1 files changed, 92 insertions, 0 deletions
diff --git a/include/uapi/linux/sem.h b/include/uapi/linux/sem.h
new file mode 100644
index 000000000..dd73b908b
--- /dev/null
+++ b/include/uapi/linux/sem.h
@@ -0,0 +1,92 @@
+#ifndef _UAPI_LINUX_SEM_H
+#define _UAPI_LINUX_SEM_H
+
+#include <linux/ipc.h>
+
+/* semop flags */
+#define SEM_UNDO        0x1000  /* undo the operation on exit */
+
+/* semctl Command Definitions. */
+#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 */
+
+/* ipcs ctl cmds */
+#define SEM_STAT 18
+#define SEM_INFO 19
+
+/* Obsolete, used only for backwards compatibility and libc5 compiles */
+struct semid_ds {
+	struct ipc_perm	sem_perm;		/* permissions .. see ipc.h */
+	__kernel_time_t	sem_otime;		/* last semop time */
+	__kernel_time_t	sem_ctime;		/* last change time */
+	struct sem	*sem_base;		/* ptr to first semaphore in array */
+	struct sem_queue *sem_pending;		/* pending operations to be processed */
+	struct sem_queue **sem_pending_last;	/* last pending operation */
+	struct sem_undo	*undo;			/* undo requests on this array */
+	unsigned short	sem_nsems;		/* no. of semaphores in array */
+};
+
+/* Include the definition of semid64_ds */
+#include <asm/sembuf.h>
+
+/* semop system calls takes an array of these. */
+struct sembuf {
+	unsigned short  sem_num;	/* semaphore index in array */
+	short		sem_op;		/* semaphore operation */
+	short		sem_flg;	/* operation flags */
+};
+
+/* arg for semctl system calls. */
+union semun {
+	int val;			/* value for SETVAL */
+	struct semid_ds __user *buf;	/* buffer for IPC_STAT & IPC_SET */
+	unsigned short __user *array;	/* array for GETALL & SETALL */
+	struct seminfo __user *__buf;	/* buffer for IPC_INFO */
+	void __user *__pad;
+};
+
+struct  seminfo {
+	int semmap;
+	int semmni;
+	int semmns;
+	int semmnu;
+	int semmsl;
+	int semopm;
+	int semume;
+	int semusz;
+	int semvmx;
+	int semaem;
+};
+
+/*
+ * SEMMNI, SEMMSL and SEMMNS are default values which can be
+ * modified by sysctl.
+ * The values has been chosen to be larger than necessary for any
+ * known configuration.
+ *
+ * SEMOPM should not be increased beyond 1000, otherwise there is the
+ * risk that semop()/semtimedop() fails due to kernel memory fragmentation when
+ * allocating the sop array.
+ */
+
+
+#define SEMMNI  32000           /* <= IPCMNI  max # of semaphore identifiers */
+#define SEMMSL  32000           /* <= INT_MAX max num of semaphores per id */
+#define SEMMNS  (SEMMNI*SEMMSL) /* <= INT_MAX max # of semaphores in system */
+#define SEMOPM  500	        /* <= 1 000 max num of ops per semop call */
+#define SEMVMX  32767           /* <= 32767 semaphore maximum value */
+#define SEMAEM  SEMVMX          /* adjust on exit max value */
+
+/* unused */
+#define SEMUME  SEMOPM          /* max num of undo entries per process */
+#define SEMMNU  SEMMNS          /* num of undo structures system wide */
+#define SEMMAP  SEMMNS          /* # of entries in semaphore map */
+#define SEMUSZ  20		/* sizeof struct sem_undo */
+
+
+#endif /* _UAPI_LINUX_SEM_H */