e2fba140a8
After r349240 kern_mprotect returns EINVAL for unsupported bits in the prot argument. Linux rtld uses PROT_GROWSDOWN and PROT_GROWS_UP when marking the stack executable. Mask these bits like kern_mprotect used to do. For other unsupported bits EINVAL is returned like Linux does. Reviewed by: trasz, brooks MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D20864
52 lines
2.1 KiB
C
52 lines
2.1 KiB
C
/*-
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* Copyright (c) 2004 Tim J. Robbins
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* Copyright (c) 2002 Doug Rabson
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* Copyright (c) 2000 Marcel Moolenaar
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* Copyright (c) 1994-1995 Søren Schmidt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _LINUX_MMAP_H_
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#define _LINUX_MMAP_H_
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/* mmap options */
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#define LINUX_MAP_SHARED 0x0001
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#define LINUX_MAP_PRIVATE 0x0002
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#define LINUX_MAP_FIXED 0x0010
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#define LINUX_MAP_ANON 0x0020
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#define LINUX_MAP_GROWSDOWN 0x0100
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#define LINUX_PROT_GROWSDOWN 0x01000000
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#define LINUX_PROT_GROWSUP 0x02000000
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int linux_mmap_common(struct thread *, uintptr_t, size_t, int, int,
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int, off_t);
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int linux_mprotect_common(struct thread *, uintptr_t, size_t, int);
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#endif /* _LINUX_MMAP_H_ */
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