- VM_KERN_NOPAGEZERO feature is gone

- sys_getbiosbuffer feature is gone (from kernel; available from vm)
- bump version number because munmap() calls that newly compiled binaries
  will do trigger an ugly (but harmless) error message in older VM's
- some new VM calls and flags, the new IPC calls
- some new CR0 register bits
- added files for shared memory

include/sys/ipc.h

@@ -0,0 +1,42 @@
+#ifndef _SYS_IPC_H
+#define _SYS_IPC_H
+
+/* For gid_t, uid_t */
+#include <sys/types.h>
+
+/* Mode bits for `msgget', `semget', and `shmget'. */
+/* Create key if key does not exist. */
+#define IPC_CREAT	01000
+/* Fail if key exists. */
+#define IPC_EXCL	02000
+/* Return error on wait. */
+#define IPC_NOWAIT	04000
+
+/* Control commands for `msgctl', `semctl', and `shmctl'. */
+/* Remove identifier. */
+#define IPC_RMID	0
+/* Set `ipc_perm' options. */
+#define IPC_SET		1
+/* Get `ipc_perm' options. */
+#define IPC_STAT	2
+#define IPC_INFO	3	/* See ipcs. */
+
+/* Special key values. */
+/* Private key. */
+#define IPC_PRIVATE	((key_t) 0)
+
+/* Data structure used to pass permission information to IPC operations. */
+struct ipc_perm
+{
+	key_t key;	/* Key. */
+	uid_t uid;		/* Owner's user ID. */
+	gid_t gid;		/* Owner's group ID. */
+	uid_t cuid;		/* Creator's user ID. */
+	gid_t cgid;		/* Creator's group ID. */
+	unsigned short int mode;	/* Reader/write permission. */
+	unsigned short int __seq;	/* Sequence number. */
+};
+
+_PROTOTYPE( key_t ftok, (const char *__path, int __id));
+
+#endif /* _SYS_IPC_H */

include/sys/mman.h

@@ -20,11 +20,17 @@
 #define MAP_CONTIG	0x0010		/* contiguous in physical memory */
 #define MAP_LOWER16M	0x0020		/* physically below 16MB */
 #define MAP_ALIGN64K	0x0040		/* physically aligned at 64kB */
+#define MAP_LOWER1M	0x0080		/* physically below 16MB */
 
 /* mmap() error return */
 #define MAP_FAILED      ((void *)-1)
 
 _PROTOTYPE( void *mmap, (void *, size_t, int, int, int, off_t));
 _PROTOTYPE( int munmap, (void *, size_t));
+_PROTOTYPE( int munmap_text, (void *, size_t));
+_PROTOTYPE( void *vm_remap, (int d, int s, void *da, void *sa, size_t si));
+_PROTOTYPE( int vm_unmap, (int endpt, void *addr));
+_PROTOTYPE( unsigned long vm_getphys, (int endpt, void *addr));
+_PROTOTYPE( u8_t vm_getrefcount, (int endpt, void *addr));
 
 #endif /* _MMAN_H */

include/sys/sem.h

@@ -0,0 +1,81 @@
+#ifndef _SYS_SEM_H
+#define _SYS_SEM_H
+
+#include <sys/types.h>
+#include <sys/ipc.h>
+
+#define SEMMNI	128
+#define SEMMSL	250
+#define SEMMNS	(SEMMSL*SEMMNI)
+
+#define SEMOPM	32
+#define SEMVMX	32767
+
+/* Flags for `semop'.  */
+#define SEM_UNDO        0x1000          /* undo the operation on exit */
+
+/* Commands for `semctl'.  */
+#define GETPID          11              /* get sempid */
+#define GETVAL          12              /* get semval */
+#define GETALL          13              /* get all semval's */
+#define GETNCNT         14              /* get semncnt */
+#define GETZCNT         15              /* get semzcnt */
+#define SETVAL          16              /* set semval */
+#define SETALL          17              /* set all semval's */
+
+
+/* Data structure describing a set of semaphores.  */
+struct semid_ds
+{
+	struct ipc_perm sem_perm;             /* operation permission struct */
+	time_t sem_otime;                   /* last semop() time */
+	unsigned long int __unused1;
+	time_t sem_ctime;                   /* last time changed by semctl() */
+	unsigned long int __unused2;
+	unsigned long int sem_nsems;          /* number of semaphores in set */
+	unsigned long int __unused3;
+	unsigned long int __unused4;
+};
+
+/* Structure used for argument to `semop' to describe operations.  */
+struct sembuf
+{
+	unsigned short int sem_num;   /* semaphore number */
+	short int sem_op;             /* semaphore operation */
+	short int sem_flg;            /* operation flag */
+};
+
+
+/* Semaphore control operation.  */
+_PROTOTYPE( int semctl, (int __semid, int __semnum, int __cmd, ...));
+
+/* Get semaphore.  */
+_PROTOTYPE( int semget, (key_t __key, int __nsems, int __semflg));
+
+/* Operate on semaphore.  */
+_PROTOTYPE( int semop, (int __semid, struct sembuf *__sops, size_t __nsops));
+
+
+#ifdef __USE_MISC
+
+/* ipcs ctl cmds */
+# define SEM_STAT 18
+# define SEM_INFO 19
+
+struct  seminfo
+{
+	int semmap;
+	int semmni;
+	int semmns;
+	int semmnu;
+	int semmsl;
+	int semopm;
+	int semume;
+	int semusz;
+	int semvmx;
+	int semaem;
+};
+
+#endif /* __USE_MISC */
+
+#endif /* _SYS_SEM_H */

include/sys/shm.h

@@ -0,0 +1,77 @@
+#ifndef _SYS_SHM_H
+#define _SYS_SHM_H
+
+#include <sys/types.h>
+#include <sys/ipc.h>
+
+#include <unistd.h>
+
+typedef unsigned long int shmatt_t;
+
+#define SHMLBA	getpagesize()
+#define SHMMNI	4096
+#define SHMSEG	32		/* max shared segs per process */
+
+struct shmid_ds
+{
+	struct ipc_perm shm_perm;	/* Ownership and permissions */
+	size_t	shm_segsz;			/* Size of segment (bytes) */
+	time_t	shm_atime;			/* Last attach time */
+	time_t	shm_dtime;			/* Last detach time */
+	time_t	shm_ctime;			/* Last change time */
+	pid_t	shm_cpid;			/* PID of creator */
+	pid_t	shm_lpid;			/* PID of last shmat()/shmdt() */
+	shmatt_t	shm_nattch;		/* No. of current attaches */
+};
+
+/* Permission flag for shmget. */
+#define SHM_R	0400
+#define SHM_W	0200
+
+#define SHM_RDONLY 010000		/* attach read-only else read-write */
+#define SHM_RND    020000		/* round attach address to SHMLBA */
+
+/* shm_mode upper byte flags */
+#define SHM_DEST 01000			/* segment will be destroyed on last detach */
+#define SHM_LOCKED 02000		/* segment will not be swapped */
+
+/* ipcs ctl commands */
+#define SHM_STAT	13
+#define SHM_INFO	14
+
+struct  shminfo
+{
+	unsigned long int shmmax;
+	unsigned long int shmmin;
+	unsigned long int shmmni;
+	unsigned long int shmseg;
+	unsigned long int shmall;
+};
+
+struct shm_info
+{
+	int used_ids;
+	unsigned long int shm_tot;  /* total allocated shm */
+	unsigned long int shm_rss;  /* total resident shm */
+	unsigned long int shm_swp;  /* total swapped shm */
+	unsigned long int swap_attempts;
+	unsigned long int swap_successes;
+};
+
+/* The following System V style IPC functions implement a shared memory
+ * facility.  The definition is found in XPG4.2.
+ */
+
+/* Shared memory control operation. */
+_PROTOTYPE( int shmctl, (int __shmid, int __cmd, struct shmid_ds *__buf));
+
+/* Get shared memory segment. */
+_PROTOTYPE( int shmget, (key_t __key, size_t __size, int __shmflg));
+
+/* Attach shared memory segment. */
+_PROTOTYPE( void *shmat, (int __shmid, const void *__shmaddr, int __shmflg));
+
+/* Deattach shared memory segment. */
+_PROTOTYPE( int shmdt, (const void *__shmaddr));
+
+#endif /* _SYS_SHM_H */

include/sys/signal.h

@@ -0,0 +1,2 @@
+#include <signal.h>
+

include/sys/timeb.h

@@ -0,0 +1,18 @@
+#ifndef _SYS__TIMEB_H
+#define _SYS__TIMEB_H
+
+#include <time.h>
+
+struct timeb
+{
+	time_t time;                /* Seconds since epoch, as from `time'.  */
+	unsigned short int millitm; /* Additional milliseconds.  */
+	short int timezone;         /* Minutes west of GMT.  */
+	short int dstflag;          /* Nonzero if Daylight Savings Time used.  */
+};
+
+/* Fill in TIMEBUF with information about the current time.  */
+
+_PROTOTYPE( int ftime, (struct timeb *__timebuf));
+
+#endif /* _SYS__TIMEB_H */

include/sys/types.h

@@ -43,6 +43,11 @@ typedef long clock_t;		   /* unit for system accounting */
 typedef unsigned long sigset_t;
 #endif
 
+#ifndef _KEY_T
+#define _KEY_T
+typedef long key_t;
+#endif
+
 /* Open Group Base Specifications Issue 6 (not complete) */
 typedef long useconds_t;	/* Time in microseconds */
 

include/sys/vm_i386.h

@@ -16,6 +16,7 @@ sys/vm_i386.h
 #define I386_VM_ACC	0x020	/* Accessed */
 #define I386_VM_ADDR_MASK 0xFFFFF000 /* physical address */
 #define I386_VM_ADDR_MASK_4MB 0xFFC00000 /* physical address */
+#define I386_VM_OFFSET_MASK_4MB 0x003FFFFF /* physical address */
 
 /* Page directory specific flags. */
 #define I386_VM_BIGPAGE	0x080	/* 4MB page */
@@ -37,6 +38,12 @@ sys/vm_i386.h
 #define I386_VM_PFA_SHIFT	22	/* Page frame address shift */
 
 /* CR0 bits */
+#define I386_CR0_PE		0x00000001	/* Protected mode  */
+#define I386_CR0_MP		0x00000002	/* Monitor Coprocessor  */
+#define I386_CR0_EM		0x00000004	/* Emulate  */
+#define I386_CR0_TS		0x00000008	/* Task Switched  */
+#define I386_CR0_ET		0x00000010	/* Extension Type  */
+#define I386_CR0_WP		0x00010000	/* Enable paging */
 #define I386_CR0_PG		0x80000000	/* Enable paging */
 
 /* some CR4 bits */