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Mark internal wchar functions with attribute_hidden [BZ #18822] 

Mark internal wchar functions with attribute_hidden to allow direct
access within libc.so and libc.a without using GOT nor PLT.

	[BZ #18822]
	* include/wchar.h (__wcsnlen): Add attribute_hidden.
	(__wcscat): Likewise.
	(__btowc): Likewise.
	(__wcrtomb): Likewise.
	(__mbsrtowcs): Likewise.
	(__wcsrtombs): Likewise.
	(__mbsnrtowcs): Likewise.
	(__wcsnrtombs): Likewise.
	(__wcsncpy): Likewise.
	(__wcpncpy): Likewise.
	(__wmemcpy): Likewise.
	(__wmempcpy): Likewise.
	(__wmemmove): Likewise.
	(__wcschrnul): Likewise.
	(__vfwscanf): Likewise.
	(__vswprintf): Likewise.
	(__fwprintf): Likewise.
	(__vfwprintf): Likewise.
hjl/pr22298/master
H.J. Lu 9 years ago
parent
783cd767af
commit
44af8a32c3
2 changed files with 46 additions and 14 deletions
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  1. 22
      ChangeLog
  2. 38
      include/wchar.h

22
ChangeLog
View File

@ -1,3 +1,25 @@
2017-10-01 H.J. Lu <hongjiu.lu@intel.com>
[BZ #18822]
* include/wchar.h (__wcsnlen): Add attribute_hidden.
(__wcscat): Likewise.
(__btowc): Likewise.
(__wcrtomb): Likewise.
(__mbsrtowcs): Likewise.
(__wcsrtombs): Likewise.
(__mbsnrtowcs): Likewise.
(__wcsnrtombs): Likewise.
(__wcsncpy): Likewise.
(__wcpncpy): Likewise.
(__wmemcpy): Likewise.
(__wmempcpy): Likewise.
(__wmemmove): Likewise.
(__wcschrnul): Likewise.
(__vfwscanf): Likewise.
(__vswprintf): Likewise.
(__fwprintf): Likewise.
(__vfwprintf): Likewise.
2017-10-01 H.J. Lu <hongjiu.lu@intel.com>
[BZ #18822]

38
include/wchar.h
View File

@ -152,9 +152,10 @@ extern int __wcsncasecmp (const wchar_t *__s1, const wchar_t *__s2,
__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);
attribute_hidden __attribute_pure__;
extern wchar_t *__wcscat (wchar_t *dest, const wchar_t *src)
attribute_hidden;
extern wint_t __btowc (int __c) attribute_hidden;
extern int __mbsinit (const __mbstate_t *__ps);
extern size_t __mbrtowc (wchar_t *__restrict __pwc,
const char *__restrict __s, size_t __n,
@ -162,34 +163,39 @@ extern size_t __mbrtowc (wchar_t *__restrict __pwc,
libc_hidden_proto (__mbrtowc)
libc_hidden_proto (__mbrlen)
extern size_t __wcrtomb (char *__restrict __s, wchar_t __wc,
__mbstate_t *__restrict __ps);
__mbstate_t *__restrict __ps) attribute_hidden;
extern size_t __mbsrtowcs (wchar_t *__restrict __dst,
const char **__restrict __src,
size_t __len, __mbstate_t *__restrict __ps);
size_t __len, __mbstate_t *__restrict __ps)
attribute_hidden;
extern size_t __wcsrtombs (char *__restrict __dst,
const wchar_t **__restrict __src,
size_t __len, __mbstate_t *__restrict __ps);
size_t __len, __mbstate_t *__restrict __ps)
attribute_hidden;
extern size_t __mbsnrtowcs (wchar_t *__restrict __dst,
const char **__restrict __src, size_t __nmc,
size_t __len, __mbstate_t *__restrict __ps);
size_t __len, __mbstate_t *__restrict __ps)
attribute_hidden;
extern size_t __wcsnrtombs (char *__restrict __dst,
const wchar_t **__restrict __src,
size_t __nwc, size_t __len,
__mbstate_t *__restrict __ps);
__mbstate_t *__restrict __ps)
attribute_hidden;
extern wchar_t *__wcsncpy (wchar_t *__restrict __dest,
const wchar_t *__restrict __src, size_t __n);
const wchar_t *__restrict __src, size_t __n)
attribute_hidden;
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);
size_t __n) attribute_hidden;
extern wchar_t *__wmemcpy (wchar_t *__s1, const wchar_t *s2,
size_t __n);
size_t __n) attribute_hidden;
extern wchar_t *__wmempcpy (wchar_t *__restrict __s1,
const wchar_t *__restrict __s2,
size_t __n);
size_t __n) attribute_hidden;
extern wchar_t *__wmemmove (wchar_t *__s1, const wchar_t *__s2,
size_t __n);
size_t __n) attribute_hidden;
extern wchar_t *__wcschrnul (const wchar_t *__s, wchar_t __wc)
__attribute_pure__;
attribute_hidden __attribute_pure__;
extern wchar_t *__wmemset_chk (wchar_t *__s, wchar_t __c, size_t __n,
size_t __ns) __THROW;
@ -197,17 +203,21 @@ extern wchar_t *__wmemset_chk (wchar_t *__s, wchar_t __c, size_t __n,
extern int __vfwscanf (__FILE *__restrict __s,
const wchar_t *__restrict __format,
__gnuc_va_list __arg)
attribute_hidden
/* __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_hidden
/* __attribute__ ((__format__ (__wprintf__, 3, 0))) */;
extern int __fwprintf (__FILE *__restrict __s,
const wchar_t *__restrict __format, ...)
attribute_hidden
/* __attribute__ ((__format__ (__wprintf__, 2, 3))) */;
extern int __vfwprintf (__FILE *__restrict __s,
const wchar_t *__restrict __format,
__gnuc_va_list __arg)
attribute_hidden
/* __attribute__ ((__format__ (__wprintf__, 2, 0))) */;
extern int __vfwprintf_chk (FILE *__restrict __s, int __flag,
const wchar_t *__restrict __format,

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