source: mainline/tools/checkers/clang.py@ 4dd3912

#!/usr/bin/env python
#
# SPDX-FileCopyrightText: 2010 Martin Decky
#
# SPDX-License-Identifier: BSD-3-Clause
#
"""
Wrapper for Clang static analyzer
"""

import sys
import os
import subprocess
import jobfile

jobs = [
        "kernel/kernel.job"
]

def usage(prname):
        "Print usage syntax"
        print(prname + " <ROOT>")

def clang(root, job):
        "Run Clang on a jobfile"

        inname = os.path.join(root, job)

        if (not os.path.isfile(inname)):
                print("Unable to open %s" % inname)
                print("Did you run \"make precheck\" on the source tree?")
                return False

        inf = open(inname, "r")
        records = inf.read().splitlines()
        inf.close()

        for record in records:
                arg = jobfile.parse_arg(record)
                if (not arg):
                        return False

                if (len(arg) < 6):
                        print("Not enough jobfile record arguments")
                        return False

                srcfname = arg[0]
                tgtfname = arg[1]
                tool = arg[2]
                category = arg[3]
                base = arg[4]
                options = arg[5].split()

                srcfqname = os.path.join(base, srcfname)
                if (not os.path.isfile(srcfqname)):
                        print("Source %s not found" % srcfqname)
                        return False

                # Only C files are interesting for us
                if (tool != "cc"):
                        continue

                args = ['clang', '-Qunused-arguments', '--analyze',
                        '-Xanalyzer', '-analyzer-opt-analyze-headers',
                        '-Xanalyzer', '-checker-cfref']
                args.extend(options)
                args.extend(['-o', tgtfname, srcfname])

                cwd = os.getcwd()
                os.chdir(base)
                retval = subprocess.Popen(args).wait()
                os.chdir(cwd)

                if (retval != 0):
                        return False

        return True

def main():
        if (len(sys.argv) < 2):
                usage(sys.argv[0])
                return

        rootdir = os.path.abspath(sys.argv[1])
        config = os.path.join(rootdir, "HelenOS.config")

        if (not os.path.isfile(config)):
                print("%s not found." % config)
                print("Please specify the path to HelenOS build tree root as the first argument.")
                return

        for job in jobs:
                if (not clang(rootdir, job)):
                        print()
                        print("Failed job: %s" % job)
                        return

        print
        print("All jobs passed")

if __name__ == '__main__':
        main()