projects / deliverable / binutils-gdb.git / blame
| Commit | Line | Data |
|---|---|---|
| c906108c SS |
1 | /* |
| 2 | * func.c, misc simulator functions. This file is part of SIS. | |
| 3 | * | |
| 4 | * SIS, SPARC instruction simulator V1.8 Copyright (C) 1995 Jiri Gaisler, | |
| 5 | * European Space Agency | |
| 6 | * | |
| 7 | * This program is free software; you can redistribute it and/or modify it under | |
| 8 | * the terms of the GNU General Public License as published by the Free | |
| 9 | * Software Foundation; either version 2 of the License, or (at your option) | |
| 10 | * any later version. | |
| 11 | * | |
| 12 | * This program is distributed in the hope that it will be useful, but WITHOUT | |
| 13 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 14 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | |
| 15 | * more details. | |
| 16 | * | |
| 17 | * You should have received a copy of the GNU General Public License along with | |
| 18 | * this program; if not, write to the Free Software Foundation, Inc., 675 | |
| 19 | * Mass Ave, Cambridge, MA 02139, USA. | |
| 20 | * | |
| 21 | */ | |
| 22 | ||
| 5272643f | 23 | #include "config.h" |
| c906108c SS |
24 | #include <signal.h> |
| 25 | #include <string.h> | |
| 26 | #include <stdio.h> | |
| 27 | #include <stdlib.h> | |
| 28 | #include <ctype.h> | |
| 29 | #include "sis.h" | |
| 30 | #include "end.h" | |
| 31 | #include <dis-asm.h> | |
| 32 | #include "sim-config.h" | |
| 33 | ||
| 34 | ||
| 35 | #define VAL(x) strtoul(x,(char **)NULL,0) | |
| 36 | ||
| 37 | extern int current_target_byte_order; | |
| 38 | struct disassemble_info dinfo; | |
| 39 | struct pstate sregs; | |
| 40 | extern struct estate ebase; | |
| 41 | int ctrl_c = 0; | |
| 42 | int sis_verbose = 0; | |
| 43 | char *sis_version = "2.7.5"; | |
| 44 | int nfp = 0; | |
| 45 | int ift = 0; | |
| 46 | int wrp = 0; | |
| 47 | int rom8 = 0; | |
| 48 | int uben = 0; | |
| 49 | int termsave; | |
| 50 | int sparclite = 0; /* emulating SPARClite instructions? */ | |
| 51 | int sparclite_board = 0; /* emulating SPARClite board RAM? */ | |
| 52 | char uart_dev1[128] = ""; | |
| 53 | char uart_dev2[128] = ""; | |
| 54 | extern int ext_irl; | |
| 55 | uint32 last_load_addr = 0; | |
| 56 | ||
| 57 | #ifdef ERRINJ | |
| 58 | uint32 errcnt = 0; | |
| 59 | uint32 errper = 0; | |
| 60 | uint32 errtt = 0; | |
| 61 | uint32 errftt = 0; | |
| 62 | uint32 errmec = 0; | |
| 63 | #endif | |
| 64 | ||
| 65 | /* Forward declarations */ | |
| 66 | ||
| 67 | static int batch PARAMS ((struct pstate *sregs, char *fname)); | |
| 68 | static void set_rega PARAMS ((struct pstate *sregs, char *reg, uint32 rval)); | |
| 69 | static void disp_reg PARAMS ((struct pstate *sregs, char *reg)); | |
| 70 | static uint32 limcalc PARAMS ((float32 freq)); | |
| 71 | static void int_handler PARAMS ((int32 sig)); | |
| 72 | static void init_event PARAMS ((void)); | |
| 73 | static int disp_fpu PARAMS ((struct pstate *sregs)); | |
| 74 | static void disp_regs PARAMS ((struct pstate *sregs, int cwp)); | |
| 75 | static void disp_ctrl PARAMS ((struct pstate *sregs)); | |
| 76 | static void disp_mem PARAMS ((uint32 addr, uint32 len)); | |
| 77 | ||
| 78 | static int | |
| 79 | batch(sregs, fname) | |
| 80 | struct pstate *sregs; | |
| 81 | char *fname; | |
| 82 | { | |
| 83 | FILE *fp; | |
| 84 | char lbuf[1024]; | |
| 85 | ||
| 86 | if ((fp = fopen(fname, "r")) == NULL) { | |
| 87 | fprintf(stderr, "couldn't open batch file %s\n", fname); | |
| 88 | return (0); | |
| 89 | } | |
| 90 | while (!feof(fp)) { | |
| 91 | lbuf[0] = 0; | |
| 92 | fgets(lbuf, 1023, fp); | |
| 93 | if ((strlen(lbuf) > 0) && (lbuf[strlen(lbuf) - 1] == '\n')) | |
| 94 | lbuf[strlen(lbuf) - 1] = 0; | |
| 95 | printf("sis> %s\n", lbuf); | |
| 96 | exec_cmd(sregs, lbuf); | |
| 97 | } | |
| 98 | fclose(fp); | |
| 99 | return (1); | |
| 100 | } | |
| 101 | ||
| 102 | void | |
| 103 | set_regi(sregs, reg, rval) | |
| 104 | struct pstate *sregs; | |
| 105 | int32 reg; | |
| 106 | uint32 rval; | |
| 107 | { | |
| 108 | uint32 cwp; | |
| 109 | ||
| 110 | cwp = ((sregs->psr & 0x7) << 4); | |
| 111 | if ((reg > 0) && (reg < 8)) { | |
| 112 | sregs->g[reg] = rval; | |
| 113 | } else if ((reg >= 8) && (reg < 32)) { | |
| 114 | sregs->r[(cwp + reg) & 0x7f] = rval; | |
| 115 | } else if ((reg >= 32) && (reg < 64)) { | |
| 116 | sregs->fsi[reg - 32] = rval; | |
| 117 | } else { | |
| 118 | switch (reg) { | |
| 119 | case 64: | |
| 120 | sregs->y = rval; | |
| 121 | break; | |
| 122 | case 65: | |
| 123 | sregs->psr = rval; | |
| 124 | break; | |
| 125 | case 66: | |
| 126 | sregs->wim = rval; | |
| 127 | break; | |
| 128 | case 67: | |
| 129 | sregs->tbr = rval; | |
| 130 | break; | |
| 131 | case 68: | |
| 132 | sregs->pc = rval; | |
| 133 | break; | |
| 134 | case 69: | |
| 135 | sregs->npc = rval; | |
| 136 | break; | |
| 137 | case 70: | |
| 138 | sregs->fsr = rval; | |
| 139 | set_fsr(rval); | |
| 140 | break; | |
| 141 | default:break; | |
| 142 | } | |
| 143 | } | |
| 144 | } | |
| 145 | ||
| 146 | void | |
| 147 | get_regi(struct pstate * sregs, int32 reg, char *buf) | |
| 148 | { | |
| 149 | uint32 cwp; | |
| 150 | uint32 rval = 0; | |
| 151 | ||
| 152 | cwp = ((sregs->psr & 0x7) << 4); | |
| 153 | if ((reg >= 0) && (reg < 8)) { | |
| 154 | rval = sregs->g[reg]; | |
| 155 | } else if ((reg >= 8) && (reg < 32)) { | |
| 156 | rval = sregs->r[(cwp + reg) & 0x7f]; | |
| 157 | } else if ((reg >= 32) && (reg < 64)) { | |
| 158 | rval = sregs->fsi[reg - 32]; | |
| 159 | } else { | |
| 160 | switch (reg) { | |
| 161 | case 64: | |
| 162 | rval = sregs->y; | |
| 163 | break; | |
| 164 | case 65: | |
| 165 | rval = sregs->psr; | |
| 166 | break; | |
| 167 | case 66: | |
| 168 | rval = sregs->wim; | |
| 169 | break; | |
| 170 | case 67: | |
| 171 | rval = sregs->tbr; | |
| 172 | break; | |
| 173 | case 68: | |
| 174 | rval = sregs->pc; | |
| 175 | break; | |
| 176 | case 69: | |
| 177 | rval = sregs->npc; | |
| 178 | break; | |
| 179 | case 70: | |
| 180 | rval = sregs->fsr; | |
| 181 | break; | |
| 182 | default:break; | |
| 183 | } | |
| 184 | } | |
| 185 | if (current_target_byte_order == BIG_ENDIAN) { | |
| 186 | buf[0] = (rval >> 24) & 0x0ff; | |
| 187 | buf[1] = (rval >> 16) & 0x0ff; | |
| 188 | buf[2] = (rval >> 8) & 0x0ff; | |
| 189 | buf[3] = rval & 0x0ff; | |
| 190 | } | |
| 191 | else { | |
| 192 | buf[3] = (rval >> 24) & 0x0ff; | |
| 193 | buf[2] = (rval >> 16) & 0x0ff; | |
| 194 | buf[1] = (rval >> 8) & 0x0ff; | |
| 195 | buf[0] = rval & 0x0ff; | |
| 196 | } | |
| 197 | } | |
| 198 | ||
| 199 | ||
| 200 | static void | |
| 201 | set_rega(sregs, reg, rval) | |
| 202 | struct pstate *sregs; | |
| 203 | char *reg; | |
| 204 | uint32 rval; | |
| 205 | { | |
| 206 | uint32 cwp; | |
| 207 | int32 err = 0; | |
| 208 | ||
| 209 | cwp = ((sregs->psr & 0x7) << 4); | |
| 210 | if (strcmp(reg, "psr") == 0) | |
| 211 | sregs->psr = (rval = (rval & 0x00f03fff)); | |
| 212 | else if (strcmp(reg, "tbr") == 0) | |
| 213 | sregs->tbr = (rval = (rval & 0xfffffff0)); | |
| 214 | else if (strcmp(reg, "wim") == 0) | |
| 215 | sregs->wim = (rval = (rval & 0x0ff)); | |
| 216 | else if (strcmp(reg, "y") == 0) | |
| 217 | sregs->y = rval; | |
| 218 | else if (strcmp(reg, "pc") == 0) | |
| 219 | sregs->pc = rval; | |
| 220 | else if (strcmp(reg, "npc") == 0) | |
| 221 | sregs->npc = rval; | |
| 222 | else if (strcmp(reg, "fsr") == 0) { | |
| 223 | sregs->fsr = rval; | |
| 224 | set_fsr(rval); | |
| 225 | } else if (strcmp(reg, "g0") == 0) | |
| 226 | err = 2; | |
| 227 | else if (strcmp(reg, "g1") == 0) | |
| 228 | sregs->g[1] = rval; | |
| 229 | else if (strcmp(reg, "g2") == 0) | |
| 230 | sregs->g[2] = rval; | |
| 231 | else if (strcmp(reg, "g3") == 0) | |
| 232 | sregs->g[3] = rval; | |
| 233 | else if (strcmp(reg, "g4") == 0) | |
| 234 | sregs->g[4] = rval; | |
| 235 | else if (strcmp(reg, "g5") == 0) | |
| 236 | sregs->g[5] = rval; | |
| 237 | else if (strcmp(reg, "g6") == 0) | |
| 238 | sregs->g[6] = rval; | |
| 239 | else if (strcmp(reg, "g7") == 0) | |
| 240 | sregs->g[7] = rval; | |
| 241 | else if (strcmp(reg, "o0") == 0) | |
| 242 | sregs->r[(cwp + 8) & 0x7f] = rval; | |
| 243 | else if (strcmp(reg, "o1") == 0) | |
| 244 | sregs->r[(cwp + 9) & 0x7f] = rval; | |
| 245 | else if (strcmp(reg, "o2") == 0) | |
| 246 | sregs->r[(cwp + 10) & 0x7f] = rval; | |
| 247 | else if (strcmp(reg, "o3") == 0) | |
| 248 | sregs->r[(cwp + 11) & 0x7f] = rval; | |
| 249 | else if (strcmp(reg, "o4") == 0) | |
| 250 | sregs->r[(cwp + 12) & 0x7f] = rval; | |
| 251 | else if (strcmp(reg, "o5") == 0) | |
| 252 | sregs->r[(cwp + 13) & 0x7f] = rval; | |
| 253 | else if (strcmp(reg, "o6") == 0) | |
| 254 | sregs->r[(cwp + 14) & 0x7f] = rval; | |
| 255 | else if (strcmp(reg, "o7") == 0) | |
| 256 | sregs->r[(cwp + 15) & 0x7f] = rval; | |
| 257 | else if (strcmp(reg, "l0") == 0) | |
| 258 | sregs->r[(cwp + 16) & 0x7f] = rval; | |
| 259 | else if (strcmp(reg, "l1") == 0) | |
| 260 | sregs->r[(cwp + 17) & 0x7f] = rval; | |
| 261 | else if (strcmp(reg, "l2") == 0) | |
| 262 | sregs->r[(cwp + 18) & 0x7f] = rval; | |
| 263 | else if (strcmp(reg, "l3") == 0) | |
| 264 | sregs->r[(cwp + 19) & 0x7f] = rval; | |
| 265 | else if (strcmp(reg, "l4") == 0) | |
| 266 | sregs->r[(cwp + 20) & 0x7f] = rval; | |
| 267 | else if (strcmp(reg, "l5") == 0) | |
| 268 | sregs->r[(cwp + 21) & 0x7f] = rval; | |
| 269 | else if (strcmp(reg, "l6") == 0) | |
| 270 | sregs->r[(cwp + 22) & 0x7f] = rval; | |
| 271 | else if (strcmp(reg, "l7") == 0) | |
| 272 | sregs->r[(cwp + 23) & 0x7f] = rval; | |
| 273 | else if (strcmp(reg, "i0") == 0) | |
| 274 | sregs->r[(cwp + 24) & 0x7f] = rval; | |
| 275 | else if (strcmp(reg, "i1") == 0) | |
| 276 | sregs->r[(cwp + 25) & 0x7f] = rval; | |
| 277 | else if (strcmp(reg, "i2") == 0) | |
| 278 | sregs->r[(cwp + 26) & 0x7f] = rval; | |
| 279 | else if (strcmp(reg, "i3") == 0) | |
| 280 | sregs->r[(cwp + 27) & 0x7f] = rval; | |
| 281 | else if (strcmp(reg, "i4") == 0) | |
| 282 | sregs->r[(cwp + 28) & 0x7f] = rval; | |
| 283 | else if (strcmp(reg, "i5") == 0) | |
| 284 | sregs->r[(cwp + 29) & 0x7f] = rval; | |
| 285 | else if (strcmp(reg, "i6") == 0) | |
| 286 | sregs->r[(cwp + 30) & 0x7f] = rval; | |
| 287 | else if (strcmp(reg, "i7") == 0) | |
| 288 | sregs->r[(cwp + 31) & 0x7f] = rval; | |
| 289 | else | |
| 290 | err = 1; | |
| 291 | switch (err) { | |
| 292 | case 0: | |
| 293 | printf("%s = %d (0x%08x)\n", reg, rval, rval); | |
| 294 | break; | |
| 295 | case 1: | |
| 296 | printf("no such regiser: %s\n", reg); | |
| 297 | break; | |
| 298 | case 2: | |
| 299 | printf("cannot set g0\n"); | |
| 300 | break; | |
| 301 | default: | |
| 302 | break; | |
| 303 | } | |
| 304 | ||
| 305 | } | |
| 306 | ||
| 307 | static void | |
| 308 | disp_reg(sregs, reg) | |
| 309 | struct pstate *sregs; | |
| 310 | char *reg; | |
| 311 | { | |
| 312 | if (strncmp(reg, "w",1) == 0) | |
| 313 | disp_regs(sregs, VAL(®[1])); | |
| 314 | } | |
| 315 | ||
| 316 | #ifdef ERRINJ | |
| 317 | ||
| 318 | void | |
| 319 | errinj() | |
| 320 | { | |
| 321 | int err; | |
| 322 | ||
| 323 | switch (err = (random() % 12)) { | |
| 324 | case 0: errtt = 0x61; break; | |
| 325 | case 1: errtt = 0x62; break; | |
| 326 | case 2: errtt = 0x63; break; | |
| 327 | case 3: errtt = 0x64; break; | |
| 328 | case 4: errtt = 0x65; break; | |
| 329 | case 5: | |
| 330 | case 6: | |
| 331 | case 7: errftt = err; | |
| 332 | break; | |
| 333 | case 8: errmec = 1; break; | |
| 334 | case 9: errmec = 2; break; | |
| 335 | case 10: errmec = 5; break; | |
| 336 | case 11: errmec = 6; break; | |
| 337 | } | |
| 338 | errcnt++; | |
| 339 | if (errper) event(errinj, 0, (random()%errper)); | |
| 340 | } | |
| 341 | ||
| 342 | void | |
| 343 | errinjstart() | |
| 344 | { | |
| 345 | if (errper) event(errinj, 0, (random()%errper)); | |
| 346 | } | |
| 347 | ||
| 348 | #endif | |
| 349 | ||
| 350 | static uint32 | |
| 351 | limcalc (freq) | |
| 352 | float32 freq; | |
| 353 | { | |
| 354 | uint32 unit, lim; | |
| 355 | double flim; | |
| 356 | char *cmd1, *cmd2; | |
| 357 | ||
| 358 | unit = 1; | |
| 359 | lim = -1; | |
| 360 | if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) { | |
| 361 | lim = VAL(cmd1); | |
| 362 | if ((cmd2 = strtok(NULL, " \t\n\r")) != NULL) { | |
| 363 | if (strcmp(cmd2,"us")==0) unit = 1; | |
| 364 | if (strcmp(cmd2,"ms")==0) unit = 1000; | |
| 365 | if (strcmp(cmd2,"s")==0) unit = 1000000; | |
| 366 | } | |
| 367 | flim = (double) lim * (double) unit * (double) freq + | |
| 368 | (double) ebase.simtime; | |
| 369 | if ((flim > ebase.simtime) && (flim < 4294967296.0)) { | |
| 370 | lim = (uint32) flim; | |
| 371 | } else { | |
| 372 | printf("error in expression\n"); | |
| 373 | lim = -1; | |
| 374 | } | |
| 375 | } | |
| 376 | return (lim); | |
| 377 | } | |
| 378 | ||
| 379 | int | |
| 380 | exec_cmd(sregs, cmd) | |
| 381 | char *cmd; | |
| 382 | struct pstate *sregs; | |
| 383 | { | |
| 384 | char *cmd1, *cmd2; | |
| 385 | int32 stat; | |
| 386 | uint32 len, i, clen, j; | |
| 387 | static uint32 daddr = 0; | |
| 388 | char *cmdsave; | |
| 389 | ||
| 390 | stat = OK; | |
| 391 | cmdsave = strdup(cmd); | |
| 392 | if ((cmd1 = strtok(cmd, " \t")) != NULL) { | |
| 393 | clen = strlen(cmd1); | |
| 394 | if (strncmp(cmd1, "bp", clen) == 0) { | |
| 395 | for (i = 0; i < sregs->bptnum; i++) { | |
| 396 | printf(" %d : 0x%08x\n", i + 1, sregs->bpts[i]); | |
| 397 | } | |
| 398 | } else if (strncmp(cmd1, "+bp", clen) == 0) { | |
| 399 | if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) { | |
| 400 | sregs->bpts[sregs->bptnum] = VAL(cmd1) & ~0x3; | |
| 401 | printf("added breakpoint %d at 0x%08x\n", | |
| 402 | sregs->bptnum + 1, sregs->bpts[sregs->bptnum]); | |
| 403 | sregs->bptnum += 1; | |
| 404 | } | |
| 405 | } else if (strncmp(cmd1, "-bp", clen) == 0) { | |
| 406 | if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) { | |
| 407 | i = VAL(cmd1) - 1; | |
| 408 | if ((i >= 0) && (i < sregs->bptnum)) { | |
| 409 | printf("deleted breakpoint %d at 0x%08x\n", i + 1, | |
| 410 | sregs->bpts[i]); | |
| 411 | for (; i < sregs->bptnum - 1; i++) { | |
| 412 | sregs->bpts[i] = sregs->bpts[i + 1]; | |
| 413 | } | |
| 414 | sregs->bptnum -= 1; | |
| 415 | } | |
| 416 | } | |
| 417 | } else if (strncmp(cmd1, "batch", clen) == 0) { | |
| 418 | if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) { | |
| 419 | printf("no file specified\n"); | |
| 420 | } else { | |
| 421 | batch(sregs, cmd1); | |
| 422 | } | |
| 423 | } else if (strncmp(cmd1, "cont", clen) == 0) { | |
| 424 | if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) { | |
| 94110024 | 425 | stat = run_sim(sregs, UINT64_MAX, 0); |
| c906108c SS |
426 | } else { |
| 427 | stat = run_sim(sregs, VAL(cmd1), 0); | |
| 428 | } | |
| 429 | daddr = sregs->pc; | |
| 430 | sim_halt(); | |
| 431 | } else if (strncmp(cmd1, "debug", clen) == 0) { | |
| 432 | if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) { | |
| 433 | sis_verbose = VAL(cmd1); | |
| 434 | } | |
| 435 | printf("Debug level = %d\n",sis_verbose); | |
| 436 | } else if (strncmp(cmd1, "dis", clen) == 0) { | |
| 437 | if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) { | |
| 438 | daddr = VAL(cmd1); | |
| 439 | } | |
| 440 | if ((cmd2 = strtok(NULL, " \t\n\r")) != NULL) { | |
| 441 | len = VAL(cmd2); | |
| 442 | } else | |
| 443 | len = 16; | |
| 444 | printf("\n"); | |
| 445 | dis_mem(daddr, len, &dinfo); | |
| 446 | printf("\n"); | |
| 447 | daddr += len * 4; | |
| 448 | } else if (strncmp(cmd1, "echo", clen) == 0) { | |
| 449 | if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) { | |
| 450 | printf("%s\n", (&cmdsave[clen+1])); | |
| 451 | } | |
| 452 | #ifdef ERRINJ | |
| 453 | } else if (strncmp(cmd1, "error", clen) == 0) { | |
| 454 | if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) { | |
| 455 | errper = VAL(cmd1); | |
| 456 | if (errper) { | |
| 457 | event(errinj, 0, (len = (random()%errper))); | |
| 458 | printf("Error injection started with period %d\n",len); | |
| 459 | } | |
| 460 | } else printf("Injected errors: %d\n",errcnt); | |
| 461 | #endif | |
| 462 | } else if (strncmp(cmd1, "float", clen) == 0) { | |
| 463 | stat = disp_fpu(sregs); | |
| 464 | } else if (strncmp(cmd1, "go", clen) == 0) { | |
| 465 | if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) { | |
| 466 | len = last_load_addr; | |
| 467 | } else { | |
| 468 | len = VAL(cmd1); | |
| 469 | } | |
| 470 | sregs->pc = len & ~3; | |
| 471 | sregs->npc = sregs->pc + 4; | |
| 472 | printf("resuming at 0x%08x\n",sregs->pc); | |
| 473 | if ((cmd2 = strtok(NULL, " \t\n\r")) != NULL) { | |
| 474 | stat = run_sim(sregs, VAL(cmd2), 0); | |
| 475 | } else { | |
| 94110024 | 476 | stat = run_sim(sregs, UINT64_MAX, 0); |
| c906108c SS |
477 | } |
| 478 | daddr = sregs->pc; | |
| 479 | sim_halt(); | |
| 480 | } else if (strncmp(cmd1, "help", clen) == 0) { | |
| 481 | gen_help(); | |
| 482 | } else if (strncmp(cmd1, "history", clen) == 0) { | |
| 483 | if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) { | |
| 484 | sregs->histlen = VAL(cmd1); | |
| 485 | if (sregs->histbuf != NULL) | |
| 486 | free(sregs->histbuf); | |
| 487 | sregs->histbuf = (struct histype *) calloc(sregs->histlen, sizeof(struct histype)); | |
| 488 | printf("trace history length = %d\n\r", sregs->histlen); | |
| 489 | sregs->histind = 0; | |
| 490 | ||
| 491 | } else { | |
| 492 | j = sregs->histind; | |
| 493 | for (i = 0; i < sregs->histlen; i++) { | |
| 494 | if (j >= sregs->histlen) | |
| 495 | j = 0; | |
| 496 | printf(" %8d ", sregs->histbuf[j].time); | |
| 497 | dis_mem(sregs->histbuf[j].addr, 1, &dinfo); | |
| 498 | j++; | |
| 499 | } | |
| 500 | } | |
| 501 | ||
| 502 | } else if (strncmp(cmd1, "load", clen) == 0) { | |
| 503 | if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) { | |
| 504 | last_load_addr = bfd_load(cmd1); | |
| 505 | while ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) | |
| 506 | last_load_addr = bfd_load(cmd1); | |
| 507 | } else { | |
| 508 | printf("load: no file specified\n"); | |
| 509 | } | |
| 510 | } else if (strncmp(cmd1, "mem", clen) == 0) { | |
| 511 | if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) | |
| 512 | daddr = VAL(cmd1); | |
| 513 | if ((cmd2 = strtok(NULL, " \t\n\r")) != NULL) | |
| 514 | len = VAL(cmd2); | |
| 515 | else | |
| 516 | len = 64; | |
| 517 | disp_mem(daddr, len); | |
| 518 | daddr += len; | |
| 519 | } else if (strncmp(cmd1, "perf", clen) == 0) { | |
| 520 | cmd1 = strtok(NULL, " \t\n\r"); | |
| 521 | if ((cmd1 != NULL) && | |
| 522 | (strncmp(cmd1, "reset", strlen(cmd1)) == 0)) { | |
| 523 | reset_stat(sregs); | |
| 524 | } else | |
| 525 | show_stat(sregs); | |
| 526 | } else if (strncmp(cmd1, "quit", clen) == 0) { | |
| 527 | exit(0); | |
| 528 | } else if (strncmp(cmd1, "reg", clen) == 0) { | |
| 529 | cmd1 = strtok(NULL, " \t\n\r"); | |
| 530 | cmd2 = strtok(NULL, " \t\n\r"); | |
| 531 | if (cmd2 != NULL) | |
| 532 | set_rega(sregs, cmd1, VAL(cmd2)); | |
| 533 | else if (cmd1 != NULL) | |
| 534 | disp_reg(sregs, cmd1); | |
| 535 | else { | |
| 536 | disp_regs(sregs,sregs->psr); | |
| 537 | disp_ctrl(sregs); | |
| 538 | } | |
| 539 | } else if (strncmp(cmd1, "reset", clen) == 0) { | |
| 540 | ebase.simtime = 0; | |
| 541 | reset_all(); | |
| 542 | reset_stat(sregs); | |
| 543 | } else if (strncmp(cmd1, "run", clen) == 0) { | |
| 544 | ebase.simtime = 0; | |
| 545 | reset_all(); | |
| 546 | reset_stat(sregs); | |
| 547 | if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) { | |
| 94110024 | 548 | stat = run_sim(sregs, UINT64_MAX, 0); |
| c906108c SS |
549 | } else { |
| 550 | stat = run_sim(sregs, VAL(cmd1), 0); | |
| 551 | } | |
| 552 | daddr = sregs->pc; | |
| 553 | sim_halt(); | |
| 554 | } else if (strncmp(cmd1, "shell", clen) == 0) { | |
| 555 | if ((cmd1 = strtok(NULL, " \t\n\r")) != NULL) { | |
| 556 | system(&cmdsave[clen]); | |
| 557 | } | |
| 558 | } else if (strncmp(cmd1, "step", clen) == 0) { | |
| 559 | stat = run_sim(sregs, 1, 1); | |
| 560 | daddr = sregs->pc; | |
| 561 | sim_halt(); | |
| 562 | } else if (strncmp(cmd1, "tcont", clen) == 0) { | |
| 563 | sregs->tlimit = limcalc(sregs->freq); | |
| 94110024 | 564 | stat = run_sim(sregs, UINT64_MAX, 0); |
| c906108c SS |
565 | daddr = sregs->pc; |
| 566 | sim_halt(); | |
| 567 | } else if (strncmp(cmd1, "tgo", clen) == 0) { | |
| 568 | if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) { | |
| 569 | len = last_load_addr; | |
| 570 | } else { | |
| 571 | len = VAL(cmd1); | |
| 572 | sregs->tlimit = limcalc(sregs->freq); | |
| 573 | } | |
| 574 | sregs->pc = len & ~3; | |
| 575 | sregs->npc = sregs->pc + 4; | |
| 576 | printf("resuming at 0x%08x\n",sregs->pc); | |
| 94110024 | 577 | stat = run_sim(sregs, UINT64_MAX, 0); |
| c906108c SS |
578 | daddr = sregs->pc; |
| 579 | sim_halt(); | |
| 580 | } else if (strncmp(cmd1, "tlimit", clen) == 0) { | |
| 581 | sregs->tlimit = limcalc(sregs->freq); | |
| 582 | if (sregs->tlimit != (uint32) -1) | |
| 583 | printf("simulation limit = %u (%.3f ms)\n",(uint32) sregs->tlimit, | |
| 584 | sregs->tlimit / sregs->freq / 1000); | |
| 585 | } else if (strncmp(cmd1, "tra", clen) == 0) { | |
| 586 | if ((cmd1 = strtok(NULL, " \t\n\r")) == NULL) { | |
| 94110024 | 587 | stat = run_sim(sregs, UINT64_MAX, 1); |
| c906108c SS |
588 | } else { |
| 589 | stat = run_sim(sregs, VAL(cmd1), 1); | |
| 590 | } | |
| 591 | printf("\n"); | |
| 592 | daddr = sregs->pc; | |
| 593 | sim_halt(); | |
| 594 | } else if (strncmp(cmd1, "trun", clen) == 0) { | |
| 595 | ebase.simtime = 0; | |
| 596 | reset_all(); | |
| 597 | reset_stat(sregs); | |
| 598 | sregs->tlimit = limcalc(sregs->freq); | |
| 94110024 | 599 | stat = run_sim(sregs, UINT64_MAX, 0); |
| c906108c SS |
600 | daddr = sregs->pc; |
| 601 | sim_halt(); | |
| 602 | } else | |
| 603 | printf("syntax error\n"); | |
| 604 | } | |
| 605 | if (cmdsave != NULL) | |
| 606 | free(cmdsave); | |
| 607 | return (stat); | |
| 608 | } | |
| 609 | ||
| 610 | ||
| 611 | void | |
| 612 | reset_stat(sregs) | |
| 613 | struct pstate *sregs; | |
| 614 | { | |
| 615 | sregs->tottime = 0; | |
| 616 | sregs->pwdtime = 0; | |
| 617 | sregs->ninst = 0; | |
| 618 | sregs->fholdt = 0; | |
| 619 | sregs->holdt = 0; | |
| 620 | sregs->icntt = 0; | |
| 621 | sregs->finst = 0; | |
| 622 | sregs->nstore = 0; | |
| 623 | sregs->nload = 0; | |
| 624 | sregs->nbranch = 0; | |
| 625 | sregs->simstart = ebase.simtime; | |
| 626 | ||
| 627 | } | |
| 628 | ||
| 629 | void | |
| 630 | show_stat(sregs) | |
| 631 | struct pstate *sregs; | |
| 632 | { | |
| 633 | uint32 iinst; | |
| 634 | uint32 stime, tottime; | |
| 635 | ||
| 636 | if (sregs->tottime == 0) tottime = 1; else tottime = sregs->tottime; | |
| 637 | stime = ebase.simtime - sregs->simstart; /* Total simulated time */ | |
| 638 | #ifdef STAT | |
| 639 | ||
| 640 | iinst = sregs->ninst - sregs->finst - sregs->nload - sregs->nstore - | |
| 641 | sregs->nbranch; | |
| 642 | #endif | |
| 643 | ||
| 644 | printf("\n Cycles : %9d\n\r", ebase.simtime - sregs->simstart); | |
| 645 | printf(" Instructions : %9d\n", sregs->ninst); | |
| 646 | ||
| 647 | #ifdef STAT | |
| 648 | printf(" integer : %9.2f %%\n", 100.0 * (float) iinst / (float) sregs->ninst); | |
| 649 | printf(" load : %9.2f %%\n", | |
| 650 | 100.0 * (float) sregs->nload / (float) sregs->ninst); | |
| 651 | printf(" store : %9.2f %%\n", | |
| 652 | 100.0 * (float) sregs->nstore / (float) sregs->ninst); | |
| 653 | printf(" branch : %9.2f %%\n", | |
| 654 | 100.0 * (float) sregs->nbranch / (float) sregs->ninst); | |
| 655 | printf(" float : %9.2f %%\n", | |
| 656 | 100.0 * (float) sregs->finst / (float) sregs->ninst); | |
| 657 | printf(" Integer CPI : %9.2f\n", | |
| 658 | ((float) (stime - sregs->pwdtime - sregs->fholdt - sregs->finst)) | |
| 659 | / | |
| 660 | (float) (sregs->ninst - sregs->finst)); | |
| 661 | printf(" Float CPI : %9.2f\n", | |
| 662 | ((float) sregs->fholdt / (float) sregs->finst) + 1.0); | |
| 663 | #endif | |
| 664 | printf(" Overall CPI : %9.2f\n", | |
| 665 | (float) (stime - sregs->pwdtime) / (float) sregs->ninst); | |
| 666 | printf("\n ERC32 performance (%4.1f MHz): %5.2f MOPS (%5.2f MIPS, %5.2f MFLOPS)\n", | |
| 667 | sregs->freq, sregs->freq * (float) sregs->ninst / (float) (stime - sregs->pwdtime), | |
| 668 | sregs->freq * (float) (sregs->ninst - sregs->finst) / | |
| 669 | (float) (stime - sregs->pwdtime), | |
| 670 | sregs->freq * (float) sregs->finst / (float) (stime - sregs->pwdtime)); | |
| 671 | printf(" Simulated ERC32 time : %5.2f ms\n", (float) (ebase.simtime - sregs->simstart) / 1000.0 / sregs->freq); | |
| 672 | printf(" Processor utilisation : %5.2f %%\n", 100.0 * (1.0 - ((float) sregs->pwdtime / (float) stime))); | |
| 673 | printf(" Real-time / simulator-time : 1/%.2f \n", | |
| 674 | ((float) sregs->tottime) / ((float) (stime) / (sregs->freq * 1.0E6))); | |
| 675 | printf(" Simulator performance : %d KIPS\n",sregs->ninst/tottime/1000); | |
| 676 | printf(" Used time (sys + user) : %3d s\n\n", sregs->tottime); | |
| 677 | } | |
| 678 | ||
| 679 | ||
| 680 | ||
| 681 | void | |
| 682 | init_bpt(sregs) | |
| 683 | struct pstate *sregs; | |
| 684 | { | |
| 685 | sregs->bptnum = 0; | |
| 686 | sregs->histlen = 0; | |
| 687 | sregs->histind = 0; | |
| 688 | sregs->histbuf = NULL; | |
| 689 | sregs->tlimit = -1; | |
| 690 | } | |
| 691 | ||
| 692 | static void | |
| 693 | int_handler(sig) | |
| 694 | int32 sig; | |
| 695 | { | |
| 696 | if (sig != 2) | |
| 697 | printf("\n\n Signal handler error (%d)\n\n", sig); | |
| 698 | ctrl_c = 1; | |
| 699 | } | |
| 700 | ||
| 701 | void | |
| 702 | init_signals() | |
| 703 | { | |
| 704 | typedef void (*PFI) (); | |
| 705 | static PFI int_tab[2]; | |
| 706 | ||
| 707 | int_tab[0] = signal(SIGTERM, int_handler); | |
| 708 | int_tab[1] = signal(SIGINT, int_handler); | |
| 709 | } | |
| 710 | ||
| 711 | ||
| 712 | extern struct disassemble_info dinfo; | |
| 713 | ||
| 714 | struct estate ebase; | |
| 715 | struct evcell evbuf[EVENT_MAX]; | |
| 716 | struct irqcell irqarr[16]; | |
| 717 | ||
| 718 | static int | |
| 719 | disp_fpu(sregs) | |
| 720 | struct pstate *sregs; | |
| 721 | { | |
| 722 | ||
| 723 | int i; | |
| 724 | float t; | |
| 725 | ||
| 726 | printf("\n fsr: %08X\n\n", sregs->fsr); | |
| 727 | ||
| 728 | #ifdef HOST_LITTLE_ENDIAN_FLOAT | |
| 729 | for (i = 0; i < 32; i++) | |
| 730 | sregs->fdp[i ^ 1] = sregs->fs[i]; | |
| 731 | #endif | |
| 732 | ||
| 733 | for (i = 0; i < 32; i++) { | |
| 734 | t = sregs->fs[i]; | |
| 735 | printf(" f%02d %08x %14e ", i, sregs->fsi[i], sregs->fs[i]); | |
| 736 | if (!(i & 1)) | |
| 737 | printf("%14e\n", sregs->fd[i >> 1]); | |
| 738 | else | |
| 739 | printf("\n"); | |
| 740 | } | |
| 741 | printf("\n"); | |
| 742 | return (OK); | |
| 743 | } | |
| 744 | ||
| 745 | static void | |
| 746 | disp_regs(sregs,cwp) | |
| 747 | struct pstate *sregs; | |
| 748 | int cwp; | |
| 749 | { | |
| 750 | ||
| 751 | int i; | |
| 752 | ||
| 753 | cwp = ((cwp & 0x7) << 4); | |
| 754 | printf("\n\t INS LOCALS OUTS GLOBALS\n"); | |
| 755 | for (i = 0; i < 8; i++) { | |
| 756 | printf(" %d: %08X %08X %08X %08X\n", i, | |
| 757 | sregs->r[(cwp + i + 24) & 0x7f], | |
| 758 | sregs->r[(cwp + i + 16) & 0x7f], sregs->r[(cwp + i + 8) & 0x7f], | |
| 759 | sregs->g[i]); | |
| 760 | } | |
| 761 | } | |
| 762 | ||
| 763 | static void | |
| 764 | disp_ctrl(sregs) | |
| 765 | struct pstate *sregs; | |
| 766 | { | |
| 767 | ||
| 768 | unsigned char i[4]; | |
| 769 | ||
| 770 | printf("\n psr: %08X wim: %08X tbr: %08X y: %08X\n", | |
| 771 | sregs->psr, sregs->wim, sregs->tbr, sregs->y); | |
| 772 | sis_memory_read(sregs->pc, i, 4); | |
| 773 | printf("\n pc: %08X = %02X%02X%02X%02X ", sregs->pc,i[0],i[1],i[2],i[3]); | |
| 774 | print_insn_sparc(sregs->pc, &dinfo); | |
| 775 | sis_memory_read(sregs->npc, i, 4); | |
| 776 | printf("\n npc: %08X = %02X%02X%02X%02X ",sregs->npc,i[0],i[1],i[2],i[3]); | |
| 777 | print_insn_sparc(sregs->npc, &dinfo); | |
| 778 | if (sregs->err_mode) | |
| 779 | printf("\n IU in error mode"); | |
| 780 | printf("\n\n"); | |
| 781 | } | |
| 782 | ||
| 783 | static void | |
| 784 | disp_mem(addr, len) | |
| 785 | uint32 addr; | |
| 786 | uint32 len; | |
| 787 | { | |
| 788 | ||
| 789 | uint32 i; | |
| 790 | unsigned char data[4]; | |
| 791 | uint32 mem[4], j; | |
| 792 | char *p; | |
| 793 | ||
| 794 | for (i = addr & ~3; i < ((addr + len) & ~3); i += 16) { | |
| 795 | printf("\n %8X ", i); | |
| 796 | for (j = 0; j < 4; j++) { | |
| 797 | sis_memory_read((i + (j * 4)), data, 4); | |
| 798 | printf("%02x%02x%02x%02x ", data[0],data[1],data[2],data[3]); | |
| 799 | mem[j] = *((int *) &data); | |
| 800 | } | |
| 801 | printf(" "); | |
| 802 | p = (char *) mem; | |
| 803 | for (j = 0; j < 16; j++) { | |
| 804 | if (isprint(p[j])) | |
| 805 | putchar(p[j]); | |
| 806 | else | |
| 807 | putchar('.'); | |
| 808 | } | |
| 809 | } | |
| 810 | printf("\n\n"); | |
| 811 | } | |
| 812 | ||
| 813 | void | |
| 814 | dis_mem(addr, len, info) | |
| 815 | uint32 addr; | |
| 816 | uint32 len; | |
| 817 | struct disassemble_info *info; | |
| 818 | { | |
| 819 | uint32 i; | |
| 820 | unsigned char data[4]; | |
| 821 | ||
| 822 | for (i = addr & -3; i < ((addr & -3) + (len << 2)); i += 4) { | |
| 823 | sis_memory_read(i, data, 4); | |
| 824 | printf(" %08x %02x%02x%02x%02x ", i, data[0],data[1],data[2],data[3]); | |
| 825 | print_insn_sparc(i, info); | |
| 826 | if (i >= 0xfffffffc) break; | |
| 827 | printf("\n"); | |
| 828 | } | |
| 829 | } | |
| 830 | ||
| c906108c SS |
831 | /* Add event to event queue */ |
| 832 | ||
| 833 | void | |
| 834 | event(cfunc, arg, delta) | |
| 835 | void (*cfunc) (); | |
| 836 | int32 arg; | |
| 94110024 | 837 | uint64 delta; |
| c906108c SS |
838 | { |
| 839 | struct evcell *ev1, *evins; | |
| 840 | ||
| 841 | if (ebase.freeq == NULL) { | |
| 842 | printf("Error, too many events in event queue\n"); | |
| 843 | return; | |
| 844 | } | |
| 845 | ev1 = &ebase.eq; | |
| 846 | delta += ebase.simtime; | |
| 847 | while ((ev1->nxt != NULL) && (ev1->nxt->time <= delta)) { | |
| 848 | ev1 = ev1->nxt; | |
| 849 | } | |
| 850 | if (ev1->nxt == NULL) { | |
| 851 | ev1->nxt = ebase.freeq; | |
| 852 | ebase.freeq = ebase.freeq->nxt; | |
| 853 | ev1->nxt->nxt = NULL; | |
| 854 | } else { | |
| 855 | evins = ebase.freeq; | |
| 856 | ebase.freeq = ebase.freeq->nxt; | |
| 857 | evins->nxt = ev1->nxt; | |
| 858 | ev1->nxt = evins; | |
| 859 | } | |
| 860 | ev1->nxt->time = delta; | |
| 861 | ev1->nxt->cfunc = cfunc; | |
| 862 | ev1->nxt->arg = arg; | |
| 863 | } | |
| 864 | ||
| 865 | #if 0 /* apparently not used */ | |
| 866 | void | |
| 867 | stop_event() | |
| 868 | { | |
| 869 | } | |
| 870 | #endif | |
| 871 | ||
| 872 | void | |
| 873 | init_event() | |
| 874 | { | |
| 875 | int32 i; | |
| 876 | ||
| 877 | ebase.eq.nxt = NULL; | |
| 878 | ebase.freeq = evbuf; | |
| 879 | for (i = 0; i < EVENT_MAX; i++) { | |
| 880 | evbuf[i].nxt = &evbuf[i + 1]; | |
| 881 | } | |
| 882 | evbuf[EVENT_MAX - 1].nxt = NULL; | |
| 883 | } | |
| 884 | ||
| 885 | void | |
| 886 | set_int(level, callback, arg) | |
| 887 | int32 level; | |
| 888 | void (*callback) (); | |
| 889 | int32 arg; | |
| 890 | { | |
| 891 | irqarr[level & 0x0f].callback = callback; | |
| 892 | irqarr[level & 0x0f].arg = arg; | |
| 893 | } | |
| 894 | ||
| 895 | /* Advance simulator time */ | |
| 896 | ||
| 897 | void | |
| 898 | advance_time(sregs) | |
| 899 | struct pstate *sregs; | |
| 900 | { | |
| 901 | ||
| 902 | struct evcell *evrem; | |
| 903 | void (*cfunc) (); | |
| 94110024 JS |
904 | uint32 arg; |
| 905 | uint64 endtime; | |
| c906108c SS |
906 | |
| 907 | #ifdef STAT | |
| 908 | sregs->fholdt += sregs->fhold; | |
| 909 | sregs->holdt += sregs->hold; | |
| 910 | sregs->icntt += sregs->icnt; | |
| 911 | #endif | |
| 912 | ||
| 913 | endtime = ebase.simtime + sregs->icnt + sregs->hold + sregs->fhold; | |
| 914 | ||
| 915 | while ((ebase.eq.nxt->time <= (endtime)) && (ebase.eq.nxt != NULL)) { | |
| 916 | ebase.simtime = ebase.eq.nxt->time; | |
| 917 | cfunc = ebase.eq.nxt->cfunc; | |
| 918 | arg = ebase.eq.nxt->arg; | |
| 919 | evrem = ebase.eq.nxt; | |
| 920 | ebase.eq.nxt = ebase.eq.nxt->nxt; | |
| 921 | evrem->nxt = ebase.freeq; | |
| 922 | ebase.freeq = evrem; | |
| 923 | cfunc(arg); | |
| 924 | } | |
| 925 | ebase.simtime = endtime; | |
| 926 | ||
| 927 | } | |
| 928 | ||
| 929 | uint32 | |
| 930 | now() | |
| 931 | { | |
| 932 | return(ebase.simtime); | |
| 933 | } | |
| 934 | ||
| 935 | ||
| 936 | /* Advance time until an external interrupt is seen */ | |
| 937 | ||
| 938 | int | |
| 939 | wait_for_irq() | |
| 940 | { | |
| 941 | struct evcell *evrem; | |
| 942 | void (*cfunc) (); | |
| 94110024 JS |
943 | int32 arg; |
| 944 | uint64 endtime; | |
| c906108c SS |
945 | |
| 946 | if (ebase.eq.nxt == NULL) | |
| 947 | printf("Warning: event queue empty - power-down mode not entered\n"); | |
| 948 | endtime = ebase.simtime; | |
| 949 | while (!ext_irl && (ebase.eq.nxt != NULL)) { | |
| 950 | ebase.simtime = ebase.eq.nxt->time; | |
| 951 | cfunc = ebase.eq.nxt->cfunc; | |
| 952 | arg = ebase.eq.nxt->arg; | |
| 953 | evrem = ebase.eq.nxt; | |
| 954 | ebase.eq.nxt = ebase.eq.nxt->nxt; | |
| 955 | evrem->nxt = ebase.freeq; | |
| 956 | ebase.freeq = evrem; | |
| 957 | cfunc(arg); | |
| 958 | if (ctrl_c) { | |
| 959 | printf("\bwarning: power-down mode interrupted\n"); | |
| 960 | break; | |
| 961 | } | |
| 962 | } | |
| 963 | sregs.pwdtime += ebase.simtime - endtime; | |
| 964 | return (ebase.simtime - endtime); | |
| 965 | } | |
| 966 | ||
| 967 | int | |
| 968 | check_bpt(sregs) | |
| 969 | struct pstate *sregs; | |
| 970 | { | |
| 971 | int32 i; | |
| 972 | ||
| 973 | if ((sregs->bphit) || (sregs->annul)) | |
| 974 | return (0); | |
| 975 | for (i = 0; i < (int32) sregs->bptnum; i++) { | |
| 976 | if (sregs->pc == sregs->bpts[i]) | |
| 977 | return (BPT_HIT); | |
| 978 | } | |
| 979 | return (0); | |
| 980 | } | |
| 981 | ||
| 982 | void | |
| 983 | reset_all() | |
| 984 | { | |
| 985 | init_event(); /* Clear event queue */ | |
| 986 | init_regs(&sregs); | |
| 987 | reset(); | |
| 988 | #ifdef ERRINJ | |
| 989 | errinjstart(); | |
| 990 | #endif | |
| 991 | } | |
| 992 | ||
| 993 | void | |
| 994 | sys_reset() | |
| 995 | { | |
| 996 | reset_all(); | |
| 997 | sregs.trap = 256; /* Force fake reset trap */ | |
| 998 | } | |
| 999 | ||
| 1000 | void | |
| 1001 | sys_halt() | |
| 1002 | { | |
| 1003 | sregs.trap = 257; /* Force fake halt trap */ | |
| 1004 | } | |
| 1005 | ||
| 1006 | #include "ansidecl.h" | |
| 1007 | ||
| c906108c | 1008 | #include <stdarg.h> |
| c906108c SS |
1009 | |
| 1010 | #include "libiberty.h" | |
| 1011 | #include "bfd.h" | |
| 1012 | ||
| 1013 | #define min(A, B) (((A) < (B)) ? (A) : (B)) | |
| 1014 | #define LOAD_ADDRESS 0 | |
| 1015 | ||
| 1016 | int | |
| 1017 | bfd_load(fname) | |
| 1018 | char *fname; | |
| 1019 | { | |
| 1020 | asection *section; | |
| 1021 | bfd *pbfd; | |
| 1022 | const bfd_arch_info_type *arch; | |
| 1023 | ||
| 1024 | pbfd = bfd_openr(fname, 0); | |
| 1025 | ||
| 1026 | if (pbfd == NULL) { | |
| 1027 | printf("open of %s failed\n", fname); | |
| 1028 | return (-1); | |
| 1029 | } | |
| 1030 | if (!bfd_check_format(pbfd, bfd_object)) { | |
| 1031 | printf("file %s doesn't seem to be an object file\n", fname); | |
| 1032 | return (-1); | |
| 1033 | } | |
| 1034 | ||
| 1035 | arch = bfd_get_arch_info (pbfd); | |
| 1036 | if (bfd_little_endian (pbfd) || arch->mach == bfd_mach_sparc_sparclite_le) | |
| 1037 | current_target_byte_order = LITTLE_ENDIAN; | |
| 1038 | else | |
| 1039 | current_target_byte_order = BIG_ENDIAN; | |
| 1040 | if (sis_verbose) | |
| 1041 | printf("file %s is %s-endian.\n", fname, | |
| 1042 | current_target_byte_order == BIG_ENDIAN ? "big" : "little"); | |
| 1043 | ||
| 1044 | if (sis_verbose) | |
| 1045 | printf("loading %s:", fname); | |
| 1046 | for (section = pbfd->sections; section; section = section->next) { | |
| 1047 | if (bfd_get_section_flags(pbfd, section) & SEC_ALLOC) { | |
| 1048 | bfd_vma section_address; | |
| 1049 | unsigned long section_size; | |
| 1050 | const char *section_name; | |
| 1051 | ||
| 1052 | section_name = bfd_get_section_name(pbfd, section); | |
| 1053 | ||
| 1054 | section_address = bfd_get_section_vma(pbfd, section); | |
| 1055 | /* | |
| 1056 | * Adjust sections from a.out files, since they don't carry their | |
| 1057 | * addresses with. | |
| 1058 | */ | |
| 1059 | if (bfd_get_flavour(pbfd) == bfd_target_aout_flavour) { | |
| 1060 | if (strcmp (section_name, ".text") == 0) | |
| 1061 | section_address = bfd_get_start_address (pbfd); | |
| 1062 | else if (strcmp (section_name, ".data") == 0) { | |
| 1063 | /* Read the first 8 bytes of the data section. | |
| 1064 | There should be the string 'DaTa' followed by | |
| 1065 | a word containing the actual section address. */ | |
| 1066 | struct data_marker | |
| 1067 | { | |
| 1068 | char signature[4]; /* 'DaTa' */ | |
| 1069 | unsigned char sdata[4]; /* &sdata */ | |
| 1070 | } marker; | |
| 1071 | bfd_get_section_contents (pbfd, section, &marker, 0, | |
| 1072 | sizeof (marker)); | |
| 1073 | if (strncmp (marker.signature, "DaTa", 4) == 0) | |
| 1074 | { | |
| 1075 | if (current_target_byte_order == BIG_ENDIAN) | |
| 1076 | section_address = bfd_getb32 (marker.sdata); | |
| 1077 | else | |
| 1078 | section_address = bfd_getl32 (marker.sdata); | |
| 1079 | } | |
| 1080 | } | |
| 1081 | } | |
| 1082 | ||
| 1083 | section_size = bfd_section_size(pbfd, section); | |
| 1084 | ||
| 1085 | if (sis_verbose) | |
| 1086 | printf("\nsection %s at 0x%08lx (0x%lx bytes)", | |
| 1087 | section_name, section_address, section_size); | |
| 1088 | ||
| 1089 | /* Text, data or lit */ | |
| 1090 | if (bfd_get_section_flags(pbfd, section) & SEC_LOAD) { | |
| 1091 | file_ptr fptr; | |
| 1092 | ||
| 1093 | fptr = 0; | |
| 1094 | ||
| 1095 | while (section_size > 0) { | |
| 1096 | char buffer[1024]; | |
| 1097 | int count; | |
| 1098 | ||
| 1099 | count = min(section_size, 1024); | |
| 1100 | ||
| 1101 | bfd_get_section_contents(pbfd, section, buffer, fptr, count); | |
| 1102 | ||
| 1103 | sis_memory_write(section_address, buffer, count); | |
| 1104 | ||
| 1105 | section_address += count; | |
| 1106 | fptr += count; | |
| 1107 | section_size -= count; | |
| 1108 | } | |
| 1109 | } else /* BSS */ | |
| 1110 | if (sis_verbose) | |
| 1111 | printf("(not loaded)"); | |
| 1112 | } | |
| 1113 | } | |
| 1114 | if (sis_verbose) | |
| 1115 | printf("\n"); | |
| 1116 | ||
| 1117 | return(bfd_get_start_address (pbfd)); | |
| 1118 | } |