1# -*- mode:python -*-
2
3# Copyright (c) 2011 Advanced Micro Devices, Inc.
4# Copyright (c) 2009 The Hewlett-Packard Development Company
5# Copyright (c) 2004-2005 The Regents of The University of Michigan
6# All rights reserved.
7#
8# Redistribution and use in source and binary forms, with or without

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679 asm(".globl _x; _x: .byte 0");
680 extern int x;
681 int main() { return x; }
682 ''', extension=".c")
683 context.env.Append(LEADING_UNDERSCORE=ret)
684 context.Result(ret)
685 return ret
686
687# Platform-specific configuration. Note again that we assume that all
688# builds under a given build root run on the same host platform.
689conf = Configure(main,
690 conf_dir = joinpath(build_root, '.scons_config'),
691 log_file = joinpath(build_root, 'scons_config.log'),
692 custom_tests = { 'CheckLeading' : CheckLeading })
693
694# Check for leading underscores. Don't really need to worry either
695# way so don't need to check the return code.
696conf.CheckLeading()
697
698# Check if we should compile a 64 bit binary on Mac OS X/Darwin
699try:
700 import platform
701 uname = platform.uname()
702 if uname[0] == 'Darwin' and compareVersions(uname[2], '9.0.0') >= 0:
703 if int(readCommand('sysctl -n hw.cpu64bit_capable')[0]):
704 main.Append(CCFLAGS=['-arch', 'x86_64'])
705 main.Append(CFLAGS=['-arch', 'x86_64'])

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918 BoolVariable('CP_ANNOTATE', 'Enable critical path annotation capability', False),
919 EnumVariable('PROTOCOL', 'Coherence protocol for Ruby', 'None',
920 all_protocols),
921 )
922
923# These variables get exported to #defines in config/*.hh (see src/SConscript).
924export_vars += ['USE_FENV', 'SS_COMPATIBLE_FP',
925 'TARGET_ISA', 'CP_ANNOTATE', 'USE_POSIX_CLOCK', 'PROTOCOL',
926 ]
927
928###################################################
929#
930# Define a SCons builder for configuration flag headers.
931#
932###################################################
933
934# This function generates a config header file that #defines the

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