fix(libs): reject unsupported WebAssembly module unwind queries

core/libs/tests/EmscriptenModuleUnwind.cpp

@@ -0,0 +1,41 @@
+#include "prx/libkernel/include/Api.hpp"
+#include "prx/libkernel/KernelErrors.hpp"
+#include "prx/libSceSysmodule/include/Api.hpp"
+#include <array>
+#include <cstdint>
+#include <cstdlib>
+#include <cstring>
+#include <limits>
+
+namespace {
+
+struct UnsupportedPath {
+    const char* function;
+};
+
+}
+
+extern "C" [[noreturn]] void NotImplemented_nid_no_patch(const char* function) {
+    throw UnsupportedPath{function};
+}
+
+int main() {
+    for (const auto query : {&sceKernelGetModuleInfoForUnwind, &sceSysmoduleGetModuleInfoForUnwind}) {
+        for (const auto address : {std::uint64_t{0}, std::uint64_t{0x10000}, std::numeric_limits<std::uint64_t>::max()}) {
+            for (const int flags : {0, 1, -1}) {
+                ModuleInfoForUnwind info;
+                std::memset(&info, 0xa5, sizeof(info));
+                std::array<unsigned char, sizeof(info)> before;
+                std::memcpy(before.data(), &info, sizeof(info));
+                try {
+                    query(address, flags, &info);
+                    std::abort();
+                } catch (const UnsupportedPath& error) {
+                    if (std::strcmp(error.function, "sceKernelGetModuleInfoForUnwind") != 0 ||
+                        std::memcmp(before.data(), &info, sizeof(info)) != 0) std::abort();
+                }
+            }
+        }
+    }
+    if (sceKernelGetModuleInfoForUnwind(0, 0, nullptr) != SCE_KERNEL_ERROR_EFAULT) std::abort();
+}