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EnvironmentLoader
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Improve RPL loading when running the environment setup files

This commit is contained in:
Maschell 2023-06-16 17:17:19 +02:00
parent 0c0d73ffa3
commit 5da6afb310
3 changed files with 28 additions and 11 deletions
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25
source/ElfUtils.cpp
View File

@ -3,28 +3,35 @@
#include <coreinit/cache.h>
#include <coreinit/debug.h>
#include <coreinit/dynload.h>
#include <coreinit/memdefaultheap.h>
#include "ElfUtils.h"
#include "elfio/elfio.hpp"
bool ElfUtils::doRelocation(const std::vector<std::unique_ptr<RelocationData>> &relocData, relocation_trampoline_entry_t *tramp_data, uint32_t tramp_length) {
bool ElfUtils::doRelocation(const std::vector<std::unique_ptr<RelocationData>> &relocData, relocation_trampoline_entry_t *tramp_data, uint32_t tramp_length, std::map<std::string, OSDynLoad_Module> &usedRPls) {
for (auto const &curReloc : relocData) {
std::string functionName = curReloc->getName();
std::string rplName = curReloc->getImportRPLInformation()->getRPLName();
int32_t isData = curReloc->getImportRPLInformation()->isData();
OSDynLoad_Module rplHandle = nullptr;
auto err = OSDynLoad_IsModuleLoaded(rplName.c_str(), &rplHandle);
if (err != OS_DYNLOAD_OK || rplHandle == nullptr) {
// only acquire if not already loaded.
OSDynLoad_Acquire(rplName.c_str(), &rplHandle);
if (!usedRPls.contains(rplName)) {
DEBUG_FUNCTION_LINE_VERBOSE("Acquire %s", rplName.c_str());
// Always acquire to increase refcount and make sure it won't get unloaded while we're using it.
OSDynLoad_Error err = OSDynLoad_Acquire(rplName.c_str(), &rplHandle);
if (err != OS_DYNLOAD_OK) {
DEBUG_FUNCTION_LINE_ERR("Failed to acquire %s", rplName.c_str());
return false;
}
// Keep track RPLs we are using.
// They will be released on exit (See: AromaBaseModule)
usedRPls[rplName] = rplHandle;
} else {
DEBUG_FUNCTION_LINE_VERBOSE("Use from usedRPLs cache! %s", rplName.c_str());
}
rplHandle = usedRPls[rplName];
uint32_t functionAddress = 0;
OSDynLoad_FindExport(rplHandle, (OSDynLoad_ExportType) isData, functionName.c_str(), (void **) &functionAddress);
if (functionAddress == 0) {
if ((OSDynLoad_FindExport(rplHandle, (OSDynLoad_ExportType) isData, functionName.c_str(), (void **) &functionAddress) != OS_DYNLOAD_OK) || functionAddress == 0) {
DEBUG_FUNCTION_LINE_ERR("Failed to find export for %s %s %d", functionName.c_str(), rplName.c_str(), isData);
return false;
}

4
source/ElfUtils.h
View File

@ -2,8 +2,10 @@
#include "common/relocation_defines.h"
#include "module/RelocationData.h"
#include <coreinit/dynload.h>
#include <cstdint>
#include <cstdio>
#include <map>
#include <memory>
#include <vector>
@ -50,5 +52,5 @@ public:
RelocationType reloc_type);
static bool doRelocation(const std::vector<std::unique_ptr<RelocationData>> &relocData, relocation_trampoline_entry_t *tramp_data, uint32_t tramp_length);
static bool doRelocation(const std::vector<std::unique_ptr<RelocationData>> &relocData, relocation_trampoline_entry_t *tramp_data, uint32_t tramp_length, std::map<std::string, OSDynLoad_Module> &usedRPls);
};

10
source/main.cpp
View File

@ -180,6 +180,7 @@ int main(int argc, char **argv) {
DirList setupModules(environment_path + "/modules/setup", ".rpx", DirList::Files, 1);
setupModules.SortList();
std::map<std::string, OSDynLoad_Module> usedRPls;
for (int i = 0; i < setupModules.GetFilecount(); i++) {
//! skip hidden linux and mac files
if (setupModules.GetFilename(i)[0] == '.' || setupModules.GetFilename(i)[0] == '_') {
@ -206,7 +207,7 @@ int main(int argc, char **argv) {
continue;
}
DEBUG_FUNCTION_LINE("Loaded module data");
if (!ElfUtils::doRelocation(moduleData.value()->getRelocationDataList(), gModuleData->trampolines, DYN_LINK_TRAMPOLIN_LIST_LENGTH)) {
if (!ElfUtils::doRelocation(moduleData.value()->getRelocationDataList(), gModuleData->trampolines, DYN_LINK_TRAMPOLIN_LIST_LENGTH, usedRPls)) {
DEBUG_FUNCTION_LINE_ERR("Relocations failed");
OSFatal("EnvironmentLoader: Relocations failed");
} else {
@ -223,7 +224,14 @@ int main(int argc, char **argv) {
((int(*)(int, char **)) moduleData.value()->getEntrypoint())(1, arr);
// clang-format on
DEBUG_FUNCTION_LINE("Back from module");
for (auto &rpl : usedRPls) {
DEBUG_FUNCTION_LINE_VERBOSE("Release %s", rpl.first.c_str());
OSDynLoad_Release(rpl.second);
}
usedRPls.clear();
}
} else {
DEBUG_FUNCTION_LINE("Return to Wii U Menu");
ProcUIInit(OSSavesDone_ReadyToRelease);