1 /* SPDX-License-Identifier: BSD-2-Clause */ 2 /* 3 * Copyright (c) 2019, Linaro Limited 4 */ 5 6 #ifndef TA_ELF_H 7 #define TA_ELF_H 8 9 #include <ldelf.h> 10 #include <stdarg.h> 11 #include <sys/queue.h> 12 #include <tee_api_types.h> 13 #include <types_ext.h> 14 15 struct segment { 16 size_t offset; 17 size_t vaddr; 18 size_t filesz; 19 size_t memsz; 20 size_t flags; 21 size_t align; 22 bool remapped_writeable; 23 TAILQ_ENTRY(segment) link; 24 }; 25 26 TAILQ_HEAD(segment_head, segment); 27 28 struct ta_elf { 29 bool is_main; 30 bool is_32bit; /* Initialized from Elf32_Ehdr/Elf64_Ehdr */ 31 bool is_legacy; 32 33 vaddr_t load_addr; 34 vaddr_t max_addr; 35 vaddr_t max_offs; 36 37 vaddr_t ehdr_addr; 38 39 /* Initialized from Elf32_Ehdr/Elf64_Ehdr */ 40 vaddr_t e_entry; 41 vaddr_t e_phoff; 42 vaddr_t e_shoff; 43 unsigned int e_phnum; 44 unsigned int e_shnum; 45 unsigned int e_phentsize; 46 unsigned int e_shentsize; 47 48 void *phdr; 49 void *shdr; 50 /* 51 * dynsymtab and dynstr are used for external symbols, they may hold 52 * other symbols too. 53 */ 54 void *dynsymtab; 55 size_t num_dynsyms; 56 const char *dynstr; 57 size_t dynstr_size; 58 59 /* DT_HASH hash table for faster resolution of external symbols */ 60 void *hashtab; 61 62 struct segment_head segs; 63 64 vaddr_t exidx_start; 65 size_t exidx_size; 66 67 uint32_t handle; 68 69 struct ta_head *head; 70 71 TEE_UUID uuid; 72 TAILQ_ENTRY(ta_elf) link; 73 }; 74 75 TAILQ_HEAD(ta_elf_queue, ta_elf); 76 77 typedef void (*print_func_t)(void *pctx, const char *fmt, va_list ap) 78 __printf(2, 0); 79 80 extern struct ta_elf_queue main_elf_queue; 81 struct ta_elf *ta_elf_find_elf(const TEE_UUID *uuid); 82 83 void ta_elf_load_main(const TEE_UUID *uuid, uint32_t *is_32bit, uint64_t *sp, 84 uint32_t *ta_flags); 85 void ta_elf_finalize_load_main(uint64_t *entry); 86 void ta_elf_load_dependency(struct ta_elf *elf, bool is_32bit); 87 void ta_elf_relocate(struct ta_elf *elf); 88 void ta_elf_finalize_mappings(struct ta_elf *elf); 89 90 void ta_elf_print_mappings(void *pctx, print_func_t print_func, 91 struct ta_elf_queue *elf_queue, size_t num_maps, 92 struct dump_map *maps, vaddr_t mpool_base); 93 94 #ifdef CFG_UNWIND 95 void ta_elf_stack_trace_a32(uint32_t regs[16]); 96 void ta_elf_stack_trace_a64(uint64_t fp, uint64_t sp, uint64_t pc); 97 #else 98 static inline void ta_elf_stack_trace_a32(uint32_t regs[16] __unused) { } 99 static inline void ta_elf_stack_trace_a64(uint64_t fp __unused, 100 uint64_t sp __unused, 101 uint64_t pc __unused) { } 102 #endif /*CFG_UNWIND*/ 103 104 TEE_Result ta_elf_resolve_sym(const char *name, vaddr_t *val, 105 struct ta_elf *elf); 106 TEE_Result ta_elf_add_library(const TEE_UUID *uuid); 107 108 #endif /*TA_ELF_H*/ 109