[libc-commits] [libc] [libc][arm] implement a basic setjmp/longjmp (PR #93220)

[Schrodinger ZHU Yifan via libc-commits]

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@@ -0,0 +1,59 @@
+//===-- Implementation of setjmp ------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+#include "src/__support/common.h"
+#include "src/setjmp/setjmp_impl.h"
+
+namespace LIBC_NAMESPACE {
+
+#if defined(__thumb__) && __ARM_ARCH_ISA_THUMB == 1
+
+[[gnu::naked, gnu::target("thumb")]]
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SchrodingerZhu wrote:

just curious, does `arm/aarch64` also support multi-versioned symbols?

https://github.com/llvm/llvm-project/pull/93220