5e096f5b5d
This adds a new scons flag --no-duplicate-sources to build without linking source files to the build directory. I find this very helpful when using CLion, since I can now generate a compilation database using `bear scons build/ALL/gem5.debug --no-duplicate-sources` and CLion will now correctly semantically analyze all the files inside src/. It also ensures that clicking on a build warning/error now opens the real source file rather than a symlink. This is not enabled by default since it's possible that certain use cases are not working correctly, but the basic testing I've done so far appears to work just fine. It appears that with this change the `<root>/src` directory is no longer added to `PYTHONPATH` when running `tests/main.py`, so this change depends on https://gem5-review.git.corp.google.com/c/public/gem5/+/68757 Change-Id: Iddc9bf9c8211e68e5432c0a07f5c95f427c1ca16 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/68518 Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Bobby Bruce <bbruce@ucdavis.edu> Maintainer: Bobby Bruce <bbruce@ucdavis.edu>
155 lines
5.1 KiB
Python
155 lines
5.1 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('env')
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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.c')
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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_open.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_cap.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_move.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_syminfo.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_ar_util.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_memory.c')
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ElfFile('libelf_open.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 = env.Clone()
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if m4env['GCC']:
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m4env.Append(CCFLAGS=['-Wno-pointer-sign',
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'-Wno-unused-but-set-variable',
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'-Wno-implicit-function-declaration',
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'-Wno-override-init'])
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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', '-Wno-undef'])
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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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# Setup m4 tool
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m4env.Tool('m4')
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m4env.Append(M4FLAGS=['-DSRCDIR=%s' % Dir('.').srcnode().path])
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m4env['M4COM'] = '$M4 $M4FLAGS $SOURCES > $TARGET'
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m4env.M4(target=File('libelf_convert.c'),
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source=[File('elf_types.m4').srcnode(),
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File('libelf_convert.m4').srcnode()])
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m4env.M4(target=File('libelf_fsize.c'),
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source=[File('elf_types.m4').srcnode(),
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File('libelf_fsize.m4').srcnode()])
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m4env.M4(target=File('libelf_msize.c'),
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source=[File('elf_types.m4').srcnode(),
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File('libelf_msize.m4').srcnode()])
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m4env.Append(CPPPATH=[Dir('.'), Dir('.').srcnode()])
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# Build libelf as a static library with PIC code so it can be linked
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# into either m5 or the library
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m4env.Library('elf', [m4env.SharedObject(f) for f in elf_files])
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# Generate the native-elf-format header file based on the build system
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m4env.Command(File('native-elf-format.h'), File('native-elf-format'),
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'${SOURCE} > ${TARGET}')
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env.Prepend(CPPPATH=Dir('.').srcnode())
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env.Append(LIBS=[File('libelf.a')])
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env.Prepend(LIBPATH=[Dir('.')])
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