From d824512059eabbe9d45daeb24d1e2070ad13dd87 Mon Sep 17 00:00:00 2001
From: Donghee Na <donghee.na@python.org>
Date: Tue, 5 Dec 2023 09:03:32 +0000
Subject: [PATCH] gh-112535: Update _Py_ThreadId() to support PowerPC
 (gh-112624)

---
 Include/object.h | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/Include/object.h b/Include/object.h
index 81f777ad21f..dfeb43bda7d 100644
--- a/Include/object.h
+++ b/Include/object.h
@@ -261,6 +261,22 @@ _Py_ThreadId(void)
     __asm__ ("mrs %0, tpidrro_el0" : "=r" (tid));
 #elif defined(__aarch64__)
     __asm__ ("mrs %0, tpidr_el0" : "=r" (tid));
+#elif defined(__powerpc64__)
+    #if defined(__clang__) && _Py__has_builtin(__builtin_thread_pointer)
+    tid = (uintptr_t)__builtin_thread_pointer();
+    #else
+    register uintptr_t tp __asm__ ("r13");
+    __asm__("" : "=r" (tp));
+    tid = tp;
+    #endif
+#elif defined(__powerpc__)
+    #if defined(__clang__) && _Py__has_builtin(__builtin_thread_pointer)
+    tid = (uintptr_t)__builtin_thread_pointer();
+    #else
+    register uintptr_t tp __asm__ ("r2");
+    __asm__ ("" : "=r" (tp));
+    tid = tp;
+    #endif
 #else
   # error "define _Py_ThreadId for this platform"
 #endif