ce0c70770d
Also added a command line option to reduce the analysis to a specific directory only. This is useful for local execution for checking updated headers with verbose flag set.
334 lines
15 KiB
Python
334 lines
15 KiB
Python
#!/usr/bin/env python
|
|
#
|
|
# Checks all public headers in IDF in the ci
|
|
#
|
|
# Copyright 2020 Espressif Systems (Shanghai) PTE LTD
|
|
#
|
|
# Licensed under the Apache License, Version 2.0 (the "License");
|
|
# you may not use this file except in compliance with the License.
|
|
# You may obtain a copy of the License at
|
|
#
|
|
# http://www.apache.org/licenses/LICENSE-2.0
|
|
#
|
|
# Unless required by applicable law or agreed to in writing, software
|
|
# distributed under the License is distributed on an "AS IS" BASIS,
|
|
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
# See the License for the specific language governing permissions and
|
|
# limitations under the License.
|
|
#
|
|
|
|
from __future__ import print_function
|
|
from __future__ import unicode_literals
|
|
import re
|
|
import os
|
|
import subprocess
|
|
import json
|
|
import fnmatch
|
|
import argparse
|
|
import queue
|
|
from threading import Thread, Event
|
|
import tempfile
|
|
|
|
|
|
class HeaderFailed(Exception):
|
|
"""Base header failure exeption"""
|
|
pass
|
|
|
|
|
|
class HeaderFailedSdkconfig(HeaderFailed):
|
|
def __str__(self):
|
|
return "Sdkconfig Error"
|
|
|
|
|
|
class HeaderFailedBuildError(HeaderFailed):
|
|
def __str__(self):
|
|
return "Header Build Error"
|
|
|
|
|
|
class HeaderFailedCppGuardMissing(HeaderFailed):
|
|
def __str__(self):
|
|
return "Header Missing C++ Guard"
|
|
|
|
|
|
class HeaderFailedContainsCode(HeaderFailed):
|
|
def __str__(self):
|
|
return "Header Produced non-zero object"
|
|
|
|
|
|
# Creates a temp file and returns both output as a string and a file name
|
|
#
|
|
def exec_cmd_to_temp_file(what, suffix=""):
|
|
out_file = tempfile.NamedTemporaryFile(suffix=suffix, delete=False)
|
|
rc, out, err = exec_cmd(what, out_file)
|
|
with open(out_file.name, "r") as f:
|
|
out = f.read()
|
|
return rc, out, err, out_file.name
|
|
|
|
|
|
def exec_cmd(what, out_file=subprocess.PIPE):
|
|
p = subprocess.Popen(what, stdin=subprocess.PIPE, stdout=out_file, stderr=subprocess.PIPE)
|
|
output, err = p.communicate()
|
|
rc = p.returncode
|
|
output = output.decode('utf-8') if output is not None else None
|
|
err = err.decode('utf-8') if err is not None else None
|
|
return rc, output, err
|
|
|
|
|
|
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)
|
|
|
|
def log(self, message, debug=False):
|
|
if self.verbose or debug:
|
|
print(message)
|
|
|
|
def __init__(self, verbose=False, jobs=1, prefix=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.assembly_nocode = r'^\s*(\.file|\.text|\.ident).*$'
|
|
self.check_threads = []
|
|
|
|
self.job_queue = queue.Queue()
|
|
self.failed_queue = queue.Queue()
|
|
self.terminate = Event()
|
|
|
|
def __enter__(self):
|
|
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, exc_value, traceback):
|
|
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):
|
|
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))
|
|
|
|
def get_failed(self):
|
|
return list(self.failed_queue.queue)
|
|
|
|
def join(self):
|
|
for t in self.check_threads:
|
|
while t.isAlive 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, num):
|
|
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()
|
|
else:
|
|
self.compile_one_header(header)
|
|
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_sdkconfig_issue=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:
|
|
os.unlink(temp_header)
|
|
|
|
def compile_one_header(self, header):
|
|
rc, out, err = 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)
|
|
raise HeaderFailedBuildError()
|
|
|
|
def preprocess_one_header(self, header, num, ignore_sdkconfig_issue=False):
|
|
all_compilation_flags = ["-w", "-P", "-E", "-include", header, self.main_c] + self.include_dir_flags
|
|
if not ignore_sdkconfig_issue:
|
|
# just strip commnets to check for CONFIG_... macros
|
|
rc, out, err = exec_cmd([self.gcc, "-fpreprocessed", "-dD", "-P", "-E", header] + self.include_dir_flags)
|
|
if re.search(self.kconfig_macro, out):
|
|
# enable defined #error if sdkconfig.h not included
|
|
all_compilation_flags.append("-DIDF_CHECK_SDKCONFIG_INCLUDED")
|
|
try:
|
|
# compile with C++, check for errors, outputs for a temp file
|
|
rc, cpp_out, err, cpp_out_file = 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)
|
|
return self.COMPILE_ERR_HDR_FAILED
|
|
# compile with C compiler, outputs to another temp file
|
|
rc, c99_out, 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, ignore_files, only_dir=None):
|
|
idf_path = os.getenv('IDF_PATH')
|
|
project_dir = os.path.join(idf_path, "examples", "get-started", "blink")
|
|
subprocess.check_call(["idf.py", "reconfigure"], cwd=project_dir)
|
|
build_commands_json = os.path.join(project_dir, "build", "compile_commands.json")
|
|
with open(build_commands_json, "r") 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(project_dir, "build", "config"))
|
|
sdkconfig_h = os.path.join(project_dir, "build", "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(project_dir, "build", "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 f in all_include_files:
|
|
rel_path_file = os.path.relpath(f, 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(f))
|
|
continue
|
|
if rel_path_file in ignore_files:
|
|
self.log("{} - file ignored".format(f))
|
|
continue
|
|
files_to_check.append(f)
|
|
# removes duplicates and places headers to a work queue
|
|
for f in set(files_to_check):
|
|
self.job_queue.put(f)
|
|
self.job_queue.put(None) # to indicate the last job
|
|
|
|
|
|
def check_all_headers():
|
|
parser = argparse.ArgumentParser("Public header checker file")
|
|
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") 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)
|
|
exit(1)
|
|
print("No errors found")
|
|
except KeyboardInterrupt:
|
|
print("Keyboard interrupt")
|
|
|
|
|
|
if __name__ == '__main__':
|
|
check_all_headers()
|