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This commit is contained in:
Maschell 2021-09-23 18:30:08 +02:00
parent ba389535a9
commit 57163d6103
8 changed files with 18 additions and 11 deletions
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3
src/ElfUtils.cpp
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@ -22,7 +22,8 @@
#include "ElfUtils.h" #include "ElfUtils.h"
// See https://github.com/decaf-emu/decaf-emu/blob/43366a34e7b55ab9d19b2444aeb0ccd46ac77dea/src/libdecaf/src/cafe/loader/cafe_loader_reloc.cpp#L144 // See https://github.com/decaf-emu/decaf-emu/blob/43366a34e7b55ab9d19b2444aeb0ccd46ac77dea/src/libdecaf/src/cafe/loader/cafe_loader_reloc.cpp#L144
bool ElfUtils::elfLinkOne(char type, size_t offset, int32_t addend, uint32_t destination, uint32_t symbol_addr, relocation_trampolin_entry_t *trampolin_data, uint32_t trampolin_data_length, RelocationType reloc_type) { bool ElfUtils::elfLinkOne(char type, size_t offset, int32_t addend, uint32_t destination, uint32_t symbol_addr, relocation_trampolin_entry_t *trampolin_data, uint32_t trampolin_data_length,
RelocationType reloc_type) {
if (type == R_PPC_NONE) { if (type == R_PPC_NONE) {
return true; return true;
} }

3
src/ElfUtils.h
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@ -59,5 +59,6 @@ extern "C" {
class ElfUtils { class ElfUtils {
public: public:
static bool elfLinkOne(char type, size_t offset, int32_t addend, uint32_t destination, uint32_t symbol_addr, relocation_trampolin_entry_t *trampolin_data, uint32_t trampolin_data_length, RelocationType reloc_type); static bool elfLinkOne(char type, size_t offset, int32_t addend, uint32_t destination, uint32_t symbol_addr, relocation_trampolin_entry_t *trampolin_data, uint32_t trampolin_data_length,
RelocationType reloc_type);
}; };

1
src/common/relocation_defines.h
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@ -16,6 +16,7 @@
****************************************************************************/ ****************************************************************************/
#pragma once #pragma once
#include <cstdint> #include <cstdint>
typedef enum RelocationTrampolinStatus{ typedef enum RelocationTrampolinStatus{

4
src/main.cpp
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@ -181,8 +181,8 @@ int do_start(int argc, char **argv) {
} }
bool doRelocation(const std::vector<RelocationData> &relocData, relocation_trampolin_entry_t *tramp_data, uint32_t tramp_length) { bool doRelocation(const std::vector<RelocationData> &relocData, relocation_trampolin_entry_t *tramp_data, uint32_t tramp_length) {
for (auto const &curReloc : relocData) { for (auto const &curReloc: relocData) {
const RelocationData& cur = curReloc; const RelocationData &cur = curReloc;
std::string functionName = cur.getName(); std::string functionName = cur.getName();
std::string rplName = cur.getImportRPLInformation().getName(); std::string rplName = cur.getImportRPLInformation().getName();
int32_t isData = cur.getImportRPLInformation().isData(); int32_t isData = cur.getImportRPLInformation().isData();

2
src/module/ModuleData.cpp
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@ -20,7 +20,7 @@
std::string ModuleData::toString() const { std::string ModuleData::toString() const {
std::string res = StringTools::strfmt("Entrypoint %08X, bss: %08X (%d), bss: %08X (%d)\n", getEntrypoint(), getBSSAddr(), getBSSSize(), getSBSSAddr(), getSBSSSize()); std::string res = StringTools::strfmt("Entrypoint %08X, bss: %08X (%d), bss: %08X (%d)\n", getEntrypoint(), getBSSAddr(), getBSSSize(), getSBSSAddr(), getSBSSSize());
for (auto const &reloc : relocation_data_list) { for (auto const &reloc: relocation_data_list) {
res += reloc.toString(); res += reloc.toString();
} }
return res; return res;

10
src/module/ModuleDataFactory.cpp
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@ -25,7 +25,8 @@
using namespace ELFIO; using namespace ELFIO;
std::optional<ModuleData> ModuleDataFactory::load(const std::string &path, uint32_t destination_address, uint32_t maximum_size, relocation_trampolin_entry_t *trampolin_data, uint32_t trampolin_data_length) { std::optional<ModuleData>
ModuleDataFactory::load(const std::string &path, uint32_t destination_address, uint32_t maximum_size, relocation_trampolin_entry_t *trampolin_data, uint32_t trampolin_data_length) {
elfio reader; elfio reader;
ModuleData moduleData; ModuleData moduleData;
@ -37,7 +38,7 @@ std::optional<ModuleData> ModuleDataFactory::load(const std::string &path, uint3
uint32_t sec_num = reader.sections.size(); uint32_t sec_num = reader.sections.size();
auto **destinations = (uint8_t **) malloc(sizeof(uint8_t *) * sec_num); auto **destinations = (uint8_t **) malloc(sizeof(uint8_t * ) * sec_num);
uint32_t sizeOfModule = 0; uint32_t sizeOfModule = 0;
for (uint32_t i = 0; i < sec_num; ++i) { for (uint32_t i = 0; i < sec_num; ++i) {
@ -133,7 +134,7 @@ std::optional<ModuleData> ModuleDataFactory::load(const std::string &path, uint3
} }
std::vector<RelocationData> relocationData = getImportRelocationData(reader, destinations); std::vector<RelocationData> relocationData = getImportRelocationData(reader, destinations);
for (auto const &reloc : relocationData) { for (auto const &reloc: relocationData) {
moduleData.addRelocationData(reloc); moduleData.addRelocationData(reloc);
} }
@ -202,7 +203,8 @@ std::vector<RelocationData> ModuleDataFactory::getImportRelocationData(const elf
return result; return result;
} }
bool ModuleDataFactory::linkSection(const elfio &reader, uint32_t section_index, uint32_t destination, uint32_t base_text, uint32_t base_data, relocation_trampolin_entry_t *trampolin_data, uint32_t trampolin_data_length) { bool ModuleDataFactory::linkSection(const elfio &reader, uint32_t section_index, uint32_t destination, uint32_t base_text, uint32_t base_data, relocation_trampolin_entry_t *trampolin_data,
uint32_t trampolin_data_length) {
uint32_t sec_num = reader.sections.size(); uint32_t sec_num = reader.sections.size();
for (uint32_t i = 0; i < sec_num; ++i) { for (uint32_t i = 0; i < sec_num; ++i) {

3
src/module/ModuleDataFactory.h
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@ -28,7 +28,8 @@ class ModuleDataFactory {
public: public:
static std::optional<ModuleData> load(const std::string &path, uint32_t destination_address, uint32_t maximum_size, relocation_trampolin_entry_t *trampolin_data, uint32_t trampolin_data_length); static std::optional<ModuleData> load(const std::string &path, uint32_t destination_address, uint32_t maximum_size, relocation_trampolin_entry_t *trampolin_data, uint32_t trampolin_data_length);
static bool linkSection(const ELFIO::elfio &reader, uint32_t section_index, uint32_t destination, uint32_t base_text, uint32_t base_data, relocation_trampolin_entry_t *trampolin_data, uint32_t trampolin_data_length); static bool linkSection(const ELFIO::elfio &reader, uint32_t section_index, uint32_t destination, uint32_t base_text, uint32_t base_data, relocation_trampolin_entry_t *trampolin_data,
uint32_t trampolin_data_length);
static std::vector<RelocationData> getImportRelocationData(const ELFIO::elfio &reader, uint8_t **destinations); static std::vector<RelocationData> getImportRelocationData(const ELFIO::elfio &reader, uint8_t **destinations);
}; };

3
src/module/RelocationData.cpp
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@ -19,5 +19,6 @@
#include "utils/StringTools.h" #include "utils/StringTools.h"
std::string RelocationData::toString() const { std::string RelocationData::toString() const {
return StringTools::strfmt("%s destination: %08X offset: %08X type: %02X addend: %d rplName: %s isData: %d \n", name.c_str(), destination, offset, type, addend, rplInfo.getName().c_str(), rplInfo.isData()); return StringTools::strfmt("%s destination: %08X offset: %08X type: %02X addend: %d rplName: %s isData: %d \n", name.c_str(), destination, offset, type, addend, rplInfo.getName().c_str(),
rplInfo.isData());
} }