47 lines
1.7 KiB
C
47 lines
1.7 KiB
C
|
/*
|
||
|
|
* This file is part of the Micro Python project, http://micropython.org/
|
||
|
|
*
|
||
|
|
* The MIT License (MIT)
|
||
|
|
*
|
||
|
|
* Copyright (c) 2014 Fabian Vogt
|
||
|
|
*
|
||
|
|
* Permission is hereby granted, free of charge, to any person obtaining a copy
|
||
|
|
* of this software and associated documentation files (the "Software"), to deal
|
||
|
|
* in the Software without restriction, including without limitation the rights
|
||
|
|
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
||
|
|
* copies of the Software, and to permit persons to whom the Software is
|
||
|
|
* furnished to do so, subject to the following conditions:
|
||
|
|
*
|
||
|
|
* The above copyright notice and this permission notice shall be included in
|
||
|
|
* all copies or substantial portions of the Software.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
||
|
|
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
||
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
||
|
|
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
||
|
|
* THE SOFTWARE.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <stdint.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <sys/mman.h>
|
||
|
|
|
||
|
|
#include "mpconfigport.h"
|
||
|
|
|
||
|
|
void mp_unix_alloc_exec(mp_uint_t min_size, void** ptr, mp_uint_t *size)
|
||
|
|
{
|
||
|
|
// size needs to be a multiple of the page size
|
||
|
|
*size = (min_size + 0xfff) & (~0xfff);
|
||
|
|
*ptr = mmap(NULL, *size, PROT_READ | PROT_WRITE | PROT_EXEC, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
|
||
|
|
if (*ptr == MAP_FAILED) {
|
||
|
|
*ptr = NULL;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void mp_unix_free_exec(void *ptr, mp_uint_t size)
|
||
|
|
{
|
||
|
|
munmap(ptr, size);
|
||
|
|
}
|