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Garbage-collect Gnulib sources
Remove Gnulib sources no longer needed or used. admin/merge-gnulib is typically not smart enough to do that. * configure.ac: Do not call gl_EEMALLOC, as it is no longer supplied or needed. * lib/explicit_bzero.c, lib/malloc/scratch_buffer_dupfree.c: * lib/xalloc-oversized.h, m4/eealloc.m4, m4/explicit_bzero.m4: * m4/st_dm_mode.m4, m4/year2038.m4: Remove.
This commit is contained in:
Paul Eggert
parent
cc05493483
commit
88bf047d39
8 changed files with 0 additions and 393 deletions
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@ -7382,7 +7382,6 @@ CFLAGS=$pre_PKG_CONFIG_CFLAGS
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LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
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gl_ASSERT_NO_GNULIB_POSIXCHECK
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gl_ASSERT_NO_GNULIB_TESTS
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gl_EEMALLOC
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gl_INIT
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CFLAGS=$SAVE_CFLAGS
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LIBS=$SAVE_LIBS
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@ -1,74 +0,0 @@
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/* Erasure of sensitive data, generic implementation.
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Copyright (C) 2016-2025 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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/* An assembler implementation of explicit_bzero can be created as an
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assembler alias of an optimized bzero implementation.
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Architecture-specific implementations also need to define
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__explicit_bzero_chk. */
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#if !_LIBC
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# include <config.h>
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#endif
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/* memset_s need this define */
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#if HAVE_MEMSET_S
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# define __STDC_WANT_LIB_EXT1__ 1
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#endif
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#include <string.h>
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#if defined _WIN32 && !defined __CYGWIN__
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# define WIN32_LEAN_AND_MEAN
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# include <windows.h>
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#endif
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#if _LIBC
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/* glibc-internal users use __explicit_bzero_chk, and explicit_bzero
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redirects to that. */
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# undef explicit_bzero
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#endif
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/* Set LEN bytes of S to 0. The compiler will not delete a call to
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this function, even if S is dead after the call. */
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void
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explicit_bzero (void *s, size_t len)
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{
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#if defined _WIN32 && !defined __CYGWIN__
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(void) SecureZeroMemory (s, len);
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#elif HAVE_EXPLICIT_MEMSET
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explicit_memset (s, '\0', len);
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#elif HAVE_MEMSET_S
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(void) memset_s (s, len, '\0', len);
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#elif defined __GNUC__ && !defined __clang__
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memset (s, '\0', len);
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/* Compiler barrier. */
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asm volatile ("" ::: "memory");
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#elif defined __clang__
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memset (s, '\0', len);
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/* Compiler barrier. */
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/* With asm ("" ::: "memory") LLVM analyzes uses of 's' and finds that the
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whole thing is dead and eliminates it. Use 'g' to work around this
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problem. See <https://bugs.llvm.org/show_bug.cgi?id=15495#c11>. */
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__asm__ volatile ("" : : "g"(s) : "memory");
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#else
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/* Invoke memset through a volatile function pointer. This defeats compiler
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optimizations. */
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void * (* const volatile volatile_memset) (void *, int, size_t) = memset;
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(void) volatile_memset (s, '\0', len);
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#endif
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}
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@ -1,41 +0,0 @@
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/* Variable-sized buffer with on-stack default allocation.
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Copyright (C) 2020-2025 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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#ifndef _LIBC
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# include <libc-config.h>
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#endif
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#include <scratch_buffer.h>
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#include <string.h>
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void *
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__libc_scratch_buffer_dupfree (struct scratch_buffer *buffer, size_t size)
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{
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void *data = buffer->data;
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if (data == buffer->__space.__c)
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{
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void *copy = malloc (size);
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return copy != NULL ? memcpy (copy, data, size) : NULL;
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}
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else
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{
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void *copy = realloc (data, size);
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return copy != NULL ? copy : data;
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}
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}
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libc_hidden_def (__libc_scratch_buffer_dupfree)
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@ -1,66 +0,0 @@
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/* xalloc-oversized.h -- memory allocation size checking
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Copyright (C) 1990-2000, 2003-2004, 2006-2025 Free Software
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Foundation, Inc.
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This file is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation; either version 2.1 of the
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License, or (at your option) any later version.
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This file 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
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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#ifndef XALLOC_OVERSIZED_H_
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#define XALLOC_OVERSIZED_H_
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#include <stddef.h>
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#include <stdint.h>
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/* True if N * S does not fit into both ptrdiff_t and size_t.
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N and S should be nonnegative and free of side effects.
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This expands to a constant expression if N and S are both constants.
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By gnulib convention, SIZE_MAX represents overflow in size_t
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calculations, so the conservative size_t-based dividend to use here
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is SIZE_MAX - 1. */
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#define __xalloc_oversized(n, s) \
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((s) != 0 \
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&& (PTRDIFF_MAX < SIZE_MAX ? PTRDIFF_MAX : SIZE_MAX - 1) / (s) < (n))
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/* Return 1 if and only if an array of N objects, each of size S,
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cannot exist reliably because its total size in bytes would exceed
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MIN (PTRDIFF_MAX, SIZE_MAX - 1).
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N and S should be nonnegative and free of side effects.
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Warning: (xalloc_oversized (N, S) ? NULL : malloc (N * S)) can
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misbehave if N and S are both narrower than ptrdiff_t and size_t,
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and can be rewritten as (xalloc_oversized (N, S) ? NULL
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: malloc (N * (size_t) S)).
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This is a macro, not a function, so that it works even if an
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argument exceeds MAX (PTRDIFF_MAX, SIZE_MAX). */
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#if 7 <= __GNUC__ && !defined __clang__ && PTRDIFF_MAX < SIZE_MAX
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# define xalloc_oversized(n, s) \
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__builtin_mul_overflow_p (n, s, (ptrdiff_t) 1)
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#elif 5 <= __GNUC__ && !defined __clang__ && !defined __ICC \
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&& PTRDIFF_MAX < SIZE_MAX
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# define xalloc_oversized(n, s) \
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(__builtin_constant_p (n) && __builtin_constant_p (s) \
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? __xalloc_oversized (n, s) \
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: __extension__ \
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({ ptrdiff_t __xalloc_count; \
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__builtin_mul_overflow (n, s, &__xalloc_count); }))
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/* Other compilers use integer division; this may be slower but is
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more portable. */
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#else
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# define xalloc_oversized(n, s) __xalloc_oversized (n, s)
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#endif
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#endif /* !XALLOC_OVERSIZED_H_ */
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@ -1,32 +0,0 @@
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# eealloc.m4
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# serial 3
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dnl Copyright (C) 2003, 2009-2025 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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AC_DEFUN([gl_EEALLOC],
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[
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AC_REQUIRE([gl_EEMALLOC])
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AC_REQUIRE([gl_EEREALLOC])
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])
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AC_DEFUN([gl_EEMALLOC],
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[
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_AC_FUNC_MALLOC_IF(
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[gl_cv_func_malloc_0_nonnull=1],
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[gl_cv_func_malloc_0_nonnull=0])
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AC_DEFINE_UNQUOTED([MALLOC_0_IS_NONNULL], [$gl_cv_func_malloc_0_nonnull],
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[If malloc(0) is != NULL, define this to 1. Otherwise define this
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to 0.])
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])
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AC_DEFUN([gl_EEREALLOC],
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[
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_AC_FUNC_REALLOC_IF(
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[gl_cv_func_realloc_0_nonnull=1],
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[gl_cv_func_realloc_0_nonnull=0])
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AC_DEFINE_UNQUOTED([REALLOC_0_IS_NONNULL], [$gl_cv_func_realloc_0_nonnull],
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[If realloc(NULL,0) is != NULL, define this to 1. Otherwise define this
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to 0.])
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])
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@ -1,23 +0,0 @@
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dnl Copyright 2017-2025 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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AC_DEFUN([gl_FUNC_EXPLICIT_BZERO],
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[
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AC_REQUIRE([gl_STRING_H_DEFAULTS])
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dnl Persuade glibc <string.h> to declare explicit_bzero.
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AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
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AC_CHECK_FUNCS_ONCE([explicit_bzero])
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if test $ac_cv_func_explicit_bzero = no; then
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HAVE_EXPLICIT_BZERO=0
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fi
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])
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AC_DEFUN([gl_PREREQ_EXPLICIT_BZERO],
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[
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AC_CHECK_FUNCS([explicit_memset])
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AC_CHECK_FUNCS_ONCE([memset_s])
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])
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@ -1,24 +0,0 @@
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# serial 6
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# Copyright (C) 1998-1999, 2001, 2009-2025 Free Software Foundation,
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# Inc.
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# This file is free software; the Free Software Foundation
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# gives unlimited permission to copy and/or distribute it,
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# with or without modifications, as long as this notice is preserved.
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# Define HAVE_ST_DM_MODE if struct stat has an st_dm_mode member.
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AC_DEFUN([AC_STRUCT_ST_DM_MODE],
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[AC_CACHE_CHECK([for st_dm_mode in struct stat], [ac_cv_struct_st_dm_mode],
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[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
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#include <sys/types.h>
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#include <sys/stat.h>]], [[struct stat s; s.st_dm_mode;]])],
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[ac_cv_struct_st_dm_mode=yes],
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[ac_cv_struct_st_dm_mode=no])])
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if test $ac_cv_struct_st_dm_mode = yes; then
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AC_DEFINE([HAVE_ST_DM_MODE], [1],
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[Define if struct stat has an st_dm_mode member.])
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fi
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]
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)
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132
m4/year2038.m4
132
m4/year2038.m4
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@ -1,132 +0,0 @@
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# year2038.m4 serial 8
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dnl Copyright (C) 2017-2025 Free Software Foundation, Inc.
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dnl This file is free software; the Free Software Foundation
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dnl gives unlimited permission to copy and/or distribute it,
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dnl with or without modifications, as long as this notice is preserved.
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dnl Attempt to ensure that 'time_t' can go past the year 2038 and that
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dnl the functions 'time', 'stat', etc. work with post-2038 timestamps.
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m4_ifdef([AC_SYS_YEAR2038], [
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AC_DEFUN([gl_YEAR2038_EARLY])
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AC_DEFUN([gl_YEAR2038], [AC_SYS_YEAR2038])
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AC_DEFUN([gl_YEAR2038_BODY], [_AC_SYS_YEAR2038])
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], [
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AC_DEFUN([gl_YEAR2038_EARLY],
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[
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AC_REQUIRE([AC_CANONICAL_HOST])
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case "$host_os" in
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mingw*)
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AC_DEFINE([__MINGW_USE_VC2005_COMPAT], [1],
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[For 64-bit time_t on 32-bit mingw.])
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;;
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esac
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])
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# gl_YEAR2038_TEST_INCLUDES
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# -------------------------
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AC_DEFUN([gl_YEAR2038_TEST_INCLUDES],
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[[
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#include <time.h>
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/* Check that time_t can represent 2**32 - 1 correctly. */
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#define LARGE_TIME_T \\
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((time_t) (((time_t) 1 << 30) - 1 + 3 * ((time_t) 1 << 30)))
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int verify_time_t_range[(LARGE_TIME_T / 65537 == 65535
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&& LARGE_TIME_T % 65537 == 0)
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? 1 : -1];
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]])
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# gl_YEAR2038_BODY(REQUIRE-YEAR2038-SAFE)
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-----------------------------------------
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AC_DEFUN([gl_YEAR2038_BODY],
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[
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AC_ARG_ENABLE([year2038],
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[ --disable-year2038 omit support for timestamps past the year 2038])
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AS_IF([test "$enable_year2038" != no],
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[
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dnl On many systems, time_t is already a 64-bit type.
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dnl On those systems where time_t is still 32-bit, it requires kernel
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dnl and libc support to make it 64-bit. For glibc 2.34 and later on Linux,
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dnl defining _TIME_BITS=64 and _FILE_OFFSET_BITS=64 is needed on x86 and ARM.
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dnl
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dnl On native Windows, the system include files define types __time32_t
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dnl and __time64_t. By default, time_t is an alias of
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dnl - __time32_t on 32-bit mingw,
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dnl - __time64_t on 64-bit mingw and on MSVC (since MSVC 8).
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dnl But when compiling with -D__MINGW_USE_VC2005_COMPAT, time_t is an
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dnl alias of __time64_t.
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dnl And when compiling with -D_USE_32BIT_TIME_T, time_t is an alias of
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dnl __time32_t.
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AC_CACHE_CHECK([for time_t past the year 2038], [gl_cv_type_time_t_y2038],
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[AC_COMPILE_IFELSE(
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[AC_LANG_SOURCE([gl_YEAR2038_TEST_INCLUDES])],
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[gl_cv_type_time_t_y2038=yes], [gl_cv_type_time_t_y2038=no])
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])
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if test "$gl_cv_type_time_t_y2038" = no; then
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AC_CACHE_CHECK([for 64-bit time_t with _TIME_BITS=64],
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[gl_cv_type_time_t_bits_macro],
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[AC_COMPILE_IFELSE(
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[AC_LANG_SOURCE([[#define _TIME_BITS 64
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#define _FILE_OFFSET_BITS 64
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]gl_YEAR2038_TEST_INCLUDES])],
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[gl_cv_type_time_t_bits_macro=yes],
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[gl_cv_type_time_t_bits_macro=no])
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])
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if test "$gl_cv_type_time_t_bits_macro" = yes; then
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AC_DEFINE([_TIME_BITS], [64],
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[Number of bits in a timestamp, on hosts where this is settable.])
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dnl AC_SYS_LARGFILE also defines this; it's OK if we do too.
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AC_DEFINE([_FILE_OFFSET_BITS], [64],
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[Number of bits in a file offset, on hosts where this is settable.])
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gl_cv_type_time_t_y2038=yes
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fi
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fi
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if test $gl_cv_type_time_t_y2038 = no; then
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AC_COMPILE_IFELSE(
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[AC_LANG_SOURCE(
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[[#ifdef _USE_32BIT_TIME_T
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int ok;
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#else
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error fail
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#endif
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]])],
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[AC_MSG_FAILURE(
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[The 'time_t' type stops working after January 2038.
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Remove _USE_32BIT_TIME_T from the compiler flags.])],
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[# If not cross-compiling and $1 says we should check,
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# and 'touch' works with a large timestamp, then evidently wider time_t
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# is desired and supported, so fail and ask the builder to fix the
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# problem. Otherwise, just warn the builder.
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m4_ifval([$1],
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[if test $cross_compiling = no \
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&& TZ=UTC0 touch -t 210602070628.15 conftest.time 2>/dev/null; then
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case `TZ=UTC0 LC_ALL=C ls -l conftest.time 2>/dev/null` in
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*'Feb 7 2106'* | *'Feb 7 17:10'*)
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AC_MSG_FAILURE(
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[The 'time_t' type stops working after January 2038,
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and your system appears to support a wider 'time_t'.
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Try configuring with 'CC="${CC} -m64"'.
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To build with a 32-bit time_t anyway (not recommended),
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configure with '--disable-year2038'.]);;
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esac
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rm -f conftest.time
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fi])
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if test "$gl_warned_about_y2038" != yes; then
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AC_MSG_WARN(
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[The 'time_t' type stops working after January 2038,
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and this package needs a wider 'time_t' type
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if there is any way to access timestamps after that.
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Configure with 'CC="${CC} -m64"' perhaps?])
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gl_warned_about_y2038=yes
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fi
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])
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||||
fi])
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])
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AC_DEFUN([gl_YEAR2038],
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[
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gl_YEAR2038_BODY([require-year2038-safe])
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])
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||||
|
||||
]) # m4_ifndef AC_SYS_YEAR2038
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