Monday Patch Queue Review update (2025-09-15)

[Carlos O'Donell]

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

Meeting: 2025-09-15 @ 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 and delegate NOBODY at 573 patches.
  * Starting at 120254.
  * malloc: Hoist common unlock out of if-else control block (Dev Jain)
   * Reviewer Pool: DJ Delorie
  * [v3] x86: Don't use asm statement for trunc/truncf (HJ)
   * Discussed having Uros review this?
  * ldd: define the unused variable (Aurelien)
   * Carlos noted on list to please push. Marked approved.
  * Optimize flt-32/dbl-64 remainder implementation (Adhemerval)
   * Reviewer Pool: Wilco
  * manual: describe unsupported SYS_clone{3} when used via syscall (Yury)
   * Discussed posting v2 with slightly changed wording.
   * Yury to post v2, marked superseded.
  * Support: Build container programs like tests (HJ)
   * Requested DJ review becuase of background implementing the targets.
  * [1/1] riscv: Add Zbkb optimized repeat_bytes helper (Wang)
   * Changes requestd by Adhemerval and Peter.
  * Stopping at 120105.
  * Walking the list of attendees for review items.
  * [v2] nptl: Fix MADV_GUARD_INSTALL logic for thread without guard page (BZ 33356) (Adhemerval)
   * Reviewer Pool: Florian.
  * [v2] i686: Compile .op files and gmon tests with -mfentry (HJ)
   * Carlos: Please ping Joseph for a review?
  * HJ: https://sourceware.org/bugzilla/show_bug.cgi?id=33429
   * After Florian's patch we start using TLS more.
   * Then we have an undefined weak TLS symbol, and linker will resolve that to zero.
   * The relocation ends up being 16-bit and out of range for ColdFire.
   * There is no linker maintainer on the binutils side.
   * Carlos: Drop GNU/Linux as a supported OS for coldfire?
   * HJ: I will submit a patch for build-many-glibcs?
   * Carlos: Also add a NEWS entry?
  * [v1,1/2] ppc64le: Restore optimized strcmp for power10 (Sachin)
   * Needs review.
   * Carlos: May you please add these as release blockers?
  * [v7] Mark pages with MADV_DONTNEED to shrink and grow rather than mremap() (William)
   * Reviewer Pool: Wilco
   * Carlos: Ping Florian?
  * Can we support re-using shadow stacks?
   * https://patchwork.sourceware.org/project/glibc/patch/20250707124722.2251501-3-yury.khrustalev@arm.com/#211456
   * Adhemerval asked if we can reuse it?
   * Yury: Problem is that for shadow stack to be correct it must be initialized.
   * Reuse is not possible until re-init. Kernel doesn't support re-init after thread compleition.
   * On the glibc side we could check if the shadow stack is reinited properly?
   * Adhemerval: Just a suggestion.
   * [v2,1/3] riscv: memcpy_noalignment: Make register allocation Zca-friendly (Zihong)
    * Carlos to ping.

-- 
Cheers,
Carlos.