mirror of
https://github.com/Decscots/Lockpick_RCM
synced 2024-11-24 00:29:24 +00:00
85 lines
2 KiB
C
85 lines
2 KiB
C
|
/*
|
||
|
|
* Copyright © 2014, Owen Shepherd
|
||
|
|
*
|
||
|
|
* Permission to use, copy, modify, and/or distribute this software for any
|
||
|
|
* purpose with or without fee is hereby granted, provided that the above
|
||
|
|
* copyright notice appear in all copies.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH
|
||
|
|
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
|
||
|
|
* AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT,
|
||
|
|
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
|
||
|
|
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
|
||
|
|
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
||
|
|
* PERFORMANCE OF THIS SOFTWARE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "elfload.h"
|
||
|
|
|
||
|
|
#if defined(__aarch64__)
|
||
|
|
|
||
|
|
#define R_AARCH64_NONE 0
|
||
|
|
#define R_AARCH64_RELATIVE 1027
|
||
|
|
|
||
|
|
el_status el_applyrela(el_ctx *ctx, Elf_RelA *rel)
|
||
|
|
{
|
||
|
|
uintptr_t *p = (uintptr_t *)(rel->r_offset + ctx->base_load_paddr);
|
||
|
|
uint32_t type = ELF_R_TYPE(rel->r_info);
|
||
|
|
uint32_t sym = ELF_R_SYM(rel->r_info);
|
||
|
|
|
||
|
|
switch (type)
|
||
|
|
{
|
||
|
|
case R_AARCH64_NONE:
|
||
|
|
EL_DEBUG("R_AARCH64_NONE\n");
|
||
|
|
break;
|
||
|
|
case R_AARCH64_RELATIVE:
|
||
|
|
if (sym)
|
||
|
|
{
|
||
|
|
EL_DEBUG("R_AARCH64_RELATIVE with symbol ref!\n");
|
||
|
|
return EL_BADREL;
|
||
|
|
}
|
||
|
|
|
||
|
|
EL_DEBUG("Applying R_AARCH64_RELATIVE reloc @%p\n", p);
|
||
|
|
*p = rel->r_addend + ctx->base_load_vaddr;
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
EL_DEBUG("Bad relocation %u\n", type);
|
||
|
|
return EL_BADREL;
|
||
|
|
}
|
||
|
|
|
||
|
|
return EL_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
el_status el_applyrel(el_ctx *ctx, Elf_Rel *rel)
|
||
|
|
{
|
||
|
|
uintptr_t *p = (uintptr_t *)(rel->r_offset + ctx->base_load_paddr);
|
||
|
|
uint32_t type = ELF_R_TYPE(rel->r_info);
|
||
|
|
uint32_t sym = ELF_R_SYM(rel->r_info);
|
||
|
|
|
||
|
|
switch (type)
|
||
|
|
{
|
||
|
|
case R_AARCH64_NONE:
|
||
|
|
EL_DEBUG("R_AARCH64_NONE\n");
|
||
|
|
break;
|
||
|
|
case R_AARCH64_RELATIVE:
|
||
|
|
if (sym)
|
||
|
|
{
|
||
|
|
EL_DEBUG("R_AARCH64_RELATIVE with symbol ref!\n");
|
||
|
|
return EL_BADREL;
|
||
|
|
}
|
||
|
|
|
||
|
|
EL_DEBUG("Applying R_AARCH64_RELATIVE reloc @%p\n", p);
|
||
|
|
*p += ctx->base_load_vaddr;
|
||
|
|
break;
|
||
|
|
|
||
|
|
default:
|
||
|
|
EL_DEBUG("Bad relocation %u\n", type);
|
||
|
|
return EL_BADREL;
|
||
|
|
}
|
||
|
|
|
||
|
|
return EL_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif
|