Szabolcs Nagy f4f8f4d4e0 elf: Use relaxed atomics for racy accesses [BZ #19329] ... This is a follow up patch to the fix for bug 19329. This adds relaxed MO atomics to accesses that were previously data races but are now race conditions, and where relaxed MO is sufficient. The race conditions all follow the pattern that the write is behind the dlopen lock, but a read can happen concurrently (e.g. during tls access) without holding the lock. For slotinfo entries the read value only matters if it reads from a synchronized write in dlopen or dlclose, otherwise the related dtv entry is not valid to access so it is fine to leave it in an inconsistent state. The same applies for GL(dl_tls_max_dtv_idx) and GL(dl_tls_generation), but there the algorithm relies on the fact that the read of the last synchronized write is an increasing value. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>		2021-05-11 17:16:37 +01:00
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64
fpu	regenerate ulps on x86_64 with -march=native	2021-04-28 12:46:00 +02:00
multiarch	x86: Add EVEX optimized memchr family not safe for RTM	2021-05-08 16:26:30 -04:00
nptl	nptl: Move pthread_spin_trylock into libc	2021-04-23 17:06:48 +02:00
x32	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
____longjmp_chk.S
__longjmp.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
_mcount.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
abort-instr.h
add_n.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
addmul_1.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
bsd-_setjmp.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
bsd-setjmp.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
bzero.S
configure	configure: Check for static PIE support	2021-01-21 15:54:50 +00:00
configure.ac	configure: Check for static PIE support	2021-01-21 15:54:50 +00:00
crti.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
crtn.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-hwcaps-subdirs.c	<sys/platform/x86.h>: Remove the C preprocessor magic	2021-01-21 05:58:17 -08:00
dl-irel.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-machine.h	x86_64: Remove lazy tlsdesc relocation related code	2021-04-15 09:47:47 +01:00
dl-procinfo.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-runtime.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-tls.c	elf: Use relaxed atomics for racy accesses [BZ #19329]	2021-05-11 17:16:37 +01:00
dl-tls.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-tlsdesc.h	x86_64: Remove lazy tlsdesc relocation related code	2021-04-15 09:47:47 +01:00
dl-tlsdesc.S	x86_64: Remove lazy tlsdesc relocation related code	2021-04-15 09:47:47 +01:00
dl-trampoline.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-trampoline.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ffs.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ffsll.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
htonl.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ifuncmain8.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ifuncmod8.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
Implies	Remove dbl-64/wordsize-64 (part 2)	2021-01-07 15:26:26 +00:00
isa.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
jmpbuf-offsets.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
jmpbuf-unwind.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
l10nflist.c
link-defines.sym
locale-defines.sym
localplt.data	ld.so: Do not export free/calloc/malloc/realloc functions [BZ #25486]	2020-02-15 11:01:23 +01:00
lshift.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
machine-gmon.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
Makefile	x86_64: Correct THREAD_SETMEM/THREAD_SETMEM_NC for movq [BZ #27591]	2021-04-01 07:00:22 -07:00
memchr.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
memcmp.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
memcpy_chk.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
memcpy.S
memmove_chk.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
memmove.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
mempcpy_chk.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
mempcpy.S
memrchr.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
memset_chk.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
memset.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
memusage.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
mp_clz_tab.c
mul_1.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
preconfigure
preconfigure.ac
rawmemchr.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
rshift.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
rtld-offsets.sym
setjmp.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
stackguard-macros.h
stackinfo.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
start.S	Reduce the statically linked startup code [BZ #23323]	2021-02-25 12:13:02 +01:00
stpcpy.S
strcasecmp_l-nonascii.c
strcasecmp_l.S
strcasecmp.S
strcat.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
strchr.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
strchrnul.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
strcmp.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
strcpy.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
strcspn.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
strlen.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
strncase_l-nonascii.c
strncase_l.S
strncase.S
strncmp.S
strnlen.S
strpbrk.S
strrchr.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
strspn.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sub_n.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
submul_1.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sysdep.h	x86-64: Add AVX optimized string/memory functions for RTM	2021-03-29 07:40:17 -07:00
tls_get_addr.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tls-macros.h
tlsdesc.c	elf: Remove lazy tlsdesc relocation related code	2021-04-21 14:35:53 +01:00
tlsdesc.sym
tst-audit3.c
tst-audit4-aux.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-audit4.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-audit5.c
tst-audit6.c
tst-audit7.c
tst-audit10-aux.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-audit10.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-audit.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-auditmod3a.c
tst-auditmod3b.c
tst-auditmod4a.c
tst-auditmod4b.c
tst-auditmod5a.c
tst-auditmod5b.c
tst-auditmod6a.c
tst-auditmod6b.c
tst-auditmod6c.c
tst-auditmod7a.c
tst-auditmod7b.c
tst-auditmod10a.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-auditmod10b.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-avx512-aux.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-avx512.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-avx512mod.c
tst-avx-aux.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-avx.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-avxmod.c
tst-glibc-hwcaps.c	<sys/platform/x86.h>: Remove the C preprocessor magic	2021-01-21 05:58:17 -08:00
tst-mallocalign1.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-platform-1.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-platformmod-1.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-platformmod-2.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-quad1.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-quad1pie.c
tst-quad2.c
tst-quad2pie.c
tst-quadmod1.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-quadmod1pie.S
tst-quadmod2.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-quadmod2pie.S
tst-split-dynreloc.c
tst-split-dynreloc.lds
tst-sse.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-ssemod.c
tst-stack-align.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-x86_64-1.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-x86_64mod-1.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
tst-x86-64-tls-1.c	x86_64: Correct THREAD_SETMEM/THREAD_SETMEM_NC for movq [BZ #27591]	2021-04-01 07:00:22 -07:00
Versions	Move __fentry__ version definition to sysdeps/{i386,x86_64}	2018-08-10 09:07:44 +02:00
wcschr.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
wcscmp.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
wcslen.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
wcsrchr.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
wmemset_chk.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
wmemset.S
wordcopy.c