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) 51 52 .globl sys32_mmap2 53sys32_mmap2: 54 sethi %hi(sys_mmap), %g1 55 jmpl %g1 + %lo(sys_mmap), %g0 56 sllx %o5, 12, %o5 57 58 .align 32 59 .globl sys32_socketcall 60sys32_socketcall: /* %o0=call, %o1=args */ 61 cmp %o0, 1 62 bl,pn %xcc, do_einval 63 cmp %o0, 18 64 bg,pn %xcc, do_einval 65 sub %o0, 1, %o0 66 sllx %o0, 5, %o0 67 sethi %hi(__socketcall_table_begin), %g2 68 or %g2, %lo(__socketcall_table_begin), %g2 69 jmpl %g2 + %o0, %g0 70 nop 71do_einval: 72 retl 73 mov -EINVAL, %o0 74 75 .align 32 76__socketcall_table_begin: 77 78 /* Each entry is exactly 32 bytes. */ 79do_sys_socket: /* sys_socket(int, int, int) */ 801: ldswa [%o1 + 0x0] %asi, %o0 81 sethi %hi(sys_socket), %g1 822: ldswa [%o1 + 0x8] %asi, %o2 83 jmpl %g1 + %lo(sys_socket), %g0 843: ldswa [%o1 + 0x4] %asi, %o1 85 nop 86 nop 87 nop 88do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */ 894: ldswa [%o1 + 0x0] %asi, %o0 90 sethi %hi(sys_bind), %g1 915: ldswa [%o1 + 0x8] %asi, %o2 92 jmpl %g1 + %lo(sys_bind), %g0 936: lduwa [%o1 + 0x4] %asi, %o1 94 nop 95 nop 96 nop 97do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */ 987: ldswa [%o1 + 0x0] %asi, %o0 99 sethi %hi(sys_connect), %g1 1008: ldswa [%o1 + 0x8] %asi, %o2 101 jmpl %g1 + %lo(sys_connect), %g0 1029: lduwa [%o1 + 0x4] %asi, %o1 103 nop 104 nop 105 nop 106do_sys_listen: /* sys_listen(int, int) */ 10710: ldswa [%o1 + 0x0] %asi, %o0 108 sethi %hi(sys_listen), %g1 109 jmpl %g1 + %lo(sys_listen), %g0 11011: ldswa [%o1 + 0x4] %asi, %o1 111 nop 112 nop 113 nop 114 nop 115do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */ 11612: ldswa [%o1 + 0x0] %asi, %o0 117 sethi %hi(sys_accept), %g1 11813: lduwa [%o1 + 0x8] %asi, %o2 119 jmpl %g1 + %lo(sys_accept), %g0 12014: lduwa [%o1 + 0x4] %asi, %o1 121 nop 122 nop 123 nop 124do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */ 12515: ldswa [%o1 + 0x0] %asi, %o0 126 sethi %hi(sys_getsockname), %g1 12716: lduwa [%o1 + 0x8] %asi, %o2 128 jmpl %g1 + %lo(sys_getsockname), %g0 12917: lduwa [%o1 + 0x4] %asi, %o1 130 nop 131 nop 132 nop 133do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */ 13418: ldswa [%o1 + 0x0] %asi, %o0 135 sethi %hi(sys_getpeername), %g1 13619: lduwa [%o1 + 0x8] %asi, %o2 137 jmpl %g1 + %lo(sys_getpeername), %g0 13820: lduwa [%o1 + 0x4] %asi, %o1 139 nop 140 nop 141 nop 142do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */ 14321: ldswa [%o1 + 0x0] %asi, %o0 144 sethi %hi(sys_socketpair), %g1 14522: ldswa [%o1 + 0x8] %asi, %o2 14623: lduwa [%o1 + 0xc] %asi, %o3 147 jmpl %g1 + %lo(sys_socketpair), %g0 14824: ldswa [%o1 + 0x4] %asi, %o1 149 nop 150 nop 151do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */ 15225: ldswa [%o1 + 0x0] %asi, %o0 153 sethi %hi(sys_send), %g1 15426: lduwa [%o1 + 0x8] %asi, %o2 15527: lduwa [%o1 + 0xc] %asi, %o3 156 jmpl %g1 + %lo(sys_send), %g0 15728: lduwa [%o1 + 0x4] %asi, %o1 158 nop 159 nop 160do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */ 16129: ldswa [%o1 + 0x0] %asi, %o0 162 sethi %hi(sys_recv), %g1 16330: lduwa [%o1 + 0x8] %asi, %o2 16431: lduwa [%o1 + 0xc] %asi, %o3 165 jmpl %g1 + %lo(sys_recv), %g0 16632: lduwa [%o1 + 0x4] %asi, %o1 167 nop 168 nop 169do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */ 17033: ldswa [%o1 + 0x0] %asi, %o0 171 sethi %hi(sys_sendto), %g1 17234: lduwa [%o1 + 0x8] %asi, %o2 17335: lduwa [%o1 + 0xc] %asi, %o3 17436: lduwa [%o1 + 0x10] %asi, %o4 17537: ldswa [%o1 + 0x14] %asi, %o5 176 jmpl %g1 + %lo(sys_sendto), %g0 17738: lduwa [%o1 + 0x4] %asi, %o1 178do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */ 17939: ldswa [%o1 + 0x0] %asi, %o0 180 sethi %hi(sys_recvfrom), %g1 18140: lduwa [%o1 + 0x8] %asi, %o2 18241: lduwa [%o1 + 0xc] %asi, %o3 18342: lduwa [%o1 + 0x10] %asi, %o4 18443: lduwa [%o1 + 0x14] %asi, %o5 185 jmpl %g1 + %lo(sys_recvfrom), %g0 18644: lduwa [%o1 + 0x4] %asi, %o1 187do_sys_shutdown: /* sys_shutdown(int, int) */ 18845: ldswa [%o1 + 0x0] %asi, %o0 189 sethi %hi(sys_shutdown), %g1 190 jmpl %g1 + %lo(sys_shutdown), %g0 19146: ldswa [%o1 + 0x4] %asi, %o1 192 nop 193 nop 194 nop 195 nop 196do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */ 19747: ldswa [%o1 + 0x0] %asi, %o0 198 sethi %hi(compat_sys_setsockopt), %g1 19948: ldswa [%o1 + 0x8] %asi, %o2 20049: lduwa [%o1 + 0xc] %asi, %o3 20150: ldswa [%o1 + 0x10] %asi, %o4 202 jmpl %g1 + %lo(compat_sys_setsockopt), %g0 20351: ldswa [%o1 + 0x4] %asi, %o1 204 nop 205do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */ 20652: ldswa [%o1 + 0x0] %asi, %o0 207 sethi %hi(compat_sys_getsockopt), %g1 20853: ldswa [%o1 + 0x8] %asi, %o2 20954: lduwa [%o1 + 0xc] %asi, %o3 21055: lduwa [%o1 + 0x10] %asi, %o4 211 jmpl %g1 + %lo(compat_sys_getsockopt), %g0 21256: ldswa [%o1 + 0x4] %asi, %o1 213 nop 214do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */ 21557: ldswa [%o1 + 0x0] %asi, %o0 216 sethi %hi(compat_sys_sendmsg), %g1 21758: lduwa [%o1 + 0x8] %asi, %o2 218 jmpl %g1 + %lo(compat_sys_sendmsg), %g0 21959: lduwa [%o1 + 0x4] %asi, %o1 220 nop 221 nop 222 nop 223do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */ 22460: ldswa [%o1 + 0x0] %asi, %o0 225 sethi %hi(compat_sys_recvmsg), %g1 22661: lduwa [%o1 + 0x8] %asi, %o2 227 jmpl %g1 + %lo(compat_sys_recvmsg), %g0 22862: lduwa [%o1 + 0x4] %asi, %o1 229 nop 230 nop 231 nop 232do_sys_accept4: /* sys_accept4(int, struct sockaddr *, int *, int) */ 23363: ldswa [%o1 + 0x0] %asi, %o0 234 sethi %hi(sys_accept4), %g1 23564: lduwa [%o1 + 0x8] %asi, %o2 23665: ldswa [%o1 + 0xc] %asi, %o3 237 jmpl %g1 + %lo(sys_accept4), %g0 23866: lduwa [%o1 + 0x4] %asi, %o1 239 nop 240 nop 241 242 .section __ex_table,"a" 243 .align 4 244 .word 1b, __retl_efault, 2b, __retl_efault 245 .word 3b, __retl_efault, 4b, __retl_efault 246 .word 5b, __retl_efault, 6b, __retl_efault 247 .word 7b, __retl_efault, 8b, __retl_efault 248 .word 9b, __retl_efault, 10b, __retl_efault 249 .word 11b, __retl_efault, 12b, __retl_efault 250 .word 13b, __retl_efault, 14b, __retl_efault 251 .word 15b, __retl_efault, 16b, __retl_efault 252 .word 17b, __retl_efault, 18b, __retl_efault 253 .word 19b, __retl_efault, 20b, __retl_efault 254 .word 21b, __retl_efault, 22b, __retl_efault 255 .word 23b, __retl_efault, 24b, __retl_efault 256 .word 25b, __retl_efault, 26b, __retl_efault 257 .word 27b, __retl_efault, 28b, __retl_efault 258 .word 29b, __retl_efault, 30b, __retl_efault 259 .word 31b, __retl_efault, 32b, __retl_efault 260 .word 33b, __retl_efault, 34b, __retl_efault 261 .word 35b, __retl_efault, 36b, __retl_efault 262 .word 37b, __retl_efault, 38b, __retl_efault 263 .word 39b, __retl_efault, 40b, __retl_efault 264 .word 41b, __retl_efault, 42b, __retl_efault 265 .word 43b, __retl_efault, 44b, __retl_efault 266 .word 45b, __retl_efault, 46b, __retl_efault 267 .word 47b, __retl_efault, 48b, __retl_efault 268 .word 49b, __retl_efault, 50b, __retl_efault 269 .word 51b, __retl_efault, 52b, __retl_efault 270 .word 53b, __retl_efault, 54b, __retl_efault 271 .word 55b, __retl_efault, 56b, __retl_efault 272 .word 57b, __retl_efault, 58b, __retl_efault 273 .word 59b, __retl_efault, 60b, __retl_efault 274 .word 61b, __retl_efault, 62b, __retl_efault 275 .word 63b, __retl_efault, 64b, __retl_efault 276 .word 65b, __retl_efault, 66b, __retl_efault 277 .previous 278