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Diffstat (limited to 'src/libelf/common.h')
| -rw-r--r-- | src/libelf/common.h | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/src/libelf/common.h b/src/libelf/common.h deleted file mode 100644 index 744f1bb8..00000000 --- a/src/libelf/common.h +++ /dev/null @@ -1,163 +0,0 @@ -/* Common definitions for handling files in memory or only on disk. - Copyright (C) 1998, 1999, 2000, 2002, 2005, 2008 Red Hat, Inc. - This file is part of elfutils. - Written 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/>. */ - -#ifndef _COMMON_H -#define _COMMON_H 1 - -#include <ar.h> -#include <byteswap.h> -#include <endian.h> -#include <stdlib.h> -#include <string.h> - -#include "libelfP.h" - -static inline Elf_Kind -__attribute__ ((unused)) -determine_kind (void *buf, size_t len) -{ - /* First test for an archive. */ - if (len >= SARMAG && memcmp (buf, ARMAG, SARMAG) == 0) - return ELF_K_AR; - - /* Next try ELF files. */ - if (len >= EI_NIDENT && memcmp (buf, ELFMAG, SELFMAG) == 0) - { - /* Could be an ELF file. */ - int eclass = (int) ((unsigned char *) buf)[EI_CLASS]; - int data = (int) ((unsigned char *) buf)[EI_DATA]; - int version = (int) ((unsigned char *) buf)[EI_VERSION]; - - if (eclass > ELFCLASSNONE && eclass < ELFCLASSNUM - && data > ELFDATANONE && data < ELFDATANUM - && version > EV_NONE && version < EV_NUM) - return ELF_K_ELF; - } - - /* We do not know this file type. */ - return ELF_K_NONE; -} - - -/* Allocate an Elf descriptor and fill in the generic information. */ -static inline Elf * -__attribute__ ((unused)) -allocate_elf (int fildes, void *map_address, off_t offset, size_t maxsize, - Elf_Cmd cmd, Elf *parent, Elf_Kind kind, size_t extra) -{ - Elf *result = (Elf *) calloc (1, sizeof (Elf) + extra); - if (result == NULL) - __libelf_seterrno (ELF_E_NOMEM); - else - { - result->kind = kind; - result->ref_count = 1; - result->cmd = cmd; - result->fildes = fildes; - result->start_offset = offset; - result->maximum_size = maxsize; - result->map_address = map_address; - result->parent = parent; - - rwlock_init (result->lock); - } - - return result; -} - - -/* Acquire lock for the descriptor and all children. */ -static void -__attribute__ ((unused)) -libelf_acquire_all (Elf *elf) -{ - rwlock_wrlock (elf->lock); - - if (elf->kind == ELF_K_AR) - { - Elf *child = elf->state.ar.children; - - while (child != NULL) - { - if (child->ref_count != 0) - libelf_acquire_all (child); - child = child->next; - } - } -} - -/* Release own lock and those of the children. */ -static void -__attribute__ ((unused)) -libelf_release_all (Elf *elf) -{ - if (elf->kind == ELF_K_AR) - { - Elf *child = elf->state.ar.children; - - while (child != NULL) - { - if (child->ref_count != 0) - libelf_release_all (child); - child = child->next; - } - } - - rwlock_unlock (elf->lock); -} - - -/* Macro to convert endianess in place. It determines the function it - has to use itself. */ -#define CONVERT(Var) \ - (Var) = (sizeof (Var) == 1 \ - ? (unsigned char) (Var) \ - : (sizeof (Var) == 2 \ - ? bswap_16 (Var) \ - : (sizeof (Var) == 4 \ - ? bswap_32 (Var) \ - : bswap_64 (Var)))) - -#define CONVERT_TO(Dst, Var) \ - (Dst) = (sizeof (Var) == 1 \ - ? (unsigned char) (Var) \ - : (sizeof (Var) == 2 \ - ? bswap_16 (Var) \ - : (sizeof (Var) == 4 \ - ? bswap_32 (Var) \ - : bswap_64 (Var)))) - - -#if __BYTE_ORDER == __LITTLE_ENDIAN -# define MY_ELFDATA ELFDATA2LSB -#else -# define MY_ELFDATA ELFDATA2MSB -#endif - -#endif /* common.h */ |