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_readahead, compat_sys_readahead, %o0) 40SIGN2(sys32_fadvise64, compat_sys_fadvise64, %o0, %o4) 41SIGN2(sys32_fadvise64_64, compat_sys_fadvise64_64, %o0, %o5) 42SIGN1(sys32_clock_nanosleep, compat_sys_clock_nanosleep, %o1) 43SIGN1(sys32_timer_settime, compat_sys_timer_settime, %o1) 44SIGN1(sys32_io_submit, compat_sys_io_submit, %o1) 45SIGN1(sys32_mq_open, compat_sys_mq_open, %o1) 46SIGN1(sys32_select, compat_sys_select, %o0) 47SIGN3(sys32_futex, compat_sys_futex, %o1, %o2, %o5) 48SIGN1(sys32_recvfrom, compat_sys_recvfrom, %o0) 49SIGN1(sys32_recvmsg, compat_sys_recvmsg, %o0) 50SIGN1(sys32_sendmsg, compat_sys_sendmsg, %o0) 51SIGN2(sys32_sync_file_range, compat_sync_file_range, %o0, %o5) 52SIGN1(sys32_vmsplice, compat_sys_vmsplice, %o0) 53 54 .globl sys32_mmap2 55sys32_mmap2: 56 sethi %hi(sys_mmap), %g1 57 jmpl %g1 + %lo(sys_mmap), %g0 58 sllx %o5, 12, %o5 59 60 .align 32 61 .globl sys32_socketcall 62sys32_socketcall: /* %o0=call, %o1=args */ 63 cmp %o0, 1 64 bl,pn %xcc, do_einval 65 cmp %o0, 18 66 bg,pn %xcc, do_einval 67 sub %o0, 1, %o0 68 sllx %o0, 5, %o0 69 sethi %hi(__socketcall_table_begin), %g2 70 or %g2, %lo(__socketcall_table_begin), %g2 71 jmpl %g2 + %o0, %g0 72 nop 73do_einval: 74 retl 75 mov -EINVAL, %o0 76 77 .align 32 78__socketcall_table_begin: 79 80 /* Each entry is exactly 32 bytes. */ 81do_sys_socket: /* sys_socket(int, int, int) */ 821: ldswa [%o1 + 0x0] %asi, %o0 83 sethi %hi(sys_socket), %g1 842: ldswa [%o1 + 0x8] %asi, %o2 85 jmpl %g1 + %lo(sys_socket), %g0 863: ldswa [%o1 + 0x4] %asi, %o1 87 nop 88 nop 89 nop 90do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */ 914: ldswa [%o1 + 0x0] %asi, %o0 92 sethi %hi(sys_bind), %g1 935: ldswa [%o1 + 0x8] %asi, %o2 94 jmpl %g1 + %lo(sys_bind), %g0 956: lduwa [%o1 + 0x4] %asi, %o1 96 nop 97 nop 98 nop 99do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */ 1007: ldswa [%o1 + 0x0] %asi, %o0 101 sethi %hi(sys_connect), %g1 1028: ldswa [%o1 + 0x8] %asi, %o2 103 jmpl %g1 + %lo(sys_connect), %g0 1049: lduwa [%o1 + 0x4] %asi, %o1 105 nop 106 nop 107 nop 108do_sys_listen: /* sys_listen(int, int) */ 10910: ldswa [%o1 + 0x0] %asi, %o0 110 sethi %hi(sys_listen), %g1 111 jmpl %g1 + %lo(sys_listen), %g0 11211: ldswa [%o1 + 0x4] %asi, %o1 113 nop 114 nop 115 nop 116 nop 117do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */ 11812: ldswa [%o1 + 0x0] %asi, %o0 119 sethi %hi(sys_accept), %g1 12013: lduwa [%o1 + 0x8] %asi, %o2 121 jmpl %g1 + %lo(sys_accept), %g0 12214: lduwa [%o1 + 0x4] %asi, %o1 123 nop 124 nop 125 nop 126do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */ 12715: ldswa [%o1 + 0x0] %asi, %o0 128 sethi %hi(sys_getsockname), %g1 12916: lduwa [%o1 + 0x8] %asi, %o2 130 jmpl %g1 + %lo(sys_getsockname), %g0 13117: lduwa [%o1 + 0x4] %asi, %o1 132 nop 133 nop 134 nop 135do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */ 13618: ldswa [%o1 + 0x0] %asi, %o0 137 sethi %hi(sys_getpeername), %g1 13819: lduwa [%o1 + 0x8] %asi, %o2 139 jmpl %g1 + %lo(sys_getpeername), %g0 14020: lduwa [%o1 + 0x4] %asi, %o1 141 nop 142 nop 143 nop 144do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */ 14521: ldswa [%o1 + 0x0] %asi, %o0 146 sethi %hi(sys_socketpair), %g1 14722: ldswa [%o1 + 0x8] %asi, %o2 14823: lduwa [%o1 + 0xc] %asi, %o3 149 jmpl %g1 + %lo(sys_socketpair), %g0 15024: ldswa [%o1 + 0x4] %asi, %o1 151 nop 152 nop 153do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */ 15425: ldswa [%o1 + 0x0] %asi, %o0 155 sethi %hi(sys_send), %g1 15626: lduwa [%o1 + 0x8] %asi, %o2 15727: lduwa [%o1 + 0xc] %asi, %o3 158 jmpl %g1 + %lo(sys_send), %g0 15928: lduwa [%o1 + 0x4] %asi, %o1 160 nop 161 nop 162do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */ 16329: ldswa [%o1 + 0x0] %asi, %o0 164 sethi %hi(sys_recv), %g1 16530: lduwa [%o1 + 0x8] %asi, %o2 16631: lduwa [%o1 + 0xc] %asi, %o3 167 jmpl %g1 + %lo(sys_recv), %g0 16832: lduwa [%o1 + 0x4] %asi, %o1 169 nop 170 nop 171do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */ 17233: ldswa [%o1 + 0x0] %asi, %o0 173 sethi %hi(sys_sendto), %g1 17434: lduwa [%o1 + 0x8] %asi, %o2 17535: lduwa [%o1 + 0xc] %asi, %o3 17636: lduwa [%o1 + 0x10] %asi, %o4 17737: ldswa [%o1 + 0x14] %asi, %o5 178 jmpl %g1 + %lo(sys_sendto), %g0 17938: lduwa [%o1 + 0x4] %asi, %o1 180do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */ 18139: ldswa [%o1 + 0x0] %asi, %o0 182 sethi %hi(sys_recvfrom), %g1 18340: lduwa [%o1 + 0x8] %asi, %o2 18441: lduwa [%o1 + 0xc] %asi, %o3 18542: lduwa [%o1 + 0x10] %asi, %o4 18643: lduwa [%o1 + 0x14] %asi, %o5 187 jmpl %g1 + %lo(sys_recvfrom), %g0 18844: lduwa [%o1 + 0x4] %asi, %o1 189do_sys_shutdown: /* sys_shutdown(int, int) */ 19045: ldswa [%o1 + 0x0] %asi, %o0 191 sethi %hi(sys_shutdown), %g1 192 jmpl %g1 + %lo(sys_shutdown), %g0 19346: ldswa [%o1 + 0x4] %asi, %o1 194 nop 195 nop 196 nop 197 nop 198do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */ 19947: ldswa [%o1 + 0x0] %asi, %o0 200 sethi %hi(compat_sys_setsockopt), %g1 20148: ldswa [%o1 + 0x8] %asi, %o2 20249: lduwa [%o1 + 0xc] %asi, %o3 20350: ldswa [%o1 + 0x10] %asi, %o4 204 jmpl %g1 + %lo(compat_sys_setsockopt), %g0 20551: ldswa [%o1 + 0x4] %asi, %o1 206 nop 207do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */ 20852: ldswa [%o1 + 0x0] %asi, %o0 209 sethi %hi(compat_sys_getsockopt), %g1 21053: ldswa [%o1 + 0x8] %asi, %o2 21154: lduwa [%o1 + 0xc] %asi, %o3 21255: lduwa [%o1 + 0x10] %asi, %o4 213 jmpl %g1 + %lo(compat_sys_getsockopt), %g0 21456: ldswa [%o1 + 0x4] %asi, %o1 215 nop 216do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */ 21757: ldswa [%o1 + 0x0] %asi, %o0 218 sethi %hi(compat_sys_sendmsg), %g1 21958: lduwa [%o1 + 0x8] %asi, %o2 220 jmpl %g1 + %lo(compat_sys_sendmsg), %g0 22159: lduwa [%o1 + 0x4] %asi, %o1 222 nop 223 nop 224 nop 225do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */ 22660: ldswa [%o1 + 0x0] %asi, %o0 227 sethi %hi(compat_sys_recvmsg), %g1 22861: lduwa [%o1 + 0x8] %asi, %o2 229 jmpl %g1 + %lo(compat_sys_recvmsg), %g0 23062: lduwa [%o1 + 0x4] %asi, %o1 231 nop 232 nop 233 nop 234do_sys_accept4: /* sys_accept4(int, struct sockaddr *, int *, int) */ 23563: ldswa [%o1 + 0x0] %asi, %o0 236 sethi %hi(sys_accept4), %g1 23764: lduwa [%o1 + 0x8] %asi, %o2 23865: ldswa [%o1 + 0xc] %asi, %o3 239 jmpl %g1 + %lo(sys_accept4), %g0 24066: lduwa [%o1 + 0x4] %asi, %o1 241 nop 242 nop 243 244 .globl sys32_fanotify_mark 245sys32_fanotify_mark: 246 sethi %hi(sys_fanotify_mark), %g1 247 sllx %o2, 32, %o2 248 or %o2, %o3, %o2 249 mov %o4, %o3 250 jmpl %g1 + %lo(sys_fanotify_mark), %g0 251 mov %o5, %o4 252 253 .section __ex_table,"a" 254 .align 4 255 .word 1b, __retl_efault, 2b, __retl_efault 256 .word 3b, __retl_efault, 4b, __retl_efault 257 .word 5b, __retl_efault, 6b, __retl_efault 258 .word 7b, __retl_efault, 8b, __retl_efault 259 .word 9b, __retl_efault, 10b, __retl_efault 260 .word 11b, __retl_efault, 12b, __retl_efault 261 .word 13b, __retl_efault, 14b, __retl_efault 262 .word 15b, __retl_efault, 16b, __retl_efault 263 .word 17b, __retl_efault, 18b, __retl_efault 264 .word 19b, __retl_efault, 20b, __retl_efault 265 .word 21b, __retl_efault, 22b, __retl_efault 266 .word 23b, __retl_efault, 24b, __retl_efault 267 .word 25b, __retl_efault, 26b, __retl_efault 268 .word 27b, __retl_efault, 28b, __retl_efault 269 .word 29b, __retl_efault, 30b, __retl_efault 270 .word 31b, __retl_efault, 32b, __retl_efault 271 .word 33b, __retl_efault, 34b, __retl_efault 272 .word 35b, __retl_efault, 36b, __retl_efault 273 .word 37b, __retl_efault, 38b, __retl_efault 274 .word 39b, __retl_efault, 40b, __retl_efault 275 .word 41b, __retl_efault, 42b, __retl_efault 276 .word 43b, __retl_efault, 44b, __retl_efault 277 .word 45b, __retl_efault, 46b, __retl_efault 278 .word 47b, __retl_efault, 48b, __retl_efault 279 .word 49b, __retl_efault, 50b, __retl_efault 280 .word 51b, __retl_efault, 52b, __retl_efault 281 .word 53b, __retl_efault, 54b, __retl_efault 282 .word 55b, __retl_efault, 56b, __retl_efault 283 .word 57b, __retl_efault, 58b, __retl_efault 284 .word 59b, __retl_efault, 60b, __retl_efault 285 .word 61b, __retl_efault, 62b, __retl_efault 286 .word 63b, __retl_efault, 64b, __retl_efault 287 .word 65b, __retl_efault, 66b, __retl_efault 288 .previous 289