Szabolcs Nagy 0c7b002fac rtld: Add rtld.nns tunable for the number of supported namespaces ... TLS_STATIC_SURPLUS is 1664 bytes currently which is not enough to support DL_NNS (== 16) number of dynamic link namespaces, if we assume 192 bytes of TLS are reserved for libc use and 144 bytes are reserved for other system libraries that use IE TLS. A new tunable is introduced to control the number of supported namespaces and to adjust the surplus static TLS size as follows: surplus_tls = 192 * (rtld.nns-1) + 144 * rtld.nns + 512 The default is rtld.nns == 4 and then the surplus TLS size is the same as before, so the behaviour is unchanged by default. If an application creates more namespaces than the rtld.nns setting allows, then it is not guaranteed to work, but the limit is not checked. So existing usage will continue to work, but in the future if an application creates more than 4 dynamic link namespaces then the tunable will need to be set. In this patch DL_NNS is a fixed value and provides a maximum to the rtld.nns setting. Static linking used fixed 2048 bytes surplus TLS, this is changed so the same contract is used as for dynamic linking. With static linking DL_NNS == 1 so rtld.nns tunable is forced to 1, so by default the surplus TLS is reduced to 144 + 512 = 656 bytes. This change is not expected to cause problems. Tested on aarch64-linux-gnu and x86_64-linux-gnu. Reviewed-by: Carlos O'Donell <carlos@redhat.com>		2020-07-08 17:32:56 +01:00
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net	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
netinet	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
nfs	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
sys	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
_G_config.h	Post-cleanup 2: minimize _G_config.h.	2018-02-07 10:10:32 -05:00
_itoa.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
a.out.h
abort-instr.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
adaptive_spin_count.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
aio_misc.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
allocalim.h
arch-fd_to_filename.h	<fd_to_filename.h>: Add type safety and port to Hurd	2020-02-18 13:42:29 +01:00
asm-syntax.h
atomic-machine.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
c++-types.data
confstr.h
crti.S	Introduce <elf-initfini.h> and ELF_INITFINI for all architectures	2020-02-18 15:12:25 +01:00
crtn.S	Introduce <elf-initfini.h> and ELF_INITFINI for all architectures	2020-02-18 15:12:25 +01:00
device-nrs.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dirstream.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-auxv.h	powerpc: Move cache line size to rtld_global_ro	2020-01-17 09:05:03 -03:00
dl-cache.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-dtprocnum.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-dtv.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-fcntl.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-fileid.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-fptr.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-hash.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-irel.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-librecon.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-lookupcfg.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-machine.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-mman.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-osinfo.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-procinfo.c
dl-procinfo.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-procruntime.c	ld.so: Add architecture specific fields	2017-11-13 08:02:52 -08:00
dl-prop.h	rtld: Clean up PT_NOTE and add PT_GNU_PROPERTY handling	2020-07-08 14:28:53 +01:00
dl-sysdep.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-tls.h
dl-unistd.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
dl-vdso-setup.c	elf: Move vDSO setup to rtld (BZ#24967)	2020-01-03 11:22:07 -03:00
dl-vdso-setup.h	elf: Move vDSO setup to rtld (BZ#24967)	2020-01-03 11:22:07 -03:00
dl-vdso.h	elf: Move vDSO setup to rtld (BZ#24967)	2020-01-03 11:22:07 -03:00
dwarf2.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
elf_machine_sym_no_match.h	elf: Introduce <elf_machine_sym_no_match.h>	2020-04-24 22:13:03 +02:00
elf-initfini.h	Introduce <elf-initfini.h> and ELF_INITFINI for all architectures	2020-02-18 15:12:25 +01:00
elide.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
eloop-threshold.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
entry.h
errqueue.h
exit-thread.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
fd_to_filename.h	<fd_to_filename.h>: Add type safety and port to Hurd	2020-02-18 13:42:29 +01:00
fenv_private.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
fips-private.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
fix-fp-int-compare-invalid.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
fix-fp-int-convert-overflow.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
fix-int-fp-convert-zero.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
float128-abi.h	Move some float128 symbol version definitions.	2017-10-16 22:04:42 +00:00
fork.h
fpu_control.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
framestate.c	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
gcc-compat.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
gccframe.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
get-rounding-mode.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
gmp-mparam.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
hp-timing-common.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
hp-timing.h	Update HP_TIMING_NOW for _ISOMAC in sysdeps/generic/hp-timing.h	2020-06-05 09:44:06 -07:00
ifreq.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
ifunc-init.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
ifunc-sel.h
internal-signals.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
intr-msg.h
ld.abilist
ldbl-classify-compat.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
ldconfig.h	elf: Include <stddef.h> (for size_t), <sys/stat.h> in <ldconfig.h>	2020-06-25 16:51:03 +02:00
ldsodefs.h	rtld: Add rtld.nns tunable for the number of supported namespaces	2020-07-08 17:32:56 +01:00
libanl.abilist
libBrokenLocale.abilist
libc-lock.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
libc-mmap.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
libc-start.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
libc-tsd.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
libc.abilist	Add the __libc_single_threaded variable	2020-07-06 11:15:58 +02:00
libcrypt.abilist
libdl.abilist
libm-alias-double.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
libm-alias-float128.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
libm-alias-float.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
libm-alias-ldouble.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
libm-test-ulps	Replace gen-libm-test.pl with gen-libm-test.py.	2018-08-09 15:34:12 +00:00
libm-test-ulps-name
libm.abilist
libnsl.abilist
libnss_compat.abilist
libnss_db.abilist
libnss_dns.abilist
libnss_files.abilist
libnss_hesiod.abilist
libnss_nis.abilist
libnss_nisplus.abilist
libpthread.abilist
libresolv.abilist
librt.abilist
libutil.abilist
link_map.h	ld.so: Add architecture specific fields	2017-11-13 08:02:52 -08:00
linkmap.h
local-setxid.h
localplt.data	ld.so: Do not export free/calloc/malloc/realloc functions [BZ #25486]	2020-02-15 11:01:23 +01:00
machine-gmon.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
machine-lock.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
machine-sp.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
Makefile	string: Remove old TLS usage on strsignal	2020-07-07 14:10:58 -03:00
malloc-alignment.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
malloc-machine.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
malloc-sysdep.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
math_ldbl_opt.h	Use PRINTF_LDBL_IS_DBL instead of __ldbl_is_dbl.	2018-12-05 18:15:43 -02:00
math_ldbl.h	Allow direct use of math_ldbl.h in testsuite.	2017-02-25 10:40:48 -05:00
math_private_calls.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
math_private.h	Enable inlining issignalingf within glibc	2019-11-21 09:39:48 -06:00
math-barriers.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
math-nan-payload-double.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
math-nan-payload-float.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
math-narrow-alias-float128.h	ldbl-128ibm-compat: Provide ieee128 symbols to narrow functions	2020-02-20 17:12:14 -06:00
math-tests-arch.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
math-tests-exceptions.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
math-tests-rounding.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
math-tests-snan-cast.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
math-tests-snan-payload.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
math-tests-snan.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
math-tests-trap-force.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
math-tests-trap.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
math-tests.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
math-type-macros-double.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
math-type-macros-float128.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
math-type-macros-float.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
math-type-macros-ldouble.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
math-type-macros.h	Add libm_alias_finite for _finite symbols	2020-01-03 10:02:04 -03:00
math-use-builtins-ceil.h	math: Decompose math-use-builtins.h	2020-06-22 11:09:45 -03:00
math-use-builtins-copysign.h	math: Decompose math-use-builtins.h	2020-06-22 11:09:45 -03:00
math-use-builtins-floor.h	math: Decompose math-use-builtins.h	2020-06-22 11:09:45 -03:00
math-use-builtins-fma.h	math: Decompose math-use-builtins.h	2020-06-22 11:09:45 -03:00
math-use-builtins-nearbyint.h	math: Decompose math-use-builtins.h	2020-06-22 11:09:45 -03:00
math-use-builtins-rint.h	math: Decompose math-use-builtins.h	2020-06-22 11:09:45 -03:00
math-use-builtins-round.h	math: Decompose math-use-builtins.h	2020-06-22 11:09:45 -03:00
math-use-builtins-sqrt.h	math: Decompose math-use-builtins.h	2020-06-22 11:09:45 -03:00
math-use-builtins-trunc.h	math: Decompose math-use-builtins.h	2020-06-22 11:09:45 -03:00
math-use-builtins.h	math: Decompose math-use-builtins.h	2020-06-22 11:09:45 -03:00
memcopy.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
memusage.h	y2038: Replace __clock_gettime with __clock_gettime64	2020-05-20 16:45:16 +02:00
mmap_info.h	posix: Fix large mmap64 offset for mips64n32 (BZ#24699)	2019-07-10 16:52:50 -03:00
nan-high-order-bit.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
not-cancel.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
not-errno.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
nscd-types.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
pagecopy.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
paths.h
profil-counter.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
pty-private.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
register-dump.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
rseq-internal.h	Linux: Perform rseq registration at C startup and thread creation	2020-07-06 10:21:16 +02:00
rtld-lowlevel.h
safe-fatal.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
setjmpP.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
sigcontextinfo.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
siglist-compat.c	signal: Move sys_siglist to a compat symbol	2020-07-07 14:10:58 -03:00
siglist-compat.h	signal: Move sys_siglist to a compat symbol	2020-07-07 14:10:58 -03:00
siglist.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
sigset-cvt-mask.h	Hurd: Use __sigmask in favor of deprecated sigmask	2020-05-28 11:40:13 +02:00
sigsetops.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
single-thread.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
stackguard-macros.h
stackinfo.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
stap-probe-machine.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
startup.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
stdio-lock.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
string_private.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
symbol-hacks.h	Break more lines before not after operators.	2019-02-25 13:19:19 +00:00
sysdep-cancel.h	nptl: Remove tst-cancel-wrappers test and related macros	2019-01-03 18:38:08 -02:00
sysdep.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
thread_state.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
time-clockid.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
tininess.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
tls-internal-struct.h	string: Use tls-internal on strerror_l	2020-07-07 14:10:58 -03:00
tls-internal.c	string: Remove old TLS usage on strsignal	2020-07-07 14:10:58 -03:00
tls-internal.h	string: Use tls-internal on strerror_l	2020-07-07 14:10:58 -03:00
tls-macros.h
tls-setup.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
tls.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
tst-audit.h
tst-stack-align.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
unsecvars.h	Ignore and remove LD_HWCAP_MASK for AT_SECURE programs (bug #21209)	2017-03-07 20:52:04 +05:30
unwind-arch.h	mips: Fix bracktrace result for signal frames	2020-02-18 10:39:03 -03:00
unwind-dw2-fde-glibc.c	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
unwind-dw2-fde.c	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
unwind-dw2-fde.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
unwind-dw2.c	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
unwind-pe.c
unwind-pe.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
unwind-resume.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
unwind.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00
utmp-equal.h	Update copyright dates with scripts/update-copyrights.	2020-01-01 00:14:33 +00:00