buildroot/package/python3/0011-3.13-gh-131675-Fix-mi_atomic_yield-in-mimalloc-on-32.patch

From a9aae012b4ee83f1aba7c122943c63b69c5b9f97 Mon Sep 17 00:00:00 2001
From: "Miss Islington (bot)"
 <31488909+miss-islington@users.noreply.github.com>
Date: Mon, 31 Mar 2025 20:58:29 +0200
Subject: [PATCH] [3.13] gh-131675: Fix `mi_atomic_yield` in mimalloc on 32-bit
 ARM (gh-131784) (gh-131954)

Use the standard `__ARM_ARCH` macro, which is supported by GCC and Clang.

The branching logic for of `__ARMEL__` has been removed so if the target
architecture supports v7+ instructions, a yield is emitted, otherwise a nop
is emitted. This covers both big and little endian scenarios.
(cherry picked from commit 03f6c8e239723637811fd8d278661f5292351197)

Upstream: https://github.com/python/cpython/pull/131954

Signed-off-by: Vincent Fazio <vfazio@gmail.com>
Co-authored-by: Vincent Fazio <vfazio@gmail.com>
Signed-off-by: Vincent Fazio <vfazio@xes-inc.com>
---
 Include/internal/mimalloc/mimalloc/atomic.h     | 17 ++++++++++-------
 ...25-03-27-01-21-50.gh-issue-131675.l2zfOO.rst |  1 +
 2 files changed, 11 insertions(+), 7 deletions(-)
 create mode 100644 Misc/NEWS.d/next/Build/2025-03-27-01-21-50.gh-issue-131675.l2zfOO.rst

diff --git a/Include/internal/mimalloc/mimalloc/atomic.h b/Include/internal/mimalloc/mimalloc/atomic.h
index 1093c540864..a46a7676ad2 100644
--- a/Include/internal/mimalloc/mimalloc/atomic.h
+++ b/Include/internal/mimalloc/mimalloc/atomic.h
@@ -338,8 +338,9 @@ static inline void mi_atomic_yield(void) {
   _mm_pause();
 }
 #elif (defined(__GNUC__) || defined(__clang__)) && \
-      (defined(__x86_64__) || defined(__i386__) || defined(__arm__) || defined(__armel__) || defined(__ARMEL__) || \
-       defined(__aarch64__) || defined(__powerpc__) || defined(__ppc__) || defined(__PPC__)) || defined(__POWERPC__)
+      (defined(__x86_64__) || defined(__i386__) || \
+       defined(__aarch64__) || defined(__arm__) || \
+       defined(__powerpc__) || defined(__ppc__) || defined(__PPC__) || defined(__POWERPC__))
 #if defined(__x86_64__) || defined(__i386__)
 static inline void mi_atomic_yield(void) {
   __asm__ volatile ("pause" ::: "memory");
@@ -348,10 +349,16 @@ static inline void mi_atomic_yield(void) {
 static inline void mi_atomic_yield(void) {
   __asm__ volatile("wfe");
 }
-#elif (defined(__arm__) && __ARM_ARCH__ >= 7)
+#elif defined(__arm__)
+#if __ARM_ARCH >= 7
 static inline void mi_atomic_yield(void) {
   __asm__ volatile("yield" ::: "memory");
 }
+#else
+static inline void mi_atomic_yield(void) {
+  __asm__ volatile ("nop" ::: "memory");
+}
+#endif
 #elif defined(__powerpc__) || defined(__ppc__) || defined(__PPC__) || defined(__POWERPC__)
 #ifdef __APPLE__
 static inline void mi_atomic_yield(void) {
@@ -362,10 +369,6 @@ static inline void mi_atomic_yield(void) {
   __asm__ __volatile__ ("or 27,27,27" ::: "memory");
 }
 #endif
-#elif defined(__armel__) || defined(__ARMEL__)
-static inline void mi_atomic_yield(void) {
-  __asm__ volatile ("nop" ::: "memory");
-}
 #endif
 #elif defined(__sun)
 // Fallback for other archs
diff --git a/Misc/NEWS.d/next/Build/2025-03-27-01-21-50.gh-issue-131675.l2zfOO.rst b/Misc/NEWS.d/next/Build/2025-03-27-01-21-50.gh-issue-131675.l2zfOO.rst
new file mode 100644
index 00000000000..be870a81df1
--- /dev/null
+++ b/Misc/NEWS.d/next/Build/2025-03-27-01-21-50.gh-issue-131675.l2zfOO.rst
@@ -0,0 +1 @@
+Fix mimalloc library builds for 32-bit ARM targets.
-- 
2.34.1