Auto-sync with upstream branch master
    
    - Add new locales for kv_RU, su_ID, tok, and zgh_MA.
    - Drop glibc-rh2255506.patch; fix applied upstream.
    - Enable Intel CET only on x86_64.
    
    Upstream commit: 064c708c78cc2a6b5802dce73108fc0c1c6bfc80
    
    - localedata/unicode-gen/utf8_gen.py: fix Hangul syllable name
    - x86_64: Optimize ffsll function code size.
    - localedata: Remove redundant comments
    - RISC-V: Enable static-pie.
    - linux: Fix fstat64 on alpha and sparc64
    - math: remove exp10 wrappers
    - Benchtests: Increase benchmark iterations
    - debug/getwd_chk.c: warning should be emitted for the __getwd_chk symbol.
    - Make __getrandom_nocancel set errno and add a _nostatus version
    - x86-64/cet: Make CET feature check specific to Linux/x86
    - Incorporate translations (zh_CN)
    - Define ISO 639-3 "glk" (Gilaki)
    - resolv: Fix endless loop in __res_context_query
    - localedata: revert all the remaining locale sources to UTF-8
    - localedata: am_ET ber_DZ en_GB en_PH en_US fil_PH kab_DZ om_ET om_KE ti_ET tl_PH: convert to UTF-8
    - localedata: resolve cyclic dependencies
    - localedata: kv_RU: convert to UTF-8
    - localedata: add new locale kv_RU
    - elf: Fix tst-nodeps2 test failure.
    - localedata: Sort Makefile variables.
    - locale: Sort Makefile variables.
    - i386: Remove CET support bits
    - x86-64/cet: Move check-cet.awk to x86_64
    - x86-64/cet: Move dl-cet.[ch] to x86_64 directories
    - x86: Move x86-64 shadow stack startup codes
    - Fix deprecated utcnow() usage in build-many-glibcs.py
    - Fix invalid escape sequence in build-many-glibcs.py
    - math: Fix test-fenv.c feupdateenv tests
    - Remove installed header rule on $(..)include/%.h
    - i386: Fail if configured with --enable-cet
    - i386: Remove CET support
    - x86: Move CET infrastructure to x86_64
    - localedata: su_ID: make lang_name agree with CLDR
    - localedata: add new locale su_ID
    - localedata: add new locale zgh_MA
    - INSTALL: regenerate
    - localedata: add tok/UTF-8 to SUPPORTED
    - localedata: tok: add yY and nN to yesexpr and noexpr
    - localedata: tok: convert to UTF-8
    - localedata: add data for tok (Toki Pona)
    - Remove ia64-linux-gnu
    - localedata: dz_BT, bo_CN: convert to UTF-8
    - localedata: dz_BT, bo_CN: Fix spelling of "phur bu" in both Tibetan and Dzongkha
    - localedata: bo_CN: Fix spelling errors in Tibetan data
    - localedata: bo_CN: Fix incomplete edit in Tibetan yesexpr
    - localedata: dz_BT: Fix spelling errors in Dzongha data
    - localedata: unicode-gen: Remove redundant \s* from regexp, fix comments
    - localedata: convert the remaining *_RU locales to UTF-8
    - Incorporate translations
    - x32: Handle displacement overflow in PLT rewrite [BZ #31218]
    - x86: Fixup some nits in longjmp asm implementation
    - stdlib: Fix stdbit.h with -Wconversion for clang
    - stdlib: Fix stdbit.h with -Wconversion for older gcc
    - elf: Add ELF_DYNAMIC_AFTER_RELOC to rewrite PLT
    - aarch64: Make cpu-features definitions not Linux-specific
    - hurd: Initializy _dl_pagesize early in static builds
    - hurd: Only init early static TLS if it's used to store stack or pointer guards
    - hurd: Make init-first.c no longer x86-specific
    - hurd: Drop x86-specific assembly from init-first.c
    - hurd: Pass the data pointer to _hurd_stack_setup explicitly
    - x86-64/cet: Check the restore token in longjmp
    - localedata: ru_RU, ru_UA: convert to UTF-8
    - localedata: es_??: convert to UTF-8
    - localedata: miq_NI: convert to UTF-8
    - i386: Ignore --enable-cet
    - mach: Drop SNARF_ARGS macro
    - mach: Drop some unnecessary vm_param.h includes
    - hurd: Declare _hurd_intr_rpc_msg* with protected visibility
    - hurd: Add some missing includes
    - localedata: fy_DE: make this "Western Frisian" to agree with the language code "fy"
    - localedata: fy_DE, fy_NL: convert to UTF-8
    - localedata: ast_ES: convert to UTF-8
    - localedata: ast_ES: Remove wrong copyright text
    - localedata: de_{AT,BE,CH,IT,LU}: convert to UTF-8
    - localedata: lv_LV, it_IT, it_CH: convert to UTF-8
    - localedata: it_IT, lv_LV: currency symbol should follow the amount
    - Implement C23 <stdbit.h>
    - localedata: ms_MY should not use 12-hour format
    - localedata: es_ES: convert to UTF-8
    - localedata: es_ES: Add am_pm strings
    - aarch64: Add longjmp test for SME
    - aarch64: Add setcontext support for SME
    - aarch64: Add longjmp support for SME
    - aarch64: Add SME runtime support
    - localedata: convert uz_UZ and uz_UZ@cyrillic to UTF-8
    - localedata: uz_UZ and uz_UZ@cyrillic: Fix decimal point and thousands separator
    - libio: Check remaining buffer size in _IO_wdo_write (bug 31183)
    - getaddrinfo: translate ENOMEM to EAI_MEMORY (bug 31163)
    - string: Add additional output in test-strchr failure
    - Add a setjmp/longjmp test between user contexts
    - x86/cet: Add -fcf-protection=none before -fcf-protection=branch
    - Regenerate libc.pot
    - Omit regex.c pragmas no longer needed
    - Update copyright dates not handled by scripts/update-copyrights
    - Update copyright in generated files by running "make"
    - Update copyright dates with scripts/update-copyrights
    - x86/cet: Run some CET tests with shadow stack
    - x86/cet: Don't set CET active by default
    - x86/cet: Check feature_1 in TCB for active IBT and SHSTK
    - x86/cet: Enable shadow stack during startup
    - elf: Always provide _dl_get_dl_main_map in libc.a
    - x86/cet: Sync with Linux kernel 6.6 shadow stack interface
    - RISC-V: Add support for dl_runtime_profile (BZ #31151)
    - debug: Add fortify wprintf tests
    - debug: Add fortify syslog tests
    - debug: Add fortify dprintf tests
    - debug: Increase tst-fortify checks for compiler without __va_arg_pack support
    - debug: Adapt fortify tests to libsupport
    - localedata: yo_NT: remove redundant comments
    - localedata: convert en_AU, en_NZ, mi_NZ, niu_NZ to UTF-8
    - localedata: First day of the week in AU is Monday, LC_TIME in en_NZ is identical to LC_TIME in en_AU then
    - localedata: convert yo_NG to UTF-8, check that language name in Yoruba agrees with CLDR
    - x86-64: Fix the tcb field load for x32 [BZ #31185]
    - x86-64: Fix the dtv field load for x32 [BZ #31184]