/build/unix/elfhack/inject.c
http://github.com/zpao/v8monkey · C · 71 lines · 27 code · 7 blank · 37 comment · 3 complexity · 7b8bc461a758084d5b829770f20990a2 MD5 · raw file
- /* ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is elfhack.
- *
- * The Initial Developer of the Original Code is
- * Mozilla Foundation.
- * Portions created by the Initial Developer are Copyright (C) 2010
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- * Mike Hommey <mh@glandium.org>
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either the GNU General Public License Version 2 or later (the "GPL"), or
- * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
- #include <stdint.h>
- #include <elf.h>
- /* The Android NDK headers define those */
- #undef Elf_Ehdr
- #undef Elf_Addr
- #if BITS == 32
- #define Elf_Ehdr Elf32_Ehdr
- #define Elf_Addr Elf32_Addr
- #else
- #define Elf_Ehdr Elf64_Ehdr
- #define Elf_Addr Elf64_Addr
- #endif
- extern __attribute__((visibility("hidden"))) void original_init(int argc, char **argv, char **env);
- extern __attribute__((visibility("hidden"))) Elf32_Rel relhack[];
- extern __attribute__((visibility("hidden"))) Elf_Ehdr elf_header;
- void init(int argc, char **argv, char **env)
- {
- Elf32_Rel *rel;
- Elf_Addr *ptr, *start;
- for (rel = relhack; rel->r_offset; rel++) {
- start = (Elf_Addr *)((intptr_t)&elf_header + rel->r_offset);
- for (ptr = start; ptr < &start[rel->r_info]; ptr++)
- *ptr += (intptr_t)&elf_header;
- }
- #ifndef NOINIT
- original_init(argc, argv, env);
- #endif
- }