[libc-commits] [libc] [libc] fortify jmp buffer for x86-64 (PR #112769)

[Nick Desaulniers via libc-commits]

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@@ -0,0 +1,46 @@
+//===-- Implementation header for jmpbuf checksum ---------------*- C++ -*-===//
+//
+// 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
+//
+//===----------------------------------------------------------------------===//
+
+#ifndef LLVM_LIBC_SRC_SETJMP_CHECKSUM_H
+#define LLVM_LIBC_SRC_SETJMP_CHECKSUM_H
+
+#ifndef LIBC_COPT_SETJMP_ENABLE_FORTIFICATION
+#define LIBC_COPT_SETJMP_ENABLE_FORTIFICATION 1
+#endif
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nickdesaulniers wrote:

Will this force checksumming even if `LIBC_CONF_SETJMP_ENABLE_FORTIFICATION` is set to `OFF`?

https://github.com/llvm/llvm-project/pull/112769