kernel: Skip end callbacks ín exit_delete_all_threads

Wake up threads blocked on `status_cond` or `signal` so that they can
process the `to_do = ThreadToDo::Remove`.

vita3k/kernel/src/kernel.cpp

@@ -168,9 +168,9 @@ Ptr<Ptr<void>> KernelState::get_thread_tls_addr(MemState &mem, SceUID thread_id,
 
 void KernelState::exit_delete_all_threads() {
     const std::lock_guard<std::mutex> lock(mutex);
-    for (auto &[_, thread] : threads) {
-        thread->exit_delete();
-    }
+    for (auto &[_, thread] : threads)
+        // Skip end callbacks; running guest code can access torn-down state
+        thread->exit_delete(false);
 }
 
 void KernelState::pause_threads() {

vita3k/kernel/src/thread.cpp

@@ -182,6 +182,13 @@ void ThreadState::exit_delete(bool exit) {
     } else {
         stop(*cpu);
     }
+
+    // Wake if thread waiting on status_cond
+    if (status == ThreadStatus::wait)
+        update_status(ThreadStatus::run);
+
+    // Wake if thread waiting on sceKernelWaitSignal
+    signal.send();
 }
 
 bool ThreadState::run_loop() {