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https://gitlab.freedesktop.org/pipewire/pipewire
synced 2024-10-02 22:25:17 +00:00
mem: fix for memfd_create check
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parent
d7c26c4b59
commit
77838fd734
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@ -117,7 +117,7 @@ if cc.has_function('mkstemp', prefix : '#include <stdlib.h>')
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cdata.set('HAVE_MKSTEMP', 1)
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endif
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if cc.has_function('memfd_create', prefix : '#include <sys/mman.h>', args : [ '-D__USE_GNU' ])
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if cc.has_function('memfd_create', prefix : '#include <sys/mman.h>', args : [ '-D_GNU_SOURCE' ])
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cdata.set('HAVE_MEMFD_CREATE', 1)
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endif
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@ -21,6 +21,8 @@
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#define _GNU_SOURCE
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#endif
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#include "config.h"
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#include <string.h>
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#include <stddef.h>
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#include <stdio.h>
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@ -34,6 +36,7 @@
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#include <pipewire/log.h>
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#include <pipewire/mem.h>
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#ifndef HAVE_MEMFD_CREATE
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/*
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* No glibc wrappers exist for memfd_create(2), so provide our own.
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*
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@ -46,6 +49,7 @@ static inline int memfd_create(const char *name, unsigned int flags)
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{
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return syscall(SYS_memfd_create, name, flags);
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}
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#endif
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/* memfd_create(2) flags */
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@ -1,62 +0,0 @@
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/* PipeWire
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* Copyright (C) 2016 Wim Taymans <wim.taymans@gmail.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include <sys/syscall.h>
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#include <fcntl.h>
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#ifndef HAVE_MEMFD_CREATE
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/*
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* No glibc wrappers exist for memfd_create(2), so provide our own.
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*
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* Also define memfd fcntl sealing macros. While they are already
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* defined in the kernel header file <linux/fcntl.h>, that file as
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* a whole conflicts with the original glibc header <fnctl.h>.
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*/
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static inline int
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memfd_create(const char *name, unsigned int flags) {
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return syscall(SYS_memfd_create, name, flags);
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}
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#endif
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/* memfd_create(2) flags */
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#ifndef MFD_CLOEXEC
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#define MFD_CLOEXEC 0x0001U
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#endif
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#ifndef MFD_ALLOW_SEALING
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#define MFD_ALLOW_SEALING 0x0002U
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#endif
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/* fcntl() seals-related flags */
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#ifndef F_LINUX_SPECIFIC_BASE
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#define F_LINUX_SPECIFIC_BASE 1024
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#endif
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#ifndef F_ADD_SEALS
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#define F_ADD_SEALS (F_LINUX_SPECIFIC_BASE + 9)
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#define F_GET_SEALS (F_LINUX_SPECIFIC_BASE + 10)
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#define F_SEAL_SEAL 0x0001 /* prevent further seals from being set */
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#define F_SEAL_SHRINK 0x0002 /* prevent file from shrinking */
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#define F_SEAL_GROW 0x0004 /* prevent file from growing */
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#define F_SEAL_WRITE 0x0008 /* prevent writes */
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#endif
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