55 lines
1.1 KiB
C
55 lines
1.1 KiB
C
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// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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*
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* Copyright (c) International Business Machines Corp., 2001
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*/
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/*
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* hugetlb.h - common definitions for the hugepage tests
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*/
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#ifndef __HUGETLB_H
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#define __HUGETLB_H
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#include <stdlib.h>
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#include <sys/ipc.h>
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#include <sys/shm.h>
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#include <errno.h>
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#include <sys/wait.h>
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#include "tst_test.h"
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#include "old_tmpdir.h"
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#include "mem.h"
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#define PALIGN(p, a) ((void *)LTP_ALIGN((unsigned long)(p), (a)))
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#define SHM_RD 0400
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#define SHM_WR 0200
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#define SHM_RW (SHM_RD|SHM_WR)
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#ifndef SHM_HUGETLB
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#define SHM_HUGETLB 04000 /* segment is mapped via hugetlb */
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#endif
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#ifndef barrier
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# ifdef mb
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/* Redefining the mb() */
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# define barrier() mb()
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# else
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# define barrier() __asm__ __volatile__ ("" : : : "memory")
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# endif
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#endif
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/*
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* to get the lower nine permission bits
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* from shmid_ds.ipc_perm.mode
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*/
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#define MODE_MASK 0x01FF
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extern key_t shmkey; /* an IPC key generated by ftok() */
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int getipckey(void);
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int getuserid(char *user);
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void rm_shm(int shm_id);
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int do_readback(void *p, size_t size, char *desc);
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#endif /* hugetlb.h */
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