Various code in glibc uses __strnlen instead of strnlen for namespace
reasons. However, __strnlen does not use libc_hidden_proto /
libc_hidden_def (as is normally done for any function defined and
called within the same library, whether or not exported from the
library and whatever namespace it is in), so the compiler does not
know that those calls are to a function within libc.
This patch uses libc_hidden_proto / libc_hidden_def with __strnlen.
On x86_64, it makes no difference to the installed stripped shared
libraries. On 32-bit x86, it causes __strnlen calls to go to the same
place as strnlen calls (the fallback strnlen implementation), rather
than through a PLT entry for the strnlen IFUNC; I'm not sure of the
logic behind when calls from within libc should use IFUNCs versus when
they should go direct to a particular function implementation, but
clearly it doesn't make sense for strnlen and __strnlen to be handled
differently in this regard.
Tested for x86_64 and x86 (testsuite, and comparison of installed
shared libraries as described above).
* string/strnlen.c [!STRNLEN] (__strnlen): Use libc_hidden_def.
* include/string.h (__strnlen): Use libc_hidden_proto.
* sysdeps/aarch64/strnlen.S (__strnlen): Use libc_hidden_def.
* sysdeps/i386/i686/multiarch/strnlen-c.c [SHARED]
(libc_hidden_def): Define __GI___strnlen as well as __GI_strnlen.
* sysdeps/powerpc/powerpc32/power4/multiarch/strnlen-power7.S
(libc_hidden_def): Undefine and redefine.
* sysdeps/powerpc/powerpc32/power4/multiarch/strnlen-ppc32.c
[SHARED] (libc_hidden_def): Define __GI___strnlen as well as
__GI_strnlen.
* sysdeps/powerpc/powerpc32/power7/strnlen.S (__strnlen): Use
libc_hidden_def.
* sysdeps/tile/tilegx/strnlen.c (__strnlen): Likewise.
2001-07-06 Paul Eggert <eggert@twinsun.com>
* manual/argp.texi: Remove ignored LGPL copyright notice; it's
not appropriate for documentation anyway.
* manual/libc-texinfo.sh: "Library General Public License" ->
"Lesser General Public License".
2001-07-06 Andreas Jaeger <aj@suse.de>
* All files under GPL/LGPL version 2: Place under LGPL version
2.1.
1998-04-07 08:51 Ulrich Drepper <drepper@cygnus.com>
* iconv/gconv.c: Take care for NULL arguments.
* iconv/gconv_dl.c: Make find_func function global.
* iconv/gconv_int.h: Add prototype for __gconv_find_func.
Add prototypes for ASCII conversion functions.
* iconv/gconv_simple.c: Add ASCII conversion functions.
* locale/C-ctype.c: Correct charset name.
* wcsmbs/Makefile (distribute): Add wcsmbsload.h.
(routines): Remove wmemrtowcs and wmemrtombs, add wcsnlen and
wcsmbsload.
* wcsmbs/btowc.c: Rewrite to use iconv functionality.
* wcsmbs/mbrtowc.c: Likewise.
* wcsmbs/mbsnrtowcs.c: Likewise.
* wcsmbs/mbsrtowcs.c: Likewise.
* wcsmbs/wcrtomb.c: Likewise.
* wcsmbs/wcsnrtombs.c: Likewise.
* wcsmbs/wcsrtombs.c: Likewise.
* wcsmbs/wctob.c: Likewise.
* wcsmbs/wchar.h: Add prototype for __wcslen, wcsnlen. Remove
prototypes for wmemr*.
* wcsmbs/wcslen.c: Rename to __wcslen and make wcslen weak alias.
* wcsmbs/wcsnlen.c: New file.
* wcsmbs/wcsmbsload.c: New file.
* wcsmbs/wcsmbsload.h: New file.
* manual/filesys.texi: Mention risks of tmpnam and mktemp.
* manual/install.texi: Describe some more critical points.
* string/string.h: Add prototype for __strnlen.
* string/strnlen.c: Rename to __strnlen and make strnlen weak alias.
* sysdeps/posix/mktemp.c: Rewrite to allow many more files and
much less predictable names.
* sysdeps/posix/mkstemp.c: Likewise.
1998-04-05 Andreas Jaeger <aj@arthur.rhein-neckar.de>
* manual/libc.texinfo (Top): Change "file namespace" to "local
namespace".
* manual/socket.texi: Change file namespace to local namespace.
(Out-of-Band Data): Remove unneeded variable link.
(Host Address Functions): Use uint32_t consequently and add a
number of clarifications for IPv4/IPv6, classless addresses.
(Internet Namespace): Added some paragraphs about IPv6.
Based on suggestions by Francesco Potorti` <F.Potorti@cnuce.cnr.it>.
1998-04-05 Philip Blundell <Philip.Blundell@pobox.com>
Update for draft-ietf-ipngwg-bsd-api-new-01.txt:
* resolv/netdb.h (getnameinfo): Use `socklen_t' not `size_t'.
(NI_NUMERICHOST, et al.): Tidy up and add comments.
(AI_NUMERICHOST): Define.
(getnodebyname): New prototype.
(AI_V4MAPPED, et al.): New constants.
* sysdeps/unix/bsd/bsd4.4/bits/sockaddr.h (SA_LEN): New macro.<
* sysdeps/generic/bits/sockaddr.h (SA_LEN): Likewise.
* sysdeps/unix/sysv/linux/Makefile (sysdep_routines): Add sa_len
for socket.
* sysdeps/unix/sysv/linux/sa_len.c: New file.
* sysdeps/unix/sysv/linux/Dist: Add sa_len.c.
* sysdeps/unix/sysv/linux/bits/socket.h: Make multiple #inclusion safe.
* sysdeps/generic/bits/sockunion.h: New file, defining sockaddr_union.
* sysdeps/unix/sysv/linux/bits/sockunion.h: Likewise.
* socket/Makefile (headers): Add bits/sockunion.h.
* socket/sys/socket.h: Include <bits/sockunion.h>
* inet/netinet/in.h: Include <bits/sockaddr.h> rather than
<sys/socket.h>, to avoid getting sockaddr_union defined.
* sysdeps/generic/bits/socket.h: Allow inclusion from netinet.in.h.
* sysdeps/unix/sysv/linux/bits/socket.h: Likewise.
* sysdeps/unix/sysv/linux/mips/bits/socket.h: Likewise.
* sysdeps/unix/sysv/linux/if_index.c: Remove use of SIOCGIFCOUNT
(2.2.x kernels won't have it).
1998-04-06 21:21 Ulrich Drepper <drepper@cygnus.com>
* sysdeps/mach/hurd/bits/ioctls.h: Allow inclusion from hurd/ioctl.h.
* sysdeps/mach/hurd/dl-sysdep.c: Use __ptr_t not caddr_t.
* iconv/gconv_conf.c: Define MAXPATHLEN if not available before.
Patches by UCHIYAMA Yasushi <uch@nop.or.jp>.
1998-04-05 Philip Blundell <Philip.Blundell@pobox.com>
* manual/socket.texi (Socket Addresses): Fix a typo.
(Interface Naming): New section.
1998-04-05 23:29 Zack Weinberg <zack@rabi.phys.columbia.edu>
* configure.in: Check for CC using $ac_tool_prefix, to handle
cross-compilation. Use AC_CHECK_TOOL to find MiG.
* config.make.in: Add MIG to be substituted.
* mach/Machrules: Don't define MIG variable.
Patch by Gordon Matzigkeit <gord@profitpress.com>.
1998-04-05 Mark Kettenis <kettenis@phys.uva.nl>
* elf/dl-load.c (decompose_rpath): Use local_strdup instead of
strdupa to copy rpath.
1998-04-05 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* configure.in: Fix gcc version check.
* aclocal.m4 (AC_PROG_CHECK_VER): Rewritten to make less confusing.
1998-04-05 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* configure.in: Fix gcc version check.
* aclocal.m4 (AC_PROG_CHECK_VER): Rewritten to make less
confusing.
1998-04-05 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* configure.in: Fix gcc version check.
* aclocal.m4 (AC_PROG_CHECK_VER): Rewritten to make less
confusing.
1998-03-31 Mark Kettenis <kettenis@phys.uva.nl>
* sysdeps/unix/bsd/unlockpt.c (unlockpt): Call __ptsname_r instead
of ptsname_r.
* stdlib/stdlib.h: Change prototype of ptsname_r to make it more
like ttyname_r.
* sysdeps/unix/sysv/linux/ptsname.c (__ptsname_r): Likewise.
* sysdeps/generic/ptsname.c (__ptsname_r): Likewise.
* sysdeps/unix/grantpt.c (grantpt): Change check of return value
of __ptsname_r accordingly.
* login/openpty.c (openpty): Likewise.
1998-06-04 18:47 H.J. Lu <hjl@gnu.org>
* libio/fileops.c (_IO_file_xsgetn): Adjust pointers.
1998-04-06 13:58 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* Makeconfig (libtypes): Redo H.J. Lu's change of 1998-03-27.
* Makerules: Readd missing rule for $(objpfx)stamp.oS.
1998-04-06 Thorsten Kukuk <kukuk@vt.uni-paderborn.de>
* nis/ypclnt.c: Don't give YPERR_RPC back, use the do_ypcall
return value for better error checking.
Joseph Myers