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_perfctr, sys_perfctr, %o0) 55SIGN1(sys32_umount, sys_umount, %o1) 56SIGN1(sys32_signal, sys_signal, %o0) 57SIGN1(sys32_access, sys_access, %o1) 58SIGN1(sys32_msync, sys_msync, %o2) 59SIGN2(sys32_reboot, sys_reboot, %o0, %o1) 60SIGN1(sys32_setitimer, compat_sys_setitimer, %o0) 61SIGN1(sys32_getitimer, compat_sys_getitimer, %o0) 62SIGN1(sys32_sethostname, sys_sethostname, %o1) 63SIGN1(sys32_swapon, sys_swapon, %o1) 64SIGN1(sys32_sigaction, compat_sys_sigaction, %o0) 65SIGN1(sys32_rt_sigaction, compat_sys_rt_sigaction, %o0) 66SIGN1(sys32_sigprocmask, compat_sys_sigprocmask, %o0) 67SIGN1(sys32_rt_sigprocmask, compat_sys_rt_sigprocmask, %o0) 68SIGN2(sys32_rt_sigqueueinfo, compat_sys_rt_sigqueueinfo, %o0, %o1) 69SIGN1(sys32_getrusage, compat_sys_getrusage, %o0) 70SIGN1(sys32_setxattr, sys_setxattr, %o4) 71SIGN1(sys32_lsetxattr, sys_lsetxattr, %o4) 72SIGN1(sys32_fsetxattr, sys_fsetxattr, %o4) 73SIGN1(sys32_fgetxattr, sys_fgetxattr, %o0) 74SIGN1(sys32_flistxattr, sys_flistxattr, %o0) 75SIGN1(sys32_fremovexattr, sys_fremovexattr, %o0) 76SIGN2(sys32_tkill, sys_tkill, %o0, %o1) 77SIGN1(sys32_epoll_create, sys_epoll_create, %o0) 78SIGN3(sys32_epoll_ctl, sys_epoll_ctl, %o0, %o1, %o2) 79SIGN3(sys32_epoll_wait, sys_epoll_wait, %o0, %o2, %o3) 80SIGN1(sys32_readahead, compat_sys_readahead, %o0) 81SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4) 82SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5) 83SIGN2(sys32_bdflush, sys_bdflush, %o0, %o1) 84SIGN1(sys32_mlockall, sys_mlockall, %o0) 85SIGN1(sys32_nfsservctl, compat_sys_nfsservctl, %o0) 86SIGN1(sys32_clock_nanosleep, compat_sys_clock_nanosleep, %o1) 87SIGN1(sys32_timer_settime, compat_sys_timer_settime, %o1) 88SIGN1(sys32_io_submit, compat_sys_io_submit, %o1) 89SIGN1(sys32_mq_open, compat_sys_mq_open, %o1) 90SIGN1(sys32_select, compat_sys_select, %o0) 91SIGN1(sys32_mkdir, sys_mkdir, %o1) 92SIGN3(sys32_futex, compat_sys_futex, %o1, %o2, %o5) 93SIGN1(sys32_sysfs, compat_sys_sysfs, %o0) 94SIGN2(sys32_sendfile, compat_sys_sendfile, %o0, %o1) 95SIGN2(sys32_sendfile64, compat_sys_sendfile64, %o0, %o1) 96SIGN1(sys32_prctl, sys_prctl, %o0) 97SIGN1(sys32_sched_rr_get_interval, compat_sys_sched_rr_get_interval, %o0) 98SIGN2(sys32_waitpid, sys_waitpid, %o0, %o2) 99SIGN1(sys32_getgroups, sys_getgroups, %o0) 100SIGN1(sys32_getpgid, sys_getpgid, %o0) 101SIGN2(sys32_getpriority, sys_getpriority, %o0, %o1) 102SIGN1(sys32_getsid, sys_getsid, %o0) 103SIGN2(sys32_kill, sys_kill, %o0, %o1) 104SIGN1(sys32_nice, sys_nice, %o0) 105SIGN1(sys32_lseek, sys_lseek, %o1) 106SIGN2(sys32_open, sparc32_open, %o1, %o2) 107SIGN1(sys32_readlink, sys_readlink, %o2) 108SIGN1(sys32_sched_get_priority_max, sys_sched_get_priority_max, %o0) 109SIGN1(sys32_sched_get_priority_min, sys_sched_get_priority_min, %o0) 110SIGN1(sys32_sched_getparam, sys_sched_getparam, %o0) 111SIGN1(sys32_sched_getscheduler, sys_sched_getscheduler, %o0) 112SIGN1(sys32_sched_setparam, sys_sched_setparam, %o0) 113SIGN2(sys32_sched_setscheduler, sys_sched_setscheduler, %o0, %o1) 114SIGN1(sys32_getdomainname, sys_getdomainname, %o1) 115SIGN1(sys32_setdomainname, sys_setdomainname, %o1) 116SIGN1(sys32_setgroups, sys_setgroups, %o0) 117SIGN2(sys32_setpgid, sys_setpgid, %o0, %o1) 118SIGN3(sys32_setpriority, sys_setpriority, %o0, %o1, %o2) 119SIGN1(sys32_ssetmask, sys_ssetmask, %o0) 120SIGN2(sys32_syslog, sys_syslog, %o0, %o2) 121SIGN1(sys32_umask, sys_umask, %o0) 122SIGN3(sys32_tgkill, sys_tgkill, %o0, %o1, %o2) 123SIGN1(sys32_sendto, sys_sendto, %o0) 124SIGN1(sys32_recvfrom, sys_recvfrom, %o0) 125SIGN3(sys32_socket, sys_socket, %o0, %o1, %o2) 126SIGN2(sys32_connect, sys_connect, %o0, %o2) 127SIGN2(sys32_bind, sys_bind, %o0, %o2) 128SIGN2(sys32_listen, sys_listen, %o0, %o1) 129SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0) 130SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0) 131SIGN2(sys32_shutdown, sys_shutdown, %o0, %o1) 132SIGN3(sys32_socketpair, sys_socketpair, %o0, %o1, %o2) 133SIGN1(sys32_getpeername, sys_getpeername, %o0) 134SIGN1(sys32_getsockname, sys_getsockname, %o0) 135SIGN2(sys32_ioprio_get, sys_ioprio_get, %o0, %o1) 136SIGN3(sys32_ioprio_set, sys_ioprio_set, %o0, %o1, %o2) 137SIGN2(sys32_splice, sys_splice, %o0, %o1) 138SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5) 139SIGN2(sys32_tee, sys_tee, %o0, %o1) 140SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0) 141 142 .globl sys32_mmap2 143sys32_mmap2: 144 sethi %hi(sys_mmap), %g1 145 jmpl %g1 + %lo(sys_mmap), %g0 146 sllx %o5, 12, %o5 147 148 .align 32 149 .globl sys32_socketcall 150sys32_socketcall: /* %o0=call, %o1=args */ 151 cmp %o0, 1 152 bl,pn %xcc, do_einval 153 cmp %o0, 18 154 bg,pn %xcc, do_einval 155 sub %o0, 1, %o0 156 sllx %o0, 5, %o0 157 sethi %hi(__socketcall_table_begin), %g2 158 or %g2, %lo(__socketcall_table_begin), %g2 159 jmpl %g2 + %o0, %g0 160 nop 161do_einval: 162 retl 163 mov -EINVAL, %o0 164 165 .align 32 166__socketcall_table_begin: 167 168 /* Each entry is exactly 32 bytes. */ 169do_sys_socket: /* sys_socket(int, int, int) */ 1701: ldswa [%o1 + 0x0] %asi, %o0 171 sethi %hi(sys_socket), %g1 1722: ldswa [%o1 + 0x8] %asi, %o2 173 jmpl %g1 + %lo(sys_socket), %g0 1743: ldswa [%o1 + 0x4] %asi, %o1 175 nop 176 nop 177 nop 178do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */ 1794: ldswa [%o1 + 0x0] %asi, %o0 180 sethi %hi(sys_bind), %g1 1815: ldswa [%o1 + 0x8] %asi, %o2 182 jmpl %g1 + %lo(sys_bind), %g0 1836: lduwa [%o1 + 0x4] %asi, %o1 184 nop 185 nop 186 nop 187do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */ 1887: ldswa [%o1 + 0x0] %asi, %o0 189 sethi %hi(sys_connect), %g1 1908: ldswa [%o1 + 0x8] %asi, %o2 191 jmpl %g1 + %lo(sys_connect), %g0 1929: lduwa [%o1 + 0x4] %asi, %o1 193 nop 194 nop 195 nop 196do_sys_listen: /* sys_listen(int, int) */ 19710: ldswa [%o1 + 0x0] %asi, %o0 198 sethi %hi(sys_listen), %g1 199 jmpl %g1 + %lo(sys_listen), %g0 20011: ldswa [%o1 + 0x4] %asi, %o1 201 nop 202 nop 203 nop 204 nop 205do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */ 20612: ldswa [%o1 + 0x0] %asi, %o0 207 sethi %hi(sys_accept), %g1 20813: lduwa [%o1 + 0x8] %asi, %o2 209 jmpl %g1 + %lo(sys_accept), %g0 21014: lduwa [%o1 + 0x4] %asi, %o1 211 nop 212 nop 213 nop 214do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */ 21515: ldswa [%o1 + 0x0] %asi, %o0 216 sethi %hi(sys_getsockname), %g1 21716: lduwa [%o1 + 0x8] %asi, %o2 218 jmpl %g1 + %lo(sys_getsockname), %g0 21917: lduwa [%o1 + 0x4] %asi, %o1 220 nop 221 nop 222 nop 223do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */ 22418: ldswa [%o1 + 0x0] %asi, %o0 225 sethi %hi(sys_getpeername), %g1 22619: lduwa [%o1 + 0x8] %asi, %o2 227 jmpl %g1 + %lo(sys_getpeername), %g0 22820: lduwa [%o1 + 0x4] %asi, %o1 229 nop 230 nop 231 nop 232do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */ 23321: ldswa [%o1 + 0x0] %asi, %o0 234 sethi %hi(sys_socketpair), %g1 23522: ldswa [%o1 + 0x8] %asi, %o2 23623: lduwa [%o1 + 0xc] %asi, %o3 237 jmpl %g1 + %lo(sys_socketpair), %g0 23824: ldswa [%o1 + 0x4] %asi, %o1 239 nop 240 nop 241do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */ 24225: ldswa [%o1 + 0x0] %asi, %o0 243 sethi %hi(sys_send), %g1 24426: lduwa [%o1 + 0x8] %asi, %o2 24527: lduwa [%o1 + 0xc] %asi, %o3 246 jmpl %g1 + %lo(sys_send), %g0 24728: lduwa [%o1 + 0x4] %asi, %o1 248 nop 249 nop 250do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */ 25129: ldswa [%o1 + 0x0] %asi, %o0 252 sethi %hi(sys_recv), %g1 25330: lduwa [%o1 + 0x8] %asi, %o2 25431: lduwa [%o1 + 0xc] %asi, %o3 255 jmpl %g1 + %lo(sys_recv), %g0 25632: lduwa [%o1 + 0x4] %asi, %o1 257 nop 258 nop 259do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */ 26033: ldswa [%o1 + 0x0] %asi, %o0 261 sethi %hi(sys_sendto), %g1 26234: lduwa [%o1 + 0x8] %asi, %o2 26335: lduwa [%o1 + 0xc] %asi, %o3 26436: lduwa [%o1 + 0x10] %asi, %o4 26537: ldswa [%o1 + 0x14] %asi, %o5 266 jmpl %g1 + %lo(sys_sendto), %g0 26738: lduwa [%o1 + 0x4] %asi, %o1 268do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */ 26939: ldswa [%o1 + 0x0] %asi, %o0 270 sethi %hi(sys_recvfrom), %g1 27140: lduwa [%o1 + 0x8] %asi, %o2 27241: lduwa [%o1 + 0xc] %asi, %o3 27342: lduwa [%o1 + 0x10] %asi, %o4 27443: lduwa [%o1 + 0x14] %asi, %o5 275 jmpl %g1 + %lo(sys_recvfrom), %g0 27644: lduwa [%o1 + 0x4] %asi, %o1 277do_sys_shutdown: /* sys_shutdown(int, int) */ 27845: ldswa [%o1 + 0x0] %asi, %o0 279 sethi %hi(sys_shutdown), %g1 280 jmpl %g1 + %lo(sys_shutdown), %g0 28146: ldswa [%o1 + 0x4] %asi, %o1 282 nop 283 nop 284 nop 285 nop 286do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */ 28747: ldswa [%o1 + 0x0] %asi, %o0 288 sethi %hi(compat_sys_setsockopt), %g1 28948: ldswa [%o1 + 0x8] %asi, %o2 29049: lduwa [%o1 + 0xc] %asi, %o3 29150: ldswa [%o1 + 0x10] %asi, %o4 292 jmpl %g1 + %lo(compat_sys_setsockopt), %g0 29351: ldswa [%o1 + 0x4] %asi, %o1 294 nop 295do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */ 29652: ldswa [%o1 + 0x0] %asi, %o0 297 sethi %hi(compat_sys_getsockopt), %g1 29853: ldswa [%o1 + 0x8] %asi, %o2 29954: lduwa [%o1 + 0xc] %asi, %o3 30055: lduwa [%o1 + 0x10] %asi, %o4 301 jmpl %g1 + %lo(compat_sys_getsockopt), %g0 30256: ldswa [%o1 + 0x4] %asi, %o1 303 nop 304do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */ 30557: ldswa [%o1 + 0x0] %asi, %o0 306 sethi %hi(compat_sys_sendmsg), %g1 30758: lduwa [%o1 + 0x8] %asi, %o2 308 jmpl %g1 + %lo(compat_sys_sendmsg), %g0 30959: lduwa [%o1 + 0x4] %asi, %o1 310 nop 311 nop 312 nop 313do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */ 31460: ldswa [%o1 + 0x0] %asi, %o0 315 sethi %hi(compat_sys_recvmsg), %g1 31661: lduwa [%o1 + 0x8] %asi, %o2 317 jmpl %g1 + %lo(compat_sys_recvmsg), %g0 31862: lduwa [%o1 + 0x4] %asi, %o1 319 nop 320 nop 321 nop 322do_sys_accept4: /* sys_accept4(int, struct sockaddr *, int *, int) */ 32363: ldswa [%o1 + 0x0] %asi, %o0 324 sethi %hi(sys_accept4), %g1 32564: lduwa [%o1 + 0x8] %asi, %o2 32665: ldswa [%o1 + 0xc] %asi, %o3 327 jmpl %g1 + %lo(sys_accept4), %g0 32866: lduwa [%o1 + 0x4] %asi, %o1 329 nop 330 nop 331 332 .section __ex_table,"a" 333 .align 4 334 .word 1b, __retl_efault, 2b, __retl_efault 335 .word 3b, __retl_efault, 4b, __retl_efault 336 .word 5b, __retl_efault, 6b, __retl_efault 337 .word 7b, __retl_efault, 8b, __retl_efault 338 .word 9b, __retl_efault, 10b, __retl_efault 339 .word 11b, __retl_efault, 12b, __retl_efault 340 .word 13b, __retl_efault, 14b, __retl_efault 341 .word 15b, __retl_efault, 16b, __retl_efault 342 .word 17b, __retl_efault, 18b, __retl_efault 343 .word 19b, __retl_efault, 20b, __retl_efault 344 .word 21b, __retl_efault, 22b, __retl_efault 345 .word 23b, __retl_efault, 24b, __retl_efault 346 .word 25b, __retl_efault, 26b, __retl_efault 347 .word 27b, __retl_efault, 28b, __retl_efault 348 .word 29b, __retl_efault, 30b, __retl_efault 349 .word 31b, __retl_efault, 32b, __retl_efault 350 .word 33b, __retl_efault, 34b, __retl_efault 351 .word 35b, __retl_efault, 36b, __retl_efault 352 .word 37b, __retl_efault, 38b, __retl_efault 353 .word 39b, __retl_efault, 40b, __retl_efault 354 .word 41b, __retl_efault, 42b, __retl_efault 355 .word 43b, __retl_efault, 44b, __retl_efault 356 .word 45b, __retl_efault, 46b, __retl_efault 357 .word 47b, __retl_efault, 48b, __retl_efault 358 .word 49b, __retl_efault, 50b, __retl_efault 359 .word 51b, __retl_efault, 52b, __retl_efault 360 .word 53b, __retl_efault, 54b, __retl_efault 361 .word 55b, __retl_efault, 56b, __retl_efault 362 .word 57b, __retl_efault, 58b, __retl_efault 363 .word 59b, __retl_efault, 60b, __retl_efault 364 .word 61b, __retl_efault, 62b, __retl_efault 365 .word 63b, __retl_efault, 64b, __retl_efault 366 .word 65b, __retl_efault, 66b, __retl_efault 367 .previous 368