Squash commits for public release

utils/codeassistant/libkern_libc_compat.py

@@ -0,0 +1,92 @@
+#!/usr/bin/env python
+# The tool checks the compatability of linkern and libc bits/ structs
+
+import sys
+import os
+
+
+def list_of_files_relative(opath):
+    res = []
+
+    def is_file_type(name, ending):
+        if len(name) <= len(ending):
+            return False
+        return (name[-len(ending)-1::] == '.'+ending)
+
+    for path, subdirs, files in os.walk(opath):
+        for name in files:
+            # It runs from out dir, at least it should
+            file = path + "/" + name
+            if is_file_type(file, 'h'):
+                res.append(file[len(opath):])
+    return res
+
+
+def process_file(file, res_map):
+    def accept_line(line):
+        if line.endswith("\n"):
+            line = line[:-1]
+
+        if (len(line) == 0):
+            return False
+
+        block = [
+            "#include",
+            "#ifndef",
+            "#endif",
+            "#define _KERNEL_LIBKERN",
+            "#define _LIBC",
+        ]
+
+        for b in block:
+            if line.startswith(b):
+                return False
+
+        return True
+
+    with open(file) as ofile:
+        for line in ofile:
+            if line.endswith("\n"):
+                line = line[:-1]
+            if accept_line(line):
+                if line in res_map:
+                    res_map[line] += 1
+                else:
+                    res_map[line] = 1
+
+
+def create_map_of_lines(files):
+    res_map = {}
+    for f in files:
+        process_file(f, res_map)
+    return res_map
+
+
+def check_files(pbase, pslave, files):
+    filesbase = [pbase+x for x in files]
+    filesslave = [pslave+x for x in files]
+    libkern_map = create_map_of_lines(filesbase)
+    libc_map = create_map_of_lines(filesslave)
+
+    for i, x in libkern_map.items():
+        if i in libc_map:
+            if x != libc_map[i]:
+                return False
+        else:
+            print("Can't find {0} in LibC".format(i))
+            return False
+
+    return True
+
+
+libkern_files = list_of_files_relative("kernel/include/libkern/bits")
+libc_files = list_of_files_relative("libs/libc/include/bits")
+
+if len(libkern_files) != len(libc_files):
+    print("Note: LibC and LibKern might not be compatible, taking LibKern as base")
+
+if check_files("kernel/include/libkern/bits", "libs/libc/include/bits", libkern_files):
+    print("OK")
+else:
+    print("Failed")
+    exit(1)