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glibc/include/wchar.h
Joseph Myers 2cfbdb9a27 Fix strftime wcschr namespace (bug 17634). 
Use of strftime, a C90 function, ends up bringing in wcschr, which is
not a C90 function.  Although not a conformance bug (C90 reserves
wcs*), this is still contrary to glibc practice of avoiding relying on
those reservations; this patch arranges for the internal uses to use
__wcschr instead, with wcschr being a weak alias.  This is more
complicated than some such patches because of the various IFUNC
definitions of wcschr (which include code redefining libc_hidden_def
in a way that involves creating __GI_wcschr manually and so also needs
to create __GI___wcschr after the change of internal uses to use
__wcschr).

Tested for x86_64 and 32-bit x86 (testsuite, and that disassembly of
installed shared libraries is unchanged by the patch).

2014-12-10  Joseph Myers  <joseph@codesourcery.com>
	    Adhemerval Zanella  <azanella@linux.vnet.ibm.com>

	[BZ #17634]
	* wcsmbs/wcschr.c [!WCSCHR] (wcschr): Define as __wcschr.
	Undefine after defining function.  Define as weak alias of
	__wcschr.  Use libc_hidden_weak.
	* include/wchar.h (__wcschr): Declare.  Use libc_hidden_proto.
	* sysdeps/i386/i686/multiarch/wcschr-c.c [IS_IN (libc) && SHARED]
	(libc_hidden_def): Also define __GI___wcschr alias.
	* sysdeps/i386/i686/multiarch/wcschr.S (wcschr): Rename to
	__wcschr and define as weak alias of __wcschr.
	* sysdeps/powerpc/power6/wcschr.c [!WCSCHR] (WCSCHR): Define as
	__wcschr.
	[!WCSCHR] (DEFAULT_WCSCHR): Define.
	[DEFAULT_WCSCHR] (__wcschr): Use libc_hidden_def.
	[DEFAULT_WCSCHR] (wcschr): Define as weak alias of __wcschr.  Use
	libc_hidden_weak.  Do not use libc_hidden_def.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wcschr-ppc32.c
	[IS_IN (libc) && SHARED] (libc_hidden_def): Also define
	__GI___wcschr alias.
	* sysdeps/powerpc/powerpc32/power4/multiarch/wcschr.c
	[IS_IN (libc)] (wcschr): Define as macro expanding to
	__redirect_wcschr.
	[IS_IN (libc)] (__wcschr_ppc): Use __redirect_wcschr in typeof.
	[IS_IN (libc)] (__wcschr_power6): Likewise.
	[IS_IN (libc)] (__wcschr_power7): Likewise.
	[IS_IN (libc)] (__libc_wcschr): New.  Define with libc_ifunc
	instead of wcschr.
	[IS_IN (libc)] (wcschr): Undefine and define as weak alias of
	__libc_wcschr.
	[!IS_IN (libc)] (libc_hidden_def): Do not undefine and redefine.
	* sysdeps/powerpc/powerpc64/multiarch/wcschr.c (wcschr): Rename to
	__wcschr and define as weak alias of __wcschr.  Use
	libc_hidden_builtin_def.
	* sysdeps/x86_64/wcschr.S (wcschr): Rename to __wcschr and define
	as weak alias of __wcschr.  Use libc_hidden_weak.
	* time/alt_digit.c (_nl_get_walt_digit): Use __wcschr instead of
	wcschr.
	* time/era.c (_nl_init_era_entries): Likewise.
	* conform/Makefile (test-xfail-ISO/time.h/linknamespace): Remove
	variable.
	(test-xfail-XPG3/time.h/linknamespace): Likewise.
	(test-xfail-XPG4/time.h/linknamespace): Likewise.
2014-12-10 16:59:02 +00:00

213 lines
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#ifndef _WCHAR_H
#include <wcsmbs/wchar.h>
# ifndef _ISOMAC
# ifdef _WCHAR_H
extern __typeof (wcscasecmp_l) __wcscasecmp_l;
extern __typeof (wcsncasecmp_l) __wcsncasecmp_l;
extern __typeof (wcscoll_l) __wcscoll_l;
extern __typeof (wcsxfrm_l) __wcsxfrm_l;
extern __typeof (wcstol_l) __wcstol_l;
extern __typeof (wcstoul_l) __wcstoul_l;
extern __typeof (wcstoll_l) __wcstoll_l;
extern __typeof (wcstoull_l) __wcstoull_l;
extern __typeof (wcstod_l) __wcstod_l;
extern __typeof (wcstof_l) __wcstof_l;
extern __typeof (wcstold_l) __wcstold_l;
extern __typeof (wcsftime_l) __wcsftime_l;
libc_hidden_proto (__wcstol_l)
libc_hidden_proto (__wcstoul_l)
libc_hidden_proto (__wcstoll_l)
libc_hidden_proto (__wcstoull_l)
libc_hidden_proto (__wcstod_l)
libc_hidden_proto (__wcstof_l)
libc_hidden_proto (__wcstold_l)
libc_hidden_proto (__wcsftime_l)
extern double __wcstod_internal (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr, int __group)
__THROW;
extern float __wcstof_internal (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr, int __group)
__THROW;
extern long double __wcstold_internal (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr,
int __group) __THROW;
extern long int __wcstol_internal (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr,
int __base, int __group) __THROW;
extern unsigned long int __wcstoul_internal (const wchar_t *__restrict __npt,
wchar_t **__restrict __endptr,
int __base, int __group) __THROW;
__extension__
extern long long int __wcstoll_internal (const wchar_t *__restrict __nptr,
wchar_t **__restrict __endptr,
int __base, int __group) __THROW;
__extension__
extern unsigned long long int __wcstoull_internal (const wchar_t *
__restrict __nptr,
wchar_t **
__restrict __endptr,
int __base,
int __group) __THROW;
libc_hidden_proto (__wcstof_internal)
libc_hidden_proto (__wcstod_internal)
libc_hidden_proto (__wcstold_internal)
libc_hidden_proto (__wcstol_internal)
libc_hidden_proto (__wcstoll_internal)
libc_hidden_proto (__wcstoul_internal)
libc_hidden_proto (__wcstoull_internal)
libc_hidden_proto (wcstof)
libc_hidden_proto (wcstod)
libc_hidden_proto (wcstold)
libc_hidden_proto (wcstol)
libc_hidden_proto (wcstoll)
libc_hidden_proto (wcstoul)
libc_hidden_proto (wcstoull)
libc_hidden_proto (__wcscasecmp_l)
libc_hidden_proto (__wcsncasecmp_l)
libc_hidden_proto (__wcscoll_l)
libc_hidden_proto (__wcsxfrm_l)
libc_hidden_proto (fputws_unlocked)
libc_hidden_proto (putwc_unlocked)
libc_hidden_proto (putwc)
libc_hidden_proto (vswscanf)
libc_hidden_proto (mbrtowc)
libc_hidden_proto (wcrtomb)
libc_hidden_proto (wcscmp)
libc_hidden_proto (wcsftime)
libc_hidden_proto (wcsspn)
libc_hidden_proto (wcschr)
/* The C++ overloading of wcschr means we have to repeat the type to
declare __wcschr instead of using typeof, to avoid errors in C++
tests. */
extern wchar_t *__wcschr (const wchar_t *__wcs, wchar_t __wc)
__THROW __attribute_pure__;
libc_hidden_proto (__wcschr)
libc_hidden_proto (wcscoll)
libc_hidden_proto (wcspbrk)
extern typeof (wmemset) __wmemset;
libc_hidden_proto (wmemchr)
libc_hidden_proto (wmemset)
libc_hidden_proto (__wmemset)
/* Now define the internal interfaces. */
extern int __wcscasecmp (const wchar_t *__s1, const wchar_t *__s2)
__attribute_pure__;
extern int __wcsncasecmp (const wchar_t *__s1, const wchar_t *__s2,
size_t __n)
__attribute_pure__;
extern size_t __wcslen (const wchar_t *__s) __attribute_pure__;
extern size_t __wcsnlen (const wchar_t *__s, size_t __maxlen)
__attribute_pure__;
extern wchar_t *__wcscat (wchar_t *dest, const wchar_t *src);
extern wint_t __btowc (int __c);
extern int __mbsinit (const __mbstate_t *__ps);
extern size_t __mbrtowc (wchar_t *__restrict __pwc,
const char *__restrict __s, size_t __n,
__mbstate_t *__restrict __p);
libc_hidden_proto (__mbrtowc)
libc_hidden_proto (__mbrlen)
extern size_t __wcrtomb (char *__restrict __s, wchar_t __wc,
__mbstate_t *__restrict __ps);
extern size_t __mbsrtowcs (wchar_t *__restrict __dst,
const char **__restrict __src,
size_t __len, __mbstate_t *__restrict __ps);
extern size_t __wcsrtombs (char *__restrict __dst,
const wchar_t **__restrict __src,
size_t __len, __mbstate_t *__restrict __ps);
extern size_t __mbsnrtowcs (wchar_t *__restrict __dst,
const char **__restrict __src, size_t __nmc,
size_t __len, __mbstate_t *__restrict __ps);
extern size_t __wcsnrtombs (char *__restrict __dst,
const wchar_t **__restrict __src,
size_t __nwc, size_t __len,
__mbstate_t *__restrict __ps);
extern wchar_t *__wcsncpy (wchar_t *__restrict __dest,
const wchar_t *__restrict __src, size_t __n);
extern wchar_t *__wcpcpy (wchar_t *__dest, const wchar_t *__src);
extern wchar_t *__wcpncpy (wchar_t *__dest, const wchar_t *__src,
size_t __n);
extern wchar_t *__wmemcpy (wchar_t *__s1, const wchar_t *s2,
size_t __n);
extern wchar_t *__wmempcpy (wchar_t *__restrict __s1,
const wchar_t *__restrict __s2,
size_t __n);
extern wchar_t *__wmemmove (wchar_t *__s1, const wchar_t *__s2,
size_t __n);
extern wchar_t *__wcschrnul (const wchar_t *__s, wchar_t __wc)
__attribute_pure__;
extern int __vfwscanf (__FILE *__restrict __s,
const wchar_t *__restrict __format,
__gnuc_va_list __arg)
/* __attribute__ ((__format__ (__wscanf__, 2, 0)) */;
extern int __vswprintf (wchar_t *__restrict __s, size_t __n,
const wchar_t *__restrict __format,
__gnuc_va_list __arg)
/* __attribute__ ((__format__ (__wprintf__, 3, 0))) */;
extern int __fwprintf (__FILE *__restrict __s,
const wchar_t *__restrict __format, ...)
/* __attribute__ ((__format__ (__wprintf__, 2, 3))) */;
extern int __vfwprintf (__FILE *__restrict __s,
const wchar_t *__restrict __format,
__gnuc_va_list __arg)
/* __attribute__ ((__format__ (__wprintf__, 2, 0))) */;
#ifndef __cplusplus
extern int __vfwprintf_chk (FILE *__restrict __s, int __flag,
const wchar_t *__restrict __format,
__gnuc_va_list __arg)
/* __attribute__ ((__format__ (__wprintf__, 3, 0))) */;
extern int __vswprintf_chk (wchar_t *__restrict __s, size_t __n,
int __flag, size_t __s_len,
const wchar_t *__restrict __format,
__gnuc_va_list __arg)
/* __attribute__ ((__format__ (__wprintf__, 5, 0))) */;
libc_hidden_proto (__vfwprintf_chk)
libc_hidden_proto (__vswprintf_chk)
#endif
extern int __isoc99_fwscanf (__FILE *__restrict __stream,
const wchar_t *__restrict __format, ...);
extern int __isoc99_wscanf (const wchar_t *__restrict __format, ...);
extern int __isoc99_swscanf (const wchar_t *__restrict __s,
const wchar_t *__restrict __format, ...)
__THROW;
extern int __isoc99_vfwscanf (__FILE *__restrict __s,
const wchar_t *__restrict __format,
__gnuc_va_list __arg);
extern int __isoc99_vwscanf (const wchar_t *__restrict __format,
__gnuc_va_list __arg);
extern int __isoc99_vswscanf (const wchar_t *__restrict __s,
const wchar_t *__restrict __format,
__gnuc_va_list __arg) __THROW;
libc_hidden_proto (__isoc99_vswscanf)
libc_hidden_proto (__isoc99_vfwscanf)
/* Internal functions. */
extern size_t __mbsrtowcs_l (wchar_t *dst, const char **src, size_t len,
mbstate_t *ps, __locale_t l) attribute_hidden;
/* Special version. We know that all uses of mbsinit inside the libc
have a non-NULL parameter. And certainly we can access the
internals of the data structure directly. */
# define mbsinit(state) ((state)->__count == 0)
# define __mbsinit(state) ((state)->__count == 0)
# endif
# endif
#endif
/* Undefine all __need_* constants in case we are included to get those
constants but the whole file was already read. */
#undef __need_mbstate_t
#undef __need_wint_t
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