glibc/sysdeps, branch master

linux: Trivial test output fix in tst-pkey

2024-07-19T20:57:23Z

Signed-off-by: Andreas K. Hüttel

linux: Also check pkey_get for ENOSYS on tst-pkey (BZ 31996)

2024-07-19T20:39:44Z

The powerpc pkey_get/pkey_set support was only added for 64-bit [1], and tst-pkey only checks if the support was present with pkey_alloc (which does not fail on powerpc32, at least running a 64-bit kernel). Checked on powerpc-linux-gnu. [1] https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=a803367bab167f5ec4fde1f0d0ec447707c29520 Reviewed-By: Andreas K. Huettel

powerpc: Update soft-fp ulps

2024-07-19T17:29:35Z

Results based on regen-ulps using gcc 11.2.1 on a POWER8 machine.

Fix usage of _STACK_GROWS_DOWN and _STACK_GROWS_UP defines [BZ 31989]

2024-07-19T14:10:17Z

Signed-off-by: John David Anglin Reviewed-By: Andreas K. Hüttel

x32: xfail elf/tst-platform-1 [BZ #22363]

2024-07-19T08:34:38Z

Xfail elf/tst-platform-1 on x32 since kernel passes i686 in AT_PLATFORM. See https://sourceware.org/bugzilla/show_bug.cgi?id=22363 Signed-off-by: H.J. Lu Reviewed-by: Sam James

Revert "LoongArch: Add cfi instructions for _dl_tlsdesc_dynamic"

2024-07-17T13:24:51Z

We're in freeze for the 2.40 release. This reverts commit 43224b1379d60b1ad98d29ef3d7905d55f828a9f. Signed-off-by: Andreas K. Hüttel

htl: Fix __pthread_init_thread declaration and definition

2024-07-17T13:04:25Z

0e75c4a4634f ("hurd: Fix pthread_self() without libpthread") added a declaration for ___pthread_init_thread instead of __pthread_init_thread, and missed defining the external hidden symbol.

hurd: Fix pthread_self() without libpthread

2024-07-17T12:14:21Z

5476f8cd2e68 ("htl: move pthread_self info libc.") moved the htl pthread_self() function from libpthread to libc, replacing the previous libc stub that just returns 0. And 53da64d1cf36 ("htl: Initialize ___pthread_self early") added initialization code which is needed before being able to call pthread_self. It is currently in libpthread, and thus never called before programs can call pthread_self from libc, which then segfaults when accessing _pthread_self()->thread. This moves the initialization to libc itself, as initialized variables, so pthread_self can always be called fine.

LoongArch: Add cfi instructions for _dl_tlsdesc_dynamic

2024-07-17T01:32:25Z

In _dl_tlsdesc_dynamic, there are three 'addi.d sp, sp, -size' instructions to allocate stack size for Float/LSX/LASX registers. Every 'addi.d sp, sp, -size' needs a cfi_adjust_cfa_offset because of sp is used to compute CFA. But only one 'addi.d sp, sp, -size' will be run according to HWCAP value. And all cfi_adjust_cfa_offset will be executed in stack unwinding, it result in incorrect CFA. Change _dl_tlsdesc_dynamic to _dl_tlsdesc_dynamic, _dl_tlsdesc_dynamic_lsx and _dl_tlsdesc_dynamic_lasx. Conflicting cfi instructions can be distributed to the three functions. And cfi instructions can correspond to stack down instructions.

x86: Disable non-temporal memset on Skylake Server

2024-07-16T09:20:18Z

The original commit enabling non-temporal memset on Skylake Server had erroneous benchmarks (actually done on ICX). Further benchmarks indicate non-temporal stores may in fact by a regression on Skylake Server. This commit may be over-cautious in some cases, but should avoid any regressions for 2.40. Tested using qemu on all x86_64 cpu arch supported by both qemu + GLIBC. Reviewed-by: DJ Delorie Reviewed-by: H.J. Lu