mirror of
https://github.com/ByteWelder/Tactility.git
synced 2026-06-19 12:25:05 +00:00
114 lines
3.2 KiB
C
114 lines
3.2 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2023-2024 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#include <assert.h>
|
|
#include <sys/errno.h>
|
|
#include "esp_elf.h"
|
|
#include "esp_log.h"
|
|
#include "private/elf_platform.h"
|
|
|
|
/** @brief Xtensa relocations defined by the ABIs */
|
|
|
|
#define R_XTENSA_NONE 0
|
|
#define R_XTENSA_32 1
|
|
#define R_XTENSA_RTLD 2
|
|
#define R_XTENSA_GLOB_DAT 3
|
|
#define R_XTENSA_JMP_SLOT 4
|
|
#define R_XTENSA_RELATIVE 5
|
|
#define R_XTENSA_PLT 6
|
|
#define R_XTENSA_OP0 8
|
|
#define R_XTENSA_OP1 9
|
|
#define R_XTENSA_OP2 10
|
|
#define R_XTENSA_ASM_EXPAND 11
|
|
#define R_XTENSA_ASM_SIMPLIFY 12
|
|
#define R_XTENSA_GNU_VTINHERIT 15
|
|
#define R_XTENSA_GNU_VTENTRY 16
|
|
#define R_XTENSA_DIFF8 17
|
|
#define R_XTENSA_DIFF16 18
|
|
#define R_XTENSA_DIFF32 19
|
|
#define R_XTENSA_SLOT0_OP 20
|
|
#define R_XTENSA_SLOT1_OP 21
|
|
#define R_XTENSA_SLOT2_OP 22
|
|
#define R_XTENSA_SLOT3_OP 23
|
|
#define R_XTENSA_SLOT4_OP 24
|
|
#define R_XTENSA_SLOT5_OP 25
|
|
#define R_XTENSA_SLOT6_OP 26
|
|
#define R_XTENSA_SLOT7_OP 27
|
|
#define R_XTENSA_SLOT8_OP 28
|
|
#define R_XTENSA_SLOT9_OP 29
|
|
#define R_XTENSA_SLOT10_OP 30
|
|
#define R_XTENSA_SLOT11_OP 31
|
|
#define R_XTENSA_SLOT12_OP 32
|
|
#define R_XTENSA_SLOT13_OP 33
|
|
#define R_XTENSA_SLOT14_OP 34
|
|
#define R_XTENSA_SLOT0_ALT 35
|
|
#define R_XTENSA_SLOT1_ALT 36
|
|
#define R_XTENSA_SLOT2_ALT 37
|
|
#define R_XTENSA_SLOT3_ALT 38
|
|
#define R_XTENSA_SLOT4_ALT 39
|
|
#define R_XTENSA_SLOT5_ALT 40
|
|
#define R_XTENSA_SLOT6_ALT 41
|
|
#define R_XTENSA_SLOT7_ALT 42
|
|
#define R_XTENSA_SLOT8_ALT 43
|
|
#define R_XTENSA_SLOT9_ALT 44
|
|
#define R_XTENSA_SLOT10_ALT 45
|
|
#define R_XTENSA_SLOT11_ALT 46
|
|
#define R_XTENSA_SLOT12_ALT 47
|
|
#define R_XTENSA_SLOT13_ALT 48
|
|
#define R_XTENSA_SLOT14_ALT 49
|
|
|
|
static const char *TAG = "elf_arch";
|
|
|
|
/**
|
|
* @brief Relocates target architecture symbol of ELF
|
|
*
|
|
* @param elf - ELF object pointer
|
|
* @param rela - Relocated symbol data
|
|
* @param sym - ELF symbol table
|
|
* @param addr - Jumping target address
|
|
*
|
|
* @return ESP_OK if success or other if failed.
|
|
*/
|
|
int esp_elf_arch_relocate(esp_elf_t *elf, const elf32_rela_t *rela,
|
|
const elf32_sym_t *sym, uint32_t addr)
|
|
{
|
|
uint32_t val;
|
|
uint32_t *where;
|
|
|
|
assert(elf && rela);
|
|
|
|
where = (uint32_t *)esp_elf_map_sym(elf, rela->offset);
|
|
|
|
ESP_LOGD(TAG, "type: %d, where=%p addr=0x%x offset=0x%x\n",
|
|
ELF_R_TYPE(rela->info), where, (int)addr, (int)rela->offset);
|
|
|
|
switch (ELF_R_TYPE(rela->info)) {
|
|
case R_XTENSA_RELATIVE:
|
|
val = esp_elf_map_sym(elf, *where);
|
|
#ifdef CONFIG_ELF_LOADER_CACHE_OFFSET
|
|
*where = elf_remap_text(elf, val);
|
|
#else
|
|
*where = val;
|
|
#endif
|
|
break;
|
|
case R_XTENSA_RTLD:
|
|
break;
|
|
case R_XTENSA_GLOB_DAT:
|
|
case R_XTENSA_JMP_SLOT:
|
|
#ifdef CONFIG_ELF_LOADER_CACHE_OFFSET
|
|
*where = elf_remap_text(elf, addr);
|
|
#else
|
|
*where = addr;
|
|
#endif
|
|
break;
|
|
default:
|
|
ESP_LOGE(TAG, "info=%d is not supported", ELF_R_TYPE(rela->info));
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|