commit c664b342a47e4b4650706d07e3e40a295e3a4407
author Victor Stinner <vstinner@redhat.com> Sat May 04 11:48:05 2019 -0400
committer GitHub <noreply@github.com> Sat May 04 11:48:05 2019 -0400
tree 960378ef676a7dc621be03f0b7744ce73a0948c0
parent 6b5b013bcc22a27d6231c2796882e44ddb42be67

bpo-36475: Make PyThread_exit_thread with _Py_NO_RETURN (GH-13068)

Python/ceval.c

diff --git a/Python/ceval.c b/Python/ceval.c
index 8ae273e..e616a3f 100644
--- a/Python/ceval.c
+++ b/Python/ceval.c
@@ -211,7 +211,6 @@
     if (_Py_IsFinalizing() && !_Py_CURRENTLY_FINALIZING(tstate)) {
         drop_gil(tstate);
         PyThread_exit_thread();
-        Py_UNREACHABLE();
     }
 }
 

Python/thread_nt.h

diff --git a/Python/thread_nt.h b/Python/thread_nt.h
index fdb192b..5e00c35 100644
--- a/Python/thread_nt.h
+++ b/Python/thread_nt.h
@@ -227,7 +227,7 @@
     return GetCurrentThreadId();
 }
 
-void
+void _Py_NO_RETURN
 PyThread_exit_thread(void)
 {
     dprintf(("%lu: PyThread_exit_thread called\n", PyThread_get_thread_ident()));

Python/thread_pthread.h

diff --git a/Python/thread_pthread.h b/Python/thread_pthread.h
index 25f58d9..1f4f36d 100644
--- a/Python/thread_pthread.h
+++ b/Python/thread_pthread.h
@@ -302,7 +302,7 @@
     return (unsigned long) threadid;
 }
 
-void
+void _Py_NO_RETURN
 PyThread_exit_thread(void)
 {
     dprintf(("PyThread_exit_thread called\n"));