Move V8 to external/v8
Change-Id: If68025d67453785a651c5dfb34fad298c16676a4
diff --git a/tools/utils.py b/tools/utils.py
new file mode 100644
index 0000000..78d1e0d
--- /dev/null
+++ b/tools/utils.py
@@ -0,0 +1,80 @@
+# Copyright 2008 the V8 project authors. All rights reserved.
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+# * Redistributions in binary form must reproduce the above
+# copyright notice, this list of conditions and the following
+# disclaimer in the documentation and/or other materials provided
+# with the distribution.
+# * Neither the name of Google Inc. nor the names of its
+# contributors may be used to endorse or promote products derived
+# from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+import platform
+import re
+
+
+# Reads a .list file into an array of strings
+def ReadLinesFrom(name):
+ list = []
+ for line in open(name):
+ if '#' in line:
+ line = line[:line.find('#')]
+ line = line.strip()
+ if len(line) == 0:
+ continue
+ list.append(line)
+ return list
+
+
+def GuessOS():
+ id = platform.system()
+ if id == 'Linux':
+ return 'linux'
+ elif id == 'Darwin':
+ return 'macos'
+ elif id == 'Windows' or id == 'Microsoft':
+ # On Windows Vista platform.system() can return 'Microsoft' with some
+ # versions of Python, see http://bugs.python.org/issue1082
+ return 'win32'
+ elif id == 'FreeBSD':
+ return 'freebsd'
+ else:
+ return None
+
+
+def GuessArchitecture():
+ id = platform.machine()
+ if id.startswith('arm'):
+ return 'arm'
+ elif (not id) or (not re.match('(x|i[3-6])86', id) is None):
+ return 'ia32'
+ else:
+ return None
+
+
+def GuessWordsize():
+ if '64' in platform.machine():
+ return '64'
+ else:
+ return '32'
+
+
+def IsWindows():
+ return GuessOS() == 'win32'