Ruby  3.1.4p223 (2023-03-30 revision HEAD)
vm_dump.c
1 /**********************************************************************
2 
3  vm_dump.c -
4 
5  $Author$
6 
7  Copyright (C) 2004-2007 Koichi Sasada
8 
9 **********************************************************************/
10 
11 #include "ruby/internal/config.h"
12 
13 #ifdef HAVE_UCONTEXT_H
14 # include <ucontext.h>
15 #endif
16 
17 #ifdef __APPLE__
18 # ifdef HAVE_LIBPROC_H
19 # include <libproc.h>
20 # endif
21 # include <mach/vm_map.h>
22 # include <mach/mach_init.h>
23 # ifdef __LP64__
24 # define vm_region_recurse vm_region_recurse_64
25 # endif
26 /* that is defined in sys/queue.h, and conflicts with
27  * ccan/list/list.h */
28 # undef LIST_HEAD
29 #endif
30 
31 #include "addr2line.h"
32 #include "gc.h"
33 #include "internal.h"
34 #include "internal/variable.h"
35 #include "internal/vm.h"
36 #include "iseq.h"
37 #include "vm_core.h"
38 #include "ractor_core.h"
39 
40 #define MAX_POSBUF 128
41 
42 #define VM_CFP_CNT(ec, cfp) \
43  ((rb_control_frame_t *)((ec)->vm_stack + (ec)->vm_stack_size) - \
44  (rb_control_frame_t *)(cfp))
45 
46 const char *rb_method_type_name(rb_method_type_t type);
47 int ruby_on_ci;
48 
49 static void
50 control_frame_dump(const rb_execution_context_t *ec, const rb_control_frame_t *cfp)
51 {
52  ptrdiff_t pc = -1;
53  ptrdiff_t ep = cfp->ep - ec->vm_stack;
54  char ep_in_heap = ' ';
55  char posbuf[MAX_POSBUF+1];
56  int line = 0;
57  const char *magic, *iseq_name = "-", *selfstr = "-", *biseq_name = "-";
58  VALUE tmp;
59  const rb_iseq_t *iseq = NULL;
60  const rb_callable_method_entry_t *me = rb_vm_frame_method_entry(cfp);
61 
62  if (ep < 0 || (size_t)ep > ec->vm_stack_size) {
63  ep = (ptrdiff_t)cfp->ep;
64  ep_in_heap = 'p';
65  }
66 
67  switch (VM_FRAME_TYPE(cfp)) {
68  case VM_FRAME_MAGIC_TOP:
69  magic = "TOP";
70  break;
71  case VM_FRAME_MAGIC_METHOD:
72  magic = "METHOD";
73  break;
74  case VM_FRAME_MAGIC_CLASS:
75  magic = "CLASS";
76  break;
77  case VM_FRAME_MAGIC_BLOCK:
78  magic = "BLOCK";
79  break;
80  case VM_FRAME_MAGIC_CFUNC:
81  magic = "CFUNC";
82  break;
83  case VM_FRAME_MAGIC_IFUNC:
84  magic = "IFUNC";
85  break;
86  case VM_FRAME_MAGIC_EVAL:
87  magic = "EVAL";
88  break;
89  case VM_FRAME_MAGIC_RESCUE:
90  magic = "RESCUE";
91  break;
92  case 0:
93  magic = "------";
94  break;
95  default:
96  magic = "(none)";
97  break;
98  }
99 
100  if (0) {
101  tmp = rb_inspect(cfp->self);
102  selfstr = StringValueCStr(tmp);
103  }
104  else {
105  selfstr = "";
106  }
107 
108  if (cfp->iseq != 0) {
109 #define RUBY_VM_IFUNC_P(ptr) IMEMO_TYPE_P(ptr, imemo_ifunc)
110  if (RUBY_VM_IFUNC_P(cfp->iseq)) {
111  iseq_name = "<ifunc>";
112  }
113  else if (SYMBOL_P((VALUE)cfp->iseq)) {
114  tmp = rb_sym2str((VALUE)cfp->iseq);
115  iseq_name = RSTRING_PTR(tmp);
116  snprintf(posbuf, MAX_POSBUF, ":%s", iseq_name);
117  line = -1;
118  }
119  else {
120  iseq = cfp->iseq;
121  pc = cfp->pc - iseq->body->iseq_encoded;
122  iseq_name = RSTRING_PTR(iseq->body->location.label);
123  line = rb_vm_get_sourceline(cfp);
124  if (line) {
125  snprintf(posbuf, MAX_POSBUF, "%s:%d", RSTRING_PTR(rb_iseq_path(iseq)), line);
126  }
127  }
128  }
129  else if (me != NULL) {
130  iseq_name = rb_id2name(me->def->original_id);
131  snprintf(posbuf, MAX_POSBUF, ":%s", iseq_name);
132  line = -1;
133  }
134 
135  fprintf(stderr, "c:%04"PRIdPTRDIFF" ",
136  ((rb_control_frame_t *)(ec->vm_stack + ec->vm_stack_size) - cfp));
137  if (pc == -1) {
138  fprintf(stderr, "p:---- ");
139  }
140  else {
141  fprintf(stderr, "p:%04"PRIdPTRDIFF" ", pc);
142  }
143  fprintf(stderr, "s:%04"PRIdPTRDIFF" ", cfp->sp - ec->vm_stack);
144  fprintf(stderr, ep_in_heap == ' ' ? "e:%06"PRIdPTRDIFF" " : "E:%06"PRIxPTRDIFF" ", ep % 10000);
145  fprintf(stderr, "%-6s", magic);
146  if (line) {
147  fprintf(stderr, " %s", posbuf);
148  }
149  if (VM_FRAME_FINISHED_P(cfp)) {
150  fprintf(stderr, " [FINISH]");
151  }
152  if (0) {
153  fprintf(stderr, " \t");
154  fprintf(stderr, "iseq: %-24s ", iseq_name);
155  fprintf(stderr, "self: %-24s ", selfstr);
156  fprintf(stderr, "%-1s ", biseq_name);
157  }
158  fprintf(stderr, "\n");
159 
160  // additional information for CI machines
161  if (ruby_on_ci) {
162  char buff[0x100];
163 
164  if (me) {
165  if (IMEMO_TYPE_P(me, imemo_ment)) {
166  fprintf(stderr, " me:\n");
167  fprintf(stderr, " called_id: %s, type: %s\n", rb_id2name(me->called_id), rb_method_type_name(me->def->type));
168  fprintf(stderr, " owner class: %s\n", rb_raw_obj_info(buff, 0x100, me->owner));
169  if (me->owner != me->defined_class) {
170  fprintf(stderr, " defined_class: %s\n", rb_raw_obj_info(buff, 0x100, me->defined_class));
171  }
172  }
173  else {
174  fprintf(stderr, " me is corrupted (%s)\n", rb_raw_obj_info(buff, 0x100, (VALUE)me));
175  }
176  }
177 
178  fprintf(stderr, " self: %s\n", rb_raw_obj_info(buff, 0x100, cfp->self));
179 
180  if (iseq) {
181  if (iseq->body->local_table_size > 0) {
182  fprintf(stderr, " lvars:\n");
183  for (unsigned int i=0; i<iseq->body->local_table_size; i++) {
184  const VALUE *argv = cfp->ep - cfp->iseq->body->local_table_size - VM_ENV_DATA_SIZE + 1;
185  fprintf(stderr, " %s: %s\n",
186  rb_id2name(iseq->body->local_table[i]),
187  rb_raw_obj_info(buff, 0x100, argv[i]));
188  }
189  }
190  }
191  }
192 }
193 
194 void
195 rb_vmdebug_stack_dump_raw(const rb_execution_context_t *ec, const rb_control_frame_t *cfp)
196 {
197 #if 0
198  VALUE *sp = cfp->sp;
199  const VALUE *ep = cfp->ep;
200  VALUE *p, *st, *t;
201 
202  fprintf(stderr, "-- stack frame ------------\n");
203  for (p = st = ec->vm_stack; p < sp; p++) {
204  fprintf(stderr, "%04ld (%p): %08"PRIxVALUE, (long)(p - st), p, *p);
205 
206  t = (VALUE *)*p;
207  if (ec->vm_stack <= t && t < sp) {
208  fprintf(stderr, " (= %ld)", (long)((VALUE *)GC_GUARDED_PTR_REF((VALUE)t) - ec->vm_stack));
209  }
210 
211  if (p == ep)
212  fprintf(stderr, " <- ep");
213 
214  fprintf(stderr, "\n");
215  }
216 #endif
217 
218  fprintf(stderr, "-- Control frame information "
219  "-----------------------------------------------\n");
220  while ((void *)cfp < (void *)(ec->vm_stack + ec->vm_stack_size)) {
221  control_frame_dump(ec, cfp);
222  cfp++;
223  }
224  fprintf(stderr, "\n");
225 }
226 
227 void
228 rb_vmdebug_stack_dump_raw_current(void)
229 {
230  const rb_execution_context_t *ec = GET_EC();
231  rb_vmdebug_stack_dump_raw(ec, ec->cfp);
232 }
233 
234 void
235 rb_vmdebug_env_dump_raw(const rb_env_t *env, const VALUE *ep)
236 {
237  unsigned int i;
238  fprintf(stderr, "-- env --------------------\n");
239 
240  while (env) {
241  fprintf(stderr, "--\n");
242  for (i = 0; i < env->env_size; i++) {
243  fprintf(stderr, "%04d: %08"PRIxVALUE" (%p)", i, env->env[i], (void *)&env->env[i]);
244  if (&env->env[i] == ep) fprintf(stderr, " <- ep");
245  fprintf(stderr, "\n");
246  }
247 
248  env = rb_vm_env_prev_env(env);
249  }
250  fprintf(stderr, "---------------------------\n");
251 }
252 
253 void
254 rb_vmdebug_proc_dump_raw(rb_proc_t *proc)
255 {
256  const rb_env_t *env;
257  char *selfstr;
258  VALUE val = rb_inspect(vm_block_self(&proc->block));
259  selfstr = StringValueCStr(val);
260 
261  fprintf(stderr, "-- proc -------------------\n");
262  fprintf(stderr, "self: %s\n", selfstr);
263  env = VM_ENV_ENVVAL_PTR(vm_block_ep(&proc->block));
264  rb_vmdebug_env_dump_raw(env, vm_block_ep(&proc->block));
265 }
266 
267 void
268 rb_vmdebug_stack_dump_th(VALUE thval)
269 {
270  rb_thread_t *target_th = rb_thread_ptr(thval);
271  rb_vmdebug_stack_dump_raw(target_th->ec, target_th->ec->cfp);
272 }
273 
274 #if VMDEBUG > 2
275 
276 /* copy from vm.c */
277 static const VALUE *
278 vm_base_ptr(const rb_control_frame_t *cfp)
279 {
280  const rb_control_frame_t *prev_cfp = RUBY_VM_PREVIOUS_CONTROL_FRAME(cfp);
281  const VALUE *bp = prev_cfp->sp + cfp->iseq->body->local_table_size + VM_ENV_DATA_SIZE;
282 
283  if (cfp->iseq->body->type == ISEQ_TYPE_METHOD) {
284  bp += 1;
285  }
286  return bp;
287 }
288 
289 static void
290 vm_stack_dump_each(const rb_execution_context_t *ec, const rb_control_frame_t *cfp)
291 {
292  int i, argc = 0, local_table_size = 0;
293  VALUE rstr;
294  VALUE *sp = cfp->sp;
295  const VALUE *ep = cfp->ep;
296 
297  if (VM_FRAME_RUBYFRAME_P(cfp)) {
298  const rb_iseq_t *iseq = cfp->iseq;
299  argc = iseq->body->param.lead_num;
300  local_table_size = iseq->body->local_table_size;
301  }
302 
303  /* stack trace header */
304 
305  if (VM_FRAME_TYPE(cfp) == VM_FRAME_MAGIC_METHOD||
306  VM_FRAME_TYPE(cfp) == VM_FRAME_MAGIC_TOP ||
307  VM_FRAME_TYPE(cfp) == VM_FRAME_MAGIC_BLOCK ||
308  VM_FRAME_TYPE(cfp) == VM_FRAME_MAGIC_CLASS ||
309  VM_FRAME_TYPE(cfp) == VM_FRAME_MAGIC_CFUNC ||
310  VM_FRAME_TYPE(cfp) == VM_FRAME_MAGIC_IFUNC ||
311  VM_FRAME_TYPE(cfp) == VM_FRAME_MAGIC_EVAL ||
312  VM_FRAME_TYPE(cfp) == VM_FRAME_MAGIC_RESCUE)
313  {
314  const VALUE *ptr = ep - local_table_size;
315 
316  control_frame_dump(ec, cfp);
317 
318  for (i = 0; i < argc; i++) {
319  rstr = rb_inspect(*ptr);
320  fprintf(stderr, " arg %2d: %8s (%p)\n", i, StringValueCStr(rstr),
321  (void *)ptr++);
322  }
323  for (; i < local_table_size - 1; i++) {
324  rstr = rb_inspect(*ptr);
325  fprintf(stderr, " local %2d: %8s (%p)\n", i, StringValueCStr(rstr),
326  (void *)ptr++);
327  }
328 
329  ptr = vm_base_ptr(cfp);
330  for (; ptr < sp; ptr++, i++) {
331  switch (TYPE(*ptr)) {
332  case T_UNDEF:
333  rstr = rb_str_new2("undef");
334  break;
335  case T_IMEMO:
336  rstr = rb_str_new2("imemo"); /* TODO: can put mode detail information */
337  break;
338  default:
339  rstr = rb_inspect(*ptr);
340  break;
341  }
342  fprintf(stderr, " stack %2d: %8s (%"PRIdPTRDIFF")\n", i, StringValueCStr(rstr),
343  (ptr - ec->vm_stack));
344  }
345  }
346  else if (VM_FRAME_FINISHED_P(cfp)) {
347  if (ec->vm_stack + ec->vm_stack_size > (VALUE *)(cfp + 1)) {
348  vm_stack_dump_each(ec, cfp + 1);
349  }
350  else {
351  /* SDR(); */
352  }
353  }
354  else {
355  rb_bug("unsupported frame type: %08lx", VM_FRAME_TYPE(cfp));
356  }
357 }
358 #endif
359 
360 void
361 rb_vmdebug_debug_print_register(const rb_execution_context_t *ec)
362 {
363  rb_control_frame_t *cfp = ec->cfp;
364  ptrdiff_t pc = -1;
365  ptrdiff_t ep = cfp->ep - ec->vm_stack;
366  ptrdiff_t cfpi;
367 
368  if (VM_FRAME_RUBYFRAME_P(cfp)) {
369  pc = cfp->pc - cfp->iseq->body->iseq_encoded;
370  }
371 
372  if (ep < 0 || (size_t)ep > ec->vm_stack_size) {
373  ep = -1;
374  }
375 
376  cfpi = ((rb_control_frame_t *)(ec->vm_stack + ec->vm_stack_size)) - cfp;
377  fprintf(stderr, " [PC] %04"PRIdPTRDIFF", [SP] %04"PRIdPTRDIFF", [EP] %04"PRIdPTRDIFF", [CFP] %04"PRIdPTRDIFF"\n",
378  pc, (cfp->sp - ec->vm_stack), ep, cfpi);
379 }
380 
381 void
382 rb_vmdebug_thread_dump_regs(VALUE thval)
383 {
384  rb_vmdebug_debug_print_register(rb_thread_ptr(thval)->ec);
385 }
386 
387 void
388 rb_vmdebug_debug_print_pre(const rb_execution_context_t *ec, const rb_control_frame_t *cfp, const VALUE *_pc)
389 {
390  const rb_iseq_t *iseq = cfp->iseq;
391 
392  if (iseq != 0) {
393  ptrdiff_t pc = _pc - iseq->body->iseq_encoded;
394  int i;
395 
396  for (i=0; i<(int)VM_CFP_CNT(ec, cfp); i++) {
397  printf(" ");
398  }
399  printf("| ");
400  if(0)printf("[%03ld] ", (long)(cfp->sp - ec->vm_stack));
401 
402  /* printf("%3"PRIdPTRDIFF" ", VM_CFP_CNT(ec, cfp)); */
403  if (pc >= 0) {
404  const VALUE *iseq_original = rb_iseq_original_iseq((rb_iseq_t *)iseq);
405 
406  rb_iseq_disasm_insn(0, iseq_original, (size_t)pc, iseq, 0);
407  }
408  }
409 
410 #if VMDEBUG > 3
411  fprintf(stderr, " (1)");
412  rb_vmdebug_debug_print_register(ec);
413 #endif
414 }
415 
416 void
417 rb_vmdebug_debug_print_post(const rb_execution_context_t *ec, const rb_control_frame_t *cfp
418 #if OPT_STACK_CACHING
419  , VALUE reg_a, VALUE reg_b
420 #endif
421  )
422 {
423 #if VMDEBUG > 9
424  SDR2(cfp);
425 #endif
426 
427 #if VMDEBUG > 3
428  fprintf(stderr, " (2)");
429  rb_vmdebug_debug_print_register(ec);
430 #endif
431  /* stack_dump_raw(ec, cfp); */
432 
433 #if VMDEBUG > 2
434  /* stack_dump_thobj(ec); */
435  vm_stack_dump_each(ec, ec->cfp);
436 
437 #if OPT_STACK_CACHING
438  {
439  VALUE rstr;
440  rstr = rb_inspect(reg_a);
441  fprintf(stderr, " sc reg A: %s\n", StringValueCStr(rstr));
442  rstr = rb_inspect(reg_b);
443  fprintf(stderr, " sc reg B: %s\n", StringValueCStr(rstr));
444  }
445 #endif
446  printf
447  ("--------------------------------------------------------------\n");
448 #endif
449 }
450 
451 VALUE
452 rb_vmdebug_thread_dump_state(VALUE self)
453 {
454  rb_thread_t *th = rb_thread_ptr(self);
455  rb_control_frame_t *cfp = th->ec->cfp;
456 
457  fprintf(stderr, "Thread state dump:\n");
458  fprintf(stderr, "pc : %p, sp : %p\n", (void *)cfp->pc, (void *)cfp->sp);
459  fprintf(stderr, "cfp: %p, ep : %p\n", (void *)cfp, (void *)cfp->ep);
460 
461  return Qnil;
462 }
463 
464 #if defined __APPLE__
465 # if __DARWIN_UNIX03
466 # define MCTX_SS_REG(reg) __ss.__##reg
467 # else
468 # define MCTX_SS_REG(reg) ss.reg
469 # endif
470 #endif
471 
472 #if defined(HAVE_BACKTRACE)
473 # define USE_BACKTRACE 1
474 # ifdef HAVE_LIBUNWIND
475 # undef backtrace
476 # define backtrace unw_backtrace
477 # elif defined(__APPLE__) && defined(__x86_64__) && defined(HAVE_LIBUNWIND_H)
478 # define UNW_LOCAL_ONLY
479 # include <libunwind.h>
480 # include <sys/mman.h>
481 # undef backtrace
482 int
483 backtrace(void **trace, int size)
484 {
485  unw_cursor_t cursor; unw_context_t uc;
486  unw_word_t ip;
487  int n = 0;
488 
489  unw_getcontext(&uc);
490  unw_init_local(&cursor, &uc);
491  while (unw_step(&cursor) > 0) {
492  unw_get_reg(&cursor, UNW_REG_IP, &ip);
493  trace[n++] = (void *)ip;
494  {
495  char buf[256];
496  unw_get_proc_name(&cursor, buf, 256, &ip);
497  if (strncmp("_sigtramp", buf, sizeof("_sigtramp")) == 0) {
498  goto darwin_sigtramp;
499  }
500  }
501  }
502  return n;
503 darwin_sigtramp:
504  /* darwin's bundled libunwind doesn't support signal trampoline */
505  {
506  ucontext_t *uctx;
507  char vec[1];
508  int r;
509  /* get previous frame information from %rbx at _sigtramp and set values to cursor
510  * http://www.opensource.apple.com/source/Libc/Libc-825.25/i386/sys/_sigtramp.s
511  * http://www.opensource.apple.com/source/libunwind/libunwind-35.1/src/unw_getcontext.s
512  */
513  unw_get_reg(&cursor, UNW_X86_64_RBX, &ip);
514  uctx = (ucontext_t *)ip;
515  unw_set_reg(&cursor, UNW_X86_64_RAX, uctx->uc_mcontext->MCTX_SS_REG(rax));
516  unw_set_reg(&cursor, UNW_X86_64_RBX, uctx->uc_mcontext->MCTX_SS_REG(rbx));
517  unw_set_reg(&cursor, UNW_X86_64_RCX, uctx->uc_mcontext->MCTX_SS_REG(rcx));
518  unw_set_reg(&cursor, UNW_X86_64_RDX, uctx->uc_mcontext->MCTX_SS_REG(rdx));
519  unw_set_reg(&cursor, UNW_X86_64_RDI, uctx->uc_mcontext->MCTX_SS_REG(rdi));
520  unw_set_reg(&cursor, UNW_X86_64_RSI, uctx->uc_mcontext->MCTX_SS_REG(rsi));
521  unw_set_reg(&cursor, UNW_X86_64_RBP, uctx->uc_mcontext->MCTX_SS_REG(rbp));
522  unw_set_reg(&cursor, UNW_X86_64_RSP, 8+(uctx->uc_mcontext->MCTX_SS_REG(rsp)));
523  unw_set_reg(&cursor, UNW_X86_64_R8, uctx->uc_mcontext->MCTX_SS_REG(r8));
524  unw_set_reg(&cursor, UNW_X86_64_R9, uctx->uc_mcontext->MCTX_SS_REG(r9));
525  unw_set_reg(&cursor, UNW_X86_64_R10, uctx->uc_mcontext->MCTX_SS_REG(r10));
526  unw_set_reg(&cursor, UNW_X86_64_R11, uctx->uc_mcontext->MCTX_SS_REG(r11));
527  unw_set_reg(&cursor, UNW_X86_64_R12, uctx->uc_mcontext->MCTX_SS_REG(r12));
528  unw_set_reg(&cursor, UNW_X86_64_R13, uctx->uc_mcontext->MCTX_SS_REG(r13));
529  unw_set_reg(&cursor, UNW_X86_64_R14, uctx->uc_mcontext->MCTX_SS_REG(r14));
530  unw_set_reg(&cursor, UNW_X86_64_R15, uctx->uc_mcontext->MCTX_SS_REG(r15));
531  ip = uctx->uc_mcontext->MCTX_SS_REG(rip);
532 
533  /* There are 4 cases for SEGV:
534  * (1) called invalid address
535  * (2) read or write invalid address
536  * (3) received signal
537  *
538  * Detail:
539  * (1) called invalid address
540  * In this case, saved ip is invalid address.
541  * It needs to just save the address for the information,
542  * skip the frame, and restore the frame calling the
543  * invalid address from %rsp.
544  * The problem is how to check whether the ip is valid or not.
545  * This code uses mincore(2) and assume the address's page is
546  * incore/referenced or not reflects the problem.
547  * Note that High Sierra's mincore(2) may return -128.
548  * (2) read or write invalid address
549  * saved ip is valid. just restart backtracing.
550  * (3) received signal in user space
551  * Same as (2).
552  * (4) received signal in kernel
553  * In this case saved ip points just after syscall, but registers are
554  * already overwritten by kernel. To fix register consistency,
555  * skip libc's kernel wrapper.
556  * To detect this case, just previous two bytes of ip is "\x0f\x05",
557  * syscall instruction of x86_64.
558  */
559  r = mincore((const void *)ip, 1, vec);
560  if (r || vec[0] <= 0 || memcmp((const char *)ip-2, "\x0f\x05", 2) == 0) {
561  /* if segv is caused by invalid call or signal received in syscall */
562  /* the frame is invalid; skip */
563  trace[n++] = (void *)ip;
564  ip = *(unw_word_t*)uctx->uc_mcontext->MCTX_SS_REG(rsp);
565  }
566  trace[n++] = (void *)ip;
567  unw_set_reg(&cursor, UNW_REG_IP, ip);
568  }
569  while (unw_step(&cursor) > 0) {
570  unw_get_reg(&cursor, UNW_REG_IP, &ip);
571  trace[n++] = (void *)ip;
572  }
573  return n;
574 }
575 # elif defined(BROKEN_BACKTRACE)
576 # undef USE_BACKTRACE
577 # define USE_BACKTRACE 0
578 # endif
579 #else
580 # define USE_BACKTRACE 0
581 #endif
582 
583 #if USE_BACKTRACE
584 # include <execinfo.h>
585 #elif defined(_WIN32)
586 # include <imagehlp.h>
587 # ifndef SYMOPT_DEBUG
588 # define SYMOPT_DEBUG 0x80000000
589 # endif
590 # ifndef MAX_SYM_NAME
591 # define MAX_SYM_NAME 2000
592 typedef struct {
593  DWORD64 Offset;
594  WORD Segment;
595  ADDRESS_MODE Mode;
596 } ADDRESS64;
597 typedef struct {
598  DWORD64 Thread;
599  DWORD ThCallbackStack;
600  DWORD ThCallbackBStore;
601  DWORD NextCallback;
602  DWORD FramePointer;
603  DWORD64 KiCallUserMode;
604  DWORD64 KeUserCallbackDispatcher;
605  DWORD64 SystemRangeStart;
606  DWORD64 KiUserExceptionDispatcher;
607  DWORD64 StackBase;
608  DWORD64 StackLimit;
609  DWORD64 Reserved[5];
610 } KDHELP64;
611 typedef struct {
612  ADDRESS64 AddrPC;
613  ADDRESS64 AddrReturn;
614  ADDRESS64 AddrFrame;
615  ADDRESS64 AddrStack;
616  ADDRESS64 AddrBStore;
617  void *FuncTableEntry;
618  DWORD64 Params[4];
619  BOOL Far;
620  BOOL Virtual;
621  DWORD64 Reserved[3];
622  KDHELP64 KdHelp;
623 } STACKFRAME64;
624 typedef struct {
625  ULONG SizeOfStruct;
626  ULONG TypeIndex;
627  ULONG64 Reserved[2];
628  ULONG Index;
629  ULONG Size;
630  ULONG64 ModBase;
631  ULONG Flags;
632  ULONG64 Value;
633  ULONG64 Address;
634  ULONG Register;
635  ULONG Scope;
636  ULONG Tag;
637  ULONG NameLen;
638  ULONG MaxNameLen;
639  char Name[1];
640 } SYMBOL_INFO;
641 typedef struct {
642  DWORD SizeOfStruct;
643  void *Key;
644  DWORD LineNumber;
645  char *FileName;
646  DWORD64 Address;
647 } IMAGEHLP_LINE64;
648 typedef void *PREAD_PROCESS_MEMORY_ROUTINE64;
649 typedef void *PFUNCTION_TABLE_ACCESS_ROUTINE64;
650 typedef void *PGET_MODULE_BASE_ROUTINE64;
651 typedef void *PTRANSLATE_ADDRESS_ROUTINE64;
652 # endif
653 
654 static void
655 dump_thread(void *arg)
656 {
657  HANDLE dbghelp;
658  BOOL (WINAPI *pSymInitialize)(HANDLE, const char *, BOOL);
659  BOOL (WINAPI *pSymCleanup)(HANDLE);
660  BOOL (WINAPI *pStackWalk64)(DWORD, HANDLE, HANDLE, STACKFRAME64 *, void *, PREAD_PROCESS_MEMORY_ROUTINE64, PFUNCTION_TABLE_ACCESS_ROUTINE64, PGET_MODULE_BASE_ROUTINE64, PTRANSLATE_ADDRESS_ROUTINE64);
661  DWORD64 (WINAPI *pSymGetModuleBase64)(HANDLE, DWORD64);
662  BOOL (WINAPI *pSymFromAddr)(HANDLE, DWORD64, DWORD64 *, SYMBOL_INFO *);
663  BOOL (WINAPI *pSymGetLineFromAddr64)(HANDLE, DWORD64, DWORD *, IMAGEHLP_LINE64 *);
664  HANDLE (WINAPI *pOpenThread)(DWORD, BOOL, DWORD);
665  DWORD tid = *(DWORD *)arg;
666  HANDLE ph;
667  HANDLE th;
668 
669  dbghelp = LoadLibrary("dbghelp.dll");
670  if (!dbghelp) return;
671  pSymInitialize = (BOOL (WINAPI *)(HANDLE, const char *, BOOL))GetProcAddress(dbghelp, "SymInitialize");
672  pSymCleanup = (BOOL (WINAPI *)(HANDLE))GetProcAddress(dbghelp, "SymCleanup");
673  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");
674  pSymGetModuleBase64 = (DWORD64 (WINAPI *)(HANDLE, DWORD64))GetProcAddress(dbghelp, "SymGetModuleBase64");
675  pSymFromAddr = (BOOL (WINAPI *)(HANDLE, DWORD64, DWORD64 *, SYMBOL_INFO *))GetProcAddress(dbghelp, "SymFromAddr");
676  pSymGetLineFromAddr64 = (BOOL (WINAPI *)(HANDLE, DWORD64, DWORD *, IMAGEHLP_LINE64 *))GetProcAddress(dbghelp, "SymGetLineFromAddr64");
677  pOpenThread = (HANDLE (WINAPI *)(DWORD, BOOL, DWORD))GetProcAddress(GetModuleHandle("kernel32.dll"), "OpenThread");
678  if (pSymInitialize && pSymCleanup && pStackWalk64 && pSymGetModuleBase64 &&
679  pSymFromAddr && pSymGetLineFromAddr64 && pOpenThread) {
680  SymSetOptions(SYMOPT_UNDNAME | SYMOPT_DEFERRED_LOADS | SYMOPT_DEBUG | SYMOPT_LOAD_LINES);
681  ph = GetCurrentProcess();
682  pSymInitialize(ph, NULL, TRUE);
683  th = pOpenThread(THREAD_SUSPEND_RESUME|THREAD_GET_CONTEXT, FALSE, tid);
684  if (th) {
685  if (SuspendThread(th) != (DWORD)-1) {
686  CONTEXT context;
687  memset(&context, 0, sizeof(context));
688  context.ContextFlags = CONTEXT_FULL;
689  if (GetThreadContext(th, &context)) {
690  char libpath[MAX_PATH];
691  char buf[sizeof(SYMBOL_INFO) + MAX_SYM_NAME];
692  SYMBOL_INFO *info = (SYMBOL_INFO *)buf;
693  DWORD mac;
694  STACKFRAME64 frame;
695  memset(&frame, 0, sizeof(frame));
696 #if defined(_M_AMD64) || defined(__x86_64__)
697  mac = IMAGE_FILE_MACHINE_AMD64;
698  frame.AddrPC.Mode = AddrModeFlat;
699  frame.AddrPC.Offset = context.Rip;
700  frame.AddrFrame.Mode = AddrModeFlat;
701  frame.AddrFrame.Offset = context.Rbp;
702  frame.AddrStack.Mode = AddrModeFlat;
703  frame.AddrStack.Offset = context.Rsp;
704 #else /* i386 */
705  mac = IMAGE_FILE_MACHINE_I386;
706  frame.AddrPC.Mode = AddrModeFlat;
707  frame.AddrPC.Offset = context.Eip;
708  frame.AddrFrame.Mode = AddrModeFlat;
709  frame.AddrFrame.Offset = context.Ebp;
710  frame.AddrStack.Mode = AddrModeFlat;
711  frame.AddrStack.Offset = context.Esp;
712 #endif
713 
714  while (pStackWalk64(mac, ph, th, &frame, &context, NULL,
715  NULL, NULL, NULL)) {
716  DWORD64 addr = frame.AddrPC.Offset;
717  IMAGEHLP_LINE64 line;
718  DWORD64 displacement;
719  DWORD tmp;
720 
721  if (addr == frame.AddrReturn.Offset || addr == 0 ||
722  frame.AddrReturn.Offset == 0)
723  break;
724 
725  memset(buf, 0, sizeof(buf));
726  info->SizeOfStruct = sizeof(SYMBOL_INFO);
727  info->MaxNameLen = MAX_SYM_NAME;
728  if (pSymFromAddr(ph, addr, &displacement, info)) {
729  if (GetModuleFileName((HANDLE)(uintptr_t)pSymGetModuleBase64(ph, addr), libpath, sizeof(libpath)))
730  fprintf(stderr, "%s", libpath);
731  fprintf(stderr, "(%s+0x%"PRI_64_PREFIX"x)",
732  info->Name, displacement);
733  }
734  fprintf(stderr, " [0x%p]", (void *)(VALUE)addr);
735  memset(&line, 0, sizeof(line));
736  line.SizeOfStruct = sizeof(line);
737  if (pSymGetLineFromAddr64(ph, addr, &tmp, &line))
738  fprintf(stderr, " %s:%lu", line.FileName, line.LineNumber);
739  fprintf(stderr, "\n");
740  }
741  }
742 
743  ResumeThread(th);
744  }
745  CloseHandle(th);
746  }
747  pSymCleanup(ph);
748  }
749  FreeLibrary(dbghelp);
750 }
751 #endif
752 
753 void
754 rb_print_backtrace(void)
755 {
756 #if USE_BACKTRACE
757 #define MAX_NATIVE_TRACE 1024
758  static void *trace[MAX_NATIVE_TRACE];
759  int n = (int)backtrace(trace, MAX_NATIVE_TRACE);
760 #if (defined(USE_ELF) || defined(HAVE_MACH_O_LOADER_H)) && defined(HAVE_DLADDR) && !defined(__sparc)
761  rb_dump_backtrace_with_lines(n, trace);
762 #else
763  char **syms = backtrace_symbols(trace, n);
764  if (syms) {
765  int i;
766  for (i=0; i<n; i++) {
767  fprintf(stderr, "%s\n", syms[i]);
768  }
769  free(syms);
770  }
771 #endif
772 #elif defined(_WIN32)
773  DWORD tid = GetCurrentThreadId();
774  HANDLE th = (HANDLE)_beginthread(dump_thread, 0, &tid);
775  if (th != (HANDLE)-1)
776  WaitForSingleObject(th, INFINITE);
777 #endif
778 }
779 
780 #ifdef HAVE_LIBPROCSTAT
781 #include "missing/procstat_vm.c"
782 #endif
783 
784 #if defined __linux__
785 # if defined __x86_64__ || defined __i386__ || defined __aarch64__ || defined __arm__ || defined __riscv
786 # define HAVE_PRINT_MACHINE_REGISTERS 1
787 # endif
788 #elif defined __APPLE__
789 # if defined __x86_64__ || defined __i386__ || defined __aarch64__
790 # define HAVE_PRINT_MACHINE_REGISTERS 1
791 # endif
792 #endif
793 
794 #ifdef HAVE_PRINT_MACHINE_REGISTERS
795 static int
796 print_machine_register(size_t reg, const char *reg_name, int col_count, int max_col)
797 {
798  int ret;
799  char buf[64];
800  static const int size_width = sizeof(size_t) * CHAR_BIT / 4;
801 
802  ret = snprintf(buf, sizeof(buf), " %3.3s: 0x%.*" PRIxSIZE, reg_name, size_width, reg);
803  if (col_count + ret > max_col) {
804  fputs("\n", stderr);
805  col_count = 0;
806  }
807  col_count += ret;
808  fputs(buf, stderr);
809  return col_count;
810 }
811 # ifdef __linux__
812 # if defined(__x86_64__) || defined(__i386__)
813 # define dump_machine_register(reg) (col_count = print_machine_register(mctx->gregs[REG_##reg], #reg, col_count, 80))
814 # elif defined(__aarch64__) || defined(__arm__) || defined(__riscv)
815 # define dump_machine_register(reg, regstr) (col_count = print_machine_register(reg, regstr, col_count, 80))
816 # endif
817 # elif defined __APPLE__
818 # if defined(__aarch64__)
819 # define dump_machine_register(reg, regstr) (col_count = print_machine_register(mctx->MCTX_SS_REG(reg), regstr, col_count, 80))
820 # else
821 # define dump_machine_register(reg) (col_count = print_machine_register(mctx->MCTX_SS_REG(reg), #reg, col_count, 80))
822 # endif
823 # endif
824 
825 static void
826 rb_dump_machine_register(const ucontext_t *ctx)
827 {
828  int col_count = 0;
829  if (!ctx) return;
830 
831  fprintf(stderr, "-- Machine register context "
832  "------------------------------------------------\n");
833 
834 # if defined __linux__
835  {
836  const mcontext_t *const mctx = &ctx->uc_mcontext;
837 # if defined __x86_64__
838  dump_machine_register(RIP);
839  dump_machine_register(RBP);
840  dump_machine_register(RSP);
841  dump_machine_register(RAX);
842  dump_machine_register(RBX);
843  dump_machine_register(RCX);
844  dump_machine_register(RDX);
845  dump_machine_register(RDI);
846  dump_machine_register(RSI);
847  dump_machine_register(R8);
848  dump_machine_register(R9);
849  dump_machine_register(R10);
850  dump_machine_register(R11);
851  dump_machine_register(R12);
852  dump_machine_register(R13);
853  dump_machine_register(R14);
854  dump_machine_register(R15);
855  dump_machine_register(EFL);
856 # elif defined __i386__
857  dump_machine_register(GS);
858  dump_machine_register(FS);
859  dump_machine_register(ES);
860  dump_machine_register(DS);
861  dump_machine_register(EDI);
862  dump_machine_register(ESI);
863  dump_machine_register(EBP);
864  dump_machine_register(ESP);
865  dump_machine_register(EBX);
866  dump_machine_register(EDX);
867  dump_machine_register(ECX);
868  dump_machine_register(EAX);
869  dump_machine_register(TRAPNO);
870  dump_machine_register(ERR);
871  dump_machine_register(EIP);
872  dump_machine_register(CS);
873  dump_machine_register(EFL);
874  dump_machine_register(UESP);
875  dump_machine_register(SS);
876 # elif defined __aarch64__
877  dump_machine_register(mctx->regs[0], "x0");
878  dump_machine_register(mctx->regs[1], "x1");
879  dump_machine_register(mctx->regs[2], "x2");
880  dump_machine_register(mctx->regs[3], "x3");
881  dump_machine_register(mctx->regs[4], "x4");
882  dump_machine_register(mctx->regs[5], "x5");
883  dump_machine_register(mctx->regs[6], "x6");
884  dump_machine_register(mctx->regs[7], "x7");
885  dump_machine_register(mctx->regs[18], "x18");
886  dump_machine_register(mctx->regs[19], "x19");
887  dump_machine_register(mctx->regs[20], "x20");
888  dump_machine_register(mctx->regs[21], "x21");
889  dump_machine_register(mctx->regs[22], "x22");
890  dump_machine_register(mctx->regs[23], "x23");
891  dump_machine_register(mctx->regs[24], "x24");
892  dump_machine_register(mctx->regs[25], "x25");
893  dump_machine_register(mctx->regs[26], "x26");
894  dump_machine_register(mctx->regs[27], "x27");
895  dump_machine_register(mctx->regs[28], "x28");
896  dump_machine_register(mctx->regs[29], "x29");
897  dump_machine_register(mctx->sp, "sp");
898  dump_machine_register(mctx->fault_address, "fault_address");
899 # elif defined __arm__
900  dump_machine_register(mctx->arm_r0, "r0");
901  dump_machine_register(mctx->arm_r1, "r1");
902  dump_machine_register(mctx->arm_r2, "r2");
903  dump_machine_register(mctx->arm_r3, "r3");
904  dump_machine_register(mctx->arm_r4, "r4");
905  dump_machine_register(mctx->arm_r5, "r5");
906  dump_machine_register(mctx->arm_r6, "r6");
907  dump_machine_register(mctx->arm_r7, "r7");
908  dump_machine_register(mctx->arm_r8, "r8");
909  dump_machine_register(mctx->arm_r9, "r9");
910  dump_machine_register(mctx->arm_r10, "r10");
911  dump_machine_register(mctx->arm_sp, "sp");
912  dump_machine_register(mctx->fault_address, "fault_address");
913 # elif defined __riscv
914  dump_machine_register(mctx->__gregs[REG_SP], "sp");
915  dump_machine_register(mctx->__gregs[REG_S0], "s0");
916  dump_machine_register(mctx->__gregs[REG_S1], "s1");
917  dump_machine_register(mctx->__gregs[REG_A0], "a0");
918  dump_machine_register(mctx->__gregs[REG_A0+1], "a1");
919  dump_machine_register(mctx->__gregs[REG_A0+2], "a2");
920  dump_machine_register(mctx->__gregs[REG_A0+3], "a3");
921  dump_machine_register(mctx->__gregs[REG_A0+4], "a4");
922  dump_machine_register(mctx->__gregs[REG_A0+5], "a5");
923  dump_machine_register(mctx->__gregs[REG_A0+6], "a6");
924  dump_machine_register(mctx->__gregs[REG_A0+7], "a7");
925  dump_machine_register(mctx->__gregs[REG_S2], "s2");
926  dump_machine_register(mctx->__gregs[REG_S2+1], "s3");
927  dump_machine_register(mctx->__gregs[REG_S2+2], "s4");
928  dump_machine_register(mctx->__gregs[REG_S2+3], "s5");
929  dump_machine_register(mctx->__gregs[REG_S2+4], "s6");
930  dump_machine_register(mctx->__gregs[REG_S2+5], "s7");
931  dump_machine_register(mctx->__gregs[REG_S2+6], "s8");
932  dump_machine_register(mctx->__gregs[REG_S2+7], "s9");
933  dump_machine_register(mctx->__gregs[REG_S2+8], "s10");
934  dump_machine_register(mctx->__gregs[REG_S2+9], "s11");
935 # endif
936  }
937 # elif defined __APPLE__
938  {
939  const mcontext_t mctx = ctx->uc_mcontext;
940 # if defined __x86_64__
941  dump_machine_register(rax);
942  dump_machine_register(rbx);
943  dump_machine_register(rcx);
944  dump_machine_register(rdx);
945  dump_machine_register(rdi);
946  dump_machine_register(rsi);
947  dump_machine_register(rbp);
948  dump_machine_register(rsp);
949  dump_machine_register(r8);
950  dump_machine_register(r9);
951  dump_machine_register(r10);
952  dump_machine_register(r11);
953  dump_machine_register(r12);
954  dump_machine_register(r13);
955  dump_machine_register(r14);
956  dump_machine_register(r15);
957  dump_machine_register(rip);
958  dump_machine_register(rflags);
959 # elif defined __i386__
960  dump_machine_register(eax);
961  dump_machine_register(ebx);
962  dump_machine_register(ecx);
963  dump_machine_register(edx);
964  dump_machine_register(edi);
965  dump_machine_register(esi);
966  dump_machine_register(ebp);
967  dump_machine_register(esp);
968  dump_machine_register(ss);
969  dump_machine_register(eflags);
970  dump_machine_register(eip);
971  dump_machine_register(cs);
972  dump_machine_register(ds);
973  dump_machine_register(es);
974  dump_machine_register(fs);
975  dump_machine_register(gs);
976 # elif defined __aarch64__
977  dump_machine_register(x[0], "x0");
978  dump_machine_register(x[1], "x1");
979  dump_machine_register(x[2], "x2");
980  dump_machine_register(x[3], "x3");
981  dump_machine_register(x[4], "x4");
982  dump_machine_register(x[5], "x5");
983  dump_machine_register(x[6], "x6");
984  dump_machine_register(x[7], "x7");
985  dump_machine_register(x[18], "x18");
986  dump_machine_register(x[19], "x19");
987  dump_machine_register(x[20], "x20");
988  dump_machine_register(x[21], "x21");
989  dump_machine_register(x[22], "x22");
990  dump_machine_register(x[23], "x23");
991  dump_machine_register(x[24], "x24");
992  dump_machine_register(x[25], "x25");
993  dump_machine_register(x[26], "x26");
994  dump_machine_register(x[27], "x27");
995  dump_machine_register(x[28], "x28");
996  dump_machine_register(lr, "lr");
997  dump_machine_register(fp, "fp");
998  dump_machine_register(sp, "sp");
999 # endif
1000  }
1001 # endif
1002  fprintf(stderr, "\n\n");
1003 }
1004 #else
1005 # define rb_dump_machine_register(ctx) ((void)0)
1006 #endif /* HAVE_PRINT_MACHINE_REGISTERS */
1007 
1008 void
1009 rb_vm_bugreport(const void *ctx)
1010 {
1011 #if RUBY_DEVEL
1012  const char *cmd = getenv("RUBY_ON_BUG");
1013  if (cmd) {
1014  char buf[0x100];
1015  snprintf(buf, sizeof(buf), "%s %"PRI_PIDT_PREFIX"d", cmd, getpid());
1016  int r = system(buf);
1017  if (r == -1) {
1018  snprintf(buf, sizeof(buf), "Launching RUBY_ON_BUG command failed.");
1019  }
1020  }
1021 #endif
1022 
1023 #ifdef __linux__
1024 # define PROC_MAPS_NAME "/proc/self/maps"
1025 #endif
1026 #ifdef PROC_MAPS_NAME
1027  enum {other_runtime_info = 1};
1028 #else
1029  enum {other_runtime_info = 0};
1030 #endif
1031  const rb_vm_t *const vm = GET_VM();
1032  const rb_execution_context_t *ec = rb_current_execution_context(false);
1033 
1034  if (vm && ec) {
1035  SDR();
1036  rb_backtrace_print_as_bugreport();
1037  fputs("\n", stderr);
1038  }
1039 
1040  rb_dump_machine_register(ctx);
1041 
1042 #if USE_BACKTRACE || defined(_WIN32)
1043  fprintf(stderr, "-- C level backtrace information "
1044  "-------------------------------------------\n");
1045  rb_print_backtrace();
1046 
1047 
1048  fprintf(stderr, "\n");
1049 #endif /* USE_BACKTRACE */
1050 
1051  if (other_runtime_info || vm) {
1052  fprintf(stderr, "-- Other runtime information "
1053  "-----------------------------------------------\n\n");
1054  }
1055  if (vm && !rb_during_gc()) {
1056  int i;
1057  VALUE name;
1058  long len;
1059  const int max_name_length = 1024;
1060 # define LIMITED_NAME_LENGTH(s) \
1061  (((len = RSTRING_LEN(s)) > max_name_length) ? max_name_length : (int)len)
1062 
1063  name = vm->progname;
1064  if (name) {
1065  fprintf(stderr, "* Loaded script: %.*s\n",
1066  LIMITED_NAME_LENGTH(name), RSTRING_PTR(name));
1067  fprintf(stderr, "\n");
1068  }
1069  if (vm->loaded_features) {
1070  fprintf(stderr, "* Loaded features:\n\n");
1071  for (i=0; i<RARRAY_LEN(vm->loaded_features); i++) {
1072  name = RARRAY_AREF(vm->loaded_features, i);
1073  if (RB_TYPE_P(name, T_STRING)) {
1074  fprintf(stderr, " %4d %.*s\n", i,
1075  LIMITED_NAME_LENGTH(name), RSTRING_PTR(name));
1076  }
1077  else if (RB_TYPE_P(name, T_CLASS) || RB_TYPE_P(name, T_MODULE)) {
1078  const char *const type = RB_TYPE_P(name, T_CLASS) ?
1079  "class" : "module";
1080  name = rb_search_class_path(rb_class_real(name));
1081  if (!RB_TYPE_P(name, T_STRING)) {
1082  fprintf(stderr, " %4d %s:<unnamed>\n", i, type);
1083  continue;
1084  }
1085  fprintf(stderr, " %4d %s:%.*s\n", i, type,
1086  LIMITED_NAME_LENGTH(name), RSTRING_PTR(name));
1087  }
1088  else {
1089  VALUE klass = rb_search_class_path(rb_obj_class(name));
1090  if (!RB_TYPE_P(klass, T_STRING)) {
1091  fprintf(stderr, " %4d #<%p:%p>\n", i,
1092  (void *)CLASS_OF(name), (void *)name);
1093  continue;
1094  }
1095  fprintf(stderr, " %4d #<%.*s:%p>\n", i,
1096  LIMITED_NAME_LENGTH(klass), RSTRING_PTR(klass),
1097  (void *)name);
1098  }
1099  }
1100  }
1101  fprintf(stderr, "\n");
1102  }
1103 
1104  {
1105 #ifdef PROC_MAPS_NAME
1106  {
1107  FILE *fp = fopen(PROC_MAPS_NAME, "r");
1108  if (fp) {
1109  fprintf(stderr, "* Process memory map:\n\n");
1110 
1111  while (!feof(fp)) {
1112  char buff[0x100];
1113  size_t rn = fread(buff, 1, 0x100, fp);
1114  if (fwrite(buff, 1, rn, stderr) != rn)
1115  break;
1116  }
1117 
1118  fclose(fp);
1119  fprintf(stderr, "\n\n");
1120  }
1121  }
1122 #endif /* __linux__ */
1123 #ifdef HAVE_LIBPROCSTAT
1124 # define MIB_KERN_PROC_PID_LEN 4
1125  int mib[MIB_KERN_PROC_PID_LEN];
1126  struct kinfo_proc kp;
1127  size_t len = sizeof(struct kinfo_proc);
1128  mib[0] = CTL_KERN;
1129  mib[1] = KERN_PROC;
1130  mib[2] = KERN_PROC_PID;
1131  mib[3] = getpid();
1132  if (sysctl(mib, MIB_KERN_PROC_PID_LEN, &kp, &len, NULL, 0) == -1) {
1133  perror("sysctl");
1134  }
1135  else {
1136  struct procstat *prstat = procstat_open_sysctl();
1137  fprintf(stderr, "* Process memory map:\n\n");
1138  procstat_vm(prstat, &kp);
1139  procstat_close(prstat);
1140  fprintf(stderr, "\n");
1141  }
1142 #endif /* __FreeBSD__ */
1143 #ifdef __APPLE__
1144  vm_address_t addr = 0;
1145  vm_size_t size = 0;
1146  struct vm_region_submap_info map;
1147  mach_msg_type_number_t count = VM_REGION_SUBMAP_INFO_COUNT;
1148  natural_t depth = 0;
1149 
1150  fprintf(stderr, "* Process memory map:\n\n");
1151  while (1) {
1152  if (vm_region_recurse(mach_task_self(), &addr, &size, &depth,
1153  (vm_region_recurse_info_t)&map, &count) != KERN_SUCCESS) {
1154  break;
1155  }
1156 
1157  if (map.is_submap) {
1158  // We only look at main addresses
1159  depth++;
1160  }
1161  else {
1162  fprintf(stderr, "%lx-%lx %s%s%s", addr, (addr+size),
1163  ((map.protection & VM_PROT_READ) != 0 ? "r" : "-"),
1164  ((map.protection & VM_PROT_WRITE) != 0 ? "w" : "-"),
1165  ((map.protection & VM_PROT_EXECUTE) != 0 ? "x" : "-"));
1166 #ifdef HAVE_LIBPROC_H
1167  char buff[PATH_MAX];
1168  if (proc_regionfilename(getpid(), addr, buff, sizeof(buff)) > 0) {
1169  fprintf(stderr, " %s", buff);
1170  }
1171 #endif
1172  fprintf(stderr, "\n");
1173  }
1174 
1175  addr += size;
1176  size = 0;
1177  }
1178 #endif
1179  }
1180 }
1181 
1182 #ifdef NON_SCALAR_THREAD_ID
1183 const char *ruby_fill_thread_id_string(rb_nativethread_id_t thid, rb_thread_id_string_t buf);
1184 #endif
1185 
1186 void
1187 rb_vmdebug_stack_dump_all_threads(void)
1188 {
1189  rb_thread_t *th = NULL;
1190  rb_ractor_t *r = GET_RACTOR();
1191 
1192  // TODO: now it only shows current ractor
1193  list_for_each(&r->threads.set, th, lt_node) {
1194 #ifdef NON_SCALAR_THREAD_ID
1195  rb_thread_id_string_t buf;
1196  ruby_fill_thread_id_string(th->thread_id, buf);
1197  fprintf(stderr, "th: %p, native_id: %s\n", th, buf);
1198 #else
1199  fprintf(stderr, "th: %p, native_id: %p\n", (void *)th, (void *)(uintptr_t)th->thread_id);
1200 #endif
1201  rb_vmdebug_stack_dump_raw(th->ec, th->ec->cfp);
1202  }
1203 }
#define rb_str_new2
Old name of rb_str_new_cstr.
Definition: string.h:1738
#define TYPE(_)
Old name of rb_type.
Definition: value_type.h:107
#define T_STRING
Old name of RUBY_T_STRING.
Definition: value_type.h:78
#define T_IMEMO
Old name of RUBY_T_IMEMO.
Definition: value_type.h:67
#define CLASS_OF
Old name of rb_class_of.
Definition: globals.h:203
#define T_MODULE
Old name of RUBY_T_MODULE.
Definition: value_type.h:70
#define T_UNDEF
Old name of RUBY_T_UNDEF.
Definition: value_type.h:82
#define Qnil
Old name of RUBY_Qnil.
#define T_CLASS
Old name of RUBY_T_CLASS.
Definition: value_type.h:58
#define SYMBOL_P
Old name of RB_SYMBOL_P.
Definition: value_type.h:88
void rb_bug(const char *fmt,...)
Interpreter panic switch.
Definition: error.c:802
VALUE rb_obj_class(VALUE obj)
Queries the class of an object.
Definition: object.c:188
VALUE rb_inspect(VALUE obj)
Generates a human-readable textual representation of the given object.
Definition: object.c:564
VALUE rb_class_real(VALUE klass)
Finds a "real" class.
Definition: object.c:178
int rb_during_gc(void)
Queries if the GC is busy.
Definition: gc.c:10301
const char * rb_id2name(ID id)
Retrieves the name mapped to the given id.
Definition: symbol.c:941
VALUE rb_sym2str(VALUE id)
Identical to rb_id2str(), except it takes an instance of rb_cSymbol rather than an ID.
Definition: symbol.c:924
VALUE type(ANYARGS)
ANYARGS-ed function type.
Definition: cxxanyargs.hpp:56
#define PRI_PIDT_PREFIX
A rb_sprintf() format prefix to be used for a pid_t parameter.
Definition: pid_t.h:38
#define RARRAY_LEN
Just another name of rb_array_len.
Definition: rarray.h:68
#define RARRAY_AREF(a, i)
Definition: rarray.h:588
static char * RSTRING_PTR(VALUE str)
Queries the contents pointer of the string.
Definition: rstring.h:497
#define StringValueCStr(v)
Identical to StringValuePtr, except it additionally checks for the contents for viability as a C stri...
Definition: rstring.h:95
Definition: method.h:62
struct rb_iseq_constant_body::@152 param
parameter information
uintptr_t VALUE
Type that represents a Ruby object.
Definition: value.h:40
static bool RB_TYPE_P(VALUE obj, enum ruby_value_type t)
Queries if the given object is of given type.
Definition: value_type.h:375