SConstruct revision 8113 
1# Copyright (c) 2011 Gabe Black
2# All rights reserved.
3#
4# Redistribution and use in source and binary forms, with or without
5# modification, are permitted provided that the following conditions are
6# met: redistributions of source code must retain the above copyright
7# notice, this list of conditions and the following disclaimer;
8# redistributions in binary form must reproduce the above copyright
9# notice, this list of conditions and the following disclaimer in the
10# documentation and/or other materials provided with the distribution;
11# neither the name of the copyright holders nor the names of its
12# contributors may be used to endorse or promote products derived from
13# this software without specific prior written permission.
14#
15# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
16# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
17# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
18# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
19# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
20# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
21# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
22# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
23# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
25# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26#
27# Authors: Gabe Black
28
29Help('''
30To build a version of statetrace suitable to run on a particular ISA, use a
31target of the form build/<arch>/statetrace. For example, to build statetrace
32for ARM binaries, run:
33
34scons build/arm/statetrace
35
36You may need a cross compiler in order to build statetrace successfully. To
37specify an alternative compiler, set the CXX scons argument on the command
38line. The CXX environment variable is NOT considered when selecting the 
39compiler. To override the compiler for a particular target ISA, set the
40<arch>CXX scons argument. For example, to build both the AMD64 version and
41the ARM version at the same time using the system compiler for the AMD64
42version and a cross compiler for arm, your command line would look like the
43following:
44
45scons ARMCXX=arm-cross-g++ build/amd64/statetrace build/arm/statetrace
46
47After a successful build, the statetrace binary(binaries) will be located in
48the build/<arch>/ directories you specified on the command line.
49''')
50
51
52arches = 'amd64', 'arm', 'i386', 'sparc'
53
54import os
55
56main = Environment()
57main.SetOption('duplicate', 'soft-copy')
58main['CXXFLAGS'] = "-O3 -ggdb $_CPPINCFLAGS"
59
60main['CXX'] = ARGUMENTS.get('CXX', main['CXX'])
61
62for arch in arches:
63    env = main.Clone()
64    env['CXX'] = ARGUMENTS.get(arch.upper() + 'CXX', env['CXX'])
65    env.Append(CPPFLAGS = '-D__STATETRACE_%s__' % arch.upper())
66    Export('env', 'arch')
67    env.SConscript('SConscript', variant_dir = os.path.join('build', arch))
68