51 lines
1.5 KiB
C
51 lines
1.5 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2006-2018, RT-Thread Development Team
|
||
|
|
*
|
||
|
|
* SPDX-License-Identifier: Apache-2.0
|
||
|
|
*
|
||
|
|
* Change Logs:
|
||
|
|
* Date Author Notes
|
||
|
|
* 2018/09/15 parai first version
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "../dlmodule.h"
|
||
|
|
#include "../dlelf.h"
|
||
|
|
|
||
|
|
#ifdef __i386__
|
||
|
|
|
||
|
|
#define R_X86_64_GLOB_DAT 6 /* Create GOT entry */
|
||
|
|
#define R_X86_64_JUMP_SLOT 7 /* Create PLT entry */
|
||
|
|
#define R_X86_64_RELATIVE 8 /* Adjust by program base */
|
||
|
|
int dlmodule_relocate(struct rt_dlmodule *module, Elf32_Rel *rel, Elf32_Addr sym_val)
|
||
|
|
{
|
||
|
|
Elf32_Addr *where, tmp;
|
||
|
|
Elf32_Sword addend, offset;
|
||
|
|
rt_uint32_t upper, lower, sign, j1, j2;
|
||
|
|
|
||
|
|
where = (Elf32_Addr *)((rt_uint8_t *)module->mem_space
|
||
|
|
+ rel->r_offset
|
||
|
|
- module->vstart_addr);
|
||
|
|
|
||
|
|
switch (ELF32_R_TYPE(rel->r_info))
|
||
|
|
{
|
||
|
|
case R_X86_64_GLOB_DAT:
|
||
|
|
case R_X86_64_JUMP_SLOT:
|
||
|
|
*where = (Elf32_Addr)sym_val;
|
||
|
|
|
||
|
|
RT_DEBUG_LOG(RT_DEBUG_MODULE, ("R_X86_64_JUMP_SLOT: 0x%x -> 0x%x 0x%x\n",
|
||
|
|
(uint32_t)where, *where, sym_val));
|
||
|
|
break;
|
||
|
|
case R_X86_64_RELATIVE:
|
||
|
|
*where = (Elf32_Addr)sym_val + *where;
|
||
|
|
RT_DEBUG_LOG(RT_DEBUG_MODULE, ("R_X86_64_RELATIVE: 0x%x -> 0x%x 0x%x\n",
|
||
|
|
(uint32_t)where, *where, sym_val));
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
RT_DEBUG_LOG(RT_DEBUG_MODULE, ("X86ELF: invalid relocate TYPE %d\n", ELF32_R_TYPE(rel->r_info)));
|
||
|
|
return -1;
|
||
|
|
}
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
#endif
|