Revert "Revert "Upgrade to 5.0.71.48"" DO NOT MERGE
This reverts commit f2e3994fa5148cc3d9946666f0b0596290192b0e,
and updates the x64 makefile properly so it doesn't break that
build.
FPIIM-449
Change-Id: Ib83e35bfbae6af627451c926a9650ec57c045605
(cherry picked from commit 109988c7ccb6f3fd1a58574fa3dfb88beaef6632)
diff --git a/build/write_buildflag_header.py b/build/write_buildflag_header.py
new file mode 100755
index 0000000..d46cfc8
--- /dev/null
+++ b/build/write_buildflag_header.py
@@ -0,0 +1,95 @@
+#!/usr/bin/env python
+# Copyright 2015 The Chromium Authors. All rights reserved.
+# Use of this source code is governed by a BSD-style license that can be
+# found in the LICENSE file.
+
+# This writes headers for build flags. See buildflag_header.gni for usage of
+# this system as a whole.
+#
+# The parameters are passed in a response file so we don't have to worry
+# about command line lengths. The name of the response file is passed on the
+# command line.
+#
+# The format of the response file is:
+# [--flags <list of one or more flag values>]
+
+import optparse
+import os
+import shlex
+import sys
+
+
+class Options:
+ def __init__(self, output, rulename, header_guard, flags):
+ self.output = output
+ self.rulename = rulename
+ self.header_guard = header_guard
+ self.flags = flags
+
+
+def GetOptions():
+ parser = optparse.OptionParser()
+ parser.add_option('--output', help="Output header name inside --gen-dir.")
+ parser.add_option('--rulename',
+ help="Helpful name of build rule for including in the " +
+ "comment at the top of the file.")
+ parser.add_option('--gen-dir',
+ help="Path to root of generated file directory tree.")
+ parser.add_option('--definitions',
+ help="Name of the response file containing the flags.")
+ cmdline_options, cmdline_flags = parser.parse_args()
+
+ # Compute header guard by replacing some chars with _ and upper-casing.
+ header_guard = cmdline_options.output.upper()
+ header_guard = \
+ header_guard.replace('/', '_').replace('\\', '_').replace('.', '_')
+ header_guard += '_'
+
+ # The actual output file is inside the gen dir.
+ output = os.path.join(cmdline_options.gen_dir, cmdline_options.output)
+
+ # Definition file in GYP is newline separated, in GN they are shell formatted.
+ # shlex can parse both of these.
+ with open(cmdline_options.definitions, 'r') as def_file:
+ defs = shlex.split(def_file.read())
+ flags_index = defs.index('--flags')
+
+ # Everything after --flags are flags. true/false are remapped to 1/0,
+ # everything else is passed through.
+ flags = []
+ for flag in defs[flags_index + 1 :]:
+ equals_index = flag.index('=')
+ key = flag[:equals_index]
+ value = flag[equals_index + 1:]
+
+ # Canonicalize and validate the value.
+ if value == 'true':
+ value = '1'
+ elif value == 'false':
+ value = '0'
+ flags.append((key, str(value)))
+
+ return Options(output=output,
+ rulename=cmdline_options.rulename,
+ header_guard=header_guard,
+ flags=flags)
+
+
+def WriteHeader(options):
+ with open(options.output, 'w') as output_file:
+ output_file.write("// Generated by build/write_buildflag_header.py\n")
+ if options.rulename:
+ output_file.write('// From "' + options.rulename + '"\n')
+
+ output_file.write('\n#ifndef %s\n' % options.header_guard)
+ output_file.write('#define %s\n\n' % options.header_guard)
+ output_file.write('#include "build/buildflag.h"\n\n')
+
+ for pair in options.flags:
+ output_file.write('#define BUILDFLAG_INTERNAL_%s() (%s)\n' % pair)
+
+ output_file.write('\n#endif // %s\n' % options.header_guard)
+
+
+options = GetOptions()
+WriteHeader(options)