Mercurial > pub > dyncall > dyncall
diff 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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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/dyncallback/dyncall_alloc_wx_mmap.c Thu Mar 19 22:24:28 2015 +0100 @@ -0,0 +1,43 @@ +/* + + Package: dyncall + Library: dyncallback + File: dyncallback/dyncall_alloc_wx_mmap.c + Description: Allocate write/executable memory - Implementation for posix + License: + + Copyright (c) 2007-2015 Daniel Adler <dadler@uni-goettingen.de>, + Tassilo Philipp <tphilipp@potion-studios.com> + + Permission to use, copy, modify, and distribute this software for any + purpose with or without fee is hereby granted, provided that the above + copyright notice and this permission notice appear in all copies. + + THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + +*/ + + +#include "dyncall_alloc_wx.h" + +#include <sys/types.h> +#include <sys/mman.h> + +int dcAllocWX(size_t size, void** pp) +{ + void* p = mmap(0, size, PROT_EXEC|PROT_READ|PROT_WRITE, MAP_PRIVATE|MAP_ANON, -1, 0); + if (p == ( (void*)-1 ) ) return -1; + *pp = p; + return 0; +} + +void dcFreeWX(void* p, size_t size) +{ + munmap(p, size); +}