Szabolcs Nagy 2682695e5c Make libc symbols hidden in static PIE ... Hidden visibility can avoid indirections and RELATIVE relocs in static PIE libc. The check should use IS_IN_LIB instead of IS_IN(libc) since all symbols are defined locally in static PIE and the optimization is useful in all libraries not just libc. However the test system links objects from libcrypt.a into dynamic linked test binaries where hidden visibility does not work. I think mixing static and shared libc components in the same binary should not be supported usage, but to be safe only use hidden in libc.a. On some targets (i386) this optimization cannot be applied because hidden visibility PIE ifunc functions don't work, so it is gated by NO_HIDDEN_EXTERN_FUNC_IN_PIE. From -static-pie linked 'int main(){}' this shaves off 71 relative relocs on aarch64 and reduces code size by about 2k. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>		2021-01-21 15:55:17 +00:00
..
arpa	CVE-2016-10739: getaddrinfo: Fully parse IPv4 address strings [BZ #20018]	2019-01-21 21:26:03 +01:00
bits	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
gnu	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
net	Fix resolver if_* namespace (bug 17717).	2014-12-16 18:18:49 +00:00
netinet	nss_files: Consolidate line parse declarations in <nss_files.h>	2020-07-21 07:33:20 +02:00
programs	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
protocols	(abmon): Remove spaces.	1998-11-12 18:03:43 +00:00
rpc	Handle out-of-memory case in svc_tcp.c/svc_unix.c:rendezvous_request.	2020-12-10 11:11:20 +01:00
rpcsvc	Remove --enable-obsolete-nsl configure flag	2020-07-08 17:25:57 +02:00
sys	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
aio.h	y2038: Convert aio_suspend to support 64 bit time	2020-11-30 14:08:44 +01:00
aliases.h	Remove --enable-obsolete-nsl configure flag	2020-07-08 17:25:57 +02:00
alloc_buffer.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
alloca.h	Remove macros extend_alloca, extend_alloca_account [BZ #18023]	2018-06-27 19:20:37 +02:00
allocate_once.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ar.h	Add missing header wrappers under include/	2019-02-16 08:25:16 +01:00
argp-fmtstream.h	Mark internal argp functions with attribute_hidden [BZ #18822]	2017-10-01 15:10:27 -07:00
argp.h	ldbl-opt: Add argp_error and argp_failure (bug 23983)	2019-03-01 15:21:32 -03:00
argz.h	Use libc_hidden_* for argz_next, __argz_next (bug 15105).	2018-02-15 21:00:02 +00:00
array_length.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
assert.h	Introduce NO_RTLD_HIDDEN, make hurd use it instead of NO_HIDDEN	2017-10-03 01:33:38 +02:00
atomic.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
byteswap.h	Update.	1998-04-10 10:52:25 +00:00
complex.h	float128: Add private _Float128 declarations for libm.	2017-05-15 10:23:28 -03:00
cpio.h	Add more headers to include/ for conform tests.	2014-12-11 21:41:30 +00:00
crypt.h	Add include/crypt.h.	2016-10-28 22:40:16 -04:00
ctype.h	Use libc_hidden_* for tolower, toupper (bug 15105).	2018-02-23 13:54:53 +00:00
des.h	Update.	1998-03-24 10:39:42 +00:00
dirent.h	hurd: keep only required PLTs in ld.so	2020-11-11 02:36:22 +01:00
dlfcn.h	Remove --enable-obsolete-nsl configure flag	2020-07-08 17:25:57 +02:00
dso_handle.h	Mark __dso_handle as hidden [BZ #18822]	2017-09-26 16:53:44 -07:00
elf.h	elf: Refuse to dlopen PIE objects [BZ #24323]	2019-06-18 16:42:10 +02:00
endian.h	Update.	2001-03-30 05:34:59 +00:00
envz.h	Installed header hygiene (BZ#20366): Test of installed headers.	2016-09-23 08:43:56 -04:00
err.h	ldbl-128ibm-compat: PLT redirects for using ldbl redirects internally	2020-03-25 14:34:23 -05:00
errno.h	Remove tls.h inclusion from internal errno.h	2020-11-13 12:59:19 -03:00
error.h	ldbl-opt: Add error and error_at_line (bug 23984)	2019-03-01 15:26:36 -03:00
execinfo.h	Installed header hygiene (BZ#20366): Test of installed headers.	2016-09-23 08:43:56 -04:00
fcntl.h	Fix Linux fcntl OFD locks for non-LFS architectures (BZ#20251)	2018-06-26 13:22:53 -03:00
features.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
fenv.h	Move fenv.h soft-float inlines from fenv_private.h to include/fenv.h.	2018-09-04 19:52:06 +00:00
file_change_detection.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
filename.h	Import filename.h from gnulib	2021-01-05 11:33:16 -03:00
float.h	Make totalorder and totalordermag functions take pointer arguments.	2019-08-15 15:18:34 +00:00
fmtmsg.h	Add more headers to include/ for conform tests.	2014-12-11 21:41:30 +00:00
fnmatch.h	First steps to get conformtest fully working	2012-02-25 23:18:39 -05:00
fpu_control.h	Hide internal __setfpucw function [BZ #18822]	2017-10-01 17:52:15 -07:00
fstab.h	Add missing header wrappers under include/	2019-02-16 08:25:16 +01:00
fts.h	Add missing header wrappers under include/	2019-02-16 08:25:16 +01:00
ftw.h	Update.	1997-06-21 02:59:26 +00:00
gconv.h	Update.	1997-11-18 02:50:07 +00:00
getopt_int.h	Update.	2004-03-09 10:36:53 +00:00
getopt.h	getopt: remove USE_NONOPTION_FLAGS	2017-04-07 07:45:53 -04:00
glob.h	Hide internal __glob64 function [BZ #18822]	2017-10-01 18:02:10 -07:00
gmp.h	Mark internal gmp functions with attribute_hidden [BZ #18822]	2017-10-01 15:15:30 -07:00
gnu-versions.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
grp-merge.h	NSS: Implement group merging support.	2016-04-29 22:18:21 -04:00
grp.h	nss_files: Consolidate line parse declarations in <nss_files.h>	2020-07-21 07:33:20 +02:00
gshadow.h	nss_files: Consolidate line parse declarations in <nss_files.h>	2020-07-21 07:33:20 +02:00
iconv.h	Update.	1999-08-21 00:38:15 +00:00
idx.h	Import idx.h from gnulib	2021-01-05 11:33:16 -03:00
ifaddrs.h	hurd: Fix getifaddrs' and freeifaddrs' symbol exposition	2017-09-28 01:05:18 +02:00
ifreq.h	Hide internal __ifreq function [BZ #18822]	2017-10-01 17:35:46 -07:00
ifunc-impl-list.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
inline-hashtab.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
intprops.h	Sync intprops.h with gnulib	2021-01-04 08:42:04 -03:00
inttypes.h	Make strtoimax, strtoumax, wcstoimax, wcstoumax into aliases	2020-12-08 18:15:27 +00:00
langinfo.h	Add first fixes for conformtest for POSIX2008	2012-02-26 21:32:56 -05:00
lastlog.h	Add missing header wrappers under include/	2019-02-16 08:25:16 +01:00
libc-diag.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
libc-internal.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
libc-pointer-arith.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
libc-symbols.h	Make libc symbols hidden in static PIE	2021-01-21 15:55:17 +00:00
libgen.h	Update.	1997-06-21 02:59:26 +00:00
libintl.h	Document the internal _ and N_ macros	2020-05-06 17:35:40 +02:00
limits.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
link.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
list_t.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
list.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
locale.h	First steps to get conformtest fully working	2012-02-25 23:18:39 -05:00
loop_unroll.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
malloc.h	malloc: Basic support for memory tagging in the malloc() family	2020-12-21 15:25:25 +00:00
math-narrow-eval.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
math.h	float128: use builtin_signbitf128 always	2020-05-04 13:18:45 -05:00
mcheck.h	Installed header hygiene (BZ#20366): Test of installed headers.	2016-09-23 08:43:56 -04:00
memory.h	Update.	1997-06-21 02:59:26 +00:00
mntent.h	Hide internal __hasmntopt function [BZ #18822]	2017-10-01 17:37:42 -07:00
monetary.h	Rename __LONG_DOUBLE_USES_FLOAT128 to __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI	2020-04-30 08:52:08 -05:00
mqueue.h	y2038: linux: Provide __mq_timedreceive_time64 implementation	2020-04-06 23:05:11 +02:00
netdb.h	y2038: Convert gai_suspend to support 64 bit time	2020-12-04 10:04:38 +01:00
netgroup.h	Update.	1997-06-21 02:59:26 +00:00
nl_types.h	Update.	1997-12-22 20:53:38 +00:00
nss_files.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
nss.h	nss: Export nscd hash function as __nss_hash [BZ #22459]	2017-11-23 14:08:11 +01:00
nsswitch.h	Update.	1997-06-21 02:59:26 +00:00
obstack.h	Installed header hygiene (BZ#20366): Test of installed headers.	2016-09-23 08:43:56 -04:00
plural-exp.h	Hide internal __gettextparse function [BZ #18822]	2017-10-01 17:31:05 -07:00
poll.h	Update.	2000-08-21 16:02:48 +00:00
printf.h	Rename __LONG_DOUBLE_USES_FLOAT128 to __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI	2020-04-30 08:52:08 -05:00
pthread.h	Fix mq_notify pthread_barrier_* namespace (bug 18544).	2015-06-17 20:16:56 +00:00
pty.h	Installed header hygiene (BZ#20366): Test of installed headers.	2016-09-23 08:43:56 -04:00
pwd.h	nss_files: Consolidate line parse declarations in <nss_files.h>	2020-07-21 07:33:20 +02:00
random-bits.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
re_comp.h	Add missing header wrappers under include/	2019-02-16 08:25:16 +01:00
regex.h	Hide internal regex functions [BZ #18822]	2017-10-01 15:53:15 -07:00
regexp.h	Add missing header wrappers under include/	2019-02-16 08:25:16 +01:00
resolv.h	Obsolete p_secstodate.	2017-11-22 22:21:10 +00:00
rounding-mode.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
rtld-malloc.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sched.h	Add hidden prototypes for __sched_getparam, __sched_getscheduler	2020-02-20 08:57:01 +01:00
scratch_buffer.h	malloc: Add scratch_buffer_dupfree	2021-01-05 11:33:16 -03:00
search.h	misc: Add twalk_r function	2019-05-02 11:42:51 +02:00
set-hooks.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
setjmp.h	hurd: keep only required PLTs in ld.so	2020-11-11 02:36:22 +01:00
sgtty.h	Update.	1997-06-21 02:59:26 +00:00
shadow.h	nss_files: Consolidate line parse declarations in <nss_files.h>	2020-07-21 07:33:20 +02:00
shlib-compat.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
signal.h	hurd: keep only required PLTs in ld.so	2020-11-11 02:36:22 +01:00
spawn.h	posix: Use posix_spawn for wordexp	2019-10-09 17:48:41 -03:00
stab.h	Update.	1997-06-21 02:59:26 +00:00
stackinfo.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
stap-probe.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
stdc-predef.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
stdint.h	Move inttypes.h and stdint.h to stdlib.	2019-03-13 09:42:09 -04:00
stdio_ext.h	Installed header hygiene (BZ#20366): Test of installed headers.	2016-09-23 08:43:56 -04:00
stdio.h	libio: Remove __libc_readline_unlocked	2020-07-21 07:34:50 +02:00
stdlib.h	hurd: keep only required PLTs in ld.so	2020-11-11 02:36:22 +01:00
string.h	string: Enable __FORTIFY_LEVEL=3	2020-12-31 16:55:21 +05:30
strings.h	Update.	1997-06-21 02:59:26 +00:00
struct___timeb64.h	time: Add 64-bit time_t support for ftime	2020-10-27 09:54:50 -03:00
struct___timespec64.h	y2038: include: Move struct __timespec64 definition to a separate file	2020-04-06 23:05:11 +02:00
struct___timeval64.h	y2038: include: Move struct __timeval64 definition to a separate file	2020-05-05 19:36:25 +02:00
stubs-prologue.h	* sysdeps/generic/bits/libc-tsd.h [USE___THREAD]: Conditional	2002-10-11 10:52:20 +00:00
syscall.h	Update.	1997-06-21 02:59:26 +00:00
sysexits.h	Update.	1997-06-21 02:59:26 +00:00
syslog.h	Update.	1997-06-21 02:59:26 +00:00
tar.h	Update.	1997-06-21 02:59:26 +00:00
termios.h	Hide internal __tcgetattr function [BZ #18822]	2017-10-01 17:48:24 -07:00
tgmath.h	Update.	1998-09-06 23:45:24 +00:00
time.h	y2038: linux: Provide __time64 implementation	2020-10-19 16:01:37 +02:00
ttyent.h	Installed header hygiene (BZ#20366): Test of installed headers.	2016-09-23 08:43:56 -04:00
uchar.h	First steps to get conformtest fully working	2012-02-25 23:18:39 -05:00
ucontext.h	Update.	1999-10-12 18:17:41 +00:00
ulimit.h	First steps to get conformtest fully working	2012-02-25 23:18:39 -05:00
unistd.h	hurd: keep only required PLTs in ld.so	2020-11-11 02:36:22 +01:00
utime.h	First steps to get conformtest fully working	2012-02-25 23:18:39 -05:00
utmp.h	Mark internal utmp functions with attribute_hidden [BZ #18822]	2017-10-01 15:51:56 -07:00
values.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
verify.h	posix: Sync regex with gnulib	2019-11-06 09:20:52 -03:00
wait.h	Add missing header wrappers under include/	2019-02-16 08:25:16 +01:00
wchar.h	Rename __LONG_DOUBLE_USES_FLOAT128 to __LDOUBLE_REDIRECTS_TO_FLOAT128_ABI	2020-04-30 08:52:08 -05:00
wctype.h	Remove __need macros from stdio.h and wchar.h.	2017-06-08 13:58:17 -04:00
wordexp.h	First steps to get conformtest fully working	2012-02-25 23:18:39 -05:00