--- a/projects/compiler-rt/lib/hwasan/scripts/hwasan_symbolize	(original)

+++ b/projects/compiler-rt/lib/hwasan/scripts/hwasan_symbolize	(refactored)

@@ -11,5 +11,7 @@

 #

 #===------------------------------------------------------------------------===#

+from __future__ import print_function

+

 import glob

 import os

 import re

@@ -42,14 +44,14 @@

     pass

   def __write(self, s):

-    print >>self.__pipe.stdin, s

+    print(s, file=self.__pipe.stdin)

     if self.__log:

-      print >>sys.stderr, ("#>>  |%s|" % (s,))

+      print(("#>>  |%s|" % (s,)), file=sys.stderr)

   def __read(self):

     s = self.__pipe.stdout.readline().rstrip()

     if self.__log:

-      print >>sys.stderr, ("# << |%s|" % (s,))

+      print(("# << |%s|" % (s,)), file=sys.stderr)

     if s == '':

       raise Symbolizer.__EOF

     return s

@@ -75,7 +77,7 @@

       if os.path.exists(full_path):

         return full_path

     if name not in self.__warnings:

-      print >>sys.stderr, "Could not find symbols for", name

+      print("Could not find symbols for", name, file=sys.stderr)

       self.__warnings.add(name)

     return None

@@ -128,16 +130,16 @@

     frames = list(symbolizer.iter_call_stack(binary, addr))

     if len(frames) > 0:

-      print "%s#%s%s%s in %s" % (match.group(1).encode('utf-8'), match.group(2).encode('utf-8'),

-                                 match.group(3).encode('utf-8'), frames[0][0], frames[0][1])

+      print("%s#%s%s%s in %s" % (match.group(1).encode('utf-8'), match.group(2).encode('utf-8'),

+                                 match.group(3).encode('utf-8'), frames[0][0], frames[0][1]))

       for i in range(1, len(frames)):

         space1 = ' ' * match.end(1)

         space2 = ' ' * (match.start(4) - match.end(1) - 2)

-        print "%s->%s%s in %s" % (space1, space2, frames[i][0], frames[i][1])

+        print("%s->%s%s in %s" % (space1, space2, frames[i][0], frames[i][1]))

     else:

-      print line.rstrip().encode('utf-8')

+      print(line.rstrip().encode('utf-8'))

   else:

-    print line.rstrip().encode('utf-8')

+    print(line.rstrip().encode('utf-8'))

 def save_access_address(line):

   global last_access_address, last_access_tag

@@ -177,10 +179,10 @@

       tag_offset = local[5]

       if not ignore_tags and (tag_offset is None or base_tag ^ tag_offset != last_access_tag):

         continue

-      print ''

-      print 'Potentially referenced stack object:'

-      print '  %d bytes inside variable "%s" in stack frame of function "%s"' % (obj_offset, local[2], local[0])

-      print '  at %s' % (local[1],)

+      print('')

+      print('Potentially referenced stack object:')

+      print('  %d bytes inside variable "%s" in stack frame of function "%s"' % (obj_offset, local[2], local[0]))

+      print('  at %s' % (local[1],))

     return True

   return False

@@ -203,7 +205,7 @@

 for p in binary_prefixes:

   if not os.path.isdir(p):

-    print >>sys.stderr, "Symbols path does not exist or is not a directory:", p

+    print("Symbols path does not exist or is not a directory:", p, file=sys.stderr)

     sys.exit(1)

 # Source location.

@@ -261,18 +263,18 @@

       break

 if not os.path.exists(symbolizer_path):

-  print >>sys.stderr, "Symbolizer path does not exist:", symbolizer_path

+  print("Symbolizer path does not exist:", symbolizer_path, file=sys.stderr)

   sys.exit(1)

 if args.v:

-  print "Looking for symbols in:"

+  print("Looking for symbols in:")

   for s in binary_prefixes:

-    print "  %s" % (s,)

-  print "Stripping source path prefixes:"

+    print("  %s" % (s,))

+  print("Stripping source path prefixes:")

   for s in paths_to_cut:

-    print "  %s" % (s,)

-  print "Using llvm-symbolizer binary in:\n  %s" % (symbolizer_path,)

-  print

+    print("  %s" % (s,))

+  print("Using llvm-symbolizer binary in:\n  %s" % (symbolizer_path,))

+  print()

 symbolizer = Symbolizer(symbolizer_path, binary_prefixes, paths_to_cut)

 symbolizer.enable_logging(args.d)