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47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
/* Copyright (C) 1994-2016 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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<http://www.gnu.org/licenses/>. */
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#include <sys/types.h>
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#include <sys/mman.h>
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#include <errno.h>
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#include <mach.h>
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/* Deallocate any mapping for the region starting at ADDR and extending LEN
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bytes. Returns 0 if successful, -1 for errors (and sets errno). */
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int
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__munmap (__ptr_t addr, size_t len)
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{
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kern_return_t err;
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if (addr == 0)
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{
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errno = EINVAL;
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return -1;
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}
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if (err = __vm_deallocate (__mach_task_self (),
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(vm_address_t) addr, (vm_size_t) len))
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{
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errno = err;
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return -1;
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}
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return 0;
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}
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weak_alias (__munmap, munmap)
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