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WUMSLoader
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Check the module order again before using it.

This commit is contained in:
Maschell 2023-01-03 22:37:06 +01:00
parent 0031dbebbe
commit 49ca0b803f
1 changed files with 34 additions and 0 deletions
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34
wumsloader/src/entry.cpp
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@ -19,6 +19,7 @@
void CallInitHooksForModule(const std::shared_ptr<ModuleData> &curModule);
bool CheckModulesByDependencies(const std::vector<std::shared_ptr<ModuleData>> &loadedModules);
std::vector<std::shared_ptr<ModuleData>> OrderModulesByDependencies(const std::vector<std::shared_ptr<ModuleData>> &loadedModules);
// We need to wrap it to make sure the main function is called AFTER our code.
@ -170,6 +171,11 @@ void doStart(int argc, char **argv) {
}
}
// Check if dependencies are still resolved.
if (!CheckModulesByDependencies(gLoadedModules)) {
OSFatal("Module order is impossible");
}
#ifdef VERBOSE_DEBUG
DEBUG_FUNCTION_LINE_VERBOSE("Final order of modules");
for (auto &curModule : gLoadedModules) {
@ -220,6 +226,34 @@ void CallInitHooksForModule(const std::shared_ptr<ModuleData> &curModule) {
CallHook(curModule, WUMS_HOOK_INIT);
}
bool CheckModulesByDependencies(const std::vector<std::shared_ptr<ModuleData>> &loadedModules) {
std::set<std::string> loaderModuleNames;
for (auto const &curModule : loadedModules) {
DEBUG_FUNCTION_LINE_VERBOSE("Check if we can load %s", curModule->getExportName().c_str());
std::set<std::string> importsFromOtherModules;
for (const auto &curReloc : curModule->getRelocationDataList()) {
std::string curRPL = curReloc->getImportRPLInformation()->getRPLName();
if (curRPL == "homebrew_wupsbackend") {
OSFatal("Error: module depends on homebrew_wupsbackend, this is not supported");
}
if (curRPL.starts_with("homebrew")) {
importsFromOtherModules.insert(curRPL);
}
}
for (auto &curRPL : importsFromOtherModules) {
if (!loaderModuleNames.contains(curRPL)) {
DEBUG_FUNCTION_LINE_VERBOSE("%s requires %s which is not loaded yet", curModule->getExportName().c_str(), curRPL.c_str());
return false;
} else {
DEBUG_FUNCTION_LINE_VERBOSE("Used %s, but it's already loaded", curRPL.c_str());
}
}
loaderModuleNames.insert(curModule->getExportName());
}
return true;
}
std::vector<std::shared_ptr<ModuleData>> OrderModulesByDependencies(const std::vector<std::shared_ptr<ModuleData>> &loadedModules) {
std::vector<std::shared_ptr<ModuleData>> finalOrder;
std::vector<std::string_view> loadedModulesExportNames;