| 1 | /* Target-dependent code for s390. |
| 2 | |
| 3 | Copyright (C) 2003-2019 Free Software Foundation, Inc. |
| 4 | |
| 5 | This file is part of GDB. |
| 6 | |
| 7 | This program is free software; you can redistribute it and/or modify |
| 8 | it under the terms of the GNU General Public License as published by |
| 9 | the Free Software Foundation; either version 3 of the License, or |
| 10 | (at your option) any later version. |
| 11 | |
| 12 | This program is distributed in the hope that it will be useful, |
| 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | GNU General Public License for more details. |
| 16 | |
| 17 | You should have received a copy of the GNU General Public License |
| 18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 19 | |
| 20 | #ifndef S390_TDEP_H |
| 21 | #define S390_TDEP_H |
| 22 | |
| 23 | #include "prologue-value.h" |
| 24 | |
| 25 | enum s390_abi_kind |
| 26 | { |
| 27 | ABI_NONE, |
| 28 | ABI_LINUX_S390, |
| 29 | ABI_LINUX_ZSERIES |
| 30 | }; |
| 31 | |
| 32 | enum s390_vector_abi_kind |
| 33 | { |
| 34 | S390_VECTOR_ABI_NONE, |
| 35 | S390_VECTOR_ABI_128 |
| 36 | }; |
| 37 | |
| 38 | /* The tdep structure. */ |
| 39 | |
| 40 | struct gdbarch_tdep |
| 41 | { |
| 42 | /* Target description. */ |
| 43 | const struct target_desc *tdesc; |
| 44 | |
| 45 | /* ABI version. */ |
| 46 | enum s390_abi_kind abi; |
| 47 | |
| 48 | /* Vector ABI. */ |
| 49 | enum s390_vector_abi_kind vector_abi; |
| 50 | |
| 51 | /* Pseudo register numbers. */ |
| 52 | int gpr_full_regnum; |
| 53 | int pc_regnum; |
| 54 | int cc_regnum; |
| 55 | int v0_full_regnum; |
| 56 | |
| 57 | bool have_upper; |
| 58 | bool have_linux_v1; |
| 59 | bool have_linux_v2; |
| 60 | bool have_tdb; |
| 61 | bool have_vx; |
| 62 | bool have_gs; |
| 63 | |
| 64 | /* Hook to record OS specific systemcall. */ |
| 65 | int (*s390_syscall_record) (struct regcache *regcache, LONGEST svc_number); |
| 66 | }; |
| 67 | |
| 68 | /* Decoding S/390 instructions. */ |
| 69 | |
| 70 | /* Named opcode values for the S/390 instructions we recognize. Some |
| 71 | instructions have their opcode split across two fields; those are the |
| 72 | op1_* and op2_* enums. */ |
| 73 | |
| 74 | enum |
| 75 | { |
| 76 | op1_lhi = 0xa7, op2_lhi = 0x08, |
| 77 | op1_lghi = 0xa7, op2_lghi = 0x09, |
| 78 | op1_lgfi = 0xc0, op2_lgfi = 0x01, |
| 79 | op_lr = 0x18, |
| 80 | op_lgr = 0xb904, |
| 81 | op_l = 0x58, |
| 82 | op1_ly = 0xe3, op2_ly = 0x58, |
| 83 | op1_lg = 0xe3, op2_lg = 0x04, |
| 84 | op_lm = 0x98, |
| 85 | op1_lmy = 0xeb, op2_lmy = 0x98, |
| 86 | op1_lmg = 0xeb, op2_lmg = 0x04, |
| 87 | op_st = 0x50, |
| 88 | op1_sty = 0xe3, op2_sty = 0x50, |
| 89 | op1_stg = 0xe3, op2_stg = 0x24, |
| 90 | op_std = 0x60, |
| 91 | op_stm = 0x90, |
| 92 | op1_stmy = 0xeb, op2_stmy = 0x90, |
| 93 | op1_stmg = 0xeb, op2_stmg = 0x24, |
| 94 | op1_aghi = 0xa7, op2_aghi = 0x0b, |
| 95 | op1_ahi = 0xa7, op2_ahi = 0x0a, |
| 96 | op1_agfi = 0xc2, op2_agfi = 0x08, |
| 97 | op1_afi = 0xc2, op2_afi = 0x09, |
| 98 | op1_algfi= 0xc2, op2_algfi= 0x0a, |
| 99 | op1_alfi = 0xc2, op2_alfi = 0x0b, |
| 100 | op_ar = 0x1a, |
| 101 | op_agr = 0xb908, |
| 102 | op_a = 0x5a, |
| 103 | op1_ay = 0xe3, op2_ay = 0x5a, |
| 104 | op1_ag = 0xe3, op2_ag = 0x08, |
| 105 | op1_slgfi= 0xc2, op2_slgfi= 0x04, |
| 106 | op1_slfi = 0xc2, op2_slfi = 0x05, |
| 107 | op_sr = 0x1b, |
| 108 | op_sgr = 0xb909, |
| 109 | op_s = 0x5b, |
| 110 | op1_sy = 0xe3, op2_sy = 0x5b, |
| 111 | op1_sg = 0xe3, op2_sg = 0x09, |
| 112 | op_nr = 0x14, |
| 113 | op_ngr = 0xb980, |
| 114 | op_la = 0x41, |
| 115 | op1_lay = 0xe3, op2_lay = 0x71, |
| 116 | op1_larl = 0xc0, op2_larl = 0x00, |
| 117 | op_basr = 0x0d, |
| 118 | op_bas = 0x4d, |
| 119 | op_bcr = 0x07, |
| 120 | op_bc = 0x0d, |
| 121 | op_bctr = 0x06, |
| 122 | op_bctgr = 0xb946, |
| 123 | op_bct = 0x46, |
| 124 | op1_bctg = 0xe3, op2_bctg = 0x46, |
| 125 | op_bxh = 0x86, |
| 126 | op1_bxhg = 0xeb, op2_bxhg = 0x44, |
| 127 | op_bxle = 0x87, |
| 128 | op1_bxleg= 0xeb, op2_bxleg= 0x45, |
| 129 | op1_bras = 0xa7, op2_bras = 0x05, |
| 130 | op1_brasl= 0xc0, op2_brasl= 0x05, |
| 131 | op1_brc = 0xa7, op2_brc = 0x04, |
| 132 | op1_brcl = 0xc0, op2_brcl = 0x04, |
| 133 | op1_brct = 0xa7, op2_brct = 0x06, |
| 134 | op1_brctg= 0xa7, op2_brctg= 0x07, |
| 135 | op_brxh = 0x84, |
| 136 | op1_brxhg= 0xec, op2_brxhg= 0x44, |
| 137 | op_brxle = 0x85, |
| 138 | op1_brxlg= 0xec, op2_brxlg= 0x45, |
| 139 | op_svc = 0x0a, |
| 140 | }; |
| 141 | |
| 142 | /* Hardware capabilities. */ |
| 143 | |
| 144 | #ifndef HWCAP_S390_HIGH_GPRS |
| 145 | #define HWCAP_S390_HIGH_GPRS 512 |
| 146 | #endif |
| 147 | |
| 148 | #ifndef HWCAP_S390_TE |
| 149 | #define HWCAP_S390_TE 1024 |
| 150 | #endif |
| 151 | |
| 152 | #ifndef HWCAP_S390_VX |
| 153 | #define HWCAP_S390_VX 2048 |
| 154 | #endif |
| 155 | |
| 156 | #ifndef HWCAP_S390_GS |
| 157 | #define HWCAP_S390_GS 16384 |
| 158 | #endif |
| 159 | |
| 160 | /* Register information. */ |
| 161 | |
| 162 | /* Program Status Word. */ |
| 163 | #define S390_PSWM_REGNUM 0 |
| 164 | #define S390_PSWA_REGNUM 1 |
| 165 | /* General Purpose Registers. */ |
| 166 | #define S390_R0_REGNUM 2 |
| 167 | #define S390_R1_REGNUM 3 |
| 168 | #define S390_R2_REGNUM 4 |
| 169 | #define S390_R3_REGNUM 5 |
| 170 | #define S390_R4_REGNUM 6 |
| 171 | #define S390_R5_REGNUM 7 |
| 172 | #define S390_R6_REGNUM 8 |
| 173 | #define S390_R7_REGNUM 9 |
| 174 | #define S390_R8_REGNUM 10 |
| 175 | #define S390_R9_REGNUM 11 |
| 176 | #define S390_R10_REGNUM 12 |
| 177 | #define S390_R11_REGNUM 13 |
| 178 | #define S390_R12_REGNUM 14 |
| 179 | #define S390_R13_REGNUM 15 |
| 180 | #define S390_R14_REGNUM 16 |
| 181 | #define S390_R15_REGNUM 17 |
| 182 | /* Access Registers. */ |
| 183 | #define S390_A0_REGNUM 18 |
| 184 | #define S390_A1_REGNUM 19 |
| 185 | #define S390_A2_REGNUM 20 |
| 186 | #define S390_A3_REGNUM 21 |
| 187 | #define S390_A4_REGNUM 22 |
| 188 | #define S390_A5_REGNUM 23 |
| 189 | #define S390_A6_REGNUM 24 |
| 190 | #define S390_A7_REGNUM 25 |
| 191 | #define S390_A8_REGNUM 26 |
| 192 | #define S390_A9_REGNUM 27 |
| 193 | #define S390_A10_REGNUM 28 |
| 194 | #define S390_A11_REGNUM 29 |
| 195 | #define S390_A12_REGNUM 30 |
| 196 | #define S390_A13_REGNUM 31 |
| 197 | #define S390_A14_REGNUM 32 |
| 198 | #define S390_A15_REGNUM 33 |
| 199 | /* Floating Point Control Word. */ |
| 200 | #define S390_FPC_REGNUM 34 |
| 201 | /* Floating Point Registers. */ |
| 202 | #define S390_F0_REGNUM 35 |
| 203 | #define S390_F1_REGNUM 36 |
| 204 | #define S390_F2_REGNUM 37 |
| 205 | #define S390_F3_REGNUM 38 |
| 206 | #define S390_F4_REGNUM 39 |
| 207 | #define S390_F5_REGNUM 40 |
| 208 | #define S390_F6_REGNUM 41 |
| 209 | #define S390_F7_REGNUM 42 |
| 210 | #define S390_F8_REGNUM 43 |
| 211 | #define S390_F9_REGNUM 44 |
| 212 | #define S390_F10_REGNUM 45 |
| 213 | #define S390_F11_REGNUM 46 |
| 214 | #define S390_F12_REGNUM 47 |
| 215 | #define S390_F13_REGNUM 48 |
| 216 | #define S390_F14_REGNUM 49 |
| 217 | #define S390_F15_REGNUM 50 |
| 218 | /* General Purpose Register Upper Halves. */ |
| 219 | #define S390_R0_UPPER_REGNUM 51 |
| 220 | #define S390_R1_UPPER_REGNUM 52 |
| 221 | #define S390_R2_UPPER_REGNUM 53 |
| 222 | #define S390_R3_UPPER_REGNUM 54 |
| 223 | #define S390_R4_UPPER_REGNUM 55 |
| 224 | #define S390_R5_UPPER_REGNUM 56 |
| 225 | #define S390_R6_UPPER_REGNUM 57 |
| 226 | #define S390_R7_UPPER_REGNUM 58 |
| 227 | #define S390_R8_UPPER_REGNUM 59 |
| 228 | #define S390_R9_UPPER_REGNUM 60 |
| 229 | #define S390_R10_UPPER_REGNUM 61 |
| 230 | #define S390_R11_UPPER_REGNUM 62 |
| 231 | #define S390_R12_UPPER_REGNUM 63 |
| 232 | #define S390_R13_UPPER_REGNUM 64 |
| 233 | #define S390_R14_UPPER_REGNUM 65 |
| 234 | #define S390_R15_UPPER_REGNUM 66 |
| 235 | /* GNU/Linux-specific optional registers. */ |
| 236 | #define S390_ORIG_R2_REGNUM 67 |
| 237 | #define S390_LAST_BREAK_REGNUM 68 |
| 238 | #define S390_SYSTEM_CALL_REGNUM 69 |
| 239 | /* Transaction diagnostic block. */ |
| 240 | #define S390_TDB_DWORD0_REGNUM 70 |
| 241 | #define S390_TDB_ABORT_CODE_REGNUM 71 |
| 242 | #define S390_TDB_CONFLICT_TOKEN_REGNUM 72 |
| 243 | #define S390_TDB_ATIA_REGNUM 73 |
| 244 | #define S390_TDB_R0_REGNUM 74 |
| 245 | #define S390_TDB_R1_REGNUM 75 |
| 246 | #define S390_TDB_R2_REGNUM 76 |
| 247 | #define S390_TDB_R3_REGNUM 77 |
| 248 | #define S390_TDB_R4_REGNUM 78 |
| 249 | #define S390_TDB_R5_REGNUM 79 |
| 250 | #define S390_TDB_R6_REGNUM 80 |
| 251 | #define S390_TDB_R7_REGNUM 81 |
| 252 | #define S390_TDB_R8_REGNUM 82 |
| 253 | #define S390_TDB_R9_REGNUM 83 |
| 254 | #define S390_TDB_R10_REGNUM 84 |
| 255 | #define S390_TDB_R11_REGNUM 85 |
| 256 | #define S390_TDB_R12_REGNUM 86 |
| 257 | #define S390_TDB_R13_REGNUM 87 |
| 258 | #define S390_TDB_R14_REGNUM 88 |
| 259 | #define S390_TDB_R15_REGNUM 89 |
| 260 | /* Vector registers. */ |
| 261 | #define S390_V0_LOWER_REGNUM 90 |
| 262 | #define S390_V1_LOWER_REGNUM 91 |
| 263 | #define S390_V2_LOWER_REGNUM 92 |
| 264 | #define S390_V3_LOWER_REGNUM 93 |
| 265 | #define S390_V4_LOWER_REGNUM 94 |
| 266 | #define S390_V5_LOWER_REGNUM 95 |
| 267 | #define S390_V6_LOWER_REGNUM 96 |
| 268 | #define S390_V7_LOWER_REGNUM 97 |
| 269 | #define S390_V8_LOWER_REGNUM 98 |
| 270 | #define S390_V9_LOWER_REGNUM 99 |
| 271 | #define S390_V10_LOWER_REGNUM 100 |
| 272 | #define S390_V11_LOWER_REGNUM 101 |
| 273 | #define S390_V12_LOWER_REGNUM 102 |
| 274 | #define S390_V13_LOWER_REGNUM 103 |
| 275 | #define S390_V14_LOWER_REGNUM 104 |
| 276 | #define S390_V15_LOWER_REGNUM 105 |
| 277 | #define S390_V16_REGNUM 106 |
| 278 | #define S390_V17_REGNUM 107 |
| 279 | #define S390_V18_REGNUM 108 |
| 280 | #define S390_V19_REGNUM 109 |
| 281 | #define S390_V20_REGNUM 110 |
| 282 | #define S390_V21_REGNUM 111 |
| 283 | #define S390_V22_REGNUM 112 |
| 284 | #define S390_V23_REGNUM 113 |
| 285 | #define S390_V24_REGNUM 114 |
| 286 | #define S390_V25_REGNUM 115 |
| 287 | #define S390_V26_REGNUM 116 |
| 288 | #define S390_V27_REGNUM 117 |
| 289 | #define S390_V28_REGNUM 118 |
| 290 | #define S390_V29_REGNUM 119 |
| 291 | #define S390_V30_REGNUM 120 |
| 292 | #define S390_V31_REGNUM 121 |
| 293 | #define S390_GSD_REGNUM 122 |
| 294 | #define S390_GSSM_REGNUM 123 |
| 295 | #define S390_GSEPLA_REGNUM 124 |
| 296 | #define S390_BC_GSD_REGNUM 125 |
| 297 | #define S390_BC_GSSM_REGNUM 126 |
| 298 | #define S390_BC_GSEPLA_REGNUM 127 |
| 299 | /* Total. */ |
| 300 | #define S390_NUM_REGS 128 |
| 301 | |
| 302 | #define S390_NUM_GPRS 16 |
| 303 | #define S390_NUM_FPRS 16 |
| 304 | |
| 305 | #define S390_MAX_INSTR_SIZE 6 |
| 306 | |
| 307 | /* Special register usage. */ |
| 308 | #define S390_SP_REGNUM S390_R15_REGNUM |
| 309 | #define S390_RETADDR_REGNUM S390_R14_REGNUM |
| 310 | #define S390_FRAME_REGNUM S390_R11_REGNUM |
| 311 | |
| 312 | /* Frame unwinding. */ |
| 313 | |
| 314 | extern struct value *s390_trad_frame_prev_register |
| 315 | (struct frame_info *this_frame, struct trad_frame_saved_reg saved_regs[], |
| 316 | int regnum); |
| 317 | |
| 318 | extern struct target_desc *tdesc_s390_linux32; |
| 319 | extern struct target_desc *tdesc_s390x_linux64; |
| 320 | |
| 321 | #endif /* S390_TDEP_H */ |