clang-tidy use only g++ flags

script/clang-tidy

@@ -52,14 +52,9 @@ def clang_options(idedata):
 
     if "zephyr" in triplet:
         omit_flags += (
-            "-fno-printf-return-value",
             "-fno-reorder-functions",
-            "-format-zero-length",
             "-mfp16-format=ieee",
-            "-std=c99",
-            "-fno-defer-pop",
             "--param=min-pagesize=0",
-            "--specs=picolibc.specs",
         )
     else:
         cmd.extend(

script/helpers.py

@@ -194,6 +194,8 @@ CONFIG_NEWLIB_LIBC=y
             for entry in commands:
                 command = entry["command"]
                 cxx_path = command.split()[0]
+                if not cxx_path.endswith("++"):
+                    continue
                 return cxx_path
 
         def get_builtin_include_paths(compiler):
@@ -240,6 +242,9 @@ CONFIG_NEWLIB_LIBC=y
 
             for entry in compile_commands:
                 command = entry["command"]
+                exec = command.split()[0]
+                if exec != cxx_path:
+                    continue
 
                 idedata["includes"]["build"].update(extract_include_paths(command))
                 idedata["defines"].update(extract_defines(command))