/src/php-src/Zend/zend_mmap.h
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1 | | /* |
2 | | +----------------------------------------------------------------------+ |
3 | | | Zend Engine | |
4 | | +----------------------------------------------------------------------+ |
5 | | | Copyright © Zend Technologies Ltd., a subsidiary company of | |
6 | | | Perforce Software, Inc., and Contributors. | |
7 | | +----------------------------------------------------------------------+ |
8 | | | This source file is subject to the Modified BSD License that is | |
9 | | | bundled with this package in the file LICENSE, and is available | |
10 | | | through the World Wide Web at <https://www.php.net/license/>. | |
11 | | | | |
12 | | | SPDX-License-Identifier: BSD-3-Clause | |
13 | | +----------------------------------------------------------------------+ |
14 | | | Authors: Max Kellermann <max.kellermann@ionos.com> | |
15 | | +----------------------------------------------------------------------+ |
16 | | */ |
17 | | |
18 | | #ifndef ZEND_MMAP_H |
19 | | #define ZEND_MMAP_H |
20 | | |
21 | | #include "zend_portability.h" |
22 | | |
23 | | #ifdef HAVE_PRCTL |
24 | | # include <sys/prctl.h> |
25 | | |
26 | | /* fallback definitions if our libc is older than the kernel */ |
27 | | # ifndef PR_SET_VMA |
28 | 453 | # define PR_SET_VMA 0x53564d41 |
29 | | # endif |
30 | | # ifndef PR_SET_VMA_ANON_NAME |
31 | 453 | # define PR_SET_VMA_ANON_NAME 0 |
32 | | # endif |
33 | | #endif // HAVE_PRCTL |
34 | | |
35 | | /** |
36 | | * Set a name for the specified memory area. |
37 | | * |
38 | | * This feature requires Linux 5.17. |
39 | | */ |
40 | | static zend_always_inline void zend_mmap_set_name(const void *start, size_t len, const char *name) |
41 | 453 | { |
42 | 453 | #ifdef HAVE_PRCTL |
43 | 453 | prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, (unsigned long)start, len, (unsigned long)name); |
44 | 453 | #endif |
45 | 453 | } Unexecuted instantiation: ZendAccelerator.c:zend_mmap_set_name Unexecuted instantiation: zend_alloc.c:zend_mmap_set_name zend_fibers.c:zend_mmap_set_name Line | Count | Source | 41 | 453 | { | 42 | 453 | #ifdef HAVE_PRCTL | 43 | 453 | prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, (unsigned long)start, len, (unsigned long)name); | 44 | 453 | #endif | 45 | 453 | } |
|
46 | | |
47 | | #endif /* ZEND_MMAP_H */ |