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Due to the built-in tables, __NR_getpagesize is always defined. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
45 lines
1.3 KiB
C
45 lines
1.3 KiB
C
/* Copyright (C) 2000-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Andreas Schwab <schwab@suse.de>.
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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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#include <unistd.h>
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#include <sys/param.h>
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#include <errno.h>
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#include <ldsodefs.h>
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#include <sysdep.h>
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#include <sys/syscall.h>
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/* Return the system page size. */
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int
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__getpagesize (void)
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{
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int result;
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if (GLRO(dl_pagesize) != 0)
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return GLRO(dl_pagesize);
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result = INTERNAL_SYSCALL_CALL (getpagesize);
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/* The only possible error is ENOSYS. */
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if (!INTERNAL_SYSCALL_ERROR_P (result))
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return result;
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return 4096;
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}
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libc_hidden_def (__getpagesize)
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weak_alias (__getpagesize, getpagesize)
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