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2745db8dd3
This ensures that the ctype data pointers in TLS are valid in secondary namespaces even without initialization via __ctype_init. Reviewed-by: Frédéric Bérat <fberat@redhat.com>
83 lines
3.6 KiB
C
83 lines
3.6 KiB
C
/* Copyright (C) 1991-2025 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#define CTYPE_EXTERN_INLINE /* Define real functions for accessors. */
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#include <ctype.h>
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#include <locale/localeinfo.h>
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/* Fallback initialization using relocations. See the _nl_C_locobj
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initializers in locale/xlocale.c. Usually, this is overwritten by
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__ctype_init before user code runs, but this does not happen for
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threads in secondary namespaces. With the initializers, secondary
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namespaces at least get locale data from the C locale. */
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__thread const uint16_t * __libc_tsd_CTYPE_B
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= (const uint16_t *) _nl_C_LC_CTYPE_class + 128;
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__thread const int32_t * __libc_tsd_CTYPE_TOLOWER
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= (const int32_t *) _nl_C_LC_CTYPE_tolower + 128;
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__thread const int32_t * __libc_tsd_CTYPE_TOUPPER
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= (const int32_t *) _nl_C_LC_CTYPE_toupper + 128;
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void
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__ctype_init (void)
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{
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__libc_tsd_CTYPE_B
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= ((const uint16_t *) _NL_CURRENT (LC_CTYPE, _NL_CTYPE_CLASS)) + 128;
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__libc_tsd_CTYPE_TOUPPER
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= ((const int32_t *) _NL_CURRENT (LC_CTYPE, _NL_CTYPE_TOUPPER)) + 128;
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__libc_tsd_CTYPE_TOLOWER =
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((const int32_t *) _NL_CURRENT (LC_CTYPE, _NL_CTYPE_TOLOWER)) + 128;
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}
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libc_hidden_def (__ctype_init)
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#include <shlib-compat.h>
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#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_3)
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/* Defined in locale/C-ctype.c. */
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extern const char _nl_C_LC_CTYPE_class32[] attribute_hidden;
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extern const char _nl_C_LC_CTYPE_class_upper[] attribute_hidden;
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extern const char _nl_C_LC_CTYPE_class_lower[] attribute_hidden;
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extern const char _nl_C_LC_CTYPE_class_alpha[] attribute_hidden;
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extern const char _nl_C_LC_CTYPE_class_digit[] attribute_hidden;
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extern const char _nl_C_LC_CTYPE_class_xdigit[] attribute_hidden;
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extern const char _nl_C_LC_CTYPE_class_space[] attribute_hidden;
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extern const char _nl_C_LC_CTYPE_class_print[] attribute_hidden;
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extern const char _nl_C_LC_CTYPE_class_graph[] attribute_hidden;
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extern const char _nl_C_LC_CTYPE_class_blank[] attribute_hidden;
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extern const char _nl_C_LC_CTYPE_class_cntrl[] attribute_hidden;
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extern const char _nl_C_LC_CTYPE_class_punct[] attribute_hidden;
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extern const char _nl_C_LC_CTYPE_class_alnum[] attribute_hidden;
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#define b(t,x,o) (((const t *) _nl_C_LC_CTYPE_##x) + o)
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const unsigned short int *__ctype_b = b (unsigned short int, class, 128);
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const __uint32_t *__ctype32_b = b (__uint32_t, class32, 0);
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const __int32_t *__ctype_tolower = b (__int32_t, tolower, 128);
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const __int32_t *__ctype_toupper = b (__int32_t, toupper, 128);
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const __uint32_t *__ctype32_tolower = b (__uint32_t, tolower, 128);
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const __uint32_t *__ctype32_toupper = b (__uint32_t, toupper, 128);
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compat_symbol (libc, __ctype_b, __ctype_b, GLIBC_2_0);
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compat_symbol (libc, __ctype_tolower, __ctype_tolower, GLIBC_2_0);
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compat_symbol (libc, __ctype_toupper, __ctype_toupper, GLIBC_2_0);
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compat_symbol (libc, __ctype32_b, __ctype32_b, GLIBC_2_0);
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compat_symbol (libc, __ctype32_tolower, __ctype32_tolower, GLIBC_2_2);
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compat_symbol (libc, __ctype32_toupper, __ctype32_toupper, GLIBC_2_2);
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#endif
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