[all-commits] [llvm/llvm-project] 3fb55b: [libc] Add <sys/un.h> header. (#182622)

[Alexey Samsonov via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 3fb55b6872c1534fb965bd758d3a6f4d5abf495d
      https://github.com/llvm/llvm-project/commit/3fb55b6872c1534fb965bd758d3a6f4d5abf495d
  Author: Alexey Samsonov <vonosmas at gmail.com>
  Date:   2026-03-08 (Sun, 08 Mar 2026)

  Changed paths:
    M libc/config/linux/aarch64/headers.txt
    M libc/config/linux/x86_64/headers.txt
    M libc/hdr/CMakeLists.txt
    A libc/hdr/sys_socket_macros.h
    M libc/hdr/types/CMakeLists.txt
    A libc/hdr/types/struct_sockaddr_un.h
    M libc/include/CMakeLists.txt
    M libc/include/sys/socket.yaml
    A libc/include/sys/un.yaml
    M libc/test/src/sys/socket/linux/CMakeLists.txt
    M libc/test/src/sys/socket/linux/bind_test.cpp

  Log Message:
  -----------
  [libc] Add <sys/un.h> header. (#182622)

`sockaddr_un` structure is supposed to be provided by the `<sys/un.h>`
header. Add this header to llvm-libc, and move the declaration of
`sockaddr_un` there from `<sys/socket.h>`. See
https://man7.org/linux/man-pages/man0/sys_un.h.0p.html

Add proxy headers for the `<sys/socket.h>` macro (like `AF_UNIX`) and
for the `struct sockaddr_un` so that the tests can be more hermetic and
avoid system header inclusion.



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