[llvm-branch-commits] [libcxx] Prepare libcxx and libcxxabi for pointer field protection. (PR #151651)

[Peter Collingbourne via llvm-branch-commits]

================
@@ -484,8 +484,21 @@ typedef __char32_t char32_t;
 #    define _LIBCPP_EXCEPTIONS_SIG e
 #  endif
 
+#  if !_LIBCPP_HAS_EXCEPTIONS
+#    define _LIBCPP_EXCEPTIONS_SIG n
+#  else
+#    define _LIBCPP_EXCEPTIONS_SIG e
+#  endif
+
+#  if defined(__POINTER_FIELD_PROTECTION__)
+#    define _LIBCPP_PFP_SIG p
+#  else
+#    define _LIBCPP_PFP_SIG
+#  endif
----------------
pcc wrote:

Okay, I removed this logic and added CMake logic to modify the namespace name if PFP is enabled.

https://github.com/llvm/llvm-project/pull/151651