Kernel: Process::send_signal() should prefer main thread

The main/first thread in a process always has the same TID as the PID.

1 files changed, 5 insertions, 2 deletions

diff --git a/Kernel/Process.cpp b/Kernel/Process.cpp
index 855e1fb160..431d0d21d8 100644
--- a/Kernel/Process.cpp
+++ b/Kernel/Process.cpp
@@ -3222,8 +3222,11 @@ void Process::terminate_due_to_signal(u8 signal)
 
 void Process::send_signal(u8 signal, Process* sender)
 {
-    // FIXME(Thread): Find the appropriate thread to deliver the signal to.
-    any_thread().send_signal(signal, sender);
+    InterruptDisabler disabler;
+    auto* thread = Thread::from_tid(m_pid);
+    if (!thread)
+        thread = &any_thread();
+    thread->send_signal(signal, sender);
 }
 
 int Process::sys$create_thread(void* (*entry)(void*), void* argument, const Syscall::SC_create_thread_params* params)