1# -*- mode:python -*-
2
3# Copyright (c) 2013 ARM Limited
4# All rights reserved.
5#
6# The license below extends only to copyright in the software and shall
7# not be construed as granting a license to any other intellectual
8# property including but not limited to intellectual property relating
9# to a hardware implementation of the functionality of the software
10# licensed hereunder. You may use the software subject to the license
11# terms below provided that you ensure that this notice is replicated
12# unmodified and in its entirety in all distributions of the software,
13# modified or unmodified, in source code or in binary form.
14#
15# Copyright (c) 2011 Advanced Micro Devices, Inc.
16# Copyright (c) 2009 The Hewlett-Packard Development Company
17# Copyright (c) 2004-2005 The Regents of The University of Michigan
18# All rights reserved.
19#
20# Redistribution and use in source and binary forms, with or without
21# modification, are permitted provided that the following conditions are
22# met: redistributions of source code must retain the above copyright

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88 EnsureSConsVersion(0, 98, 1)
89except SystemExit, e:
90 print """
91For more details, see:
92 http://gem5.org/Dependencies
93"""
94 raise
95
96# We ensure the python version early because because python-config
97# requires python 2.5
98try:
99 EnsurePythonVersion(2, 5)
100except SystemExit, e:
101 print """
102You can use a non-default installation of the Python interpreter by
103rearranging your PATH so that scons finds the non-default 'python' and
104'python-config' first.
105
106For more details, see:
107 http://gem5.org/wiki/index.php/Using_a_non-default_Python_installation
108"""
109 raise
110
111# Global Python includes
112import os

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833 self.env = env
834 def Finish(self):
835 return self.env
836 def __getattr__(self, mname):
837 return NullCheck
838
839 conf = NullConf(main)
840
841# Cache build files in the supplied directory.
842if main['M5_BUILD_CACHE']:
843 print 'Using build cache located at', main['M5_BUILD_CACHE']
844 CacheDir(main['M5_BUILD_CACHE'])
845
846# Find Python include and library directories for embedding the
847# interpreter. We rely on python-config to resolve the appropriate
848# includes and linker flags. ParseConfig does not seem to understand
849# the more exotic linker flags such as -Xlinker and -export-dynamic so
850# we add them explicitly below. If you want to link in an alternate
851# version of python, see above for instructions on how to invoke
852# scons with the appropriate PATH set.
853py_includes = readCommand(['python-config', '--includes'],
854 exception='').split()
855# Strip the -I from the include folders before adding them to the
856# CPPPATH
857main.Append(CPPPATH=map(lambda inc: inc[2:], py_includes))
858
859# Read the linker flags and split them into libraries and other link
860# flags. The libraries are added later through the call the CheckLib.
861py_ld_flags = readCommand(['python-config', '--ldflags'], exception='').split()
862py_libs = []
863for lib in py_ld_flags:
864 if not lib.startswith('-l'):
865 main.Append(LINKFLAGS=[lib])
866 else:
867 lib = lib[2:]
868 if lib not in py_libs:
869 py_libs.append(lib)
870
871# verify that this stuff works
872if not conf.CheckHeader('Python.h', '<>'):
873 print "Error: can't find Python.h header in", py_includes
874 print "Install Python headers (package python-dev on Ubuntu and RedHat)"
875 Exit(1)
876
877for lib in py_libs:
878 if not conf.CheckLib(lib):

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