run-clang-tools: Add pass through checks and and header-filter arguments

Add a -checks argument to allow the checks passed to the clang-tool to
be set on the command line.

Add a pass through -header-filter option.

Don't run analysis on non-C or CPP files.

Signed-off-by: Ian Rogers <[e-mail]>
Reviewed-by: Nick Desaulniers <[e-mail]>
Cc: Ravi Bangoria <[e-mail]>
Cc: Mark Rutland <[e-mail]>
Cc: Yang Jihong <[e-mail]>
Cc: Peter Zijlstra <[e-mail]>
Cc: Adrian Hunter <[e-mail]>
Cc: Arnaldo Carvalho de Melo <[e-mail]>
Cc: Huacai Chen <[e-mail]>
Cc: Jiri Olsa <[e-mail]>
Cc: Nathan Chancellor <[e-mail]>
Cc: Alexander Shishkin <[e-mail]>
Cc: Kan Liang <[e-mail]>
Cc: [e-mail]
Cc: Ming Wang <[e-mail]>
Cc: Ingo Molnar <[e-mail]>
Cc: Tom Rix <[e-mail]>
Cc: [e-mail]
Cc: [e-mail]
Cc: [e-mail]
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Namhyung Kim <[e-mail]>

scripts/clang-tools/run-clang-tools.py

···
     path_help = "Path to the compilation database to parse"
     parser.add_argument("path", type=str, help=path_help)
 
+    checks_help = "Checks to pass to the analysis"
+    parser.add_argument("-checks", type=str, default=None, help=checks_help)
+    header_filter_help = "Pass the -header-filter value to the tool"
+    parser.add_argument("-header-filter", type=str, default=None, help=header_filter_help)
+
     return parser.parse_args()
 
 
···
 
 def run_analysis(entry):
     # Disable all checks, then re-enable the ones we want
-    checks = []
-    checks.append("-checks=-*")
-    if args.type == "clang-tidy":
-        checks.append("linuxkernel-*")
+    global args
+    checks = None
+    if args.checks:
+        checks = args.checks.split(',')
     else:
-        checks.append("clang-analyzer-*")
-        checks.append("-clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling")
-    p = subprocess.run(["clang-tidy", "-p", args.path, ",".join(checks), entry["file"]],
+        checks = ["-*"]
+        if args.type == "clang-tidy":
+            checks.append("linuxkernel-*")
+        else:
+            checks.append("clang-analyzer-*")
+            checks.append("-clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling")
+    file = entry["file"]
+    if not file.endswith(".c") and not file.endswith(".cpp"):
+        with lock:
+            print(f"Skipping non-C file: '{file}'", file=sys.stderr)
+        return
+    pargs = ["clang-tidy", "-p", args.path, "-checks=" + ",".join(checks)]
+    if args.header_filter:
+        pargs.append("-header-filter=" + args.header_filter)
+    pargs.append(file)
+    p = subprocess.run(pargs,
                        stdout=subprocess.PIPE,
                        stderr=subprocess.STDOUT,
                        cwd=entry["directory"])