diff options
Diffstat (limited to 'lib/libelf/gelf_rel.c')
| -rw-r--r-- | lib/libelf/gelf_rel.c | 153 |
1 files changed, 0 insertions, 153 deletions
diff --git a/lib/libelf/gelf_rel.c b/lib/libelf/gelf_rel.c deleted file mode 100644 index e2a9f90..0000000 --- a/lib/libelf/gelf_rel.c +++ /dev/null @@ -1,153 +0,0 @@ -/*- - * Copyright (c) 2006 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> -__FBSDID("$FreeBSD$"); - -#include <sys/limits.h> - -#include <assert.h> -#include <gelf.h> - -#include "_libelf.h" - -GElf_Rel * -gelf_getrel(Elf_Data *d, int ndx, GElf_Rel *dst) -{ - int ec; - Elf *e; - Elf_Scn *scn; - Elf32_Rel *rel32; - Elf64_Rel *rel64; - size_t msz; - uint32_t sh_type; - - if (d == NULL || ndx < 0 || dst == NULL || - (scn = d->d_scn) == NULL || - (e = scn->s_elf) == NULL) { - LIBELF_SET_ERROR(ARGUMENT, 0); - return (NULL); - } - - ec = e->e_class; - assert(ec == ELFCLASS32 || ec == ELFCLASS64); - - if (ec == ELFCLASS32) - sh_type = scn->s_shdr.s_shdr32.sh_type; - else - sh_type = scn->s_shdr.s_shdr64.sh_type; - - if (_libelf_xlate_shtype(sh_type) != ELF_T_REL) { - LIBELF_SET_ERROR(ARGUMENT, 0); - return (NULL); - } - - msz = _libelf_msize(ELF_T_REL, ec, e->e_version); - - assert(msz > 0); - - if (msz * ndx >= d->d_size) { - LIBELF_SET_ERROR(ARGUMENT, 0); - return (NULL); - } - - if (ec == ELFCLASS32) { - rel32 = (Elf32_Rel *) d->d_buf + ndx; - - dst->r_offset = (Elf64_Addr) rel32->r_offset; - dst->r_info = ELF64_R_INFO( - (Elf64_Xword) ELF32_R_SYM(rel32->r_info), - ELF32_R_TYPE(rel32->r_info)); - - } else { - - rel64 = (Elf64_Rel *) d->d_buf + ndx; - - *dst = *rel64; - } - - return (dst); -} - -int -gelf_update_rel(Elf_Data *d, int ndx, GElf_Rel *dr) -{ - int ec; - Elf *e; - Elf_Scn *scn; - Elf32_Rel *rel32; - Elf64_Rel *rel64; - size_t msz; - uint32_t sh_type; - - if (d == NULL || ndx < 0 || dr == NULL || - (scn = d->d_scn) == NULL || - (e = scn->s_elf) == NULL) { - LIBELF_SET_ERROR(ARGUMENT, 0); - return (0); - } - - ec = e->e_class; - assert(ec == ELFCLASS32 || ec == ELFCLASS64); - - if (ec == ELFCLASS32) - sh_type = scn->s_shdr.s_shdr32.sh_type; - else - sh_type = scn->s_shdr.s_shdr64.sh_type; - - if (_libelf_xlate_shtype(sh_type) != ELF_T_REL) { - LIBELF_SET_ERROR(ARGUMENT, 0); - return (0); - } - - msz = _libelf_msize(ELF_T_REL, ec, e->e_version); - assert(msz > 0); - - if (msz * ndx >= d->d_size) { - LIBELF_SET_ERROR(ARGUMENT, 0); - return (0); - } - - if (ec == ELFCLASS32) { - rel32 = (Elf32_Rel *) d->d_buf + ndx; - - LIBELF_COPY_U32(rel32, dr, r_offset); - - if (ELF64_R_SYM(dr->r_info) > ELF32_R_SYM(~0UL) || - ELF64_R_TYPE(dr->r_info) > ELF32_R_TYPE(~0U)) { - LIBELF_SET_ERROR(RANGE, 0); - return (0); - } - rel32->r_info = ELF32_R_INFO(ELF64_R_SYM(dr->r_info), - ELF64_R_TYPE(dr->r_info)); - } else { - rel64 = (Elf64_Rel *) d->d_buf + ndx; - - *rel64 = *dr; - } - - return (1); -} |
