Auto-sync with upstream branch master
    
    Upstream commit: 65cbd52174f5bc211dd655727c2239e25e55bfce
    
    - build-many-glibcs.py: --disable-gcov for gcc-first
    - malloc: set NON_MAIN_ARENA flag for reclaimed memalign chunk (BZ #30101)
    - rcmd.c: Fix indentation in last commit
    - inet/rcmd.c: fix warn unused result
    - wcsmbs: Re-flow and sort routines, tests variables in Makefile
    - debug: Re-flow and sort routines variable in Makefile
    - math: Improve fmod(f) performance
    - Benchtests: Adjust timing
    - malloc: Assure that THP mode read do write OOB end of stringt
    - malloc: Assure that THP mode is always null terminated
    - aio: Fix freeing memory
    - elf: Stop including tls.h in ldsodefs.h
    - manual: update AddressSanitizer discussion
    - manual: document snprintf truncation better
    - manual: improve string section wording
    - manual: fix texinfo typo
    - <stdio.h>: Make fopencookie, vasprintf, asprintf available by default
    - <string.h>: Make strchrnul, strcasestr, memmem available by default
    - <sys/platform/x86.h>: Add PREFETCHI support
    - <sys/platform/x86.h>: Add AMX-COMPLEX support
    - <sys/platform/x86.h>: Add AVX-NE-CONVERT support
    - <sys/platform/x86.h>: Add AVX-VNNI-INT8 support
    - <sys/platform/x86.h>: Add MSRLIST support
    - <sys/platform/x86.h>: Add AVX-IFMA support
    - <sys/platform/x86.h>: Add AMX-FP16 support
    - <sys/platform/x86.h>: Add WRMSRNS support
    - <sys/platform/x86.h>: Add ArchPerfmonExt support
    - <sys/platform/x86.h>: Add CMPCCXADD support
    - <sys/platform/x86.h>: Add LASS support
    - <sys/platform/x86.h>: Add RAO-INT support
    - <sys/platform/x86.h>: Add LBR support
    - <sys/platform/x86.h>: Add RTM_FORCE_ABORT support
    - <sys/platform/x86.h>: Add SGX-KEYS support
    - <sys/platform/x86.h>: Add BUS_LOCK_DETECT support
    - <sys/platform/x86.h>: Add LA57 support
    - platform.texi: Move LAM after LAHF64_SAHF64
    - <bits/platform/x86.h>: Rename to x86_cpu_INDEX_7_ECX_15
    - hppa: Update struct __pthread_rwlock_arch_t comment.
    - hppa: Revise  __TIMESIZE define to use __WORDSIZE
    - libio: Remove unused pragma weak on vtable
    - malloc: Only set pragma weak for rpc freemem if required
    - compare_strings.py : Add --gmean flag
    - x86/dl-cacheinfo: remove unsused parameter from handle_amd
    - powerpc: Disable stack protector in early static initialization
    - nptl: Fix tst-cancel30 on sparc64
    - math: Remove the error handling wrapper from fmod and fmodf
    - math: Improve fmodf
    - math: Improve fmod
    - benchtests: Add fmodf benchmark
    - benchtests: Add fmod benchmark
    - x86: Set FSGSBASE to active if enabled by kernel
    - x86_64: Fix asm constraints in feraiseexcept (bug 30305)
    - manual: Document __wur usage under _FORTIFY_SOURCE
    - x86_64: Add rtld-stpncpy & rtld-strncpy
    - stdio-common: Fix building when !IS_IN (libc)
    - time: Fix strftime(3) API regarding nullability
    - Update arm libm-tests-ulps
    - getlogin_r: fix missing fallback if loginuid is unset (bug 30235)
    - memalign: Support scanning for aligned chunks.
    - malloc: Use C11 atomics on memusage
    - Remove --enable-tunables configure option
    - Remove --disable-experimental-malloc option