sstea備忘録

プログラム、Linux 関連の各種テーブル早見表。

Linux カーネルのソースコードは↓下記サイトで確認可能。
  https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/

  https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/

表の作成は↓下記サイトにお世話になりました。
http://styleme.jp/tool/xls2html/

◆演算順序（C言語）

優先度	演算子	説明	評価順序
1	( )	括弧	→
	[ ]	配列要素
	.	メンバ参照演算子
	->	アロー演算子
2	&	アドレス演算子	←
	*	間接演算子
	~	ビット反転
	!	論理否定
	+	プラス符号
	-	マイナス符号
	++	インクリメント
	--	デクリメント
	sizeof	サイズ
	(cast)	キャスト
3	*	乗算	→
	/	除算
	%	剰余
4	+	加算	→
	-	減算
5	<<	左シフト	→
	>>	右シフト
6	<	より小さい	→
	<=	以下
	>	より大きい
	>=	以上
7	==	等しい	→
	!=	等しくない
8	&	ビット論理積	→
9	^	ビット排他的論理和	→
10	|	ビット論理和	→
11	&&	論理積	→
12	||	論理和	→
13	? :	三項演算子	←
14	=	代入演算子	←
	*=
	/=
	%=
	+=
	-=
	<<=
	>>=
	^=
	&=
	|=
15	,	コンマ演算子	→

◆Linux errno
linux 3.19.3 の下記ファイルを参照し、作成。
- include/uapi/asm-generic/errno-base.h
- include/uapi/asm-generic/errno.h
- include/linux/errno.h

エラー番号	マクロ	コメント
1	EPERM	Operation not permitted
2	ENOENT	No such file or directory
3	ESRCH	No such process
4	EINTR	Interrupted system call
5	EIO	I/O error
6	ENXIO	No such device or address
7	E2BIG	Argument list too long
8	ENOEXEC	Exec format error
9	EBADF	Bad file number
10	ECHILD	No child processes
11	EAGAIN	Try again
12	ENOMEM	Out of memory
13	EACCES	Permission denied
14	EFAULT	Bad address
15	ENOTBLK	Block device required
16	EBUSY	Device or resource busy
17	EEXIST	File exists
18	EXDEV	Cross-device link
19	ENODEV	No such device
20	ENOTDIR	Not a directory
21	EISDIR	Is a directory
22	EINVAL	Invalid argument
23	ENFILE	File table overflow
24	EMFILE	Too many open files
25	ENOTTY	Not a typewriter
26	ETXTBSY	Text file busy
27	EFBIG	File too large
28	ENOSPC	No space left on device
29	ESPIPE	Illegal seek
30	EROFS	Read-only file system
31	EMLINK	Too many links
32	EPIPE	Broken pipe
33	EDOM	Math argument out of domain of func
34	ERANGE	Math result not representable
35	EDEADLK	Resource deadlock would occur
36	ENAMETOOLONG	File name too long
37	ENOLCK	No record locks available
38	ENOSYS	Function not implemented
39	ENOTEMPTY	Directory not empty
40	ELOOP	Too many symbolic links encountered
EAGAIN(11)	EWOULDBLOCK	Operation would block
42	ENOMSG	No message of desired type
43	EIDRM	Identifier removed
44	ECHRNG	Channel number out of range
45	EL2NSYNC	Level 2 not synchronized
46	EL3HLT	Level 3 halted
47	EL3RST	Level 3 reset
48	ELNRNG	Link number out of range
49	EUNATCH	Protocol driver not attached
50	ENOCSI	No CSI structure available
51	EL2HLT	Level 2 halted
52	EBADE	Invalid exchange
53	EBADR	Invalid request descriptor
54	EXFULL	Exchange full
55	ENOANO	No anode
56	EBADRQC	Invalid request code
57	EBADSLT	Invalid slot
EDEADLK(35)	EDEADLOCK
59	EBFONT	Bad font file format
60	ENOSTR	Device not a stream
61	ENODATA	No data available
62	ETIME	Timer expired
63	ENOSR	Out of streams resources
64	ENONET	Machine is not on the network
65	ENOPKG	Package not installed
66	EREMOTE	Object is remote
67	ENOLINK	Link has been severed
68	EADV	Advertise error
69	ESRMNT	Srmount error
70	ECOMM	Communication error on send
71	EPROTO	Protocol error
72	EMULTIHOP	Multihop attempted
73	EDOTDOT	RFS specific error
74	EBADMSG	Not a data message
75	EOVERFLOW	Value too large for defined data type
76	ENOTUNIQ	Name not unique on network
77	EBADFD	File descriptor in bad state
78	EREMCHG	Remote address changed
79	ELIBACC	Can not access a needed shared library
80	ELIBBAD	Accessing a corrupted shared library
81	ELIBSCN	.lib section in a.out corrupted
82	ELIBMAX	Attempting to link in too many shared libraries
83	ELIBEXEC	Cannot exec a shared library directly
84	EILSEQ	Illegal byte sequence
85	ERESTART	Interrupted system call should be restarted
86	ESTRPIPE	Streams pipe error
87	EUSERS	Too many users
88	ENOTSOCK	Socket operation on non-socket
89	EDESTADDRREQ	Destination address required
90	EMSGSIZE	Message too long
91	EPROTOTYPE	Protocol wrong type for socket
92	ENOPROTOOPT	Protocol not available
93	EPROTONOSUPPORT	Protocol not supported
94	ESOCKTNOSUPPORT	Socket type not supported
95	EOPNOTSUPP	Operation not supported on transport endpoint
96	EPFNOSUPPORT	Protocol family not supported
97	EAFNOSUPPORT	Address family not supported by protocol
98	EADDRINUSE	Address already in use
99	EADDRNOTAVAIL	Cannot assign requested address
100	ENETDOWN	Network is down
101	ENETUNREACH	Network is unreachable
102	ENETRESET	Network dropped connection because of reset
103	ECONNABORTED	Software caused connection abort
104	ECONNRESET	Connection reset by peer
105	ENOBUFS	No buffer space available
106	EISCONN	Transport endpoint is already connected
107	ENOTCONN	Transport endpoint is not connected
108	ESHUTDOWN	Cannot send after transport endpoint shutdown
109	ETOOMANYREFS	Too many references: cannot splice
110	ETIMEDOUT	Connection timed out
111	ECONNREFUSED	Connection refused
112	EHOSTDOWN	Host is down
113	EHOSTUNREACH	No route to host
114	EALREADY	Operation already in progress
115	EINPROGRESS	Operation now in progress
116	ESTALE	Stale file handle
117	EUCLEAN	Structure needs cleaning
118	ENOTNAM	Not a XENIX named type file
119	ENAVAIL	No XENIX semaphores available
120	EISNAM	Is a named type file
121	EREMOTEIO	Remote I/O error
122	EDQUOT	Quota exceeded
123	ENOMEDIUM	No medium found
124	EMEDIUMTYPE	Wrong medium type
125	ECANCELED	Operation Canceled
126	ENOKEY	Required key not available
127	EKEYEXPIRED	Key has expired
128	EKEYREVOKED	Key has been revoked
129	EKEYREJECTED	Key was rejected by service
130	EOWNERDEAD	Owner died
131	ENOTRECOVERABLE	State not recoverable
132	ERFKILL	Operation not possible due to RF-kill
133	EHWPOISON	Memory page has hardware error
512	ERESTARTSYS
513	ERESTARTNOINTR
514	ERESTARTNOHAND	restart if no handler..
515	ENOIOCTLCMD	No ioctl command
516	ERESTART_RESTARTBLOCK	restart by calling sys_restart_syscall
517	EPROBE_DEFER	Driver requests probe retry
518	EOPENSTALE	open found a stale dentry
519	-
520	-
521	EBADHANDLE	Illegal NFS file handle
522	ENOTSYNC	Update synchronization mismatch
523	EBADCOOKIE	Cookie is stale
524	ENOTSUPP	Operation is not supported
525	ETOOSMALL	Buffer or request is too small
526	ESERVERFAULT	An untranslatable error occurred
527	EBADTYPE	Type not supported by server
528	EJUKEBOX	Request initiated, but will not complete before timeout
529	EIOCBQUEUED	iocb queued, will get completion event

◆シグナル
linux 3.19.3 の下記ファイルを参照し、作成。
- include/uapi/asm-generic/signal.h

シグナル番号	マクロ	備考
1	SIGHUP
2	SIGINT
3	SIGQUIT
4	SIGILL
5	SIGTRAP
6	SIGABRT / SIGIOT
7	SIGBUS
8	SIGFPE
9	SIGKILL	マスク不可
10	SIGUSR1
11	SIGSEGV
12	SIGUSR2
13	SIGPIPE
14	SIGALRM
15	SIGTERM
16	SIGSTKFLT
17	SIGCHLD
18	SIGCONT
19	SIGSTOP	マスク不可
20	SIGTSTP
21	SIGTTIN
22	SIGTTOU
23	SIGURG
24	SIGXCPU
25	SIGXFSZ
26	SIGVTALRM
27	SIGPROF
28	SIGWINCH
29	SIGIO	/*SIGLOST*/
SIGIO(29)	SIGPOLL
30	SIGPWR
31	SIGSYS / SIGUNUSED

◆Linux システムコール
linux 3.19.3 の下記ファイルを参照し作成。
- arch/arm/include/uapi/asm/unistd.h

システムコール番号	シンボル	コメント
0	restart_syscall
1	exit
2	fork
3	read
4	write
5	open
6	close
7	-	7 was sys_waitpid
8	creat
9	link
10	unlink
11	execve
12	chdir
13	time
14	mknod
15	chmod
16	lchown
17	-	17 was sys_break
18	-	18 was sys_stat
19	lseek
20	getpid
21	mount
22	umount
23	setuid
24	getuid
25	stime
26	ptrace
27	alarm
28	-	28 was sys_fstat
29	pause
30	utime
31	-	31 was sys_stty
32	-	32 was sys_gtty
33	access
34	nice
35	-	35 was sys_ftime
36	sync
37	kill
38	rename
39	mkdir
40	rmdir
41	dup
42	pipe
43	times
44	-	44 was sys_prof
45	brk
46	setgid
47	getgid
48	-	48 was sys_signal
49	geteuid
50	getegid
51	acct
52	umount2
53	-	53 was sys_lock
54	ioctl
55	fcntl
56	-	56 was sys_mpx
57	setpgid
58	-	58 was sys_ulimit
59	-	59 was sys_olduname
60	umask
61	chroot
62	ustat
63	dup2
64	getppid
65	getpgrp
66	setsid
67	sigaction
68	-	68 was sys_sgetmask
69	-	69 was sys_ssetmask
70	setreuid
71	setregid
72	sigsuspend
73	sigpending
74	sethostname
75	setrlimit
76	getrlimit	Back compat 2GB limited rlimit
77	getrusage
78	gettimeofday
79	settimeofday
80	getgroups
81	setgroups
82	select
83	symlink
84	-	84 was sys_lstat
85	readlink
86	uselib
87	swapon
88	reboot
89	readdir
90	mmap
91	munmap
92	truncate
93	ftruncate
94	fchmod
95	fchown
96	getpriority
97	setpriority
98	-	98 was sys_profil
99	statfs
100	fstatfs
101	-	101 was sys_ioperm
102	socketcall
103	syslog
104	setitimer
105	getitimer
106	stat
107	lstat
108	fstat
109	-	109 was sys_uname
110	-	110 was sys_iopl
111	vhangup
112	-	112 was sys_idle
113	syscall	syscall to call a syscall!
114	wait4
115	swapoff
116	sysinfo
117	ipc
118	fsync
119	sigreturn
120	clone
121	setdomainname
122	uname
123	-	123 was sys_modify_ldt
124	adjtimex
125	mprotect
126	sigprocmask
127	-	127 was sys_create_module
128	init_module
129	delete_module
130	-	130 was sys_get_kernel_syms
131	quotactl
132	getpgid
133	fchdir
134	bdflush
135	sysfs
136	personality
137	-	137 was sys_afs_syscall
138	setfsuid
139	setfsgid
140	_llseek
141	getdents
142	_newselect
143	flock
144	msync
145	readv
146	writev
147	getsid
148	fdatasync
149	_sysctl
150	mlock
151	munlock
152	mlockall
153	munlockall
154	sched_setparam
155	sched_getparam
156	sched_setscheduler
157	sched_getscheduler
158	sched_yield
159	sched_get_priority_max
160	sched_get_priority_min
161	sched_rr_get_interval
162	nanosleep
163	mremap
164	setresuid
165	getresuid
166	-	166 was sys_vm86
167	-	167 was sys_query_module
168	poll
169	nfsservctl
170	setresgid
171	getresgid
172	prctl
173	rt_sigreturn
174	rt_sigaction
175	rt_sigprocmask
176	rt_sigpending
177	rt_sigtimedwait
178	rt_sigqueueinfo
179	rt_sigsuspend
180	pread64
181	pwrite64
182	chown
183	getcwd
184	capget
185	capset
186	sigaltstack
187	sendfile
188	-	188 reserved
189	-	189 reserved
190	vfork
191	ugetrlimit	SuS compliant getrlimit
192	mmap2
193	truncate64
194	ftruncate64
195	stat64
196	lstat64
197	fstat64
198	lchown32
199	getuid32
200	getgid32
201	geteuid32
202	getegid32
203	setreuid32
204	setregid32
205	getgroups32
206	setgroups32
207	fchown32
208	setresuid32
209	getresuid32
210	setresgid32
211	getresgid32
212	chown32
213	setuid32
214	setgid32
215	setfsuid32
216	setfsgid32
217	getdents64
218	pivot_root
219	mincore
220	madvise
221	fcntl64
222	-	222 for tux
223	-	223 is unused
224	gettid
225	readahead
226	setxattr
227	lsetxattr
228	fsetxattr
229	getxattr
230	lgetxattr
231	fgetxattr
232	listxattr
233	llistxattr
234	flistxattr
235	removexattr
236	lremovexattr
237	fremovexattr
238	tkill
239	sendfile64
240	futex
241	sched_setaffinity
242	sched_getaffinity
243	io_setup
244	io_destroy
245	io_getevents
246	io_submit
247	io_cancel
248	exit_group
249	lookup_dcookie
250	epoll_create
251	epoll_ctl
252	epoll_wait
253	remap_file_pages
254	-	254 for set_thread_area
255	-	255 for get_thread_area
256	set_tid_address
257	timer_create
258	timer_settime
259	timer_gettime
260	timer_getoverrun
261	timer_delete
262	clock_settime
263	clock_gettime
264	clock_getres
265	clock_nanosleep
266	statfs64
267	fstatfs64
268	tgkill
269	utimes
270	arm_fadvise64_64
271	pciconfig_iobase
272	pciconfig_read
273	pciconfig_write
274	mq_open
275	mq_unlink
276	mq_timedsend
277	mq_timedreceive
278	mq_notify
279	mq_getsetattr
280	waitid
281	socket
282	bind
283	connect
284	listen
285	accept
286	getsockname
287	getpeername
288	socketpair
289	send
290	sendto
291	recv
292	recvfrom
293	shutdown
294	setsockopt
295	getsockopt
296	sendmsg
297	recvmsg
298	semop
299	semget
300	semctl
301	msgsnd
302	msgrcv
303	msgget
304	msgctl
305	shmat
306	shmdt
307	shmget
308	shmctl
309	add_key
310	request_key
311	keyctl
312	semtimedop
313	vserver
314	ioprio_set
315	ioprio_get
316	inotify_init
317	inotify_add_watch
318	inotify_rm_watch
319	mbind
320	get_mempolicy
321	set_mempolicy
322	openat
323	mkdirat
324	mknodat
325	fchownat
326	futimesat
327	fstatat64
328	unlinkat
329	renameat
330	linkat
331	symlinkat
332	readlinkat
333	fchmodat
334	faccessat
335	pselect6
336	ppoll
337	unshare
338	set_robust_list
339	get_robust_list
340	splice
341	arm_sync_file_range	sync_file_range2
342	tee
343	vmsplice
344	move_pages
345	getcpu
346	epoll_pwait
347	kexec_load
348	utimensat
349	signalfd
350	timerfd_create
351	eventfd
352	fallocate
353	timerfd_settime
354	timerfd_gettime
355	signalfd4
356	eventfd2
357	epoll_create1
358	dup3
359	pipe2
360	inotify_init1
361	preadv
362	pwritev
363	rt_tgsigqueueinfo
364	perf_event_open
365	recvmmsg
366	accept4
367	fanotify_init
368	fanotify_mark
369	prlimit64
370	name_to_handle_at
371	open_by_handle_at
372	clock_adjtime
373	syncfs
374	sendmmsg
375	setns
376	process_vm_readv
377	process_vm_writev
378	kcmp
379	finit_module
380	sched_setattr
381	sched_getattr
382	renameat2
383	seccomp
384	getrandom
385	memfd_create
386	bpf
387	execveat

各種プログラム、Makefile サンプル。

◆シェルサンプル
shell/test.sh

#!/bin/bash

# ./test.sh 1 "2 3" 4

TMPFILE=/tmp/test

init() {
        if [ -f ${TMPFILE} ]; then
                rm -f ${TMPFILE}
        elif [ -e ${TMPFILE} ]; then
                exit 1
        fi

        touch ${TMPFILE}
        if [ $? -ne 0 ]; then
                exit 1
        fi
}

main() {
        local arg
        local i=0

        for arg in "$@"; do
                echo ${arg} >> ${TMPFILE}
                list[${i}]=${arg}
                i=$((${i} + 1))
        done

        i=0
        while [ ${i} -lt ${#list[@]} ]; do
                echo ${list[${i}]}
                i=$((${i} + 1))
        done

        list2=(`cat ${TMPFILE}`)
        for i in "${list[@]}"; do
                echo ${i}
        done

        while read line; do
                echo ${line}
        done < ${TMPFILE}
}

init
main "$@"

◆Makefileサンプル
csrc/Makefile

CC=gcc
CFLAGS ?= -O2 -Wall
LDFLAGS ?=

OBJS=main.o
TARGET=test

.PHONY: all clean
all: $(TARGET)

$(TARGET): $(OBJS)
        $(CC) -o $@ $^ $(LDFLAGS)

debug:
        $(MAKE) -C . CFLAGS="$(CFLAGS) -DDEBUG"

.c.o:
        $(CC) -c $< $(CFLAGS)

clean:
        $(RM) $(TARGET) $(OBJS)

上記サンプル↓

$ curl -O http://sstea.blog.jp/raspi/csrc/Makefile

csrc/main.c

#include <stdio.h>

#ifdef DEBUG
#define DEBUG(...)    printf("<DEBUG> " __VA_ARGS__)
#else /* !DEBUG */
#define DEBUG(...)    do { } while (0)
#endif /* !DEBUG */

int main(int argc, char **argv)
{
    DEBUG("hello\n");
    return 0;
}

◆Linux LKM（ローダブルカーネルモジュール）サンプル
kbuild/Makefile （KDIR は場合によっては任意に変更）

obj-y := test/

KDIR ?= /lib/module/$(shell uname -r)/build
PWD := $(shell pwd)

EXTRA_CFLAGS =

modules:
    make -C $(KDIR) M=$(PWD) V=1 modules

clean:
    make -C $(KDIR) M=$(PWD) V=1 clean

上記サンプル↓

$ curl -O http://sstea.blog.jp/raspi/kbuild/Makefile

kbuild/test/Makefile

obj-m:= test.o

test-objs := test_base.o

test-objs に.oファイルを複数指定することで、複数ファイルから1つのローダブルカーネルモジュール(.koファイル)を作成可能。

kbuild/test/test_base.c

#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/init.h>

static int __init test_init(void)
{
    printk("test_init\n");
    return 0;
}
module_init(test_init);

static void __exit test_exit(void)
{
    printk("test_exit\n");
}
module_exit(test_exit);