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+/* Copyright (C) 1995,1996,1997,2000,2002,2004 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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+ The GNU C Library is free software; you can redistribute it and/or
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+ modify it under the terms of the GNU Lesser General Public
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+ License as published by the Free Software Foundation; either
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+ version 2.1 of the License, or (at your option) any later version.
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+
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+ The GNU C 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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+ Lesser General Public License for more details.
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+
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+ You should have received a copy of the GNU Lesser General Public
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+ License along with the GNU C Library; if not, write to the Free
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+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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+ 02111-1307 USA. */
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+
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+#ifndef _SYS_SHM_H
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+# error "Never include <bits/shm.h> directly; use <sys/shm.h> instead."
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+#endif
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+
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+#include <bits/types.h>
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+
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+/* Permission flag for shmget. */
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+#define SHM_R 0400 /* or S_IRUGO from <linux/stat.h> */
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+#define SHM_W 0200 /* or S_IWUGO from <linux/stat.h> */
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+
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+/* Flags for `shmat'. */
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+#define SHM_RDONLY 010000 /* attach read-only else read-write */
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+#define SHM_RND 020000 /* round attach address to SHMLBA */
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+#define SHM_REMAP 040000 /* take-over region on attach */
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+
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+/* Commands for `shmctl'. */
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+#define SHM_LOCK 11 /* lock segment (root only) */
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+#define SHM_UNLOCK 12 /* unlock segment (root only) */
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+
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+__BEGIN_DECLS
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+
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+/* Segment low boundary address multiple. */
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+/*
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+ * XXX: This is misleading, SH-4 and SH-3 7705 in 32kb mode have dcache
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+ * aliases to contend with in the 4k page case. This is not an issue for
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+ * the other parts. Leave this bumped up for sanity until this can be
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+ * accurately defined by the L1D shape through the auxiliary vector.
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+ */
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+#define SHMLBA (__getpagesize() << 2)
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+extern int __getpagesize (void) __THROW __attribute__ ((__const__));
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+
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+
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+/* Type to count number of attaches. */
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+typedef unsigned long int shmatt_t;
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+
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+/* Data structure describing a set of semaphores. */
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+struct shmid_ds
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+ {
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+ struct ipc_perm shm_perm; /* operation permission struct */
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+ size_t shm_segsz; /* size of segment in bytes */
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+ __time_t shm_atime; /* time of last shmat() */
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+ unsigned long int __unused1;
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+ __time_t shm_dtime; /* time of last shmdt() */
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+ unsigned long int __unused2;
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+ __time_t shm_ctime; /* time of last change by shmctl() */
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+ unsigned long int __unused3;
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+ __pid_t shm_cpid; /* pid of creator */
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+ __pid_t shm_lpid; /* pid of last shmop */
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+ shmatt_t shm_nattch; /* number of current attaches */
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+ unsigned long int __unused4;
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+ unsigned long int __unused5;
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+ };
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+
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+#ifdef __USE_MISC
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+
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+/* ipcs ctl commands */
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+# define SHM_STAT 13
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+# define SHM_INFO 14
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+
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+/* shm_mode upper byte flags */
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+# define SHM_DEST 01000 /* segment will be destroyed on last detach */
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+# define SHM_LOCKED 02000 /* segment will not be swapped */
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+# define SHM_HUGETLB 04000 /* segment is mapped via hugetlb */
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+# define SHM_NORESERVE 010000 /* don't check for reservations */
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+
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+struct shminfo
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+ {
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+ unsigned long int shmmax;
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+ unsigned long int shmmin;
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+ unsigned long int shmmni;
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+ unsigned long int shmseg;
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+ unsigned long int shmall;
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+ unsigned long int __unused1;
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+ unsigned long int __unused2;
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+ unsigned long int __unused3;
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+ unsigned long int __unused4;
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+ };
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+
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+struct shm_info
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+ {
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+ int used_ids;
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+ unsigned long int shm_tot; /* total allocated shm */
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+ unsigned long int shm_rss; /* total resident shm */
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+ unsigned long int shm_swp; /* total swapped shm */
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+ unsigned long int swap_attempts;
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+ unsigned long int swap_successes;
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+ };
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+
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+#endif /* __USE_MISC */
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+
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+__END_DECLS
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Paul Mundt