add temp dirs to the search path

Author: altalk23

loader/src/platform/windows/crashlog.cpp

@@ -23,6 +23,7 @@ using namespace geode::prelude;
 
 static bool g_lastLaunchCrashed = false;
 static bool g_symbolsInitialized = false;
+static std::string g_unzippedSearchPaths;
 
 static std::string getDateString(bool filesafe) {
     auto const now = std::time(nullptr);
@@ -478,6 +479,15 @@ static void handleException(LPEXCEPTION_POINTERS info) {
         if (!g_symbolsInitialized) {
             log::warn("Failed to initialize debug symbols: Error {}", GetLastError());
         }
+        else {
+            // set the search path to include the mods' temp directories
+            if (std::array<char, 4096> searchPathBuffer; 
+                SymGetSearchPath(static_cast<HMODULE>(GetCurrentProcess()), searchPathBuffer.data(), searchPathBuffer.size())) {
+                std::string searchPath(searchPathBuffer.data());
+                searchPath += ";" + g_unzippedSearchPaths;
+                SymSetSearchPath(static_cast<HMODULE>(GetCurrentProcess()), searchPath.c_str());
+            }
+        }
 
         // in some cases, we can be pretty certain that the first mod found while unwinding
         // is the one that caused the crash, so using `suspectedFaultyMod` is safe and correct.
@@ -521,6 +531,11 @@ static LONG WINAPI exceptionHandler(LPEXCEPTION_POINTERS info) {
 bool crashlog::setupPlatformHandler() {
     SetUnhandledExceptionFilter(exceptionHandler);
 
+    g_unzippedSearchPaths.clear();
+    for (auto& mod : Loader::get()->getAllMods()) {
+        g_unzippedSearchPaths += mod->getTempDir().string() + ";";
+    }
+
     auto lastCrashedFile = crashlog::getCrashLogDirectory() / "last-crashed";
     if (std::filesystem::exists(lastCrashedFile)) {
         g_lastLaunchCrashed = true;