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 39#define SIGN4(STUB,SYSCALL,REG1,REG2,REG3,REG4) \ 40 .align 32; \ 41 .globl STUB; \ 42STUB: sra REG1, 0, REG1; \ 43 sethi %hi(SYSCALL), %g1; \ 44 sra REG2, 0, REG2; \ 45 sra REG3, 0, REG3; \ 46 jmpl %g1 + %lo(SYSCALL), %g0; \ 47 sra REG4, 0, REG4 48 49SIGN1(sys32_exit, sparc_exit, %o0) 50SIGN1(sys32_exit_group, sys_exit_group, %o0) 51SIGN1(sys32_wait4, compat_sys_wait4, %o2) 52SIGN1(sys32_creat, sys_creat, %o1) 53SIGN1(sys32_mknod, sys_mknod, %o1) 54SIGN1(sys32_umount, sys_umount, %o1) 55SIGN1(sys32_signal, sys_signal, %o0) 56SIGN1(sys32_access, sys_access, %o1) 57SIGN1(sys32_msync, sys_msync, %o2) 58SIGN2(sys32_reboot, sys_reboot, %o0, %o1) 59SIGN1(sys32_setitimer, compat_sys_setitimer, %o0) 60SIGN1(sys32_getitimer, compat_sys_getitimer, %o0) 61SIGN1(sys32_sethostname, sys_sethostname, %o1) 62SIGN1(sys32_swapon, sys_swapon, %o1) 63SIGN1(sys32_sigaction, compat_sys_sigaction, %o0) 64SIGN1(sys32_rt_sigaction, compat_sys_rt_sigaction, %o0) 65SIGN1(sys32_sigprocmask, compat_sys_sigprocmask, %o0) 66SIGN1(sys32_rt_sigprocmask, compat_sys_rt_sigprocmask, %o0) 67SIGN2(sys32_rt_sigqueueinfo, compat_sys_rt_sigqueueinfo, %o0, %o1) 68SIGN1(sys32_getrusage, compat_sys_getrusage, %o0) 69SIGN1(sys32_setxattr, sys_setxattr, %o4) 70SIGN1(sys32_lsetxattr, sys_lsetxattr, %o4) 71SIGN1(sys32_fsetxattr, sys_fsetxattr, %o4) 72SIGN1(sys32_fgetxattr, sys_fgetxattr, %o0) 73SIGN1(sys32_flistxattr, sys_flistxattr, %o0) 74SIGN1(sys32_fremovexattr, sys_fremovexattr, %o0) 75SIGN2(sys32_tkill, sys_tkill, %o0, %o1) 76SIGN1(sys32_epoll_create, sys_epoll_create, %o0) 77SIGN3(sys32_epoll_ctl, sys_epoll_ctl, %o0, %o1, %o2) 78SIGN3(sys32_epoll_wait, sys_epoll_wait, %o0, %o2, %o3) 79SIGN1(sys32_readahead, compat_sys_readahead, %o0) 80SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4) 81SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5) 82SIGN2(sys32_bdflush, sys_bdflush, %o0, %o1) 83SIGN1(sys32_mlockall, sys_mlockall, %o0) 84SIGN1(sys32_nfsservctl, compat_sys_nfsservctl, %o0) 85SIGN1(sys32_clock_nanosleep, compat_sys_clock_nanosleep, %o1) 86SIGN1(sys32_timer_settime, compat_sys_timer_settime, %o1) 87SIGN1(sys32_io_submit, compat_sys_io_submit, %o1) 88SIGN1(sys32_mq_open, compat_sys_mq_open, %o1) 89SIGN1(sys32_select, compat_sys_select, %o0) 90SIGN1(sys32_mkdir, sys_mkdir, %o1) 91SIGN3(sys32_futex, compat_sys_futex, %o1, %o2, %o5) 92SIGN1(sys32_sysfs, compat_sys_sysfs, %o0) 93SIGN2(sys32_sendfile, compat_sys_sendfile, %o0, %o1) 94SIGN2(sys32_sendfile64, compat_sys_sendfile64, %o0, %o1) 95SIGN1(sys32_prctl, sys_prctl, %o0) 96SIGN1(sys32_sched_rr_get_interval, compat_sys_sched_rr_get_interval, %o0) 97SIGN2(sys32_waitpid, sys_waitpid, %o0, %o2) 98SIGN1(sys32_getgroups, sys_getgroups, %o0) 99SIGN1(sys32_getpgid, sys_getpgid, %o0) 100SIGN2(sys32_getpriority, sys_getpriority, %o0, %o1) 101SIGN1(sys32_getsid, sys_getsid, %o0) 102SIGN2(sys32_kill, sys_kill, %o0, %o1) 103SIGN1(sys32_nice, sys_nice, %o0) 104SIGN1(sys32_lseek, sys_lseek, %o1) 105SIGN2(sys32_open, sparc32_open, %o1, %o2) 106SIGN1(sys32_readlink, sys_readlink, %o2) 107SIGN1(sys32_sched_get_priority_max, sys_sched_get_priority_max, %o0) 108SIGN1(sys32_sched_get_priority_min, sys_sched_get_priority_min, %o0) 109SIGN1(sys32_sched_getparam, sys_sched_getparam, %o0) 110SIGN1(sys32_sched_getscheduler, sys_sched_getscheduler, %o0) 111SIGN1(sys32_sched_setparam, sys_sched_setparam, %o0) 112SIGN2(sys32_sched_setscheduler, sys_sched_setscheduler, %o0, %o1) 113SIGN1(sys32_getdomainname, sys_getdomainname, %o1) 114SIGN1(sys32_setdomainname, sys_setdomainname, %o1) 115SIGN1(sys32_setgroups, sys_setgroups, %o0) 116SIGN2(sys32_setpgid, sys_setpgid, %o0, %o1) 117SIGN3(sys32_setpriority, sys_setpriority, %o0, %o1, %o2) 118SIGN1(sys32_ssetmask, sys_ssetmask, %o0) 119SIGN2(sys32_syslog, sys_syslog, %o0, %o2) 120SIGN1(sys32_umask, sys_umask, %o0) 121SIGN3(sys32_tgkill, sys_tgkill, %o0, %o1, %o2) 122SIGN1(sys32_sendto, sys_sendto, %o0) 123SIGN1(sys32_recvfrom, compat_sys_recvfrom, %o0) 124SIGN3(sys32_socket, sys_socket, %o0, %o1, %o2) 125SIGN2(sys32_connect, sys_connect, %o0, %o2) 126SIGN2(sys32_bind, sys_bind, %o0, %o2) 127SIGN2(sys32_listen, sys_listen, %o0, %o1) 128SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0) 129SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0) 130SIGN2(sys32_shutdown, sys_shutdown, %o0, %o1) 131SIGN3(sys32_socketpair, sys_socketpair, %o0, %o1, %o2) 132SIGN1(sys32_getpeername, sys_getpeername, %o0) 133SIGN1(sys32_getsockname, sys_getsockname, %o0) 134SIGN2(sys32_ioprio_get, sys_ioprio_get, %o0, %o1) 135SIGN3(sys32_ioprio_set, sys_ioprio_set, %o0, %o1, %o2) 136SIGN2(sys32_splice, sys_splice, %o0, %o2) 137SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5) 138SIGN2(sys32_tee, sys_tee, %o0, %o1) 139SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0) 140SIGN1(sys32_truncate, sys_truncate, %o1) 141SIGN1(sys32_ftruncate, sys_ftruncate, %o1) 142 143 .globl sys32_mmap2 144sys32_mmap2: 145 sethi %hi(sys_mmap), %g1 146 jmpl %g1 + %lo(sys_mmap), %g0 147 sllx %o5, 12, %o5 148 149 .align 32 150 .globl sys32_socketcall 151sys32_socketcall: /* %o0=call, %o1=args */ 152 cmp %o0, 1 153 bl,pn %xcc, do_einval 154 cmp %o0, 18 155 bg,pn %xcc, do_einval 156 sub %o0, 1, %o0 157 sllx %o0, 5, %o0 158 sethi %hi(__socketcall_table_begin), %g2 159 or %g2, %lo(__socketcall_table_begin), %g2 160 jmpl %g2 + %o0, %g0 161 nop 162do_einval: 163 retl 164 mov -EINVAL, %o0 165 166 .align 32 167__socketcall_table_begin: 168 169 /* Each entry is exactly 32 bytes. */ 170do_sys_socket: /* sys_socket(int, int, int) */ 1711: ldswa [%o1 + 0x0] %asi, %o0 172 sethi %hi(sys_socket), %g1 1732: ldswa [%o1 + 0x8] %asi, %o2 174 jmpl %g1 + %lo(sys_socket), %g0 1753: ldswa [%o1 + 0x4] %asi, %o1 176 nop 177 nop 178 nop 179do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */ 1804: ldswa [%o1 + 0x0] %asi, %o0 181 sethi %hi(sys_bind), %g1 1825: ldswa [%o1 + 0x8] %asi, %o2 183 jmpl %g1 + %lo(sys_bind), %g0 1846: lduwa [%o1 + 0x4] %asi, %o1 185 nop 186 nop 187 nop 188do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */ 1897: ldswa [%o1 + 0x0] %asi, %o0 190 sethi %hi(sys_connect), %g1 1918: ldswa [%o1 + 0x8] %asi, %o2 192 jmpl %g1 + %lo(sys_connect), %g0 1939: lduwa [%o1 + 0x4] %asi, %o1 194 nop 195 nop 196 nop 197do_sys_listen: /* sys_listen(int, int) */ 19810: ldswa [%o1 + 0x0] %asi, %o0 199 sethi %hi(sys_listen), %g1 200 jmpl %g1 + %lo(sys_listen), %g0 20111: ldswa [%o1 + 0x4] %asi, %o1 202 nop 203 nop 204 nop 205 nop 206do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */ 20712: ldswa [%o1 + 0x0] %asi, %o0 208 sethi %hi(sys_accept), %g1 20913: lduwa [%o1 + 0x8] %asi, %o2 210 jmpl %g1 + %lo(sys_accept), %g0 21114: lduwa [%o1 + 0x4] %asi, %o1 212 nop 213 nop 214 nop 215do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */ 21615: ldswa [%o1 + 0x0] %asi, %o0 217 sethi %hi(sys_getsockname), %g1 21816: lduwa [%o1 + 0x8] %asi, %o2 219 jmpl %g1 + %lo(sys_getsockname), %g0 22017: lduwa [%o1 + 0x4] %asi, %o1 221 nop 222 nop 223 nop 224do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */ 22518: ldswa [%o1 + 0x0] %asi, %o0 226 sethi %hi(sys_getpeername), %g1 22719: lduwa [%o1 + 0x8] %asi, %o2 228 jmpl %g1 + %lo(sys_getpeername), %g0 22920: lduwa [%o1 + 0x4] %asi, %o1 230 nop 231 nop 232 nop 233do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */ 23421: ldswa [%o1 + 0x0] %asi, %o0 235 sethi %hi(sys_socketpair), %g1 23622: ldswa [%o1 + 0x8] %asi, %o2 23723: lduwa [%o1 + 0xc] %asi, %o3 238 jmpl %g1 + %lo(sys_socketpair), %g0 23924: ldswa [%o1 + 0x4] %asi, %o1 240 nop 241 nop 242do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */ 24325: ldswa [%o1 + 0x0] %asi, %o0 244 sethi %hi(sys_send), %g1 24526: lduwa [%o1 + 0x8] %asi, %o2 24627: lduwa [%o1 + 0xc] %asi, %o3 247 jmpl %g1 + %lo(sys_send), %g0 24828: lduwa [%o1 + 0x4] %asi, %o1 249 nop 250 nop 251do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */ 25229: ldswa [%o1 + 0x0] %asi, %o0 253 sethi %hi(sys_recv), %g1 25430: lduwa [%o1 + 0x8] %asi, %o2 25531: lduwa [%o1 + 0xc] %asi, %o3 256 jmpl %g1 + %lo(sys_recv), %g0 25732: lduwa [%o1 + 0x4] %asi, %o1 258 nop 259 nop 260do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */ 26133: ldswa [%o1 + 0x0] %asi, %o0 262 sethi %hi(sys_sendto), %g1 26334: lduwa [%o1 + 0x8] %asi, %o2 26435: lduwa [%o1 + 0xc] %asi, %o3 26536: lduwa [%o1 + 0x10] %asi, %o4 26637: ldswa [%o1 + 0x14] %asi, %o5 267 jmpl %g1 + %lo(sys_sendto), %g0 26838: lduwa [%o1 + 0x4] %asi, %o1 269do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */ 27039: ldswa [%o1 + 0x0] %asi, %o0 271 sethi %hi(sys_recvfrom), %g1 27240: lduwa [%o1 + 0x8] %asi, %o2 27341: lduwa [%o1 + 0xc] %asi, %o3 27442: lduwa [%o1 + 0x10] %asi, %o4 27543: lduwa [%o1 + 0x14] %asi, %o5 276 jmpl %g1 + %lo(sys_recvfrom), %g0 27744: lduwa [%o1 + 0x4] %asi, %o1 278do_sys_shutdown: /* sys_shutdown(int, int) */ 27945: ldswa [%o1 + 0x0] %asi, %o0 280 sethi %hi(sys_shutdown), %g1 281 jmpl %g1 + %lo(sys_shutdown), %g0 28246: ldswa [%o1 + 0x4] %asi, %o1 283 nop 284 nop 285 nop 286 nop 287do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */ 28847: ldswa [%o1 + 0x0] %asi, %o0 289 sethi %hi(compat_sys_setsockopt), %g1 29048: ldswa [%o1 + 0x8] %asi, %o2 29149: lduwa [%o1 + 0xc] %asi, %o3 29250: ldswa [%o1 + 0x10] %asi, %o4 293 jmpl %g1 + %lo(compat_sys_setsockopt), %g0 29451: ldswa [%o1 + 0x4] %asi, %o1 295 nop 296do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */ 29752: ldswa [%o1 + 0x0] %asi, %o0 298 sethi %hi(compat_sys_getsockopt), %g1 29953: ldswa [%o1 + 0x8] %asi, %o2 30054: lduwa [%o1 + 0xc] %asi, %o3 30155: lduwa [%o1 + 0x10] %asi, %o4 302 jmpl %g1 + %lo(compat_sys_getsockopt), %g0 30356: ldswa [%o1 + 0x4] %asi, %o1 304 nop 305do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */ 30657: ldswa [%o1 + 0x0] %asi, %o0 307 sethi %hi(compat_sys_sendmsg), %g1 30858: lduwa [%o1 + 0x8] %asi, %o2 309 jmpl %g1 + %lo(compat_sys_sendmsg), %g0 31059: lduwa [%o1 + 0x4] %asi, %o1 311 nop 312 nop 313 nop 314do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */ 31560: ldswa [%o1 + 0x0] %asi, %o0 316 sethi %hi(compat_sys_recvmsg), %g1 31761: lduwa [%o1 + 0x8] %asi, %o2 318 jmpl %g1 + %lo(compat_sys_recvmsg), %g0 31962: lduwa [%o1 + 0x4] %asi, %o1 320 nop 321 nop 322 nop 323do_sys_accept4: /* sys_accept4(int, struct sockaddr *, int *, int) */ 32463: ldswa [%o1 + 0x0] %asi, %o0 325 sethi %hi(sys_accept4), %g1 32664: lduwa [%o1 + 0x8] %asi, %o2 32765: ldswa [%o1 + 0xc] %asi, %o3 328 jmpl %g1 + %lo(sys_accept4), %g0 32966: lduwa [%o1 + 0x4] %asi, %o1 330 nop 331 nop 332 333 .globl sys32_fanotify_mark 334sys32_fanotify_mark: 335 sethi %hi(sys_fanotify_mark), %g1 336 sllx %o2, 32, %o2 337 or %o2, %o3, %o2 338 mov %o4, %o3 339 jmpl %g1 + %lo(sys_fanotify_mark), %g0 340 mov %o5, %o4 341 342 .section __ex_table,"a" 343 .align 4 344 .word 1b, __retl_efault, 2b, __retl_efault 345 .word 3b, __retl_efault, 4b, __retl_efault 346 .word 5b, __retl_efault, 6b, __retl_efault 347 .word 7b, __retl_efault, 8b, __retl_efault 348 .word 9b, __retl_efault, 10b, __retl_efault 349 .word 11b, __retl_efault, 12b, __retl_efault 350 .word 13b, __retl_efault, 14b, __retl_efault 351 .word 15b, __retl_efault, 16b, __retl_efault 352 .word 17b, __retl_efault, 18b, __retl_efault 353 .word 19b, __retl_efault, 20b, __retl_efault 354 .word 21b, __retl_efault, 22b, __retl_efault 355 .word 23b, __retl_efault, 24b, __retl_efault 356 .word 25b, __retl_efault, 26b, __retl_efault 357 .word 27b, __retl_efault, 28b, __retl_efault 358 .word 29b, __retl_efault, 30b, __retl_efault 359 .word 31b, __retl_efault, 32b, __retl_efault 360 .word 33b, __retl_efault, 34b, __retl_efault 361 .word 35b, __retl_efault, 36b, __retl_efault 362 .word 37b, __retl_efault, 38b, __retl_efault 363 .word 39b, __retl_efault, 40b, __retl_efault 364 .word 41b, __retl_efault, 42b, __retl_efault 365 .word 43b, __retl_efault, 44b, __retl_efault 366 .word 45b, __retl_efault, 46b, __retl_efault 367 .word 47b, __retl_efault, 48b, __retl_efault 368 .word 49b, __retl_efault, 50b, __retl_efault 369 .word 51b, __retl_efault, 52b, __retl_efault 370 .word 53b, __retl_efault, 54b, __retl_efault 371 .word 55b, __retl_efault, 56b, __retl_efault 372 .word 57b, __retl_efault, 58b, __retl_efault 373 .word 59b, __retl_efault, 60b, __retl_efault 374 .word 61b, __retl_efault, 62b, __retl_efault 375 .word 63b, __retl_efault, 64b, __retl_efault 376 .word 65b, __retl_efault, 66b, __retl_efault 377 .previous 378