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Merge pull request #8426 from liamwhite/elf

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common: consolidate ELF structure definitions
This commit is contained in:
bunnei 2022-06-05 16:52:06 -07:00 • committed by GitHub
commit c33c9c76bf
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5 changed files with 371 additions and 263 deletions
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32
src/core/hle/service/jit/jit_context.cpp
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@ -11,10 +11,13 @@
#include "common/alignment.h"
#include "common/common_funcs.h"
#include "common/div_ceil.h"
#include "common/elf.h"
#include "common/logging/log.h"
#include "core/hle/service/jit/jit_context.h"
#include "core/memory.h"
using namespace Common::ELF;
namespace Service::JIT {
constexpr std::array<u8, 8> SVC0_ARM64 = {
@ -26,25 +29,6 @@ constexpr std::array HELPER_FUNCTIONS{
"_stop", "_resolve", "_panic", "memcpy", "memmove", "memset",
};
struct Elf64_Dyn {
u64 d_tag;
u64 d_un;
};
struct Elf64_Rela {
u64 r_offset;
u64 r_info;
s64 r_addend;
};
static constexpr u32 Elf64_RelaType(const Elf64_Rela* rela) {
return static_cast<u32>(rela->r_info);
}
constexpr int DT_RELA = 7; /* Address of Rela relocs */
constexpr int DT_RELASZ = 8; /* Total size of Rela relocs */
constexpr int R_AARCH64_RELATIVE = 1027; /* Adjust by program base. */
constexpr size_t STACK_ALIGN = 16;
class JITContextImpl;
@ -206,17 +190,17 @@ public:
if (!dyn.d_tag) {
break;
}
if (dyn.d_tag == DT_RELA) {
rela_dyn = dyn.d_un;
if (dyn.d_tag == ElfDtRela) {
rela_dyn = dyn.d_un.d_ptr;
}
if (dyn.d_tag == DT_RELASZ) {
num_rela = dyn.d_un / sizeof(Elf64_Rela);
if (dyn.d_tag == ElfDtRelasz) {
num_rela = dyn.d_un.d_val / sizeof(Elf64_Rela);
}
}
for (size_t i = 0; i < num_rela; i++) {
const auto rela{callbacks->ReadMemory<Elf64_Rela>(rela_dyn + i * sizeof(Elf64_Rela))};
if (Elf64_RelaType(&rela) != R_AARCH64_RELATIVE) {
if (Elf64RelType(rela.r_info) != ElfAArch64Relative) {
continue;
}
const VAddr contents{callbacks->MemoryRead64(rela.r_offset)};