1 /* $Id: sys32.S,v 1.12 2000/03/24 04:17:37 davem Exp $
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)
9 #include <linux/config.h>
10 #include <asm/errno.h>
12 /* NOTE: call as jump breaks return stack, we have to avoid that */
16 #define SIGN1(STUB,SYSCALL,REG1) \
19 STUB: sethi %hi(SYSCALL), %g1; \
20 jmpl %g1 + %lo(SYSCALL), %g0; \
23 #define SIGN2(STUB,SYSCALL,REG1,REG2) \
26 STUB: sethi %hi(SYSCALL), %g1; \
28 jmpl %g1 + %lo(SYSCALL), %g0; \
31 #define SIGN3(STUB,SYSCALL,REG1,REG2,REG3) \
34 STUB: sra REG1, 0, REG1; \
35 sethi %hi(SYSCALL), %g1; \
37 jmpl %g1 + %lo(SYSCALL), %g0; \
40 #define SIGN4(STUB,SYSCALL,REG1,REG2,REG3,REG4) \
43 STUB: sra REG1, 0, REG1; \
44 sethi %hi(SYSCALL), %g1; \
47 jmpl %g1 + %lo(SYSCALL), %g0; \
50 SIGN1(sys32_exit, sparc_exit, %o0)
51 SIGN1(sys32_exit_group, sys_exit_group, %o0)
52 SIGN1(sys32_wait4, compat_sys_wait4, %o2)
53 SIGN1(sys32_creat, sys_creat, %o1)
54 SIGN1(sys32_mknod, sys_mknod, %o1)
55 SIGN1(sys32_perfctr, sys_perfctr, %o0)
56 SIGN1(sys32_umount, sys_umount, %o1)
57 SIGN1(sys32_signal, sys_signal, %o0)
58 SIGN1(sys32_access, sys_access, %o1)
59 SIGN1(sys32_msync, sys_msync, %o2)
60 SIGN2(sys32_reboot, sys_reboot, %o0, %o1)
61 SIGN1(sys32_setitimer, compat_sys_setitimer, %o0)
62 SIGN1(sys32_getitimer, compat_sys_getitimer, %o0)
63 SIGN1(sys32_sethostname, sys_sethostname, %o1)
64 SIGN1(sys32_swapon, sys_swapon, %o1)
65 SIGN1(sys32_sigaction, compat_sys_sigaction, %o0)
66 SIGN1(sys32_rt_sigaction, compat_sys_rt_sigaction, %o0)
67 SIGN1(sys32_sigprocmask, compat_sys_sigprocmask, %o0)
68 SIGN1(sys32_rt_sigprocmask, compat_sys_rt_sigprocmask, %o0)
69 SIGN2(sys32_rt_sigqueueinfo, compat_sys_rt_sigqueueinfo, %o0, %o1)
70 SIGN1(sys32_getrusage, compat_sys_getrusage, %o0)
71 SIGN1(sys32_setxattr, sys_setxattr, %o4)
72 SIGN1(sys32_lsetxattr, sys_lsetxattr, %o4)
73 SIGN1(sys32_fsetxattr, sys_fsetxattr, %o4)
74 SIGN1(sys32_fgetxattr, sys_fgetxattr, %o0)
75 SIGN1(sys32_flistxattr, sys_flistxattr, %o0)
76 SIGN1(sys32_fremovexattr, sys_fremovexattr, %o0)
77 SIGN2(sys32_tkill, sys_tkill, %o0, %o1)
78 SIGN1(sys32_epoll_create, sys_epoll_create, %o0)
79 SIGN3(sys32_epoll_ctl, sys_epoll_ctl, %o0, %o1, %o2)
80 SIGN3(sys32_epoll_wait, sys_epoll_wait, %o0, %o2, %o3)
81 SIGN1(sys32_readahead, compat_sys_readahead, %o0)
82 SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4)
83 SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5)
84 SIGN2(sys32_bdflush, sys_bdflush, %o0, %o1)
85 SIGN1(sys32_mlockall, sys_mlockall, %o0)
86 SIGN1(sys32_nfsservctl, compat_sys_nfsservctl, %o0)
87 SIGN1(sys32_clock_settime, compat_sys_clock_settime, %o1)
88 SIGN1(sys32_clock_nanosleep, compat_sys_clock_nanosleep, %o1)
89 SIGN1(sys32_timer_settime, compat_sys_timer_settime, %o1)
90 SIGN1(sys32_io_submit, compat_sys_io_submit, %o1)
91 SIGN1(sys32_mq_open, compat_sys_mq_open, %o1)
92 SIGN1(sys32_select, compat_sys_select, %o0)
93 SIGN1(sys32_mkdir, sys_mkdir, %o1)
94 SIGN3(sys32_futex, compat_sys_futex, %o1, %o2, %o5)
95 SIGN1(sys32_sysfs, compat_sys_sysfs, %o0)
96 SIGN3(sys32_ipc, compat_sys_ipc, %o1, %o2, %o3)
97 SIGN2(sys32_sendfile, compat_sys_sendfile, %o0, %o1)
98 SIGN2(sys32_sendfile64, compat_sys_sendfile64, %o0, %o1)
99 SIGN1(sys32_prctl, sys_prctl, %o0)
100 SIGN1(sys32_sched_rr_get_interval, compat_sys_sched_rr_get_interval, %o0)
101 SIGN2(sys32_waitpid, sys_waitpid, %o0, %o2)
102 SIGN1(sys32_getgroups, sys_getgroups, %o0)
103 SIGN1(sys32_getpgid, sys_getpgid, %o0)
104 SIGN2(sys32_getpriority, sys_getpriority, %o0, %o1)
105 SIGN1(sys32_getsid, sys_getsid, %o0)
106 SIGN2(sys32_kill, sys_kill, %o0, %o1)
107 SIGN1(sys32_nice, sys_nice, %o0)
108 SIGN1(sys32_lseek, sys_lseek, %o1)
109 SIGN2(sys32_open, sparc32_open, %o1, %o2)
110 SIGN1(sys32_readlink, sys_readlink, %o2)
111 SIGN1(sys32_sched_get_priority_max, sys_sched_get_priority_max, %o0)
112 SIGN1(sys32_sched_get_priority_min, sys_sched_get_priority_min, %o0)
113 SIGN1(sys32_sched_getparam, sys_sched_getparam, %o0)
114 SIGN1(sys32_sched_getscheduler, sys_sched_getscheduler, %o0)
115 SIGN1(sys32_sched_setparam, sys_sched_setparam, %o0)
116 SIGN2(sys32_sched_setscheduler, sys_sched_setscheduler, %o0, %o1)
117 SIGN1(sys32_getdomainname, sys_getdomainname, %o1)
118 SIGN1(sys32_setdomainname, sys_setdomainname, %o1)
119 SIGN1(sys32_setgroups, sys_setgroups, %o0)
120 SIGN2(sys32_setpgid, sys_setpgid, %o0, %o1)
121 SIGN3(sys32_setpriority, sys_setpriority, %o0, %o1, %o2)
122 SIGN1(sys32_ssetmask, sys_ssetmask, %o0)
123 SIGN2(sys32_syslog, sys_syslog, %o0, %o2)
124 SIGN1(sys32_umask, sys_umask, %o0)
125 SIGN3(sys32_tgkill, sys_tgkill, %o0, %o1, %o2)
126 SIGN1(sys32_sendto, sys_sendto, %o0)
127 SIGN1(sys32_recvfrom, sys_recvfrom, %o0)
128 SIGN3(sys32_socket, sys_socket, %o0, %o1, %o2)
129 SIGN2(sys32_connect, sys_connect, %o0, %o2)
130 SIGN2(sys32_bind, sys_bind, %o0, %o2)
131 SIGN2(sys32_listen, sys_listen, %o0, %o1)
132 SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0)
133 SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0)
134 SIGN2(sys32_shutdown, sys_shutdown, %o0, %o1)
135 SIGN3(sys32_socketpair, sys_socketpair, %o0, %o1, %o2)
136 SIGN1(sys32_getpeername, sys_getpeername, %o0)
137 SIGN1(sys32_getsockname, sys_getsockname, %o0)
138 SIGN2(sys32_ioprio_get, sys_ioprio_get, %o0, %o1)
139 SIGN3(sys32_ioprio_set, sys_ioprio_set, %o0, %o1, %o2)
143 sethi %hi(sys_mmap), %g1
144 jmpl %g1 + %lo(sys_mmap), %g0
148 .globl sys32_socketcall
149 sys32_socketcall: /* %o0=call, %o1=args */
151 bl,pn %xcc, do_einval
153 bg,pn %xcc, do_einval
156 sethi %hi(__socketcall_table_begin), %g2
157 or %g2, %lo(__socketcall_table_begin), %g2
162 __socketcall_table_begin:
164 /* Each entry is exactly 32 bytes. */
165 do_sys_socket: /* sys_socket(int, int, int) */
166 1: ldswa [%o1 + 0x0] %asi, %o0
167 sethi %hi(sys_socket), %g1
168 2: ldswa [%o1 + 0x8] %asi, %o2
169 jmpl %g1 + %lo(sys_socket), %g0
170 3: ldswa [%o1 + 0x4] %asi, %o1
174 do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */
175 4: ldswa [%o1 + 0x0] %asi, %o0
176 sethi %hi(sys_bind), %g1
177 5: ldswa [%o1 + 0x8] %asi, %o2
178 jmpl %g1 + %lo(sys_bind), %g0
179 6: lduwa [%o1 + 0x4] %asi, %o1
183 do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */
184 7: ldswa [%o1 + 0x0] %asi, %o0
185 sethi %hi(sys_connect), %g1
186 8: ldswa [%o1 + 0x8] %asi, %o2
187 jmpl %g1 + %lo(sys_connect), %g0
188 9: lduwa [%o1 + 0x4] %asi, %o1
192 do_sys_listen: /* sys_listen(int, int) */
193 10: ldswa [%o1 + 0x0] %asi, %o0
194 sethi %hi(sys_listen), %g1
195 jmpl %g1 + %lo(sys_listen), %g0
196 11: ldswa [%o1 + 0x4] %asi, %o1
201 do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */
202 12: ldswa [%o1 + 0x0] %asi, %o0
203 sethi %hi(sys_accept), %g1
204 13: lduwa [%o1 + 0x8] %asi, %o2
205 jmpl %g1 + %lo(sys_accept), %g0
206 14: lduwa [%o1 + 0x4] %asi, %o1
210 do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */
211 15: ldswa [%o1 + 0x0] %asi, %o0
212 sethi %hi(sys_getsockname), %g1
213 16: lduwa [%o1 + 0x8] %asi, %o2
214 jmpl %g1 + %lo(sys_getsockname), %g0
215 17: lduwa [%o1 + 0x4] %asi, %o1
219 do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */
220 18: ldswa [%o1 + 0x0] %asi, %o0
221 sethi %hi(sys_getpeername), %g1
222 19: lduwa [%o1 + 0x8] %asi, %o2
223 jmpl %g1 + %lo(sys_getpeername), %g0
224 20: lduwa [%o1 + 0x4] %asi, %o1
228 do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */
229 21: ldswa [%o1 + 0x0] %asi, %o0
230 sethi %hi(sys_socketpair), %g1
231 22: ldswa [%o1 + 0x8] %asi, %o2
232 23: lduwa [%o1 + 0xc] %asi, %o3
233 jmpl %g1 + %lo(sys_socketpair), %g0
234 24: ldswa [%o1 + 0x4] %asi, %o1
237 do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */
238 25: ldswa [%o1 + 0x0] %asi, %o0
239 sethi %hi(sys_send), %g1
240 26: lduwa [%o1 + 0x8] %asi, %o2
241 27: lduwa [%o1 + 0xc] %asi, %o3
242 jmpl %g1 + %lo(sys_send), %g0
243 28: lduwa [%o1 + 0x4] %asi, %o1
246 do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */
247 29: ldswa [%o1 + 0x0] %asi, %o0
248 sethi %hi(sys_recv), %g1
249 30: lduwa [%o1 + 0x8] %asi, %o2
250 31: lduwa [%o1 + 0xc] %asi, %o3
251 jmpl %g1 + %lo(sys_recv), %g0
252 32: lduwa [%o1 + 0x4] %asi, %o1
255 do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */
256 33: ldswa [%o1 + 0x0] %asi, %o0
257 sethi %hi(sys_sendto), %g1
258 34: lduwa [%o1 + 0x8] %asi, %o2
259 35: lduwa [%o1 + 0xc] %asi, %o3
260 36: lduwa [%o1 + 0x10] %asi, %o4
261 37: ldswa [%o1 + 0x14] %asi, %o5
262 jmpl %g1 + %lo(sys_sendto), %g0
263 38: lduwa [%o1 + 0x4] %asi, %o1
264 do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */
265 39: ldswa [%o1 + 0x0] %asi, %o0
266 sethi %hi(sys_recvfrom), %g1
267 40: lduwa [%o1 + 0x8] %asi, %o2
268 41: lduwa [%o1 + 0xc] %asi, %o3
269 42: lduwa [%o1 + 0x10] %asi, %o4
270 43: lduwa [%o1 + 0x14] %asi, %o5
271 jmpl %g1 + %lo(sys_recvfrom), %g0
272 44: lduwa [%o1 + 0x4] %asi, %o1
273 do_sys_shutdown: /* sys_shutdown(int, int) */
274 45: ldswa [%o1 + 0x0] %asi, %o0
275 sethi %hi(sys_shutdown), %g1
276 jmpl %g1 + %lo(sys_shutdown), %g0
277 46: ldswa [%o1 + 0x4] %asi, %o1
282 do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */
283 47: ldswa [%o1 + 0x0] %asi, %o0
284 sethi %hi(compat_sys_setsockopt), %g1
285 48: ldswa [%o1 + 0x8] %asi, %o2
286 49: lduwa [%o1 + 0xc] %asi, %o3
287 50: ldswa [%o1 + 0x10] %asi, %o4
288 jmpl %g1 + %lo(compat_sys_setsockopt), %g0
289 51: ldswa [%o1 + 0x4] %asi, %o1
291 do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */
292 52: ldswa [%o1 + 0x0] %asi, %o0
293 sethi %hi(compat_sys_getsockopt), %g1
294 53: ldswa [%o1 + 0x8] %asi, %o2
295 54: lduwa [%o1 + 0xc] %asi, %o3
296 55: lduwa [%o1 + 0x10] %asi, %o4
297 jmpl %g1 + %lo(compat_sys_getsockopt), %g0
298 56: ldswa [%o1 + 0x4] %asi, %o1
300 do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */
301 57: ldswa [%o1 + 0x0] %asi, %o0
302 sethi %hi(compat_sys_sendmsg), %g1
303 58: lduwa [%o1 + 0x8] %asi, %o2
304 jmpl %g1 + %lo(compat_sys_sendmsg), %g0
305 59: lduwa [%o1 + 0x4] %asi, %o1
309 do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */
310 60: ldswa [%o1 + 0x0] %asi, %o0
311 sethi %hi(compat_sys_recvmsg), %g1
312 61: lduwa [%o1 + 0x8] %asi, %o2
313 jmpl %g1 + %lo(compat_sys_recvmsg), %g0
314 62: lduwa [%o1 + 0x4] %asi, %o1
328 .word 1b, do_efault, 2b, do_efault, 3b, do_efault, 4b, do_efault
329 .word 5b, do_efault, 6b, do_efault, 7b, do_efault, 8b, do_efault
330 .word 9b, do_efault, 10b, do_efault, 11b, do_efault, 12b, do_efault
331 .word 13b, do_efault, 14b, do_efault, 15b, do_efault, 16b, do_efault
332 .word 17b, do_efault, 18b, do_efault, 19b, do_efault, 20b, do_efault
333 .word 21b, do_efault, 22b, do_efault, 23b, do_efault, 24b, do_efault
334 .word 25b, do_efault, 26b, do_efault, 27b, do_efault, 28b, do_efault
335 .word 29b, do_efault, 30b, do_efault, 31b, do_efault, 32b, do_efault
336 .word 33b, do_efault, 34b, do_efault, 35b, do_efault, 36b, do_efault
337 .word 37b, do_efault, 38b, do_efault, 39b, do_efault, 40b, do_efault
338 .word 41b, do_efault, 42b, do_efault, 43b, do_efault, 44b, do_efault
339 .word 45b, do_efault, 46b, do_efault, 47b, do_efault, 48b, do_efault
340 .word 49b, do_efault, 50b, do_efault, 51b, do_efault, 52b, do_efault
341 .word 53b, do_efault, 54b, do_efault, 55b, do_efault, 56b, do_efault
342 .word 57b, do_efault, 58b, do_efault, 59b, do_efault, 60b, do_efault
343 .word 61b, do_efault, 62b, do_efault