[all-commits] [llvm/llvm-project] 4a39d0: [libc++] Fix filesystem::remove_all() on FreeBSD (...

[Mark Johnston via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 4a39d08908942b2d415db405844cbe4af73e75d4
      https://github.com/llvm/llvm-project/commit/4a39d08908942b2d415db405844cbe4af73e75d4
  Author: Mark Johnston <markjdb at gmail.com>
  Date:   2024-01-29 (Mon, 29 Jan 2024)

  Changed paths:
    M libcxx/src/filesystem/operations.cpp
    M libcxx/test/std/input.output/filesystems/fs.op.funcs/fs.op.remove_all/remove_all.pass.cpp

  Log Message:
  -----------
  [libc++] Fix filesystem::remove_all() on FreeBSD (#79540)

remove_all_impl() opens the target path with O_NOFOLLOW, which fails if
the target is a symbolic link. On FreeBSD, rather than returning ELOOP,
openat() returns EMLINK. This is unlikely to change for compatibility
reasons, see https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=214633 .

Thus, check for EMLINK as well.