Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
tree: 4ed4711361
Fetching contributors…

Cannot retrieve contributors at this time

file 857 lines (764 sloc) 22.061 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857
/**********************************************************************

vm_dump.c -

$Author$

Copyright (C) 2004-2007 Koichi Sasada

**********************************************************************/


#include "ruby/ruby.h"
#include "addr2line.h"
#include "vm_core.h"

/* see vm_insnhelper.h for the values */
#ifndef VMDEBUG
#define VMDEBUG 0
#endif

#define MAX_POSBUF 128

#define VM_CFP_CNT(th, cfp) \
((rb_control_frame_t *)((th)->stack + (th)->stack_size) - (rb_control_frame_t *)(cfp))

static void
control_frame_dump(rb_thread_t *th, rb_control_frame_t *cfp)
{
    ptrdiff_t pc = -1, bp = -1;
    ptrdiff_t lfp = cfp->lfp - th->stack;
    ptrdiff_t dfp = cfp->dfp - th->stack;
    char lfp_in_heap = ' ', dfp_in_heap = ' ';
    char posbuf[MAX_POSBUF+1];
    int line = 0;
    int nopos = 0;

    const char *magic, *iseq_name = "-", *selfstr = "-", *biseq_name = "-";
    VALUE tmp;

    if (cfp->block_iseq != 0 && BUILTIN_TYPE(cfp->block_iseq) != T_NODE) {
biseq_name = ""; /* RSTRING(cfp->block_iseq->name)->ptr; */
    }

    if (lfp < 0 || (size_t)lfp > th->stack_size) {
lfp = (ptrdiff_t)cfp->lfp;
lfp_in_heap = 'p';
    }
    if (dfp < 0 || (size_t)dfp > th->stack_size) {
dfp = (ptrdiff_t)cfp->dfp;
dfp_in_heap = 'p';
    }
    if (cfp->bp) {
bp = cfp->bp - th->stack;
    }

    switch (VM_FRAME_TYPE(cfp)) {
      case VM_FRAME_MAGIC_TOP:
magic = "TOP";
break;
      case VM_FRAME_MAGIC_METHOD:
magic = "METHOD";
break;
      case VM_FRAME_MAGIC_CLASS:
magic = "CLASS";
break;
      case VM_FRAME_MAGIC_BLOCK:
magic = "BLOCK";
break;
      case VM_FRAME_MAGIC_FINISH:
magic = "FINISH";
nopos = 1;
break;
      case VM_FRAME_MAGIC_CFUNC:
magic = "CFUNC";
break;
      case VM_FRAME_MAGIC_PROC:
magic = "PROC";
break;
      case VM_FRAME_MAGIC_LAMBDA:
magic = "LAMBDA";
break;
      case VM_FRAME_MAGIC_IFUNC:
magic = "IFUNC";
break;
      case VM_FRAME_MAGIC_EVAL:
magic = "EVAL";
break;
      case 0:
magic = "------";
break;
      default:
magic = "(none)";
break;
    }

    if (0) {
tmp = rb_inspect(cfp->self);
selfstr = StringValueCStr(tmp);
    }
    else {
selfstr = "";
    }

    if (nopos) {
/* no name */
    }
    else if (cfp->iseq != 0) {
if (RUBY_VM_IFUNC_P(cfp->iseq)) {
iseq_name = "<ifunc>";
}
else {
pc = cfp->pc - cfp->iseq->iseq_encoded;
iseq_name = RSTRING_PTR(cfp->iseq->name);
line = rb_vm_get_sourceline(cfp);
if (line) {
snprintf(posbuf, MAX_POSBUF, "%s:%d", RSTRING_PTR(cfp->iseq->filename), line);
}
}
    }
    else if (cfp->me) {
iseq_name = rb_id2name(cfp->me->def->original_id);
snprintf(posbuf, MAX_POSBUF, ":%s", iseq_name);
line = -1;
    }

    fprintf(stderr, "c:%04"PRIdPTRDIFF" ",
((rb_control_frame_t *)(th->stack + th->stack_size) - cfp));
    if (pc == -1) {
fprintf(stderr, "p:---- ");
    }
    else {
fprintf(stderr, "p:%04"PRIdPTRDIFF" ", pc);
    }
    fprintf(stderr, "s:%04"PRIdPTRDIFF" b:%04"PRIdPTRDIFF" ", (cfp->sp - th->stack), bp);
    fprintf(stderr, lfp_in_heap == ' ' ? "l:%06"PRIdPTRDIFF" " : "l:%06"PRIxPTRDIFF" ", lfp % 10000);
    fprintf(stderr, dfp_in_heap == ' ' ? "d:%06"PRIdPTRDIFF" " : "d:%06"PRIxPTRDIFF" ", dfp % 10000);
    fprintf(stderr, "%-6s", magic);
    if (line && !nopos) {
fprintf(stderr, " %s", posbuf);
    }
    if (0) {
fprintf(stderr, " \t");
fprintf(stderr, "iseq: %-24s ", iseq_name);
fprintf(stderr, "self: %-24s ", selfstr);
fprintf(stderr, "%-1s ", biseq_name);
    }
    fprintf(stderr, "\n");
}

void
rb_vmdebug_stack_dump_raw(rb_thread_t *th, rb_control_frame_t *cfp)
{
#if 0
VALUE *sp = cfp->sp, *bp = cfp->bp;
VALUE *lfp = cfp->lfp;
VALUE *dfp = cfp->dfp;
VALUE *p, *st, *t;

fprintf(stderr, "-- stack frame ------------\n");
for (p = st = th->stack; p < sp; p++) {
fprintf(stderr, "%04ld (%p): %08"PRIxVALUE, (long)(p - st), p, *p);

t = (VALUE *)*p;
if (th->stack <= t && t < sp) {
fprintf(stderr, " (= %ld)", (long)((VALUE *)GC_GUARDED_PTR_REF(t) - th->stack));
}

if (p == lfp)
fprintf(stderr, " <- lfp");
if (p == dfp)
fprintf(stderr, " <- dfp");
if (p == bp)
fprintf(stderr, " <- bp"); /* should not be */

fprintf(stderr, "\n");
}
#endif

    fprintf(stderr, "-- Control frame information "
"-----------------------------------------------\n");
    while ((void *)cfp < (void *)(th->stack + th->stack_size)) {
control_frame_dump(th, cfp);
cfp++;
    }
    fprintf(stderr, "\n");
}

void
rb_vmdebug_stack_dump_raw_current(void)
{
    rb_thread_t *th = GET_THREAD();
    rb_vmdebug_stack_dump_raw(th, th->cfp);
}

void
rb_vmdebug_env_dump_raw(rb_env_t *env, VALUE *lfp, VALUE *dfp)
{
    int i;
    fprintf(stderr, "-- env --------------------\n");

    while (env) {
fprintf(stderr, "--\n");
for (i = 0; i < env->env_size; i++) {
fprintf(stderr, "%04d: %08"PRIxVALUE" (%p)", -env->local_size + i, env->env[i],
(void *)&env->env[i]);
if (&env->env[i] == lfp)
fprintf(stderr, " <- lfp");
if (&env->env[i] == dfp)
fprintf(stderr, " <- dfp");
fprintf(stderr, "\n");
}

if (env->prev_envval != 0) {
GetEnvPtr(env->prev_envval, env);
}
else {
env = 0;
}
    }
    fprintf(stderr, "---------------------------\n");
}

void
rb_vmdebug_proc_dump_raw(rb_proc_t *proc)
{
    rb_env_t *env;
    char *selfstr;
    VALUE val = rb_inspect(proc->block.self);
    selfstr = StringValueCStr(val);

    fprintf(stderr, "-- proc -------------------\n");
    fprintf(stderr, "self: %s\n", selfstr);
    GetEnvPtr(proc->envval, env);
    rb_vmdebug_env_dump_raw(env, proc->block.lfp, proc->block.dfp);
}

void
rb_vmdebug_stack_dump_th(VALUE thval)
{
    rb_thread_t *th;
    GetThreadPtr(thval, th);
    rb_vmdebug_stack_dump_raw(th, th->cfp);
}

#if VMDEBUG > 2
static void
vm_stack_dump_each(rb_thread_t *th, rb_control_frame_t *cfp)
{
    int i;

    VALUE rstr;
    VALUE *sp = cfp->sp;
    VALUE *lfp = cfp->lfp;
    VALUE *dfp = cfp->dfp;

    int argc = 0, local_size = 0;
    const char *name;
    rb_iseq_t *iseq = cfp->iseq;

    if (iseq == 0) {
if (RUBYVM_CFUNC_FRAME_P(cfp)) {
name = rb_id2name(cfp->me->original_id);
}
else {
name = "?";
}
    }
    else if (RUBY_VM_IFUNC_P(iseq)) {
name = "<ifunc>";
    }
    else {
argc = iseq->argc;
local_size = iseq->local_size;
name = RSTRING_PTR(iseq->name);
    }

    /* stack trace header */

    if (VM_FRAME_TYPE(cfp) == VM_FRAME_MAGIC_METHOD ||
VM_FRAME_TYPE(cfp) == VM_FRAME_MAGIC_TOP ||
VM_FRAME_TYPE(cfp) == VM_FRAME_MAGIC_BLOCK ||
VM_FRAME_TYPE(cfp) == VM_FRAME_MAGIC_CLASS ||
VM_FRAME_TYPE(cfp) == VM_FRAME_MAGIC_PROC ||
VM_FRAME_TYPE(cfp) == VM_FRAME_MAGIC_LAMBDA ||
VM_FRAME_TYPE(cfp) == VM_FRAME_MAGIC_CFUNC ||
VM_FRAME_TYPE(cfp) == VM_FRAME_MAGIC_IFUNC ||
VM_FRAME_TYPE(cfp) == VM_FRAME_MAGIC_EVAL) {

VALUE *ptr = dfp - local_size;

vm_stack_dump_each(th, cfp + 1);
control_frame_dump(th, cfp);

if (lfp != dfp) {
local_size++;
}
for (i = 0; i < argc; i++) {
rstr = rb_inspect(*ptr);
fprintf(stderr, " arg %2d: %8s (%p)\n", i, StringValueCStr(rstr),
(void *)ptr++);
}
for (; i < local_size - 1; i++) {
rstr = rb_inspect(*ptr);
fprintf(stderr, " local %2d: %8s (%p)\n", i, StringValueCStr(rstr),
(void *)ptr++);
}

ptr = cfp->bp;
for (; ptr < sp; ptr++, i++) {
if (*ptr == Qundef) {
rstr = rb_str_new2("undef");
}
else {
rstr = rb_inspect(*ptr);
}
fprintf(stderr, " stack %2d: %8s (%"PRIdPTRDIFF")\n", i, StringValueCStr(rstr),
(ptr - th->stack));
}
    }
    else if (VM_FRAME_TYPE(cfp) == VM_FRAME_MAGIC_FINISH) {
if ((th)->stack + (th)->stack_size > (VALUE *)(cfp + 2)) {
vm_stack_dump_each(th, cfp + 1);
}
else {
/* SDR(); */
}
    }
    else {
rb_bug("unsupport frame type: %08lx", VM_FRAME_TYPE(cfp));
    }
}
#endif

void
rb_vmdebug_debug_print_register(rb_thread_t *th)
{
    rb_control_frame_t *cfp = th->cfp;
    ptrdiff_t pc = -1;
    ptrdiff_t lfp = cfp->lfp - th->stack;
    ptrdiff_t dfp = cfp->dfp - th->stack;
    ptrdiff_t cfpi;

    if (RUBY_VM_NORMAL_ISEQ_P(cfp->iseq)) {
pc = cfp->pc - cfp->iseq->iseq_encoded;
    }

    if (lfp < 0 || (size_t)lfp > th->stack_size)
lfp = -1;
    if (dfp < 0 || (size_t)dfp > th->stack_size)
dfp = -1;

    cfpi = ((rb_control_frame_t *)(th->stack + th->stack_size)) - cfp;
    fprintf(stderr, " [PC] %04"PRIdPTRDIFF", [SP] %04"PRIdPTRDIFF", [LFP] %04"PRIdPTRDIFF", [DFP] %04"PRIdPTRDIFF", [CFP] %04"PRIdPTRDIFF"\n",
pc, (cfp->sp - th->stack), lfp, dfp, cfpi);
}

void
rb_vmdebug_thread_dump_regs(VALUE thval)
{
    rb_thread_t *th;
    GetThreadPtr(thval, th);
    rb_vmdebug_debug_print_register(th);
}

void
rb_vmdebug_debug_print_pre(rb_thread_t *th, rb_control_frame_t *cfp)
{
    rb_iseq_t *iseq = cfp->iseq;

    if (iseq != 0 && VM_FRAME_TYPE(cfp) != VM_FRAME_MAGIC_FINISH) {
VALUE *seq = iseq->iseq;
ptrdiff_t pc = cfp->pc - iseq->iseq_encoded;

printf("%3"PRIdPTRDIFF" ", VM_CFP_CNT(th, cfp));
if (pc >= 0) {
rb_iseq_disasm_insn(0, seq, (size_t)pc, iseq, 0);
}
    }

#if VMDEBUG > 3
    fprintf(stderr, " (1)");
    rb_vmdebug_debug_print_register(th);
#endif
}

void
rb_vmdebug_debug_print_post(rb_thread_t *th, rb_control_frame_t *cfp
#if OPT_STACK_CACHING
, VALUE reg_a, VALUE reg_b
#endif
    )
{
#if VMDEBUG > 9
    SDR2(cfp);
#endif

#if VMDEBUG > 3
    fprintf(stderr, " (2)");
    rb_vmdebug_debug_print_register(th);
#endif
    /* stack_dump_raw(th, cfp); */

#if VMDEBUG > 2
    /* stack_dump_thobj(th); */
    vm_stack_dump_each(th, th->cfp);
#if OPT_STACK_CACHING
    {
VALUE rstr;
rstr = rb_inspect(reg_a);
fprintf(stderr, " sc reg A: %s\n", StringValueCStr(rstr));
rstr = rb_inspect(reg_b);
fprintf(stderr, " sc reg B: %s\n", StringValueCStr(rstr));
    }
#endif
    printf
("--------------------------------------------------------------\n");
#endif
}

#ifdef COLLECT_USAGE_ANALYSIS
/* uh = {
* insn(Fixnum) => ihash(Hash)
* }
* ihash = {
* -1(Fixnum) => count, # insn usage
* 0(Fixnum) => ophash, # operand usage
* }
* ophash = {
* val(interned string) => count(Fixnum)
* }
*/
void
vm_analysis_insn(int insn)
{
    ID usage_hash;
    ID bigram_hash;
    static int prev_insn = -1;

    VALUE uh;
    VALUE ihash;
    VALUE cv;

    CONST_ID(usage_hash, "USAGE_ANALYSIS_INSN");
    CONST_ID(bigram_hash, "USAGE_ANALYSIS_INSN_BIGRAM");
    uh = rb_const_get(rb_cRubyVM, usage_hash);
    if ((ihash = rb_hash_aref(uh, INT2FIX(insn))) == Qnil) {
ihash = rb_hash_new();
rb_hash_aset(uh, INT2FIX(insn), ihash);
    }
    if ((cv = rb_hash_aref(ihash, INT2FIX(-1))) == Qnil) {
cv = INT2FIX(0);
    }
    rb_hash_aset(ihash, INT2FIX(-1), INT2FIX(FIX2INT(cv) + 1));

    /* calc bigram */
    if (prev_insn != -1) {
VALUE bi;
VALUE ary[2];
VALUE cv;

ary[0] = INT2FIX(prev_insn);
ary[1] = INT2FIX(insn);
bi = rb_ary_new4(2, &ary[0]);

uh = rb_const_get(rb_cRubyVM, bigram_hash);
if ((cv = rb_hash_aref(uh, bi)) == Qnil) {
cv = INT2FIX(0);
}
rb_hash_aset(uh, bi, INT2FIX(FIX2INT(cv) + 1));
    }
    prev_insn = insn;
}

/* from disasm.c */
extern VALUE insn_operand_intern(int insn, int op_no, VALUE op,
int len, int pos, VALUE child);

void
vm_analysis_operand(int insn, int n, VALUE op)
{
    ID usage_hash;

    VALUE uh;
    VALUE ihash;
    VALUE ophash;
    VALUE valstr;
    VALUE cv;

    CONST_ID(usage_hash, "USAGE_ANALYSIS_INSN");

    uh = rb_const_get(rb_cRubyVM, usage_hash);
    if ((ihash = rb_hash_aref(uh, INT2FIX(insn))) == Qnil) {
ihash = rb_hash_new();
rb_hash_aset(uh, INT2FIX(insn), ihash);
    }
    if ((ophash = rb_hash_aref(ihash, INT2FIX(n))) == Qnil) {
ophash = rb_hash_new();
rb_hash_aset(ihash, INT2FIX(n), ophash);
    }
    /* intern */
    valstr = insn_operand_intern(insn, n, op, 0, 0, 0);

    /* set count */
    if ((cv = rb_hash_aref(ophash, valstr)) == Qnil) {
cv = INT2FIX(0);
    }
    rb_hash_aset(ophash, valstr, INT2FIX(FIX2INT(cv) + 1));
}

void
vm_analysis_register(int reg, int isset)
{
    ID usage_hash;
    VALUE uh;
    VALUE rhash;
    VALUE valstr;
    static const char regstrs[][5] = {
"pc", /* 0 */
"sp", /* 1 */
"cfp", /* 2 */
"lfp", /* 3 */
"dfp", /* 4 */
"self", /* 5 */
"iseq", /* 6 */
    };
    static const char getsetstr[][4] = {
"get",
"set",
    };
    static VALUE syms[sizeof(regstrs) / sizeof(regstrs[0])][2];

    VALUE cv;

    CONST_ID(usage_hash, "USAGE_ANALYSIS_REGS");
    if (syms[0] == 0) {
char buff[0x10];
int i;

for (i = 0; i < sizeof(regstrs) / sizeof(regstrs[0]); i++) {
int j;
for (j = 0; j < 2; j++) {
snfprintf(stderr, buff, 0x10, "%d %s %-4s", i, getsetstr[j],
regstrs[i]);
syms[i][j] = ID2SYM(rb_intern(buff));
}
}
    }
    valstr = syms[reg][isset];

    uh = rb_const_get(rb_cRubyVM, usage_hash);
    if ((cv = rb_hash_aref(uh, valstr)) == Qnil) {
cv = INT2FIX(0);
    }
    rb_hash_aset(uh, valstr, INT2FIX(FIX2INT(cv) + 1));
}


#endif

VALUE
rb_vmdebug_thread_dump_state(VALUE self)
{
    rb_thread_t *th;
    rb_control_frame_t *cfp;
    GetThreadPtr(self, th);
    cfp = th->cfp;

    fprintf(stderr, "Thread state dump:\n");
    fprintf(stderr, "pc : %p, sp : %p\n", (void *)cfp->pc, (void *)cfp->sp);
    fprintf(stderr, "cfp: %p, lfp: %p, dfp: %p\n", (void *)cfp, (void *)cfp->lfp, (void *)cfp->dfp);

    return Qnil;
}

static int
bugreport_backtrace(void *arg, VALUE file, int line, VALUE method)
{
    const char *filename = NIL_P(file) ? "ruby" : RSTRING_PTR(file);
    if (!*(int *)arg) {
fprintf(stderr, "-- Ruby level backtrace information "
"----------------------------------------\n");
*(int *)arg = 1;
    }
    if (NIL_P(method)) {
fprintf(stderr, "%s:%d:in unknown method\n", filename, line);
    }
    else {
fprintf(stderr, "%s:%d:in `%s'\n", filename, line, RSTRING_PTR(method));
    }
    return 0;
}

#if defined(__FreeBSD__) && defined(__OPTIMIZE__)
#undef HAVE_BACKTRACE
#endif
#if HAVE_BACKTRACE
# include <execinfo.h>
#elif defined(_WIN32)
# include <imagehlp.h>
# ifndef SYMOPT_DEBUG
# define SYMOPT_DEBUG 0x80000000
# endif
# ifndef MAX_SYM_NAME
# define MAX_SYM_NAME 2000
typedef struct {
    DWORD64 Offset;
    WORD Segment;
    ADDRESS_MODE Mode;
} ADDRESS64;
typedef struct {
    DWORD64 Thread;
    DWORD ThCallbackStack;
    DWORD ThCallbackBStore;
    DWORD NextCallback;
    DWORD FramePointer;
    DWORD64 KiCallUserMode;
    DWORD64 KeUserCallbackDispatcher;
    DWORD64 SystemRangeStart;
    DWORD64 KiUserExceptionDispatcher;
    DWORD64 StackBase;
    DWORD64 StackLimit;
    DWORD64 Reserved[5];
} KDHELP64;
typedef struct {
    ADDRESS64 AddrPC;
    ADDRESS64 AddrReturn;
    ADDRESS64 AddrFrame;
    ADDRESS64 AddrStack;
    ADDRESS64 AddrBStore;
    void *FuncTableEntry;
    DWORD64 Params[4];
    BOOL Far;
    BOOL Virtual;
    DWORD64 Reserved[3];
    KDHELP64 KdHelp;
} STACKFRAME64;
typedef struct {
    ULONG SizeOfStruct;
    ULONG TypeIndex;
    ULONG64 Reserved[2];
    ULONG Index;
    ULONG Size;
    ULONG64 ModBase;
    ULONG Flags;
    ULONG64 Value;
    ULONG64 Address;
    ULONG Register;
    ULONG Scope;
    ULONG Tag;
    ULONG NameLen;
    ULONG MaxNameLen;
    char Name[1];
} SYMBOL_INFO;
typedef struct {
    DWORD SizeOfStruct;
    void *Key;
    DWORD LineNumber;
    char *FileName;
    DWORD64 Address;
} IMAGEHLP_LINE64;
typedef void *PREAD_PROCESS_MEMORY_ROUTINE64;
typedef void *PFUNCTION_TABLE_ACCESS_ROUTINE64;
typedef void *PGET_MODULE_BASE_ROUTINE64;
typedef void *PTRANSLATE_ADDRESS_ROUTINE64;
# endif

static void
dump_thread(void *arg)
{
    HANDLE dbghelp;
    BOOL (WINAPI *pSymInitialize)(HANDLE, const char *, BOOL);
    BOOL (WINAPI *pSymCleanup)(HANDLE);
    BOOL (WINAPI *pStackWalk64)(DWORD, HANDLE, HANDLE, STACKFRAME64 *, void *, PREAD_PROCESS_MEMORY_ROUTINE64, PFUNCTION_TABLE_ACCESS_ROUTINE64, PGET_MODULE_BASE_ROUTINE64, PTRANSLATE_ADDRESS_ROUTINE64);
    DWORD64 (WINAPI *pSymGetModuleBase64)(HANDLE, DWORD64);
    BOOL (WINAPI *pSymFromAddr)(HANDLE, DWORD64, DWORD64 *, SYMBOL_INFO *);
    BOOL (WINAPI *pSymGetLineFromAddr64)(HANDLE, DWORD64, DWORD *, IMAGEHLP_LINE64 *);
    HANDLE (WINAPI *pOpenThread)(DWORD, BOOL, DWORD);
    DWORD tid = *(DWORD *)arg;
    HANDLE ph;
    HANDLE th;

    dbghelp = LoadLibrary("dbghelp.dll");
    if (!dbghelp) return;
    pSymInitialize = (BOOL (WINAPI *)(HANDLE, const char *, BOOL))GetProcAddress(dbghelp, "SymInitialize");
    pSymCleanup = (BOOL (WINAPI *)(HANDLE))GetProcAddress(dbghelp, "SymCleanup");
    pStackWalk64 = (BOOL (WINAPI *)(DWORD, HANDLE, HANDLE, STACKFRAME64 *, void *, PREAD_PROCESS_MEMORY_ROUTINE64, PFUNCTION_TABLE_ACCESS_ROUTINE64, PGET_MODULE_BASE_ROUTINE64, PTRANSLATE_ADDRESS_ROUTINE64))GetProcAddress(dbghelp, "StackWalk64");
    pSymGetModuleBase64 = (DWORD64 (WINAPI *)(HANDLE, DWORD64))GetProcAddress(dbghelp, "SymGetModuleBase64");
    pSymFromAddr = (BOOL (WINAPI *)(HANDLE, DWORD64, DWORD64 *, SYMBOL_INFO *))GetProcAddress(dbghelp, "SymFromAddr");
    pSymGetLineFromAddr64 = (BOOL (WINAPI *)(HANDLE, DWORD64, DWORD *, IMAGEHLP_LINE64 *))GetProcAddress(dbghelp, "SymGetLineFromAddr64");
    pOpenThread = (HANDLE (WINAPI *)(DWORD, BOOL, DWORD))GetProcAddress(GetModuleHandle("kernel32.dll"), "OpenThread");
    if (pSymInitialize && pSymCleanup && pStackWalk64 && pSymGetModuleBase64 &&
pSymFromAddr && pSymGetLineFromAddr64 && pOpenThread) {
SymSetOptions(SYMOPT_UNDNAME | SYMOPT_DEFERRED_LOADS | SYMOPT_DEBUG | SYMOPT_LOAD_LINES);
ph = GetCurrentProcess();
pSymInitialize(ph, NULL, TRUE);
th = pOpenThread(THREAD_SUSPEND_RESUME|THREAD_GET_CONTEXT, FALSE, tid);
if (th) {
if (SuspendThread(th) != (DWORD)-1) {
CONTEXT context;
memset(&context, 0, sizeof(context));
context.ContextFlags = CONTEXT_FULL;
if (GetThreadContext(th, &context)) {
char libpath[MAX_PATH];
char buf[sizeof(SYMBOL_INFO) + MAX_SYM_NAME];
SYMBOL_INFO *info = (SYMBOL_INFO *)buf;
DWORD mac;
STACKFRAME64 frame;
memset(&frame, 0, sizeof(frame));
#if defined(_M_AMD64) || defined(__x86_64__)
mac = IMAGE_FILE_MACHINE_AMD64;
frame.AddrPC.Mode = AddrModeFlat;
frame.AddrPC.Offset = context.Rip;
frame.AddrFrame.Mode = AddrModeFlat;
frame.AddrFrame.Offset = context.Rbp;
frame.AddrStack.Mode = AddrModeFlat;
frame.AddrStack.Offset = context.Rsp;
#elif defined(_M_IA64) || defined(__ia64__)
mac = IMAGE_FILE_MACHINE_IA64;
frame.AddrPC.Mode = AddrModeFlat;
frame.AddrPC.Offset = context.StIIP;
frame.AddrBStore.Mode = AddrModeFlat;
frame.AddrBStore.Offset = context.RsBSP;
frame.AddrStack.Mode = AddrModeFlat;
frame.AddrStack.Offset = context.IntSp;
#else /* i386 */
mac = IMAGE_FILE_MACHINE_I386;
frame.AddrPC.Mode = AddrModeFlat;
frame.AddrPC.Offset = context.Eip;
frame.AddrFrame.Mode = AddrModeFlat;
frame.AddrFrame.Offset = context.Ebp;
frame.AddrStack.Mode = AddrModeFlat;
frame.AddrStack.Offset = context.Esp;
#endif

while (pStackWalk64(mac, ph, th, &frame, &context, NULL,
NULL, NULL, NULL)) {
DWORD64 addr = frame.AddrPC.Offset;
IMAGEHLP_LINE64 line;
DWORD64 displacement;
DWORD tmp;

if (addr == frame.AddrReturn.Offset || addr == 0 ||
frame.AddrReturn.Offset == 0)
break;

memset(buf, 0, sizeof(buf));
info->SizeOfStruct = sizeof(SYMBOL_INFO);
info->MaxNameLen = MAX_SYM_NAME;
if (pSymFromAddr(ph, addr, &displacement, info)) {
if (GetModuleFileName((HANDLE)(uintptr_t)pSymGetModuleBase64(ph, addr), libpath, sizeof(libpath)))
fprintf(stderr, "%s", libpath);
fprintf(stderr, "(%s+0x%I64x)",
info->Name, displacement);
}
fprintf(stderr, " [0x%p]", (void *)(VALUE)addr);
memset(&line, 0, sizeof(line));
line.SizeOfStruct = sizeof(line);
if (pSymGetLineFromAddr64(ph, addr, &tmp, &line))
fprintf(stderr, " %s:%lu", line.FileName, line.LineNumber);
fprintf(stderr, "\n");
}
}

ResumeThread(th);
}
CloseHandle(th);
}
pSymCleanup(ph);
    }
    FreeLibrary(dbghelp);
}
#endif

void
rb_vm_bugreport(void)
{
    rb_vm_t *vm = GET_VM();
    if (vm) {
int i = 0;
SDR();

if (rb_backtrace_each(bugreport_backtrace, &i)) {
fputs("\n", stderr);
}
    }

#if HAVE_BACKTRACE || defined(_WIN32)
    fprintf(stderr, "-- C level backtrace information "
"-------------------------------------------\n");

    {
#if defined __MACH__ && defined __APPLE__
fprintf(stderr, "\n");
fprintf(stderr, " See Crash Report log file under "
"~/Library/Logs/CrashReporter or\n");
fprintf(stderr, " /Library/Logs/CrashReporter, for "
"the more detail of.\n");
#elif HAVE_BACKTRACE
#define MAX_NATIVE_TRACE 1024
static void *trace[MAX_NATIVE_TRACE];
int n = backtrace(trace, MAX_NATIVE_TRACE);
char **syms = backtrace_symbols(trace, n);

if (syms) {
#ifdef USE_ELF
rb_dump_backtrace_with_lines(n, trace, syms);
#else
int i;
for (i=0; i<n; i++) {
fprintf(stderr, "%s\n", syms[i]);
}
#endif
free(syms);
}
#elif defined(_WIN32)
DWORD tid = GetCurrentThreadId();
HANDLE th = (HANDLE)_beginthread(dump_thread, 0, &tid);
if (th != (HANDLE)-1)
WaitForSingleObject(th, INFINITE);
#endif
    }

    fprintf(stderr, "\n");
#endif /* HAVE_BACKTRACE */

    fprintf(stderr, "-- Other runtime information "
"-----------------------------------------------\n\n");
    {
int i;

fprintf(stderr, "* Loaded script: %s\n", StringValueCStr(vm->progname));
fprintf(stderr, "\n");
fprintf(stderr, "* Loaded features:\n\n");
for (i=0; i<RARRAY_LEN(vm->loaded_features); i++) {
fprintf(stderr, " %4d %s\n", i, StringValueCStr(RARRAY_PTR(vm->loaded_features)[i]));
}
fprintf(stderr, "\n");

#if __linux__
{
FILE *fp = fopen("/proc/self/maps", "r");
if (fp) {
fprintf(stderr, "* Process memory map:\n\n");

while (!feof(fp)) {
char buff[0x100];
size_t rn = fread(buff, 1, 0x100, fp);
fwrite(buff, 1, rn, stderr);
}

fclose(fp);
fprintf(stderr, "\n\n");
}
}
#endif /* __linux__ */
    }
}
Something went wrong with that request. Please try again.