ext/libelf/SConscript

   1 # -*- mode:python -*-
   2
   3 # Copyright (c) 2004-2005 The Regents of The University of Michigan
   4 # All rights reserved.
   5 #
   6 # Redistribution and use in source and binary forms, with or without
   7 # modification, are permitted provided that the following conditions are
   8 # met: redistributions of source code must retain the above copyright
   9 # notice, this list of conditions and the following disclaimer;
  10 # redistributions in binary form must reproduce the above copyright
  11 # notice, this list of conditions and the following disclaimer in the
  12 # documentation and/or other materials provided with the distribution;
  13 # neither the name of the copyright holders nor the names of its
  14 # contributors may be used to endorse or promote products derived from
  15 # this software without specific prior written permission.
  16 #
  17 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  18 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  19 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  20 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  21 # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  22 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  23 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  24 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  25 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  26 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  27 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  28 #
  29 # Authors: Nathan Binkert
  30
  31 import os, subprocess
  32
  33 Import('main')
  34
  35 from m5.util import compareVersions
  36
  37 elf_files = []
  38 def ElfFile(filename):
  39     elf_files.append(File(filename))
  40
  41 ElfFile('elf_begin.c')
  42 ElfFile('elf_cntl.c')
  43 ElfFile('elf_data.c')
  44 ElfFile('elf_end.c')
  45 ElfFile('elf_errmsg.c')
  46 ElfFile('elf_errno.c')
  47 ElfFile('elf_fill.c')
  48 ElfFile('elf_flag.c')
  49 ElfFile('elf_getarhdr.c')
  50 ElfFile('elf_getarsym.c')
  51 ElfFile('elf_getbase.c')
  52 ElfFile('elf_getident.c')
  53 ElfFile('elf_hash.c')
  54 ElfFile('elf_kind.c')
  55 ElfFile('elf_memory.c')
  56 ElfFile('elf_next.c')
  57 ElfFile('elf_phnum.c')
  58 ElfFile('elf_rand.c')
  59 ElfFile('elf_rawfile.c')
  60 ElfFile('elf_scn.c')
  61 ElfFile('elf_shnum.c')
  62 ElfFile('elf_shstrndx.c')
  63 ElfFile('elf_strptr.c')
  64 ElfFile('elf_update.c')
  65 ElfFile('elf_version.c')
  66 ElfFile('gelf_checksum.c')
  67 ElfFile('gelf_dyn.c')
  68 ElfFile('gelf_ehdr.c')
  69 ElfFile('gelf_fsize.c')
  70 ElfFile('gelf_getclass.c')
  71 ElfFile('gelf_phdr.c')
  72 ElfFile('gelf_rel.c')
  73 ElfFile('gelf_rela.c')
  74 ElfFile('gelf_shdr.c')
  75 ElfFile('gelf_sym.c')
  76 ElfFile('gelf_symshndx.c')
  77 ElfFile('gelf_xlate.c')
  78 ElfFile('libelf.c')
  79 ElfFile('libelf_align.c')
  80 ElfFile('libelf_allocate.c')
  81 ElfFile('libelf_ar.c')
  82 ElfFile('libelf_checksum.c')
  83 ElfFile('libelf_data.c')
  84 ElfFile('libelf_ehdr.c')
  85 ElfFile('libelf_extended.c')
  86 ElfFile('libelf_phdr.c')
  87 ElfFile('libelf_shdr.c')
  88 ElfFile('libelf_xlate.c')
  89
  90 ElfFile('libelf_convert.c')
  91 ElfFile('libelf_fsize.c')
  92 ElfFile('libelf_msize.c')
  93
  94 m4env = main.Clone()
  95 if m4env['GCC']:
  96     if compareVersions(m4env['GCC_VERSION'], '4') >= 0:
  97         m4env.Append(CCFLAGS=['-Wno-pointer-sign'])
  98     if compareVersions(m4env['GCC_VERSION'], '4.6') >= 0:
  99         m4env.Append(CCFLAGS=['-Wno-unused-but-set-variable',
 100                               '-Wno-implicit-function-declaration'])
 101 if m4env['CLANG']:
 102     m4env.Append(CCFLAGS=['-Wno-initializer-overrides', '-Wno-pointer-sign'])
 103     # clang defaults to c99 (while gcc defaults to gnu89) and there is a
 104     # difference in the handling of inlining functions which causes
 105     # linking problems with multiple definitions of the symbols in
 106     # sysmacros.h for older versions of glibc
 107     m4env.Append(CCFLAGS=['-std=gnu89'])
 108 m4env.Append(CCFLAGS=['-Wno-implicit'])
 109 del m4env['CPPPATH']
 110
 111 # If we have gm4 use it
 112 if m4env.Detect('gm4'):
 113     m4env['M4'] = 'gm4'
 114
 115 # Check that m4 is available
 116 import SCons.Tool.m4
 117 if not SCons.Tool.m4.exists(m4env):
 118    print "Error: Can't find version of M4 macro processor.  " + \
 119          "Please install M4 and try again."
 120    Exit(1)
 121
 122 m4env.Append(M4FLAGS=['-DSRCDIR=%s' % Dir('.').path])
 123 m4env['M4COM'] = '$M4 $M4FLAGS $SOURCES > $TARGET'
 124 m4env.M4(target=File('libelf_convert.c'),
 125          source=[File('elf_types.m4'), File('libelf_convert.m4')])
 126 m4env.M4(target=File('libelf_fsize.c'),
 127          source=[File('elf_types.m4'), File('libelf_fsize.m4')])
 128 m4env.M4(target=File('libelf_msize.c'),
 129          source=[File('elf_types.m4'), File('libelf_msize.m4')])
 130
 131 # Build libelf as a static library with PIC code so it can be linked
 132 # into either m5 or the library
 133 m4env.Library('elf', [m4env.SharedObject(f) for f in elf_files])
 134
 135 main.Prepend(CPPPATH=Dir('.'))
 136 main.Append(LIBS=['elf'])
 137 main.Prepend(LIBPATH=[Dir('.')])
 138