diff options
Diffstat (limited to 'src/libelf/elf_readall.c')
| -rw-r--r-- | src/libelf/elf_readall.c | 152 |
1 files changed, 0 insertions, 152 deletions
diff --git a/src/libelf/elf_readall.c b/src/libelf/elf_readall.c deleted file mode 100644 index 01016188..00000000 --- a/src/libelf/elf_readall.c +++ /dev/null @@ -1,152 +0,0 @@ -/* Read all of the file associated with the descriptor. - Copyright (C) 1998-2009 Red Hat, Inc. - This file is part of elfutils. - Contributed by Ulrich Drepper <drepper@redhat.com>, 1998. - - This file is free software; you can redistribute it and/or modify - it under the terms of either - - * the GNU Lesser General Public License as published by the Free - Software Foundation; either version 3 of the License, or (at - your option) any later version - - or - - * the GNU General Public License as published by the Free - Software Foundation; either version 2 of the License, or (at - your option) any later version - - or both in parallel, as here. - - elfutils is distributed in the hope that it will be useful, but - WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - General Public License for more details. - - You should have received copies of the GNU General Public License and - the GNU Lesser General Public License along with this program. If - not, see <http://www.gnu.org/licenses/>. */ - -#ifdef HAVE_CONFIG_H -# include <config.h> -#endif - -#include <errno.h> -#include <unistd.h> -#include <sys/stat.h> - -#include <system.h> -#include "libelfP.h" -#include "common.h" - - -static void -set_address (Elf *elf, size_t offset) -{ - if (elf->kind == ELF_K_AR) - { - Elf *child = elf->state.ar.children; - - while (child != NULL) - { - if (child->map_address == NULL) - { - child->map_address = elf->map_address; - child->start_offset -= offset; - if (child->kind == ELF_K_AR) - child->state.ar.offset -= offset; - - set_address (child, offset); - } - - child = child->next; - } - } -} - - -char * -__libelf_readall (elf) - Elf *elf; -{ - /* Get the file. */ - rwlock_wrlock (elf->lock); - - if (elf->map_address == NULL && unlikely (elf->fildes == -1)) - { - __libelf_seterrno (ELF_E_INVALID_HANDLE); - rwlock_unlock (elf->lock); - return NULL; - } - - /* If the file is not mmap'ed and not previously loaded, do it now. */ - if (elf->map_address == NULL) - { - char *mem = NULL; - - /* If this is an archive and we have derived descriptors get the - locks for all of them. */ - libelf_acquire_all (elf); - - if (elf->maximum_size == ~((size_t) 0)) - { - /* We don't yet know how large the file is. Determine that now. */ - struct stat st; - - if (fstat (elf->fildes, &st) < 0) - goto read_error; - - if (sizeof (size_t) >= sizeof (st.st_size) - || st.st_size <= ~((size_t) 0)) - elf->maximum_size = (size_t) st.st_size; - else - { - errno = EOVERFLOW; - goto read_error; - } - } - - /* Allocate all the memory we need. */ - mem = (char *) malloc (elf->maximum_size); - if (mem != NULL) - { - /* Read the file content. */ - if (unlikely ((size_t) pread_retry (elf->fildes, mem, - elf->maximum_size, - elf->start_offset) - != elf->maximum_size)) - { - /* Something went wrong. */ - read_error: - __libelf_seterrno (ELF_E_READ_ERROR); - free (mem); - } - else - { - /* Remember the address. */ - elf->map_address = mem; - - /* Also remember that we allocated the memory. */ - elf->flags |= ELF_F_MALLOCED; - - /* Propagate the information down to all children and - their children. */ - set_address (elf, elf->start_offset); - - /* Correct the own offsets. */ - if (elf->kind == ELF_K_AR) - elf->state.ar.offset -= elf->start_offset; - elf->start_offset = 0; - } - } - else - __libelf_seterrno (ELF_E_NOMEM); - - /* Free the locks on the children. */ - libelf_release_all (elf); - } - - rwlock_unlock (elf->lock); - - return (char *) elf->map_address; -} |