toolchain: Update glibc 2.34 to recent HEAD

toolchain: Update glibc 2.34 to recent HEAD

This adds the following changes:
42eb735a5d Use LFS and 64 bit time for installed programs (BZ #15333)
d910ba48f4 nis: Build libnsl with 64 bit time_t
01c0a0405c nscd: Use 64 bit time_t on libc nscd routines (BZ# 29402)
e14a91e59d time: Use 64 bit time on tzfile
d0e2ac0c59 elf/tst-tlsopt-powerpc fails when compiled with -mcpu=power10 (BZ# 29776)
71d4fe94a1 time: Set daylight to 1 for matching DST/offset change (bug 29951)
bbe4bbb6e8 elf: Drop elf/tls-macros.h in favor of __thread and tls_model attributes [BZ #28152] [BZ #28205]
d36f457870 intl: Avoid -Wuse-after-free [BZ #26779]
92d5c52aaa resolv: Avoid GCC 12 false positive warning [BZ #28439].
26c7c6bac9 Fix stdlib/tst-setcontext.c for GCC 12 -Warray-compare
6ff61a5145 Fix stdio-common tests for GCC 12 -Waddress
803c959745 Fix build of nptl/tst-thread_local1.cc with GCC 12
88b3228d9f Avoid -Wuse-after-free in tests [BZ #26779].
dd0c72fb46 Regenerate ulps on x86_64 with GCC 12
80b24b8654 math: Properly cast X_TLOSS to float [BZ #28713]
c5c666f349 s_sincosf.h: Change pio4 type to float [BZ #28713]
6484ae5b8c malloc: Fix -Wuse-after-free warning in tst-mallocalign1 [BZ #26779]
c5c792092b cdefs: Limit definition of fortification macros
0b962177ee Use 64-bit time_t interfaces in strftime and strptime (bug 30053)
48059f2b21 Fix NEWS bug entry for 0b962177ee3b45cf775176eb454fcf6aa1b0f6e3
11ad405fd4 elf: Fix 64 time_t support for installed statically binaries
2d7550e6cf elf: Smoke-test ldconfig -p against system /etc/ld.so.cache
16c6a89c17 stdlib: Undo post review change to 16adc58e73f3 [BZ #27749]
89c017de2f x86: Check minimum/maximum of non_temporal_threshold [BZ #29953]
6a0d56b009 gshadow: Matching sgetsgent, sgetsgent_r ERANGE handling (bug 30151)
71eb9cc1ff x86_64: Fix asm constraints in feraiseexcept (bug 30305)
567f7413fb posix: Fix system blocks SIGCHLD erroneously [BZ #30163]
8e1a8e04b1 gmon: Fix allocated buffer overflow (bug 29444)
4dd89b2a8f gmon: improve mcount overflow handling [BZ# 27576]
f1b15d2005 gmon: fix memory corruption issues [BZ# 30101]
0ea8174d62 gmon: Revert addition of tunables to preserve GLIBC_PRIVATE ABI
1cd6626a89 __check_pf: Add a cancellation cleanup handler [BZ #20975]
cad3adf4dd Document BZ #20975 fix
23ee92deea debug: Mark libSegFault.so as NODELETE
c8c0aac68f x86: Increase `non_temporal_threshold` to roughly `sizeof_L3 / 4`
521afc9637 x86: Fix slight bug in `shared_per_thread` cache size calculation.
a07ab67a88 x86: Use `3/4*sizeof(per-thread-L3)` as low bound for NT threshold.
7a6b1f06e7 x86: Fix incorrect scope of setting `shared_per_thread` [BZ# 30745]
228cdb00a0 Simplify allocations and fix merge and continue actions [BZ #28931]
51948fdf0f nss: Sort tests and tests-container and put one test per line
01671608a3 gethosts: Remove unused argument _type
b195fd86c6 gaih_inet: Simplify canon name resolution
f7efb43738 getaddrinfo: Fix leak with AI_ALL [BZ #28852]
e05e5889b8 gaih_inet: Simplify service resolution
922f2614d6 gaih_inet: make numeric lookup a separate routine
3b5a3e5009 gaih_inet: Split simple gethostbyname into its own function
5914a1d55b gaih_inet: Split nscd lookup code into its own function.
ec71cb9611 gaih_inet: separate nss lookup loop into its own function
4d59769087 gaih_inet: make gethosts into a function
6e3fed9d20 gaih_inet: split loopback lookup into its own function
92478a808f gaih_inet: Split result generation into its own function
cc4544ef80 gethosts: Return EAI_MEMORY on allocation failure
e09ee267c0 getaddrinfo: Fix use after free in getcanonname (CVE-2023-4806)
8006457ab7 Fix leak in getaddrinfo introduced by the fix for CVE-2023-4806 [BZ #30843]
c3b99f8328 Document CVE-2023-4806 and CVE-2023-5156 in NEWS
dcc367f148 tunables: Terminate if end of input is reached (CVE-2023-4911)

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>