diff options
Diffstat (limited to 'linkers/elftoolchain/libelf/libelf_phdr.c')
| -rw-r--r-- | linkers/elftoolchain/libelf/libelf_phdr.c | 156 |
1 files changed, 0 insertions, 156 deletions
diff --git a/linkers/elftoolchain/libelf/libelf_phdr.c b/linkers/elftoolchain/libelf/libelf_phdr.c deleted file mode 100644 index 5a5bb5f..0000000 --- a/linkers/elftoolchain/libelf/libelf_phdr.c +++ /dev/null @@ -1,156 +0,0 @@ -/*- - * 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 <assert.h> -#include <gelf.h> -#include <libelf.h> -#include <stdlib.h> - -#include "_libelf.h" - -LIBELF_VCSID("$Id: libelf_phdr.c 1677 2011-07-28 04:35:53Z jkoshy $"); - -void * -_libelf_getphdr(Elf *e, int ec) -{ - size_t phnum, phentsize; - size_t fsz, msz; - uint64_t phoff; - Elf32_Ehdr *eh32; - Elf64_Ehdr *eh64; - void *ehdr, *phdr; - int (*xlator)(char *_d, size_t _dsz, char *_s, size_t _c, int _swap); - - assert(ec == ELFCLASS32 || ec == ELFCLASS64); - - if (e == NULL) { - LIBELF_SET_ERROR(ARGUMENT, 0); - return (NULL); - } - - if ((phdr = (ec == ELFCLASS32 ? - (void *) e->e_u.e_elf.e_phdr.e_phdr32 : - (void *) e->e_u.e_elf.e_phdr.e_phdr64)) != NULL) - return (phdr); - - /* - * Check the PHDR related fields in the EHDR for sanity. - */ - - if ((ehdr = _libelf_ehdr(e, ec, 0)) == NULL) - return (NULL); - - phnum = e->e_u.e_elf.e_nphdr; - - if (ec == ELFCLASS32) { - eh32 = (Elf32_Ehdr *) ehdr; - phentsize = eh32->e_phentsize; - phoff = (uint64_t) eh32->e_phoff; - } else { - eh64 = (Elf64_Ehdr *) ehdr; - phentsize = eh64->e_phentsize; - phoff = (uint64_t) eh64->e_phoff; - } - - fsz = gelf_fsize(e, ELF_T_PHDR, phnum, e->e_version); - - assert(fsz > 0); - - if ((uint64_t) e->e_rawsize < (phoff + fsz)) { - LIBELF_SET_ERROR(HEADER, 0); - return (NULL); - } - - msz = _libelf_msize(ELF_T_PHDR, ec, EV_CURRENT); - - assert(msz > 0); - - if ((phdr = calloc(phnum, msz)) == NULL) { - LIBELF_SET_ERROR(RESOURCE, 0); - return (NULL); - } - - if (ec == ELFCLASS32) - e->e_u.e_elf.e_phdr.e_phdr32 = phdr; - else - e->e_u.e_elf.e_phdr.e_phdr64 = phdr; - - - xlator = _libelf_get_translator(ELF_T_PHDR, ELF_TOMEMORY, ec); - (*xlator)(phdr, phnum * msz, e->e_rawfile + phoff, phnum, - e->e_byteorder != LIBELF_PRIVATE(byteorder)); - - return (phdr); -} - -void * -_libelf_newphdr(Elf *e, int ec, size_t count) -{ - void *ehdr, *newphdr, *oldphdr; - size_t msz; - - if (e == NULL) { - LIBELF_SET_ERROR(ARGUMENT, 0); - return (NULL); - } - - if ((ehdr = _libelf_ehdr(e, ec, 0)) == NULL) { - LIBELF_SET_ERROR(SEQUENCE, 0); - return (NULL); - } - - assert(e->e_class == ec); - assert(ec == ELFCLASS32 || ec == ELFCLASS64); - assert(e->e_version == EV_CURRENT); - - msz = _libelf_msize(ELF_T_PHDR, ec, e->e_version); - - assert(msz > 0); - - newphdr = NULL; - if (count > 0 && (newphdr = calloc(count, msz)) == NULL) { - LIBELF_SET_ERROR(RESOURCE, 0); - return (NULL); - } - - if (ec == ELFCLASS32) { - if ((oldphdr = (void *) e->e_u.e_elf.e_phdr.e_phdr32) != NULL) - free(oldphdr); - e->e_u.e_elf.e_phdr.e_phdr32 = (Elf32_Phdr *) newphdr; - } else { - if ((oldphdr = (void *) e->e_u.e_elf.e_phdr.e_phdr64) != NULL) - free(oldphdr); - e->e_u.e_elf.e_phdr.e_phdr64 = (Elf64_Phdr *) newphdr; - } - - e->e_u.e_elf.e_nphdr = count; - - elf_flagphdr(e, ELF_C_SET, ELF_F_DIRTY); - - return (newphdr); -} |