Adding gem5 source to svn.

git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1819 8c4709b5-6ec9-48aa-a5cd-a96041d1645a

simulators/gem5/util/statetrace/SConstruct

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+# Copyright (c) 2011 Gabe Black
+# 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 the copyright holders 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.
+#
+# Authors: Gabe Black
+
+Help('''
+To build a version of statetrace suitable to run on a particular ISA, use a
+target of the form build/<arch>/statetrace. For example, to build statetrace
+for ARM binaries, run:
+
+scons build/arm/statetrace
+
+You may need a cross compiler in order to build statetrace successfully. To
+specify an alternative compiler, set the CXX scons argument on the command
+line. The CXX environment variable is NOT considered when selecting the 
+compiler. To override the compiler for a particular target ISA, set the
+<arch>CXX scons argument. For example, to build both the AMD64 version and
+the ARM version at the same time using the system compiler for the AMD64
+version and a cross compiler for arm, your command line would look like the
+following:
+
+scons ARMCXX=arm-cross-g++ build/amd64/statetrace build/arm/statetrace
+
+After a successful build, the statetrace binary(binaries) will be located in
+the build/<arch>/ directories you specified on the command line.
+''')
+
+
+arches = 'amd64', 'arm', 'i686', 'sparc'
+
+import os
+
+main = Environment()
+main.SetOption('duplicate', 'soft-copy')
+main['CXXFLAGS'] = "-O3 -ggdb $_CPPINCFLAGS"
+
+main['CXX'] = ARGUMENTS.get('CXX', main['CXX'])
+
+for arch in arches:
+    env = main.Clone()
+    env['CXX'] = ARGUMENTS.get(arch.upper() + 'CXX', env['CXX'])
+    env.Append(CPPFLAGS = '-D__STATETRACE_%s__' % arch.upper())
+    Export('env', 'arch')
+    env.SConscript('SConscript', variant_dir = os.path.join('build', arch))