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source: trunk/kernel/syscalls/shared_syscalls.h @ 429

Last change on this file since 429 was 421, checked in by alain, 7 years ago
Introduce sys_fg() , sys_display() , sys_wait() syscalls.
File size: 16.6 KB

Rev	Line
[410]	1	/*
	2	* syscalls.h - Shared Kernel/User informations for syscalls.
	3	*
	4	* Author Alain Greiner (2016,2017)
	5	*
	6	* Copyright (c) UPMC Sorbonne Universites
	7	*
	8	* This file is part of ALMOS-MKH.
	9	*
	10	* ALMOS-MKH is free software; you can redistribute it and/or modify it
	11	* under the terms of the GNU General Public License as published by
	12	* the Free Software Foundation; version 2.0 of the License.
	13	*
	14	* ALMOS-MKH is distributed in the hope that it will be useful, but
	15	* WITHOUT ANY WARRANTY; without even the implied warranty of
	16	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	17	* General Public License for more details.
	18	*
	19	* You should have received a copy of the GNU General Public License
	20	* along with ALMOS-MKH; if not, write to the Free Software Foundation,
	21	* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
	22	*/
	23
	24	#ifndef _SHARED_SYSCALLS_H_
	25	#define _SHARED_SYSCALLS_H_
	26
	27	/******************************************************************************************
	28	* This enum defines the mnemonics for the syscall indexes.
	29	* It must be kept consistent with the array defined in do_syscalls.c
	30	*****************************************************************************************/
	31
	32	enum
	33	{
	34	SYS_THREAD_EXIT = 0,
	35	SYS_THREAD_YIELD = 1,
	36	SYS_THREAD_CREATE = 2,
	37	SYS_THREAD_JOIN = 3,
	38	SYS_THREAD_DETACH = 4,
	39	SYS_THREAD_CANCEL = 5,
	40	SYS_SEM = 6,
	41	SYS_CONDVAR = 7,
	42	SYS_BARRIER = 8,
	43	SYS_MUTEX = 9,
	44
	45	SYS_EXIT = 10,
	46	SYS_MUNMAP = 11,
	47	SYS_OPEN = 12,
	48	SYS_MMAP = 13,
	49	SYS_READ = 14,
	50	SYS_WRITE = 15,
	51	SYS_LSEEK = 16,
	52	SYS_CLOSE = 17,
	53	SYS_UNLINK = 18,
	54	SYS_PIPE = 19,
	55
	56	SYS_CHDIR = 20,
	57	SYS_MKDIR = 21,
	58	SYS_MKFIFO = 22,
	59	SYS_OPENDIR = 23,
	60	SYS_READDIR = 24,
	61	SYS_CLOSEDIR = 25,
	62	SYS_GETCWD = 26,
	63	SYS_UNDEFINED_27 = 27, ///
	64	SYS_ALARM = 28,
	65	SYS_RMDIR = 29,
	66
	67	SYS_UTLS = 30,
	68	SYS_CHMOD = 31,
	69	SYS_SIGNAL = 32,
	70	SYS_TIMEOFDAY = 33,
	71	SYS_KILL = 34,
	72	SYS_GETPID = 35,
	73	SYS_FORK = 36,
	74	SYS_EXEC = 37,
	75	SYS_STAT = 38,
[421]	76	SYS_WAIT = 39,
[410]	77
	78	SYS_GET_CONFIG = 40,
	79	SYS_GET_CORE = 41,
	80	SYS_GET_CYCLE = 42,
[421]	81	SYS_DISPLAY = 43,
	82	SYS_UNDEFINED_44 = 44, ///
	83	SYS_THREAD_SLEEP = 45,
	84	SYS_THREAD_WAKEUP = 46,
	85	SYS_TRACE = 47,
	86	SYS_FG = 48,
	87	SYS_UNDEFINED_49 = 49, ///
[410]	88
[421]	89	SYSCALLS_NR = 50,
[410]	90	};
	91
	92	/*******************************************************************************************
[416]	93	* This defines the signal type mnemonics for the kill() syscall.
	94	* WARNING : Only the three SIGKILL / SIGSTOP / SIGCONT are supported (december 2017)
	95	******************************************************************************************/
	96
	97	#define SIGHUP 1 /! hangup /
	98	#define SIGINT 2 /! interrupt /
	99	#define SIGQUIT 3 /! quit /
	100	#define SIGILL 4 /! illegal instruction (not reset when caught) /
	101	#define SIGTRAP 5 /! trace trap (not reset when caught) /
	102	#define SIGABRT 6 /! used by abort, replace SIGIOT in the future /
	103	#define SIGEMT 7 /! EMT instruction /
	104	#define SIGFPE 8 /! floating point exception /
	105	#define SIGKILL 9 /! kill (cannot be caught or ignored) /
	106	#define SIGBUS 10 /! bus error /
	107	#define SIGSEGV 11 /! segmentation violation /
	108	#define SIGSYS 12 /! bad argument to system call /
	109	#define SIGPIPE 13 /! write on a pipe with no one to read it /
	110	#define SIGALRM 14 /! alarm clock /
	111	#define SIGTERM 15 /! software termination signal from kill /
	112	#define SIGURG 16 /! urgent condition on IO channel /
	113	#define SIGSTOP 17 /! sendable stop signal not from tty /
	114	#define SIGTSTP 18 /! stop signal from tty /
	115	#define SIGCONT 19 /! continue a stopped process /
	116	#define SIGCHLD 20 /! to parent on child stop or exit /
	117	#define SIGTTIN 21 /! to readers pgrp upon background tty read /
	118	#define SIGTTOU 22 /! like TTIN for output if (tp->t_local&LTOSTOP) /
	119	#define SIGIO 23 /! input/output possible signal /
	120	#define SIGXCPU 24 /! exceeded CPU time limit /
	121	#define SIGXFSZ 25 /! exceeded file size limit /
	122	#define SIGVTALRM 26 /! virtual time alarm /
	123	#define SIGPROF 27 /! profiling time alarm /
	124	#define SIGWINCH 28 /! window changed /
	125	#define SIGLOST 29 /! resource lost (eg, record-lock lost) /
	126	#define SIGUSR1 30 /! user defined signal 1 /
	127	#define SIGUSR2 31 /! user defined signal 2 /
	128
	129	/*******************************************************************************************
[410]	130	* This enum defines the supported terminaison status values for the exit() syscall.
	131	******************************************************************************************/
	132
	133	typedef enum
	134	{
	135	EXIT_SUCCESS,
	136	EXIT_FAILURE,
	137	}
	138	exit_statut_t;
	139
	140	/*******************************************************************************************
	141	* These typedef define the POSIX thread related types.
	142	******************************************************************************************/
	143
	144	typedef unsigned int sem_t;
	145	typedef unsigned int pthread_cond_t;
	146	typedef unsigned int pthread_condattr_t;
	147	typedef unsigned int pthread_rwlock_t;
	148	typedef unsigned int pthread_rwlockattr_t;
	149	typedef unsigned int pthread_key_t;
	150
	151	/*******************************************************************************************
	152	* This structure and enum define the attributes for the "pthread_create" syscall.
	153	******************************************************************************************/
	154
	155	typedef unsigned int pthread_t;
	156
	157	typedef struct pthread_attr_s
	158	{
	159	unsigned int attributes; /! user defined attributes bit vector /
	160	unsigned int cxy; /! target cluster identifier /
	161	unsigned int lid; /! target core local index /
	162	}
	163	pthread_attr_t;
	164
	165	enum
	166	{
	167	PT_ATTR_DETACH = 0x0001, /! user defined not joinable /
	168	PT_ATTR_CLUSTER_DEFINED = 0x0002, /! user defined target cluster /
	169	PT_ATTR_CORE_DEFINED = 0x0004, /! user defined core index in cluster /
	170	};
	171
	172	/*******************************************************************************************
	173	* This enum defines the operation mnemonics for operations on POSIX unnamed semaphores.
	174	******************************************************************************************/
	175
	176	typedef enum
	177	{
	178	SEM_INIT,
	179	SEM_DESTROY,
	180	SEM_GETVALUE,
	181	SEM_WAIT,
	182	SEM_POST,
	183	}
	184	sem_operation_t;
	185
	186	/*******************************************************************************************
	187	* This enum defines the operation mnemonics for operations on POSIX condition variables.
	188	******************************************************************************************/
	189
	190	typedef enum
	191	{
	192	CONDVAR_INIT,
	193	CONDVAR_DESTROY,
	194	CONDVAR_WAIT,
	195	CONDVAR_SIGNAL,
	196	CONDVAR_BROADCAST,
	197	}
	198	condvar_operation_t;
	199
	200	/*******************************************************************************************
	201	* This enum defines the operation mnemonics for operations on POSIX barriers.
	202	******************************************************************************************/
	203
	204	typedef enum
	205	{
	206	BARRIER_INIT,
	207	BARRIER_DESTROY,
	208	BARRIER_WAIT,
	209	}
	210	barrier_operation_t;
	211
	212	/*******************************************************************************************
	213	* This enum defines the operation mnemonics for operations on POSIX mutex.
	214	******************************************************************************************/
	215
	216	typedef enum
	217	{
	218	MUTEX_INIT,
	219	MUTEX_DESTROY,
	220	MUTEX_LOCK,
	221	MUTEX_UNLOCK,
	222	}
	223	mutex_operation_t;
	224
	225	/*******************************************************************************************
	226	* This enum defines the attributes bit-vector for an "open" syscall.
	227	******************************************************************************************/
	228
	229	typedef enum
	230	{
	231	O_RDONLY = 0x0010000, /! open file in read-only mode /
	232	O_WRONLY = 0x0020000, /! open file in write-only mode /
	233	O_RDWR = 0x0030000, /! open file in read/write mode /
	234	O_NONBLOCK = 0x0040000, /! do not block if data non available /
	235	O_APPEND = 0x0080000, /! append on each write /
	236	O_CREAT = 0x0100000, /! create file if it does not exist /
	237	O_TRUNC = 0x0200000, /! file length is forced to 0 /
	238	O_EXCL = 0x0400000, /! error if VFS_O_CREAT and file exist /
	239	O_SYNC = 0x0800000, /! synchronize File System on each write /
	240	O_CLOEXEC = 0x1000000, /! set the close-on-exec flag in file descriptor /
	241	O_DIR = 0x2000000, /! new file descriptor is for a directory /
	242	}
	243	open_attr_t;
	244
	245	/*******************************************************************************************
	246	* This structure contains the arguments passed to the "mmap" syscall.
	247	******************************************************************************************/
	248
	249	#define MAP_FAILED 0
	250
	251	typedef enum
	252	{
	253	PROT_NONE = 0x0, /! no access /
	254	PROT_EXEC = 0x1, /! executable /
	255	PROT_WRITE = 0x2, /! writable /
	256	PROT_READ = 0x4, /! readable /
	257	}
	258	mmap_prot_t;
	259
	260	typedef enum
	261	{
	262	MAP_FILE = 0x00000000, /! map an open file defined by its fdid /
	263	MAP_ANON = 0x00000001, /! map an anonymous vseg in local cluster /
	264	MAP_REMOTE = 0x00000002, /! map an anonymous vseg in remote cluster (cxy == fdid) /
	265	MAP_PRIVATE = 0x00000010, /! /
	266	MAP_SHARED = 0x00000020, /! /
	267	MAP_FIXED = 0x00000100, /! non supported /
	268	}
	269	mmap_flags_t;
	270
	271	typedef struct mmap_attr_s
	272	{
	273	void * addr; /! requested virtual address (unused : should be NULL) /
	274	unsigned int length; /! requested vseg size (bytes) /
	275	unsigned int prot; /! access modes /
	276	unsigned int flags; /! MAP_FILE / MAP_ANON / MAP_PRIVATE / MAP_SHARED /
	277	unsigned int fdid; /! file descriptor index (if MAP_FILE) /
	278	unsigned int offset; /! file offset (if MAP_FILE) /
	279	}
	280	mmap_attr_t;
	281
	282	/*******************************************************************************************
	283	* This enum defines the operation mnemonics for the "lseek" syscall.
	284	******************************************************************************************/
	285
	286	typedef enum
	287	{
	288	SEEK_SET = 0, /! new_offset <= offset /
	289	SEEK_CUR = 1, /! new_offset <= current_offset + offset /
	290	SEEK_END = 2, /! new_offset <= current_size + offset /
	291	}
	292	lseek_operation_t;
	293
	294	/*******************************************************************************************
	295	* This enum defines the operation mnemonics for the "utls" syscall (Thread Local Storage).
	296	******************************************************************************************/
	297
	298	typedef enum
	299	{
	300	UTLS_SET = 1,
	301	UTLS_GET = 2,
	302	UTLS_GET_ERRNO = 3,
	303	}
	304	utls_operation_t;
	305
	306	/*******************************************************************************************
	307	* This enum defines the operation mnemonics for the "trace" syscall.
	308	******************************************************************************************/
	309
	310	typedef enum
	311	{
	312	TRACE_ON = 0,
	313	TRACE_OFF = 1,
	314	}
	315	trace_operation_t;
	316
[421]	317	/*******************************************************************************************
	318	* This enum defines the type of structure for the "display" syscall.
	319	******************************************************************************************/
	320
	321	typedef enum
	322	{
	323	DISPLAY_STRING = 0,
	324	DISPLAY_VMM = 1,
	325	DISPLAY_SCHED = 2,
	326	DISPLAY_PROCESS = 3,
	327	DISPLAY_VFS = 4,
	328	DISPLAY_CHDEV = 5,
	329	}
	330	display_type_t;
	331
[410]	332	/******************************************************************************************
	333	* This structure define the informations associated to a file descriptor,
	334	* returned to user space by the stat() system call.
	335	*****************************************************************************************/
	336
	337	typedef struct stat
	338	{
	339	unsigned int dev; /! ID of device containing file /
	340	unsigned int inum; /! inode number /
	341	unsigned int mode; /! protection /
	342	unsigned int nlink; /! number of hard links /
	343	unsigned int uid; /! user ID of owner /
	344	unsigned int gid; /! group ID of owner /
	345	unsigned int rdev; /! device ID (if special file) /
	346	unsigned int size; /! total size, in bytes /
	347	unsigned int blksize; /! blocksize for file system I/O /
	348	unsigned int blocks; /! number of 512B blocks allocated /
	349	}
	350	stat_t;
	351
	352	/*******************************************************************************************
	353	* These two structure defines the informations returned to user by the opendir()
	354	* function, used by the readdir() function, and released by the closedir() function.
	355	* - "DIR" describes the complete directory.
	356	* - "dirent" describes one directory entry.
	357	******************************************************************************************/
	358
	359	#define DIRENT_NAME_MAX_LENGTH 56
	360	#define DIRENT_MAX_NUMBER 63
	361
	362	struct dirent
	363	{
	364	unsigned int inum; /! inode identifier /
	365	unsigned int type; /! inode type /
	366	char name[DIRENT_NAME_MAX_LENGTH]; /! directory entry name /
	367	};
	368
	369	typedef struct user_directory
	370	{
	371	struct dirent entry[DIRENT_MAX_NUMBER];
	372	unsigned int current;
	373	}
	374	DIR;
	375
	376	/*******************************************************************************************
	377	* These two structure are used by the gettimeofday() function.
	378	******************************************************************************************/
	379
	380	struct timeval
	381	{
	382	unsigned int tv_sec; /! seconds since Jan. 1, 1970 /
	383	unsigned int tv_usec; /! and microseconds /
	384	};
	385
	386	struct timezone
	387	{
[421]	388	int tz_minuteswest; /! of Greenwich /
[410]	389	int tz_dsttime; /! type of dst correction to apply /
	390	};
	391
	392
	393
	394	#endif // _SHARED_SYSCALLS_H_

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