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Fix isblank / isascii / toascii namespace (bug 17635).

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Use of isblank brings in isascii and toascii, but isblank is a C99
function and the other two aren't; similarly, isascii and toascii are
UNIX98 functions and bring in isblank, which isn't.  (Not a
conformance issue because of the is* and to* reservation, but still
contrary to glibc practice.)  This patch fixes this by splitting
isblank out of ctype-extn.c to a separate ctype-c99.c.  isblank_l is
also moved to a separate file, ctype-c99_l.c (non-XSI POSIX.1-2008 has
isblank_l, but isascii / toascii are marked OB XSI).  (In principle
all these functions could go in separate files - that's optimal for
static linking - but they are also all very small, and splitting them
all out is not needed to fix the present bug.)

Tested for x86_64 (testsuite, and that installed stripped shared
libraries are unchanged by the patch - the ordering in which new and
existing sources are listed in ctype/Makefile is arranged so functions
go in the same order so that this comparison works).

	[BZ #17635]
	* ctype/ctype-c99.c: New file.  isblank implementation moved from
	...
	* ctype/ctype-extn.c: ... here.
	(__isblank_l): Move to ...
	* ctype/ctype-c99_l.c: ... here.  New file.
	* ctype/Makefile (routines): Add ctype-c99 and ctype-c99_l.
	* conform/Makefile (test-xfail-ISO99/ctype.h/linknamespace):
	Remove variable.
	(test-xfail-ISO11/ctype.h/linknamespace): Likewise.
	(test-xfail-XPG3/ctype.h/linknamespace): Likewise.
	(test-xfail-XPG4/ctype.h/linknamespace): Likewise.
	(test-xfail-UNIX98/ctype.h/linknamespace): Likewise.
	(test-xfail-POSIX2008/ctype.h/linknamespace): Likewise.
This commit is contained in:
Joseph Myers 2015-01-05 15:06:57 +00:00
parent a287953a45
commit b8986484e4
7 changed files with 73 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
ChangeLog
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@ -1,5 +1,20 @@
2015-01-05 Joseph Myers <joseph@codesourcery.com>
[BZ #17635]
* ctype/ctype-c99.c: New file. isblank implementation moved from
...
* ctype/ctype-extn.c: ... here.
(__isblank_l): Move to ...
* ctype/ctype-c99_l.c: ... here. New file.
* ctype/Makefile (routines): Add ctype-c99 and ctype-c99_l.
* conform/Makefile (test-xfail-ISO99/ctype.h/linknamespace):
Remove variable.
(test-xfail-ISO11/ctype.h/linknamespace): Likewise.
(test-xfail-XPG3/ctype.h/linknamespace): Likewise.
(test-xfail-XPG4/ctype.h/linknamespace): Likewise.
(test-xfail-UNIX98/ctype.h/linknamespace): Likewise.
(test-xfail-POSIX2008/ctype.h/linknamespace): Likewise.
[BZ #17777]
* sysdeps/unix/sysv/linux/wordsize-64/posix_fadvise.c
(posix_fadvise64): Define as weak alias not strong alias.

6
NEWS
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@ -14,9 +14,9 @@ Version 2.21
17344, 17363, 17370, 17371, 17411, 17460, 17475, 17485, 17501, 17506,
17508, 17522, 17555, 17570, 17571, 17572, 17573, 17574, 17581, 17582,
17583, 17584, 17585, 17589, 17594, 17601, 17608, 17616, 17625, 17630,
17633, 17634, 17647, 17653, 17657, 17664, 17665, 17668, 17682, 17717,
17719, 17722, 17723, 17724, 17725, 17732, 17733, 17744, 17745, 17746,
17747, 17775, 17777, 17780, 17781, 17782
17633, 17634, 17635, 17647, 17653, 17657, 17664, 17665, 17668, 17682,
17717, 17719, 17722, 17723, 17724, 17725, 17732, 17733, 17744, 17745,
17746, 17747, 17775, 17777, 17780, 17781, 17782
* i386 memcpy functions optimized with SSE2 unaligned load/store.

6
conform/Makefile
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@ -345,9 +345,6 @@ test-xfail-XOPEN2K/ndbm.h/linknamespace = yes
test-xfail-XOPEN2K8/ndbm.h/linknamespace = yes
# Unsorted expected failures.
test-xfail-ISO99/ctype.h/linknamespace = yes
test-xfail-ISO11/ctype.h/linknamespace = yes
test-xfail-XPG3/ctype.h/linknamespace = yes
test-xfail-XPG3/fnmatch.h/linknamespace = yes
test-xfail-XPG3/glob.h/linknamespace = yes
test-xfail-XPG3/regex.h/linknamespace = yes
@ -355,7 +352,6 @@ test-xfail-XPG3/search.h/linknamespace = yes
test-xfail-XPG3/stdio.h/linknamespace = yes
test-xfail-XPG3/unistd.h/linknamespace = yes
test-xfail-XPG3/wordexp.h/linknamespace = yes
test-xfail-XPG4/ctype.h/linknamespace = yes
test-xfail-XPG4/fmtmsg.h/linknamespace = yes
test-xfail-XPG4/fnmatch.h/linknamespace = yes
test-xfail-XPG4/glob.h/linknamespace = yes
@ -375,7 +371,6 @@ test-xfail-POSIX/regex.h/linknamespace = yes
test-xfail-POSIX/semaphore.h/linknamespace = yes
test-xfail-POSIX/unistd.h/linknamespace = yes
test-xfail-POSIX/wordexp.h/linknamespace = yes
test-xfail-UNIX98/ctype.h/linknamespace = yes
test-xfail-UNIX98/fmtmsg.h/linknamespace = yes
test-xfail-UNIX98/fnmatch.h/linknamespace = yes
test-xfail-UNIX98/glob.h/linknamespace = yes
@ -403,7 +398,6 @@ test-xfail-XOPEN2K/syslog.h/linknamespace = yes
test-xfail-XOPEN2K/ucontext.h/linknamespace = yes
test-xfail-XOPEN2K/unistd.h/linknamespace = yes
test-xfail-XOPEN2K/wordexp.h/linknamespace = yes
test-xfail-POSIX2008/ctype.h/linknamespace = yes
test-xfail-POSIX2008/dirent.h/linknamespace = yes
test-xfail-POSIX2008/grp.h/linknamespace = yes
test-xfail-POSIX2008/netdb.h/linknamespace = yes

2
ctype/Makefile
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@ -24,7 +24,7 @@ include ../Makeconfig
headers := ctype.h
routines := ctype ctype-extn ctype_l isctype
routines := ctype ctype-c99 ctype-extn ctype-c99_l ctype_l isctype
aux := ctype-info
tests := test_ctype

26
ctype/ctype-c99.c Normal file
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@ -0,0 +1,26 @@
/* External function version of isblank.
Copyright (C) 1991-2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#define __NO_CTYPE
#include <ctype.h>
int
isblank (int c)
{
return __isctype (c, _ISblank);
}

27
ctype/ctype-c99_l.c Normal file
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@ -0,0 +1,27 @@
/* External function version of isblank_l.
Copyright (C) 1991-2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#define __NO_CTYPE
#include <ctype.h>
int
__isblank_l (int c, __locale_t l)
{
return __isctype_l (c, _ISblank, l);
}
weak_alias (__isblank_l, isblank_l)

17
ctype/ctype-extn.c
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@ -23,14 +23,7 @@
#define __ctype_toupper \
((int32_t *) _NL_CURRENT (LC_CTYPE, _NL_CTYPE_TOUPPER) + 128)
/* Real function versions of the non-ANSI ctype functions. isblank is
now in ISO C99 but we leave it here. */
int
isblank (int c)
{
return __isctype (c, _ISblank);
}
/* Real function versions of the non-ANSI ctype functions. */
int
_tolower (int c)
@ -56,11 +49,3 @@ isascii (int c)
return __isascii (c);
}
weak_alias (isascii, __isascii_l)
int
__isblank_l (int c, __locale_t l)
{
return __isctype_l (c, _ISblank, l);
}
weak_alias (__isblank_l, isblank_l)