auto import from //depot/cupcake/@135843
diff --git a/libc/kernel/tools/find_users.py b/libc/kernel/tools/find_users.py
new file mode 100755
index 0000000..5ee308c
--- /dev/null
+++ b/libc/kernel/tools/find_users.py
@@ -0,0 +1,63 @@
+#!/usr/bin/env python
+#
+# this program is used to find source code that includes linux kernel headers directly
+# (e.g. with #include <linux/...> or #include <asm/...>)
+#
+# then it lists
+
+import sys, cpp, glob, os, re, getopt
+import kernel
+from utils import *
+from defaults import *
+
+
+def usage():
+ print """\
+ usage: find_users.py [-v] (file|directory|@listfile)+
+
+ this program is used to scan a list of files or directories for
+ sources that include kernel headers directly. the program prints
+ the list of said source files when it's done.
+
+ when scanning directories, only files matching the following
+ extension will be searched: .c .cpp .S .h
+
+ use -v to enable verbose output
+"""
+ sys.exit(1)
+
+
+try:
+ optlist, args = getopt.getopt( sys.argv[1:], 'v' )
+except:
+ # unrecognized option
+ print "error: unrecognized option"
+ usage()
+
+for opt, arg in optlist:
+ if opt == '-v':
+ kernel.verboseSearch = 1
+ kernel.verboseFind = 1
+ else:
+ usage()
+
+if len(args) < 1:
+ usage()
+
+# helper function used to walk the user files
+def parse_file(path, parser):
+ parser.parseFile(path)
+
+
+# first, obtain the list of kernel files used by our clients
+# avoid parsing the 'kernel_headers' directory itself since we
+# use this program with the Android source tree by default.
+#
+fparser = kernel.HeaderScanner()
+walk_source_files( args, parse_file, fparser, excludes=["kernel_headers","original"] )
+files = fparser.getFiles()
+
+for f in sorted(files):
+ print f
+
+sys.exit(0)