1/*
2 * sys32.S: I-cache tricks for 32-bit compatibility layer simple
3 *          conversions.
4 *
5 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
6 * Copyright (C) 1998 Jakub Jelinek   (jj@ultra.linux.cz)
7 */
8
9#include <asm/errno.h>
10
11/* NOTE: call as jump breaks return stack, we have to avoid that */
12
13	.text
14
15#define SIGN1(STUB,SYSCALL,REG1) \
16	.align	32; \
17	.globl	STUB; \
18STUB:	sethi	%hi(SYSCALL), %g1; \
19	jmpl	%g1 + %lo(SYSCALL), %g0; \
20	sra	REG1, 0, REG1
21
22#define SIGN2(STUB,SYSCALL,REG1,REG2) \
23	.align	32; \
24	.globl	STUB; \
25STUB:	sethi	%hi(SYSCALL), %g1; \
26	sra	REG1, 0, REG1; \
27	jmpl	%g1 + %lo(SYSCALL), %g0; \
28	sra	REG2, 0, REG2
29
30#define SIGN3(STUB,SYSCALL,REG1,REG2,REG3) \
31	.align	32; \
32	.globl	STUB; \
33STUB:	sra	REG1, 0, REG1; \
34	sethi	%hi(SYSCALL), %g1; \
35	sra	REG2, 0, REG2; \
36	jmpl	%g1 + %lo(SYSCALL), %g0; \
37	sra	REG3, 0, REG3
38
39SIGN1(sys32_readahead, compat_sys_readahead, %o0)
40SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4)
41SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5)
42SIGN1(sys32_clock_nanosleep, compat_sys_clock_nanosleep, %o1)
43SIGN1(sys32_timer_settime, compat_sys_timer_settime, %o1)
44SIGN1(sys32_io_submit, compat_sys_io_submit, %o1)
45SIGN1(sys32_mq_open, compat_sys_mq_open, %o1)
46SIGN1(sys32_select, compat_sys_select, %o0)
47SIGN1(sys32_futex, compat_sys_futex, %o1)
48SIGN1(sys32_recvfrom, compat_sys_recvfrom, %o0)
49SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0)
50SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0)
51SIGN2(sys32_renameat2, sys_renameat2, %o0, %o2)
52
53	.globl		sys32_mmap2
54sys32_mmap2:
55	sethi		%hi(sys_mmap), %g1
56	jmpl		%g1 + %lo(sys_mmap), %g0
57	 sllx		%o5, 12, %o5
58
59	.align		32
60	.globl		sys32_socketcall
61sys32_socketcall:	/* %o0=call, %o1=args */
62	cmp		%o0, 1
63	bl,pn		%xcc, do_einval
64	 cmp		%o0, 18
65	bg,pn		%xcc, do_einval
66	 sub		%o0, 1, %o0
67	sllx		%o0, 5, %o0
68	sethi		%hi(__socketcall_table_begin), %g2
69	or		%g2, %lo(__socketcall_table_begin), %g2
70	jmpl		%g2 + %o0, %g0
71	 nop
72do_einval:
73	retl
74	 mov		-EINVAL, %o0
75
76	.align		32
77__socketcall_table_begin:
78
79	/* Each entry is exactly 32 bytes. */
80do_sys_socket: /* sys_socket(int, int, int) */
811:	ldswa		[%o1 + 0x0] %asi, %o0
82	sethi		%hi(sys_socket), %g1
832:	ldswa		[%o1 + 0x8] %asi, %o2
84	jmpl		%g1 + %lo(sys_socket), %g0
853:	 ldswa		[%o1 + 0x4] %asi, %o1
86	nop
87	nop
88	nop
89do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */
904:	ldswa		[%o1 + 0x0] %asi, %o0
91	sethi		%hi(sys_bind), %g1
925:	ldswa		[%o1 + 0x8] %asi, %o2
93	jmpl		%g1 + %lo(sys_bind), %g0
946:	 lduwa		[%o1 + 0x4] %asi, %o1
95	nop
96	nop
97	nop
98do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */
997:	ldswa		[%o1 + 0x0] %asi, %o0
100	sethi		%hi(sys_connect), %g1
1018:	ldswa		[%o1 + 0x8] %asi, %o2
102	jmpl		%g1 + %lo(sys_connect), %g0
1039:	 lduwa		[%o1 + 0x4] %asi, %o1
104	nop
105	nop
106	nop
107do_sys_listen: /* sys_listen(int, int) */
10810:	ldswa		[%o1 + 0x0] %asi, %o0
109	sethi		%hi(sys_listen), %g1
110	jmpl		%g1 + %lo(sys_listen), %g0
11111:	 ldswa		[%o1 + 0x4] %asi, %o1
112	nop
113	nop
114	nop
115	nop
116do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */
11712:	ldswa		[%o1 + 0x0] %asi, %o0
118	sethi		%hi(sys_accept), %g1
11913:	lduwa		[%o1 + 0x8] %asi, %o2
120	jmpl		%g1 + %lo(sys_accept), %g0
12114:	 lduwa		[%o1 + 0x4] %asi, %o1
122	nop
123	nop
124	nop
125do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */
12615:	ldswa		[%o1 + 0x0] %asi, %o0
127	sethi		%hi(sys_getsockname), %g1
12816:	lduwa		[%o1 + 0x8] %asi, %o2
129	jmpl		%g1 + %lo(sys_getsockname), %g0
13017:	 lduwa		[%o1 + 0x4] %asi, %o1
131	nop
132	nop
133	nop
134do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */
13518:	ldswa		[%o1 + 0x0] %asi, %o0
136	sethi		%hi(sys_getpeername), %g1
13719:	lduwa		[%o1 + 0x8] %asi, %o2
138	jmpl		%g1 + %lo(sys_getpeername), %g0
13920:	 lduwa		[%o1 + 0x4] %asi, %o1
140	nop
141	nop
142	nop
143do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */
14421:	ldswa		[%o1 + 0x0] %asi, %o0
145	sethi		%hi(sys_socketpair), %g1
14622:	ldswa		[%o1 + 0x8] %asi, %o2
14723:	lduwa		[%o1 + 0xc] %asi, %o3
148	jmpl		%g1 + %lo(sys_socketpair), %g0
14924:	 ldswa		[%o1 + 0x4] %asi, %o1
150	nop
151	nop
152do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */
15325:	ldswa		[%o1 + 0x0] %asi, %o0
154	sethi		%hi(sys_send), %g1
15526:	lduwa		[%o1 + 0x8] %asi, %o2
15627:	lduwa		[%o1 + 0xc] %asi, %o3
157	jmpl		%g1 + %lo(sys_send), %g0
15828:	 lduwa		[%o1 + 0x4] %asi, %o1
159	nop
160	nop
161do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */
16229:	ldswa		[%o1 + 0x0] %asi, %o0
163	sethi		%hi(sys_recv), %g1
16430:	lduwa		[%o1 + 0x8] %asi, %o2
16531:	lduwa		[%o1 + 0xc] %asi, %o3
166	jmpl		%g1 + %lo(sys_recv), %g0
16732:	 lduwa		[%o1 + 0x4] %asi, %o1
168	nop
169	nop
170do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */
17133:	ldswa		[%o1 + 0x0] %asi, %o0
172	sethi		%hi(sys_sendto), %g1
17334:	lduwa		[%o1 + 0x8] %asi, %o2
17435:	lduwa		[%o1 + 0xc] %asi, %o3
17536:	lduwa		[%o1 + 0x10] %asi, %o4
17637:	ldswa		[%o1 + 0x14] %asi, %o5
177	jmpl		%g1 + %lo(sys_sendto), %g0
17838:	 lduwa		[%o1 + 0x4] %asi, %o1
179do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */
18039:	ldswa		[%o1 + 0x0] %asi, %o0
181	sethi		%hi(sys_recvfrom), %g1
18240:	lduwa		[%o1 + 0x8] %asi, %o2
18341:	lduwa		[%o1 + 0xc] %asi, %o3
18442:	lduwa		[%o1 + 0x10] %asi, %o4
18543:	lduwa		[%o1 + 0x14] %asi, %o5
186	jmpl		%g1 + %lo(sys_recvfrom), %g0
18744:	 lduwa		[%o1 + 0x4] %asi, %o1
188do_sys_shutdown: /* sys_shutdown(int, int) */
18945:	ldswa		[%o1 + 0x0] %asi, %o0
190	sethi		%hi(sys_shutdown), %g1
191	jmpl		%g1 + %lo(sys_shutdown), %g0
19246:	 ldswa		[%o1 + 0x4] %asi, %o1
193	nop
194	nop
195	nop
196	nop
197do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */
19847:	ldswa		[%o1 + 0x0] %asi, %o0
199	sethi		%hi(compat_sys_setsockopt), %g1
20048:	ldswa		[%o1 + 0x8] %asi, %o2
20149:	lduwa		[%o1 + 0xc] %asi, %o3
20250:	ldswa		[%o1 + 0x10] %asi, %o4
203	jmpl		%g1 + %lo(compat_sys_setsockopt), %g0
20451:	 ldswa		[%o1 + 0x4] %asi, %o1
205	nop
206do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */
20752:	ldswa		[%o1 + 0x0] %asi, %o0
208	sethi		%hi(compat_sys_getsockopt), %g1
20953:	ldswa		[%o1 + 0x8] %asi, %o2
21054:	lduwa		[%o1 + 0xc] %asi, %o3
21155:	lduwa		[%o1 + 0x10] %asi, %o4
212	jmpl		%g1 + %lo(compat_sys_getsockopt), %g0
21356:	 ldswa		[%o1 + 0x4] %asi, %o1
214	nop
215do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */
21657:	ldswa		[%o1 + 0x0] %asi, %o0
217	sethi		%hi(compat_sys_sendmsg), %g1
21858:	lduwa		[%o1 + 0x8] %asi, %o2
219	jmpl		%g1 + %lo(compat_sys_sendmsg), %g0
22059:	 lduwa		[%o1 + 0x4] %asi, %o1
221	nop
222	nop
223	nop
224do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */
22560:	ldswa		[%o1 + 0x0] %asi, %o0
226	sethi		%hi(compat_sys_recvmsg), %g1
22761:	lduwa		[%o1 + 0x8] %asi, %o2
228	jmpl		%g1 + %lo(compat_sys_recvmsg), %g0
22962:	 lduwa		[%o1 + 0x4] %asi, %o1
230	nop
231	nop
232	nop
233do_sys_accept4: /* sys_accept4(int, struct sockaddr *, int *, int) */
23463:	ldswa		[%o1 + 0x0] %asi, %o0
235	sethi		%hi(sys_accept4), %g1
23664:	lduwa		[%o1 + 0x8] %asi, %o2
23765:	ldswa		[%o1 + 0xc] %asi, %o3
238	jmpl		%g1 + %lo(sys_accept4), %g0
23966:	 lduwa		[%o1 + 0x4] %asi, %o1
240	nop
241	nop
242
243	.section	__ex_table,"a"
244	.align		4
245	.word		1b, __retl_efault, 2b, __retl_efault
246	.word		3b, __retl_efault, 4b, __retl_efault
247	.word		5b, __retl_efault, 6b, __retl_efault
248	.word		7b, __retl_efault, 8b, __retl_efault
249	.word		9b, __retl_efault, 10b, __retl_efault
250	.word		11b, __retl_efault, 12b, __retl_efault
251	.word		13b, __retl_efault, 14b, __retl_efault
252	.word		15b, __retl_efault, 16b, __retl_efault
253	.word		17b, __retl_efault, 18b, __retl_efault
254	.word		19b, __retl_efault, 20b, __retl_efault
255	.word		21b, __retl_efault, 22b, __retl_efault
256	.word		23b, __retl_efault, 24b, __retl_efault
257	.word		25b, __retl_efault, 26b, __retl_efault
258	.word		27b, __retl_efault, 28b, __retl_efault
259	.word		29b, __retl_efault, 30b, __retl_efault
260	.word		31b, __retl_efault, 32b, __retl_efault
261	.word		33b, __retl_efault, 34b, __retl_efault
262	.word		35b, __retl_efault, 36b, __retl_efault
263	.word		37b, __retl_efault, 38b, __retl_efault
264	.word		39b, __retl_efault, 40b, __retl_efault
265	.word		41b, __retl_efault, 42b, __retl_efault
266	.word		43b, __retl_efault, 44b, __retl_efault
267	.word		45b, __retl_efault, 46b, __retl_efault
268	.word		47b, __retl_efault, 48b, __retl_efault
269	.word		49b, __retl_efault, 50b, __retl_efault
270	.word		51b, __retl_efault, 52b, __retl_efault
271	.word		53b, __retl_efault, 54b, __retl_efault
272	.word		55b, __retl_efault, 56b, __retl_efault
273	.word		57b, __retl_efault, 58b, __retl_efault
274	.word		59b, __retl_efault, 60b, __retl_efault
275	.word		61b, __retl_efault, 62b, __retl_efault
276	.word		63b, __retl_efault, 64b, __retl_efault
277	.word		65b, __retl_efault, 66b, __retl_efault
278	.previous
279