[libcxx-commits] [libcxx] [libc++] Properly implement array cookies in the ARM ABI (PR #160182)

[Louis Dionne via libcxx-commits]

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@@ -32,6 +32,8 @@
 #else
 #  if defined(_WIN32) && defined(_MSC_VER)
 #    define _LIBCPP_ABI_MICROSOFT
+#  elif defined(__arm__) || defined(__aarch64__)
+#    define _LIBCPP_ABI_ARM
----------------
ldionne wrote:

The best I found was https://developer.apple.com/documentation/xcode/writing-arm64-code-for-apple-platforms#Handle-C++-differences.

Also relevant: https://github.com/llvm/llvm-project/blob/bdef80f7a9a1f563f7d2f528e12bb3321d836857/clang/lib/CodeGen/ItaniumCXXABI.cpp#L581-L583

https://github.com/llvm/llvm-project/blob/aed53d19f9f4a6db4210e50712b96d4881d83774/clang/lib/CodeGen/ItaniumCXXABI.cpp#L2561

https://github.com/llvm/llvm-project/blob/bdef80f7a9a1f563f7d2f528e12bb3321d836857/clang/lib/CodeGen/ItaniumCXXABI.cpp#L2588-L2595


https://github.com/llvm/llvm-project/pull/160182