| 1 | /* |
| 2 | * SPDX-License-Identifier: LGPL-2.1-or-later |
| 3 | * |
| 4 | * Copyright (C) 2015 Antoine Busque <abusque@efficios.com> |
| 5 | */ |
| 6 | |
| 7 | #ifndef _LTTNG_UST_ELF_H |
| 8 | #define _LTTNG_UST_ELF_H |
| 9 | |
| 10 | #include <stdlib.h> |
| 11 | #include <stdint.h> |
| 12 | #include <stdio.h> |
| 13 | |
| 14 | struct lttng_ust_elf_ehdr { |
| 15 | uint16_t e_type; |
| 16 | uint16_t e_machine; |
| 17 | uint32_t e_version; |
| 18 | uint64_t e_entry; |
| 19 | uint64_t e_phoff; |
| 20 | uint64_t e_shoff; |
| 21 | uint32_t e_flags; |
| 22 | uint16_t e_ehsize; |
| 23 | uint16_t e_phentsize; |
| 24 | uint16_t e_phnum; |
| 25 | uint16_t e_shentsize; |
| 26 | uint16_t e_shnum; |
| 27 | uint16_t e_shstrndx; |
| 28 | }; |
| 29 | |
| 30 | struct lttng_ust_elf_phdr { |
| 31 | uint32_t p_type; |
| 32 | uint64_t p_offset; |
| 33 | uint64_t p_filesz; |
| 34 | uint64_t p_memsz; |
| 35 | uint64_t p_align; |
| 36 | uint64_t p_vaddr; |
| 37 | }; |
| 38 | |
| 39 | struct lttng_ust_elf_shdr { |
| 40 | uint32_t sh_name; |
| 41 | uint32_t sh_type; |
| 42 | uint64_t sh_flags; |
| 43 | uint64_t sh_addr; |
| 44 | uint64_t sh_offset; |
| 45 | uint64_t sh_size; |
| 46 | uint32_t sh_link; |
| 47 | uint32_t sh_info; |
| 48 | uint64_t sh_addralign; |
| 49 | uint64_t sh_entsize; |
| 50 | }; |
| 51 | |
| 52 | struct lttng_ust_elf_nhdr { |
| 53 | uint32_t n_namesz; |
| 54 | uint32_t n_descsz; |
| 55 | uint32_t n_type; |
| 56 | }; |
| 57 | |
| 58 | struct lttng_ust_elf { |
| 59 | /* Offset in bytes to start of section names string table. */ |
| 60 | off_t section_names_offset; |
| 61 | /* Size in bytes of section names string table. */ |
| 62 | size_t section_names_size; |
| 63 | char *path; |
| 64 | int fd; |
| 65 | struct lttng_ust_elf_ehdr *ehdr; |
| 66 | uint8_t bitness; |
| 67 | uint8_t endianness; |
| 68 | }; |
| 69 | |
| 70 | struct lttng_ust_elf *lttng_ust_elf_create(const char *path); |
| 71 | void lttng_ust_elf_destroy(struct lttng_ust_elf *elf); |
| 72 | uint8_t lttng_ust_elf_is_pic(struct lttng_ust_elf *elf); |
| 73 | int lttng_ust_elf_get_memsz(struct lttng_ust_elf *elf, uint64_t *memsz); |
| 74 | int lttng_ust_elf_get_build_id(struct lttng_ust_elf *elf, uint8_t **build_id, |
| 75 | size_t *length, int *found); |
| 76 | int lttng_ust_elf_get_debug_link(struct lttng_ust_elf *elf, char **filename, |
| 77 | uint32_t *crc, int *found); |
| 78 | |
| 79 | #endif /* _LTTNG_UST_ELF_H */ |