2 * sys32.S: I-cache tricks for 32-bit compatibility layer simple
5 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
6 * Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz)
11 /* NOTE: call as jump breaks return stack, we have to avoid that */
15 #define SIGN1(STUB,SYSCALL,REG1) \
18 STUB: sethi %hi(SYSCALL), %g1; \
19 jmpl %g1 + %lo(SYSCALL), %g0; \
22 #define SIGN2(STUB,SYSCALL,REG1,REG2) \
25 STUB: sethi %hi(SYSCALL), %g1; \
27 jmpl %g1 + %lo(SYSCALL), %g0; \
30 #define SIGN3(STUB,SYSCALL,REG1,REG2,REG3) \
33 STUB: sra REG1, 0, REG1; \
34 sethi %hi(SYSCALL), %g1; \
36 jmpl %g1 + %lo(SYSCALL), %g0; \
39 SIGN1(sys32_readahead, compat_sys_readahead, %o0)
40 SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4)
41 SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5)
42 SIGN1(sys32_clock_nanosleep, compat_sys_clock_nanosleep, %o1)
43 SIGN1(sys32_timer_settime, compat_sys_timer_settime, %o1)
44 SIGN1(sys32_io_submit, compat_sys_io_submit, %o1)
45 SIGN1(sys32_mq_open, compat_sys_mq_open, %o1)
46 SIGN1(sys32_select, compat_sys_select, %o0)
47 SIGN1(sys32_futex, compat_sys_futex, %o1)
48 SIGN1(sys32_recvfrom, compat_sys_recvfrom, %o0)
49 SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0)
50 SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0)
54 sethi %hi(sys_mmap), %g1
55 jmpl %g1 + %lo(sys_mmap), %g0
59 .globl sys32_socketcall
60 sys32_socketcall: /* %o0=call, %o1=args */
67 sethi %hi(__socketcall_table_begin), %g2
68 or %g2, %lo(__socketcall_table_begin), %g2
76 __socketcall_table_begin:
78 /* Each entry is exactly 32 bytes. */
79 do_sys_socket: /* sys_socket(int, int, int) */
80 1: ldswa [%o1 + 0x0] %asi, %o0
81 sethi %hi(sys_socket), %g1
82 2: ldswa [%o1 + 0x8] %asi, %o2
83 jmpl %g1 + %lo(sys_socket), %g0
84 3: ldswa [%o1 + 0x4] %asi, %o1
88 do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */
89 4: ldswa [%o1 + 0x0] %asi, %o0
90 sethi %hi(sys_bind), %g1
91 5: ldswa [%o1 + 0x8] %asi, %o2
92 jmpl %g1 + %lo(sys_bind), %g0
93 6: lduwa [%o1 + 0x4] %asi, %o1
97 do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */
98 7: ldswa [%o1 + 0x0] %asi, %o0
99 sethi %hi(sys_connect), %g1
100 8: ldswa [%o1 + 0x8] %asi, %o2
101 jmpl %g1 + %lo(sys_connect), %g0
102 9: lduwa [%o1 + 0x4] %asi, %o1
106 do_sys_listen: /* sys_listen(int, int) */
107 10: ldswa [%o1 + 0x0] %asi, %o0
108 sethi %hi(sys_listen), %g1
109 jmpl %g1 + %lo(sys_listen), %g0
110 11: ldswa [%o1 + 0x4] %asi, %o1
115 do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */
116 12: ldswa [%o1 + 0x0] %asi, %o0
117 sethi %hi(sys_accept), %g1
118 13: lduwa [%o1 + 0x8] %asi, %o2
119 jmpl %g1 + %lo(sys_accept), %g0
120 14: lduwa [%o1 + 0x4] %asi, %o1
124 do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */
125 15: ldswa [%o1 + 0x0] %asi, %o0
126 sethi %hi(sys_getsockname), %g1
127 16: lduwa [%o1 + 0x8] %asi, %o2
128 jmpl %g1 + %lo(sys_getsockname), %g0
129 17: lduwa [%o1 + 0x4] %asi, %o1
133 do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */
134 18: ldswa [%o1 + 0x0] %asi, %o0
135 sethi %hi(sys_getpeername), %g1
136 19: lduwa [%o1 + 0x8] %asi, %o2
137 jmpl %g1 + %lo(sys_getpeername), %g0
138 20: lduwa [%o1 + 0x4] %asi, %o1
142 do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */
143 21: ldswa [%o1 + 0x0] %asi, %o0
144 sethi %hi(sys_socketpair), %g1
145 22: ldswa [%o1 + 0x8] %asi, %o2
146 23: lduwa [%o1 + 0xc] %asi, %o3
147 jmpl %g1 + %lo(sys_socketpair), %g0
148 24: ldswa [%o1 + 0x4] %asi, %o1
151 do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */
152 25: ldswa [%o1 + 0x0] %asi, %o0
153 sethi %hi(sys_send), %g1
154 26: lduwa [%o1 + 0x8] %asi, %o2
155 27: lduwa [%o1 + 0xc] %asi, %o3
156 jmpl %g1 + %lo(sys_send), %g0
157 28: lduwa [%o1 + 0x4] %asi, %o1
160 do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */
161 29: ldswa [%o1 + 0x0] %asi, %o0
162 sethi %hi(sys_recv), %g1
163 30: lduwa [%o1 + 0x8] %asi, %o2
164 31: lduwa [%o1 + 0xc] %asi, %o3
165 jmpl %g1 + %lo(sys_recv), %g0
166 32: lduwa [%o1 + 0x4] %asi, %o1
169 do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */
170 33: ldswa [%o1 + 0x0] %asi, %o0
171 sethi %hi(sys_sendto), %g1
172 34: lduwa [%o1 + 0x8] %asi, %o2
173 35: lduwa [%o1 + 0xc] %asi, %o3
174 36: lduwa [%o1 + 0x10] %asi, %o4
175 37: ldswa [%o1 + 0x14] %asi, %o5
176 jmpl %g1 + %lo(sys_sendto), %g0
177 38: lduwa [%o1 + 0x4] %asi, %o1
178 do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */
179 39: ldswa [%o1 + 0x0] %asi, %o0
180 sethi %hi(sys_recvfrom), %g1
181 40: lduwa [%o1 + 0x8] %asi, %o2
182 41: lduwa [%o1 + 0xc] %asi, %o3
183 42: lduwa [%o1 + 0x10] %asi, %o4
184 43: lduwa [%o1 + 0x14] %asi, %o5
185 jmpl %g1 + %lo(sys_recvfrom), %g0
186 44: lduwa [%o1 + 0x4] %asi, %o1
187 do_sys_shutdown: /* sys_shutdown(int, int) */
188 45: ldswa [%o1 + 0x0] %asi, %o0
189 sethi %hi(sys_shutdown), %g1
190 jmpl %g1 + %lo(sys_shutdown), %g0
191 46: ldswa [%o1 + 0x4] %asi, %o1
196 do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */
197 47: ldswa [%o1 + 0x0] %asi, %o0
198 sethi %hi(compat_sys_setsockopt), %g1
199 48: ldswa [%o1 + 0x8] %asi, %o2
200 49: lduwa [%o1 + 0xc] %asi, %o3
201 50: ldswa [%o1 + 0x10] %asi, %o4
202 jmpl %g1 + %lo(compat_sys_setsockopt), %g0
203 51: ldswa [%o1 + 0x4] %asi, %o1
205 do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */
206 52: ldswa [%o1 + 0x0] %asi, %o0
207 sethi %hi(compat_sys_getsockopt), %g1
208 53: ldswa [%o1 + 0x8] %asi, %o2
209 54: lduwa [%o1 + 0xc] %asi, %o3
210 55: lduwa [%o1 + 0x10] %asi, %o4
211 jmpl %g1 + %lo(compat_sys_getsockopt), %g0
212 56: ldswa [%o1 + 0x4] %asi, %o1
214 do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */
215 57: ldswa [%o1 + 0x0] %asi, %o0
216 sethi %hi(compat_sys_sendmsg), %g1
217 58: lduwa [%o1 + 0x8] %asi, %o2
218 jmpl %g1 + %lo(compat_sys_sendmsg), %g0
219 59: lduwa [%o1 + 0x4] %asi, %o1
223 do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */
224 60: ldswa [%o1 + 0x0] %asi, %o0
225 sethi %hi(compat_sys_recvmsg), %g1
226 61: lduwa [%o1 + 0x8] %asi, %o2
227 jmpl %g1 + %lo(compat_sys_recvmsg), %g0
228 62: lduwa [%o1 + 0x4] %asi, %o1
232 do_sys_accept4: /* sys_accept4(int, struct sockaddr *, int *, int) */
233 63: ldswa [%o1 + 0x0] %asi, %o0
234 sethi %hi(sys_accept4), %g1
235 64: lduwa [%o1 + 0x8] %asi, %o2
236 65: ldswa [%o1 + 0xc] %asi, %o3
237 jmpl %g1 + %lo(sys_accept4), %g0
238 66: lduwa [%o1 + 0x4] %asi, %o1
242 .section __ex_table,"a"
244 .word 1b, __retl_efault, 2b, __retl_efault
245 .word 3b, __retl_efault, 4b, __retl_efault
246 .word 5b, __retl_efault, 6b, __retl_efault
247 .word 7b, __retl_efault, 8b, __retl_efault
248 .word 9b, __retl_efault, 10b, __retl_efault
249 .word 11b, __retl_efault, 12b, __retl_efault
250 .word 13b, __retl_efault, 14b, __retl_efault
251 .word 15b, __retl_efault, 16b, __retl_efault
252 .word 17b, __retl_efault, 18b, __retl_efault
253 .word 19b, __retl_efault, 20b, __retl_efault
254 .word 21b, __retl_efault, 22b, __retl_efault
255 .word 23b, __retl_efault, 24b, __retl_efault
256 .word 25b, __retl_efault, 26b, __retl_efault
257 .word 27b, __retl_efault, 28b, __retl_efault
258 .word 29b, __retl_efault, 30b, __retl_efault
259 .word 31b, __retl_efault, 32b, __retl_efault
260 .word 33b, __retl_efault, 34b, __retl_efault
261 .word 35b, __retl_efault, 36b, __retl_efault
262 .word 37b, __retl_efault, 38b, __retl_efault
263 .word 39b, __retl_efault, 40b, __retl_efault
264 .word 41b, __retl_efault, 42b, __retl_efault
265 .word 43b, __retl_efault, 44b, __retl_efault
266 .word 45b, __retl_efault, 46b, __retl_efault
267 .word 47b, __retl_efault, 48b, __retl_efault
268 .word 49b, __retl_efault, 50b, __retl_efault
269 .word 51b, __retl_efault, 52b, __retl_efault
270 .word 53b, __retl_efault, 54b, __retl_efault
271 .word 55b, __retl_efault, 56b, __retl_efault
272 .word 57b, __retl_efault, 58b, __retl_efault
273 .word 59b, __retl_efault, 60b, __retl_efault
274 .word 61b, __retl_efault, 62b, __retl_efault
275 .word 63b, __retl_efault, 64b, __retl_efault
276 .word 65b, __retl_efault, 66b, __retl_efault