dart-sdk/build/detect_host_arch.py
Zachary Anderson d9eb629ffa [infra] Use Clang for ia32 and arm64. Use the dl'd sysroots by default.
This CL switches the ia32 and arm64 builds to use clang by default.
The arm build can't be switched at least until we roll clang to
pick up the fix for https://reviews.llvm.org/D34691.

This CL also changes to use the sysroots from wheezy (and jessie
for arm64) by default so that we can be building/testing locally with
the same setup as we are shipping in the SDK.

Change-Id: I09a1907ee7f78c3f4bb8d56ffdbbd6107ed054d9
Reviewed-on: https://dart-review.googlesource.com/25160
Reviewed-by: Ryan Macnak <rmacnak@google.com>
Reviewed-by: Vyacheslav Egorov <vegorov@google.com>
Commit-Queue: Zach Anderson <zra@google.com>
2017-12-02 06:19:33 +00:00

51 lines
1.5 KiB
Python
Executable file

#!/usr/bin/env python
# Copyright 2014 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.
"""Outputs host CPU architecture in format recognized by gyp."""
import platform
import re
import sys
def HostArch():
"""Returns the host architecture with a predictable string."""
host_arch = platform.machine()
# Convert machine type to format recognized by gyp.
if re.match(r'i.86', host_arch) or host_arch == 'i86pc':
host_arch = 'ia32'
elif host_arch in ['x86_64', 'amd64']:
host_arch = 'x64'
elif host_arch.startswith('arm'):
host_arch = 'arm'
elif host_arch.startswith('aarch64'):
host_arch = 'arm64'
elif host_arch.startswith('mips'):
host_arch = 'mips'
elif host_arch.startswith('ppc'):
host_arch = 'ppc'
elif host_arch.startswith('s390'):
host_arch = 's390'
# platform.machine is based on running kernel. It's possible to use 64-bit
# kernel with 32-bit userland, e.g. to give linker slightly more memory.
# Distinguish between different userland bitness by querying
# the python binary.
if host_arch == 'x64' and platform.architecture()[0] == '32bit':
host_arch = 'ia32'
if host_arch == 'arm64' and platform.architecture()[0] == '32bit':
host_arch = 'arm'
return host_arch
def DoMain(_):
"""Hook to be called from gyp without starting a separate python
interpreter."""
return HostArch()
if __name__ == '__main__':
print DoMain([])