================
@@ -4924,6 +4924,12 @@ def GetUnsafeStackPtr : Builtin {
let Prototype = "void*()";
}
+def UnsafeSigaltstack : Builtin {
+ let Spellings = ["__builtin_unsafe_sigaltstack"];
----------------
jakos-sec wrote:
Sounds good, I can create a safestack_interface.h in a separate PR.
I removed the builtin from this PR now and would:
1. Merge this PR as is (since it's not really usable for a user right now)
2. Create a PR creating `compiler-rt/include/sanitizer/safestack_interface.h`
(with the existing builtins and `unsafe_sigaltstack()` and update SafeStack.rst
telling people to use safestack_interface.h instead of the builtins.
3. (Optional?) Mark the builtins as deprecated
4. Once the stack of PRs is complete and `unsafe_sigaltstack()` is usable,
adding it to SafeStack.rst and also updating the note that sigaltstack is not
supported.
https://github.com/llvm/llvm-project/pull/196969
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