kopia lustrzana https://github.com/espressif/esp-idf
392 wiersze
20 KiB
Python
392 wiersze
20 KiB
Python
#!/usr/bin/env python
|
|
#
|
|
# Checks all public headers in IDF in the ci
|
|
#
|
|
# SPDX-FileCopyrightText: 2020-2022 Espressif Systems (Shanghai) CO LTD
|
|
# SPDX-License-Identifier: Apache-2.0
|
|
#
|
|
|
|
from __future__ import print_function, unicode_literals
|
|
|
|
import argparse
|
|
import fnmatch
|
|
import json
|
|
import os
|
|
import queue
|
|
import re
|
|
import subprocess
|
|
import tempfile
|
|
from io import open
|
|
from threading import Event, Thread
|
|
from typing import List, Optional, Set, Tuple, Union
|
|
|
|
|
|
class HeaderFailed(Exception):
|
|
"""Base header failure exeption"""
|
|
pass
|
|
|
|
|
|
class HeaderFailedSdkconfig(HeaderFailed):
|
|
def __str__(self) -> str:
|
|
return 'Sdkconfig Error'
|
|
|
|
|
|
class HeaderFailedBuildError(HeaderFailed):
|
|
def __str__(self) -> str:
|
|
return 'Header Build Error'
|
|
|
|
|
|
class HeaderFailedCppGuardMissing(HeaderFailed):
|
|
def __str__(self) -> str:
|
|
return 'Header Missing C++ Guard'
|
|
|
|
|
|
class HeaderFailedContainsCode(HeaderFailed):
|
|
def __str__(self) -> str:
|
|
return 'Header Produced non-zero object'
|
|
|
|
|
|
class HeaderFailedContainsStaticAssert(HeaderFailed):
|
|
def __str__(self) -> str:
|
|
return 'Header uses _Static_assert or static_assert instead of ESP_STATIC_ASSERT'
|
|
|
|
|
|
# Creates a temp file and returns both output as a string and a file name
|
|
#
|
|
def exec_cmd_to_temp_file(what: List, suffix: str='') -> Tuple[int, str, str, str, str]:
|
|
out_file = tempfile.NamedTemporaryFile(suffix=suffix, delete=False)
|
|
rc, out, err, cmd = exec_cmd(what, out_file)
|
|
with open(out_file.name, 'r', encoding='utf-8') as f:
|
|
out = f.read()
|
|
return rc, out, err, out_file.name, cmd
|
|
|
|
|
|
def exec_cmd(what: List, out_file: Union['tempfile._TemporaryFileWrapper[bytes]', int]=subprocess.PIPE) -> Tuple[int, str, str, str]:
|
|
p = subprocess.Popen(what, stdin=subprocess.PIPE, stdout=out_file, stderr=subprocess.PIPE)
|
|
output_b, err_b = p.communicate()
|
|
rc = p.returncode
|
|
output: str = output_b.decode('utf-8') if output_b is not None else ''
|
|
err: str = err_b.decode('utf-8') if err_b is not None else ''
|
|
return rc, output, err, ' '.join(what)
|
|
|
|
|
|
class PublicHeaderChecker:
|
|
# Intermediate results
|
|
COMPILE_ERR_REF_CONFIG_HDR_FAILED = 1 # -> Cannot compile and failed with injected SDKCONFIG #error (header FAILs)
|
|
COMPILE_ERR_ERROR_MACRO_HDR_OK = 2 # -> Cannot compile, but failed with "#error" directive (header seems OK)
|
|
COMPILE_ERR_HDR_FAILED = 3 # -> Cannot compile with another issue, logged if verbose (header FAILs)
|
|
PREPROC_OUT_ZERO_HDR_OK = 4 # -> Both preprocessors produce zero out (header file is OK)
|
|
PREPROC_OUT_SAME_HRD_FAILED = 5 # -> Both preprocessors produce the same, non-zero output (header file FAILs)
|
|
PREPROC_OUT_DIFFERENT_WITH_EXT_C_HDR_OK = 6 # -> Both preprocessors produce different, non-zero output with extern "C" (header seems OK)
|
|
PREPROC_OUT_DIFFERENT_NO_EXT_C_HDR_FAILED = 7 # -> Both preprocessors produce different, non-zero output without extern "C" (header fails)
|
|
HEADER_CONTAINS_STATIC_ASSERT = 8 # -> Header file contains _Static_assert instead of static_assert or ESP_STATIC_ASSERT
|
|
|
|
def log(self, message: str, debug: bool=False) -> None:
|
|
if self.verbose or debug:
|
|
print(message)
|
|
|
|
def __init__(self, verbose: bool=False, jobs: int=1, prefix: Optional[str]=None) -> None:
|
|
self.gcc = '{}gcc'.format(prefix)
|
|
self.gpp = '{}g++'.format(prefix)
|
|
self.verbose = verbose
|
|
self.jobs = jobs
|
|
self.prefix = prefix
|
|
self.extern_c = re.compile(r'extern "C"')
|
|
self.error_macro = re.compile(r'#error')
|
|
self.error_orphan_kconfig = re.compile(r'#error CONFIG_VARS_USED_WHILE_SDKCONFIG_NOT_INCLUDED')
|
|
self.kconfig_macro = re.compile(r'\bCONFIG_[A-Z0-9_]+')
|
|
self.static_assert = re.compile(r'(_Static_assert|static_assert)')
|
|
self.defines_assert = re.compile(r'#define[ \t]+ESP_STATIC_ASSERT')
|
|
self.auto_soc_header = re.compile(r'components/soc/esp[a-z0-9_]+/include(?:/rev[0-9]+)?/(soc|modem)/[a-zA-Z0-9_]+.h')
|
|
self.assembly_nocode = r'^\s*(\.file|\.text|\.ident|\.option|\.attribute).*$'
|
|
self.check_threads: List[Thread] = []
|
|
|
|
self.job_queue: queue.Queue = queue.Queue()
|
|
self.failed_queue: queue.Queue = queue.Queue()
|
|
self.terminate = Event()
|
|
|
|
def __enter__(self) -> 'PublicHeaderChecker':
|
|
for i in range(self.jobs):
|
|
t = Thread(target=self.check_headers, args=(i, ))
|
|
self.check_threads.append(t)
|
|
t.start()
|
|
return self
|
|
|
|
def __exit__(self, exc_type: str, exc_value: str, traceback: str) -> None:
|
|
self.terminate.set()
|
|
for t in self.check_threads:
|
|
t.join()
|
|
|
|
# thread function process incoming header file from a queue
|
|
def check_headers(self, num: int) -> None:
|
|
while not self.terminate.is_set():
|
|
if not self.job_queue.empty():
|
|
task = self.job_queue.get()
|
|
if task is None:
|
|
self.terminate.set()
|
|
else:
|
|
try:
|
|
self.check_one_header(task, num)
|
|
except HeaderFailed as e:
|
|
self.failed_queue.put('{}: Failed! {}'.format(task, e))
|
|
except Exception as e:
|
|
# Makes sure any unexpected exceptions causes the program to terminate
|
|
self.failed_queue.put('{}: Failed! {}'.format(task, e))
|
|
self.terminate.set()
|
|
raise
|
|
|
|
def get_failed(self) -> List:
|
|
return list(self.failed_queue.queue)
|
|
|
|
def join(self) -> None:
|
|
for t in self.check_threads:
|
|
while t.is_alive() and not self.terminate.is_set():
|
|
t.join(1) # joins with timeout to respond to keyboard interrupt
|
|
|
|
# Checks one header calling:
|
|
# - preprocess_one_header() to test and compare preprocessor outputs
|
|
# - check_no_code() to test if header contains some executable code
|
|
# Procedure
|
|
# 1) Preprocess the include file with C preprocessor and with CPP preprocessor
|
|
# - Pass the test if the preprocessor outputs are the same and whitespaces only (#define only header)
|
|
# - Fail the test if the preprocessor outputs are the same (but with some code)
|
|
# - If outputs different, continue with 2)
|
|
# 2) Strip out all include directives to generate "temp.h"
|
|
# 3) Preprocess the temp.h the same way in (1)
|
|
# - Pass the test if the preprocessor outputs are the same and whitespaces only (#include only header)
|
|
# - Fail the test if the preprocessor outputs are the same (but with some code)
|
|
# - If outputs different, pass the test
|
|
# 4) If header passed the steps 1) and 3) test that it produced zero assembly code
|
|
def check_one_header(self, header: str, num: int) -> None:
|
|
res = self.preprocess_one_header(header, num)
|
|
if res == self.COMPILE_ERR_REF_CONFIG_HDR_FAILED:
|
|
raise HeaderFailedSdkconfig()
|
|
elif res == self.COMPILE_ERR_ERROR_MACRO_HDR_OK:
|
|
return self.compile_one_header(header)
|
|
elif res == self.COMPILE_ERR_HDR_FAILED:
|
|
raise HeaderFailedBuildError()
|
|
elif res == self.PREPROC_OUT_ZERO_HDR_OK:
|
|
return self.compile_one_header(header)
|
|
elif res == self.PREPROC_OUT_SAME_HRD_FAILED:
|
|
raise HeaderFailedCppGuardMissing()
|
|
elif res == self.HEADER_CONTAINS_STATIC_ASSERT:
|
|
raise HeaderFailedContainsStaticAssert()
|
|
else:
|
|
self.compile_one_header(header)
|
|
temp_header = None
|
|
try:
|
|
_, _, _, temp_header, _ = exec_cmd_to_temp_file(['sed', '/#include/d; /#error/d', header], suffix='.h')
|
|
res = self.preprocess_one_header(temp_header, num, ignore_common_issues=True)
|
|
if res == self.PREPROC_OUT_SAME_HRD_FAILED:
|
|
raise HeaderFailedCppGuardMissing()
|
|
elif res == self.PREPROC_OUT_DIFFERENT_NO_EXT_C_HDR_FAILED:
|
|
raise HeaderFailedCppGuardMissing()
|
|
finally:
|
|
if temp_header:
|
|
os.unlink(temp_header)
|
|
|
|
def compile_one_header(self, header: str) -> None:
|
|
rc, out, err, cmd = exec_cmd([self.gcc, '-S', '-o-', '-include', header, self.main_c] + self.include_dir_flags)
|
|
if rc == 0:
|
|
if not re.sub(self.assembly_nocode, '', out, flags=re.M).isspace():
|
|
raise HeaderFailedContainsCode()
|
|
return # Header OK: produced zero code
|
|
self.log('{}: FAILED: compilation issue'.format(header), True)
|
|
self.log(err, True)
|
|
self.log('\nCompilation command failed:\n{}\n'.format(cmd), True)
|
|
raise HeaderFailedBuildError()
|
|
|
|
def preprocess_one_header(self, header: str, num: int, ignore_common_issues: bool=False) -> int:
|
|
all_compilation_flags = ['-w', '-P', '-E', '-DESP_PLATFORM', '-include', header, self.main_c] + self.include_dir_flags
|
|
# just strip comments to check for CONFIG_... macros or static asserts
|
|
rc, out, err, _ = exec_cmd([self.gcc, '-fpreprocessed', '-dD', '-P', '-E', header] + self.include_dir_flags)
|
|
if not ignore_common_issues: # We ignore issues on sdkconfig and static asserts, as we're looking at "preprocessed output"
|
|
if re.search(self.kconfig_macro, out):
|
|
# enable defined #error if sdkconfig.h not included
|
|
all_compilation_flags.append('-DIDF_CHECK_SDKCONFIG_INCLUDED')
|
|
# If the file contain _Static_assert or static_assert, make sure it does't not define ESP_STATIC_ASSERT and that it
|
|
# is not an automatically generated soc header file
|
|
grp = re.search(self.static_assert, out)
|
|
# Normalize the potential A//B, A/./B, A/../A, from the name
|
|
normalized_path = os.path.normpath(header)
|
|
if grp and not re.search(self.defines_assert, out) and not re.search(self.auto_soc_header, normalized_path):
|
|
self.log('{}: FAILED: contains {}. Please use ESP_STATIC_ASSERT'.format(header, grp.group(1)), True)
|
|
return self.HEADER_CONTAINS_STATIC_ASSERT
|
|
try:
|
|
# compile with C++, check for errors, outputs for a temp file
|
|
rc, cpp_out, err, cpp_out_file, cmd = exec_cmd_to_temp_file([self.gpp, '--std=c++17'] + all_compilation_flags)
|
|
if rc != 0:
|
|
if re.search(self.error_macro, err):
|
|
if re.search(self.error_orphan_kconfig, err):
|
|
self.log('{}: CONFIG_VARS_USED_WHILE_SDKCONFIG_NOT_INCLUDED'.format(header), True)
|
|
return self.COMPILE_ERR_REF_CONFIG_HDR_FAILED
|
|
self.log('{}: Error directive failure: OK'.format(header))
|
|
return self.COMPILE_ERR_ERROR_MACRO_HDR_OK
|
|
self.log('{}: FAILED: compilation issue'.format(header), True)
|
|
self.log(err, True)
|
|
self.log('\nCompilation command failed:\n{}\n'.format(cmd), True)
|
|
return self.COMPILE_ERR_HDR_FAILED
|
|
# compile with C compiler, outputs to another temp file
|
|
rc, _, err, c99_out_file, _ = exec_cmd_to_temp_file([self.gcc, '--std=c99'] + all_compilation_flags)
|
|
if rc != 0:
|
|
self.log('{} FAILED should never happen'.format(header))
|
|
return self.COMPILE_ERR_HDR_FAILED
|
|
# diff the two outputs
|
|
rc, diff, err, _ = exec_cmd(['diff', c99_out_file, cpp_out_file])
|
|
if not diff or diff.isspace():
|
|
if not cpp_out or cpp_out.isspace():
|
|
self.log('{} The same, but empty out - OK'.format(header))
|
|
return self.PREPROC_OUT_ZERO_HDR_OK
|
|
self.log('{} FAILED C and C++ preprocessor output is the same!'.format(header), True)
|
|
return self.PREPROC_OUT_SAME_HRD_FAILED
|
|
if re.search(self.extern_c, diff):
|
|
self.log('{} extern C present - OK'.format(header))
|
|
return self.PREPROC_OUT_DIFFERENT_WITH_EXT_C_HDR_OK
|
|
self.log('{} Different but no extern C - FAILED'.format(header), True)
|
|
return self.PREPROC_OUT_DIFFERENT_NO_EXT_C_HDR_FAILED
|
|
finally:
|
|
os.unlink(cpp_out_file)
|
|
try:
|
|
os.unlink(c99_out_file)
|
|
except Exception:
|
|
pass
|
|
|
|
# Get compilation data from an example to list all public header files
|
|
def list_public_headers(self, ignore_dirs: List, ignore_files: Union[List, Set], only_dir: str=None) -> None:
|
|
idf_path = os.getenv('IDF_PATH')
|
|
if idf_path is None:
|
|
raise RuntimeError("Environment variable 'IDF_PATH' wasn't set.")
|
|
project_dir = os.path.join(idf_path, 'examples', 'get-started', 'blink')
|
|
build_dir = tempfile.mkdtemp()
|
|
sdkconfig = os.path.join(build_dir, 'sdkconfig')
|
|
try:
|
|
os.unlink(os.path.join(project_dir, 'sdkconfig'))
|
|
except FileNotFoundError:
|
|
pass
|
|
subprocess.check_call(['idf.py', '-B', build_dir, f'-DSDKCONFIG={sdkconfig}', 'reconfigure'], cwd=project_dir)
|
|
build_commands_json = os.path.join(build_dir, 'compile_commands.json')
|
|
with open(build_commands_json, 'r', encoding='utf-8') as f:
|
|
build_command = json.load(f)[0]['command'].split()
|
|
include_dir_flags = []
|
|
include_dirs = []
|
|
# process compilation flags (includes and defines)
|
|
for item in build_command:
|
|
if item.startswith('-I'):
|
|
include_dir_flags.append(item)
|
|
if 'components' in item:
|
|
include_dirs.append(item[2:]) # Removing the leading "-I"
|
|
if item.startswith('-D'):
|
|
include_dir_flags.append(item.replace('\\','')) # removes escaped quotes, eg: -DMBEDTLS_CONFIG_FILE=\\\"mbedtls/esp_config.h\\\"
|
|
include_dir_flags.append('-I' + os.path.join(build_dir, 'config'))
|
|
include_dir_flags.append('-DCI_HEADER_CHECK')
|
|
sdkconfig_h = os.path.join(build_dir, 'config', 'sdkconfig.h')
|
|
# prepares a main_c file for easier sdkconfig checks and avoid compilers warning when compiling headers directly
|
|
with open(sdkconfig_h, 'a') as f:
|
|
f.write('#define IDF_SDKCONFIG_INCLUDED')
|
|
main_c = os.path.join(build_dir, 'compile.c')
|
|
with open(main_c, 'w') as f:
|
|
f.write('#if defined(IDF_CHECK_SDKCONFIG_INCLUDED) && ! defined(IDF_SDKCONFIG_INCLUDED)\n'
|
|
'#error CONFIG_VARS_USED_WHILE_SDKCONFIG_NOT_INCLUDED\n'
|
|
'#endif')
|
|
# processes public include dirs, removing ignored files
|
|
all_include_files = []
|
|
files_to_check = []
|
|
for d in include_dirs:
|
|
if only_dir is not None and not os.path.relpath(d, idf_path).startswith(only_dir):
|
|
self.log('{} - directory ignored (not in "{}")'.format(d, only_dir))
|
|
continue
|
|
if os.path.relpath(d, idf_path).startswith(tuple(ignore_dirs)):
|
|
self.log('{} - directory ignored'.format(d))
|
|
continue
|
|
for root, dirnames, filenames in os.walk(d):
|
|
for filename in fnmatch.filter(filenames, '*.h'):
|
|
all_include_files.append(os.path.join(root, filename))
|
|
self.main_c = main_c
|
|
self.include_dir_flags = include_dir_flags
|
|
ignore_files = set(ignore_files)
|
|
# processes public include files, removing ignored files
|
|
for file_name in all_include_files:
|
|
rel_path_file = os.path.relpath(file_name, idf_path)
|
|
if any([os.path.commonprefix([d, rel_path_file]) == d for d in ignore_dirs]):
|
|
self.log('{} - file ignored (inside ignore dir)'.format(file_name))
|
|
continue
|
|
if rel_path_file in ignore_files:
|
|
self.log('{} - file ignored'.format(file_name))
|
|
continue
|
|
files_to_check.append(file_name)
|
|
# removes duplicates and places headers to a work queue
|
|
for file_name in set(files_to_check):
|
|
self.job_queue.put(file_name)
|
|
self.job_queue.put(None) # to indicate the last job
|
|
|
|
|
|
def check_all_headers() -> None:
|
|
parser = argparse.ArgumentParser('Public header checker file', formatter_class=argparse.RawDescriptionHelpFormatter, epilog='''\
|
|
Tips for fixing failures reported by this script
|
|
------------------------------------------------
|
|
This checker validates all public headers to detect these types of issues:
|
|
1) "Sdkconfig Error": Using SDK config macros without including "sdkconfig.h"
|
|
* Check if the failing include file or any other included file uses "CONFIG_..." prefixed macros
|
|
2) "Header Build Error": Header itself is not compilable (missing includes, macros, types)
|
|
* Check that all referenced macros, types are available (defined or included)
|
|
* Check that all included header files are available (included in paths)
|
|
* Check for possible compilation issues
|
|
* Try to compile only the offending header file
|
|
3) "Header Missing C++ Guard": Preprocessing the header by C and C++ should produce different output
|
|
* Check if the "#ifdef __cplusplus" header sentinels are present
|
|
4) "Header Produced non-zero object": Header contains some object, a definition
|
|
* Check if no definition is present in the offending header file
|
|
5) "Header contains _Static_assert or static_assert": Makes the use of _Static_assert or static_assert
|
|
functions instead of using ESP_STATIC_ASSERT macro
|
|
|
|
Notes:
|
|
* The script validates *all* header files (recursively) in public folders for all components.
|
|
* The script locates include paths from running a default build of "examples/get-started/blink'
|
|
* The script does not support any other targets than esp32
|
|
|
|
General tips:
|
|
* Use "-d" argument to make the script check only the offending header file
|
|
* Use "-v" argument to produce more verbose output
|
|
* Copy, paste and execute the compilation commands to reproduce build errors (script prints out
|
|
the entire compilation command line with absolute paths)
|
|
''')
|
|
parser.add_argument('--verbose', '-v', help='enables verbose mode', action='store_true')
|
|
parser.add_argument('--jobs', '-j', help='number of jobs to run checker', default=1, type=int)
|
|
parser.add_argument('--prefix', '-p', help='compiler prefix', default='xtensa-esp32-elf-', type=str)
|
|
parser.add_argument('--exclude-file', '-e', help='exception file', default='check_public_headers_exceptions.txt', type=str)
|
|
parser.add_argument('--only-dir', '-d', help='reduce the analysis to this directory only', default=None, type=str)
|
|
args = parser.parse_args()
|
|
|
|
# process excluded files and dirs
|
|
exclude_file = os.path.join(os.path.dirname(__file__), args.exclude_file)
|
|
with open(exclude_file, 'r', encoding='utf-8') as f:
|
|
lines = [line.rstrip() for line in f]
|
|
ignore_files = []
|
|
ignore_dirs = []
|
|
for line in lines:
|
|
if not line or line.isspace() or line.startswith('#'):
|
|
continue
|
|
if os.path.isdir(line):
|
|
ignore_dirs.append(line)
|
|
else:
|
|
ignore_files.append(line)
|
|
|
|
# start header check
|
|
with PublicHeaderChecker(args.verbose, args.jobs, args.prefix) as header_check:
|
|
header_check.list_public_headers(ignore_dirs, ignore_files, only_dir=args.only_dir)
|
|
try:
|
|
header_check.join()
|
|
failures = header_check.get_failed()
|
|
if len(failures) > 0:
|
|
for failed in failures:
|
|
print(failed)
|
|
print(parser.epilog)
|
|
exit(1)
|
|
print('No errors found')
|
|
except KeyboardInterrupt:
|
|
print('Keyboard interrupt')
|
|
|
|
|
|
if __name__ == '__main__':
|
|
check_all_headers()
|