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_getrusage, compat_sys_getrusage, %o0)
40 SIGN1(sys32_readahead, compat_sys_readahead, %o0)
41 SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4)
42 SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5)
43 SIGN1(sys32_clock_nanosleep, compat_sys_clock_nanosleep, %o1)
44 SIGN1(sys32_timer_settime, compat_sys_timer_settime, %o1)
45 SIGN1(sys32_io_submit, compat_sys_io_submit, %o1)
46 SIGN1(sys32_mq_open, compat_sys_mq_open, %o1)
47 SIGN1(sys32_select, compat_sys_select, %o0)
48 SIGN3(sys32_futex, compat_sys_futex, %o1, %o2, %o5)
49 SIGN2(sys32_sendfile, compat_sys_sendfile, %o0, %o1)
50 SIGN1(sys32_recvfrom, compat_sys_recvfrom, %o0)
51 SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0)
52 SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0)
53 SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5)
54 SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0)
58 sethi %hi(sys_mmap), %g1
59 jmpl %g1 + %lo(sys_mmap), %g0
63 .globl sys32_socketcall
64 sys32_socketcall: /* %o0=call, %o1=args */
71 sethi %hi(__socketcall_table_begin), %g2
72 or %g2, %lo(__socketcall_table_begin), %g2
80 __socketcall_table_begin:
82 /* Each entry is exactly 32 bytes. */
83 do_sys_socket: /* sys_socket(int, int, int) */
84 1: ldswa [%o1 + 0x0] %asi, %o0
85 sethi %hi(sys_socket), %g1
86 2: ldswa [%o1 + 0x8] %asi, %o2
87 jmpl %g1 + %lo(sys_socket), %g0
88 3: ldswa [%o1 + 0x4] %asi, %o1
92 do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */
93 4: ldswa [%o1 + 0x0] %asi, %o0
94 sethi %hi(sys_bind), %g1
95 5: ldswa [%o1 + 0x8] %asi, %o2
96 jmpl %g1 + %lo(sys_bind), %g0
97 6: lduwa [%o1 + 0x4] %asi, %o1
101 do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */
102 7: ldswa [%o1 + 0x0] %asi, %o0
103 sethi %hi(sys_connect), %g1
104 8: ldswa [%o1 + 0x8] %asi, %o2
105 jmpl %g1 + %lo(sys_connect), %g0
106 9: lduwa [%o1 + 0x4] %asi, %o1
110 do_sys_listen: /* sys_listen(int, int) */
111 10: ldswa [%o1 + 0x0] %asi, %o0
112 sethi %hi(sys_listen), %g1
113 jmpl %g1 + %lo(sys_listen), %g0
114 11: ldswa [%o1 + 0x4] %asi, %o1
119 do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */
120 12: ldswa [%o1 + 0x0] %asi, %o0
121 sethi %hi(sys_accept), %g1
122 13: lduwa [%o1 + 0x8] %asi, %o2
123 jmpl %g1 + %lo(sys_accept), %g0
124 14: lduwa [%o1 + 0x4] %asi, %o1
128 do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */
129 15: ldswa [%o1 + 0x0] %asi, %o0
130 sethi %hi(sys_getsockname), %g1
131 16: lduwa [%o1 + 0x8] %asi, %o2
132 jmpl %g1 + %lo(sys_getsockname), %g0
133 17: lduwa [%o1 + 0x4] %asi, %o1
137 do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */
138 18: ldswa [%o1 + 0x0] %asi, %o0
139 sethi %hi(sys_getpeername), %g1
140 19: lduwa [%o1 + 0x8] %asi, %o2
141 jmpl %g1 + %lo(sys_getpeername), %g0
142 20: lduwa [%o1 + 0x4] %asi, %o1
146 do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */
147 21: ldswa [%o1 + 0x0] %asi, %o0
148 sethi %hi(sys_socketpair), %g1
149 22: ldswa [%o1 + 0x8] %asi, %o2
150 23: lduwa [%o1 + 0xc] %asi, %o3
151 jmpl %g1 + %lo(sys_socketpair), %g0
152 24: ldswa [%o1 + 0x4] %asi, %o1
155 do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */
156 25: ldswa [%o1 + 0x0] %asi, %o0
157 sethi %hi(sys_send), %g1
158 26: lduwa [%o1 + 0x8] %asi, %o2
159 27: lduwa [%o1 + 0xc] %asi, %o3
160 jmpl %g1 + %lo(sys_send), %g0
161 28: lduwa [%o1 + 0x4] %asi, %o1
164 do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */
165 29: ldswa [%o1 + 0x0] %asi, %o0
166 sethi %hi(sys_recv), %g1
167 30: lduwa [%o1 + 0x8] %asi, %o2
168 31: lduwa [%o1 + 0xc] %asi, %o3
169 jmpl %g1 + %lo(sys_recv), %g0
170 32: lduwa [%o1 + 0x4] %asi, %o1
173 do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */
174 33: ldswa [%o1 + 0x0] %asi, %o0
175 sethi %hi(sys_sendto), %g1
176 34: lduwa [%o1 + 0x8] %asi, %o2
177 35: lduwa [%o1 + 0xc] %asi, %o3
178 36: lduwa [%o1 + 0x10] %asi, %o4
179 37: ldswa [%o1 + 0x14] %asi, %o5
180 jmpl %g1 + %lo(sys_sendto), %g0
181 38: lduwa [%o1 + 0x4] %asi, %o1
182 do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */
183 39: ldswa [%o1 + 0x0] %asi, %o0
184 sethi %hi(sys_recvfrom), %g1
185 40: lduwa [%o1 + 0x8] %asi, %o2
186 41: lduwa [%o1 + 0xc] %asi, %o3
187 42: lduwa [%o1 + 0x10] %asi, %o4
188 43: lduwa [%o1 + 0x14] %asi, %o5
189 jmpl %g1 + %lo(sys_recvfrom), %g0
190 44: lduwa [%o1 + 0x4] %asi, %o1
191 do_sys_shutdown: /* sys_shutdown(int, int) */
192 45: ldswa [%o1 + 0x0] %asi, %o0
193 sethi %hi(sys_shutdown), %g1
194 jmpl %g1 + %lo(sys_shutdown), %g0
195 46: ldswa [%o1 + 0x4] %asi, %o1
200 do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */
201 47: ldswa [%o1 + 0x0] %asi, %o0
202 sethi %hi(compat_sys_setsockopt), %g1
203 48: ldswa [%o1 + 0x8] %asi, %o2
204 49: lduwa [%o1 + 0xc] %asi, %o3
205 50: ldswa [%o1 + 0x10] %asi, %o4
206 jmpl %g1 + %lo(compat_sys_setsockopt), %g0
207 51: ldswa [%o1 + 0x4] %asi, %o1
209 do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */
210 52: ldswa [%o1 + 0x0] %asi, %o0
211 sethi %hi(compat_sys_getsockopt), %g1
212 53: ldswa [%o1 + 0x8] %asi, %o2
213 54: lduwa [%o1 + 0xc] %asi, %o3
214 55: lduwa [%o1 + 0x10] %asi, %o4
215 jmpl %g1 + %lo(compat_sys_getsockopt), %g0
216 56: ldswa [%o1 + 0x4] %asi, %o1
218 do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */
219 57: ldswa [%o1 + 0x0] %asi, %o0
220 sethi %hi(compat_sys_sendmsg), %g1
221 58: lduwa [%o1 + 0x8] %asi, %o2
222 jmpl %g1 + %lo(compat_sys_sendmsg), %g0
223 59: lduwa [%o1 + 0x4] %asi, %o1
227 do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */
228 60: ldswa [%o1 + 0x0] %asi, %o0
229 sethi %hi(compat_sys_recvmsg), %g1
230 61: lduwa [%o1 + 0x8] %asi, %o2
231 jmpl %g1 + %lo(compat_sys_recvmsg), %g0
232 62: lduwa [%o1 + 0x4] %asi, %o1
236 do_sys_accept4: /* sys_accept4(int, struct sockaddr *, int *, int) */
237 63: ldswa [%o1 + 0x0] %asi, %o0
238 sethi %hi(sys_accept4), %g1
239 64: lduwa [%o1 + 0x8] %asi, %o2
240 65: ldswa [%o1 + 0xc] %asi, %o3
241 jmpl %g1 + %lo(sys_accept4), %g0
242 66: lduwa [%o1 + 0x4] %asi, %o1
246 .globl sys32_fanotify_mark
248 sethi %hi(sys_fanotify_mark), %g1
252 jmpl %g1 + %lo(sys_fanotify_mark), %g0
255 .section __ex_table,"a"
257 .word 1b, __retl_efault, 2b, __retl_efault
258 .word 3b, __retl_efault, 4b, __retl_efault
259 .word 5b, __retl_efault, 6b, __retl_efault
260 .word 7b, __retl_efault, 8b, __retl_efault
261 .word 9b, __retl_efault, 10b, __retl_efault
262 .word 11b, __retl_efault, 12b, __retl_efault
263 .word 13b, __retl_efault, 14b, __retl_efault
264 .word 15b, __retl_efault, 16b, __retl_efault
265 .word 17b, __retl_efault, 18b, __retl_efault
266 .word 19b, __retl_efault, 20b, __retl_efault
267 .word 21b, __retl_efault, 22b, __retl_efault
268 .word 23b, __retl_efault, 24b, __retl_efault
269 .word 25b, __retl_efault, 26b, __retl_efault
270 .word 27b, __retl_efault, 28b, __retl_efault
271 .word 29b, __retl_efault, 30b, __retl_efault
272 .word 31b, __retl_efault, 32b, __retl_efault
273 .word 33b, __retl_efault, 34b, __retl_efault
274 .word 35b, __retl_efault, 36b, __retl_efault
275 .word 37b, __retl_efault, 38b, __retl_efault
276 .word 39b, __retl_efault, 40b, __retl_efault
277 .word 41b, __retl_efault, 42b, __retl_efault
278 .word 43b, __retl_efault, 44b, __retl_efault
279 .word 45b, __retl_efault, 46b, __retl_efault
280 .word 47b, __retl_efault, 48b, __retl_efault
281 .word 49b, __retl_efault, 50b, __retl_efault
282 .word 51b, __retl_efault, 52b, __retl_efault
283 .word 53b, __retl_efault, 54b, __retl_efault
284 .word 55b, __retl_efault, 56b, __retl_efault
285 .word 57b, __retl_efault, 58b, __retl_efault
286 .word 59b, __retl_efault, 60b, __retl_efault
287 .word 61b, __retl_efault, 62b, __retl_efault
288 .word 63b, __retl_efault, 64b, __retl_efault
289 .word 65b, __retl_efault, 66b, __retl_efault