Mercurial > pub > dyncall > dyncall
comparison dyncallback/dyncall_alloc_wx_mmap.c @ 0:3e629dc19168
initial from svn dyncall-1745
author | Daniel Adler |
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date | Thu, 19 Mar 2015 22:24:28 +0100 |
parents | |
children | a41bc98e101c |
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-1:000000000000 | 0:3e629dc19168 |
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1 /* | |
2 | |
3 Package: dyncall | |
4 Library: dyncallback | |
5 File: dyncallback/dyncall_alloc_wx_mmap.c | |
6 Description: Allocate write/executable memory - Implementation for posix | |
7 License: | |
8 | |
9 Copyright (c) 2007-2015 Daniel Adler <dadler@uni-goettingen.de>, | |
10 Tassilo Philipp <tphilipp@potion-studios.com> | |
11 | |
12 Permission to use, copy, modify, and distribute this software for any | |
13 purpose with or without fee is hereby granted, provided that the above | |
14 copyright notice and this permission notice appear in all copies. | |
15 | |
16 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES | |
17 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF | |
18 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR | |
19 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES | |
20 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN | |
21 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF | |
22 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. | |
23 | |
24 */ | |
25 | |
26 | |
27 #include "dyncall_alloc_wx.h" | |
28 | |
29 #include <sys/types.h> | |
30 #include <sys/mman.h> | |
31 | |
32 int dcAllocWX(size_t size, void** pp) | |
33 { | |
34 void* p = mmap(0, size, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, -1, 0); | |
35 if (p == ( (void*)-1 ) ) return -1; | |
36 *pp = p; | |
37 return 0; | |
38 } | |
39 | |
40 void dcFreeWX(void* p, size_t size) | |
41 { | |
42 munmap(p, size); | |
43 } |