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As discussed in
https://sourceware.org/ml/libc-alpha/2015-10/msg00403.html
the setting of _STRING_ARCH_unaligned currently controls the external
GLIBC ABI as well as selecting the use of unaligned accesses withing
GLIBC.
Since _STRING_ARCH_unaligned was recently changed for AArch64, this
would potentially break the ABI in GLIBC 2.23, so split the uses and add
_STRING_INLINE_unaligned to select the string ABI. This setting must be
fixed for each target, while _STRING_ARCH_unaligned may be changed from
release to release. _STRING_ARCH_unaligned is used unconditionally in
glibc. But <bits/string.h>, which defines _STRING_ARCH_unaligned, isn't
included with -Os. Since _STRING_ARCH_unaligned is internal to glibc and
may change between glibc releases, it should be made private to glibc.
_STRING_ARCH_unaligned should defined in the new string_private.h heade
file which is included unconditionally from internal <string.h> for glibc
build.
[BZ #19462]
* bits/string.h (_STRING_ARCH_unaligned): Renamed to ...
(_STRING_INLINE_unaligned): This.
* include/string.h: Include <string_private.h>.
* string/bits/string2.h: Replace _STRING_ARCH_unaligned with
_STRING_INLINE_unaligned.
* sysdeps/aarch64/bits/string.h (_STRING_ARCH_unaligned): Removed.
(_STRING_INLINE_unaligned): New.
* sysdeps/aarch64/string_private.h: New file.
* sysdeps/generic/string_private.h: Likewise.
* sysdeps/m68k/m680x0/m68020/string_private.h: Likewise.
* sysdeps/s390/string_private.h: Likewise.
* sysdeps/x86/string_private.h: Likewise.
* sysdeps/m68k/m680x0/m68020/bits/string.h
(_STRING_ARCH_unaligned): Renamed to ...
(_STRING_INLINE_unaligned): This.
* sysdeps/s390/bits/string.h (_STRING_ARCH_unaligned): Renamed
to ...
(_STRING_INLINE_unaligned): This.
* sysdeps/sparc/bits/string.h (_STRING_ARCH_unaligned): Renamed
to ...
(_STRING_INLINE_unaligned): This.
* sysdeps/x86/bits/string.h (_STRING_ARCH_unaligned): Renamed
to ...
(_STRING_INLINE_unaligned): This.
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this for all targets except sparc which has an optimized mempcpy
implementation.
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* sysdeps/sparc/bits/string.h (_STRING_ARCH_unaligned): Define to
0.
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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.
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* catgets/gencat.c (main): Don't use exit() to avoid warnings with
broken compilers.
* include/features.h (__STDC_ISO_10646__): Correct value to be
200009L. Patch by Markus Kuhn <Markus.Kuhn@cl.cam.ac.uk>.
2000-11-08 H.J. Lu <hjl@gnu.org>
* pwd/Versions (GLIBC_2.1.2): Add getpwnam_r.
2000-11-08 Jakub Jelinek <jakub@redhat.com>
* string/bits/string2.h: Check if _USE_STRING_ARCH_ macros are
defined, not _HAVE_STRING_ARCH_.
* sysdeps/i386/bits/string.h (_USE_STRING_ARCH_memset,
_USE_STRING_ARCH_strchr): Define.
* sysdeps/i386/i486/bits/string.h (_USE_STRING_ARCH_memset,
_USE_STRING_ARCH_strchr): Define.
* sysdeps/sparc/bits/string.h: New file.
2000-11-08 Bruno Haible <haible@clisp.cons.org>
* locale/C-translit.h.in: Tweak <U2014> result.
* locale/C-translit.h: Regenerated.
2000-11-08 Ulrich Drepper <drepper@redhat.com>
* posix/unistd.h: Add attribute((const)) to sysconf prototype.
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