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_getrusage, compat_sys_getrusage, %o0) 40SIGN1(sys32_readahead, compat_sys_readahead, %o0) 41SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4) 42SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5) 43SIGN1(sys32_clock_nanosleep, compat_sys_clock_nanosleep, %o1) 44SIGN1(sys32_timer_settime, compat_sys_timer_settime, %o1) 45SIGN1(sys32_io_submit, compat_sys_io_submit, %o1) 46SIGN1(sys32_mq_open, compat_sys_mq_open, %o1) 47SIGN1(sys32_select, compat_sys_select, %o0) 48SIGN3(sys32_futex, compat_sys_futex, %o1, %o2, %o5) 49SIGN1(sys32_recvfrom, compat_sys_recvfrom, %o0) 50SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0) 51SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0) 52SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5) 53SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0) 54 55 .globl sys32_mmap2 56sys32_mmap2: 57 sethi %hi(sys_mmap), %g1 58 jmpl %g1 + %lo(sys_mmap), %g0 59 sllx %o5, 12, %o5 60 61 .align 32 62 .globl sys32_socketcall 63sys32_socketcall: /* %o0=call, %o1=args */ 64 cmp %o0, 1 65 bl,pn %xcc, do_einval 66 cmp %o0, 18 67 bg,pn %xcc, do_einval 68 sub %o0, 1, %o0 69 sllx %o0, 5, %o0 70 sethi %hi(__socketcall_table_begin), %g2 71 or %g2, %lo(__socketcall_table_begin), %g2 72 jmpl %g2 + %o0, %g0 73 nop 74do_einval: 75 retl 76 mov -EINVAL, %o0 77 78 .align 32 79__socketcall_table_begin: 80 81 /* Each entry is exactly 32 bytes. */ 82do_sys_socket: /* sys_socket(int, int, int) */ 831: ldswa [%o1 + 0x0] %asi, %o0 84 sethi %hi(sys_socket), %g1 852: ldswa [%o1 + 0x8] %asi, %o2 86 jmpl %g1 + %lo(sys_socket), %g0 873: ldswa [%o1 + 0x4] %asi, %o1 88 nop 89 nop 90 nop 91do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */ 924: ldswa [%o1 + 0x0] %asi, %o0 93 sethi %hi(sys_bind), %g1 945: ldswa [%o1 + 0x8] %asi, %o2 95 jmpl %g1 + %lo(sys_bind), %g0 966: lduwa [%o1 + 0x4] %asi, %o1 97 nop 98 nop 99 nop 100do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */ 1017: ldswa [%o1 + 0x0] %asi, %o0 102 sethi %hi(sys_connect), %g1 1038: ldswa [%o1 + 0x8] %asi, %o2 104 jmpl %g1 + %lo(sys_connect), %g0 1059: lduwa [%o1 + 0x4] %asi, %o1 106 nop 107 nop 108 nop 109do_sys_listen: /* sys_listen(int, int) */ 11010: ldswa [%o1 + 0x0] %asi, %o0 111 sethi %hi(sys_listen), %g1 112 jmpl %g1 + %lo(sys_listen), %g0 11311: ldswa [%o1 + 0x4] %asi, %o1 114 nop 115 nop 116 nop 117 nop 118do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */ 11912: ldswa [%o1 + 0x0] %asi, %o0 120 sethi %hi(sys_accept), %g1 12113: lduwa [%o1 + 0x8] %asi, %o2 122 jmpl %g1 + %lo(sys_accept), %g0 12314: lduwa [%o1 + 0x4] %asi, %o1 124 nop 125 nop 126 nop 127do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */ 12815: ldswa [%o1 + 0x0] %asi, %o0 129 sethi %hi(sys_getsockname), %g1 13016: lduwa [%o1 + 0x8] %asi, %o2 131 jmpl %g1 + %lo(sys_getsockname), %g0 13217: lduwa [%o1 + 0x4] %asi, %o1 133 nop 134 nop 135 nop 136do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */ 13718: ldswa [%o1 + 0x0] %asi, %o0 138 sethi %hi(sys_getpeername), %g1 13919: lduwa [%o1 + 0x8] %asi, %o2 140 jmpl %g1 + %lo(sys_getpeername), %g0 14120: lduwa [%o1 + 0x4] %asi, %o1 142 nop 143 nop 144 nop 145do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */ 14621: ldswa [%o1 + 0x0] %asi, %o0 147 sethi %hi(sys_socketpair), %g1 14822: ldswa [%o1 + 0x8] %asi, %o2 14923: lduwa [%o1 + 0xc] %asi, %o3 150 jmpl %g1 + %lo(sys_socketpair), %g0 15124: ldswa [%o1 + 0x4] %asi, %o1 152 nop 153 nop 154do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */ 15525: ldswa [%o1 + 0x0] %asi, %o0 156 sethi %hi(sys_send), %g1 15726: lduwa [%o1 + 0x8] %asi, %o2 15827: lduwa [%o1 + 0xc] %asi, %o3 159 jmpl %g1 + %lo(sys_send), %g0 16028: lduwa [%o1 + 0x4] %asi, %o1 161 nop 162 nop 163do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */ 16429: ldswa [%o1 + 0x0] %asi, %o0 165 sethi %hi(sys_recv), %g1 16630: lduwa [%o1 + 0x8] %asi, %o2 16731: lduwa [%o1 + 0xc] %asi, %o3 168 jmpl %g1 + %lo(sys_recv), %g0 16932: lduwa [%o1 + 0x4] %asi, %o1 170 nop 171 nop 172do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */ 17333: ldswa [%o1 + 0x0] %asi, %o0 174 sethi %hi(sys_sendto), %g1 17534: lduwa [%o1 + 0x8] %asi, %o2 17635: lduwa [%o1 + 0xc] %asi, %o3 17736: lduwa [%o1 + 0x10] %asi, %o4 17837: ldswa [%o1 + 0x14] %asi, %o5 179 jmpl %g1 + %lo(sys_sendto), %g0 18038: lduwa [%o1 + 0x4] %asi, %o1 181do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */ 18239: ldswa [%o1 + 0x0] %asi, %o0 183 sethi %hi(sys_recvfrom), %g1 18440: lduwa [%o1 + 0x8] %asi, %o2 18541: lduwa [%o1 + 0xc] %asi, %o3 18642: lduwa [%o1 + 0x10] %asi, %o4 18743: lduwa [%o1 + 0x14] %asi, %o5 188 jmpl %g1 + %lo(sys_recvfrom), %g0 18944: lduwa [%o1 + 0x4] %asi, %o1 190do_sys_shutdown: /* sys_shutdown(int, int) */ 19145: ldswa [%o1 + 0x0] %asi, %o0 192 sethi %hi(sys_shutdown), %g1 193 jmpl %g1 + %lo(sys_shutdown), %g0 19446: ldswa [%o1 + 0x4] %asi, %o1 195 nop 196 nop 197 nop 198 nop 199do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */ 20047: ldswa [%o1 + 0x0] %asi, %o0 201 sethi %hi(compat_sys_setsockopt), %g1 20248: ldswa [%o1 + 0x8] %asi, %o2 20349: lduwa [%o1 + 0xc] %asi, %o3 20450: ldswa [%o1 + 0x10] %asi, %o4 205 jmpl %g1 + %lo(compat_sys_setsockopt), %g0 20651: ldswa [%o1 + 0x4] %asi, %o1 207 nop 208do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */ 20952: ldswa [%o1 + 0x0] %asi, %o0 210 sethi %hi(compat_sys_getsockopt), %g1 21153: ldswa [%o1 + 0x8] %asi, %o2 21254: lduwa [%o1 + 0xc] %asi, %o3 21355: lduwa [%o1 + 0x10] %asi, %o4 214 jmpl %g1 + %lo(compat_sys_getsockopt), %g0 21556: ldswa [%o1 + 0x4] %asi, %o1 216 nop 217do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */ 21857: ldswa [%o1 + 0x0] %asi, %o0 219 sethi %hi(compat_sys_sendmsg), %g1 22058: lduwa [%o1 + 0x8] %asi, %o2 221 jmpl %g1 + %lo(compat_sys_sendmsg), %g0 22259: lduwa [%o1 + 0x4] %asi, %o1 223 nop 224 nop 225 nop 226do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */ 22760: ldswa [%o1 + 0x0] %asi, %o0 228 sethi %hi(compat_sys_recvmsg), %g1 22961: lduwa [%o1 + 0x8] %asi, %o2 230 jmpl %g1 + %lo(compat_sys_recvmsg), %g0 23162: lduwa [%o1 + 0x4] %asi, %o1 232 nop 233 nop 234 nop 235do_sys_accept4: /* sys_accept4(int, struct sockaddr *, int *, int) */ 23663: ldswa [%o1 + 0x0] %asi, %o0 237 sethi %hi(sys_accept4), %g1 23864: lduwa [%o1 + 0x8] %asi, %o2 23965: ldswa [%o1 + 0xc] %asi, %o3 240 jmpl %g1 + %lo(sys_accept4), %g0 24166: lduwa [%o1 + 0x4] %asi, %o1 242 nop 243 nop 244 245 .globl sys32_fanotify_mark 246sys32_fanotify_mark: 247 sethi %hi(sys_fanotify_mark), %g1 248 sllx %o2, 32, %o2 249 or %o2, %o3, %o2 250 mov %o4, %o3 251 jmpl %g1 + %lo(sys_fanotify_mark), %g0 252 mov %o5, %o4 253 254 .section __ex_table,"a" 255 .align 4 256 .word 1b, __retl_efault, 2b, __retl_efault 257 .word 3b, __retl_efault, 4b, __retl_efault 258 .word 5b, __retl_efault, 6b, __retl_efault 259 .word 7b, __retl_efault, 8b, __retl_efault 260 .word 9b, __retl_efault, 10b, __retl_efault 261 .word 11b, __retl_efault, 12b, __retl_efault 262 .word 13b, __retl_efault, 14b, __retl_efault 263 .word 15b, __retl_efault, 16b, __retl_efault 264 .word 17b, __retl_efault, 18b, __retl_efault 265 .word 19b, __retl_efault, 20b, __retl_efault 266 .word 21b, __retl_efault, 22b, __retl_efault 267 .word 23b, __retl_efault, 24b, __retl_efault 268 .word 25b, __retl_efault, 26b, __retl_efault 269 .word 27b, __retl_efault, 28b, __retl_efault 270 .word 29b, __retl_efault, 30b, __retl_efault 271 .word 31b, __retl_efault, 32b, __retl_efault 272 .word 33b, __retl_efault, 34b, __retl_efault 273 .word 35b, __retl_efault, 36b, __retl_efault 274 .word 37b, __retl_efault, 38b, __retl_efault 275 .word 39b, __retl_efault, 40b, __retl_efault 276 .word 41b, __retl_efault, 42b, __retl_efault 277 .word 43b, __retl_efault, 44b, __retl_efault 278 .word 45b, __retl_efault, 46b, __retl_efault 279 .word 47b, __retl_efault, 48b, __retl_efault 280 .word 49b, __retl_efault, 50b, __retl_efault 281 .word 51b, __retl_efault, 52b, __retl_efault 282 .word 53b, __retl_efault, 54b, __retl_efault 283 .word 55b, __retl_efault, 56b, __retl_efault 284 .word 57b, __retl_efault, 58b, __retl_efault 285 .word 59b, __retl_efault, 60b, __retl_efault 286 .word 61b, __retl_efault, 62b, __retl_efault 287 .word 63b, __retl_efault, 64b, __retl_efault 288 .word 65b, __retl_efault, 66b, __retl_efault 289 .previous 290