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) 49SIGN2(sys32_sendfile, compat_sys_sendfile, %o0, %o1) 50SIGN1(sys32_recvfrom, compat_sys_recvfrom, %o0) 51SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0) 52SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0) 53SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5) 54SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0) 55 56 .globl sys32_mmap2 57sys32_mmap2: 58 sethi %hi(sys_mmap), %g1 59 jmpl %g1 + %lo(sys_mmap), %g0 60 sllx %o5, 12, %o5 61 62 .align 32 63 .globl sys32_socketcall 64sys32_socketcall: /* %o0=call, %o1=args */ 65 cmp %o0, 1 66 bl,pn %xcc, do_einval 67 cmp %o0, 18 68 bg,pn %xcc, do_einval 69 sub %o0, 1, %o0 70 sllx %o0, 5, %o0 71 sethi %hi(__socketcall_table_begin), %g2 72 or %g2, %lo(__socketcall_table_begin), %g2 73 jmpl %g2 + %o0, %g0 74 nop 75do_einval: 76 retl 77 mov -EINVAL, %o0 78 79 .align 32 80__socketcall_table_begin: 81 82 /* Each entry is exactly 32 bytes. */ 83do_sys_socket: /* sys_socket(int, int, int) */ 841: ldswa [%o1 + 0x0] %asi, %o0 85 sethi %hi(sys_socket), %g1 862: ldswa [%o1 + 0x8] %asi, %o2 87 jmpl %g1 + %lo(sys_socket), %g0 883: ldswa [%o1 + 0x4] %asi, %o1 89 nop 90 nop 91 nop 92do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */ 934: ldswa [%o1 + 0x0] %asi, %o0 94 sethi %hi(sys_bind), %g1 955: ldswa [%o1 + 0x8] %asi, %o2 96 jmpl %g1 + %lo(sys_bind), %g0 976: lduwa [%o1 + 0x4] %asi, %o1 98 nop 99 nop 100 nop 101do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */ 1027: ldswa [%o1 + 0x0] %asi, %o0 103 sethi %hi(sys_connect), %g1 1048: ldswa [%o1 + 0x8] %asi, %o2 105 jmpl %g1 + %lo(sys_connect), %g0 1069: lduwa [%o1 + 0x4] %asi, %o1 107 nop 108 nop 109 nop 110do_sys_listen: /* sys_listen(int, int) */ 11110: ldswa [%o1 + 0x0] %asi, %o0 112 sethi %hi(sys_listen), %g1 113 jmpl %g1 + %lo(sys_listen), %g0 11411: ldswa [%o1 + 0x4] %asi, %o1 115 nop 116 nop 117 nop 118 nop 119do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */ 12012: ldswa [%o1 + 0x0] %asi, %o0 121 sethi %hi(sys_accept), %g1 12213: lduwa [%o1 + 0x8] %asi, %o2 123 jmpl %g1 + %lo(sys_accept), %g0 12414: lduwa [%o1 + 0x4] %asi, %o1 125 nop 126 nop 127 nop 128do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */ 12915: ldswa [%o1 + 0x0] %asi, %o0 130 sethi %hi(sys_getsockname), %g1 13116: lduwa [%o1 + 0x8] %asi, %o2 132 jmpl %g1 + %lo(sys_getsockname), %g0 13317: lduwa [%o1 + 0x4] %asi, %o1 134 nop 135 nop 136 nop 137do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */ 13818: ldswa [%o1 + 0x0] %asi, %o0 139 sethi %hi(sys_getpeername), %g1 14019: lduwa [%o1 + 0x8] %asi, %o2 141 jmpl %g1 + %lo(sys_getpeername), %g0 14220: lduwa [%o1 + 0x4] %asi, %o1 143 nop 144 nop 145 nop 146do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */ 14721: ldswa [%o1 + 0x0] %asi, %o0 148 sethi %hi(sys_socketpair), %g1 14922: ldswa [%o1 + 0x8] %asi, %o2 15023: lduwa [%o1 + 0xc] %asi, %o3 151 jmpl %g1 + %lo(sys_socketpair), %g0 15224: ldswa [%o1 + 0x4] %asi, %o1 153 nop 154 nop 155do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */ 15625: ldswa [%o1 + 0x0] %asi, %o0 157 sethi %hi(sys_send), %g1 15826: lduwa [%o1 + 0x8] %asi, %o2 15927: lduwa [%o1 + 0xc] %asi, %o3 160 jmpl %g1 + %lo(sys_send), %g0 16128: lduwa [%o1 + 0x4] %asi, %o1 162 nop 163 nop 164do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */ 16529: ldswa [%o1 + 0x0] %asi, %o0 166 sethi %hi(sys_recv), %g1 16730: lduwa [%o1 + 0x8] %asi, %o2 16831: lduwa [%o1 + 0xc] %asi, %o3 169 jmpl %g1 + %lo(sys_recv), %g0 17032: lduwa [%o1 + 0x4] %asi, %o1 171 nop 172 nop 173do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */ 17433: ldswa [%o1 + 0x0] %asi, %o0 175 sethi %hi(sys_sendto), %g1 17634: lduwa [%o1 + 0x8] %asi, %o2 17735: lduwa [%o1 + 0xc] %asi, %o3 17836: lduwa [%o1 + 0x10] %asi, %o4 17937: ldswa [%o1 + 0x14] %asi, %o5 180 jmpl %g1 + %lo(sys_sendto), %g0 18138: lduwa [%o1 + 0x4] %asi, %o1 182do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */ 18339: ldswa [%o1 + 0x0] %asi, %o0 184 sethi %hi(sys_recvfrom), %g1 18540: lduwa [%o1 + 0x8] %asi, %o2 18641: lduwa [%o1 + 0xc] %asi, %o3 18742: lduwa [%o1 + 0x10] %asi, %o4 18843: lduwa [%o1 + 0x14] %asi, %o5 189 jmpl %g1 + %lo(sys_recvfrom), %g0 19044: lduwa [%o1 + 0x4] %asi, %o1 191do_sys_shutdown: /* sys_shutdown(int, int) */ 19245: ldswa [%o1 + 0x0] %asi, %o0 193 sethi %hi(sys_shutdown), %g1 194 jmpl %g1 + %lo(sys_shutdown), %g0 19546: ldswa [%o1 + 0x4] %asi, %o1 196 nop 197 nop 198 nop 199 nop 200do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */ 20147: ldswa [%o1 + 0x0] %asi, %o0 202 sethi %hi(compat_sys_setsockopt), %g1 20348: ldswa [%o1 + 0x8] %asi, %o2 20449: lduwa [%o1 + 0xc] %asi, %o3 20550: ldswa [%o1 + 0x10] %asi, %o4 206 jmpl %g1 + %lo(compat_sys_setsockopt), %g0 20751: ldswa [%o1 + 0x4] %asi, %o1 208 nop 209do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */ 21052: ldswa [%o1 + 0x0] %asi, %o0 211 sethi %hi(compat_sys_getsockopt), %g1 21253: ldswa [%o1 + 0x8] %asi, %o2 21354: lduwa [%o1 + 0xc] %asi, %o3 21455: lduwa [%o1 + 0x10] %asi, %o4 215 jmpl %g1 + %lo(compat_sys_getsockopt), %g0 21656: ldswa [%o1 + 0x4] %asi, %o1 217 nop 218do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */ 21957: ldswa [%o1 + 0x0] %asi, %o0 220 sethi %hi(compat_sys_sendmsg), %g1 22158: lduwa [%o1 + 0x8] %asi, %o2 222 jmpl %g1 + %lo(compat_sys_sendmsg), %g0 22359: lduwa [%o1 + 0x4] %asi, %o1 224 nop 225 nop 226 nop 227do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */ 22860: ldswa [%o1 + 0x0] %asi, %o0 229 sethi %hi(compat_sys_recvmsg), %g1 23061: lduwa [%o1 + 0x8] %asi, %o2 231 jmpl %g1 + %lo(compat_sys_recvmsg), %g0 23262: lduwa [%o1 + 0x4] %asi, %o1 233 nop 234 nop 235 nop 236do_sys_accept4: /* sys_accept4(int, struct sockaddr *, int *, int) */ 23763: ldswa [%o1 + 0x0] %asi, %o0 238 sethi %hi(sys_accept4), %g1 23964: lduwa [%o1 + 0x8] %asi, %o2 24065: ldswa [%o1 + 0xc] %asi, %o3 241 jmpl %g1 + %lo(sys_accept4), %g0 24266: lduwa [%o1 + 0x4] %asi, %o1 243 nop 244 nop 245 246 .globl sys32_fanotify_mark 247sys32_fanotify_mark: 248 sethi %hi(sys_fanotify_mark), %g1 249 sllx %o2, 32, %o2 250 or %o2, %o3, %o2 251 mov %o4, %o3 252 jmpl %g1 + %lo(sys_fanotify_mark), %g0 253 mov %o5, %o4 254 255 .section __ex_table,"a" 256 .align 4 257 .word 1b, __retl_efault, 2b, __retl_efault 258 .word 3b, __retl_efault, 4b, __retl_efault 259 .word 5b, __retl_efault, 6b, __retl_efault 260 .word 7b, __retl_efault, 8b, __retl_efault 261 .word 9b, __retl_efault, 10b, __retl_efault 262 .word 11b, __retl_efault, 12b, __retl_efault 263 .word 13b, __retl_efault, 14b, __retl_efault 264 .word 15b, __retl_efault, 16b, __retl_efault 265 .word 17b, __retl_efault, 18b, __retl_efault 266 .word 19b, __retl_efault, 20b, __retl_efault 267 .word 21b, __retl_efault, 22b, __retl_efault 268 .word 23b, __retl_efault, 24b, __retl_efault 269 .word 25b, __retl_efault, 26b, __retl_efault 270 .word 27b, __retl_efault, 28b, __retl_efault 271 .word 29b, __retl_efault, 30b, __retl_efault 272 .word 31b, __retl_efault, 32b, __retl_efault 273 .word 33b, __retl_efault, 34b, __retl_efault 274 .word 35b, __retl_efault, 36b, __retl_efault 275 .word 37b, __retl_efault, 38b, __retl_efault 276 .word 39b, __retl_efault, 40b, __retl_efault 277 .word 41b, __retl_efault, 42b, __retl_efault 278 .word 43b, __retl_efault, 44b, __retl_efault 279 .word 45b, __retl_efault, 46b, __retl_efault 280 .word 47b, __retl_efault, 48b, __retl_efault 281 .word 49b, __retl_efault, 50b, __retl_efault 282 .word 51b, __retl_efault, 52b, __retl_efault 283 .word 53b, __retl_efault, 54b, __retl_efault 284 .word 55b, __retl_efault, 56b, __retl_efault 285 .word 57b, __retl_efault, 58b, __retl_efault 286 .word 59b, __retl_efault, 60b, __retl_efault 287 .word 61b, __retl_efault, 62b, __retl_efault 288 .word 63b, __retl_efault, 64b, __retl_efault 289 .word 65b, __retl_efault, 66b, __retl_efault 290 .previous 291