1/* SPDX-License-Identifier: GPL-2.0 */ 2/* 3 * sys32.S: I-cache tricks for 32-bit compatibility layer simple 4 * conversions. 5 * 6 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu) 7 * Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz) 8 */ 9 10#include <asm/errno.h> 11 12/* NOTE: call as jump breaks return stack, we have to avoid that */ 13 14 .text 15 16#define SIGN1(STUB,SYSCALL,REG1) \ 17 .align 32; \ 18 .globl STUB; \ 19STUB: sethi %hi(SYSCALL), %g1; \ 20 jmpl %g1 + %lo(SYSCALL), %g0; \ 21 sra REG1, 0, REG1 22 23#define SIGN2(STUB,SYSCALL,REG1,REG2) \ 24 .align 32; \ 25 .globl STUB; \ 26STUB: sethi %hi(SYSCALL), %g1; \ 27 sra REG1, 0, REG1; \ 28 jmpl %g1 + %lo(SYSCALL), %g0; \ 29 sra REG2, 0, REG2 30 31#define SIGN3(STUB,SYSCALL,REG1,REG2,REG3) \ 32 .align 32; \ 33 .globl STUB; \ 34STUB: sra REG1, 0, REG1; \ 35 sethi %hi(SYSCALL), %g1; \ 36 sra REG2, 0, REG2; \ 37 jmpl %g1 + %lo(SYSCALL), %g0; \ 38 sra REG3, 0, REG3 39 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) 43 44 .globl sys32_mmap2 45sys32_mmap2: 46 sethi %hi(sys_mmap), %g1 47 jmpl %g1 + %lo(sys_mmap), %g0 48 sllx %o5, 12, %o5 49 50 .align 32 51 .globl sys32_socketcall 52sys32_socketcall: /* %o0=call, %o1=args */ 53 cmp %o0, 1 54 bl,pn %xcc, do_einval 55 cmp %o0, 18 56 bg,pn %xcc, do_einval 57 sub %o0, 1, %o0 58 sllx %o0, 5, %o0 59 sethi %hi(__socketcall_table_begin), %g2 60 or %g2, %lo(__socketcall_table_begin), %g2 61 jmpl %g2 + %o0, %g0 62 nop 63do_einval: 64 retl 65 mov -EINVAL, %o0 66 67 .align 32 68__socketcall_table_begin: 69 70 /* Each entry is exactly 32 bytes. */ 71do_sys_socket: /* sys_socket(int, int, int) */ 721: ldswa [%o1 + 0x0] %asi, %o0 73 sethi %hi(sys_socket), %g1 742: ldswa [%o1 + 0x8] %asi, %o2 75 jmpl %g1 + %lo(sys_socket), %g0 763: ldswa [%o1 + 0x4] %asi, %o1 77 nop 78 nop 79 nop 80do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */ 814: ldswa [%o1 + 0x0] %asi, %o0 82 sethi %hi(sys_bind), %g1 835: ldswa [%o1 + 0x8] %asi, %o2 84 jmpl %g1 + %lo(sys_bind), %g0 856: lduwa [%o1 + 0x4] %asi, %o1 86 nop 87 nop 88 nop 89do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */ 907: ldswa [%o1 + 0x0] %asi, %o0 91 sethi %hi(sys_connect), %g1 928: ldswa [%o1 + 0x8] %asi, %o2 93 jmpl %g1 + %lo(sys_connect), %g0 949: lduwa [%o1 + 0x4] %asi, %o1 95 nop 96 nop 97 nop 98do_sys_listen: /* sys_listen(int, int) */ 9910: ldswa [%o1 + 0x0] %asi, %o0 100 sethi %hi(sys_listen), %g1 101 jmpl %g1 + %lo(sys_listen), %g0 10211: ldswa [%o1 + 0x4] %asi, %o1 103 nop 104 nop 105 nop 106 nop 107do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */ 10812: ldswa [%o1 + 0x0] %asi, %o0 109 sethi %hi(sys_accept), %g1 11013: lduwa [%o1 + 0x8] %asi, %o2 111 jmpl %g1 + %lo(sys_accept), %g0 11214: lduwa [%o1 + 0x4] %asi, %o1 113 nop 114 nop 115 nop 116do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */ 11715: ldswa [%o1 + 0x0] %asi, %o0 118 sethi %hi(sys_getsockname), %g1 11916: lduwa [%o1 + 0x8] %asi, %o2 120 jmpl %g1 + %lo(sys_getsockname), %g0 12117: lduwa [%o1 + 0x4] %asi, %o1 122 nop 123 nop 124 nop 125do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */ 12618: ldswa [%o1 + 0x0] %asi, %o0 127 sethi %hi(sys_getpeername), %g1 12819: lduwa [%o1 + 0x8] %asi, %o2 129 jmpl %g1 + %lo(sys_getpeername), %g0 13020: lduwa [%o1 + 0x4] %asi, %o1 131 nop 132 nop 133 nop 134do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */ 13521: ldswa [%o1 + 0x0] %asi, %o0 136 sethi %hi(sys_socketpair), %g1 13722: ldswa [%o1 + 0x8] %asi, %o2 13823: lduwa [%o1 + 0xc] %asi, %o3 139 jmpl %g1 + %lo(sys_socketpair), %g0 14024: ldswa [%o1 + 0x4] %asi, %o1 141 nop 142 nop 143do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */ 14425: ldswa [%o1 + 0x0] %asi, %o0 145 sethi %hi(sys_send), %g1 14626: lduwa [%o1 + 0x8] %asi, %o2 14727: lduwa [%o1 + 0xc] %asi, %o3 148 jmpl %g1 + %lo(sys_send), %g0 14928: lduwa [%o1 + 0x4] %asi, %o1 150 nop 151 nop 152do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */ 15329: ldswa [%o1 + 0x0] %asi, %o0 154 sethi %hi(sys_recv), %g1 15530: lduwa [%o1 + 0x8] %asi, %o2 15631: lduwa [%o1 + 0xc] %asi, %o3 157 jmpl %g1 + %lo(sys_recv), %g0 15832: lduwa [%o1 + 0x4] %asi, %o1 159 nop 160 nop 161do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */ 16233: ldswa [%o1 + 0x0] %asi, %o0 163 sethi %hi(sys_sendto), %g1 16434: lduwa [%o1 + 0x8] %asi, %o2 16535: lduwa [%o1 + 0xc] %asi, %o3 16636: lduwa [%o1 + 0x10] %asi, %o4 16737: ldswa [%o1 + 0x14] %asi, %o5 168 jmpl %g1 + %lo(sys_sendto), %g0 16938: lduwa [%o1 + 0x4] %asi, %o1 170do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */ 17139: ldswa [%o1 + 0x0] %asi, %o0 172 sethi %hi(sys_recvfrom), %g1 17340: lduwa [%o1 + 0x8] %asi, %o2 17441: lduwa [%o1 + 0xc] %asi, %o3 17542: lduwa [%o1 + 0x10] %asi, %o4 17643: lduwa [%o1 + 0x14] %asi, %o5 177 jmpl %g1 + %lo(sys_recvfrom), %g0 17844: lduwa [%o1 + 0x4] %asi, %o1 179do_sys_shutdown: /* sys_shutdown(int, int) */ 18045: ldswa [%o1 + 0x0] %asi, %o0 181 sethi %hi(sys_shutdown), %g1 182 jmpl %g1 + %lo(sys_shutdown), %g0 18346: ldswa [%o1 + 0x4] %asi, %o1 184 nop 185 nop 186 nop 187 nop 188do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */ 18947: ldswa [%o1 + 0x0] %asi, %o0 190 sethi %hi(compat_sys_setsockopt), %g1 19148: ldswa [%o1 + 0x8] %asi, %o2 19249: lduwa [%o1 + 0xc] %asi, %o3 19350: ldswa [%o1 + 0x10] %asi, %o4 194 jmpl %g1 + %lo(compat_sys_setsockopt), %g0 19551: ldswa [%o1 + 0x4] %asi, %o1 196 nop 197do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */ 19852: ldswa [%o1 + 0x0] %asi, %o0 199 sethi %hi(compat_sys_getsockopt), %g1 20053: ldswa [%o1 + 0x8] %asi, %o2 20154: lduwa [%o1 + 0xc] %asi, %o3 20255: lduwa [%o1 + 0x10] %asi, %o4 203 jmpl %g1 + %lo(compat_sys_getsockopt), %g0 20456: ldswa [%o1 + 0x4] %asi, %o1 205 nop 206do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */ 20757: ldswa [%o1 + 0x0] %asi, %o0 208 sethi %hi(compat_sys_sendmsg), %g1 20958: lduwa [%o1 + 0x8] %asi, %o2 210 jmpl %g1 + %lo(compat_sys_sendmsg), %g0 21159: lduwa [%o1 + 0x4] %asi, %o1 212 nop 213 nop 214 nop 215do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */ 21660: ldswa [%o1 + 0x0] %asi, %o0 217 sethi %hi(compat_sys_recvmsg), %g1 21861: lduwa [%o1 + 0x8] %asi, %o2 219 jmpl %g1 + %lo(compat_sys_recvmsg), %g0 22062: lduwa [%o1 + 0x4] %asi, %o1 221 nop 222 nop 223 nop 224do_sys_accept4: /* sys_accept4(int, struct sockaddr *, int *, int) */ 22563: ldswa [%o1 + 0x0] %asi, %o0 226 sethi %hi(sys_accept4), %g1 22764: lduwa [%o1 + 0x8] %asi, %o2 22865: ldswa [%o1 + 0xc] %asi, %o3 229 jmpl %g1 + %lo(sys_accept4), %g0 23066: lduwa [%o1 + 0x4] %asi, %o1 231 nop 232 nop 233 234 .section __ex_table,"a" 235 .align 4 236 .word 1b, __retl_efault, 2b, __retl_efault 237 .word 3b, __retl_efault, 4b, __retl_efault 238 .word 5b, __retl_efault, 6b, __retl_efault 239 .word 7b, __retl_efault, 8b, __retl_efault 240 .word 9b, __retl_efault, 10b, __retl_efault 241 .word 11b, __retl_efault, 12b, __retl_efault 242 .word 13b, __retl_efault, 14b, __retl_efault 243 .word 15b, __retl_efault, 16b, __retl_efault 244 .word 17b, __retl_efault, 18b, __retl_efault 245 .word 19b, __retl_efault, 20b, __retl_efault 246 .word 21b, __retl_efault, 22b, __retl_efault 247 .word 23b, __retl_efault, 24b, __retl_efault 248 .word 25b, __retl_efault, 26b, __retl_efault 249 .word 27b, __retl_efault, 28b, __retl_efault 250 .word 29b, __retl_efault, 30b, __retl_efault 251 .word 31b, __retl_efault, 32b, __retl_efault 252 .word 33b, __retl_efault, 34b, __retl_efault 253 .word 35b, __retl_efault, 36b, __retl_efault 254 .word 37b, __retl_efault, 38b, __retl_efault 255 .word 39b, __retl_efault, 40b, __retl_efault 256 .word 41b, __retl_efault, 42b, __retl_efault 257 .word 43b, __retl_efault, 44b, __retl_efault 258 .word 45b, __retl_efault, 46b, __retl_efault 259 .word 47b, __retl_efault, 48b, __retl_efault 260 .word 49b, __retl_efault, 50b, __retl_efault 261 .word 51b, __retl_efault, 52b, __retl_efault 262 .word 53b, __retl_efault, 54b, __retl_efault 263 .word 55b, __retl_efault, 56b, __retl_efault 264 .word 57b, __retl_efault, 58b, __retl_efault 265 .word 59b, __retl_efault, 60b, __retl_efault 266 .word 61b, __retl_efault, 62b, __retl_efault 267 .word 63b, __retl_efault, 64b, __retl_efault 268 .word 65b, __retl_efault, 66b, __retl_efault 269 .previous 270