[libc-commits] [libc] [libc][AArch64] Support LFI in setjmp and longjmp (PR #238092)

[Schrodinger ZHU Yifan via libc-commits]

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@@ -32,7 +32,18 @@ namespace LIBC_NAMESPACE_DECL {
   // address at the start of longjmp, because we're not going to use it anyway!
 
   asm(
-      // Reload the callee-saved GPRs, including fp and lr.
+  // Reload the callee-saved GPRs, including fp and lr.
+#ifdef __LFI__
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SchrodingerZhu wrote:

I vote for arch since SGX/LFI also restrict certain microarch instructions.

https://github.com/llvm/llvm-project/pull/238092