| Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame^] | 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 |
| 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 <linux/config.h> |
| 10 | #include <asm/errno.h> |
| 11 | |
| 12 | /* NOTE: call as jump breaks return stack, we have to avoid that */ |
| 13 | |
| 14 | .text |
| 15 | |
| 16 | #define SIGN1(STUB,SYSCALL,REG1) \ |
| 17 | .align 32; \ |
| 18 | .globl STUB; \ |
| 19 | STUB: sethi %hi(SYSCALL), %g1; \ |
| 20 | jmpl %g1 + %lo(SYSCALL), %g0; \ |
| 21 | sra REG1, 0, REG1 |
| 22 | |
| 23 | #define SIGN2(STUB,SYSCALL,REG1,REG2) \ |
| 24 | .align 32; \ |
| 25 | .globl STUB; \ |
| 26 | STUB: sethi %hi(SYSCALL), %g1; \ |
| 27 | sra REG1, 0, REG1; \ |
| 28 | jmpl %g1 + %lo(SYSCALL), %g0; \ |
| 29 | sra REG2, 0, REG2 |
| 30 | |
| 31 | #define SIGN3(STUB,SYSCALL,REG1,REG2,REG3) \ |
| 32 | .align 32; \ |
| 33 | .globl STUB; \ |
| 34 | STUB: sra REG1, 0, REG1; \ |
| 35 | sethi %hi(SYSCALL), %g1; \ |
| 36 | sra REG2, 0, REG2; \ |
| 37 | jmpl %g1 + %lo(SYSCALL), %g0; \ |
| 38 | sra REG3, 0, REG3 |
| 39 | |
| 40 | #define SIGN4(STUB,SYSCALL,REG1,REG2,REG3,REG4) \ |
| 41 | .align 32; \ |
| 42 | .globl STUB; \ |
| 43 | STUB: sra REG1, 0, REG1; \ |
| 44 | sethi %hi(SYSCALL), %g1; \ |
| 45 | sra REG2, 0, REG2; \ |
| 46 | sra REG3, 0, REG3; \ |
| 47 | jmpl %g1 + %lo(SYSCALL), %g0; \ |
| 48 | sra REG4, 0, REG4 |
| 49 | |
| 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 | |
| 139 | .globl sys32_mmap2 |
| 140 | sys32_mmap2: |
| 141 | sethi %hi(sys_mmap), %g1 |
| 142 | jmpl %g1 + %lo(sys_mmap), %g0 |
| 143 | sllx %o5, 12, %o5 |
| 144 | |
| 145 | .align 32 |
| 146 | .globl sys32_socketcall |
| 147 | sys32_socketcall: /* %o0=call, %o1=args */ |
| 148 | cmp %o0, 1 |
| 149 | bl,pn %xcc, do_einval |
| 150 | cmp %o0, 17 |
| 151 | bg,pn %xcc, do_einval |
| 152 | sub %o0, 1, %o0 |
| 153 | sllx %o0, 5, %o0 |
| 154 | sethi %hi(__socketcall_table_begin), %g2 |
| 155 | or %g2, %lo(__socketcall_table_begin), %g2 |
| 156 | jmpl %g2 + %o0, %g0 |
| 157 | nop |
| 158 | |
| 159 | /* Each entry is exactly 32 bytes. */ |
| 160 | .align 32 |
| 161 | __socketcall_table_begin: |
| 162 | do_sys_socket: /* sys_socket(int, int, int) */ |
| 163 | ldswa [%o1 + 0x0] %asi, %o0 |
| 164 | sethi %hi(sys_socket), %g1 |
| 165 | ldswa [%o1 + 0x8] %asi, %o2 |
| 166 | jmpl %g1 + %lo(sys_socket), %g0 |
| 167 | ldswa [%o1 + 0x4] %asi, %o1 |
| 168 | nop |
| 169 | nop |
| 170 | nop |
| 171 | do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */ |
| 172 | ldswa [%o1 + 0x0] %asi, %o0 |
| 173 | sethi %hi(sys_bind), %g1 |
| 174 | ldswa [%o1 + 0x8] %asi, %o2 |
| 175 | jmpl %g1 + %lo(sys_bind), %g0 |
| 176 | lduwa [%o1 + 0x4] %asi, %o1 |
| 177 | nop |
| 178 | nop |
| 179 | nop |
| 180 | do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */ |
| 181 | ldswa [%o1 + 0x0] %asi, %o0 |
| 182 | sethi %hi(sys_connect), %g1 |
| 183 | ldswa [%o1 + 0x8] %asi, %o2 |
| 184 | jmpl %g1 + %lo(sys_connect), %g0 |
| 185 | lduwa [%o1 + 0x4] %asi, %o1 |
| 186 | nop |
| 187 | nop |
| 188 | nop |
| 189 | do_sys_listen: /* sys_listen(int, int) */ |
| 190 | ldswa [%o1 + 0x0] %asi, %o0 |
| 191 | sethi %hi(sys_listen), %g1 |
| 192 | jmpl %g1 + %lo(sys_listen), %g0 |
| 193 | ldswa [%o1 + 0x4] %asi, %o1 |
| 194 | nop |
| 195 | nop |
| 196 | nop |
| 197 | nop |
| 198 | do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */ |
| 199 | ldswa [%o1 + 0x0] %asi, %o0 |
| 200 | sethi %hi(sys_accept), %g1 |
| 201 | lduwa [%o1 + 0x8] %asi, %o2 |
| 202 | jmpl %g1 + %lo(sys_accept), %g0 |
| 203 | lduwa [%o1 + 0x4] %asi, %o1 |
| 204 | nop |
| 205 | nop |
| 206 | nop |
| 207 | do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */ |
| 208 | ldswa [%o1 + 0x0] %asi, %o0 |
| 209 | sethi %hi(sys_getsockname), %g1 |
| 210 | lduwa [%o1 + 0x8] %asi, %o2 |
| 211 | jmpl %g1 + %lo(sys_getsockname), %g0 |
| 212 | lduwa [%o1 + 0x4] %asi, %o1 |
| 213 | nop |
| 214 | nop |
| 215 | nop |
| 216 | do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */ |
| 217 | ldswa [%o1 + 0x0] %asi, %o0 |
| 218 | sethi %hi(sys_getpeername), %g1 |
| 219 | lduwa [%o1 + 0x8] %asi, %o2 |
| 220 | jmpl %g1 + %lo(sys_getpeername), %g0 |
| 221 | lduwa [%o1 + 0x4] %asi, %o1 |
| 222 | nop |
| 223 | nop |
| 224 | nop |
| 225 | do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */ |
| 226 | ldswa [%o1 + 0x0] %asi, %o0 |
| 227 | sethi %hi(sys_socketpair), %g1 |
| 228 | ldswa [%o1 + 0x8] %asi, %o2 |
| 229 | lduwa [%o1 + 0xc] %asi, %o3 |
| 230 | jmpl %g1 + %lo(sys_socketpair), %g0 |
| 231 | ldswa [%o1 + 0x4] %asi, %o1 |
| 232 | nop |
| 233 | nop |
| 234 | do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */ |
| 235 | ldswa [%o1 + 0x0] %asi, %o0 |
| 236 | sethi %hi(sys_send), %g1 |
| 237 | lduwa [%o1 + 0x8] %asi, %o2 |
| 238 | lduwa [%o1 + 0xc] %asi, %o3 |
| 239 | jmpl %g1 + %lo(sys_send), %g0 |
| 240 | lduwa [%o1 + 0x4] %asi, %o1 |
| 241 | nop |
| 242 | nop |
| 243 | do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */ |
| 244 | ldswa [%o1 + 0x0] %asi, %o0 |
| 245 | sethi %hi(sys_recv), %g1 |
| 246 | lduwa [%o1 + 0x8] %asi, %o2 |
| 247 | lduwa [%o1 + 0xc] %asi, %o3 |
| 248 | jmpl %g1 + %lo(sys_recv), %g0 |
| 249 | lduwa [%o1 + 0x4] %asi, %o1 |
| 250 | nop |
| 251 | nop |
| 252 | do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */ |
| 253 | ldswa [%o1 + 0x0] %asi, %o0 |
| 254 | sethi %hi(sys_sendto), %g1 |
| 255 | lduwa [%o1 + 0x8] %asi, %o2 |
| 256 | lduwa [%o1 + 0xc] %asi, %o3 |
| 257 | lduwa [%o1 + 0x10] %asi, %o4 |
| 258 | ldswa [%o1 + 0x14] %asi, %o5 |
| 259 | jmpl %g1 + %lo(sys_sendto), %g0 |
| 260 | lduwa [%o1 + 0x4] %asi, %o1 |
| 261 | do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */ |
| 262 | ldswa [%o1 + 0x0] %asi, %o0 |
| 263 | sethi %hi(sys_recvfrom), %g1 |
| 264 | lduwa [%o1 + 0x8] %asi, %o2 |
| 265 | lduwa [%o1 + 0xc] %asi, %o3 |
| 266 | lduwa [%o1 + 0x10] %asi, %o4 |
| 267 | lduwa [%o1 + 0x14] %asi, %o5 |
| 268 | jmpl %g1 + %lo(sys_recvfrom), %g0 |
| 269 | lduwa [%o1 + 0x4] %asi, %o1 |
| 270 | do_sys_shutdown: /* sys_shutdown(int, int) */ |
| 271 | ldswa [%o1 + 0x0] %asi, %o0 |
| 272 | sethi %hi(sys_shutdown), %g1 |
| 273 | jmpl %g1 + %lo(sys_shutdown), %g0 |
| 274 | ldswa [%o1 + 0x4] %asi, %o1 |
| 275 | nop |
| 276 | nop |
| 277 | nop |
| 278 | nop |
| 279 | do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */ |
| 280 | ldswa [%o1 + 0x0] %asi, %o0 |
| 281 | sethi %hi(compat_sys_setsockopt), %g1 |
| 282 | ldswa [%o1 + 0x8] %asi, %o2 |
| 283 | lduwa [%o1 + 0xc] %asi, %o3 |
| 284 | ldswa [%o1 + 0x10] %asi, %o4 |
| 285 | jmpl %g1 + %lo(compat_sys_setsockopt), %g0 |
| 286 | ldswa [%o1 + 0x4] %asi, %o1 |
| 287 | nop |
| 288 | do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */ |
| 289 | ldswa [%o1 + 0x0] %asi, %o0 |
| 290 | sethi %hi(compat_sys_getsockopt), %g1 |
| 291 | ldswa [%o1 + 0x8] %asi, %o2 |
| 292 | lduwa [%o1 + 0xc] %asi, %o3 |
| 293 | lduwa [%o1 + 0x10] %asi, %o4 |
| 294 | jmpl %g1 + %lo(compat_sys_getsockopt), %g0 |
| 295 | ldswa [%o1 + 0x4] %asi, %o1 |
| 296 | nop |
| 297 | do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */ |
| 298 | ldswa [%o1 + 0x0] %asi, %o0 |
| 299 | sethi %hi(compat_sys_sendmsg), %g1 |
| 300 | lduwa [%o1 + 0x8] %asi, %o2 |
| 301 | jmpl %g1 + %lo(compat_sys_sendmsg), %g0 |
| 302 | lduwa [%o1 + 0x4] %asi, %o1 |
| 303 | nop |
| 304 | nop |
| 305 | nop |
| 306 | do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */ |
| 307 | ldswa [%o1 + 0x0] %asi, %o0 |
| 308 | sethi %hi(compat_sys_recvmsg), %g1 |
| 309 | lduwa [%o1 + 0x8] %asi, %o2 |
| 310 | jmpl %g1 + %lo(compat_sys_recvmsg), %g0 |
| 311 | lduwa [%o1 + 0x4] %asi, %o1 |
| 312 | nop |
| 313 | nop |
| 314 | nop |
| 315 | __socketcall_table_end: |
| 316 | |
| 317 | do_einval: |
| 318 | retl |
| 319 | mov -EINVAL, %o0 |
| 320 | do_efault: |
| 321 | retl |
| 322 | mov -EFAULT, %o0 |
| 323 | |
| 324 | .section __ex_table |
| 325 | .align 4 |
| 326 | .word __socketcall_table_begin, 0, __socketcall_table_end, do_efault |
| 327 | .previous |