summaryrefslogtreecommitdiffstats
path: root/arch/sparc/kernel/sys32.S
blob: 8475a474273ae1c615ce4277dd3bf74ba1ce9f0a (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
/*
 * sys32.S: I-cache tricks for 32-bit compatibility layer simple
 *          conversions.
 *
 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
 * Copyright (C) 1998 Jakub Jelinek   (jj@ultra.linux.cz)
 */

#include <asm/errno.h>

/* NOTE: call as jump breaks return stack, we have to avoid that */

	.text

#define SIGN1(STUB,SYSCALL,REG1) \
	.align	32; \
	.globl	STUB; \
STUB:	sethi	%hi(SYSCALL), %g1; \
	jmpl	%g1 + %lo(SYSCALL), %g0; \
	sra	REG1, 0, REG1

#define SIGN2(STUB,SYSCALL,REG1,REG2) \
	.align	32; \
	.globl	STUB; \
STUB:	sethi	%hi(SYSCALL), %g1; \
	sra	REG1, 0, REG1; \
	jmpl	%g1 + %lo(SYSCALL), %g0; \
	sra	REG2, 0, REG2

#define SIGN3(STUB,SYSCALL,REG1,REG2,REG3) \
	.align	32; \
	.globl	STUB; \
STUB:	sra	REG1, 0, REG1; \
	sethi	%hi(SYSCALL), %g1; \
	sra	REG2, 0, REG2; \
	jmpl	%g1 + %lo(SYSCALL), %g0; \
	sra	REG3, 0, REG3

#define SIGN4(STUB,SYSCALL,REG1,REG2,REG3,REG4) \
	.align	32; \
	.globl	STUB; \
STUB:	sra	REG1, 0, REG1; \
	sethi	%hi(SYSCALL), %g1; \
	sra	REG2, 0, REG2; \
	sra	REG3, 0, REG3; \
	jmpl	%g1 + %lo(SYSCALL), %g0; \
	sra	REG4, 0, REG4

SIGN1(sys32_exit, sparc_exit, %o0)
SIGN1(sys32_exit_group, sparc_exit_group, %o0)
SIGN1(sys32_wait4, compat_sys_wait4, %o2)
SIGN1(sys32_creat, sys_creat, %o1)
SIGN1(sys32_mknod, sys_mknod, %o1)
SIGN1(sys32_umount, sys_umount, %o1)
SIGN1(sys32_signal, sys_signal, %o0)
SIGN1(sys32_access, sys_access, %o1)
SIGN1(sys32_msync, sys_msync, %o2)
SIGN2(sys32_reboot, sys_reboot, %o0, %o1)
SIGN1(sys32_setitimer, compat_sys_setitimer, %o0)
SIGN1(sys32_getitimer, compat_sys_getitimer, %o0)
SIGN1(sys32_sethostname, sys_sethostname, %o1)
SIGN1(sys32_swapon, sys_swapon, %o1)
SIGN1(sys32_sigaction, compat_sys_sigaction, %o0)
SIGN1(sys32_rt_sigaction, compat_sys_rt_sigaction, %o0)
SIGN1(sys32_sigprocmask, compat_sys_sigprocmask, %o0)
SIGN1(sys32_rt_sigprocmask, compat_sys_rt_sigprocmask, %o0)
SIGN2(sys32_rt_sigqueueinfo, compat_sys_rt_sigqueueinfo, %o0, %o1)
SIGN1(sys32_getrusage, compat_sys_getrusage, %o0)
SIGN1(sys32_setxattr, sys_setxattr, %o4)
SIGN1(sys32_lsetxattr, sys_lsetxattr, %o4)
SIGN1(sys32_fsetxattr, sys_fsetxattr, %o4)
SIGN1(sys32_fgetxattr, sys_fgetxattr, %o0)
SIGN1(sys32_flistxattr, sys_flistxattr, %o0)
SIGN1(sys32_fremovexattr, sys_fremovexattr, %o0)
SIGN2(sys32_tkill, sys_tkill, %o0, %o1)
SIGN1(sys32_epoll_create, sys_epoll_create, %o0)
SIGN3(sys32_epoll_ctl, sys_epoll_ctl, %o0, %o1, %o2)
SIGN3(sys32_epoll_wait, sys_epoll_wait, %o0, %o2, %o3)
SIGN1(sys32_readahead, compat_sys_readahead, %o0)
SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4)
SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5)
SIGN2(sys32_bdflush, sys_bdflush, %o0, %o1)
SIGN1(sys32_mlockall, sys_mlockall, %o0)
SIGN1(sys32_clock_nanosleep, compat_sys_clock_nanosleep, %o1)
SIGN1(sys32_timer_settime, compat_sys_timer_settime, %o1)
SIGN1(sys32_io_submit, compat_sys_io_submit, %o1)
SIGN1(sys32_mq_open, compat_sys_mq_open, %o1)
SIGN1(sys32_select, compat_sys_select, %o0)
SIGN1(sys32_mkdir, sys_mkdir, %o1)
SIGN3(sys32_futex, compat_sys_futex, %o1, %o2, %o5)
SIGN1(sys32_sysfs, compat_sys_sysfs, %o0)
SIGN2(sys32_sendfile, compat_sys_sendfile, %o0, %o1)
SIGN2(sys32_sendfile64, sys_sendfile, %o0, %o1)
SIGN1(sys32_prctl, sys_prctl, %o0)
SIGN1(sys32_sched_rr_get_interval, compat_sys_sched_rr_get_interval, %o0)
SIGN2(sys32_waitpid, sys_waitpid, %o0, %o2)
SIGN1(sys32_getgroups, sys_getgroups, %o0)
SIGN1(sys32_getpgid, sys_getpgid, %o0)
SIGN2(sys32_getpriority, sys_getpriority, %o0, %o1)
SIGN1(sys32_getsid, sys_getsid, %o0)
SIGN2(sys32_kill, sys_kill, %o0, %o1)
SIGN1(sys32_nice, sys_nice, %o0)
SIGN1(sys32_lseek, sys_lseek, %o1)
SIGN2(sys32_open, sparc32_open, %o1, %o2)
SIGN1(sys32_readlink, sys_readlink, %o2)
SIGN1(sys32_sched_get_priority_max, sys_sched_get_priority_max, %o0)
SIGN1(sys32_sched_get_priority_min, sys_sched_get_priority_min, %o0)
SIGN1(sys32_sched_getparam, sys_sched_getparam, %o0)
SIGN1(sys32_sched_getscheduler, sys_sched_getscheduler, %o0)
SIGN1(sys32_sched_setparam, sys_sched_setparam, %o0)
SIGN2(sys32_sched_setscheduler, sys_sched_setscheduler, %o0, %o1)
SIGN1(sys32_getdomainname, sys_getdomainname, %o1)
SIGN1(sys32_setdomainname, sys_setdomainname, %o1)
SIGN1(sys32_setgroups, sys_setgroups, %o0)
SIGN2(sys32_setpgid, sys_setpgid, %o0, %o1)
SIGN3(sys32_setpriority, sys_setpriority, %o0, %o1, %o2)
SIGN1(sys32_ssetmask, sys_ssetmask, %o0)
SIGN2(sys32_syslog, sys_syslog, %o0, %o2)
SIGN1(sys32_umask, sys_umask, %o0)
SIGN3(sys32_tgkill, sys_tgkill, %o0, %o1, %o2)
SIGN1(sys32_sendto, sys_sendto, %o0)
SIGN1(sys32_recvfrom, compat_sys_recvfrom, %o0)
SIGN3(sys32_socket, sys_socket, %o0, %o1, %o2)
SIGN2(sys32_connect, sys_connect, %o0, %o2)
SIGN2(sys32_bind, sys_bind, %o0, %o2)
SIGN2(sys32_listen, sys_listen, %o0, %o1)
SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0)
SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0)
SIGN2(sys32_shutdown, sys_shutdown, %o0, %o1)
SIGN3(sys32_socketpair, sys_socketpair, %o0, %o1, %o2)
SIGN1(sys32_getpeername, sys_getpeername, %o0)
SIGN1(sys32_getsockname, sys_getsockname, %o0)
SIGN2(sys32_ioprio_get, sys_ioprio_get, %o0, %o1)
SIGN3(sys32_ioprio_set, sys_ioprio_set, %o0, %o1, %o2)
SIGN2(sys32_splice, sys_splice, %o0, %o2)
SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5)
SIGN2(sys32_tee, sys_tee, %o0, %o1)
SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0)
SIGN1(sys32_truncate, sys_truncate, %o1)
SIGN1(sys32_ftruncate, sys_ftruncate, %o1)

	.globl		sys32_mmap2
sys32_mmap2:
	sethi		%hi(sys_mmap), %g1
	jmpl		%g1 + %lo(sys_mmap), %g0
	 sllx		%o5, 12, %o5

	.align		32
	.globl		sys32_socketcall
sys32_socketcall:	/* %o0=call, %o1=args */
	cmp		%o0, 1
	bl,pn		%xcc, do_einval
	 cmp		%o0, 18
	bg,pn		%xcc, do_einval
	 sub		%o0, 1, %o0
	sllx		%o0, 5, %o0
	sethi		%hi(__socketcall_table_begin), %g2
	or		%g2, %lo(__socketcall_table_begin), %g2
	jmpl		%g2 + %o0, %g0
	 nop
do_einval:
	retl
	 mov		-EINVAL, %o0

	.align		32
__socketcall_table_begin:

	/* Each entry is exactly 32 bytes. */
do_sys_socket: /* sys_socket(int, int, int) */
1:	ldswa		[%o1 + 0x0] %asi, %o0
	sethi		%hi(sys_socket), %g1
2:	ldswa		[%o1 + 0x8] %asi, %o2
	jmpl		%g1 + %lo(sys_socket), %g0
3:	 ldswa		[%o1 + 0x4] %asi, %o1
	nop
	nop
	nop
do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */
4:	ldswa		[%o1 + 0x0] %asi, %o0
	sethi		%hi(sys_bind), %g1
5:	ldswa		[%o1 + 0x8] %asi, %o2
	jmpl		%g1 + %lo(sys_bind), %g0
6:	 lduwa		[%o1 + 0x4] %asi, %o1
	nop
	nop
	nop
do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */
7:	ldswa		[%o1 + 0x0] %asi, %o0
	sethi		%hi(sys_connect), %g1
8:	ldswa		[%o1 + 0x8] %asi, %o2
	jmpl		%g1 + %lo(sys_connect), %g0
9:	 lduwa		[%o1 + 0x4] %asi, %o1
	nop
	nop
	nop
do_sys_listen: /* sys_listen(int, int) */
10:	ldswa		[%o1 + 0x0] %asi, %o0
	sethi		%hi(sys_listen), %g1
	jmpl		%g1 + %lo(sys_listen), %g0
11:	 ldswa		[%o1 + 0x4] %asi, %o1
	nop
	nop
	nop
	nop
do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */
12:	ldswa		[%o1 + 0x0] %asi, %o0
	sethi		%hi(sys_accept), %g1
13:	lduwa		[%o1 + 0x8] %asi, %o2
	jmpl		%g1 + %lo(sys_accept), %g0
14:	 lduwa		[%o1 + 0x4] %asi, %o1
	nop
	nop
	nop
do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */
15:	ldswa		[%o1 + 0x0] %asi, %o0
	sethi		%hi(sys_getsockname), %g1
16:	lduwa		[%o1 + 0x8] %asi, %o2
	jmpl		%g1 + %lo(sys_getsockname), %g0
17:	 lduwa		[%o1 + 0x4] %asi, %o1
	nop
	nop
	nop
do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */
18:	ldswa		[%o1 + 0x0] %asi, %o0
	sethi		%hi(sys_getpeername), %g1
19:	lduwa		[%o1 + 0x8] %asi, %o2
	jmpl		%g1 + %lo(sys_getpeername), %g0
20:	 lduwa		[%o1 + 0x4] %asi, %o1
	nop
	nop
	nop
do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */
21:	ldswa		[%o1 + 0x0] %asi, %o0
	sethi		%hi(sys_socketpair), %g1
22:	ldswa		[%o1 + 0x8] %asi, %o2
23:	lduwa		[%o1 + 0xc] %asi, %o3
	jmpl		%g1 + %lo(sys_socketpair), %g0
24:	 ldswa		[%o1 + 0x4] %asi, %o1
	nop
	nop
do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */
25:	ldswa		[%o1 + 0x0] %asi, %o0
	sethi		%hi(sys_send), %g1
26:	lduwa		[%o1 + 0x8] %asi, %o2
27:	lduwa		[%o1 + 0xc] %asi, %o3
	jmpl		%g1 + %lo(sys_send), %g0
28:	 lduwa		[%o1 + 0x4] %asi, %o1
	nop
	nop
do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */
29:	ldswa		[%o1 + 0x0] %asi, %o0
	sethi		%hi(sys_recv), %g1
30:	lduwa		[%o1 + 0x8] %asi, %o2
31:	lduwa		[%o1 + 0xc] %asi, %o3
	jmpl		%g1 + %lo(sys_recv), %g0
32:	 lduwa		[%o1 + 0x4] %asi, %o1
	nop
	nop
do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */
33:	ldswa		[%o1 + 0x0] %asi, %o0
	sethi		%hi(sys_sendto), %g1
34:	lduwa		[%o1 + 0x8] %asi, %o2
35:	lduwa		[%o1 + 0xc] %asi, %o3
36:	lduwa		[%o1 + 0x10] %asi, %o4
37:	ldswa		[%o1 + 0x14] %asi, %o5
	jmpl		%g1 + %lo(sys_sendto), %g0
38:	 lduwa		[%o1 + 0x4] %asi, %o1
do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */
39:	ldswa		[%o1 + 0x0] %asi, %o0
	sethi		%hi(sys_recvfrom), %g1
40:	lduwa		[%o1 + 0x8] %asi, %o2
41:	lduwa		[%o1 + 0xc] %asi, %o3
42:	lduwa		[%o1 + 0x10] %asi, %o4
43:	lduwa		[%o1 + 0x14] %asi, %o5
	jmpl		%g1 + %lo(sys_recvfrom), %g0
44:	 lduwa		[%o1 + 0x4] %asi, %o1
do_sys_shutdown: /* sys_shutdown(int, int) */
45:	ldswa		[%o1 + 0x0] %asi, %o0
	sethi		%hi(sys_shutdown), %g1
	jmpl		%g1 + %lo(sys_shutdown), %g0
46:	 ldswa		[%o1 + 0x4] %asi, %o1
	nop
	nop
	nop
	nop
do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */
47:	ldswa		[%o1 + 0x0] %asi, %o0
	sethi		%hi(compat_sys_setsockopt), %g1
48:	ldswa		[%o1 + 0x8] %asi, %o2
49:	lduwa		[%o1 + 0xc] %asi, %o3
50:	ldswa		[%o1 + 0x10] %asi, %o4
	jmpl		%g1 + %lo(compat_sys_setsockopt), %g0
51:	 ldswa		[%o1 + 0x4] %asi, %o1
	nop
do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */
52:	ldswa		[%o1 + 0x0] %asi, %o0
	sethi		%hi(compat_sys_getsockopt), %g1
53:	ldswa		[%o1 + 0x8] %asi, %o2
54:	lduwa		[%o1 + 0xc] %asi, %o3
55:	lduwa		[%o1 + 0x10] %asi, %o4
	jmpl		%g1 + %lo(compat_sys_getsockopt), %g0
56:	 ldswa		[%o1 + 0x4] %asi, %o1
	nop
do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */
57:	ldswa		[%o1 + 0x0] %asi, %o0
	sethi		%hi(compat_sys_sendmsg), %g1
58:	lduwa		[%o1 + 0x8] %asi, %o2
	jmpl		%g1 + %lo(compat_sys_sendmsg), %g0
59:	 lduwa		[%o1 + 0x4] %asi, %o1
	nop
	nop
	nop
do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */
60:	ldswa		[%o1 + 0x0] %asi, %o0
	sethi		%hi(compat_sys_recvmsg), %g1
61:	lduwa		[%o1 + 0x8] %asi, %o2
	jmpl		%g1 + %lo(compat_sys_recvmsg), %g0
62:	 lduwa		[%o1 + 0x4] %asi, %o1
	nop
	nop
	nop
do_sys_accept4: /* sys_accept4(int, struct sockaddr *, int *, int) */
63:	ldswa		[%o1 + 0x0] %asi, %o0
	sethi		%hi(sys_accept4), %g1
64:	lduwa		[%o1 + 0x8] %asi, %o2
65:	ldswa		[%o1 + 0xc] %asi, %o3
	jmpl		%g1 + %lo(sys_accept4), %g0
66:	 lduwa		[%o1 + 0x4] %asi, %o1
	nop
	nop

	.globl		sys32_fanotify_mark
sys32_fanotify_mark:
	sethi		%hi(sys_fanotify_mark), %g1
	sllx		%o2, 32, %o2
	or		%o2, %o3, %o2
	mov		%o4, %o3
	jmpl		%g1 + %lo(sys_fanotify_mark), %g0
	 mov		%o5, %o4

	.section	__ex_table,"a"
	.align		4
	.word		1b, __retl_efault, 2b, __retl_efault
	.word		3b, __retl_efault, 4b, __retl_efault
	.word		5b, __retl_efault, 6b, __retl_efault
	.word		7b, __retl_efault, 8b, __retl_efault
	.word		9b, __retl_efault, 10b, __retl_efault
	.word		11b, __retl_efault, 12b, __retl_efault
	.word		13b, __retl_efault, 14b, __retl_efault
	.word		15b, __retl_efault, 16b, __retl_efault
	.word		17b, __retl_efault, 18b, __retl_efault
	.word		19b, __retl_efault, 20b, __retl_efault
	.word		21b, __retl_efault, 22b, __retl_efault
	.word		23b, __retl_efault, 24b, __retl_efault
	.word		25b, __retl_efault, 26b, __retl_efault
	.word		27b, __retl_efault, 28b, __retl_efault
	.word		29b, __retl_efault, 30b, __retl_efault
	.word		31b, __retl_efault, 32b, __retl_efault
	.word		33b, __retl_efault, 34b, __retl_efault
	.word		35b, __retl_efault, 36b, __retl_efault
	.word		37b, __retl_efault, 38b, __retl_efault
	.word		39b, __retl_efault, 40b, __retl_efault
	.word		41b, __retl_efault, 42b, __retl_efault
	.word		43b, __retl_efault, 44b, __retl_efault
	.word		45b, __retl_efault, 46b, __retl_efault
	.word		47b, __retl_efault, 48b, __retl_efault
	.word		49b, __retl_efault, 50b, __retl_efault
	.word		51b, __retl_efault, 52b, __retl_efault
	.word		53b, __retl_efault, 54b, __retl_efault
	.word		55b, __retl_efault, 56b, __retl_efault
	.word		57b, __retl_efault, 58b, __retl_efault
	.word		59b, __retl_efault, 60b, __retl_efault
	.word		61b, __retl_efault, 62b, __retl_efault
	.word		63b, __retl_efault, 64b, __retl_efault
	.word		65b, __retl_efault, 66b, __retl_efault
	.previous
OpenPOWER on IntegriCloud