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Side by Side Diff: build/detect_host_arch.py

Issue 2101243005: Add a snapshot of flutter/engine/src/build to our sdk (Closed) Base URL: git@github.com:dart-lang/sdk.git@master
Patch Set: add README.dart Created 4 years, 5 months ago
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1 #!/usr/bin/env python
2 # Copyright 2014 The Chromium Authors. All rights reserved.
3 # Use of this source code is governed by a BSD-style license that can be
4 # found in the LICENSE file.
5
6 """Outputs host CPU architecture in format recognized by gyp."""
7
8 import platform
9 import re
10 import sys
11
12
13 def HostArch():
14 """Returns the host architecture with a predictable string."""
15 host_arch = platform.machine()
16
17 # Convert machine type to format recognized by gyp.
18 if re.match(r'i.86', host_arch) or host_arch == 'i86pc':
19 host_arch = 'ia32'
20 elif host_arch in ['x86_64', 'amd64']:
21 host_arch = 'x64'
22 elif host_arch.startswith('arm'):
23 host_arch = 'arm'
24
25 # platform.machine is based on running kernel. It's possible to use 64-bit
26 # kernel with 32-bit userland, e.g. to give linker slightly more memory.
27 # Distinguish between different userland bitness by querying
28 # the python binary.
29 if host_arch == 'x64' and platform.architecture()[0] == '32bit':
30 host_arch = 'ia32'
31
32 return host_arch
33
34 def DoMain(_):
35 """Hook to be called from gyp without starting a separate python
36 interpreter."""
37 return HostArch()
38
39 if __name__ == '__main__':
40 print DoMain([])
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