77d1168e78
These will be filled out in later changes. This CL just adds the plumbing to the build script. Change-Id: If58ea023d0c85eae0160f88217c83fca70346da2 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/27688 Maintainer: Gabe Black <gabeblack@google.com> Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Jason Lowe-Power <power.jg@gmail.com>
147 lines
5.5 KiB
Python
147 lines
5.5 KiB
Python
# Copyright 2020 Google, Inc.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions are
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# met: redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer;
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# redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution;
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# neither the name of the copyright holders nor the names of its
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# contributors may be used to endorse or promote products derived from
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# this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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import copy
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import os
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main = Environment()
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gem5_root = Dir('..').Dir('..')
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# Includes which are shared with gem5 itself.
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common_include = gem5_root.Dir('include')
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ext_dir = gem5_root.Dir('ext')
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googletest_dir = ext_dir.Dir('googletest')
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src_dir = Dir('src')
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build_dir = Dir('build')
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def abspath(d):
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return os.path.abspath(str(d))
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# Universal settings.
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main.Append(CXXFLAGS=[ '-O2' ])
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main.Append(CCFLAGS=[ '-O2' ])
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main.Append(CPPPATH=[ common_include ])
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# Propogate the environment's PATH setting.
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main['ENV']['PATH'] = os.environ['PATH']
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# Detect some dependencies of some forms of the m5 utility/library.
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main['HAVE_JAVA'] = all(key in main for key in ('JAVAC', 'JAR'))
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main['HAVE_PKG_CONFIG'] = main.Detect('pkg-config') is not None
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main['HAVE_LUA51'] = (main['HAVE_PKG_CONFIG'] and
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os.system('pkg-config --exists lua51') == 0)
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# Put the sconsign file in the build dir so everything can be deleted at once.
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main.SConsignFile(os.path.join(abspath(build_dir), 'sconsign'))
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# Use soft links instead of hard links when setting up a build directory.
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main.SetOption('duplicate', 'soft-copy')
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def GTest(env, name, *srcs, **kwargs):
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if 'GTEST_ENV' not in env:
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gtest_env = env.Clone(OBJSUFFIX='.to', SHOBJSUFFIX='.sto')
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gtest_env.Append(CPPFLAGS=[ '${GTEST_CPPFLAGS}' ])
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gtest_env.Append(LIBS=[ '${GTEST_LIBS}' ])
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env['GTEST_ENV'] = gtest_env
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if not srcs:
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srcs = [ name + '.cc', name + '.test.cc' ]
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env['GTEST_ENV'].Program('test/%s' % name, srcs, **kwargs)
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main.AddMethod(GTest)
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native = main.Clone()
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native_dir = build_dir.Dir('native')
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# Bring in the googletest sources.
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native.SConscript(googletest_dir.File('SConscript'),
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variant_dir=native_dir.Dir('googletest'), exports={ 'main': native })
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native.SConscript(src_dir.File('SConscript.native'),
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variant_dir=native_dir, exports={ 'env': native })
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main['CC'] = '${CROSS_COMPILE}gcc'
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main['CXX'] = '${CROSS_COMPILE}g++'
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main['AS'] = '${CROSS_COMPILE}as'
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main['LD'] = '${CROSS_COMPILE}ld'
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main['AR'] = '${CROSS_COMPILE}ar'
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class CallType(object):
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def __init__(self, name):
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self.name = name
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self.impl_file = None
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self.enabled = False
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self.default = False
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def impl(self, impl, default=False):
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self.impl_file = impl
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self.enabled = True
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self.default = default
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call_types = {
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# Magic instruction.
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'inst': CallType('inst'),
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# Magic address.
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'addr': CallType('addr'),
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# Semihosting extension.
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'semi': CallType('semi'),
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}
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for root, dirs, files in os.walk(abspath(src_dir)):
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# Each SConsopts file describes an ABI of the m5 utility.
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if 'SConsopts' in files:
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env = main.Clone()
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env['CALL_TYPE'] = copy.deepcopy(call_types)
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# The user may override ABI settings by setting environment
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# variables of the form ${ABI}.${OPTION}. For instance, to set the
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# CROSS_COMPILE prefix for abi foo to bar-, the user would set an
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# environment variable foo.CROSS_COMPILE=bar-.
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#
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# This also considers scons command line settings which may look like
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# environment variables, but are set after "scons" on the command line.
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def get_abi_opt(name, default):
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var_name = env.subst('${ABI}.%s' % name)
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env[name] = os.environ.get(
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var_name, ARGUMENTS.get(var_name, default))
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# Process the ABI's settings in the SConsopts file, storing them
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# in a copy of the primary environment.
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env.SConscript(Dir(root).File('SConsopts'),
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exports=[ 'env', 'get_abi_opt' ])
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# Once all the options have been configured, set up build targets for
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# this abi.
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abi_dir = build_dir.Dir(env.subst('${ABI}'))
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# Bring in the googletest sources.
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env.SConscript(googletest_dir.File('SConscript'),
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variant_dir=abi_dir.Dir('googletest'),
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exports={ 'main': env })
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env.SConscript(src_dir.File('SConscript'),
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variant_dir=abi_dir, exports='env')
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