1 # Copyright 2020 Google, Inc.
3 # Redistribution and use in source and binary forms, with or without
4 # modification, are permitted provided that the following conditions are
5 # met: redistributions of source code must retain the above copyright
6 # notice, this list of conditions and the following disclaimer;
7 # redistributions in binary form must reproduce the above copyright
8 # notice, this list of conditions and the following disclaimer in the
9 # documentation and/or other materials provided with the distribution;
10 # neither the name of the copyright holders nor the names of its
11 # contributors may be used to endorse or promote products derived from
12 # this software without specific prior written permission.
14 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
15 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
16 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
17 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
18 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
19 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
20 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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24 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 # Includes which are shared with gem5 itself.
31 common_include
= Dir('..').Dir('..').Dir('include')
34 build_dir
= Dir('build')
37 return os
.path
.abspath(str(d
))
40 main
.Append(CCFLAGS
=[ '-O2' ])
41 main
.Append(CPPPATH
=[ common_include
])
43 # Propogate the environment's PATH setting.
44 main
['ENV']['PATH'] = os
.environ
['PATH']
46 # Cross compiler prefix.
47 main
['CROSS_COMPILE'] = os
.environ
.get('CROSS_COMPILE', 'aarch64-linux-gnu-')
49 main
['CC'] = '${CROSS_COMPILE}gcc'
50 main
['AS'] = '${CROSS_COMPILE}as'
51 main
['LD'] = '${CROSS_COMPILE}ld'
52 main
['AR'] = '${CROSS_COMPILE}ar'
54 # Detect some dependencies of some forms of the m5 utility/library.
55 main
['HAVE_JAVA'] = all(key
in main
for key
in ('JAVAC', 'JAR'))
56 main
['HAVE_PKG_CONFIG'] = main
.Detect('pkg-config') is not None
57 main
['HAVE_LUA51'] = (main
['HAVE_PKG_CONFIG'] and
58 os
.system('pkg-config --exists lua51') == 0)
60 # Put the sconsign file in the build dir so everything can be deleted at once.
61 main
.SConsignFile(os
.path
.join(abspath(build_dir
), 'sconsign'))
62 # Use soft links instead of hard links when setting up a build directory.
63 main
.SetOption('duplicate', 'soft-copy')
66 main
.SConscript(src_dir
.File('SConscript'),
67 variant_dir
=build_dir
, exports
='env')