SConscript revision 9388:b958d9fa867c 
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
31import os, subprocess
32
33Import('main')
34
35from m5.util import compareVersions
36
37elf_files = []
38def ElfFile(filename):
39    elf_files.append(File(filename))
40
41ElfFile('elf_begin.c')
42ElfFile('elf_cntl.c')
43ElfFile('elf_data.c')
44ElfFile('elf_end.c')
45ElfFile('elf_errmsg.c')
46ElfFile('elf_errno.c')
47ElfFile('elf_fill.c')
48ElfFile('elf_flag.c')
49ElfFile('elf_getarhdr.c')
50ElfFile('elf_getarsym.c')
51ElfFile('elf_getbase.c')
52ElfFile('elf_getident.c')
53ElfFile('elf_hash.c')
54ElfFile('elf_kind.c')
55ElfFile('elf_memory.c')
56ElfFile('elf_next.c')
57ElfFile('elf_phnum.c')
58ElfFile('elf_rand.c')
59ElfFile('elf_rawfile.c')
60ElfFile('elf_scn.c')
61ElfFile('elf_shnum.c')
62ElfFile('elf_shstrndx.c')
63ElfFile('elf_strptr.c')
64ElfFile('elf_update.c')
65ElfFile('elf_version.c')
66ElfFile('gelf_checksum.c')
67ElfFile('gelf_dyn.c')
68ElfFile('gelf_ehdr.c')
69ElfFile('gelf_fsize.c')
70ElfFile('gelf_getclass.c')
71ElfFile('gelf_phdr.c')
72ElfFile('gelf_rel.c')
73ElfFile('gelf_rela.c')
74ElfFile('gelf_shdr.c')
75ElfFile('gelf_sym.c')
76ElfFile('gelf_symshndx.c')
77ElfFile('gelf_xlate.c')
78ElfFile('libelf.c')
79ElfFile('libelf_align.c')
80ElfFile('libelf_allocate.c')
81ElfFile('libelf_ar.c')
82ElfFile('libelf_checksum.c')
83ElfFile('libelf_data.c')
84ElfFile('libelf_ehdr.c')
85ElfFile('libelf_extended.c')
86ElfFile('libelf_phdr.c')
87ElfFile('libelf_shdr.c')
88ElfFile('libelf_xlate.c')
89
90ElfFile('libelf_convert.c')
91ElfFile('libelf_fsize.c')
92ElfFile('libelf_msize.c')
93
94m4env = main.Clone()
95if 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'])
101if 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'])
108m4env.Append(CCFLAGS=['-Wno-implicit'])
109del m4env['CPPPATH']
110
111# If we have gm4 use it
112if m4env.Detect('gm4'):
113    m4env['M4'] = 'gm4'
114
115# Check that m4 is available
116import SCons.Tool.m4
117if 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
122m4env.Append(M4FLAGS=['-DSRCDIR=%s' % Dir('.').path])
123m4env['M4COM'] = '$M4 $M4FLAGS $SOURCES > $TARGET'
124m4env.M4(target=File('libelf_convert.c'),
125         source=[File('elf_types.m4'), File('libelf_convert.m4')])
126m4env.M4(target=File('libelf_fsize.c'),
127         source=[File('elf_types.m4'), File('libelf_fsize.m4')])
128m4env.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
133m4env.Library('elf', [m4env.SharedObject(f) for f in elf_files])
134
135main.Prepend(CPPPATH=Dir('.'))
136main.Append(LIBS=['elf'])
137main.Prepend(LIBPATH=[Dir('.')])
138
139