2002-12-31 Ulrich Drepper <drepper@redhat.com>
* string/string-inlines.c: Define __memcpy_g and __strchr_g macros
to avoid using the exported symbols. Define aliases with the
original names separately.
* include/time.h: Add libc_hidden_proto for __strftime_l.
* include/wchar.h: Add libc_hidden_proto for __wcsftime_l.
* time/strftime.c: Always use libc_hidden_def if _LIBC.
* libio/libioP.h: Add libc_hidden_proto for _IO_file_open.
* libio/fileops.c: Add libc_hidden_def for _IO_file_open.
* malloc/mtrace.c: Add libc_hidden_proto and libc_hidden_def for
tr_break.
* csu/Makefile (routines): Add dso_handle.
* csu/dso_handle.c: New file.
* include/wctype.h: Define iswalnum with libc_hidden_proto.
* include/signal.h: Define raise with libc_hidden_proto.
* sysdeps/unix/sysv/linux/fexecve.c (fexecve): Use __snprintf and
__execve instead of snprintf and execve.
2002-10-15 Jakub Jelinek <jakub@redhat.com>
* include/resolv.h (__libc_res_nquery, __libc_res_nsearch,
__libc_res_nsend): New prototypes.
* resolv/res_query.c (QUERYSIZE): Define.
(__libc_res_nquery): Renamed from res_nquery. Added answerp
argument. Allocate only QUERYSIZE bytes first, if res_nmkquery
fails use MAXPACKET buffer. Call __libc_res_nsend instead of
res_nsend, pass answerp.
(res_nquery): Changed into wrapper around __libc_res_nquery.
(__libc_res_nsearch): Renamed from res_nsearch. Added answerp
argument. Call __libc_res_nquerydomain and __libc_res_nquery
instead of the non-__libc_ variants, pass them answerp.
(res_nsearch): Changed into wrapper around __libc_res_nsearch.
(__libc_res_nquerydomain): Renamed from res_nquerydomain.
Added answerp argument. Call __libc_res_nquery instead of
res_nquery, pass answerp.
(res_nquerydomain): Changed into wrapper around
__libc_res_nquerydomain.
* resolv/res_send.c: Include sys/ioctl.h.
(MAXPACKET): Define.
(send_vc): Change arguments. Reallocate answer buffer if it is
too small.
(send_dg): Likewise.
(__libc_res_nsend): Renamed from res_nsend. Added ansp argument.
Reallocate answer buffer if it is too small and hooks are in use.
Adjust calls to send_vc and send_dg.
(res_nsend): Changed into wrapper around __libc_res_nsend.
* resolv/nss_dns/dns-host.c (_nss_dns_gethostbyname2_r): Allocate
just 1K answer buffer on the stack, use __libc_res_nsearch instead
of res_nsearch.
(_nss_dns_gethostbyaddr_r): Similarly with __libc_res_nquery.
* resolv/nss_dns/dns-network.c (_nss_dns_getnetbyaddr_r): Likewise.
(_nss_dns_getnetbyname_r): Similarly with __libc_res_nsearch.
* resolv/gethnamaddr.c (gethostbyname2): Likewise.
(gethostbyaddr): Similarly with __libc_res_nquery.
* resolv/Versions (libresolv): Export __libc_res_nquery and
__libc_res_nsearch at GLIBC_PRIVATE.
changed from [USE_TLS && HAVE___THREAD].
* sysdeps/i386/dl-machine.h (elf_machine_type_class, elf_machine_rel):
Disable TLS relocs if [RTLD_BOOTSTRAP && !USE___THREAD].
* sysdeps/x86_64/dl-machine.h
(elf_machine_type_class, elf_machine_rela): Likewise.
* sysdeps/sh/dl-machine.h (elf_machine_type_class, elf_machine_rela):
Likewise.
* include/link.h (struct link_map): Remove member l_tls_tp_initialized.
* elf/rtld.c (_dl_start_final, dl_main): Don't use it.
(_dl_start): Conditionalize PT_TLS check on [USE___THREAD].
* sysdeps/i386/dl-tls.h (__TLS_GET_ADDR): Use ___tls_get_addr_internal
instead of ___tls_get_addr.
(___tls_get_addr_internal): Add attribute_hidden to decl.
* sysdeps/generic/ldsodefs.h (struct rtld_global): New variable
_dl_error_catch_tsd.
* elf/rtld.c (startup_error_tsd): New function.
(dl_main): Point _dl_error_catch_tsd at that.
* elf/dl-error.c: Don't use libc-tsd.h for DL_ERROR,
use new function pointer instead.
* elf/dl-tsd.c: New file.
* elf/Makefile (routines): Add it.
2002-10-07 Roland McGrath <roland@redhat.com>
* elf/dl-misc.c (_dl_debug_vdprintf): Use INTERNAL_SYSCALL macro for
writev if it's available. Otherwise if [RTLD_PRIVATE_ERRNO] then
take _dl_load_lock around calling __writev.
* sysdeps/unix/sysv/linux/i386/sysdep.h (INTERNAL_SYSCALL): New macro.
(INLINE_SYSCALL): Use that.
* sysdeps/generic/dl-sysdep.h: New file.
* sysdeps/mach/hurd/dl-sysdep.h: New file.
* sysdeps/generic/ldsodefs.h: Include <dl-sysdep.h>.
* include/errno.h [IS_IN_rtld]: Include <dl-sysdep.h> to define ...
[RTLD_PRIVATE_ERRNO]: Use a hidden global variable for errno and
access it directly.
* elf/dl-minimal.c (__errno_location): Removed.
* sysdeps/unix/i386/sysdep.S (__syscall_errno) [RTLD_PRIVATE_ERRNO]:
Use GOTOFF access for errno.
* sysdeps/unix/sysv/linux/i386/sysdep.h
[RTLD_PRIVATE_ERRNO] (SYSCALL_ERROR_HANDLER): Likewise.
* sysdeps/unix/x86_64/sysdep.S (__syscall_errno) [RTLD_PRIVATE_ERRNO]:
Use PC-relative access for errno.
* sysdeps/unix/sysv/linux/x86_64/sysdep.h
[RTLD_PRIVATE_ERRNO] (SYSCALL_ERROR_HANDLER): Likewise.
* include/tls.h: New file.
(USE___THREAD): New macro.
Define to 1 under [USE_TLS && HAVE___THREAD] and only when compiling
libc or libpthread.
* sysdeps/unix/sysv/linux/i386/sysdep.h [USE___THREAD]: Conditional
changed from [USE_TLS && HAVE___THREAD].
* sysdeps/unix/sysv/linux/x86_64/sysdep.h: Likewise.
* sysdeps/unix/i386/sysdep.S: Likewise.
* sysdeps/unix/x86_64/sysdep.S: Likewise.
* include/errno.h: Likewise.
* include/netdb.h: Likewise.
* include/resolv.h: Likewise.
* sysdeps/generic/errno.c: New file.
* csu/Makefile (aux): New variable, list errno.
* sysdeps/unix/sysv/linux/i386/sysdep.S (errno, _errno): Remove defns.
* sysdeps/unix/sysv/linux/m68k/sysdep.S: Likewise.
* sysdeps/unix/sysv/linux/x86_64/sysdep.S: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-64/sysdep.S: Likewise.
* sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S: Likewise.
* sysdeps/unix/sysv/linux/arm/sysdep.S: Likewise.
* sysdeps/unix/sysv/linux/cris/sysdep.S: Likewise.
* sysdeps/unix/sysv/linux/hppa/sysdep.c: Likewise.
* sysdeps/unix/sysv/linux/ia64/sysdep.S: Likewise.
* sysdeps/unix/sysv/linux/powerpc/sysdep.c: Likewise.
* sysdeps/unix/sysv/linux/sparc/sysdep.S: Likewise.
* sysdeps/unix/sysv/linux/sh/sysdep.S: Likewise.
* sysdeps/unix/alpha/sysdep.S: Likewise.
* sysdeps/generic/start.c: Likewise.
* sysdeps/unix/start.c: Likewise.
* sysdeps/unix/arm/start.c: Likewise.
* sysdeps/unix/bsd/ultrix4/mips/start.S: Likewise.
* sysdeps/unix/sparc/start.c: Likewise.
* sysdeps/unix/sysv/irix4/start.c: Likewise.
* sysdeps/unix/sysv/linux/mips/sysdep.S: File removed.
* manual/search.texi (Tree Search Function, Hash Search Function):
Mention search.h clearly.
2002-10-05 Roland McGrath <roland@redhat.com>
* elf/dl-fxstat64.c: File removed.
* elf/dl-xstat64.c: File removed.
* elf/Makefile (rtld-routines): Remove them.
* sysdeps/unix/sysv/linux/xstat64.c: Remove RTLD_STAT64 conditionals.
Instead, use strong_alias instead of versioned_symbol in the
!SHLIB_COMPAT case.
* sysdeps/unix/sysv/linux/fxstat64.c: Likewise.
* sysdeps/unix/sysv/linux/lxstat64.c: Likewise.
* include/shlib-compat.h
(SHLIB_COMPAT): Require that IS_IN_##lib be defined nonzero.
[! NOT_IN_libc] (IS_IN_libc): Define it.
* cppflags-iterator.mk (CPPFLAGS-$(cpp-src)): Use -Dx=1 not just -Dx.
* elf/Makefile (CPPFLAGS-.os): Likewise.
* sunrpc/rpc_main.c (main): Don't declare with noreturn attribute.
Return the status instead of calling exit.
* Makeconfig (CFLAGS): Prepend -std=gnu99.
* Makerules (+make-deps): Use $(CFLAGS) only for .c sources.
Remove superfluous rm command, whose @ plus make bugs hid
all these commands from the make output.
* include/stubs-prologue.h: New file. Give #error under #ifdef _LIBC.
* Makefile ($(inst_includedir)/gnu/stubs.h): Depend on it.
Use that file's contents instead of literal echo's for the prologue.
* include/features.h: Include <gnu/stubs.h> unconditionally.
* include/gnu/stubs.h: New file.
2002-09-30 Roland McGrath <roland@redhat.com>
* elf/rtld-Rules: New file.
* elf/Makefile ($(objpfx)librtld.map, $(objpfx)librtld.mk,
$(objpfx)rtld-libc.a): New targets.
(generated): Add them.
(reloc-link): Remove -o $@ from the variable.
($(objpfx)dl-allobjs.os): Add -o $@ after $(reloc-link).
(distribute): Add rtld-Rules.
(CPPFLAGS-.os): Define this instead of CFLAGS-.os.
* Makerules ($(+sysdir_pfx)sysd-rules): Emit rules for rtld-% targets.
(common-mostlyclean, common-clean): Clean up rtld-* files.
* sysdeps/unix/make-syscalls.sh: Add rtld-*.os target name to rules.
2002-10-09 Ulrich Drepper <drepper@redhat.com>
* Versions.def (libc): Add GLIBC_2.3.1.
(libpthread): Add GLIBC_2.3.1.
* include/signal.h: Add libc_hidden_proto for __sigwait, __sigwaitinfo,
and __sigtimedwait.
* signal/Versions: Add __sigtimedwait, __sigwait, and __sigwaitinfo.
* sysdeps/unix/sysv/linux/sigtimedwait.c (__sigtimedwait): Add
libc_hidden_def.
* sysdeps/unix/sysv/linux/sigwait.c (__sigwait): Likewise.
* sysdeps/unix/sysv/linux/sigwaitinfo.c (__sigwaitinfo): Likewise.
* include/sys/msg.h: Declare __libc_msgrcv and __libc_msgsnd.
* sysdeps/unix/sysv/linux/msgrcv.c (__msgrcv): Rename to __libc_msgrcv
and make old name an alias.
* sysdeps/unix/sysv/linux/msgsnd.c (__msgsnd): Rename to __libc_msgsnd
and make old name an alias.
* sysvipc/Versions (libc) [GLIBC_PRIVATE]: Add __libc_msgrcv and
__libc_msgsnd.
* include/sys/uio.h: Declare __libc_readv and __libc_writev.
* misc/Versions (libc) [GLIBC_PRIVATE]: Add __libc_readv and
__libc_writev.
* sysdeps/generic/readv.c (__readv): Rename to __libc_readv and make
old name an alias.
* sysdeps/posix/readv.c: Likewise
* sysdeps/unix/sysv/aix/readv.c: Likewise.
* sysdeps/unix/sysv/linux/readv.c: Likewise.
* sysdeps/generic/writev.c (__writev): Rename to __libc_writev and make
old name an alias.
* sysdeps/posix/writev.c: Likewise
* sysdeps/unix/sysv/aix/writev.c: Likewise.
* sysdeps/unix/sysv/linux/writev.c: Likewise.
* include/sys/wait.h: Declare __waitid.
* posix/Versions (libc) [GLIBC_PRIVATE]: Add __waitid.
* sysdeps/generic/waitid.c (waitid): Rename to __waitid and make old
name an alias.
* sysdeps/posix/waitid.c: Likewise.
* sysdeps/unix/sysv/aix/waitid.c: Likewise.
* sysdeps/unix/sysv/linux/syscalls.list: Add creat syscall.
2002-10-07 Jakub Jelinek <jakub@redhat.com>
* include/alloca.h (__libc_use_alloca, __libc_alloca_cutoff): New
prototypes.
(__MAX_ALLOCA_CUTOFF): Define.
Include allocalim.h.
* resolv/nss_dns/dns-host.c (_nss_dns_gethostbyname2_r,
_nss_dns_gethostbyaddr_r): Use alloca or malloc to allocate
host_buffer depending on __libc_use_alloca.
* resolv/nss_dns/dns-network.c (_nss_dns_getnetbyname_r,
_nss_dns_getnetbyaddr_r): Use alloca or malloc to allocate
net_buffer depending on __libc_use_alloca.
* resolv/res_query.c (res_nquery): Use alloca or malloc to allocate
buf depending on __libc_use_alloca.
* resolv/gethnamaddr.c (gethostbyname2, gethostbyaddr): Likewise.
* stdio-common/vfprintf.c (vfprintf): Use __libc_use_alloca
instead of hardcoded constants.
Pass proper size argument to alloca and compute end for wide char
version.
* stdio-common/printf_fp.c (__printf_fp): Use __libc_use_alloca
instead of hardcoded constants.
* string/strcoll.c (strcoll): Likewise.
* string/strxfrm.c (strxfrm): Likewise.
* sysdeps/posix/readv.c (__readv): Likewise.
* sysdeps/posix/writev.c (__writev): Likewise.
* sysdeps/generic/allocalim.h: New file.
file-specific variable override so it compiles properly when using
--with-headers.
* NEWS: Added item for powerpc64-linux port.
* include/libc-symbols.h [HAVE_ASM_GLOBAL_DOT_NAME]
(C_SYMBOL_DOT_NAME): Insure that C_SYMBOL_DOT_NAME works for
various gcc versions. Dot names required for powerpc64.
[HAVE_ASM_GLOBAL_DOT_NAME] (_weak_extern): Add .weakext '.'ed symbol.
[HAVE_ASM_GLOBAL_DOT_NAME] (strong_alias): Add .global
C_SYMBOL_DOT_NAME(alias).
[HAVE_ASM_GLOBAL_DOT_NAME] (strong_data_alias): New macro. Same as
original strong_alias macro.
[HAVE_ASM_GLOBAL_DOT_NAME] (weak_alias): Add .weakext/.weak
C_SYMBOL_DOT_NAME(alias).
[HAVE_ASM_GLOBAL_DOT_NAME] (_symbol_version): Add .symver '.'ed name.
[HAVE_ASM_GLOBAL_DOT_NAME] (_default_symbol_version): Add .symver
'.'ed name.
Add comments on libc_hidden_data_def and libc_hidden_data_weak usage.
[HAVE_ASM_GLOBAL_DOT_NAME] (hidden_dot_def1): New macro. Generate
.global C_SYMBOL_DOT_NAME(alias). Otherwise an empty macro.
(hidden_def): Append hidden_dot_def1 macro to definition.
(hidden_ver): Append hidden_dot_def1 macro to definition.
(hidden_data_def): New macro. Same as original hidden_def macro.
(hidden_data_ver): New macro. Same as original hidden_ver macro.
[HAVE_ASM_GLOBAL_DOT_NAME] (hidden_dot_weak1): New macro. Generate
.weakext C_SYMBOL_DOT_NAME(alias). Otherwise an empty macro.
(hidden_weak): Append hidden_dot_weak1 macro to definition.
(hidden_data_weak): New macro. Same as original hidden_weak macro.
[HAVE_ASM_GLOBAL_DOT_NAME] (HIDDEN_JUMPTARGET): Define as .__GI_name.
Otherwise defined as __GI_name.
(libc_hidden_data_def): New macro. Use hidden_data_def.
(libc_hidden_data_weak): New macro. Use hidden_data_weak.
(libc_hidden_data_ver): New macro. Use hidden_data_ver.
(rtld_hidden_data_def): New macro. Use hidden_data_def.
(rtld_hidden_data_weak): New macro. Use hidden_data_weak.
(rtld_hidden_data_ver): New macro. Use hidden_data_ver.
(libm_hidden_data_def): New macro. Use hidden_data_def.
(libm_hidden_data_weak): New macro. Use hidden_data_weak.
(libm_hidden_data_ver): New macro. Use hidden_data_ver.
* inet/in6_addr.c: Replace libc_hidden_def with libc_hidden_data_def.
* include/libc-symbols.h: Change *hidden_proto macros to accept
option parameters and pass those to the attribute definition.
* include/unistd.h (_exit): Add __noreturn__ to libc_hidden_proto call.
* sysdeps/mach/hurd/_exit.c: Add libc_hidden_def.
* sysdeps/generic/_exit.c: Likewise.
2002-09-12 Jakub Jelinek <jakub@redhat.com>
* elf/rtld.c (struct dl_start_final_info): New.
(_dl_start_final): Change second argument to struct
dl_start_final_info *. Set start_time from info.
(_dl_start): Remove bootstrap_map variable, add info.
Define bootstrap_map as macro. If not DONT_USE_BOOTSTRAP_MAP,
store HP_TIMING_NOW result into info.start_time.
2002-09-14 Ulrich Drepper <drepper@redhat.com>
* include/unistd.h: Declare __exit_thread.
* sysdeps/generic/libc-start.c: Remove dummy_addr.
Wrap call to main in setjmp if HAVE_CANCELBUF is defined.
* sysdeps/unix/sysv/linux/exit-thread.S: New file.
* sysdeps/unix/sysv/linux/_exit.c: New file.
* sysdeps/unix/sysv/linux/i386/_exit.S: New file.
* sysdeps/unix/sysv/linux/Makefile [subdir==posix] (sysdep_routines):
Add exit-thread.
* configure.in: Add dl_iterate_phdr to test using -nostdlib.
Variable declarations removed.
(__ctype_b_loc, __ctype_toupper_loc, __ctype_tolower_loc): Declare
these functions to replace them.
(__isctype, tolower, toupper, _tolower, _toupper): Use those accessor
functions plus an indirection rather than the old global variables.
* include/ctype.h (__isctype, tolower, _tolower, toupper, _toupper):
Macros removed.
(__ctype_b_loc, __ctype_toupper_loc, __ctype_tolower_loc): New extern
inline functions.
* ctype/ctype-info.c: Revert last reversion back the other way.
Define tsd vars CTYPE_B, CTYPE_TOLOWER, CTYPE_TOUPPER.
Define real function versions of include/ctype.h inlines here.
* ctype/Versions (libc: GLIBC_2.3): Add __ctype_b_loc,
__ctype_tolower_loc, __ctype_toupper_loc.
* locale/lc-ctype.c: Revert last reversion back the other way.
(_nl_postload_ctype): If current thread uses the global locale,
update its tsd vars.
* locale/uselocale.c (__uselocale): Update tsd vars from new locale.
* hurd/hurd/threadvar.h (enum __hurd_threadvar_index): Add CTYPE_B,
CTYPE_TOLOWER, CTYPE_TOUPPER.
* sysdeps/generic/bits/libc-tsd.h (__libc_tsd_address): New macro.
* sysdeps/mach/hurd/bits/libc-tsd.h (__libc_tsd_address): Renamed
from __libc_tsd_threadvar_location.
(__libc_tsd_set, __libc_tsd_get): Update uses.
* ctype/ctype.h: Undo the patch before the last one. Put back the
macro definitions for the standard functions to access the
classification and mapping arrays.
* include/ctype.h: Partly revert last patch. Move the macro
definitions for the exported functions back to the public header.
#undef all the macros defined here before redefining.
* ctype/ctype-info.c: Revert last patch.
* locale/lc-ctype.c: Revert last patch.
* sysdeps/mach/hurd/pwrite64.c: No libc_hidden_def (__libc_pwrite64).
* sysdeps/mach/hurd/dl-sysdep.c (__GI_abort): Define alias for abort.
* include/assert.h (__assert_perror_fail): Declare it, do hidden_proto.
* assert/assert-perr.c: Add libc_hidden_def.
* elf/dl-minimal.c [! NDEBUG] (__assert_perror_fail): New function.
* sysdeps/gnu/errlist-compat.awk: Don't fail if there are no versions
found at all.
* sysdeps/gnu/Versions: File removed. Moved all #errlist-compat
sys_errlist stuff to ...
* sysdeps/unix/sysv/linux/Versions: ... here.
* mach/mach.h: Include <features.h>.
2002-08-28 Ulrich Drepper <drepper@redhat.com>
* include/wchar.h: Declare __mbsrtowcs_l.
* wcsmbs/Makefile (routines): Add mbsrtowcs_l.
* wcsmbs/mbsrtowcs.c: Add support for compilation with
USE_IN_EXTENDED_LOCALE_MODEL.
* wcsmbs/mbsrtowcs_l: New file.
* wcsmbs/wcsmbsload.c (__wcsmbs_to_wc): Renamed from to_wc. Don't
define as static. Change all uses.
(__wcsmbs_getfct): Renamed from getfct. Don't define as static.
Change all callers.
* wcsmbs/wcsmbsload.h: Declare __wcsmbs_to_wc and __wcsmbs_getfct.
* time/strftime.c: When translating for the extended locale model
use the _l functions.
* time/Makefile (tests): Add tst-ftime_l.
* time/tst-ftime_l.c: New file.
* locale/locale.h (__newlocale, __duplocale, __freelocale,
__uselocale): Don't declare these any more.
* include/locale.h (__uselocale): Declare here instead, using __typeof.
2002-08-27 Ulrich Drepper <drepper@redhat.com>
* sysdeps/arm/Dist: Add bits/link.h.
* sunrpc/Makefile: Distribute thrsvc.
* stdio-common/Makefile: Remove more left-overs from old stdio.
* include/linewrap.h: Removed.
* libio/bug-mmap-fflush.c: Rewrite to not touch source directory.
* intl/Makefile (distribute): Add plural-eval.c.
* stdio-common/Makefile (headers): Remove bits/stdio_lim.h. This
file isn't distributed. Add special rules to install bits/stdio_lim.h.
* Make-dist: Remove traces of old stdio.
* Makeconfig: Likewise.
* locale/Makefile (localedef-aux): New variable. Only md5
assigned to it. These files are not ddistributed in this directory.
* sysdeps/unix/sysv/linux/s390/Dist: Add sys/procfs.h.
* sysdeps/unix/sysv/linux/s390/s390-64/Dist: Remove sys/procfs.h.
* sysdeps/unix/sysv/linux/s390/s390-32/Dist: Likewise.
* sysdeps/unix/sysv/linux/Dist: Remove sys/sendfile.h.
* sysdeps/mach/hurd/bits/errno.h: Regenerated.
* sysdeps/gnu/Versions: New file.
* sysdeps/unix/sysv/linux/Versions (libc: GLIBC_2.1): Remove
_sys_errlist; sys_errlist; _sys_nerr; sys_nerr; from here.
* sysdeps/gnu/Makefile ($(..)sysdeps/gnu/errlist-compat.c): New target.
($(objpfx)errlist.d): Depend on $(..)sysdeps/gnu/errlist-compat.c.
* sysdeps/gnu/errlist.awk: Make output define _sys_errlist_internal
and _sys_nerr_internal instead of anything else. Make it include
"errlist-compat.c" if [!NOT_IN_libc && !ERRLIST_NO_COMPAT].
Make it emit some asm magic if [EMIT_ERR_MAX].
* sysdeps/gnu/errlist.c: Regenerated.
* sysdeps/gnu/errlist-compat.awk: New file.
* sysdeps/gnu/errlist-compat.c: New file (generated).
* sysdeps/mach/hurd/errlist.c (ERRLIST_NO_COMPAT): New macro.
(_sys_errlist_internal): Define this as a macro for _hurd_errlist.
(_sys_nerr_internal): Define this is a macro for _hurd_nerr.
(SYS_ERRLIST, SYS_NERR): Macros removed.
(sys_nerr, _sys_nerr): Remove these weak aliases.
* sysdeps/unix/sysv/linux/errlist.c: File removed.
* sysdeps/unix/sysv/linux/errlist.h: File removed.
* sysdeps/unix/sysv/linux/arm/errlist.c: File removed.
* include/libc-symbols.h (declare_symbol): New macro.
* config.h.in (ASM_TYPE_DIRECTIVE_PREFIX): New #undef.
* configure.in: New check to define it.
* configure: Regenerated.
