[all-commits] [llvm/llvm-project] 9d0327: [ASan][libc++] Turn off SSO annotations for Apple ...

[Tacet via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 9d03275550d33636a066f84ee3aab81ad1339637
      https://github.com/llvm/llvm-project/commit/9d03275550d33636a066f84ee3aab81ad1339637
  Author: Tacet <4922191+AdvenamTacet at users.noreply.github.com>
  Date:   2024-07-19 (Fri, 19 Jul 2024)

  Changed paths:
    M libcxx/include/string

  Log Message:
  -----------
  [ASan][libc++] Turn off SSO annotations for Apple platforms (#96269)

This commit disables short string AddressSanitizer annotations on Apple
platforms as a temporary solution to the problem reported in #96099.

For more information on Apple's block implementation, please refer to
clang/docs/Block-ABI-Apple.rst [1]. The core issue lies in the fact
that blocks are unaware of their content, causing AddressSanitizer
errors when blocks are moved using `memmove`.

I believe - and I'm not alone - that the issue should ideally be
addressed within the block moving logic. However, this patch provides
a temporary fix until a proper resolution exists in the Blocks runtime.

[1]: https://github.com/llvm/llvm-project/blob/main/clang/docs/Block-ABI-Apple.rst



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