Assembly Programming on ARM Linux(A1)

システムコールと引数

linux-2.4.18 のソースからシステムコール番号とシステムコールの引数をまとめてみました。
レジスタに値をセットして、

       mov    r0, #0
       swi    #0x900001    @ sys_exit

のようにして呼び出します。

EABI の場合は、r7 にシステムコール番号を指定します。

       mov    r0, #0
       mov    r7, #1       @ sys_exit
       swi    #0

返り値も引数の型もいろいろありますが、結局32ビットの値かアドレスです。

sys#	SWI#	type	NAME	arg1 (r0)	arg2 (r1)	arg3 (r2)	arg4 (r3)	arg5 (r4)	arg6 (r5)
1	900001	long	sys_exit	int error_code
2	900002	int	sys_fork	struct pt_regs *regs
3	900003	ssize_t	sys_read	unsigned int fd	char * buf	size_t count
4	900004	ssize_t	sys_write	unsigned int fd	const char * buf	size_t count
5	900005	long	sys_open	const char * filename	int flags	int mode
6	900006	long	sys_close	unsigned int fd
8	900008	long	sys_creat	const char * pathname	int mode
9	900009	long	sys_link	const char * oldname	const char * newname
10	90000A	long	sys_unlink	const char * pathname
11	90000B	int	sys_execve	char *filenamei	char **argv	char **envp	struct pt_regs *regs
12	90000C	long	sys_chdir	const char * filename
13	90000D	long	sys_time	int * tloc
14	90000E	long	sys_mknod	const char * filename	int mode	dev_t dev
15	90000F	long	sys_chmod	const char * filename	mode_t mode
16	900010	long	sys_lchown16	const char * filename	old_uid_t user	old_gid_t group
19	900013	off_t	sys_lseek	unsigned int fd	off_t offset	unsigned int origin
20	900014	long	sys_getpid	void
21	900015	long	sys_mprotect	unsigned long start	size_t len	unsigned long prot
22	900016	long	sys_oldumount	char * name
23	900017	long	sys_setuid16	old_uid_t uid
24	900018	long	sys_getuid16	void
25	900019	long	sys_stime	int * tptr
26	90001A	int	sys_ptrace	long request	long pid	long addr	long data
27	90001B	unsigned long	sys_alarm	unsigned int seconds
29	90001D	int	sys_pause	void
30	90001E	long	sys_utime	char * filename	struct utimbuf * times
33	900021	long	sys_access	const char * filename	int mode
34	900022	long	sys_nice	int increment
36	900024	long	sys_sync	void
37	900025	long	sys_kill	int pid	int sig
38	900026	long	sys_rename	const char * oldname	const char * newname
39	900027	long	sys_mkdir	const char * pathname	int mode
40	900028	long	sys_rmdir	const char * pathname
41	900029	long	sys_dup	unsigned int fildes
42	90002A	int	sys_pipe	unsigned long * fildes
43	90002B	long	sys_times	struct tms * tbuf
45	90002D	unsigned long	sys_brk	unsigned long brk
46	90002E	long	sys_setgid16	old_gid_t gid
47	90002F	long	sys_getgid16	void
49	900031	long	sys_geteuid16	void
50	900032	long	sys_getegid16	void
51	900033	long	sys_acct	const char *name
52	900034	long	sys_umount	char * name	int flags
54	900036	long	sys_ioctl	unsigned int fd	unsigned int cmd	unsigned long arg
55	900037	long	sys_fcntl	unsigned int fd	unsigned int cmd	unsigned long arg
57	900039	long	sys_setpgid	pid_t pid	pid_t pgid
60	90003C	long	sys_umask	int mask
61	90003D	long	sys_chroot	const char * filename
62	90003E	long	sys_ustat	dev_t dev	struct ustat * ubuf
63	90003F	long	sys_dup2	unsigned int oldfd	unsigned int newfd
64	900040	long	sys_getppid	void
65	900041	long	sys_getpgrp	void
66	900042	long	sys_setsid	void
67	900043	long	sys_sgetmask	void
70	900046	long	sys_setreuid16	old_uid_t ruid	old_uid_t euid
71	900047	long	sys_setregid16	old_gid_t rgid	old_gid_t egid
72	900048	int	sys_sigsuspend	int restart	unsigned long oldmask	old_sigset_t mask	struct pt_regs *regs
73	900049	long	sys_sigpending	old_sigset_t *set
74	90004A	long	sys_sethostname	char *name	int len
75	90004B	long	sys_setrlimit	unsigned int resource	struct rlimit *rlim
76	90004C	long	sys_old_getrlimit	unsigned int resource	struct rlimit *rlim
77	90004D	long	sys_getrusage	int who	struct rusage *ru
78	90004E	long	sys_gettimeofday	struct timeval *tv	struct timezone *tz
79	90004F	long	sys_settimeofday	struct timeval *tv	struct timezone *tz
80	900050	long	sys_getgroups16	int gidsetsize	old_gid_t *grouplist
81	900051	long	sys_setgroups16	int gidsetsize	old_gid_t *grouplist
82	900052	int	old_select	struct sel_arg_struct *arg
83	900053	long	sys_symlink	const char * oldname	const char * newname
85	900055	long	sys_readlink	const char * path	char * buf	int bufsiz
86	900056	long	sys_uselib	const char * library
87	900057	long	sys_swapon	const char * specialfile	int swap_flags
88	900058	long	sys_reboot	int magic1	int magic2	unsigned int cmd	void * arg
89	900059	int	old_readdir	unsigned int fd	void * dirent	unsigned int count
90	90005A	int	old_mmap	struct mmap_arg_struct *arg
91	90005B	long	sys_munmap	unsigned long addr	size_t len
92	90005C	long	sys_truncate	const char * path	unsigned long length
93	90005D	long	sys_ftruncate	unsigned int fd	unsigned long length
94	90005E	long	sys_fchmod	unsigned int fd	mode_t mode
95	90005F	long	sys_fchown16	unsigned int fd	old_uid_t user	old_gid_t group
96	900060	long	sys_getpriority	int which	int who
97	900061	long	sys_setpriority	int which	int who	int niceval
99	900063	long	sys_statfs	const char * path	struct statfs * buf
100	900064	long	sys_fstatfs	unsigned int fd	struct statfs * buf
102	900066	long	sys_socketcall	int call	unsigned long *args
103	900067	long	sys_syslog	int type	char * buf	int len
104	900068	long	sys_setitimer	int which	struct itimerval *value	struct itimerval *ovalue
105	900069	long	sys_getitimer	int which	struct itimerval *value
106	90006A	long	sys_newstat	char * filename	struct stat * statbuf
107	90006B	long	sys_newlstat	char * filename	struct stat * statbuf
108	90006C	long	sys_newfstat	unsigned int fd	struct stat * statbuf
111	90006F	int	sys_vfork	struct pt_regs *regs
114	900072	long	sys_wait4	pid_t pid	unsigned int * stat_addr	int options	struct rusage * ru
115	900073	long	sys_swapoff	const char * specialfile
116	900074	long	sys_sysinfo	struct sysinfo *info
117	900075	int	sys_ipc	uint call	int first	int second	int third	void *ptr	long fifth
118	900076	long	sys_fsync	unsigned int fd
119	900077	int	sys_sigreturn	struct pt_regs *regs
120	900078	int	sys_clone	unsigned long clone_flags	unsigned long newsp	struct pt_regs *regs
121	900079	long	sys_setdomainname	char *name	int len
122	90007A	long	sys_newuname	struct new_utsname * name
124	90007C	long	sys_adjtimex	struct timex *txc_p
125	90007D	unsigned long	sys_mremap	unsigned long addr	unsigned long old_len	unsigned long new_len	unsigned long flags	unsigned long new_addr
126	90007E	long	sys_sigprocmask	int how	old_sigset_t *set	old_sigset_t *oset
127	90007F	unsigned long	sys_create_module	const char *name_user	size_t size
128	900080	long	sys_init_module	const char *name_user	struct module *mod_user
129	900081	long	sys_delete_module	const char *name_user
130	900082	long	sys_get_kernel_syms	struct kernel_sym *table
131	900083	long	sys_quotactl	int cmd	const char *special	int id	caddr_t addr
132	900084	long	sys_getpgid	pid_t pid
133	900085	long	sys_fchdir	unsigned int fd
134	900086	long	sys_bdflush	int func	long data
135	900087	long	sys_sysfs	int option	unsigned long arg1	unsigned long arg2
136	900088	long	sys_personality	u_long personality
138	90008A	long	sys_setfsuid16	old_uid_t uid
139	90008B	long	sys_setfsgid16	old_gid_t gid
140	90008C	long	sys_llseek	unsigned int fd	unsigned long offset_high	unsigned long offset_low	loff_t * result	unsigned int origin
141	90008D	long	sys_getdents	unsigned int fd	void * dirent	unsigned int count
142	90008E	long	sys_select	int n	fd_set *inp	fd_set *outp	fd_set *exp	struct timeval *tvp
143	90008F	long	sys_flock	unsigned int fd	unsigned int cmd
144	900090	long	sys_msync	unsigned long start	size_t len	int flags
145	900091	ssize_t	sys_readv	unsigned long fd	const struct iovec * vector	unsigned long count
146	900092	ssize_t	sys_writev	unsigned long fd	const struct iovec * vector	unsigned long count
147	900093	long	sys_getsid	pid_t pid
148	900094	long	sys_fdatasync	unsigned int fd
150	900096	long	sys_mlock	unsigned long start	size_t len
151	900097	long	sys_munlock	unsigned long start	size_t len
152	900098	long	sys_mlockall	int flags
153	900099	long	sys_munlockall	void
154	90009A	long	sys_sched_setparam	pid_t pid	struct sched_param *param
155	90009B	long	sys_sched_getparam	pid_t pid	struct sched_param *param
156	90009C	long	sys_sched_setscheduler	pid_t pid	int policy	struct sched_param *param
157	90009D	long	sys_sched_getscheduler	pid_t pid
158	90009E	long	sys_sched_yield	void
159	90009F	long	sys_sched_get_priority_max	int policy
160	9000A0	long	sys_sched_get_priority_min	int policy
161	9000A1	long	sys_sched_rr_get_interval	pid_t pid	struct timespec *interval
162	9000A2	long	sys_nanosleep	struct timespec *rqtp	struct timespec *rmtp
163	9000A3	unsigned long	sys_arm_mremap	unsigned long addr	unsigned long old_len	unsigned long new_len	unsigned long flags
164	9000A4	long	sys_setresuid16	old_uid_t ruid	old_uid_t euid	old_uid_t suid
165	9000A5	long	sys_getresuid16	old_uid_t *ruid	old_uid_t *euid	old_uid_t *suid
167	9000A7	long	sys_query_module	const char *name_user	int which	char *buf	size_t bufsize	size_t *ret
168	9000A8	long	sys_poll	struct pollfd * ufds	unsigned int nfds	long timeout
169	9000A9	int	sys_nfsservctl	int cmd	void *argp	void *resp
170	9000AA	long	sys_setresgid16	old_gid_t rgid	old_gid_t egid	old_gid_t sgid
171	9000AB	long	sys_getresgid16	old_gid_t *rgid	old_gid_t *egid	old_gid_t *sgid
172	9000AC	long	sys_prctl	int option	unsigned long arg2	unsigned long arg3	unsigned long arg4	unsigned long arg5
173	9000AD	int	sys_rt_sigreturn	struct pt_regs *regs
174	9000AE	long	sys_rt_sigaction	int sig	const struct sigaction *act	struct sigaction *oact	size_t sigsetsize
175	9000AF	long	sys_rt_sigprocmask	int how	sigset_t *set	sigset_t *oset	size_t sigsetsize
176	9000B0	long	sys_rt_sigpending	sigset_t *set	size_t sigsetsize
177	9000B1	long	sys_rt_sigtimedwait	const sigset_t *uthese	siginfo_t *uinfo	const struct timespec *uts	size_t sigsetsize
178	9000B2	long	sys_rt_sigqueueinfo	int pid	int sig	siginfo_t *uinfo
179	9000B3	int	sys_rt_sigsuspend	sigset_t *unewset	size_t sigsetsize	struct pt_regs *regs
180	9000B4	ssize_t	sys_pread	unsigned int fd	char * buf	size_t count	loff_t pos
181	9000B5	ssize_t	sys_pwrite	unsigned int fd	const char * buf	size_t count	loff_t pos
182	9000B6	long	sys_chown16	const char * filename	old_uid_t user	old_gid_t group
183	9000B7	long	sys_getcwd	char *buf	unsigned long size
184	9000B8	long	sys_capget	cap_user_header_t header	cap_user_data_t dataptr
185	9000B9	long	sys_capset	cap_user_header_t header	const cap_user_data_t data
186	9000BA	int	sys_sigaction	int sig	const struct old_sigaction *act	struct old_sigaction *oact
187	9000BB	ssize_t	sys_sendfile	int out_fd	int in_fd	off_t *offset	size_t count
190	9000BE	long	sys_utimes	char * filename	struct timeval * utimes
191	9000BF	long	sys_getrlimit	unsigned int resource	struct rlimit *rlim
192	9000C0	long	sys_mmap2	unsigned long addr	unsigned long len	unsigned long prot	unsigned long flags	unsigned long fd	unsigned long pgoff
193	9000C1	long	sys_truncate64	const char * path	loff_t length
194	9000C2	long	sys_ftruncate64	unsigned int fd	loff_t length
195	9000C3	long	sys_stat64	char * filename	struct stat64 * statbuf	long flags
196	9000C4	long	sys_lstat64	char * filename	struct stat64 * statbuf	long flags
197	9000C5	long	sys_fstat64	unsigned long fd	struct stat64 * statbuf	long flags
198	9000C6	long	sys_lchown	const char * filename	uid_t user	gid_t group
199	9000C7	long	sys_getuid	void
200	9000C8	long	sys_getgid	void
201	9000C9	long	sys_geteuid	void
202	9000CA	long	sys_getegid	void
203	9000CB	long	sys_setreuid	uid_t ruid	uid_t euid
204	9000CC	long	sys_setregid	gid_t rgid	gid_t egid
205	9000CD	long	sys_getgroups	int gidsetsize	gid_t *grouplist
206	9000CE	long	sys_setgroups	int gidsetsize	gid_t *grouplist
207	9000CF	long	sys_fchown	unsigned int fd	uid_t user	gid_t group
208	9000D0	long	sys_setresuid	uid_t ruid	uid_t euid	uid_t suid
209	9000D1	long	sys_getresuid	uid_t *ruid	uid_t *euid	uid_t *suid
210	9000D2	long	sys_setresgid	gid_t rgid	gid_t egid	gid_t sgid
211	9000D3	long	sys_getresgid	gid_t *rgid	gid_t *egid	gid_t *sgid
212	9000D4	long	sys_chown	const char * filename	uid_t user	gid_t group
213	9000D5	long	sys_setuid	uid_t uid
214	9000D6	long	sys_setgid	gid_t gid
215	9000D7	long	sys_setfsuid	uid_t uid
216	9000D8	long	sys_setfsgid	gid_t gid
217	9000D9	long	sys_getdents64	unsigned int fd	void * dirent	unsigned int count
218	9000DA	long	sys_pivot_root	const char *new_root	const char *put_old
219	9000DB	long	sys_mincore	unsigned long start	size_t len	unsigned char * vec
220	9000DC	long	sys_madvise	unsigned long start	size_t len	int behavior
221	9000DD	long	sys_fcntl64	unsigned int fd	unsigned int cmd	unsigned long arg
224	9000E0	long	sys_gettid	void
225	9000E1	ssize_t	sys_readahead	int fd	loff_t offset	size_t count
S	1	long	sys_socket	int family	int type	int protocol
S	2	long	sys_bind	int fd	struct sockaddr *umyaddr	int addrlen
S	3	long	sys_connect	int fd	struct sockaddr *uservaddr	int addrlen
S	4	long	sys_listen	int fd	int backlog
S	5	long	sys_accept	int fd	struct sockaddr *upeer_sockaddr	int *upeer_addrlen
S	6	long	sys_getsockname	int fd	struct sockaddr *usockaddr	int *usockaddr_len
S	7	long	sys_getpeername	int fd	struct sockaddr *usockaddr	int *usockaddr_len
S	8	long	sys_socketpair	int family	int type	int protocol	int usockvec[2]
S	9	long	sys_send	int fd	void * buff	size_t len	unsigned flags
S	10	long	sys_recv	int fd	void * ubuf	size_t size	unsigned flags
S	11	long	sys_sendto	int fd	void * buff	size_t len	unsigned flags	struct sockaddr *addr	int addr_len
S	12	long	sys_recvfrom	int fd	void * ubuf	size_t size	unsigned flags	struct sockaddr *addr	int *addr_len
S	13	long	sys_shutdown	int fd	int how
S	14	long	sys_setsockopt	int fd	int level	int optname	char *optval	int optlen
S	15	long	sys_getsockopt	int fd	int level	int optname	char *optval	int *optlen
S	16	long	sys_sendmsg	int fd	struct msghdr *msg	unsigned flags
S	17	long	sys_recvmsg	int fd	struct msghdr *msg	unsigned int flags

先頭が S でとなっている行は、ネットワーク関連のシステムコールで sys_socketcall (102) の第1引数に次の列の番号 (10進) を設定して呼び出します。引数はメモリに格納して先頭アドレスを sys_socketcall の第2引数に設定します。

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システムコールと引数