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/*
+----------------------------------------------------------------------+
| This source file is subject to version 2.00 of the Zend license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.zend.com/license/2_00.txt. |
| If you did not receive a copy of the Zend license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@zend.com so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Authors: Max Kellermann <max.kellermann@ionos.com> |
+----------------------------------------------------------------------+
*/
#ifndef ZEND_MMAP_H
#define ZEND_MMAP_H
#include "zend_portability.h"
#ifdef __linux__
# include <sys/prctl.h>
/* fallback definitions if our libc is older than the kernel */
# ifndef PR_SET_VMA
# define PR_SET_VMA 0x53564d41
# endif
# ifndef PR_SET_VMA_ANON_NAME
# define PR_SET_VMA_ANON_NAME 0
# endif
#endif // __linux__
/**
* Set a name for the specified memory area.
*
* This feature requires Linux 5.17.
*/
static zend_always_inline void zend_mmap_set_name(const void *start, size_t len, const char *name)
{
#ifdef __linux__
prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, (unsigned long)start, len, (unsigned long)name);
#endif
}
#endif /* ZEND_MMAP_H */
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