[LINUX] How to identify the system call number ausyscall

How to find the system call number

You can easily identify it using the command ausyscall.

usage

root@choco002:~# ausyscall
usage: ausyscall [arch] name | number | --dump | --exact

List

root@choco002:~# ausyscall --dump
Using x86_64 syscall table:
0	read
1	write
2	open
3	close
4	stat
5	fstat
6	lstat
7	poll
8	lseek
9	mmap
10	mprotect
11	munmap
12	brk
13	rt_sigaction
14	rt_sigprocmask
15	rt_sigreturn
16	ioctl
17	pread
18	pwrite
19	readv
20	writev
21	access
22	pipe
23	select
24	sched_yield
25	mremap
26	msync
27	mincore
28	madvise
29	shmget
30	shmat
31	shmctl
32	dup
33	dup2
34	pause
35	nanosleep
36	getitimer
37	alarm
38	setitimer
39	getpid
40	sendfile
41	socket
42	connect
43	accept
44	sendto
45	recvfrom
46	sendmsg
47	recvmsg
48	shutdown
49	bind
50	listen
51	getsockname
52	getpeername
53	socketpair
54	setsockopt
55	getsockopt
56	clone
57	fork
58	vfork
59	execve
60	exit
61	wait4
62	kill
63	uname
64	semget
65	semop
66	semctl
67	shmdt
68	msgget
69	msgsnd
70	msgrcv
71	msgctl
72	fcntl
73	flock
74	fsync
75	fdatasync
76	truncate
77	ftruncate
78	getdents
79	getcwd
80	chdir
81	fchdir
82	rename
83	mkdir
84	rmdir
85	creat
86	link
87	unlink
88	symlink
89	readlink
90	chmod
91	fchmod
92	chown
93	fchown
94	lchown
95	umask
96	gettimeofday
97	getrlimit
98	getrusage
99	sysinfo
100	times
101	ptrace
102	getuid
103	syslog
104	getgid
105	setuid
106	setgid
107	geteuid
108	getegid
109	setpgid
110	getppid
111	getpgrp
112	setsid
113	setreuid
114	setregid
115	getgroups
116	setgroups
117	setresuid
118	getresuid
119	setresgid
120	getresgid
121	getpgid
122	setfsuid
123	setfsgid
124	getsid
125	capget
126	capset
127	rt_sigpending
128	rt_sigtimedwait
129	rt_sigqueueinfo
130	rt_sigsuspend
131	sigaltstack
132	utime
133	mknod
134	uselib
135	personality
136	ustat
137	statfs
138	fstatfs
139	sysfs
140	getpriority
141	setpriority
142	sched_setparam
143	sched_getparam
144	sched_setscheduler
145	sched_getscheduler
146	sched_get_priority_max
147	sched_get_priority_min
148	sched_rr_get_interval
149	mlock
150	munlock
151	mlockall
152	munlockall
153	vhangup
154	modify_ldt
155	pivot_root
156	_sysctl
157	prctl
158	arch_prctl
159	adjtimex
160	setrlimit
161	chroot
162	sync
163	acct
164	settimeofday
165	mount
166	umount2
167	swapon
168	swapoff
169	reboot
170	sethostname
171	setdomainname
172	iopl
173	ioperm
174	create_module
175	init_module
176	delete_module
177	get_kernel_syms
178	query_module
179	quotactl
180	nfsservctl
181	getpmsg
182	putpmsg
183	afs_syscall
184	tuxcall
185	security
186	gettid
187	readahead
188	setxattr
189	lsetxattr
190	fsetxattr
191	getxattr
192	lgetxattr
193	fgetxattr
194	listxattr
195	llistxattr
196	flistxattr
197	removexattr
198	lremovexattr
199	fremovexattr
200	tkill
201	time
202	futex
203	sched_setaffinity
204	sched_getaffinity
205	set_thread_area
206	io_setup
207	io_destroy
208	io_getevents
209	io_submit
210	io_cancel
211	get_thread_area
212	lookup_dcookie
213	epoll_create
214	epoll_ctl_old
215	epoll_wait_old
216	remap_file_pages
217	getdents64
218	set_tid_address
219	restart_syscall
220	semtimedop
221	fadvise64
222	timer_create
223	timer_settime
224	timer_gettime
225	timer_getoverrun
226	timer_delete
227	clock_settime
228	clock_gettime
229	clock_getres
230	clock_nanosleep
231	exit_group
232	epoll_wait
233	epoll_ctl
234	tgkill
235	utimes
236	vserver
237	mbind
238	set_mempolicy
239	get_mempolicy
240	mq_open
241	mq_unlink
242	mq_timedsend
243	mq_timedreceive
244	mq_notify
245	mq_getsetattr
246	kexec_load
247	waitid
248	add_key
249	request_key
250	keyctl
251	ioprio_set
252	ioprio_get
253	inotify_init
254	inotify_add_watch
255	inotify_rm_watch
256	migrate_pages
257	openat
258	mkdirat
259	mknodat
260	fchownat
261	futimesat
262	newfstatat
263	unlinkat
264	renameat
265	linkat
266	symlinkat
267	readlinkat
268	fchmodat
269	faccessat
270	pselect6
271	ppoll
272	unshare
273	set_robust_list
274	get_robust_list
275	splice
276	tee
277	sync_file_range
278	vmsplice
279	move_pages
280	utimensat
281	epoll_pwait
282	signalfd
283	timerfd_create
284	eventfd
285	fallocate
286	timerfd_settime
287	timerfd_gettime
288	accept4
289	signalfd4
290	eventfd2
291	epoll_create1
292	dup3
293	pipe2
294	inotify_init1
295	preadv
296	pwritev
297	rt_tgsigqueueinfo
298	perf_event_open
299	recvmmsg
300	fanotify_init
301	fanotify_mark
302	prlimit64
303	name_to_handle_at
304	open_by_handle_at
305	clock_adjtime
306	syncfs
307	sendmmsg
308	setns
309	getcpu
310	process_vm_readv
311	process_vm_writev
312	kcmp
313	finit_module
314	sched_setattr
315	sched_getattr
316	renameat2
317	seccomp
318	getrandom
319	memfd_create
320	kexec_file_load
321	bpf
322	execveat
323	userfaultfd
324	membarrier
325	mlock2
326	copy_file_range
327	preadv2
328	pwritev2
329	pkey_mprotect
330	pkey_alloc
331	pkey_free
332	statx
333	io_pgetevents
334	rseq

It's possible to specify the architecture, but is there a chance to see something other than x86_64. If you don't know the architecture, you can check the architecture of the machine you are currently using by typing uname -m.

reference

ausyscall(8) - Linux man page ausyscall - Unix, Linux Command

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