mirror of
https://github.com/Atmosphere-NX/Atmosphere.git
synced 2024-09-19 21:43:29 +01:00
46 lines
741 B
C
46 lines
741 B
C
|
/**
|
||
|
|
* @file dynamic.c
|
||
|
|
* @copyright libnx Authors
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stddef.h>
|
||
|
|
#include "../utils/types.h"
|
||
|
|
#include <elf.h>
|
||
|
|
|
||
|
|
void __nx_dynamic(uintptr_t base, const Elf64_Dyn* dyn)
|
||
|
|
{
|
||
|
|
const Elf64_Rela* rela = NULL;
|
||
|
|
u64 relasz = 0;
|
||
|
|
|
||
|
|
for (; dyn->d_tag != DT_NULL; dyn++)
|
||
|
|
{
|
||
|
|
switch (dyn->d_tag)
|
||
|
|
{
|
||
|
|
case DT_RELA:
|
||
|
|
rela = (const Elf64_Rela*)(base + dyn->d_un.d_ptr);
|
||
|
|
break;
|
||
|
|
case DT_RELASZ:
|
||
|
|
relasz = dyn->d_un.d_val / sizeof(Elf64_Rela);
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (rela == NULL) {
|
||
|
|
while(true)
|
||
|
|
;
|
||
|
|
}
|
||
|
|
|
||
|
|
for (; relasz--; rela++)
|
||
|
|
{
|
||
|
|
switch (ELF64_R_TYPE(rela->r_info))
|
||
|
|
{
|
||
|
|
case R_AARCH64_RELATIVE:
|
||
|
|
{
|
||
|
|
u64* ptr = (u64*)(base + rela->r_offset);
|
||
|
|
*ptr = base + rela->r_addend;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|