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