| /* |
| * Copyright (C) 2014 Google, Inc. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program 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 a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA, 02110-1301 USA |
| */ |
| |
| #ifndef ELFPARSING_H |
| #define ELFPARSING_H |
| |
| #include "elf.h" |
| #include "common.h" |
| |
| struct parsed_elf { |
| Elf64_Ehdr ehdr; |
| Elf64_Phdr *phdr; |
| Elf64_Shdr *shdr; |
| /* |
| * The relocs array contains pointers to arrays of relocation |
| * structures. Each index into the relocs array corresponds to its |
| * corresponding section index. i.e. if a section i is of type SHT_REL |
| * or SHT_RELA then the corresponding index into the relocs array will |
| * contain the associated relocations. Otherwise thee entry will be |
| * NULL. |
| */ |
| Elf64_Rela **relocs; |
| /* |
| * Similarly to the relocs array the strtabs array consists of an |
| * array of pointers where each entry represents a potential struct |
| * buffer pointer. Only setions of type SHT_STRTAB will have a non-NULL |
| * entry. |
| */ |
| struct buffer **strtabs; |
| /* Parsed symbols. */ |
| Elf64_Sym *syms; |
| }; |
| |
| #define ELF_PARSE_PHDR (1 << 0) |
| #define ELF_PARSE_SHDR (1 << 1) |
| #define ELF_PARSE_RELOC (1 << 2) |
| #define ELF_PARSE_STRTAB (1 << 3) |
| #define ELF_PARSE_SYMTAB (1 << 4) |
| |
| #define ELF_PARSE_ALL (-1) |
| |
| /* |
| * Parse an ELF file contained within provide struct buffer. The ELF header |
| * is always parsed while the flags value containing the ELF_PARSE_* values |
| * determine if other parts of the ELF file will be parsed as well. |
| * Returns 0 on success, < 0 error. |
| */ |
| int parse_elf(const struct buffer *pinput, struct parsed_elf *pelf, int flags); |
| |
| /* |
| * Clean up memory associated with parsed_elf. |
| */ |
| void parsed_elf_destroy(struct parsed_elf *pelf); |
| |
| |
| int |
| elf_headers(const struct buffer *pinput, |
| uint32_t arch, |
| Elf64_Ehdr *ehdr, |
| Elf64_Phdr **pphdr, |
| Elf64_Shdr **pshdr); |
| |
| #endif /* ELFPARSING_H */ |