utils/sbtools/elf.h

   1 #include <stdio.h>
   2 #include <stdint.h>
   3 #include <string.h>
   4 #include <stdbool.h>
   5 #include <stdlib.h>
   6 #include <unistd.h>
   7
   8 /**
   9  * API
  10  */
  11 enum elf_section_type_t
  12 {
  13     EST_LOAD,
  14     EST_FILL
  15 };
  16
  17 struct elf_section_t
  18 {
  19     uint32_t addr;
  20     uint32_t size;
  21     enum elf_section_type_t type;
  22     /* <union> */
  23     void *section;
  24     uint32_t pattern;
  25     /* </union> */
  26     struct elf_section_t *next;
  27     /* Internal to elf_write_file */
  28     uint32_t offset;
  29 };
  30
  31 struct elf_params_t
  32 {
  33     bool has_start_addr;
  34     uint32_t start_addr;
  35     struct elf_section_t *first_section;
  36     struct elf_section_t *last_section;
  37 };
  38
  39 typedef bool (*elf_read_fn_t)(void *user, uint32_t addr, void *buf, size_t count);
  40 /* write function manages it's own error state */
  41 typedef void (*elf_write_fn_t)(void *user, uint32_t addr, const void *buf, size_t count);
  42 typedef void (*elf_printf_fn_t)(void *user, bool error, const char *fmt, ...);
  43
  44 void elf_init(struct elf_params_t *params);
  45 void elf_add_load_section(struct elf_params_t *params,
  46     uint32_t load_addr, uint32_t size, const void *section);
  47 void elf_add_fill_section(struct elf_params_t *params,
  48     uint32_t fill_addr, uint32_t size, uint32_t pattern);
  49 void elf_write_file(struct elf_params_t *params, elf_write_fn_t write, void *user);
  50 bool elf_read_file(struct elf_params_t *params, elf_read_fn_t read, elf_printf_fn_t printf,
  51     void *user);
  52 bool elf_is_empty(struct elf_params_t *params);
  53 void elf_set_start_addr(struct elf_params_t *params, uint32_t addr);
  54 bool elf_get_start_addr(struct elf_params_t *params, uint32_t *addr);
  55 int elf_get_nr_sections(struct elf_params_t *params);
  56 void elf_release(struct elf_params_t *params);