diff options
Diffstat (limited to 'manual/tunables.texi')
| -rw-r--r-- | manual/tunables.texi | 33 |
1 files changed, 24 insertions, 9 deletions
diff --git a/manual/tunables.texi b/manual/tunables.texi index 0be7231e36..c76c5c53cd 100644 --- a/manual/tunables.texi +++ b/manual/tunables.texi @@ -35,27 +35,32 @@ tunables with minimum and maximum values: @example $ /lib64/ld-linux-x86-64.so.2 --list-tunables glibc.rtld.nns: 0x4 (min: 0x1, max: 0x10) -glibc.elision.skip_lock_after_retries: 3 (min: -2147483648, max: 2147483647) +glibc.elision.skip_lock_after_retries: 3 (min: 0, max: 2147483647) glibc.malloc.trim_threshold: 0x0 (min: 0x0, max: 0xffffffffffffffff) glibc.malloc.perturb: 0 (min: 0, max: 255) glibc.cpu.x86_shared_cache_size: 0x100000 (min: 0x0, max: 0xffffffffffffffff) +glibc.pthread.rseq: 1 (min: 0, max: 1) +glibc.cpu.prefer_map_32bit_exec: 0 (min: 0, max: 1) glibc.mem.tagging: 0 (min: 0, max: 255) -glibc.elision.tries: 3 (min: -2147483648, max: 2147483647) +glibc.elision.tries: 3 (min: 0, max: 2147483647) glibc.elision.enable: 0 (min: 0, max: 1) -glibc.cpu.x86_rep_movsb_threshold: 0x1000 (min: 0x100, max: 0xffffffffffffffff) +glibc.malloc.hugetlb: 0x0 (min: 0x0, max: 0xffffffffffffffff) +glibc.cpu.x86_rep_movsb_threshold: 0x2000 (min: 0x100, max: 0xffffffffffffffff) glibc.malloc.mxfast: 0x0 (min: 0x0, max: 0xffffffffffffffff) -glibc.elision.skip_lock_busy: 3 (min: -2147483648, max: 2147483647) -glibc.malloc.top_pad: 0x0 (min: 0x0, max: 0xffffffffffffffff) +glibc.rtld.dynamic_sort: 2 (min: 1, max: 2) +glibc.elision.skip_lock_busy: 3 (min: 0, max: 2147483647) +glibc.malloc.top_pad: 0x20000 (min: 0x0, max: 0xffffffffffffffff) glibc.cpu.x86_rep_stosb_threshold: 0x800 (min: 0x1, max: 0xffffffffffffffff) -glibc.cpu.x86_non_temporal_threshold: 0xc0000 (min: 0x4040, max: 0x0fffffffffffffff) +glibc.cpu.x86_non_temporal_threshold: 0xc0000 (min: 0x4040, max: 0xfffffffffffffff) glibc.cpu.x86_shstk: +glibc.pthread.stack_cache_size: 0x2800000 (min: 0x0, max: 0xffffffffffffffff) glibc.cpu.hwcap_mask: 0x6 (min: 0x0, max: 0xffffffffffffffff) -glibc.malloc.mmap_max: 0 (min: -2147483648, max: 2147483647) -glibc.elision.skip_trylock_internal_abort: 3 (min: -2147483648, max: 2147483647) +glibc.malloc.mmap_max: 0 (min: 0, max: 2147483647) +glibc.elision.skip_trylock_internal_abort: 3 (min: 0, max: 2147483647) glibc.malloc.tcache_unsorted_limit: 0x0 (min: 0x0, max: 0xffffffffffffffff) glibc.cpu.x86_ibt: glibc.cpu.hwcaps: -glibc.elision.skip_lock_internal_abort: 3 (min: -2147483648, max: 2147483647) +glibc.elision.skip_lock_internal_abort: 3 (min: 0, max: 2147483647) glibc.malloc.arena_max: 0x0 (min: 0x1, max: 0xffffffffffffffff) glibc.malloc.mmap_threshold: 0x0 (min: 0x0, max: 0xffffffffffffffff) glibc.cpu.x86_data_cache_size: 0x8000 (min: 0x0, max: 0xffffffffffffffff) @@ -583,6 +588,16 @@ instead. This tunable is specific to i386 and x86-64. @end deftp +@deftp Tunable glibc.cpu.prefer_map_32bit_exec +When this tunable is set to \code{1}, shared libraries of non-setuid +programs will be loaded below 2GB with MAP_32BIT. + +Note that the @env{LD_PREFER_MAP_32BIT_EXEC} environment is an alias of +this tunable. + +This tunable is specific to 64-bit x86-64. +@end deftp + @node Memory Related Tunables @section Memory Related Tunables @cindex memory related tunables |