Szabolcs Nagy 47618209d0 Use hidden visibility for early static PIE code ... Extern symbol access in position independent code usually involves GOT indirection which needs RELATIVE reloc in a static linked PIE. (On some targets this is avoided e.g. because the linker can relax a GOT access to a pc-relative access, but this is not generally true.) Code that runs before static PIE self relocation must avoid relying on dynamic relocations which can be ensured by using hidden visibility. However we cannot just make all symbols hidden: On i386, all calls to IFUNC functions must go through PLT and calls to hidden functions CANNOT go through PLT in PIE since EBX used in PIE PLT may not be set up for local calls to hidden IFUNC functions. This patch aims to make symbol references hidden in code that is used before and by _dl_relocate_static_pie when building a static PIE libc. Note: for an object that is used in the startup code, its references and definition may not have consistent visibility: it is only forced hidden in the startup code. This is needed for fixing bug 27072. Co-authored-by: H.J. Lu <hjl.tools@gmail.com> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>		2021-01-21 15:55:01 +00:00
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bits	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sys	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
__read_tp.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
arch-syscall.h	Update syscall lists for Linux 5.10.	2020-12-16 02:08:52 +00:00
c++-types.data	AArch64: Consolidate nptl/ subdirectories under linux/...	2014-06-26 09:29:24 -07:00
clone.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
configure	LIBC_SLIBDIR_RTLDDIR: substitute arguments in single quotes	2018-01-25 17:20:28 +01:00
configure.ac	Refactor handling of /lib64 etc. cases, move out of sysdeps/gnu/configure.ac.	2014-07-17 14:35:48 +00:00
cpu-features.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
cpu-features.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-cache.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-procinfo.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-procinfo.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
dl-static.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
getcontext.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
gettimeofday.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
Implies	NPTL is no longer an add-on!	2014-07-07 09:29:06 -07:00
ioctl.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
jmp_buf-macros.h	Add jmp_buf-macros.h	2017-11-09 05:10:03 -08:00
kernel_rt_sigframe.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
kernel-features.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ld.abilist	ld.so: Do not export free/calloc/malloc/realloc functions [BZ #25486]	2020-02-15 11:01:23 +01:00
ldconfig.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ldsodefs.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
libanl.abilist	Ignore absolute symbols in ABI tests.	2018-05-04 15:46:32 +00:00
libBrokenLocale.abilist	Ignore absolute symbols in ABI tests.	2018-05-04 15:46:32 +00:00
libc-__read_tp.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
libc-start.c	Use hidden visibility for early static PIE code	2021-01-21 15:55:01 +00:00
libc.abilist	Remove mknod wrapper functions, move them to symbols	2020-10-09 17:02:06 -03:00
libcrypt.abilist	Ignore absolute symbols in ABI tests.	2018-05-04 15:46:32 +00:00
libdl.abilist	Ignore absolute symbols in ABI tests.	2018-05-04 15:46:32 +00:00
libm.abilist	New exp10f version without SVID compat wrapper	2020-06-19 12:08:47 -03:00
libnsl.abilist	Ignore absolute symbols in ABI tests.	2018-05-04 15:46:32 +00:00
libpthread.abilist	nptl: Move pthread_gettattr_np into libc	2020-05-20 20:27:49 +02:00
libresolv.abilist	Ignore absolute symbols in ABI tests.	2018-05-04 15:46:32 +00:00
librt.abilist	Ignore absolute symbols in ABI tests.	2018-05-04 15:46:32 +00:00
libthread_db.abilist	Ignore absolute symbols in ABI tests.	2018-05-04 15:46:32 +00:00
libutil.abilist	Ignore absolute symbols in ABI tests.	2018-05-04 15:46:32 +00:00
localplt.data	aarch64: Accept PLT calls to __getauxval within libc.so	2020-05-12 12:51:10 +02:00
makecontext.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
Makefile	elf: Move vDSO setup to rtld (BZ#24967)	2020-01-03 11:22:07 -03:00
readelflib.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
setcontext.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
shlib-versions	Remove configuration name patterns from shlib-versions.	2014-09-12 12:28:47 +00:00
sigaction.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sigcontextinfo.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
swapcontext.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
syscall.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sysconf.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sysdep.c	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
sysdep.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
ucontext_i.sym	aarch64: Revert the change of the __reserved member of mcontext_t	2018-01-24 11:53:30 +00:00
ucontext-internal.h	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00
Versions	Revert {send,sendm,recv,recvm}msg conformance changes	2016-06-10 11:58:16 -03:00
vfork.S	Update copyright dates with scripts/update-copyrights	2021-01-02 12:17:34 -08:00