Linux 兼容性

“We don’t break user space.”

-– Linus Torvalds

Asterinas 致力于保持与 Linux ABI 的兼容性，确保为 Linux 设计的应用程序和管理工具能够在 Asterinas 中无缝运行。虽然我们优先考虑兼容性，但需要注意的是，Asterinas 目前不支持也不会在未来支持 Linux 内核模块的加载。

系统调用

在撰写本文时，Asterinas 支持 x86-64 架构的 230 多种 Linux 系统调用，这些系统调用总结如下表所示。

Numbers	Names	Supported	Flag Coverage
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	pread64	✅	💯
18	pwrite64	✅	💯
19	readv	✅	💯
20	writev	✅	💯
21	access	✅	💯
22	pipe	✅	💯
23	select	✅	💯
24	sched_yield	✅	💯
25	mremap	✅	⚠️
26	msync	✅	⚠️
27	mincore	❌	N/A
28	madvise	✅	⚠️
29	shmget	❌	N/A
30	shmat	❌	N/A
31	shmctl	❌	N/A
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	❌	N/A
68	msgget	❌	N/A
69	msgsnd	❌	N/A
70	msgrcv	❌	N/A
71	msgctl	❌	N/A
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	❌	N/A
101	ptrace	✅	⚠️
102	getuid	✅	💯
103	syslog	❌	N/A
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	❌	N/A
130	rt_sigsuspend	✅	💯
131	sigaltstack	✅	💯
132	utime	✅	💯
133	mknod	✅	💯
134	uselib	❌	N/A
135	personality	❌	N/A
136	ustat	❌	N/A
137	statfs	✅	💯
138	fstatfs	✅	💯
139	sysfs	❌	N/A
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	❌	N/A
149	mlock	❌	N/A
150	munlock	❌	N/A
151	mlockall	❌	N/A
152	munlockall	❌	N/A
153	vhangup	❌	N/A
154	modify_ldt	❌	N/A
155	pivot_root	✅	💯
156	_sysctl	❌	N/A
157	prctl	✅	⚠️
158	arch_prctl	✅	⚠️
159	adjtimex	❌	N/A
160	setrlimit	✅	💯
161	chroot	✅	💯
162	sync	✅	💯
163	acct	❌	N/A
164	settimeofday	❌	N/A
165	mount	✅	⚠️
166	umount2	✅	⚠️
167	swapon	❌	N/A
168	swapoff	❌	N/A
169	reboot	✅	⚠️
170	sethostname	✅	💯
171	setdomainname	✅	💯
172	iopl	❌	N/A
173	ioperm	❌	N/A
174	create_module	❌	N/A
175	init_module	❌	N/A
176	delete_module	❌	N/A
177	get_kernel_syms	❌	N/A
178	query_module	❌	N/A
179	quotactl	❌	N/A
180	nfsservctl	❌	N/A
181	getpmsg	❌	N/A
182	putpmsg	❌	N/A
183	afs_syscall	❌	N/A
184	tuxcall	❌	N/A
185	security	❌	N/A
186	gettid	✅	💯
187	readahead	❌	N/A
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	❌	N/A
206	io_setup	❌	N/A
207	io_destroy	❌	N/A
208	io_getevents	❌	N/A
209	io_submit	❌	N/A
210	io_cancel	❌	N/A
211	get_thread_area	❌	N/A
212	lookup_dcookie	❌	N/A
213	epoll_create	✅	💯
214	epoll_ctl_old	❌	N/A
215	epoll_wait_old	❌	N/A
216	remap_file_pages	❌	N/A
217	getdents64	✅	💯
218	set_tid_address	✅	💯
219	restart_syscall	❌	N/A
220	semtimedop	✅	⚠️
221	fadvise64	✅	⚠️
222	timer_create	✅	⚠️
223	timer_settime	✅	💯
224	timer_gettime	✅	💯
225	timer_getoverrun	❌	N/A
226	timer_delete	✅	💯
227	clock_settime	❌	N/A
228	clock_gettime	✅	⚠️
229	clock_getres	❌	N/A
230	clock_nanosleep	✅	⚠️
231	exit_group	✅	💯
232	epoll_wait	✅	💯
233	epoll_ctl	✅	⚠️
234	tgkill	✅	💯
235	utimes	✅	💯
236	vserver	❌	N/A
237	mbind	❌	N/A
238	set_mempolicy	❌	N/A
239	get_mempolicy	❌	N/A
240	mq_open	❌	N/A
241	mq_unlink	❌	N/A
242	mq_timedsend	❌	N/A
243	mq_timedreceive	❌	N/A
244	mq_notify	❌	N/A
245	mq_getsetattr	❌	N/A
246	kexec_load	❌	N/A
247	waitid	✅	⚠️
248	add_key	❌	N/A
249	request_key	❌	N/A
250	keyctl	❌	N/A
251	ioprio_set	✅	⚠️
252	ioprio_get	✅	⚠️
253	inotify_init	✅	💯
254	inotify_add_watch	✅	⚠️
255	inotify_rm_watch	✅	💯
256	migrate_pages	❌	N/A
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	❌	N/A
275	splice	❌	N/A
276	tee	❌	N/A
277	sync_file_range	❌	N/A
278	vmsplice	❌	N/A
279	move_pages	❌	N/A
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	❌	N/A
298	perf_event_open	❌	N/A
299	recvmmsg	❌	N/A
300	fanotify_init	❌	N/A
301	fanotify_mark	❌	N/A
302	prlimit64	✅	💯
303	name_to_handle_at	❌	N/A
304	open_by_handle_at	❌	N/A
305	clock_adjtime	❌	N/A
306	syncfs	✅	💯
307	sendmmsg	✅	⚠️
308	setns	✅	⚠️
309	getcpu	✅	💯
310	process_vm_readv	❌	N/A
311	process_vm_writev	❌	N/A
312	kcmp	❌	N/A
313	finit_module	❌	N/A
314	sched_setattr	✅	⚠️
315	sched_getattr	✅	⚠️
316	renameat2	✅	⚠️
318	getrandom	✅	⚠️
319	memfd_create	✅	⚠️
322	execveat	✅	💯
327	preadv2	✅	⚠️
328	pwritev2	✅	⚠️
332	statx	✅	⚠️
424	pidfd_send_signal	✅	💯
434	pidfd_open	✅	💯
435	clone3	✅	⚠️
436	close_range	✅	💯
438	pidfd_getfd	✅	💯
439	faccessat2	✅	⚠️
441	epoll_pwait2	✅	💯
452	fchmodat2	✅	💯

Supported:
- ✅ = syscall supported
- ❌ = not supported
Flag Coverage:
- 💯 = 所有 flags/命令/模式均受支持
- ⚠️ = 系统调用有效，但某些 flags/模式尚未实现
- ❓ = 已实现，但我们尚未审核其覆盖范围
- N/A = 不适用（例如，不支持系统调用）