/* Define current locale data for LC_CTYPE category.
- Copyright (C) 1995-1999, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1995-2018 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 Library General Public License as
- published by the Free Software Foundation; either version 2 of the
- License, or (at your option) any later version.
+ 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
- Library General Public License for more details.
+ Lesser General Public License for more details.
- You should have received a copy of the GNU Library General Public
- License along with the GNU C Library; see the file COPYING.LIB. If not,
- write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ 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/>. */
#include "localeinfo.h"
#include <ctype.h>
_NL_CURRENT_DEFINE (LC_CTYPE);
/* We are called after loading LC_CTYPE data to load it into
- the variables used by the ctype.h macros.
+ the variables used by the ctype.h macros. */
+
- There are three arrays of short ints which need to be indexable
- from -128 to 255 inclusive. Stored in the locale data file are
- a copy of each for each byte order. */
void
_nl_postload_ctype (void)
{
-#define paste(a,b) paste1(a,b)
-#define paste1(a,b) a##b
-
#define current(type,x,offset) \
- ((const type *) _NL_CURRENT (LC_CTYPE, paste(_NL_CTYPE_,x)) + offset)
+ ((const type *) _NL_CURRENT (LC_CTYPE, _NL_CTYPE_##x) + offset)
+
+ const union locale_data_value *const ctypes
+ = _nl_global_locale.__locales[LC_CTYPE]->values;
+
+/* These thread-local variables are defined in ctype-info.c.
+ The declarations here must match those in localeinfo.h.
+
+ These point into arrays of 384, so they can be indexed by any `unsigned
+ char' value [0,255]; by EOF (-1); or by any `signed char' value
+ [-128,-1). ISO C requires that the ctype functions work for `unsigned
+ char' values and for EOF; we also support negative `signed char' values
+ for broken old programs. The case conversion arrays are of `int's
+ rather than `unsigned char's because tolower (EOF) must be EOF, which
+ doesn't fit into an `unsigned char'. But today more important is that
+ the arrays are also used for multi-byte character sets.
+
+ First we update the special members of _nl_global_locale as newlocale
+ would. This is necessary for uselocale (LC_GLOBAL_LOCALE) to find these
+ values properly. */
+
+ _nl_global_locale.__ctype_b = (const unsigned short int *)
+ ctypes[_NL_ITEM_INDEX (_NL_CTYPE_CLASS)].string + 128;
+ _nl_global_locale.__ctype_tolower = (const int *)
+ ctypes[_NL_ITEM_INDEX (_NL_CTYPE_TOLOWER)].string + 128;
+ _nl_global_locale.__ctype_toupper = (const int *)
+ ctypes[_NL_ITEM_INDEX (_NL_CTYPE_TOUPPER)].string + 128;
+
+ /* Next we must set the thread-local caches if and only if this thread is
+ in fact using the global locale. */
+ if (_NL_CURRENT_LOCALE == &_nl_global_locale)
+ {
+ __libc_tsd_set (const uint16_t *, CTYPE_B,
+ (void *) _nl_global_locale.__ctype_b);
+ __libc_tsd_set (const int32_t *, CTYPE_TOUPPER,
+ (void *) _nl_global_locale.__ctype_toupper);
+ __libc_tsd_set (const int32_t *, CTYPE_TOLOWER,
+ (void *) _nl_global_locale.__ctype_tolower);
+ }
+
+#include <shlib-compat.h>
+#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3)
+ /* We must use the exported names to access these so we are sure to
+ be accessing the main executable's copy if it has COPY relocs. */
+
+ extern const unsigned short int *__ctype_b; /* Characteristics. */
+ extern const __int32_t *__ctype_tolower; /* Case conversions. */
+ extern const __int32_t *__ctype_toupper; /* Case conversions. */
extern const uint32_t *__ctype32_b;
- extern const uint32_t *__ctype_names;
- extern const unsigned char *__ctype_width;
extern const uint32_t *__ctype32_toupper;
extern const uint32_t *__ctype32_tolower;
- extern const char *__ctype32_wctype[12];
- extern const char *__ctype32_wctrans[2];
- extern const char *__ctype32_width;
+
+ /* We need the .symver declarations these macros generate so that
+ our references are explicitly bound to the versioned symbol names
+ rather than the unadorned names that are not exported. When the
+ linker sees these bound to local symbols (as the unexported names are)
+ then it doesn't generate a proper relocation to the global symbols.
+ We need those relocations so that a versioned definition with a COPY
+ reloc in an executable will override the libc.so definition. */
+
+compat_symbol (libc, __ctype_b, __ctype_b, GLIBC_2_0);
+compat_symbol (libc, __ctype_tolower, __ctype_tolower, GLIBC_2_0);
+compat_symbol (libc, __ctype_toupper, __ctype_toupper, GLIBC_2_0);
+compat_symbol (libc, __ctype32_b, __ctype32_b, GLIBC_2_0);
+compat_symbol (libc, __ctype32_tolower, __ctype32_tolower, GLIBC_2_2);
+compat_symbol (libc, __ctype32_toupper, __ctype32_toupper, GLIBC_2_2);
__ctype_b = current (uint16_t, CLASS, 128);
- __ctype_toupper = current (uint32_t, TOUPPER, 128);
- __ctype_tolower = current (uint32_t, TOLOWER, 128);
+ __ctype_toupper = current (int32_t, TOUPPER, 128);
+ __ctype_tolower = current (int32_t, TOLOWER, 128);
__ctype32_b = current (uint32_t, CLASS32, 0);
__ctype32_toupper = current (uint32_t, TOUPPER32, 0);
__ctype32_tolower = current (uint32_t, TOLOWER32, 0);
- if (_NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_HASH_SIZE) != 0)
- {
- /* Old locale format. */
- __ctype_names = current (uint32_t, NAMES, 0);
- __ctype_width = current (unsigned char, WIDTH, 0);
- }
- else
- {
- /* New locale format. */
- size_t offset, cnt;
-
- offset = _NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_CLASS_OFFSET);
- for (cnt = 0; cnt < 12; cnt++)
- __ctype32_wctype[cnt] =
- _nl_current_LC_CTYPE->values[offset + cnt].string;
-
- offset = _NL_CURRENT_WORD (LC_CTYPE, _NL_CTYPE_MAP_OFFSET);
- for (cnt = 0; cnt < 2; cnt++)
- __ctype32_wctrans[cnt] =
- _nl_current_LC_CTYPE->values[offset + cnt].string;
-
- __ctype32_width = current (char, WIDTH, 0);
- }
+#endif
}
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