diff options
Diffstat (limited to 'linkers/elftoolchain/libelf/elf_getbase.c')
-rw-r--r-- | linkers/elftoolchain/libelf/elf_getbase.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/linkers/elftoolchain/libelf/elf_getbase.c b/linkers/elftoolchain/libelf/elf_getbase.c new file mode 100644 index 0000000..30058ca --- /dev/null +++ b/linkers/elftoolchain/libelf/elf_getbase.c @@ -0,0 +1,48 @@ +/*- + * Copyright (c) 2006,2008 Joseph Koshy + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> + +#include <libelf.h> + +#include "_libelf.h" + +LIBELF_VCSID("$Id: elf_getbase.c 977 2010-06-06 11:50:31Z jkoshy $"); + +off_t +elf_getbase(Elf *e) +{ + if (e == NULL) { + LIBELF_SET_ERROR(ARGUMENT, 0); + return ((off_t) -1); + } + + if (e->e_parent == NULL) + return ((off_t) 0); + + return ((off_t) ((uintptr_t) e->e_rawfile - + (uintptr_t) e->e_parent->e_rawfile)); +} |