| 1 | /* The common simulator framework for GDB, the GNU Debugger. |
| 2 | |
| 3 | Copyright 2002-2013 Free Software Foundation, Inc. |
| 4 | |
| 5 | Contributed by Andrew Cagney and Red Hat. |
| 6 | |
| 7 | This file is part of GDB. |
| 8 | |
| 9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by |
| 11 | the Free Software Foundation; either version 3 of the License, or |
| 12 | (at your option) any later version. |
| 13 | |
| 14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | GNU General Public License for more details. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License |
| 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 21 | |
| 22 | |
| 23 | #include "sim-main.h" |
| 24 | #include "sim-assert.h" |
| 25 | #include "bfd.h" |
| 26 | |
| 27 | |
| 28 | int current_host_byte_order; |
| 29 | int current_target_byte_order; |
| 30 | int current_stdio; |
| 31 | |
| 32 | enum sim_alignments current_alignment; |
| 33 | |
| 34 | #if defined (WITH_FLOATING_POINT) |
| 35 | int current_floating_point; |
| 36 | #endif |
| 37 | |
| 38 | |
| 39 | |
| 40 | /* map a byte order onto a textual string */ |
| 41 | |
| 42 | static const char * |
| 43 | config_byte_order_to_a (int byte_order) |
| 44 | { |
| 45 | switch (byte_order) |
| 46 | { |
| 47 | case LITTLE_ENDIAN: |
| 48 | return "LITTLE_ENDIAN"; |
| 49 | case BIG_ENDIAN: |
| 50 | return "BIG_ENDIAN"; |
| 51 | case 0: |
| 52 | return "0"; |
| 53 | } |
| 54 | return "UNKNOWN"; |
| 55 | } |
| 56 | |
| 57 | |
| 58 | static const char * |
| 59 | config_stdio_to_a (int stdio) |
| 60 | { |
| 61 | switch (stdio) |
| 62 | { |
| 63 | case DONT_USE_STDIO: |
| 64 | return "DONT_USE_STDIO"; |
| 65 | case DO_USE_STDIO: |
| 66 | return "DO_USE_STDIO"; |
| 67 | case 0: |
| 68 | return "0"; |
| 69 | } |
| 70 | return "UNKNOWN"; |
| 71 | } |
| 72 | |
| 73 | |
| 74 | static const char * |
| 75 | config_environment_to_a (enum sim_environment environment) |
| 76 | { |
| 77 | switch (environment) |
| 78 | { |
| 79 | case ALL_ENVIRONMENT: |
| 80 | return "ALL_ENVIRONMENT"; |
| 81 | case USER_ENVIRONMENT: |
| 82 | return "USER_ENVIRONMENT"; |
| 83 | case VIRTUAL_ENVIRONMENT: |
| 84 | return "VIRTUAL_ENVIRONMENT"; |
| 85 | case OPERATING_ENVIRONMENT: |
| 86 | return "OPERATING_ENVIRONMENT"; |
| 87 | } |
| 88 | return "UNKNOWN"; |
| 89 | } |
| 90 | |
| 91 | |
| 92 | static const char * |
| 93 | config_alignment_to_a (enum sim_alignments alignment) |
| 94 | { |
| 95 | switch (alignment) |
| 96 | { |
| 97 | case MIXED_ALIGNMENT: |
| 98 | return "MIXED_ALIGNMENT"; |
| 99 | case NONSTRICT_ALIGNMENT: |
| 100 | return "NONSTRICT_ALIGNMENT"; |
| 101 | case STRICT_ALIGNMENT: |
| 102 | return "STRICT_ALIGNMENT"; |
| 103 | case FORCED_ALIGNMENT: |
| 104 | return "FORCED_ALIGNMENT"; |
| 105 | } |
| 106 | return "UNKNOWN"; |
| 107 | } |
| 108 | |
| 109 | |
| 110 | #if defined (WITH_FLOATING_POINT) |
| 111 | static const char * |
| 112 | config_floating_point_to_a (int floating_point) |
| 113 | { |
| 114 | switch (floating_point) |
| 115 | { |
| 116 | case SOFT_FLOATING_POINT: |
| 117 | return "SOFT_FLOATING_POINT"; |
| 118 | case HARD_FLOATING_POINT: |
| 119 | return "HARD_FLOATING_POINT"; |
| 120 | case 0: |
| 121 | return "0"; |
| 122 | } |
| 123 | return "UNKNOWN"; |
| 124 | } |
| 125 | #endif |
| 126 | |
| 127 | /* Set the default environment, prior to parsing argv. */ |
| 128 | |
| 129 | void |
| 130 | sim_config_default (SIM_DESC sd) |
| 131 | { |
| 132 | /* Set the current environment to ALL_ENVIRONMENT to indicate none has been |
| 133 | selected yet. This is so that after parsing argv, we know whether the |
| 134 | environment was explicitly specified or not. */ |
| 135 | STATE_ENVIRONMENT (sd) = ALL_ENVIRONMENT; |
| 136 | } |
| 137 | |
| 138 | /* Complete and verify the simulation environment. */ |
| 139 | |
| 140 | SIM_RC |
| 141 | sim_config (SIM_DESC sd) |
| 142 | { |
| 143 | int prefered_target_byte_order; |
| 144 | SIM_ASSERT (STATE_MAGIC (sd) == SIM_MAGIC_NUMBER); |
| 145 | |
| 146 | /* extract all relevant information */ |
| 147 | if (STATE_PROG_BFD (sd) == NULL |
| 148 | /* If we have a binary input file (presumably with specified |
| 149 | "--architecture"), it'll have no endianness. */ |
| 150 | || (!bfd_little_endian (STATE_PROG_BFD (sd)) |
| 151 | && !bfd_big_endian (STATE_PROG_BFD (sd)))) |
| 152 | prefered_target_byte_order = 0; |
| 153 | else |
| 154 | prefered_target_byte_order = (bfd_little_endian (STATE_PROG_BFD (sd)) |
| 155 | ? LITTLE_ENDIAN |
| 156 | : BIG_ENDIAN); |
| 157 | |
| 158 | /* set the host byte order */ |
| 159 | current_host_byte_order = 1; |
| 160 | if (*(char*)(¤t_host_byte_order)) |
| 161 | current_host_byte_order = LITTLE_ENDIAN; |
| 162 | else |
| 163 | current_host_byte_order = BIG_ENDIAN; |
| 164 | |
| 165 | /* verify the host byte order */ |
| 166 | if (CURRENT_HOST_BYTE_ORDER != current_host_byte_order) |
| 167 | { |
| 168 | sim_io_eprintf (sd, "host (%s) and configured (%s) byte order in conflict", |
| 169 | config_byte_order_to_a (current_host_byte_order), |
| 170 | config_byte_order_to_a (CURRENT_HOST_BYTE_ORDER)); |
| 171 | return SIM_RC_FAIL; |
| 172 | } |
| 173 | |
| 174 | |
| 175 | /* set the target byte order */ |
| 176 | #if (WITH_TREE_PROPERTIES) |
| 177 | if (current_target_byte_order == 0) |
| 178 | current_target_byte_order |
| 179 | = (tree_find_boolean_property (root, "/options/little-endian?") |
| 180 | ? LITTLE_ENDIAN |
| 181 | : BIG_ENDIAN); |
| 182 | #endif |
| 183 | if (current_target_byte_order == 0 |
| 184 | && prefered_target_byte_order != 0) |
| 185 | current_target_byte_order = prefered_target_byte_order; |
| 186 | if (current_target_byte_order == 0) |
| 187 | current_target_byte_order = WITH_TARGET_BYTE_ORDER; |
| 188 | if (current_target_byte_order == 0) |
| 189 | current_target_byte_order = WITH_DEFAULT_TARGET_BYTE_ORDER; |
| 190 | |
| 191 | /* verify the target byte order */ |
| 192 | if (CURRENT_TARGET_BYTE_ORDER == 0) |
| 193 | { |
| 194 | sim_io_eprintf (sd, "Target byte order unspecified\n"); |
| 195 | return SIM_RC_FAIL; |
| 196 | } |
| 197 | if (CURRENT_TARGET_BYTE_ORDER != current_target_byte_order) |
| 198 | sim_io_eprintf (sd, "Target (%s) and configured (%s) byte order in conflict\n", |
| 199 | config_byte_order_to_a (current_target_byte_order), |
| 200 | config_byte_order_to_a (CURRENT_TARGET_BYTE_ORDER)); |
| 201 | if (prefered_target_byte_order != 0 |
| 202 | && CURRENT_TARGET_BYTE_ORDER != prefered_target_byte_order) |
| 203 | sim_io_eprintf (sd, "Target (%s) and specified (%s) byte order in conflict\n", |
| 204 | config_byte_order_to_a (CURRENT_TARGET_BYTE_ORDER), |
| 205 | config_byte_order_to_a (prefered_target_byte_order)); |
| 206 | |
| 207 | |
| 208 | /* set the stdio */ |
| 209 | if (current_stdio == 0) |
| 210 | current_stdio = WITH_STDIO; |
| 211 | if (current_stdio == 0) |
| 212 | current_stdio = DO_USE_STDIO; |
| 213 | |
| 214 | /* verify the stdio */ |
| 215 | if (CURRENT_STDIO == 0) |
| 216 | { |
| 217 | sim_io_eprintf (sd, "Target standard IO unspecified\n"); |
| 218 | return SIM_RC_FAIL; |
| 219 | } |
| 220 | if (CURRENT_STDIO != current_stdio) |
| 221 | { |
| 222 | sim_io_eprintf (sd, "Target (%s) and configured (%s) standard IO in conflict\n", |
| 223 | config_stdio_to_a (CURRENT_STDIO), |
| 224 | config_stdio_to_a (current_stdio)); |
| 225 | return SIM_RC_FAIL; |
| 226 | } |
| 227 | |
| 228 | |
| 229 | /* check the value of MSB */ |
| 230 | if (WITH_TARGET_WORD_MSB != 0 |
| 231 | && WITH_TARGET_WORD_MSB != (WITH_TARGET_WORD_BITSIZE - 1)) |
| 232 | { |
| 233 | sim_io_eprintf (sd, "Target bitsize (%d) contradicts target most significant bit (%d)\n", |
| 234 | WITH_TARGET_WORD_BITSIZE, WITH_TARGET_WORD_MSB); |
| 235 | return SIM_RC_FAIL; |
| 236 | } |
| 237 | |
| 238 | |
| 239 | /* set the environment */ |
| 240 | #if (WITH_TREE_PROPERTIES) |
| 241 | if (STATE_ENVIRONMENT (sd) == ALL_ENVIRONMENT) |
| 242 | { |
| 243 | const char *env = |
| 244 | tree_find_string_property (root, "/openprom/options/env"); |
| 245 | STATE_ENVIRONMENT (sd) = ((strcmp (env, "user") == 0 |
| 246 | || strcmp (env, "uea") == 0) |
| 247 | ? USER_ENVIRONMENT |
| 248 | : (strcmp (env, "virtual") == 0 |
| 249 | || strcmp (env, "vea") == 0) |
| 250 | ? VIRTUAL_ENVIRONMENT |
| 251 | : (strcmp (env, "operating") == 0 |
| 252 | || strcmp (env, "oea") == 0) |
| 253 | ? OPERATING_ENVIRONMENT |
| 254 | : ALL_ENVIRONMENT); |
| 255 | } |
| 256 | #endif |
| 257 | if (STATE_ENVIRONMENT (sd) == ALL_ENVIRONMENT) |
| 258 | STATE_ENVIRONMENT (sd) = DEFAULT_ENVIRONMENT; |
| 259 | |
| 260 | |
| 261 | /* set the alignment */ |
| 262 | #if (WITH_TREE_PROPERTIES) |
| 263 | if (current_alignment == 0) |
| 264 | current_alignment = |
| 265 | (tree_find_boolean_property (root, "/openprom/options/strict-alignment?") |
| 266 | ? STRICT_ALIGNMENT |
| 267 | : NONSTRICT_ALIGNMENT); |
| 268 | #endif |
| 269 | if (current_alignment == 0) |
| 270 | current_alignment = WITH_ALIGNMENT; |
| 271 | if (current_alignment == 0) |
| 272 | current_alignment = WITH_DEFAULT_ALIGNMENT; |
| 273 | |
| 274 | /* verify the alignment */ |
| 275 | if (CURRENT_ALIGNMENT == 0) |
| 276 | { |
| 277 | sim_io_eprintf (sd, "Target alignment unspecified\n"); |
| 278 | return SIM_RC_FAIL; |
| 279 | } |
| 280 | if (CURRENT_ALIGNMENT != current_alignment) |
| 281 | { |
| 282 | sim_io_eprintf (sd, "Target (%s) and configured (%s) alignment in conflict\n", |
| 283 | config_alignment_to_a (CURRENT_ALIGNMENT), |
| 284 | config_alignment_to_a (current_alignment)); |
| 285 | return SIM_RC_FAIL; |
| 286 | } |
| 287 | |
| 288 | #if defined (WITH_FLOATING_POINT) |
| 289 | |
| 290 | /* set the floating point */ |
| 291 | if (current_floating_point == 0) |
| 292 | current_floating_point = WITH_FLOATING_POINT; |
| 293 | |
| 294 | /* verify the floating point */ |
| 295 | if (CURRENT_FLOATING_POINT == 0) |
| 296 | { |
| 297 | sim_io_eprintf (sd, "Target floating-point unspecified\n"); |
| 298 | return SIM_RC_FAIL; |
| 299 | } |
| 300 | if (CURRENT_FLOATING_POINT != current_floating_point) |
| 301 | { |
| 302 | sim_io_eprintf (sd, "Target (%s) and configured (%s) floating-point in conflict\n", |
| 303 | config_alignment_to_a (CURRENT_FLOATING_POINT), |
| 304 | config_alignment_to_a (current_floating_point)); |
| 305 | return SIM_RC_FAIL; |
| 306 | } |
| 307 | |
| 308 | #endif |
| 309 | return SIM_RC_OK; |
| 310 | } |
| 311 | |
| 312 | |
| 313 | void |
| 314 | print_sim_config (SIM_DESC sd) |
| 315 | { |
| 316 | #if defined (__GNUC__) && defined (__VERSION__) |
| 317 | sim_io_printf (sd, "Compiled by GCC %s on %s %s\n", |
| 318 | __VERSION__, __DATE__, __TIME__); |
| 319 | #else |
| 320 | sim_io_printf (sd, "Compiled on %s %s\n", __DATE__, __TIME__); |
| 321 | #endif |
| 322 | |
| 323 | sim_io_printf (sd, "WITH_TARGET_BYTE_ORDER = %s\n", |
| 324 | config_byte_order_to_a (WITH_TARGET_BYTE_ORDER)); |
| 325 | |
| 326 | sim_io_printf (sd, "WITH_DEFAULT_TARGET_BYTE_ORDER = %s\n", |
| 327 | config_byte_order_to_a (WITH_DEFAULT_TARGET_BYTE_ORDER)); |
| 328 | |
| 329 | sim_io_printf (sd, "WITH_HOST_BYTE_ORDER = %s\n", |
| 330 | config_byte_order_to_a (WITH_HOST_BYTE_ORDER)); |
| 331 | |
| 332 | sim_io_printf (sd, "WITH_STDIO = %s\n", |
| 333 | config_stdio_to_a (WITH_STDIO)); |
| 334 | |
| 335 | sim_io_printf (sd, "WITH_TARGET_WORD_MSB = %d\n", |
| 336 | WITH_TARGET_WORD_MSB); |
| 337 | |
| 338 | sim_io_printf (sd, "WITH_TARGET_WORD_BITSIZE = %d\n", |
| 339 | WITH_TARGET_WORD_BITSIZE); |
| 340 | |
| 341 | sim_io_printf (sd, "WITH_TARGET_ADDRESS_BITSIZE = %d\n", |
| 342 | WITH_TARGET_ADDRESS_BITSIZE); |
| 343 | |
| 344 | sim_io_printf (sd, "WITH_TARGET_CELL_BITSIZE = %d\n", |
| 345 | WITH_TARGET_CELL_BITSIZE); |
| 346 | |
| 347 | sim_io_printf (sd, "WITH_TARGET_FLOATING_POINT_BITSIZE = %d\n", |
| 348 | WITH_TARGET_FLOATING_POINT_BITSIZE); |
| 349 | |
| 350 | sim_io_printf (sd, "WITH_ENVIRONMENT = %s\n", |
| 351 | config_environment_to_a (WITH_ENVIRONMENT)); |
| 352 | |
| 353 | sim_io_printf (sd, "WITH_ALIGNMENT = %s\n", |
| 354 | config_alignment_to_a (WITH_ALIGNMENT)); |
| 355 | |
| 356 | #if defined (WITH_DEFAULT_ALIGNMENT) |
| 357 | sim_io_printf (sd, "WITH_DEFAULT_ALIGNMENT = %s\n", |
| 358 | config_alignment_to_a (WITH_DEFAULT_ALIGNMENT)); |
| 359 | #endif |
| 360 | |
| 361 | #if defined (WITH_XOR_ENDIAN) |
| 362 | sim_io_printf (sd, "WITH_XOR_ENDIAN = %d\n", WITH_XOR_ENDIAN); |
| 363 | #endif |
| 364 | |
| 365 | #if defined (WITH_FLOATING_POINT) |
| 366 | sim_io_printf (sd, "WITH_FLOATING_POINT = %s\n", |
| 367 | config_floating_point_to_a (WITH_FLOATING_POINT)); |
| 368 | #endif |
| 369 | |
| 370 | #if defined (WITH_SMP) |
| 371 | sim_io_printf (sd, "WITH_SMP = %d\n", WITH_SMP); |
| 372 | #endif |
| 373 | |
| 374 | #if defined (WITH_RESERVED_BITS) |
| 375 | sim_io_printf (sd, "WITH_RESERVED_BITS = %d\n", WITH_RESERVED_BITS); |
| 376 | #endif |
| 377 | |
| 378 | #if defined (WITH_PROFILE) |
| 379 | sim_io_printf (sd, "WITH_PROFILE = %d\n", WITH_PROFILE); |
| 380 | #endif |
| 381 | |
| 382 | } |