qemu/thread: Mark qemu_thread_exit() with 'noreturn' attribute

After upgrading to Ubuntu 20.04 LTS, GCC 9.3 complains:

  util/qemu-thread-posix.c: In function ‘qemu_thread_exit’:
  util/qemu-thread-posix.c:577:6: error: function might be candidate for attribute ‘noreturn’ [-Werror=suggest-attribute=noreturn]
    577 | void qemu_thread_exit(void *retval)
        |      ^~~~~~~~~~~~~~~~

Fix by marking the qemu_thread_exit function with QEMU_NORETURN
to set the 'noreturn' attribute.

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/include/qemu/thread.h b/include/qemu/thread.h
index d22848138ea0711b78e7a1c7f5d6884bb7ce8833..06c058fb58b315f3c4f0dd539129871bc4da8e32 100644 (file)
--- a/include/qemu/thread.h
+++ b/include/qemu/thread.h
@@ -177,7 +177,7 @@ void qemu_thread_create(QemuThread *thread, const char *name,
 void *qemu_thread_join(QemuThread *thread);
 void qemu_thread_get_self(QemuThread *thread);
 bool qemu_thread_is_self(QemuThread *thread);
-void qemu_thread_exit(void *retval);
+void qemu_thread_exit(void *retval) QEMU_NORETURN;
 void qemu_thread_naming(bool enable);
 
 struct Notifier;