Leahnaya/WiiUPluginLoaderBackend
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Set a custom OSDynLoad Allocator when processing relocations

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This commit is contained in:
Maschell
2022-10-03 21:51:12 +02:00
parent 0a254e59f4
commit 2882635f6f
3 changed files with 41 additions and 3 deletions
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12
source/PluginManagement.cpp
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@@ -52,6 +52,7 @@ bool PluginManagement::doRelocation(const std::vector<std::unique_ptr<Relocation
} else {
//DEBUG_FUNCTION_LINE("Found export for %s %s", rplName.c_str(), functionName.c_str());
}
if (!ElfUtils::elfLinkOne(cur->getType(), cur->getOffset(), cur->getAddend(), (uint32_t) cur->getDestination(), functionAddress, tramp_data, tramp_length, RELOC_TYPE_IMPORT, trampolineID)) {
DEBUG_FUNCTION_LINE_ERR("elfLinkOne failed");
return false;
@@ -73,19 +74,28 @@ bool PluginManagement::doRelocation(const std::vector<std::unique_ptr<Relocation
return true;
}
bool PluginManagement::doRelocations(const std::vector<std::unique_ptr<PluginContainer>> &plugins, relocation_trampoline_entry_t *trampData, uint32_t tramp_size) {
for (uint32_t i = 0; i < tramp_size; i++) {
if (trampData[i].status == RELOC_TRAMP_IMPORT_DONE) {
trampData[i].status = RELOC_TRAMP_FREE;
}
}
OSDynLoadAllocFn prevDynLoadAlloc = nullptr;
OSDynLoadFreeFn prevDynLoadFree = nullptr;
OSDynLoad_GetAllocator(&prevDynLoadAlloc, &prevDynLoadFree);
OSDynLoad_SetAllocator(CustomDynLoadAlloc, CustomDynLoadFree);
for (auto &pluginContainer : plugins) {
DEBUG_FUNCTION_LINE_VERBOSE("Doing relocations for plugin: %s", pluginContainer->getMetaInformation()->getName().c_str());
if (!PluginManagement::doRelocation(pluginContainer->getPluginInformation()->getRelocationDataList(), trampData, tramp_size, pluginContainer->getPluginInformation()->getTrampolineId())) {
return false;
}
}
OSDynLoad_SetAllocator(prevDynLoadAlloc, prevDynLoadFree);
return true;
}