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