re.subn('\\B-D'+from_prefix.upper(),
'-D'+to_prefix.upper(), name)
return name, count1+count2+count3
def main(from_prefix, to_prefix=None, files=None):
if not to_prefix:
from_prefix, to_prefix = DEFAULT_PREFIX, from_prefix
if not files:
files = subprocess.check_output([
'git', 'ls-tree', '-r', '--name-only', 'HEAD']).split()
for oldname in files:
# Rename any matching file names
newname, namecount = subn(from_prefix, to_prefix, oldname)
if namecount:
subprocess.check_call(['git', 'mv', oldname, newname])
# Rename any prefixes in file
count = 0
with open(newname+'~', 'w') as tempf:
with open(newname) as newf:
for line in newf:
line, n = subn(from_prefix, to_prefix, line)
count += n
tempf.write(line)
shutil.copystat(newname, newname+'~')
os.rename(newname+'~', newname)
subprocess.check_call(['git', 'add', newname])
# Summary
print '%s: %d replacements' % (
'%s -> %s' % (oldname, newname) if namecount else oldname,
count)
if __name__ == "__main__":
import sys
sys.exit(main(*sys.argv[1:]))

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fr3092_mcu/components/modules/littlefs/scripts/readblock.py Normal file
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#!/usr/bin/env python3
import subprocess as sp
def main(args):
with open(args.disk, 'rb') as f:
f.seek(args.block * args.block_size)
block = (f.read(args.block_size)
.ljust(args.block_size, b'\xff'))
# what did you expect?
print("%-8s %-s" % ('off', 'data'))
return sp.run(['xxd', '-g1', '-'], input=block).returncode
if __name__ == "__main__":
import argparse
import sys
parser = argparse.ArgumentParser(
description="Hex dump a specific block in a disk.")
parser.add_argument('disk',
help="File representing the block device.")
parser.add_argument('block_size', type=lambda x: int(x, 0),
help="Size of a block in bytes.")
parser.add_argument('block', type=lambda x: int(x, 0),
help="Address of block to dump.")
sys.exit(main(parser.parse_args()))

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fr3092_mcu/components/modules/littlefs/scripts/readmdir.py Normal file
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#!/usr/bin/env python3
import struct
import binascii
import sys
import itertools as it
TAG_TYPES = {
'splice': (0x700, 0x400),
'create': (0x7ff, 0x401),
'delete': (0x7ff, 0x4ff),
'name': (0x700, 0x000),
'reg': (0x7ff, 0x001),
'dir': (0x7ff, 0x002),
'superblock': (0x7ff, 0x0ff),
'struct': (0x700, 0x200),
'dirstruct': (0x7ff, 0x200),
'ctzstruct': (0x7ff, 0x202),
'inlinestruct': (0x7ff, 0x201),
'userattr': (0x700, 0x300),
'tail': (0x700, 0x600),
'softtail': (0x7ff, 0x600),
'hardtail': (0x7ff, 0x601),
'gstate': (0x700, 0x700),
'movestate': (0x7ff, 0x7ff),
'crc': (0x700, 0x500),
}
class Tag:
def __init__(self, *args):
if len(args) == 1:
self.tag = args[0]
elif len(args) == 3:
if isinstance(args[0], str):
type = TAG_TYPES[args[0]][1]
else:
type = args[0]
if isinstance(args[1], str):
id = int(args[1], 0) if args[1] not in 'x.' else 0x3ff
else:
id = args[1]
if isinstance(args[2], str):
size = int(args[2], str) if args[2] not in 'x.' else 0x3ff
else:
size = args[2]
self.tag = (type << 20) | (id << 10) | size
else:
assert False
@property
def isvalid(self):
return not bool(self.tag & 0x80000000)
@property
def isattr(self):
return not bool(self.tag & 0x40000000)
@property
def iscompactable(self):
return bool(self.tag & 0x20000000)
@property
def isunique(self):
return not bool(self.tag & 0x10000000)
@property
def type(self):
return (self.tag & 0x7ff00000) >> 20
@property
def type1(self):
return (self.tag & 0x70000000) >> 20
@property
def type3(self):
return (self.tag & 0x7ff00000) >> 20
@property
def id(self):
return (self.tag & 0x000ffc00) >> 10
@property
def size(self):
return (self.tag & 0x000003ff) >> 0
@property
def dsize(self):
return 4 + (self.size if self.size != 0x3ff else 0)
@property
def chunk(self):
return self.type & 0xff
@property
def schunk(self):
return struct.unpack('b', struct.pack('B', self.chunk))[0]
def is_(self, type):
return (self.type & TAG_TYPES[type][0]) == TAG_TYPES[type][1]
def mkmask(self):
return Tag(
0x700 if self.isunique else 0x7ff,
0x3ff if self.isattr else 0,
0)
def chid(self, nid):
ntag = Tag(self.type, nid, self.size)
if hasattr(self, 'off'): ntag.off = self.off
if hasattr(self, 'data'): ntag.data = self.data
if hasattr(self, 'crc'): ntag.crc = self.crc
return ntag
def typerepr(self):
if self.is_('crc') and getattr(self, 'crc', 0xffffffff) != 0xffffffff:
return 'crc (bad)'
reverse_types = {v: k for k, v in TAG_TYPES.items()}
for prefix in range(12):
mask = 0x7ff & ~((1 << prefix)-1)
if (mask, self.type & mask) in reverse_types:
type = reverse_types[mask, self.type & mask]
if prefix > 0:
return '%s %#0*x' % (
type, prefix//4, self.type & ((1 << prefix)-1))
else:
return type
else:
return '%02x' % self.type
def idrepr(self):
return repr(self.id) if self.id != 0x3ff else '.'
def sizerepr(self):
return repr(self.size) if self.size != 0x3ff else 'x'
def __repr__(self):
return 'Tag(%r, %d, %d)' % (self.typerepr(), self.id, self.size)
def __lt__(self, other):
return (self.id, self.type) < (other.id, other.type)
def __bool__(self):
return self.isvalid
def __int__(self):
return self.tag
def __index__(self):
return self.tag
class MetadataPair:
def __init__(self, blocks):
if len(blocks) > 1:
self.pair = [MetadataPair([block]) for block in blocks]
self.pair = sorted(self.pair, reverse=True)
self.data = self.pair[0].data
self.rev = self.pair[0].rev
self.tags = self.pair[0].tags
self.ids = self.pair[0].ids
self.log = self.pair[0].log
self.all_ = self.pair[0].all_
return
self.pair = [self]
self.data = blocks[0]
block = self.data
self.rev, = struct.unpack('<I', block[0:4])
crc = binascii.crc32(block[0:4])
# parse tags
corrupt = False
tag = Tag(0xffffffff)
off = 4
self.log = []
self.all_ = []
while len(block) - off >= 4:
ntag, = struct.unpack('>I', block[off:off+4])
tag = Tag(int(tag) ^ ntag)
tag.off = off + 4
tag.data = block[off+4:off+tag.dsize]
if tag.is_('crc'):
crc = binascii.crc32(block[off:off+4+4], crc)
else:
crc = binascii.crc32(block[off:off+tag.dsize], crc)
tag.crc = crc
off += tag.dsize
self.all_.append(tag)
if tag.is_('crc'):
# is valid commit?
if crc != 0xffffffff:
corrupt = True
if not corrupt:
self.log = self.all_.copy()
# reset tag parsing
crc = 0
tag = Tag(int(tag) ^ ((tag.type & 1) << 31))
# find active ids
self.ids = list(it.takewhile(
lambda id: Tag('name', id, 0) in self,
it.count()))
# find most recent tags
self.tags = []
for tag in self.log:
if tag.is_('crc') or tag.is_('splice'):
continue
elif tag.id == 0x3ff:
if tag in self and self[tag] is tag:
self.tags.append(tag)
else:
# id could have change, I know this is messy and slow
# but it works
for id in self.ids:
ntag = tag.chid(id)
if ntag in self and self[ntag] is tag:
self.tags.append(ntag)
self.tags = sorted(self.tags)
def __bool__(self):
return bool(self.log)
def __lt__(self, other):
# corrupt blocks don't count
if not self or not other:
return bool(other)
# use sequence arithmetic to avoid overflow
return not ((other.rev - self.rev) & 0x80000000)
def __contains__(self, args):
try:
self[args]
return True
except KeyError:
return False
def __getitem__(self, args):
if isinstance(args, tuple):
gmask, gtag = args
else:
gmask, gtag = args.mkmask(), args
gdiff = 0
for tag in reversed(self.log):
if (gmask.id != 0 and tag.is_('splice') and
tag.id <= gtag.id - gdiff):
if tag.is_('create') and tag.id == gtag.id - gdiff:
# creation point
break
gdiff += tag.schunk
if ((int(gmask) & int(tag)) ==
(int(gmask) & int(gtag.chid(gtag.id - gdiff)))):
if tag.size == 0x3ff:
# deleted
break
return tag
raise KeyError(gmask, gtag)
def _dump_tags(self, tags, f=sys.stdout, truncate=True):
f.write("%-8s %-8s %-13s %4s %4s" % (
'off', 'tag', 'type', 'id', 'len'))
if truncate:
f.write(' data (truncated)')
f.write('\n')
for tag in tags:
f.write("%08x: %08x %-13s %4s %4s" % (
tag.off, tag,
tag.typerepr(), tag.idrepr(), tag.sizerepr()))
if truncate:
f.write(" %-23s %-8s\n" % (
' '.join('%02x' % c for c in tag.data[:8]),
''.join(c if c >= ' ' and c <= '~' else '.'
for c in map(chr, tag.data[:8]))))
else:
f.write("\n")
for i in range(0, len(tag.data), 16):
f.write(" %08x: %-47s %-16s\n" % (
tag.off+i,
' '.join('%02x' % c for c in tag.data[i:i+16]),
''.join(c if c >= ' ' and c <= '~' else '.'
for c in map(chr, tag.data[i:i+16]))))
def dump_tags(self, f=sys.stdout, truncate=True):
self._dump_tags(self.tags, f=f, truncate=truncate)
def dump_log(self, f=sys.stdout, truncate=True):
self._dump_tags(self.log, f=f, truncate=truncate)
def dump_all(self, f=sys.stdout, truncate=True):
self._dump_tags(self.all_, f=f, truncate=truncate)
def main(args):
blocks = []
with open(args.disk, 'rb') as f:
for block in [args.block1, args.block2]:
if block is None:
continue
f.seek(block * args.block_size)
blocks.append(f.read(args.block_size)
.ljust(args.block_size, b'\xff'))
# find most recent pair
mdir = MetadataPair(blocks)
try:
mdir.tail = mdir[Tag('tail', 0, 0)]
if mdir.tail.size != 8 or mdir.tail.data == 8*b'\xff':
mdir.tail = None
except KeyError:
mdir.tail = None
print("mdir {%s} rev %d%s%s%s" % (
', '.join('%#x' % b
for b in [args.block1, args.block2]
if b is not None),
mdir.rev,
' (was %s)' % ', '.join('%d' % m.rev for m in mdir.pair[1:])
if len(mdir.pair) > 1 else '',
' (corrupted!)' if not mdir else '',
' -> {%#x, %#x}' % struct.unpack('<II', mdir.tail.data)
if mdir.tail else ''))
if args.all:
mdir.dump_all(truncate=not args.no_truncate)
elif args.log:
mdir.dump_log(truncate=not args.no_truncate)
else:
mdir.dump_tags(truncate=not args.no_truncate)
return 0 if mdir else 1
if __name__ == "__main__":
import argparse
import sys
parser = argparse.ArgumentParser(
description="Dump useful info about metadata pairs in littlefs.")
parser.add_argument('disk',
help="File representing the block device.")
parser.add_argument('block_size', type=lambda x: int(x, 0),
help="Size of a block in bytes.")
parser.add_argument('block1', type=lambda x: int(x, 0),
help="First block address for finding the metadata pair.")
parser.add_argument('block2', nargs='?', type=lambda x: int(x, 0),
help="Second block address for finding the metadata pair.")
parser.add_argument('-l', '--log', action='store_true',
help="Show tags in log.")
parser.add_argument('-a', '--all', action='store_true',
help="Show all tags in log, included tags in corrupted commits.")
parser.add_argument('-T', '--no-truncate', action='store_true',
help="Don't truncate large amounts of data.")
sys.exit(main(parser.parse_args()))

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#!/usr/bin/env python3
import struct
import sys
import json
import io
import itertools as it
from readmdir import Tag, MetadataPair
def main(args):
superblock = None
gstate = b'\0\0\0\0\0\0\0\0\0\0\0\0'
dirs = []
mdirs = []
corrupted = []
cycle = False
with open(args.disk, 'rb') as f:
tail = (args.block1, args.block2)
hard = False
while True:
for m in it.chain((m for d in dirs for m in d), mdirs):
if set(m.blocks) == set(tail):
# cycle detected
cycle = m.blocks
if cycle:
break
# load mdir
data = []
blocks = {}
for block in tail:
f.seek(block * args.block_size)
data.append(f.read(args.block_size)
.ljust(args.block_size, b'\xff'))
blocks[id(data[-1])] = block
mdir = MetadataPair(data)
mdir.blocks = tuple(blocks[id(p.data)] for p in mdir.pair)
# fetch some key metadata as a we scan
try:
mdir.tail = mdir[Tag('tail', 0, 0)]
if mdir.tail.size != 8 or mdir.tail.data == 8*b'\xff':
mdir.tail = None
except KeyError:
mdir.tail = None
# have superblock?
try:
nsuperblock = mdir[
Tag(0x7ff, 0x3ff, 0), Tag('superblock', 0, 0)]
superblock = nsuperblock, mdir[Tag('inlinestruct', 0, 0)]
except KeyError:
pass
# have gstate?
try:
ngstate = mdir[Tag('movestate', 0, 0)]
gstate = bytes((a or 0) ^ (b or 0)
for a,b in it.zip_longest(gstate, ngstate.data))
except KeyError:
pass
# corrupted?
if not mdir:
corrupted.append(mdir)
# add to directories
mdirs.append(mdir)
if mdir.tail is None or not mdir.tail.is_('hardtail'):
dirs.append(mdirs)
mdirs = []
if mdir.tail is None:
break
tail = struct.unpack('<II', mdir.tail.data)
hard = mdir.tail.is_('hardtail')
# find paths
dirtable = {}
for dir in dirs:
dirtable[frozenset(dir[0].blocks)] = dir
pending = [("/", dirs[0])]
while pending:
path, dir = pending.pop(0)
for mdir in dir:
for tag in mdir.tags:
if tag.is_('dir'):
try:
npath = tag.data.decode('utf8')
dirstruct = mdir[Tag('dirstruct', tag.id, 0)]
nblocks = struct.unpack('<II', dirstruct.data)
nmdir = dirtable[frozenset(nblocks)]
pending.append(((path + '/' + npath), nmdir))
except KeyError:
pass
dir[0].path = path.replace('//', '/')
# print littlefs + version info
version = ('?', '?')
if superblock:
version = tuple(reversed(
struct.unpack('<HH', superblock[1].data[0:4].ljust(4, b'\xff'))))
print("%-47s%s" % ("littlefs v%s.%s" % version,
"data (truncated, if it fits)"
if not any([args.no_truncate, args.log, args.all]) else ""))
# print gstate
print("gstate 0x%s" % ''.join('%02x' % c for c in gstate))
tag = Tag(struct.unpack('<I', gstate[0:4].ljust(4, b'\xff'))[0])
blocks = struct.unpack('<II', gstate[4:4+8].ljust(8, b'\xff'))
if tag.size or not tag.isvalid:
print(" orphans >=%d" % max(tag.size, 1))
if tag.type:
print(" move dir {%#x, %#x} id %d" % (
blocks[0], blocks[1], tag.id))
# print mdir info
for i, dir in enumerate(dirs):
print("dir %s" % (json.dumps(dir[0].path)
if hasattr(dir[0], 'path') else '(orphan)'))
for j, mdir in enumerate(dir):
print("mdir {%#x, %#x} rev %d (was %d)%s%s" % (
mdir.blocks[0], mdir.blocks[1], mdir.rev, mdir.pair[1].rev,
' (corrupted!)' if not mdir else '',
' -> {%#x, %#x}' % struct.unpack('<II', mdir.tail.data)
if mdir.tail else ''))
f = io.StringIO()
if args.log:
mdir.dump_log(f, truncate=not args.no_truncate)
elif args.all:
mdir.dump_all(f, truncate=not args.no_truncate)
else:
mdir.dump_tags(f, truncate=not args.no_truncate)
lines = list(filter(None, f.getvalue().split('\n')))
for k, line in enumerate(lines):
print("%s %s" % (
' ' if j == len(dir)-1 else
'v' if k == len(lines)-1 else
'|',
line))
errcode = 0
for mdir in corrupted:
errcode = errcode or 1
print("*** corrupted mdir {%#x, %#x}! ***" % (
mdir.blocks[0], mdir.blocks[1]))
if cycle:
errcode = errcode or 2
print("*** cycle detected {%#x, %#x}! ***" % (
cycle[0], cycle[1]))
return errcode
if __name__ == "__main__":
import argparse
import sys
parser = argparse.ArgumentParser(
description="Dump semantic info about the metadata tree in littlefs")
parser.add_argument('disk',
help="File representing the block device.")
parser.add_argument('block_size', type=lambda x: int(x, 0),
help="Size of a block in bytes.")
parser.add_argument('block1', nargs='?', default=0,
type=lambda x: int(x, 0),
help="Optional first block address for finding the superblock.")
parser.add_argument('block2', nargs='?', default=1,
type=lambda x: int(x, 0),
help="Optional second block address for finding the superblock.")
parser.add_argument('-l', '--log', action='store_true',
help="Show tags in log.")
parser.add_argument('-a', '--all', action='store_true',
help="Show all tags in log, included tags in corrupted commits.")
parser.add_argument('-T', '--no-truncate', action='store_true',
help="Show the full contents of files/attrs/tags.")
sys.exit(main(parser.parse_args()))

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#!/usr/bin/env python3
#
# Script to find stack usage at the function level. Will detect recursion and
# report as infinite stack usage.
#
import os
import glob
import itertools as it
import re
import csv
import collections as co
import math as m
CI_PATHS = ['*.ci']
def collect(paths, **args):
# parse the vcg format
k_pattern = re.compile('([a-z]+)\s*:', re.DOTALL)
v_pattern = re.compile('(?:"(.*?)"|([a-z]+))', re.DOTALL)
def parse_vcg(rest):
def parse_vcg(rest):
node = []
while True:
rest = rest.lstrip()
m = k_pattern.match(rest)
if not m:
return (node, rest)
k, rest = m.group(1), rest[m.end(0):]
rest = rest.lstrip()
if rest.startswith('{'):
v, rest = parse_vcg(rest[1:])
assert rest[0] == '}', "unexpected %r" % rest[0:1]
rest = rest[1:]
node.append((k, v))
else:
m = v_pattern.match(rest)
assert m, "unexpected %r" % rest[0:1]
v, rest = m.group(1) or m.group(2), rest[m.end(0):]
node.append((k, v))
node, rest = parse_vcg(rest)
assert rest == '', "unexpected %r" % rest[0:1]
return node
# collect into functions
results = co.defaultdict(lambda: (None, None, 0, set()))
f_pattern = re.compile(
r'([^\\]*)\\n([^:]*)[^\\]*\\n([0-9]+) bytes \((.*)\)')
for path in paths:
with open(path) as f:
vcg = parse_vcg(f.read())
for k, graph in vcg:
if k != 'graph':
continue
for k, info in graph:
if k == 'node':
info = dict(info)
m = f_pattern.match(info['label'])
if m:
function, file, size, type = m.groups()
if not args.get('quiet') and type != 'static':
print('warning: found non-static stack for %s (%s)'
% (function, type))
_, _, _, targets = results[info['title']]
results[info['title']] = (
file, function, int(size), targets)
elif k == 'edge':
info = dict(info)
_, _, _, targets = results[info['sourcename']]
targets.add(info['targetname'])
else:
continue
if not args.get('everything'):
for source, (s_file, s_function, _, _) in list(results.items()):
# discard internal functions
if s_file.startswith('<') or s_file.startswith('/usr/include'):
del results[source]
# find maximum stack size recursively, this requires also detecting cycles
# (in case of recursion)
def find_limit(source, seen=None):
seen = seen or set()
if source not in results:
return 0
_, _, frame, targets = results[source]
limit = 0
for target in targets:
if target in seen:
# found a cycle
return float('inf')
limit_ = find_limit(target, seen | {target})
limit = max(limit, limit_)
return frame + limit
def find_deps(targets):
deps = set()
for target in targets:
if target in results:
t_file, t_function, _, _ = results[target]
deps.add((t_file, t_function))
return deps
# flatten into a list
flat_results = []
for source, (s_file, s_function, frame, targets) in results.items():
limit = find_limit(source)
deps = find_deps(targets)
flat_results.append((s_file, s_function, frame, limit, deps))
return flat_results
def main(**args):
def openio(path, mode='r'):
if path == '-':
if 'r' in mode:
return os.fdopen(os.dup(sys.stdin.fileno()), 'r')
else:
return os.fdopen(os.dup(sys.stdout.fileno()), 'w')
else:
return open(path, mode)
# find sizes
if not args.get('use', None):
# find .ci files
paths = []
for path in args['ci_paths']:
if os.path.isdir(path):
path = path + '/*.ci'
for path in glob.glob(path):
paths.append(path)
if not paths:
print('no .ci files found in %r?' % args['ci_paths'])
sys.exit(-1)
results = collect(paths, **args)
else:
with openio(args['use']) as f:
r = csv.DictReader(f)
results = [
( result['file'],
result['name'],
int(result['stack_frame']),
float(result['stack_limit']), # note limit can be inf
set())
for result in r
if result.get('stack_frame') not in {None, ''}
if result.get('stack_limit') not in {None, ''}]
total_frame = 0
total_limit = 0
for _, _, frame, limit, _ in results:
total_frame += frame
total_limit = max(total_limit, limit)
# find previous results?
if args.get('diff'):
try:
with openio(args['diff']) as f:
r = csv.DictReader(f)
prev_results = [
( result['file'],
result['name'],
int(result['stack_frame']),
float(result['stack_limit']),
set())
for result in r
if result.get('stack_frame') not in {None, ''}
if result.get('stack_limit') not in {None, ''}]
except FileNotFoundError:
prev_results = []
prev_total_frame = 0
prev_total_limit = 0
for _, _, frame, limit, _ in prev_results:
prev_total_frame += frame
prev_total_limit = max(prev_total_limit, limit)
# write results to CSV
if args.get('output'):
merged_results = co.defaultdict(lambda: {})
other_fields = []
# merge?
if args.get('merge'):
try:
with openio(args['merge']) as f:
r = csv.DictReader(f)
for result in r:
file = result.pop('file', '')
func = result.pop('name', '')
result.pop('stack_frame', None)
result.pop('stack_limit', None)
merged_results[(file, func)] = result
other_fields = result.keys()
except FileNotFoundError:
pass
for file, func, frame, limit, _ in results:
merged_results[(file, func)]['stack_frame'] = frame
merged_results[(file, func)]['stack_limit'] = limit
with openio(args['output'], 'w') as f:
w = csv.DictWriter(f, ['file', 'name', *other_fields, 'stack_frame', 'stack_limit'])
w.writeheader()
for (file, func), result in sorted(merged_results.items()):
w.writerow({'file': file, 'name': func, **result})
# print results
def dedup_entries(results, by='name'):
entries = co.defaultdict(lambda: (0, 0, set()))
for file, func, frame, limit, deps in results:
entry = (file if by == 'file' else func)
entry_frame, entry_limit, entry_deps = entries[entry]
entries[entry] = (
entry_frame + frame,
max(entry_limit, limit),
entry_deps | {file if by == 'file' else func
for file, func in deps})
return entries
def diff_entries(olds, news):
diff = co.defaultdict(lambda: (None, None, None, None, 0, 0, 0, set()))
for name, (new_frame, new_limit, deps) in news.items():
diff[name] = (
None, None,
new_frame, new_limit,
new_frame, new_limit,
1.0,
deps)
for name, (old_frame, old_limit, _) in olds.items():
_, _, new_frame, new_limit, _, _, _, deps = diff[name]
diff[name] = (
old_frame, old_limit,
new_frame, new_limit,
(new_frame or 0) - (old_frame or 0),
0 if m.isinf(new_limit or 0) and m.isinf(old_limit or 0)
else (new_limit or 0) - (old_limit or 0),
0.0 if m.isinf(new_limit or 0) and m.isinf(old_limit or 0)
else +float('inf') if m.isinf(new_limit or 0)
else -float('inf') if m.isinf(old_limit or 0)
else +0.0 if not old_limit and not new_limit
else +1.0 if not old_limit
else ((new_limit or 0) - (old_limit or 0))/(old_limit or 0),
deps)
return diff
def sorted_entries(entries):
if args.get('limit_sort'):
return sorted(entries, key=lambda x: (-x[1][1], x))
elif args.get('reverse_limit_sort'):
return sorted(entries, key=lambda x: (+x[1][1], x))
elif args.get('frame_sort'):
return sorted(entries, key=lambda x: (-x[1][0], x))
elif args.get('reverse_frame_sort'):
return sorted(entries, key=lambda x: (+x[1][0], x))
else:
return sorted(entries)
def sorted_diff_entries(entries):
if args.get('limit_sort'):
return sorted(entries, key=lambda x: (-(x[1][3] or 0), x))
elif args.get('reverse_limit_sort'):
return sorted(entries, key=lambda x: (+(x[1][3] or 0), x))
elif args.get('frame_sort'):
return sorted(entries, key=lambda x: (-(x[1][2] or 0), x))
elif args.get('reverse_frame_sort'):
return sorted(entries, key=lambda x: (+(x[1][2] or 0), x))
else:
return sorted(entries, key=lambda x: (-x[1][6], x))
def print_header(by=''):
if not args.get('diff'):
print('%-36s %7s %7s' % (by, 'frame', 'limit'))
else:
print('%-36s %15s %15s %15s' % (by, 'old', 'new', 'diff'))
def print_entry(name, frame, limit):
print("%-36s %7d %7s" % (name,
frame, '∞' if m.isinf(limit) else int(limit)))
def print_diff_entry(name,
old_frame, old_limit,
new_frame, new_limit,
diff_frame, diff_limit,
ratio):
print('%-36s %7s %7s %7s %7s %+7d %7s%s' % (name,
old_frame if old_frame is not None else "-",
('∞' if m.isinf(old_limit) else int(old_limit))
if old_limit is not None else "-",
new_frame if new_frame is not None else "-",
('∞' if m.isinf(new_limit) else int(new_limit))
if new_limit is not None else "-",
diff_frame,
('+∞' if diff_limit > 0 and m.isinf(diff_limit)
else '-∞' if diff_limit < 0 and m.isinf(diff_limit)
else '%+d' % diff_limit),
'' if not ratio
else ' (+∞%)' if ratio > 0 and m.isinf(ratio)
else ' (-∞%)' if ratio < 0 and m.isinf(ratio)
else ' (%+.1f%%)' % (100*ratio)))
def print_entries(by='name'):
# build optional tree of dependencies
def print_deps(entries, depth, print,
filter=lambda _: True,
prefixes=('', '', '', '')):
entries = entries if isinstance(entries, list) else list(entries)
filtered_entries = [(name, entry)
for name, entry in entries
if filter(name)]
for i, (name, entry) in enumerate(filtered_entries):
last = (i == len(filtered_entries)-1)
print(prefixes[0+last] + name, entry)
if depth > 0:
deps = entry[-1]
print_deps(entries, depth-1, print,
lambda name: name in deps,
( prefixes[2+last] + "|-> ",
prefixes[2+last] + "'-> ",
prefixes[2+last] + "| ",
prefixes[2+last] + " "))
entries = dedup_entries(results, by=by)
if not args.get('diff'):
print_header(by=by)
print_deps(
sorted_entries(entries.items()),
args.get('depth') or 0,
lambda name, entry: print_entry(name, *entry[:-1]))
else:
prev_entries = dedup_entries(prev_results, by=by)
diff = diff_entries(prev_entries, entries)
print_header(by='%s (%d added, %d removed)' % (by,
sum(1 for _, old, _, _, _, _, _, _ in diff.values() if old is None),
sum(1 for _, _, _, new, _, _, _, _ in diff.values() if new is None)))
print_deps(
filter(
lambda x: x[1][6] or args.get('all'),
sorted_diff_entries(diff.items())),
args.get('depth') or 0,
lambda name, entry: print_diff_entry(name, *entry[:-1]))
def print_totals():
if not args.get('diff'):
print_entry('TOTAL', total_frame, total_limit)
else:
diff_frame = total_frame - prev_total_frame
diff_limit = (
0 if m.isinf(total_limit or 0) and m.isinf(prev_total_limit or 0)
else (total_limit or 0) - (prev_total_limit or 0))
ratio = (
0.0 if m.isinf(total_limit or 0) and m.isinf(prev_total_limit or 0)
else +float('inf') if m.isinf(total_limit or 0)
else -float('inf') if m.isinf(prev_total_limit or 0)
else 0.0 if not prev_total_limit and not total_limit
else 1.0 if not prev_total_limit
else ((total_limit or 0) - (prev_total_limit or 0))/(prev_total_limit or 0))
print_diff_entry('TOTAL',
prev_total_frame, prev_total_limit,
total_frame, total_limit,
diff_frame, diff_limit,
ratio)
if args.get('quiet'):
pass
elif args.get('summary'):
print_header()
print_totals()
elif args.get('files'):
print_entries(by='file')
print_totals()
else:
print_entries(by='name')
print_totals()
if __name__ == "__main__":
import argparse
import sys
parser = argparse.ArgumentParser(
description="Find stack usage at the function level.")
parser.add_argument('ci_paths', nargs='*', default=CI_PATHS,
help="Description of where to find *.ci files. May be a directory \
or a list of paths. Defaults to %r." % CI_PATHS)
parser.add_argument('-v', '--verbose', action='store_true',
help="Output commands that run behind the scenes.")
parser.add_argument('-q', '--quiet', action='store_true',
help="Don't show anything, useful with -o.")
parser.add_argument('-o', '--output',
help="Specify CSV file to store results.")
parser.add_argument('-u', '--use',
help="Don't parse callgraph files, instead use this CSV file.")
parser.add_argument('-d', '--diff',
help="Specify CSV file to diff against.")
parser.add_argument('-m', '--merge',
help="Merge with an existing CSV file when writing to output.")
parser.add_argument('-a', '--all', action='store_true',
help="Show all functions, not just the ones that changed.")
parser.add_argument('-A', '--everything', action='store_true',
help="Include builtin and libc specific symbols.")
parser.add_argument('-s', '--limit-sort', action='store_true',
help="Sort by stack limit.")
parser.add_argument('-S', '--reverse-limit-sort', action='store_true',
help="Sort by stack limit, but backwards.")
parser.add_argument('--frame-sort', action='store_true',
help="Sort by stack frame size.")
parser.add_argument('--reverse-frame-sort', action='store_true',
help="Sort by stack frame size, but backwards.")
parser.add_argument('-L', '--depth', default=0, type=lambda x: int(x, 0),
nargs='?', const=float('inf'),
help="Depth of dependencies to show.")
parser.add_argument('-F', '--files', action='store_true',
help="Show file-level calls.")
parser.add_argument('-Y', '--summary', action='store_true',
help="Only show the total stack size.")
parser.add_argument('--build-dir',
help="Specify the relative build directory. Used to map object files \
to the correct source files.")
sys.exit(main(**vars(parser.parse_args())))

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#!/usr/bin/env python3
#
# Script to find struct sizes.
#
import os
import glob
import itertools as it
import subprocess as sp
import shlex
import re
import csv
import collections as co
OBJ_PATHS = ['*.o']
def collect(paths, **args):
decl_pattern = re.compile(
'^\s+(?P<no>[0-9]+)'
'\s+(?P<dir>[0-9]+)'
'\s+.*'
'\s+(?P<file>[^\s]+)$')
struct_pattern = re.compile(
'^(?:.*DW_TAG_(?P<tag>[a-z_]+).*'
'|^.*DW_AT_name.*:\s*(?P<name>[^:\s]+)\s*'
'|^.*DW_AT_decl_file.*:\s*(?P<decl>[0-9]+)\s*'
'|^.*DW_AT_byte_size.*:\s*(?P<size>[0-9]+)\s*)$')
results = co.defaultdict(lambda: 0)
for path in paths:
# find decl, we want to filter by structs in .h files
decls = {}
# note objdump-tool may contain extra args
cmd = args['objdump_tool'] + ['--dwarf=rawline', path]
if args.get('verbose'):
print(' '.join(shlex.quote(c) for c in cmd))
proc = sp.Popen(cmd,
stdout=sp.PIPE,
stderr=sp.PIPE if not args.get('verbose') else None,
universal_newlines=True,
errors='replace')
for line in proc.stdout:
# find file numbers
m = decl_pattern.match(line)
if m:
decls[int(m.group('no'))] = m.group('file')
proc.wait()
if proc.returncode != 0:
if not args.get('verbose'):
for line in proc.stderr:
sys.stdout.write(line)
sys.exit(-1)
# collect structs as we parse dwarf info
found = False
name = None
decl = None
size = None
# note objdump-tool may contain extra args
cmd = args['objdump_tool'] + ['--dwarf=info', path]
if args.get('verbose'):
print(' '.join(shlex.quote(c) for c in cmd))
proc = sp.Popen(cmd,
stdout=sp.PIPE,
stderr=sp.PIPE if not args.get('verbose') else None,
universal_newlines=True,
errors='replace')
for line in proc.stdout:
# state machine here to find structs
m = struct_pattern.match(line)
if m:
if m.group('tag'):
if (name is not None
and decl is not None
and size is not None):
decl = decls.get(decl, '?')
results[(decl, name)] = size
found = (m.group('tag') == 'structure_type')
name = None
decl = None
size = None
elif found and m.group('name'):
name = m.group('name')
elif found and name and m.group('decl'):
decl = int(m.group('decl'))
elif found and name and m.group('size'):
size = int(m.group('size'))
proc.wait()
if proc.returncode != 0:
if not args.get('verbose'):
for line in proc.stderr:
sys.stdout.write(line)
sys.exit(-1)
flat_results = []
for (file, struct), size in results.items():
# map to source files
if args.get('build_dir'):
file = re.sub('%s/*' % re.escape(args['build_dir']), '', file)
# only include structs declared in header files in the current
# directory, ignore internal-only # structs (these are represented
# in other measurements)
if not args.get('everything'):
if not file.endswith('.h'):
continue
# replace .o with .c, different scripts report .o/.c, we need to
# choose one if we want to deduplicate csv files
file = re.sub('\.o$', '.c', file)
flat_results.append((file, struct, size))
return flat_results
def main(**args):
def openio(path, mode='r'):
if path == '-':
if 'r' in mode:
return os.fdopen(os.dup(sys.stdin.fileno()), 'r')
else:
return os.fdopen(os.dup(sys.stdout.fileno()), 'w')
else:
return open(path, mode)
# find sizes
if not args.get('use', None):
# find .o files
paths = []
for path in args['obj_paths']:
if os.path.isdir(path):
path = path + '/*.o'
for path in glob.glob(path):
paths.append(path)
if not paths:
print('no .obj files found in %r?' % args['obj_paths'])
sys.exit(-1)
results = collect(paths, **args)
else:
with openio(args['use']) as f:
r = csv.DictReader(f)
results = [
( result['file'],
result['name'],
int(result['struct_size']))
for result in r
if result.get('struct_size') not in {None, ''}]
total = 0
for _, _, size in results:
total += size
# find previous results?
if args.get('diff'):
try:
with openio(args['diff']) as f:
r = csv.DictReader(f)
prev_results = [
( result['file'],
result['name'],
int(result['struct_size']))
for result in r
if result.get('struct_size') not in {None, ''}]
except FileNotFoundError:
prev_results = []
prev_total = 0
for _, _, size in prev_results:
prev_total += size
# write results to CSV
if args.get('output'):
merged_results = co.defaultdict(lambda: {})
other_fields = []
# merge?
if args.get('merge'):
try:
with openio(args['merge']) as f:
r = csv.DictReader(f)
for result in r:
file = result.pop('file', '')
struct = result.pop('name', '')
result.pop('struct_size', None)
merged_results[(file, struct)] = result
other_fields = result.keys()
except FileNotFoundError:
pass
for file, struct, size in results:
merged_results[(file, struct)]['struct_size'] = size
with openio(args['output'], 'w') as f:
w = csv.DictWriter(f, ['file', 'name', *other_fields, 'struct_size'])
w.writeheader()
for (file, struct), result in sorted(merged_results.items()):
w.writerow({'file': file, 'name': struct, **result})
# print results
def dedup_entries(results, by='name'):
entries = co.defaultdict(lambda: 0)
for file, struct, size in results:
entry = (file if by == 'file' else struct)
entries[entry] += size
return entries
def diff_entries(olds, news):
diff = co.defaultdict(lambda: (0, 0, 0, 0))
for name, new in news.items():
diff[name] = (0, new, new, 1.0)
for name, old in olds.items():
_, new, _, _ = diff[name]
diff[name] = (old, new, new-old, (new-old)/old if old else 1.0)
return diff
def sorted_entries(entries):
if args.get('size_sort'):
return sorted(entries, key=lambda x: (-x[1], x))
elif args.get('reverse_size_sort'):
return sorted(entries, key=lambda x: (+x[1], x))
else:
return sorted(entries)
def sorted_diff_entries(entries):
if args.get('size_sort'):
return sorted(entries, key=lambda x: (-x[1][1], x))
elif args.get('reverse_size_sort'):
return sorted(entries, key=lambda x: (+x[1][1], x))
else:
return sorted(entries, key=lambda x: (-x[1][3], x))
def print_header(by=''):
if not args.get('diff'):
print('%-36s %7s' % (by, 'size'))
else:
print('%-36s %7s %7s %7s' % (by, 'old', 'new', 'diff'))
def print_entry(name, size):
print("%-36s %7d" % (name, size))
def print_diff_entry(name, old, new, diff, ratio):
print("%-36s %7s %7s %+7d%s" % (name,
old or "-",
new or "-",
diff,
' (%+.1f%%)' % (100*ratio) if ratio else ''))
def print_entries(by='name'):
entries = dedup_entries(results, by=by)
if not args.get('diff'):
print_header(by=by)
for name, size in sorted_entries(entries.items()):
print_entry(name, size)
else:
prev_entries = dedup_entries(prev_results, by=by)
diff = diff_entries(prev_entries, entries)
print_header(by='%s (%d added, %d removed)' % (by,
sum(1 for old, _, _, _ in diff.values() if not old),
sum(1 for _, new, _, _ in diff.values() if not new)))
for name, (old, new, diff, ratio) in sorted_diff_entries(
diff.items()):
if ratio or args.get('all'):
print_diff_entry(name, old, new, diff, ratio)
def print_totals():
if not args.get('diff'):
print_entry('TOTAL', total)
else:
ratio = (0.0 if not prev_total and not total
else 1.0 if not prev_total
else (total-prev_total)/prev_total)
print_diff_entry('TOTAL',
prev_total, total,
total-prev_total,
ratio)
if args.get('quiet'):
pass
elif args.get('summary'):
print_header()
print_totals()
elif args.get('files'):
print_entries(by='file')
print_totals()
else:
print_entries(by='name')
print_totals()
if __name__ == "__main__":
import argparse
import sys
parser = argparse.ArgumentParser(
description="Find struct sizes.")
parser.add_argument('obj_paths', nargs='*', default=OBJ_PATHS,
help="Description of where to find *.o files. May be a directory \
or a list of paths. Defaults to %r." % OBJ_PATHS)
parser.add_argument('-v', '--verbose', action='store_true',
help="Output commands that run behind the scenes.")
parser.add_argument('-q', '--quiet', action='store_true',
help="Don't show anything, useful with -o.")
parser.add_argument('-o', '--output',
help="Specify CSV file to store results.")
parser.add_argument('-u', '--use',
help="Don't compile and find struct sizes, instead use this CSV file.")
parser.add_argument('-d', '--diff',
help="Specify CSV file to diff struct size against.")
parser.add_argument('-m', '--merge',
help="Merge with an existing CSV file when writing to output.")
parser.add_argument('-a', '--all', action='store_true',
help="Show all functions, not just the ones that changed.")
parser.add_argument('-A', '--everything', action='store_true',
help="Include builtin and libc specific symbols.")
parser.add_argument('-s', '--size-sort', action='store_true',
help="Sort by size.")
parser.add_argument('-S', '--reverse-size-sort', action='store_true',
help="Sort by size, but backwards.")
parser.add_argument('-F', '--files', action='store_true',
help="Show file-level struct sizes.")
parser.add_argument('-Y', '--summary', action='store_true',
help="Only show the total struct size.")
parser.add_argument('--objdump-tool', default=['objdump'], type=lambda x: x.split(),
help="Path to the objdump tool to use.")
parser.add_argument('--build-dir',
help="Specify the relative build directory. Used to map object files \
to the correct source files.")
sys.exit(main(**vars(parser.parse_args())))

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#!/usr/bin/env python3
#
# Script to summarize the outputs of other scripts. Operates on CSV files.
#
import functools as ft
import collections as co
import os
import csv
import re
import math as m
# displayable fields
Field = co.namedtuple('Field', 'name,parse,acc,key,fmt,repr,null,ratio')
FIELDS = [
# name, parse, accumulate, fmt, print, null
Field('code',
lambda r: int(r['code_size']),
sum,
lambda r: r,
'%7s',
lambda r: r,
'-',
lambda old, new: (new-old)/old),
Field('data',
lambda r: int(r['data_size']),
sum,
lambda r: r,
'%7s',
lambda r: r,
'-',
lambda old, new: (new-old)/old),
Field('stack',
lambda r: float(r['stack_limit']),
max,
lambda r: r,
'%7s',
lambda r: '∞' if m.isinf(r) else int(r),
'-',
lambda old, new: (new-old)/old),
Field('structs',
lambda r: int(r['struct_size']),
sum,
lambda r: r,
'%8s',
lambda r: r,
'-',
lambda old, new: (new-old)/old),
Field('coverage',
lambda r: (int(r['coverage_hits']), int(r['coverage_count'])),
lambda rs: ft.reduce(lambda a, b: (a[0]+b[0], a[1]+b[1]), rs),
lambda r: r[0]/r[1],
'%19s',
lambda r: '%11s %7s' % ('%d/%d' % (r[0], r[1]), '%.1f%%' % (100*r[0]/r[1])),
'%11s %7s' % ('-', '-'),
lambda old, new: ((new[0]/new[1]) - (old[0]/old[1])))
]
def main(**args):
def openio(path, mode='r'):
if path == '-':
if 'r' in mode:
return os.fdopen(os.dup(sys.stdin.fileno()), 'r')
else:
return os.fdopen(os.dup(sys.stdout.fileno()), 'w')
else:
return open(path, mode)
# find results
results = co.defaultdict(lambda: {})
for path in args.get('csv_paths', '-'):
try:
with openio(path) as f:
r = csv.DictReader(f)
for result in r:
file = result.pop('file', '')
name = result.pop('name', '')
prev = results[(file, name)]
for field in FIELDS:
try:
r = field.parse(result)
if field.name in prev:
results[(file, name)][field.name] = field.acc(
[prev[field.name], r])
else:
results[(file, name)][field.name] = r
except (KeyError, ValueError):
pass
except FileNotFoundError:
pass
# find fields
if args.get('all_fields'):
fields = FIELDS
elif args.get('fields') is not None:
fields_dict = {field.name: field for field in FIELDS}
fields = [fields_dict[f] for f in args['fields']]
else:
fields = []
for field in FIELDS:
if any(field.name in result for result in results.values()):
fields.append(field)
# find total for every field
total = {}
for result in results.values():
for field in fields:
if field.name in result and field.name in total:
total[field.name] = field.acc(
[total[field.name], result[field.name]])
elif field.name in result:
total[field.name] = result[field.name]
# find previous results?
if args.get('diff'):
prev_results = co.defaultdict(lambda: {})
try:
with openio(args['diff']) as f:
r = csv.DictReader(f)
for result in r:
file = result.pop('file', '')
name = result.pop('name', '')
prev = prev_results[(file, name)]
for field in FIELDS:
try:
r = field.parse(result)
if field.name in prev:
prev_results[(file, name)][field.name] = field.acc(
[prev[field.name], r])
else:
prev_results[(file, name)][field.name] = r
except (KeyError, ValueError):
pass
except FileNotFoundError:
pass
prev_total = {}
for result in prev_results.values():
for field in fields:
if field.name in result and field.name in prev_total:
prev_total[field.name] = field.acc(
[prev_total[field.name], result[field.name]])
elif field.name in result:
prev_total[field.name] = result[field.name]
# print results
def dedup_entries(results, by='name'):
entries = co.defaultdict(lambda: {})
for (file, func), result in results.items():
entry = (file if by == 'file' else func)
prev = entries[entry]
for field in fields:
if field.name in result and field.name in prev:
entries[entry][field.name] = field.acc(
[prev[field.name], result[field.name]])
elif field.name in result:
entries[entry][field.name] = result[field.name]
return entries
def sorted_entries(entries):
if args.get('sort') is not None:
field = {field.name: field for field in FIELDS}[args['sort']]
return sorted(entries, key=lambda x: (
-(field.key(x[1][field.name])) if field.name in x[1] else -1, x))
elif args.get('reverse_sort') is not None:
field = {field.name: field for field in FIELDS}[args['reverse_sort']]
return sorted(entries, key=lambda x: (
+(field.key(x[1][field.name])) if field.name in x[1] else -1, x))
else:
return sorted(entries)
def print_header(by=''):
if not args.get('diff'):
print('%-36s' % by, end='')
for field in fields:
print((' '+field.fmt) % field.name, end='')
print()
else:
print('%-36s' % by, end='')
for field in fields:
print((' '+field.fmt) % field.name, end='')
print(' %-9s' % '', end='')
print()
def print_entry(name, result):
print('%-36s' % name, end='')
for field in fields:
r = result.get(field.name)
if r is not None:
print((' '+field.fmt) % field.repr(r), end='')
else:
print((' '+field.fmt) % '-', end='')
print()
def print_diff_entry(name, old, new):
print('%-36s' % name, end='')
for field in fields:
n = new.get(field.name)
if n is not None:
print((' '+field.fmt) % field.repr(n), end='')
else:
print((' '+field.fmt) % '-', end='')
o = old.get(field.name)
ratio = (
0.0 if m.isinf(o or 0) and m.isinf(n or 0)
else +float('inf') if m.isinf(n or 0)
else -float('inf') if m.isinf(o or 0)
else 0.0 if not o and not n
else +1.0 if not o
else -1.0 if not n
else field.ratio(o, n))
print(' %-9s' % (
'' if not ratio
else '(+∞%)' if ratio > 0 and m.isinf(ratio)
else '(-∞%)' if ratio < 0 and m.isinf(ratio)
else '(%+.1f%%)' % (100*ratio)), end='')
print()
def print_entries(by='name'):
entries = dedup_entries(results, by=by)
if not args.get('diff'):
print_header(by=by)
for name, result in sorted_entries(entries.items()):
print_entry(name, result)
else:
prev_entries = dedup_entries(prev_results, by=by)
print_header(by='%s (%d added, %d removed)' % (by,
sum(1 for name in entries if name not in prev_entries),
sum(1 for name in prev_entries if name not in entries)))
for name, result in sorted_entries(entries.items()):
if args.get('all') or result != prev_entries.get(name, {}):
print_diff_entry(name, prev_entries.get(name, {}), result)
def print_totals():
if not args.get('diff'):
print_entry('TOTAL', total)
else:
print_diff_entry('TOTAL', prev_total, total)
if args.get('summary'):
print_header()
print_totals()
elif args.get('files'):
print_entries(by='file')
print_totals()
else:
print_entries(by='name')
print_totals()
if __name__ == "__main__":
import argparse
import sys
parser = argparse.ArgumentParser(
description="Summarize measurements")
parser.add_argument('csv_paths', nargs='*', default='-',
help="Description of where to find *.csv files. May be a directory \
or list of paths. *.csv files will be merged to show the total \
coverage.")
parser.add_argument('-d', '--diff',
help="Specify CSV file to diff against.")
parser.add_argument('-a', '--all', action='store_true',
help="Show all objects, not just the ones that changed.")
parser.add_argument('-e', '--all-fields', action='store_true',
help="Show all fields, even those with no results.")
parser.add_argument('-f', '--fields', type=lambda x: re.split('\s*,\s*', x),
help="Comma separated list of fields to print, by default all fields \
that are found in the CSV files are printed.")
parser.add_argument('-s', '--sort',
help="Sort by this field.")
parser.add_argument('-S', '--reverse-sort',
help="Sort by this field, but backwards.")
parser.add_argument('-F', '--files', action='store_true',
help="Show file-level calls.")
parser.add_argument('-Y', '--summary', action='store_true',
help="Only show the totals.")
sys.exit(main(**vars(parser.parse_args())))

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#!/usr/bin/env python3
# This script manages littlefs tests, which are configured with
# .toml files stored in the tests directory.
#
import toml
import glob
import re
import os
import io
import itertools as it
import collections.abc as abc
import subprocess as sp
import base64
import sys
import copy
import shlex
import pty
import errno
import signal
TEST_PATHS = 'tests'
RULES = """
# add block devices to sources
TESTSRC ?= $(SRC) $(wildcard bd/*.c)
define FLATTEN
%(path)s%%$(subst /,.,$(target)): $(target)
./scripts/explode_asserts.py $$< -o $$@
endef
$(foreach target,$(TESTSRC),$(eval $(FLATTEN)))
-include %(path)s*.d
.SECONDARY:
%(path)s.test: %(path)s.test.o \\
$(foreach t,$(subst /,.,$(TESTSRC:.c=.o)),%(path)s.$t)
$(CC) $(CFLAGS) $^ $(LFLAGS) -o $@
# needed in case builddir is different
%(path)s%%.o: %(path)s%%.c
$(CC) -c -MMD $(CFLAGS) $< -o $@
"""
COVERAGE_RULES = """
%(path)s.test: override CFLAGS += -fprofile-arcs -ftest-coverage
# delete lingering coverage
%(path)s.test: | %(path)s.info.clean
.PHONY: %(path)s.info.clean
%(path)s.info.clean:
rm -f %(path)s*.gcda
# accumulate coverage info
.PHONY: %(path)s.info
%(path)s.info:
$(strip $(LCOV) -c \\
$(addprefix -d ,$(wildcard %(path)s*.gcda)) \\
--rc 'geninfo_adjust_src_path=$(shell pwd)' \\
-o $@)
$(LCOV) -e $@ $(addprefix /,$(SRC)) -o $@
ifdef COVERAGETARGET
$(strip $(LCOV) -a $@ \\
$(addprefix -a ,$(wildcard $(COVERAGETARGET))) \\
-o $(COVERAGETARGET))
endif
"""
GLOBALS = """
//////////////// AUTOGENERATED TEST ////////////////
#include "lfs.h"
#include "bd/lfs_testbd.h"
#include <stdio.h>
extern const char *lfs_testbd_path;
extern uint32_t lfs_testbd_cycles;
"""
DEFINES = {
'LFS_READ_SIZE': 16,
'LFS_PROG_SIZE': 'LFS_READ_SIZE',
'LFS_BLOCK_SIZE': 512,
'LFS_BLOCK_COUNT': 1024,
'LFS_BLOCK_CYCLES': -1,
'LFS_CACHE_SIZE': '(64 % LFS_PROG_SIZE == 0 ? 64 : LFS_PROG_SIZE)',
'LFS_LOOKAHEAD_SIZE': 16,
'LFS_ERASE_VALUE': 0xff,
'LFS_ERASE_CYCLES': 0,
'LFS_BADBLOCK_BEHAVIOR': 'LFS_TESTBD_BADBLOCK_PROGERROR',
}
PROLOGUE = """
// prologue
__attribute__((unused)) lfs_t lfs;
__attribute__((unused)) lfs_testbd_t bd;
__attribute__((unused)) lfs_file_t file;
__attribute__((unused)) lfs_dir_t dir;
__attribute__((unused)) struct lfs_info info;
__attribute__((unused)) char path[1024];
__attribute__((unused)) uint8_t buffer[1024];
__attribute__((unused)) lfs_size_t size;
__attribute__((unused)) int err;
__attribute__((unused)) const struct lfs_config cfg = {
.context = &bd,
.read = lfs_testbd_read,
.prog = lfs_testbd_prog,
.erase = lfs_testbd_erase,
.sync = lfs_testbd_sync,
.read_size = LFS_READ_SIZE,
.prog_size = LFS_PROG_SIZE,
.block_size = LFS_BLOCK_SIZE,
.block_count = LFS_BLOCK_COUNT,
.block_cycles = LFS_BLOCK_CYCLES,
.cache_size = LFS_CACHE_SIZE,
.lookahead_size = LFS_LOOKAHEAD_SIZE,
};
__attribute__((unused)) const struct lfs_testbd_config bdcfg = {
.erase_value = LFS_ERASE_VALUE,
.erase_cycles = LFS_ERASE_CYCLES,
.badblock_behavior = LFS_BADBLOCK_BEHAVIOR,
.power_cycles = lfs_testbd_cycles,
};
lfs_testbd_createcfg(&cfg, lfs_testbd_path, &bdcfg) => 0;
"""
EPILOGUE = """
// epilogue
lfs_testbd_destroy(&cfg) => 0;
"""
PASS = '\033[32m✓\033[0m'
FAIL = '\033[31m✗\033[0m'
class TestFailure(Exception):
def __init__(self, case, returncode=None, stdout=None, assert_=None):
self.case = case
self.returncode = returncode
self.stdout = stdout
self.assert_ = assert_
class TestCase:
def __init__(self, config, filter=filter,
suite=None, caseno=None, lineno=None, **_):
self.config = config
self.filter = filter
self.suite = suite
self.caseno = caseno
self.lineno = lineno
self.code = config['code']
self.code_lineno = config['code_lineno']
self.defines = config.get('define', {})
self.if_ = config.get('if', None)
self.in_ = config.get('in', None)
self.result = None
def __str__(self):
if hasattr(self, 'permno'):
if any(k not in self.case.defines for k in self.defines):
return '%s#%d#%d (%s)' % (
self.suite.name, self.caseno, self.permno, ', '.join(
'%s=%s' % (k, v) for k, v in self.defines.items()
if k not in self.case.defines))
else:
return '%s#%d#%d' % (
self.suite.name, self.caseno, self.permno)
else:
return '%s#%d' % (
self.suite.name, self.caseno)
def permute(self, class_=None, defines={}, permno=None, **_):
ncase = (class_ or type(self))(self.config)
for k, v in self.__dict__.items():
setattr(ncase, k, v)
ncase.case = self
ncase.perms = [ncase]
ncase.permno = permno
ncase.defines = defines
return ncase
def build(self, f, **_):
# prologue
for k, v in sorted(self.defines.items()):
if k not in self.suite.defines:
f.write('#define %s %s\n' % (k, v))
f.write('void test_case%d(%s) {' % (self.caseno, ','.join(
'\n'+8*' '+'__attribute__((unused)) intmax_t %s' % k
for k in sorted(self.perms[0].defines)
if k not in self.defines)))
f.write(PROLOGUE)
f.write('\n')
f.write(4*' '+'// test case %d\n' % self.caseno)
f.write(4*' '+'#line %d "%s"\n' % (self.code_lineno, self.suite.path))
# test case goes here
f.write(self.code)
# epilogue
f.write(EPILOGUE)
f.write('}\n')
for k, v in sorted(self.defines.items()):
if k not in self.suite.defines:
f.write('#undef %s\n' % k)
def shouldtest(self, **args):
if (self.filter is not None and
len(self.filter) >= 1 and
self.filter[0] != self.caseno):
return False
elif (self.filter is not None and
len(self.filter) >= 2 and
self.filter[1] != self.permno):
return False
elif args.get('no_internal') and self.in_ is not None:
return False
elif self.if_ is not None:
if_ = self.if_
while True:
for k, v in sorted(self.defines.items(),
key=lambda x: len(x[0]), reverse=True):
if k in if_:
if_ = if_.replace(k, '(%s)' % v)
break
else:
break
if_ = (
re.sub('(\&\&|\?)', ' and ',
re.sub('(\|\||:)', ' or ',
re.sub('!(?!=)', ' not ', if_))))
return eval(if_)
else:
return True
def test(self, exec=[], persist=False, cycles=None,
gdb=False, failure=None, disk=None, **args):
# build command
cmd = exec + ['./%s.test' % self.suite.path,
repr(self.caseno), repr(self.permno)]
# persist disk or keep in RAM for speed?
if persist:
if not disk:
disk = self.suite.path + '.disk'
if persist != 'noerase':
try:
with open(disk, 'w') as f:
f.truncate(0)
if args.get('verbose'):
print('truncate --size=0', disk)
except FileNotFoundError:
pass
cmd.append(disk)
# simulate power-loss after n cycles?
if cycles:
cmd.append(str(cycles))
# failed? drop into debugger?
if gdb and failure:
ncmd = ['gdb']
if gdb == 'assert':
ncmd.extend(['-ex', 'r'])
if failure.assert_:
ncmd.extend(['-ex', 'up 2'])
elif gdb == 'main':
ncmd.extend([
'-ex', 'b %s:%d' % (self.suite.path, self.code_lineno),
'-ex', 'r'])
ncmd.extend(['--args'] + cmd)
if args.get('verbose'):
print(' '.join(shlex.quote(c) for c in ncmd))
signal.signal(signal.SIGINT, signal.SIG_IGN)
sys.exit(sp.call(ncmd))
# run test case!
mpty, spty = pty.openpty()
if args.get('verbose'):
print(' '.join(shlex.quote(c) for c in cmd))
proc = sp.Popen(cmd, stdout=spty, stderr=spty)
os.close(spty)
mpty = os.fdopen(mpty, 'r', 1)
stdout = []
assert_ = None
try:
while True:
try:
line = mpty.readline()
except OSError as e:
if e.errno == errno.EIO:
break
raise
if not line:
break;
stdout.append(line)
if args.get('verbose'):
sys.stdout.write(line)
# intercept asserts
m = re.match(
'^{0}([^:]+):(\d+):(?:\d+:)?{0}{1}:{0}(.*)$'
.format('(?:\033\[[\d;]*.| )*', 'assert'),
line)
if m and assert_ is None:
try:
with open(m.group(1)) as f:
lineno = int(m.group(2))
line = (next(it.islice(f, lineno-1, None))
.strip('\n'))
assert_ = {
'path': m.group(1),
'line': line,
'lineno': lineno,
'message': m.group(3)}
except:
pass
except KeyboardInterrupt:
raise TestFailure(self, 1, stdout, None)
proc.wait()
# did we pass?
if proc.returncode != 0:
raise TestFailure(self, proc.returncode, stdout, assert_)
else:
return PASS
class ValgrindTestCase(TestCase):
def __init__(self, config, **args):
self.leaky = config.get('leaky', False)
super().__init__(config, **args)
def shouldtest(self, **args):
return not self.leaky and super().shouldtest(**args)
def test(self, exec=[], **args):
verbose = args.get('verbose')
uninit = (self.defines.get('LFS_ERASE_VALUE', None) == -1)
exec = [
'valgrind',
'--leak-check=full',
] + (['--undef-value-errors=no'] if uninit else []) + [
] + (['--track-origins=yes'] if not uninit else []) + [
'--error-exitcode=4',
'--error-limit=no',
] + (['--num-callers=1'] if not verbose else []) + [
'-q'] + exec
return super().test(exec=exec, **args)
class ReentrantTestCase(TestCase):
def __init__(self, config, **args):
self.reentrant = config.get('reentrant', False)
super().__init__(config, **args)
def shouldtest(self, **args):
return self.reentrant and super().shouldtest(**args)
def test(self, persist=False, gdb=False, failure=None, **args):
for cycles in it.count(1):
# clear disk first?
if cycles == 1 and persist != 'noerase':
persist = 'erase'
else:
persist = 'noerase'
# exact cycle we should drop into debugger?
if gdb and failure and failure.cycleno == cycles:
return super().test(gdb=gdb, persist=persist, cycles=cycles,
failure=failure, **args)
# run tests, but kill the program after prog/erase has
# been hit n cycles. We exit with a special return code if the
# program has not finished, since this isn't a test failure.
try:
return super().test(persist=persist, cycles=cycles, **args)
except TestFailure as nfailure:
if nfailure.returncode == 33:
continue
else:
nfailure.cycleno = cycles
raise
class TestSuite:
def __init__(self, path, classes=[TestCase], defines={},
filter=None, **args):
self.name = os.path.basename(path)
if self.name.endswith('.toml'):
self.name = self.name[:-len('.toml')]
if args.get('build_dir'):
self.toml = path
self.path = args['build_dir'] + '/' + path
else:
self.toml = path
self.path = path
self.classes = classes
self.defines = defines.copy()
self.filter = filter
with open(self.toml) as f:
# load tests
config = toml.load(f)
# find line numbers
f.seek(0)
linenos = []
code_linenos = []
for i, line in enumerate(f):
if re.match(r'\[\[\s*case\s*\]\]', line):
linenos.append(i+1)
if re.match(r'code\s*=\s*(\'\'\'|""")', line):
code_linenos.append(i+2)
code_linenos.reverse()
# grab global config
for k, v in config.get('define', {}).items():
if k not in self.defines:
self.defines[k] = v
self.code = config.get('code', None)
if self.code is not None:
self.code_lineno = code_linenos.pop()
# create initial test cases
self.cases = []
for i, (case, lineno) in enumerate(zip(config['case'], linenos)):
# code lineno?
if 'code' in case:
case['code_lineno'] = code_linenos.pop()
# merge conditions if necessary
if 'if' in config and 'if' in case:
case['if'] = '(%s) && (%s)' % (config['if'], case['if'])
elif 'if' in config:
case['if'] = config['if']
# initialize test case
self.cases.append(TestCase(case, filter=filter,
suite=self, caseno=i+1, lineno=lineno, **args))
def __str__(self):
return self.name
def __lt__(self, other):
return self.name < other.name
def permute(self, **args):
for case in self.cases:
# lets find all parameterized definitions, in one of [args.D,
# suite.defines, case.defines, DEFINES]. Note that each of these
# can be either a dict of defines, or a list of dicts, expressing
# an initial set of permutations.
pending = [{}]
for inits in [self.defines, case.defines, DEFINES]:
if not isinstance(inits, list):
inits = [inits]
npending = []
for init, pinit in it.product(inits, pending):
ninit = pinit.copy()
for k, v in init.items():
if k not in ninit:
try:
ninit[k] = eval(v)
except:
ninit[k] = v
npending.append(ninit)
pending = npending
# expand permutations
pending = list(reversed(pending))
expanded = []
while pending:
perm = pending.pop()
for k, v in sorted(perm.items()):
if not isinstance(v, str) and isinstance(v, abc.Iterable):
for nv in reversed(v):
nperm = perm.copy()
nperm[k] = nv
pending.append(nperm)
break
else:
expanded.append(perm)
# generate permutations
case.perms = []
for i, (class_, defines) in enumerate(
it.product(self.classes, expanded)):
case.perms.append(case.permute(
class_, defines, permno=i+1, **args))
# also track non-unique defines
case.defines = {}
for k, v in case.perms[0].defines.items():
if all(perm.defines[k] == v for perm in case.perms):
case.defines[k] = v
# track all perms and non-unique defines
self.perms = []
for case in self.cases:
self.perms.extend(case.perms)
self.defines = {}
for k, v in self.perms[0].defines.items():
if all(perm.defines.get(k, None) == v for perm in self.perms):
self.defines[k] = v
return self.perms
def build(self, **args):
# build test files
tf = open(self.path + '.test.tc', 'w')
tf.write(GLOBALS)
if self.code is not None:
tf.write('#line %d "%s"\n' % (self.code_lineno, self.path))
tf.write(self.code)
tfs = {None: tf}
for case in self.cases:
if case.in_ not in tfs:
tfs[case.in_] = open(self.path+'.'+
re.sub('(\.c)?$', '.tc', case.in_.replace('/', '.')), 'w')
tfs[case.in_].write('#line 1 "%s"\n' % case.in_)
with open(case.in_) as f:
for line in f:
tfs[case.in_].write(line)
tfs[case.in_].write('\n')
tfs[case.in_].write(GLOBALS)
tfs[case.in_].write('\n')
case.build(tfs[case.in_], **args)
tf.write('\n')
tf.write('const char *lfs_testbd_path;\n')
tf.write('uint32_t lfs_testbd_cycles;\n')
tf.write('int main(int argc, char **argv) {\n')
tf.write(4*' '+'int case_ = (argc > 1) ? atoi(argv[1]) : 0;\n')
tf.write(4*' '+'int perm = (argc > 2) ? atoi(argv[2]) : 0;\n')
tf.write(4*' '+'lfs_testbd_path = (argc > 3) ? argv[3] : NULL;\n')
tf.write(4*' '+'lfs_testbd_cycles = (argc > 4) ? atoi(argv[4]) : 0;\n')
for perm in self.perms:
# test declaration
tf.write(4*' '+'extern void test_case%d(%s);\n' % (
perm.caseno, ', '.join(
'intmax_t %s' % k for k in sorted(perm.defines)
if k not in perm.case.defines)))
# test call
tf.write(4*' '+
'if (argc < 3 || (case_ == %d && perm == %d)) {'
' test_case%d(%s); '
'}\n' % (perm.caseno, perm.permno, perm.caseno, ', '.join(
str(v) for k, v in sorted(perm.defines.items())
if k not in perm.case.defines)))
tf.write('}\n')
for tf in tfs.values():
tf.close()
# write makefiles
with open(self.path + '.mk', 'w') as mk:
mk.write(RULES.replace(4*' ', '\t') % dict(path=self.path))
mk.write('\n')
# add coverage hooks?
if args.get('coverage'):
mk.write(COVERAGE_RULES.replace(4*' ', '\t') % dict(
path=self.path))
mk.write('\n')
# add truly global defines globally
for k, v in sorted(self.defines.items()):
mk.write('%s.test: override CFLAGS += -D%s=%r\n'
% (self.path, k, v))
for path in tfs:
if path is None:
mk.write('%s: %s | %s\n' % (
self.path+'.test.c',
self.toml,
self.path+'.test.tc'))
else:
mk.write('%s: %s %s | %s\n' % (
self.path+'.'+path.replace('/', '.'),
self.toml,
path,
self.path+'.'+re.sub('(\.c)?$', '.tc',
path.replace('/', '.'))))
mk.write('\t./scripts/explode_asserts.py $| -o $@\n')
self.makefile = self.path + '.mk'
self.target = self.path + '.test'
return self.makefile, self.target
def test(self, **args):
# run test suite!
if not args.get('verbose', True):
sys.stdout.write(self.name + ' ')
sys.stdout.flush()
for perm in self.perms:
if not perm.shouldtest(**args):
continue
try:
result = perm.test(**args)
except TestFailure as failure:
perm.result = failure
if not args.get('verbose', True):
sys.stdout.write(FAIL)
sys.stdout.flush()
if not args.get('keep_going'):
if not args.get('verbose', True):
sys.stdout.write('\n')
raise
else:
perm.result = PASS
if not args.get('verbose', True):
sys.stdout.write(PASS)
sys.stdout.flush()
if not args.get('verbose', True):
sys.stdout.write('\n')
def main(**args):
# figure out explicit defines
defines = {}
for define in args['D']:
k, v, *_ = define.split('=', 2) + ['']
defines[k] = v
# and what class of TestCase to run
classes = []
if args.get('normal'):
classes.append(TestCase)
if args.get('reentrant'):
classes.append(ReentrantTestCase)
if args.get('valgrind'):
classes.append(ValgrindTestCase)
if not classes:
classes = [TestCase]
suites = []
for testpath in args['test_paths']:
# optionally specified test case/perm
testpath, *filter = testpath.split('#')
filter = [int(f) for f in filter]
# figure out the suite's toml file
if os.path.isdir(testpath):
testpath = testpath + '/*.toml'
elif os.path.isfile(testpath):
testpath = testpath
elif testpath.endswith('.toml'):
testpath = TEST_PATHS + '/' + testpath
else:
testpath = TEST_PATHS + '/' + testpath + '.toml'
# find tests
for path in glob.glob(testpath):
suites.append(TestSuite(path, classes, defines, filter, **args))
# sort for reproducibility
suites = sorted(suites)
# generate permutations
for suite in suites:
suite.permute(**args)
# build tests in parallel
print('====== building ======')
makefiles = []
targets = []
for suite in suites:
makefile, target = suite.build(**args)
makefiles.append(makefile)
targets.append(target)
cmd = (['make', '-f', 'Makefile'] +
list(it.chain.from_iterable(['-f', m] for m in makefiles)) +
[target for target in targets])
mpty, spty = pty.openpty()
if args.get('verbose'):
print(' '.join(shlex.quote(c) for c in cmd))
proc = sp.Popen(cmd, stdout=spty, stderr=spty)
os.close(spty)
mpty = os.fdopen(mpty, 'r', 1)
stdout = []
while True:
try:
line = mpty.readline()
except OSError as e:
if e.errno == errno.EIO:
break
raise
if not line:
break;
stdout.append(line)
if args.get('verbose'):
sys.stdout.write(line)
# intercept warnings
m = re.match(
'^{0}([^:]+):(\d+):(?:\d+:)?{0}{1}:{0}(.*)$'
.format('(?:\033\[[\d;]*.| )*', 'warning'),
line)
if m and not args.get('verbose'):
try:
with open(m.group(1)) as f:
lineno = int(m.group(2))
line = next(it.islice(f, lineno-1, None)).strip('\n')
sys.stdout.write(
"\033[01m{path}:{lineno}:\033[01;35mwarning:\033[m "
"{message}\n{line}\n\n".format(
path=m.group(1), line=line, lineno=lineno,
message=m.group(3)))
except:
pass
proc.wait()
if proc.returncode != 0:
if not args.get('verbose'):
for line in stdout:
sys.stdout.write(line)
sys.exit(-1)
print('built %d test suites, %d test cases, %d permutations' % (
len(suites),
sum(len(suite.cases) for suite in suites),
sum(len(suite.perms) for suite in suites)))
total = 0
for suite in suites:
for perm in suite.perms:
total += perm.shouldtest(**args)
if total != sum(len(suite.perms) for suite in suites):
print('filtered down to %d permutations' % total)
# only requested to build?
if args.get('build'):
return 0
print('====== testing ======')
try:
for suite in suites:
suite.test(**args)
except TestFailure:
pass
print('====== results ======')
passed = 0
failed = 0
for suite in suites:
for perm in suite.perms:
if perm.result == PASS:
passed += 1
elif isinstance(perm.result, TestFailure):
sys.stdout.write(
"\033[01m{path}:{lineno}:\033[01;31mfailure:\033[m "
"{perm} failed\n".format(
perm=perm, path=perm.suite.path, lineno=perm.lineno,
returncode=perm.result.returncode or 0))
if perm.result.stdout:
if perm.result.assert_:
stdout = perm.result.stdout[:-1]
else:
stdout = perm.result.stdout
for line in stdout[-5:]:
sys.stdout.write(line)
if perm.result.assert_:
sys.stdout.write(
"\033[01m{path}:{lineno}:\033[01;31massert:\033[m "
"{message}\n{line}\n".format(
**perm.result.assert_))
sys.stdout.write('\n')
failed += 1
if args.get('coverage'):
# collect coverage info
# why -j1? lcov doesn't work in parallel because of gcov limitations
cmd = (['make', '-j1', '-f', 'Makefile'] +
list(it.chain.from_iterable(['-f', m] for m in makefiles)) +
(['COVERAGETARGET=%s' % args['coverage']]
if isinstance(args['coverage'], str) else []) +
[suite.path + '.info' for suite in suites
if any(perm.result == PASS for perm in suite.perms)])
if args.get('verbose'):
print(' '.join(shlex.quote(c) for c in cmd))
proc = sp.Popen(cmd,
stdout=sp.PIPE if not args.get('verbose') else None,
stderr=sp.STDOUT if not args.get('verbose') else None,
universal_newlines=True)
stdout = []
for line in proc.stdout:
stdout.append(line)
proc.wait()
if proc.returncode != 0:
if not args.get('verbose'):
for line in stdout:
sys.stdout.write(line)
sys.exit(-1)
if args.get('gdb'):
failure = None
for suite in suites:
for perm in suite.perms:
if isinstance(perm.result, TestFailure):
failure = perm.result
if failure is not None:
print('======= gdb ======')
# drop into gdb
failure.case.test(failure=failure, **args)
sys.exit(0)
print('tests passed %d/%d (%.1f%%)' % (passed, total,
100*(passed/total if total else 1.0)))
print('tests failed %d/%d (%.1f%%)' % (failed, total,
100*(failed/total if total else 1.0)))
return 1 if failed > 0 else 0
if __name__ == "__main__":
import argparse
parser = argparse.ArgumentParser(
description="Run parameterized tests in various configurations.")
parser.add_argument('test_paths', nargs='*', default=[TEST_PATHS],
help="Description of test(s) to run. By default, this is all tests \
found in the \"{0}\" directory. Here, you can specify a different \
directory of tests, a specific file, a suite by name, and even \
specific test cases and permutations. For example \
\"test_dirs#1\" or \"{0}/test_dirs.toml#1#1\".".format(TEST_PATHS))
parser.add_argument('-D', action='append', default=[],
help="Overriding parameter definitions.")
parser.add_argument('-v', '--verbose', action='store_true',
help="Output everything that is happening.")
parser.add_argument('-k', '--keep-going', action='store_true',
help="Run all tests instead of stopping on first error. Useful for CI.")
parser.add_argument('-p', '--persist', choices=['erase', 'noerase'],
nargs='?', const='erase',
help="Store disk image in a file.")
parser.add_argument('-b', '--build', action='store_true',
help="Only build the tests, do not execute.")
parser.add_argument('-g', '--gdb', choices=['init', 'main', 'assert'],
nargs='?', const='assert',
help="Drop into gdb on test failure.")
parser.add_argument('--no-internal', action='store_true',
help="Don't run tests that require internal knowledge.")
parser.add_argument('-n', '--normal', action='store_true',
help="Run tests normally.")
parser.add_argument('-r', '--reentrant', action='store_true',
help="Run reentrant tests with simulated power-loss.")
parser.add_argument('--valgrind', action='store_true',
help="Run non-leaky tests under valgrind to check for memory leaks.")
parser.add_argument('--exec', default=[], type=lambda e: e.split(),
help="Run tests with another executable prefixed on the command line.")
parser.add_argument('--disk',
help="Specify a file to use for persistent/reentrant tests.")
parser.add_argument('--coverage', type=lambda x: x if x else True,
nargs='?', const='',
help="Collect coverage information during testing. This uses lcov/gcov \
to accumulate coverage information into *.info files. May also \
a path to a *.info file to accumulate coverage info into.")
parser.add_argument('--build-dir',
help="Build relative to the specified directory instead of the \
current directory.")
sys.exit(main(**vars(parser.parse_args())))