406891c62a
This patch checks that the compiler in use is either gcc >= 4.4 or clang >= 2.9. and enables building with --std=c++0x in all cases. As a consequence, we can tidy up the hashmap and always have static_assert available. If anyone wants to use alternative compilers, icc for example supports c++0x to a similar level and could be added if needed. This patch opens up for a more elaborate use of c++0x features that are present in gcc 4.4 and clang 2.9, e.g. auto typed variables, variadic templates, rvalues and move semantics, and strongly typed enums. There will be no going back on this one...
137 lines
4.6 KiB
Python
137 lines
4.6 KiB
Python
# -*- mode:python -*-
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# Copyright (c) 2004-2005 The Regents of The University of Michigan
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# All rights reserved.
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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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#
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# Authors: Nathan Binkert
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import os, subprocess
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Import('main')
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from m5.util import compareVersions
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elf_files = []
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def ElfFile(filename):
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elf_files.append(File(filename))
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ElfFile('elf_begin.c')
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ElfFile('elf_cntl.c')
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ElfFile('elf_data.c')
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ElfFile('elf_end.c')
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ElfFile('elf_errmsg.c')
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ElfFile('elf_errno.c')
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ElfFile('elf_fill.c')
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ElfFile('elf_flag.c')
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ElfFile('elf_getarhdr.c')
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ElfFile('elf_getarsym.c')
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ElfFile('elf_getbase.c')
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ElfFile('elf_getident.c')
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ElfFile('elf_hash.c')
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ElfFile('elf_kind.c')
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ElfFile('elf_memory.c')
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ElfFile('elf_next.c')
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ElfFile('elf_phnum.c')
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ElfFile('elf_rand.c')
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ElfFile('elf_rawfile.c')
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ElfFile('elf_scn.c')
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ElfFile('elf_shnum.c')
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ElfFile('elf_shstrndx.c')
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ElfFile('elf_strptr.c')
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ElfFile('elf_update.c')
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ElfFile('elf_version.c')
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ElfFile('gelf_checksum.c')
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ElfFile('gelf_dyn.c')
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ElfFile('gelf_ehdr.c')
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ElfFile('gelf_fsize.c')
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ElfFile('gelf_getclass.c')
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ElfFile('gelf_phdr.c')
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ElfFile('gelf_rel.c')
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ElfFile('gelf_rela.c')
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ElfFile('gelf_shdr.c')
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ElfFile('gelf_sym.c')
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ElfFile('gelf_symshndx.c')
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ElfFile('gelf_xlate.c')
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ElfFile('libelf.c')
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ElfFile('libelf_align.c')
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ElfFile('libelf_allocate.c')
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ElfFile('libelf_ar.c')
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ElfFile('libelf_checksum.c')
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ElfFile('libelf_data.c')
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ElfFile('libelf_ehdr.c')
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ElfFile('libelf_extended.c')
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ElfFile('libelf_phdr.c')
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ElfFile('libelf_shdr.c')
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ElfFile('libelf_xlate.c')
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ElfFile('libelf_convert.c')
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ElfFile('libelf_fsize.c')
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ElfFile('libelf_msize.c')
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m4env = main.Clone()
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if m4env['GCC']:
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m4env.Append(CCFLAGS=['-Wno-pointer-sign'])
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if compareVersions(m4env['GCC_VERSION'], '4.6') >= 0:
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m4env.Append(CCFLAGS=['-Wno-unused-but-set-variable',
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'-Wno-implicit-function-declaration'])
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if m4env['CLANG']:
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m4env.Append(CCFLAGS=['-Wno-initializer-overrides', '-Wno-pointer-sign'])
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# clang defaults to c99 (while gcc defaults to gnu89) and there is a
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# difference in the handling of inlining functions which causes
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# linking problems with multiple definitions of the symbols in
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# sysmacros.h for older versions of glibc
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m4env.Append(CCFLAGS=['-std=gnu89'])
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m4env.Append(CCFLAGS=['-Wno-implicit'])
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del m4env['CPPPATH']
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# If we have gm4 use it
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if m4env.Detect('gm4'):
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m4env['M4'] = 'gm4'
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# Check that m4 is available
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import SCons.Tool.m4
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if not SCons.Tool.m4.exists(m4env):
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print "Error: Can't find version of M4 macro processor. " + \
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"Please install M4 and try again."
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Exit(1)
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m4env.Append(M4FLAGS=['-DSRCDIR=%s' % Dir('.').path])
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m4env['M4COM'] = '$M4 $M4FLAGS $SOURCES > $TARGET'
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m4env.M4(target=File('libelf_convert.c'),
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source=[File('elf_types.m4'), File('libelf_convert.m4')])
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m4env.M4(target=File('libelf_fsize.c'),
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source=[File('elf_types.m4'), File('libelf_fsize.m4')])
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m4env.M4(target=File('libelf_msize.c'),
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source=[File('elf_types.m4'), File('libelf_msize.m4')])
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# Build libelf as a static library with PIC code so it can be linked
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# into either m5 or the library
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m4env.Library('elf', [m4env.SharedObject(f) for f in elf_files])
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main.Prepend(CPPPATH=Dir('.'))
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main.Append(LIBS=['elf'])
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main.Prepend(LIBPATH=[Dir('.')])
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