Monday Patch Queue Review update (2025-11-10)

[Carlos O'Donell]

Most recent meeting status is always here:
https://sourceware.org/glibc/wiki/PatchworkReviewMeetings#Update

Meeting: 2025-11-10 @ 0900h EST5EDT

Video/Audio: https://bbb.linuxfoundation.org/room/adm-alk-1uu-7fu

IRC: #glibc on OFTC.

Review new patches and restart review at the top.

​ * State NEW delegate NOBODY at 586 patches.
  * Add experimental clang build support (Adhemerval)
   * Discussed if we need to assign someone to move this forward.
  * sysdeps/x86: prefer EVEX on Hygon by setting Prefer_No_AVX512 (Jiamei)
   * Changes requested. Comment format.
   * Touches x86 code.
  * stdlib: Do not define once_flag, ONCE_FLAG_INIT for C++ (Florian)
   * Reviewed by Collin and Jonathan.
  * Require GNU C --at least GCC 5 or Clang 4-- in headers (Alejandro)
   * Comments on list regarding direction and approach.
   * Marking as "Rejected"
  * malloc: Optimize the madvise behaviour on the main heap (Dev)
   * Carlos: Emailed DJ to start a discussion around TSX disabled on the pre-commit CI tester.
   * Reviewer Pool: Adhemerval.
  * posix: execvpe: skip $PATH components that are too long (Brady)
   * Changes requested.
   * Needs a bug number, test case, and possible manual update?
  * aarch64: support shadow stack in clone3 (Yury)
   * Looking to get the patch ready for inclusion.
   * This functionality would be used as evidence for the Linux kernel developers that the feature would be used.
   * Adhemerval: Did you copy other libc maintainers? Bionic? Musl?
   * Adhemerval will review v4.
  * [v3,4/5] math: Optimize frexpl (intel96) with fast path for normal numbers (Osama)
   * Reviewer Pool: Wilco
  * [RFC] xfs: fake fallocate success for always CoW inodes (Hans)
   * Not applicable. Kernel change discussion.
  * sampling-asan: A sampling-based address sanitization for on-line memory bug detection (Sung-Hun)
   * Reviewer Pool: Carlos O'Donell
  * Aarch64: Use oryon1's memset/memcpy for Qualcomm's oryon-2 cores (Andrew)
   * Changes requested for commit message improvement stating some performance improvement numbers.
  * Add threaded variants of single-threaded malloc tests (Arjun)
   * Changes requested, needs v2.
  * iconv: iconv.c: fix null pointer dereference when outbuf is NULL (Anton)
   * Carlos: Marked Rejected, but would like to understand what tool was being used to find these issues.
  * Change canonicalization for non-split speed [BZ 33340] (hpa)
    * Reviewer Pool: Arjun.
  * Stopped at 122294.
  * malloc: Remove fastbins (Dev)
   * Reviewer Pool: DJ
  * Release schedule from Andreas:
   * https://inbox.sourceware.org/libc-alpha/4061948.44csPzL39Z@kona/T/#u

-- 
Cheers,
Carlos.