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 39SIGN1(sys32_wait4, compat_sys_wait4, %o2) 40SIGN1(sys32_setitimer, compat_sys_setitimer, %o0) 41SIGN1(sys32_getitimer, compat_sys_getitimer, %o0) 42SIGN1(sys32_sigaction, compat_sys_sparc_sigaction, %o0) 43SIGN1(sys32_rt_sigaction, compat_sys_rt_sigaction, %o0) 44SIGN1(sys32_sigprocmask, compat_sys_sigprocmask, %o0) 45SIGN1(sys32_rt_sigprocmask, compat_sys_rt_sigprocmask, %o0) 46SIGN2(sys32_rt_sigqueueinfo, compat_sys_rt_sigqueueinfo, %o0, %o1) 47SIGN1(sys32_getrusage, compat_sys_getrusage, %o0) 48SIGN1(sys32_readahead, compat_sys_readahead, %o0) 49SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4) 50SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5) 51SIGN1(sys32_clock_nanosleep, compat_sys_clock_nanosleep, %o1) 52SIGN1(sys32_timer_settime, compat_sys_timer_settime, %o1) 53SIGN1(sys32_io_submit, compat_sys_io_submit, %o1) 54SIGN1(sys32_mq_open, compat_sys_mq_open, %o1) 55SIGN1(sys32_select, compat_sys_select, %o0) 56SIGN3(sys32_futex, compat_sys_futex, %o1, %o2, %o5) 57SIGN2(sys32_sendfile, compat_sys_sendfile, %o0, %o1) 58SIGN1(sys32_sched_rr_get_interval, compat_sys_sched_rr_get_interval, %o0) 59SIGN2(sys32_open, compat_sys_open, %o1, %o2) 60SIGN1(sys32_recvfrom, compat_sys_recvfrom, %o0) 61SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0) 62SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0) 63SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5) 64SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0) 65 66 .globl sys32_mmap2 67sys32_mmap2: 68 sethi %hi(sys_mmap), %g1 69 jmpl %g1 + %lo(sys_mmap), %g0 70 sllx %o5, 12, %o5 71 72 .align 32 73 .globl sys32_socketcall 74sys32_socketcall: /* %o0=call, %o1=args */ 75 cmp %o0, 1 76 bl,pn %xcc, do_einval 77 cmp %o0, 18 78 bg,pn %xcc, do_einval 79 sub %o0, 1, %o0 80 sllx %o0, 5, %o0 81 sethi %hi(__socketcall_table_begin), %g2 82 or %g2, %lo(__socketcall_table_begin), %g2 83 jmpl %g2 + %o0, %g0 84 nop 85do_einval: 86 retl 87 mov -EINVAL, %o0 88 89 .align 32 90__socketcall_table_begin: 91 92 /* Each entry is exactly 32 bytes. */ 93do_sys_socket: /* sys_socket(int, int, int) */ 941: ldswa [%o1 + 0x0] %asi, %o0 95 sethi %hi(sys_socket), %g1 962: ldswa [%o1 + 0x8] %asi, %o2 97 jmpl %g1 + %lo(sys_socket), %g0 983: ldswa [%o1 + 0x4] %asi, %o1 99 nop 100 nop 101 nop 102do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */ 1034: ldswa [%o1 + 0x0] %asi, %o0 104 sethi %hi(sys_bind), %g1 1055: ldswa [%o1 + 0x8] %asi, %o2 106 jmpl %g1 + %lo(sys_bind), %g0 1076: lduwa [%o1 + 0x4] %asi, %o1 108 nop 109 nop 110 nop 111do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */ 1127: ldswa [%o1 + 0x0] %asi, %o0 113 sethi %hi(sys_connect), %g1 1148: ldswa [%o1 + 0x8] %asi, %o2 115 jmpl %g1 + %lo(sys_connect), %g0 1169: lduwa [%o1 + 0x4] %asi, %o1 117 nop 118 nop 119 nop 120do_sys_listen: /* sys_listen(int, int) */ 12110: ldswa [%o1 + 0x0] %asi, %o0 122 sethi %hi(sys_listen), %g1 123 jmpl %g1 + %lo(sys_listen), %g0 12411: ldswa [%o1 + 0x4] %asi, %o1 125 nop 126 nop 127 nop 128 nop 129do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */ 13012: ldswa [%o1 + 0x0] %asi, %o0 131 sethi %hi(sys_accept), %g1 13213: lduwa [%o1 + 0x8] %asi, %o2 133 jmpl %g1 + %lo(sys_accept), %g0 13414: lduwa [%o1 + 0x4] %asi, %o1 135 nop 136 nop 137 nop 138do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */ 13915: ldswa [%o1 + 0x0] %asi, %o0 140 sethi %hi(sys_getsockname), %g1 14116: lduwa [%o1 + 0x8] %asi, %o2 142 jmpl %g1 + %lo(sys_getsockname), %g0 14317: lduwa [%o1 + 0x4] %asi, %o1 144 nop 145 nop 146 nop 147do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */ 14818: ldswa [%o1 + 0x0] %asi, %o0 149 sethi %hi(sys_getpeername), %g1 15019: lduwa [%o1 + 0x8] %asi, %o2 151 jmpl %g1 + %lo(sys_getpeername), %g0 15220: lduwa [%o1 + 0x4] %asi, %o1 153 nop 154 nop 155 nop 156do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */ 15721: ldswa [%o1 + 0x0] %asi, %o0 158 sethi %hi(sys_socketpair), %g1 15922: ldswa [%o1 + 0x8] %asi, %o2 16023: lduwa [%o1 + 0xc] %asi, %o3 161 jmpl %g1 + %lo(sys_socketpair), %g0 16224: ldswa [%o1 + 0x4] %asi, %o1 163 nop 164 nop 165do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */ 16625: ldswa [%o1 + 0x0] %asi, %o0 167 sethi %hi(sys_send), %g1 16826: lduwa [%o1 + 0x8] %asi, %o2 16927: lduwa [%o1 + 0xc] %asi, %o3 170 jmpl %g1 + %lo(sys_send), %g0 17128: lduwa [%o1 + 0x4] %asi, %o1 172 nop 173 nop 174do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */ 17529: ldswa [%o1 + 0x0] %asi, %o0 176 sethi %hi(sys_recv), %g1 17730: lduwa [%o1 + 0x8] %asi, %o2 17831: lduwa [%o1 + 0xc] %asi, %o3 179 jmpl %g1 + %lo(sys_recv), %g0 18032: lduwa [%o1 + 0x4] %asi, %o1 181 nop 182 nop 183do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */ 18433: ldswa [%o1 + 0x0] %asi, %o0 185 sethi %hi(sys_sendto), %g1 18634: lduwa [%o1 + 0x8] %asi, %o2 18735: lduwa [%o1 + 0xc] %asi, %o3 18836: lduwa [%o1 + 0x10] %asi, %o4 18937: ldswa [%o1 + 0x14] %asi, %o5 190 jmpl %g1 + %lo(sys_sendto), %g0 19138: lduwa [%o1 + 0x4] %asi, %o1 192do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */ 19339: ldswa [%o1 + 0x0] %asi, %o0 194 sethi %hi(sys_recvfrom), %g1 19540: lduwa [%o1 + 0x8] %asi, %o2 19641: lduwa [%o1 + 0xc] %asi, %o3 19742: lduwa [%o1 + 0x10] %asi, %o4 19843: lduwa [%o1 + 0x14] %asi, %o5 199 jmpl %g1 + %lo(sys_recvfrom), %g0 20044: lduwa [%o1 + 0x4] %asi, %o1 201do_sys_shutdown: /* sys_shutdown(int, int) */ 20245: ldswa [%o1 + 0x0] %asi, %o0 203 sethi %hi(sys_shutdown), %g1 204 jmpl %g1 + %lo(sys_shutdown), %g0 20546: ldswa [%o1 + 0x4] %asi, %o1 206 nop 207 nop 208 nop 209 nop 210do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */ 21147: ldswa [%o1 + 0x0] %asi, %o0 212 sethi %hi(compat_sys_setsockopt), %g1 21348: ldswa [%o1 + 0x8] %asi, %o2 21449: lduwa [%o1 + 0xc] %asi, %o3 21550: ldswa [%o1 + 0x10] %asi, %o4 216 jmpl %g1 + %lo(compat_sys_setsockopt), %g0 21751: ldswa [%o1 + 0x4] %asi, %o1 218 nop 219do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */ 22052: ldswa [%o1 + 0x0] %asi, %o0 221 sethi %hi(compat_sys_getsockopt), %g1 22253: ldswa [%o1 + 0x8] %asi, %o2 22354: lduwa [%o1 + 0xc] %asi, %o3 22455: lduwa [%o1 + 0x10] %asi, %o4 225 jmpl %g1 + %lo(compat_sys_getsockopt), %g0 22656: ldswa [%o1 + 0x4] %asi, %o1 227 nop 228do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */ 22957: ldswa [%o1 + 0x0] %asi, %o0 230 sethi %hi(compat_sys_sendmsg), %g1 23158: lduwa [%o1 + 0x8] %asi, %o2 232 jmpl %g1 + %lo(compat_sys_sendmsg), %g0 23359: lduwa [%o1 + 0x4] %asi, %o1 234 nop 235 nop 236 nop 237do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */ 23860: ldswa [%o1 + 0x0] %asi, %o0 239 sethi %hi(compat_sys_recvmsg), %g1 24061: lduwa [%o1 + 0x8] %asi, %o2 241 jmpl %g1 + %lo(compat_sys_recvmsg), %g0 24262: lduwa [%o1 + 0x4] %asi, %o1 243 nop 244 nop 245 nop 246do_sys_accept4: /* sys_accept4(int, struct sockaddr *, int *, int) */ 24763: ldswa [%o1 + 0x0] %asi, %o0 248 sethi %hi(sys_accept4), %g1 24964: lduwa [%o1 + 0x8] %asi, %o2 25065: ldswa [%o1 + 0xc] %asi, %o3 251 jmpl %g1 + %lo(sys_accept4), %g0 25266: lduwa [%o1 + 0x4] %asi, %o1 253 nop 254 nop 255 256 .globl sys32_fanotify_mark 257sys32_fanotify_mark: 258 sethi %hi(sys_fanotify_mark), %g1 259 sllx %o2, 32, %o2 260 or %o2, %o3, %o2 261 mov %o4, %o3 262 jmpl %g1 + %lo(sys_fanotify_mark), %g0 263 mov %o5, %o4 264 265 .section __ex_table,"a" 266 .align 4 267 .word 1b, __retl_efault, 2b, __retl_efault 268 .word 3b, __retl_efault, 4b, __retl_efault 269 .word 5b, __retl_efault, 6b, __retl_efault 270 .word 7b, __retl_efault, 8b, __retl_efault 271 .word 9b, __retl_efault, 10b, __retl_efault 272 .word 11b, __retl_efault, 12b, __retl_efault 273 .word 13b, __retl_efault, 14b, __retl_efault 274 .word 15b, __retl_efault, 16b, __retl_efault 275 .word 17b, __retl_efault, 18b, __retl_efault 276 .word 19b, __retl_efault, 20b, __retl_efault 277 .word 21b, __retl_efault, 22b, __retl_efault 278 .word 23b, __retl_efault, 24b, __retl_efault 279 .word 25b, __retl_efault, 26b, __retl_efault 280 .word 27b, __retl_efault, 28b, __retl_efault 281 .word 29b, __retl_efault, 30b, __retl_efault 282 .word 31b, __retl_efault, 32b, __retl_efault 283 .word 33b, __retl_efault, 34b, __retl_efault 284 .word 35b, __retl_efault, 36b, __retl_efault 285 .word 37b, __retl_efault, 38b, __retl_efault 286 .word 39b, __retl_efault, 40b, __retl_efault 287 .word 41b, __retl_efault, 42b, __retl_efault 288 .word 43b, __retl_efault, 44b, __retl_efault 289 .word 45b, __retl_efault, 46b, __retl_efault 290 .word 47b, __retl_efault, 48b, __retl_efault 291 .word 49b, __retl_efault, 50b, __retl_efault 292 .word 51b, __retl_efault, 52b, __retl_efault 293 .word 53b, __retl_efault, 54b, __retl_efault 294 .word 55b, __retl_efault, 56b, __retl_efault 295 .word 57b, __retl_efault, 58b, __retl_efault 296 .word 59b, __retl_efault, 60b, __retl_efault 297 .word 61b, __retl_efault, 62b, __retl_efault 298 .word 63b, __retl_efault, 64b, __retl_efault 299 .word 65b, __retl_efault, 66b, __retl_efault 300 .previous 301