1 /* SPDX-License-Identifier: GPL-2.0 */ 1 /* SPDX-License-Identifier: GPL-2.0 */
2 /* 2 /*
3 * sys32.S: I-cache tricks for 32-bit compatib 3 * sys32.S: I-cache tricks for 32-bit compatibility layer simple
4 * conversions. 4 * conversions.
5 * 5 *
6 * Copyright (C) 1997 David S. Miller (davem@c 6 * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
7 * Copyright (C) 1998 Jakub Jelinek (jj@ultr 7 * Copyright (C) 1998 Jakub Jelinek (jj@ultra.linux.cz)
8 */ 8 */
9 9
10 #include <asm/errno.h> 10 #include <asm/errno.h>
11 11
12 /* NOTE: call as jump breaks return stack, we 12 /* NOTE: call as jump breaks return stack, we have to avoid that */
13 13
14 .text 14 .text
15 15
16 .globl sys32_mmap2 16 .globl sys32_mmap2
17 sys32_mmap2: 17 sys32_mmap2:
18 sethi %hi(sys_mmap), %g1 18 sethi %hi(sys_mmap), %g1
19 jmpl %g1 + %lo(sys_mmap), % 19 jmpl %g1 + %lo(sys_mmap), %g0
20 sllx %o5, 12, %o5 20 sllx %o5, 12, %o5
>> 21
>> 22 .align 32
>> 23 .globl sys32_socketcall
>> 24 sys32_socketcall: /* %o0=call, %o1=args */
>> 25 cmp %o0, 1
>> 26 bl,pn %xcc, do_einval
>> 27 cmp %o0, 18
>> 28 bg,pn %xcc, do_einval
>> 29 sub %o0, 1, %o0
>> 30 sllx %o0, 5, %o0
>> 31 sethi %hi(__socketcall_table_begin), %g2
>> 32 or %g2, %lo(__socketcall_table_begin), %g2
>> 33 jmpl %g2 + %o0, %g0
>> 34 nop
>> 35 do_einval:
>> 36 retl
>> 37 mov -EINVAL, %o0
>> 38
>> 39 .align 32
>> 40 __socketcall_table_begin:
>> 41
>> 42 /* Each entry is exactly 32 bytes. */
>> 43 do_sys_socket: /* sys_socket(int, int, int) */
>> 44 1: ldswa [%o1 + 0x0] %asi, %o0
>> 45 sethi %hi(sys_socket), %g1
>> 46 2: ldswa [%o1 + 0x8] %asi, %o2
>> 47 jmpl %g1 + %lo(sys_socket), %g0
>> 48 3: ldswa [%o1 + 0x4] %asi, %o1
>> 49 nop
>> 50 nop
>> 51 nop
>> 52 do_sys_bind: /* sys_bind(int fd, struct sockaddr *, int) */
>> 53 4: ldswa [%o1 + 0x0] %asi, %o0
>> 54 sethi %hi(sys_bind), %g1
>> 55 5: ldswa [%o1 + 0x8] %asi, %o2
>> 56 jmpl %g1 + %lo(sys_bind), %g0
>> 57 6: lduwa [%o1 + 0x4] %asi, %o1
>> 58 nop
>> 59 nop
>> 60 nop
>> 61 do_sys_connect: /* sys_connect(int, struct sockaddr *, int) */
>> 62 7: ldswa [%o1 + 0x0] %asi, %o0
>> 63 sethi %hi(sys_connect), %g1
>> 64 8: ldswa [%o1 + 0x8] %asi, %o2
>> 65 jmpl %g1 + %lo(sys_connect), %g0
>> 66 9: lduwa [%o1 + 0x4] %asi, %o1
>> 67 nop
>> 68 nop
>> 69 nop
>> 70 do_sys_listen: /* sys_listen(int, int) */
>> 71 10: ldswa [%o1 + 0x0] %asi, %o0
>> 72 sethi %hi(sys_listen), %g1
>> 73 jmpl %g1 + %lo(sys_listen), %g0
>> 74 11: ldswa [%o1 + 0x4] %asi, %o1
>> 75 nop
>> 76 nop
>> 77 nop
>> 78 nop
>> 79 do_sys_accept: /* sys_accept(int, struct sockaddr *, int *) */
>> 80 12: ldswa [%o1 + 0x0] %asi, %o0
>> 81 sethi %hi(sys_accept), %g1
>> 82 13: lduwa [%o1 + 0x8] %asi, %o2
>> 83 jmpl %g1 + %lo(sys_accept), %g0
>> 84 14: lduwa [%o1 + 0x4] %asi, %o1
>> 85 nop
>> 86 nop
>> 87 nop
>> 88 do_sys_getsockname: /* sys_getsockname(int, struct sockaddr *, int *) */
>> 89 15: ldswa [%o1 + 0x0] %asi, %o0
>> 90 sethi %hi(sys_getsockname), %g1
>> 91 16: lduwa [%o1 + 0x8] %asi, %o2
>> 92 jmpl %g1 + %lo(sys_getsockname), %g0
>> 93 17: lduwa [%o1 + 0x4] %asi, %o1
>> 94 nop
>> 95 nop
>> 96 nop
>> 97 do_sys_getpeername: /* sys_getpeername(int, struct sockaddr *, int *) */
>> 98 18: ldswa [%o1 + 0x0] %asi, %o0
>> 99 sethi %hi(sys_getpeername), %g1
>> 100 19: lduwa [%o1 + 0x8] %asi, %o2
>> 101 jmpl %g1 + %lo(sys_getpeername), %g0
>> 102 20: lduwa [%o1 + 0x4] %asi, %o1
>> 103 nop
>> 104 nop
>> 105 nop
>> 106 do_sys_socketpair: /* sys_socketpair(int, int, int, int *) */
>> 107 21: ldswa [%o1 + 0x0] %asi, %o0
>> 108 sethi %hi(sys_socketpair), %g1
>> 109 22: ldswa [%o1 + 0x8] %asi, %o2
>> 110 23: lduwa [%o1 + 0xc] %asi, %o3
>> 111 jmpl %g1 + %lo(sys_socketpair), %g0
>> 112 24: ldswa [%o1 + 0x4] %asi, %o1
>> 113 nop
>> 114 nop
>> 115 do_sys_send: /* sys_send(int, void *, size_t, unsigned int) */
>> 116 25: ldswa [%o1 + 0x0] %asi, %o0
>> 117 sethi %hi(sys_send), %g1
>> 118 26: lduwa [%o1 + 0x8] %asi, %o2
>> 119 27: lduwa [%o1 + 0xc] %asi, %o3
>> 120 jmpl %g1 + %lo(sys_send), %g0
>> 121 28: lduwa [%o1 + 0x4] %asi, %o1
>> 122 nop
>> 123 nop
>> 124 do_sys_recv: /* sys_recv(int, void *, size_t, unsigned int) */
>> 125 29: ldswa [%o1 + 0x0] %asi, %o0
>> 126 sethi %hi(sys_recv), %g1
>> 127 30: lduwa [%o1 + 0x8] %asi, %o2
>> 128 31: lduwa [%o1 + 0xc] %asi, %o3
>> 129 jmpl %g1 + %lo(sys_recv), %g0
>> 130 32: lduwa [%o1 + 0x4] %asi, %o1
>> 131 nop
>> 132 nop
>> 133 do_sys_sendto: /* sys_sendto(int, u32, compat_size_t, unsigned int, u32, int) */
>> 134 33: ldswa [%o1 + 0x0] %asi, %o0
>> 135 sethi %hi(sys_sendto), %g1
>> 136 34: lduwa [%o1 + 0x8] %asi, %o2
>> 137 35: lduwa [%o1 + 0xc] %asi, %o3
>> 138 36: lduwa [%o1 + 0x10] %asi, %o4
>> 139 37: ldswa [%o1 + 0x14] %asi, %o5
>> 140 jmpl %g1 + %lo(sys_sendto), %g0
>> 141 38: lduwa [%o1 + 0x4] %asi, %o1
>> 142 do_sys_recvfrom: /* sys_recvfrom(int, u32, compat_size_t, unsigned int, u32, u32) */
>> 143 39: ldswa [%o1 + 0x0] %asi, %o0
>> 144 sethi %hi(sys_recvfrom), %g1
>> 145 40: lduwa [%o1 + 0x8] %asi, %o2
>> 146 41: lduwa [%o1 + 0xc] %asi, %o3
>> 147 42: lduwa [%o1 + 0x10] %asi, %o4
>> 148 43: lduwa [%o1 + 0x14] %asi, %o5
>> 149 jmpl %g1 + %lo(sys_recvfrom), %g0
>> 150 44: lduwa [%o1 + 0x4] %asi, %o1
>> 151 do_sys_shutdown: /* sys_shutdown(int, int) */
>> 152 45: ldswa [%o1 + 0x0] %asi, %o0
>> 153 sethi %hi(sys_shutdown), %g1
>> 154 jmpl %g1 + %lo(sys_shutdown), %g0
>> 155 46: ldswa [%o1 + 0x4] %asi, %o1
>> 156 nop
>> 157 nop
>> 158 nop
>> 159 nop
>> 160 do_sys_setsockopt: /* compat_sys_setsockopt(int, int, int, char *, int) */
>> 161 47: ldswa [%o1 + 0x0] %asi, %o0
>> 162 sethi %hi(compat_sys_setsockopt), %g1
>> 163 48: ldswa [%o1 + 0x8] %asi, %o2
>> 164 49: lduwa [%o1 + 0xc] %asi, %o3
>> 165 50: ldswa [%o1 + 0x10] %asi, %o4
>> 166 jmpl %g1 + %lo(compat_sys_setsockopt), %g0
>> 167 51: ldswa [%o1 + 0x4] %asi, %o1
>> 168 nop
>> 169 do_sys_getsockopt: /* compat_sys_getsockopt(int, int, int, u32, u32) */
>> 170 52: ldswa [%o1 + 0x0] %asi, %o0
>> 171 sethi %hi(compat_sys_getsockopt), %g1
>> 172 53: ldswa [%o1 + 0x8] %asi, %o2
>> 173 54: lduwa [%o1 + 0xc] %asi, %o3
>> 174 55: lduwa [%o1 + 0x10] %asi, %o4
>> 175 jmpl %g1 + %lo(compat_sys_getsockopt), %g0
>> 176 56: ldswa [%o1 + 0x4] %asi, %o1
>> 177 nop
>> 178 do_sys_sendmsg: /* compat_sys_sendmsg(int, struct compat_msghdr *, unsigned int) */
>> 179 57: ldswa [%o1 + 0x0] %asi, %o0
>> 180 sethi %hi(compat_sys_sendmsg), %g1
>> 181 58: lduwa [%o1 + 0x8] %asi, %o2
>> 182 jmpl %g1 + %lo(compat_sys_sendmsg), %g0
>> 183 59: lduwa [%o1 + 0x4] %asi, %o1
>> 184 nop
>> 185 nop
>> 186 nop
>> 187 do_sys_recvmsg: /* compat_sys_recvmsg(int, struct compat_msghdr *, unsigned int) */
>> 188 60: ldswa [%o1 + 0x0] %asi, %o0
>> 189 sethi %hi(compat_sys_recvmsg), %g1
>> 190 61: lduwa [%o1 + 0x8] %asi, %o2
>> 191 jmpl %g1 + %lo(compat_sys_recvmsg), %g0
>> 192 62: lduwa [%o1 + 0x4] %asi, %o1
>> 193 nop
>> 194 nop
>> 195 nop
>> 196 do_sys_accept4: /* sys_accept4(int, struct sockaddr *, int *, int) */
>> 197 63: ldswa [%o1 + 0x0] %asi, %o0
>> 198 sethi %hi(sys_accept4), %g1
>> 199 64: lduwa [%o1 + 0x8] %asi, %o2
>> 200 65: ldswa [%o1 + 0xc] %asi, %o3
>> 201 jmpl %g1 + %lo(sys_accept4), %g0
>> 202 66: lduwa [%o1 + 0x4] %asi, %o1
>> 203 nop
>> 204 nop
>> 205
>> 206 .section __ex_table,"a"
>> 207 .align 4
>> 208 .word 1b, __retl_efault, 2b, __retl_efault
>> 209 .word 3b, __retl_efault, 4b, __retl_efault
>> 210 .word 5b, __retl_efault, 6b, __retl_efault
>> 211 .word 7b, __retl_efault, 8b, __retl_efault
>> 212 .word 9b, __retl_efault, 10b, __retl_efault
>> 213 .word 11b, __retl_efault, 12b, __retl_efault
>> 214 .word 13b, __retl_efault, 14b, __retl_efault
>> 215 .word 15b, __retl_efault, 16b, __retl_efault
>> 216 .word 17b, __retl_efault, 18b, __retl_efault
>> 217 .word 19b, __retl_efault, 20b, __retl_efault
>> 218 .word 21b, __retl_efault, 22b, __retl_efault
>> 219 .word 23b, __retl_efault, 24b, __retl_efault
>> 220 .word 25b, __retl_efault, 26b, __retl_efault
>> 221 .word 27b, __retl_efault, 28b, __retl_efault
>> 222 .word 29b, __retl_efault, 30b, __retl_efault
>> 223 .word 31b, __retl_efault, 32b, __retl_efault
>> 224 .word 33b, __retl_efault, 34b, __retl_efault
>> 225 .word 35b, __retl_efault, 36b, __retl_efault
>> 226 .word 37b, __retl_efault, 38b, __retl_efault
>> 227 .word 39b, __retl_efault, 40b, __retl_efault
>> 228 .word 41b, __retl_efault, 42b, __retl_efault
>> 229 .word 43b, __retl_efault, 44b, __retl_efault
>> 230 .word 45b, __retl_efault, 46b, __retl_efault
>> 231 .word 47b, __retl_efault, 48b, __retl_efault
>> 232 .word 49b, __retl_efault, 50b, __retl_efault
>> 233 .word 51b, __retl_efault, 52b, __retl_efault
>> 234 .word 53b, __retl_efault, 54b, __retl_efault
>> 235 .word 55b, __retl_efault, 56b, __retl_efault
>> 236 .word 57b, __retl_efault, 58b, __retl_efault
>> 237 .word 59b, __retl_efault, 60b, __retl_efault
>> 238 .word 61b, __retl_efault, 62b, __retl_efault
>> 239 .word 63b, __retl_efault, 64b, __retl_efault
>> 240 .word 65b, __retl_efault, 66b, __retl_efault
>> 241 .previous
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