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dce452dc52
The glibc.tune namespace is vaguely named since it is a 'tunable', so give it a more specific name that describes what it refers to. Rename the tunable namespace to 'cpu' to more accurately reflect what it encompasses. Also rename glibc.tune.cpu to glibc.cpu.name since glibc.cpu.cpu is weird. * NEWS: Mention the change. * elf/dl-tunables.list: Rename tune namespace to cpu. * sysdeps/powerpc/dl-tunables.list: Likewise. * sysdeps/x86/dl-tunables.list: Likewise. * sysdeps/aarch64/dl-tunables.list: Rename tune.cpu to cpu.name. * elf/dl-hwcaps.c (_dl_important_hwcaps): Adjust. * elf/dl-hwcaps.h (GET_HWCAP_MASK): Likewise. * manual/README.tunables: Likewise. * manual/tunables.texi: Likewise. * sysdeps/powerpc/cpu-features.c: Likewise. * sysdeps/unix/sysv/linux/aarch64/cpu-features.c (init_cpu_features): Likewise. * sysdeps/x86/cpu-features.c: Likewise. * sysdeps/x86/cpu-features.h: Likewise. * sysdeps/x86/cpu-tunables.c: Likewise. * sysdeps/x86_64/Makefile: Likewise. * sysdeps/x86/dl-cet.c: Likewise. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
125 lines
2.9 KiB
Plaintext
125 lines
2.9 KiB
Plaintext
# Copyright (C) 2016-2018 Free Software Foundation, Inc.
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# This file is part of the GNU C Library.
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# The GNU C Library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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# The GNU C Library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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# You should have received a copy of the GNU Lesser General Public
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# License along with the GNU C Library; if not, see
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# <http://www.gnu.org/licenses/>.
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# Allowed attributes for tunables:
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#
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# type: Defaults to STRING
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# minval: Optional minimum acceptable value
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# maxval: Optional maximum acceptable value
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# env_alias: An alias environment variable
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# security_level: Specify security level of the tunable. Valid values are:
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#
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# SXID_ERASE: (default) Don't read for AT_SECURE binaries and
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# removed so that child processes can't read it.
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# SXID_IGNORE: Don't read for AT_SECURE binaries, but retained for
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# non-AT_SECURE subprocesses.
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# NONE: Read all the time.
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glibc {
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malloc {
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check {
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type: INT_32
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minval: 0
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maxval: 3
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env_alias: MALLOC_CHECK_
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}
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top_pad {
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type: SIZE_T
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env_alias: MALLOC_TOP_PAD_
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security_level: SXID_IGNORE
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}
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perturb {
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type: INT_32
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minval: 0
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maxval: 0xff
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env_alias: MALLOC_PERTURB_
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security_level: SXID_IGNORE
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}
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mmap_threshold {
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type: SIZE_T
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env_alias: MALLOC_MMAP_THRESHOLD_
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security_level: SXID_IGNORE
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}
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trim_threshold {
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type: SIZE_T
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env_alias: MALLOC_TRIM_THRESHOLD_
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security_level: SXID_IGNORE
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}
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mmap_max {
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type: INT_32
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env_alias: MALLOC_MMAP_MAX_
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security_level: SXID_IGNORE
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}
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arena_max {
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type: SIZE_T
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env_alias: MALLOC_ARENA_MAX
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minval: 1
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security_level: SXID_IGNORE
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}
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arena_test {
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type: SIZE_T
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env_alias: MALLOC_ARENA_TEST
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minval: 1
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security_level: SXID_IGNORE
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}
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tcache_max {
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type: SIZE_T
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}
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tcache_count {
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type: SIZE_T
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}
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tcache_unsorted_limit {
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type: SIZE_T
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}
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}
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cpu {
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hwcap_mask {
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type: UINT_64
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env_alias: LD_HWCAP_MASK
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default: HWCAP_IMPORTANT
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}
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}
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elision {
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enable {
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type: INT_32
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minval: 0
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maxval: 1
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}
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skip_lock_busy {
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type: INT_32
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default: 3
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}
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skip_lock_internal_abort {
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type: INT_32
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default: 3
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}
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skip_lock_after_retries {
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type: INT_32
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default: 3
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}
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tries {
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type: INT_32
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default: 3
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}
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skip_trylock_internal_abort {
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type: INT_32
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default: 3
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}
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}
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}
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