1 /*
   2  * Copyright (c) 2003, 2019, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  *
  23  */
  24 
  25 #include <fcntl.h>
  26 #include "precompiled.hpp"
  27 #include "compiler/compileBroker.hpp"
  28 #include "gc_interface/collectedHeap.hpp"

  29 #include "prims/whitebox.hpp"
  30 #include "runtime/arguments.hpp"
  31 #include "runtime/frame.inline.hpp"
  32 #include "runtime/init.hpp"
  33 #include "runtime/os.hpp"
  34 #include "runtime/thread.inline.hpp"
  35 #include "runtime/vmThread.hpp"
  36 #include "runtime/vm_operations.hpp"
  37 #include "services/memTracker.hpp"
  38 #include "utilities/debug.hpp"
  39 #include "utilities/decoder.hpp"
  40 #include "utilities/defaultStream.hpp"
  41 #include "utilities/errorReporter.hpp"
  42 #include "utilities/events.hpp"
  43 #include "utilities/top.hpp"
  44 #include "utilities/vmError.hpp"




  45 
  46 PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
  47 
  48 // List of environment variables that should be reported in error log file.
  49 const char *env_list[] = {
  50   // All platforms
  51   "JAVA_HOME", "JRE_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH",
  52   "JAVA_COMPILER", "PATH", "USERNAME",
  53 
  54   // Env variables that are defined on Solaris/Linux/BSD
  55   "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY",
  56   "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE",
  57 
  58   // defined on Linux
  59   "LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM",
  60 
  61   // defined on Darwin
  62   "DYLD_LIBRARY_PATH", "DYLD_FALLBACK_LIBRARY_PATH",
  63   "DYLD_FRAMEWORK_PATH", "DYLD_FALLBACK_FRAMEWORK_PATH",
  64   "DYLD_INSERT_LIBRARIES",
  65 
  66   // defined on Windows
  67   "OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR",
  68 
  69   (const char *)0
  70 };
  71 
  72 // Fatal error handler for internal errors and crashes.
  73 //
  74 // The default behavior of fatal error handler is to print a brief message
  75 // to standard out (defaultStream::output_fd()), then save detailed information
  76 // into an error report file (hs_err_pid<pid>.log) and abort VM. If multiple
  77 // threads are having troubles at the same time, only one error is reported.
  78 // The thread that is reporting error will abort VM when it is done, all other
  79 // threads are blocked forever inside report_and_die().
  80 
  81 // Constructor for crashes
  82 VMError::VMError(Thread* thread, unsigned int sig, address pc, void* siginfo, void* context) {
  83     _thread = thread;
  84     _id = sig;
  85     _pc   = pc;
  86     _siginfo = siginfo;
  87     _context = context;
  88 
  89     _verbose = false;
  90     _current_step = 0;
  91     _current_step_info = NULL;
  92 
  93     _message = NULL;
  94     _detail_msg = NULL;
  95     _filename = NULL;
  96     _lineno = 0;
  97 
  98     _size = 0;
  99 }
 100 
 101 // Constructor for internal errors
 102 VMError::VMError(Thread* thread, const char* filename, int lineno,
 103                  const char* message, const char * detail_msg)
 104 {
 105   _thread = thread;
 106   _id = INTERNAL_ERROR;     // Value that's not an OS exception/signal
 107   _filename = filename;
 108   _lineno = lineno;
 109   _message = message;
 110   _detail_msg = detail_msg;
 111 
 112   _verbose = false;
 113   _current_step = 0;
 114   _current_step_info = NULL;
 115 
 116   _pc = NULL;
 117   _siginfo = NULL;
 118   _context = NULL;
 119 
 120   _size = 0;
 121 }
 122 
 123 // Constructor for OOM errors
 124 VMError::VMError(Thread* thread, const char* filename, int lineno, size_t size,
 125                  VMErrorType vm_err_type, const char* message) {
 126     _thread = thread;
 127     _id = vm_err_type; // Value that's not an OS exception/signal
 128     _filename = filename;
 129     _lineno = lineno;
 130     _message = message;
 131     _detail_msg = NULL;
 132 
 133     _verbose = false;
 134     _current_step = 0;
 135     _current_step_info = NULL;
 136 
 137     _pc = NULL;
 138     _siginfo = NULL;
 139     _context = NULL;
 140 
 141     _size = size;
 142 }
 143 
 144 
 145 // Constructor for non-fatal errors
 146 VMError::VMError(const char* message) {
 147     _thread = NULL;
 148     _id = INTERNAL_ERROR;     // Value that's not an OS exception/signal
 149     _filename = NULL;
 150     _lineno = 0;
 151     _message = message;
 152     _detail_msg = NULL;
 153 
 154     _verbose = false;
 155     _current_step = 0;
 156     _current_step_info = NULL;
 157 
 158     _pc = NULL;
 159     _siginfo = NULL;
 160     _context = NULL;
 161 
 162     _size = 0;
 163 }
 164 
 165 // -XX:OnError=<string>, where <string> can be a list of commands, separated
 166 // by ';'. "%p" is replaced by current process id (pid); "%%" is replaced by
 167 // a single "%". Some examples:
 168 //
 169 // -XX:OnError="pmap %p"                // show memory map
 170 // -XX:OnError="gcore %p; dbx - %p"     // dump core and launch debugger
 171 // -XX:OnError="cat hs_err_pid%p.log | mail my_email@sun.com"
 172 // -XX:OnError="kill -9 %p"             // ?#!@#
 173 
 174 // A simple parser for -XX:OnError, usage:
 175 //  ptr = OnError;
 176 //  while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr) != NULL)
 177 //     ... ...
 178 static char* next_OnError_command(char* buf, int buflen, const char** ptr) {
 179   if (ptr == NULL || *ptr == NULL) return NULL;
 180 
 181   const char* cmd = *ptr;
 182 
 183   // skip leading blanks or ';'
 184   while (*cmd == ' ' || *cmd == ';') cmd++;
 185 
 186   if (*cmd == '\0') return NULL;
 187 
 188   const char * cmdend = cmd;
 189   while (*cmdend != '\0' && *cmdend != ';') cmdend++;
 190 
 191   Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen);
 192 
 193   *ptr = (*cmdend == '\0' ? cmdend : cmdend + 1);
 194   return buf;
 195 }
 196 
 197 
 198 static void print_bug_submit_message(outputStream *out, Thread *thread) {
 199   if (out == NULL) return;
 200   out->print_raw_cr("# If you would like to submit a bug report, please visit:");
 201   out->print_raw   ("#   ");
 202   out->print_raw_cr(Arguments::java_vendor_url_bug());
 203   // If the crash is in native code, encourage user to submit a bug to the
 204   // provider of that code.
 205   if (thread && thread->is_Java_thread() &&
 206       !thread->is_hidden_from_external_view()) {
 207     JavaThread* jt = (JavaThread*)thread;
 208     if (jt->thread_state() == _thread_in_native) {
 209       out->print_cr("# The crash happened outside the Java Virtual Machine in native code.\n# See problematic frame for where to report the bug.");
 210     }
 211   }
 212   out->print_raw_cr("#");
 213 }
 214 
 215 bool VMError::coredump_status;
 216 char VMError::coredump_message[O_BUFLEN];
 217 
 218 void VMError::report_coredump_status(const char* message, bool status) {
 219   coredump_status = status;
 220   strncpy(coredump_message, message, sizeof(coredump_message));
 221   coredump_message[sizeof(coredump_message)-1] = 0;
 222 }
 223 
 224 
 225 // Return a string to describe the error
 226 char* VMError::error_string(char* buf, int buflen) {
 227   char signame_buf[64];
 228   const char *signame = os::exception_name(_id, signame_buf, sizeof(signame_buf));
 229 
 230   if (signame) {
 231     jio_snprintf(buf, buflen,
 232                  "%s (0x%x) at pc=" PTR_FORMAT ", pid=%d, tid=" INTPTR_FORMAT,
 233                  signame, _id, _pc,
 234                  os::current_process_id(), os::current_thread_id());
 235   } else if (_filename != NULL && _lineno > 0) {
 236     // skip directory names
 237     char separator = os::file_separator()[0];
 238     const char *p = strrchr(_filename, separator);
 239     int n = jio_snprintf(buf, buflen,
 240                          "Internal Error at %s:%d, pid=%d, tid=" INTPTR_FORMAT,
 241                          p ? p + 1 : _filename, _lineno,
 242                          os::current_process_id(), os::current_thread_id());
 243     if (n >= 0 && n < buflen && _message) {
 244       if (_detail_msg) {
 245         jio_snprintf(buf + n, buflen - n, "%s%s: %s",
 246                      os::line_separator(), _message, _detail_msg);
 247       } else {
 248         jio_snprintf(buf + n, buflen - n, "%sError: %s",
 249                      os::line_separator(), _message);
 250       }
 251     }
 252   } else {
 253     jio_snprintf(buf, buflen,
 254                  "Internal Error (0x%x), pid=%d, tid=" INTPTR_FORMAT,
 255                  _id, os::current_process_id(), os::current_thread_id());
 256   }
 257 
 258   return buf;
 259 }
 260 
 261 void VMError::print_stack_trace(outputStream* st, JavaThread* jt,
 262                                 char* buf, int buflen, bool verbose) {
 263 #ifdef ZERO
 264   if (jt->zero_stack()->sp() && jt->top_zero_frame()) {
 265     // StackFrameStream uses the frame anchor, which may not have
 266     // been set up.  This can be done at any time in Zero, however,
 267     // so if it hasn't been set up then we just set it up now and
 268     // clear it again when we're done.
 269     bool has_last_Java_frame = jt->has_last_Java_frame();
 270     if (!has_last_Java_frame)
 271       jt->set_last_Java_frame();
 272     st->print("Java frames:");
 273 
 274     // If the top frame is a Shark frame and the frame anchor isn't
 275     // set up then it's possible that the information in the frame
 276     // is garbage: it could be from a previous decache, or it could
 277     // simply have never been written.  So we print a warning...
 278     StackFrameStream sfs(jt);
 279     if (!has_last_Java_frame && !sfs.is_done()) {
 280       if (sfs.current()->zeroframe()->is_shark_frame()) {
 281         st->print(" (TOP FRAME MAY BE JUNK)");
 282       }
 283     }
 284     st->cr();
 285 
 286     // Print the frames
 287     for(int i = 0; !sfs.is_done(); sfs.next(), i++) {
 288       sfs.current()->zero_print_on_error(i, st, buf, buflen);
 289       st->cr();
 290     }
 291 
 292     // Reset the frame anchor if necessary
 293     if (!has_last_Java_frame)
 294       jt->reset_last_Java_frame();
 295   }
 296 #else
 297   if (jt->has_last_Java_frame()) {
 298     st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)");
 299     for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) {
 300       sfs.current()->print_on_error(st, buf, buflen, verbose);
 301       st->cr();
 302     }
 303   }
 304 #endif // ZERO
 305 }
 306 
 307 static void print_oom_reasons(outputStream* st) {
 308   st->print_cr("# Possible reasons:");
 309   st->print_cr("#   The system is out of physical RAM or swap space");
 310   if (UseCompressedOops) {
 311     st->print_cr("#   The process is running with CompressedOops enabled, and the Java Heap may be blocking the growth of the native heap");
 312   }
 313   if (LogBytesPerWord == 2) {
 314     st->print_cr("#   In 32 bit mode, the process size limit was hit");
 315   }
 316   st->print_cr("# Possible solutions:");
 317   st->print_cr("#   Reduce memory load on the system");
 318   st->print_cr("#   Increase physical memory or swap space");
 319   st->print_cr("#   Check if swap backing store is full");
 320   if (LogBytesPerWord == 2) {
 321     st->print_cr("#   Use 64 bit Java on a 64 bit OS");
 322   }
 323   st->print_cr("#   Decrease Java heap size (-Xmx/-Xms)");
 324   st->print_cr("#   Decrease number of Java threads");
 325   st->print_cr("#   Decrease Java thread stack sizes (-Xss)");
 326   st->print_cr("#   Set larger code cache with -XX:ReservedCodeCacheSize=");
 327   if (UseCompressedOops) {
 328     switch (Universe::narrow_oop_mode()) {
 329       case Universe::UnscaledNarrowOop:
 330         st->print_cr("#   JVM is running with Unscaled Compressed Oops mode in which the Java heap is");
 331         st->print_cr("#     placed in the first 4GB address space. The Java Heap base address is the");
 332         st->print_cr("#     maximum limit for the native heap growth. Please use -XX:HeapBaseMinAddress");
 333         st->print_cr("#     to set the Java Heap base and to place the Java Heap above 4GB virtual address.");
 334         break;
 335       case Universe::ZeroBasedNarrowOop:
 336         st->print_cr("#   JVM is running with Zero Based Compressed Oops mode in which the Java heap is");
 337         st->print_cr("#     placed in the first 32GB address space. The Java Heap base address is the");
 338         st->print_cr("#     maximum limit for the native heap growth. Please use -XX:HeapBaseMinAddress");
 339         st->print_cr("#     to set the Java Heap base and to place the Java Heap above 32GB virtual address.");
 340         break;
 341       default:
 342         break;
 343     }
 344   }
 345   st->print_cr("# This output file may be truncated or incomplete.");
 346 }
 347 
 348 // This is the main function to report a fatal error. Only one thread can
 349 // call this function, so we don't need to worry about MT-safety. But it's
 350 // possible that the error handler itself may crash or die on an internal
 351 // error, for example, when the stack/heap is badly damaged. We must be
 352 // able to handle recursive errors that happen inside error handler.
 353 //
 354 // Error reporting is done in several steps. If a crash or internal error
 355 // occurred when reporting an error, the nested signal/exception handler
 356 // can skip steps that are already (or partially) done. Error reporting will
 357 // continue from the next step. This allows us to retrieve and print
 358 // information that may be unsafe to get after a fatal error. If it happens,
 359 // you may find nested report_and_die() frames when you look at the stack
 360 // in a debugger.
 361 //
 362 // In general, a hang in error handler is much worse than a crash or internal
 363 // error, as it's harder to recover from a hang. Deadlock can happen if we
 364 // try to grab a lock that is already owned by current thread, or if the
 365 // owner is blocked forever (e.g. in os::infinite_sleep()). If possible, the
 366 // error handler and all the functions it called should avoid grabbing any
 367 // lock. An important thing to notice is that memory allocation needs a lock.
 368 //
 369 // We should avoid using large stack allocated buffers. Many errors happen
 370 // when stack space is already low. Making things even worse is that there
 371 // could be nested report_and_die() calls on stack (see above). Only one
 372 // thread can report error, so large buffers are statically allocated in data
 373 // segment.
 374 
 375 void VMError::report(outputStream* st) {
 376 # define BEGIN if (_current_step == 0) { _current_step = 1;
 377 # define STEP(n, s) } if (_current_step < n) { _current_step = n; _current_step_info = s;
 378 # define END }
 379 
 380   // don't allocate large buffer on stack
 381   static char buf[O_BUFLEN];
 382 
 383   BEGIN
 384 
 385   STEP(10, "(printing fatal error message)")
 386 
 387     st->print_cr("#");
 388     if (should_report_bug(_id)) {
 389       st->print_cr("# A fatal error has been detected by the Java Runtime Environment:");
 390     } else {
 391       st->print_cr("# There is insufficient memory for the Java "
 392                    "Runtime Environment to continue.");
 393     }
 394 
 395   STEP(15, "(printing type of error)")
 396 
 397      switch(_id) {
 398        case OOM_MALLOC_ERROR:
 399        case OOM_MMAP_ERROR:
 400          if (_size) {
 401            st->print("# Native memory allocation ");
 402            st->print((_id == (int)OOM_MALLOC_ERROR) ? "(malloc) failed to allocate " :
 403                                                  "(mmap) failed to map ");
 404            jio_snprintf(buf, sizeof(buf), SIZE_FORMAT, _size);
 405            st->print("%s", buf);
 406            st->print(" bytes");
 407            if (_message != NULL) {
 408              st->print(" for ");
 409              st->print("%s", _message);
 410            }
 411            st->cr();
 412          } else {
 413            if (_message != NULL)
 414              st->print("# ");
 415              st->print_cr("%s", _message);
 416          }
 417          // In error file give some solutions
 418          if (_verbose) {
 419            print_oom_reasons(st);
 420          } else {
 421            return;  // that's enough for the screen
 422          }
 423          break;
 424        case INTERNAL_ERROR:
 425        default:
 426          break;
 427      }
 428 
 429   STEP(20, "(printing exception/signal name)")
 430 
 431      st->print_cr("#");
 432      st->print("#  ");
 433      // Is it an OS exception/signal?
 434      if (os::exception_name(_id, buf, sizeof(buf))) {
 435        st->print("%s", buf);
 436        st->print(" (0x%x)", _id);                // signal number
 437        st->print(" at pc=" PTR_FORMAT, _pc);
 438      } else {
 439        if (should_report_bug(_id)) {
 440          st->print("Internal Error");
 441        } else {
 442          st->print("Out of Memory Error");
 443        }
 444        if (_filename != NULL && _lineno > 0) {
 445 #ifdef PRODUCT
 446          // In product mode chop off pathname?
 447          char separator = os::file_separator()[0];
 448          const char *p = strrchr(_filename, separator);
 449          const char *file = p ? p+1 : _filename;
 450 #else
 451          const char *file = _filename;
 452 #endif
 453          size_t len = strlen(file);
 454          size_t buflen = sizeof(buf);
 455 
 456          strncpy(buf, file, buflen);
 457          if (len + 10 < buflen) {
 458            sprintf(buf + len, ":%d", _lineno);
 459          }
 460          st->print(" (%s)", buf);
 461        } else {
 462          st->print(" (0x%x)", _id);
 463        }
 464      }
 465 
 466   STEP(30, "(printing current thread and pid)")
 467 
 468      // process id, thread id
 469      st->print(", pid=%d", os::current_process_id());
 470      st->print(", tid=" INTPTR_FORMAT, os::current_thread_id());
 471      st->cr();
 472 
 473   STEP(40, "(printing error message)")
 474 
 475      if (should_report_bug(_id)) {  // already printed the message.
 476        // error message
 477        if (_detail_msg) {
 478          st->print_cr("#  %s: %s", _message ? _message : "Error", _detail_msg);
 479        } else if (_message) {
 480          st->print_cr("#  Error: %s", _message);
 481        }
 482     }
 483 
 484   STEP(50, "(printing Java version string)")
 485 
 486      // VM version
 487      st->print_cr("#");
 488      JDK_Version::current().to_string(buf, sizeof(buf));
 489      const char* runtime_name = JDK_Version::runtime_name() != NULL ?
 490                                   JDK_Version::runtime_name() : "";
 491      const char* runtime_version = JDK_Version::runtime_version() != NULL ?
 492                                   JDK_Version::runtime_version() : "";
 493      st->print_cr("# JRE version: %s (%s) (build %s)", runtime_name, buf, runtime_version);
 494      st->print_cr("# Java VM: %s (%s %s %s %s)",
 495                    Abstract_VM_Version::vm_name(),
 496                    Abstract_VM_Version::vm_release(),
 497                    Abstract_VM_Version::vm_info_string(),
 498                    Abstract_VM_Version::vm_platform_string(),
 499                    UseCompressedOops ? "compressed oops" : ""
 500                  );
 501 
 502   STEP(60, "(printing problematic frame)")
 503 
 504      // Print current frame if we have a context (i.e. it's a crash)
 505      if (_context) {
 506        st->print_cr("# Problematic frame:");
 507        st->print("# ");
 508        frame fr = os::fetch_frame_from_context(_context);
 509        fr.print_on_error(st, buf, sizeof(buf));
 510        st->cr();
 511        st->print_cr("#");
 512      }
 513   STEP(63, "(printing core file information)")
 514     st->print("# ");
 515     if (coredump_status) {
 516       st->print("Core dump written. Default location: %s", coredump_message);
 517     } else {
 518       st->print("Failed to write core dump. %s", coredump_message);
 519     }
 520     st->cr();
 521     st->print_cr("#");
 522 
 523   STEP(65, "(printing bug submit message)")
 524 
 525      if (should_report_bug(_id) && _verbose) {
 526        print_bug_submit_message(st, _thread);
 527      }
 528 
 529   STEP(70, "(printing thread)" )
 530 
 531      if (_verbose) {
 532        st->cr();
 533        st->print_cr("---------------  T H R E A D  ---------------");
 534        st->cr();
 535      }
 536 
 537   STEP(80, "(printing current thread)" )
 538 
 539      // current thread
 540      if (_verbose) {
 541        if (_thread) {
 542          st->print("Current thread (" PTR_FORMAT "):  ", _thread);
 543          _thread->print_on_error(st, buf, sizeof(buf));
 544          st->cr();
 545        } else {
 546          st->print_cr("Current thread is native thread");
 547        }
 548        st->cr();
 549      }
 550 
 551   STEP(90, "(printing siginfo)" )
 552 
 553      // signal no, signal code, address that caused the fault
 554      if (_verbose && _siginfo) {
 555        os::print_siginfo(st, _siginfo);
 556        st->cr();
 557      }
 558 
 559   STEP(100, "(printing registers, top of stack, instructions near pc)")
 560 
 561      // registers, top of stack, instructions near pc
 562      if (_verbose && _context) {
 563        os::print_context(st, _context);
 564        st->cr();
 565      }
 566 
 567   STEP(105, "(printing register info)")
 568 
 569      // decode register contents if possible
 570      if (_verbose && _context && Universe::is_fully_initialized()) {
 571        os::print_register_info(st, _context);
 572        st->cr();
 573      }
 574 
 575   STEP(110, "(printing stack bounds)" )
 576 
 577      if (_verbose) {
 578        st->print("Stack: ");
 579 
 580        address stack_top;
 581        size_t stack_size;
 582 
 583        if (_thread) {
 584           stack_top = _thread->stack_base();
 585           stack_size = _thread->stack_size();
 586        } else {
 587           stack_top = os::current_stack_base();
 588           stack_size = os::current_stack_size();
 589        }
 590 
 591        address stack_bottom = stack_top - stack_size;
 592        st->print("[" PTR_FORMAT "," PTR_FORMAT "]", stack_bottom, stack_top);
 593 
 594        frame fr = _context ? os::fetch_frame_from_context(_context)
 595                            : os::current_frame();
 596 
 597        if (fr.sp()) {
 598          st->print(",  sp=" PTR_FORMAT, fr.sp());
 599          size_t free_stack_size = pointer_delta(fr.sp(), stack_bottom, 1024);
 600          st->print(",  free space=" SIZE_FORMAT "k", free_stack_size);
 601        }
 602 
 603        st->cr();
 604      }
 605 
 606   STEP(120, "(printing native stack)" )
 607 
 608    if (_verbose) {
 609      if (os::platform_print_native_stack(st, _context, buf, sizeof(buf))) {
 610        // We have printed the native stack in platform-specific code
 611        // Windows/x64 needs special handling.
 612      } else {
 613        frame fr = _context ? os::fetch_frame_from_context(_context)
 614                            : os::current_frame();
 615 
 616        print_native_stack(st, fr, _thread, buf, sizeof(buf));
 617      }
 618    }
 619 
 620   STEP(130, "(printing Java stack)" )
 621 
 622      if (_verbose && _thread && _thread->is_Java_thread()) {
 623        print_stack_trace(st, (JavaThread*)_thread, buf, sizeof(buf));
 624      }
 625 
 626   STEP(135, "(printing target Java thread stack)" )
 627 
 628      // printing Java thread stack trace if it is involved in GC crash
 629      if (_verbose && _thread && (_thread->is_Named_thread())) {
 630        JavaThread*  jt = ((NamedThread *)_thread)->processed_thread();
 631        if (jt != NULL) {
 632          st->print_cr("JavaThread " PTR_FORMAT " (nid = " UINTX_FORMAT ") was being processed", jt, jt->osthread()->thread_id());
 633          print_stack_trace(st, jt, buf, sizeof(buf), true);
 634        }
 635      }
 636 
 637   STEP(140, "(printing VM operation)" )
 638 
 639      if (_verbose && _thread && _thread->is_VM_thread()) {
 640         VMThread* t = (VMThread*)_thread;
 641         VM_Operation* op = t->vm_operation();
 642         if (op) {
 643           op->print_on_error(st);
 644           st->cr();
 645           st->cr();
 646         }
 647      }
 648 
 649   STEP(150, "(printing current compile task)" )
 650 
 651      if (_verbose && _thread && _thread->is_Compiler_thread()) {
 652         CompilerThread* t = (CompilerThread*)_thread;
 653         if (t->task()) {
 654            st->cr();
 655            st->print_cr("Current CompileTask:");
 656            t->task()->print_line_on_error(st, buf, sizeof(buf));
 657            st->cr();
 658         }
 659      }
 660 
 661   STEP(160, "(printing process)" )
 662 
 663      if (_verbose) {
 664        st->cr();
 665        st->print_cr("---------------  P R O C E S S  ---------------");
 666        st->cr();
 667      }
 668 
 669   STEP(170, "(printing all threads)" )
 670 
 671      // all threads
 672      if (_verbose && _thread) {
 673        Threads::print_on_error(st, _thread, buf, sizeof(buf));
 674        st->cr();
 675      }
 676 
 677   STEP(175, "(printing VM state)" )
 678 
 679      if (_verbose) {
 680        // Safepoint state
 681        st->print("VM state:");
 682 
 683        if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing");
 684        else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint");
 685        else st->print("not at safepoint");
 686 
 687        // Also see if error occurred during initialization or shutdown
 688        if (!Universe::is_fully_initialized()) {
 689          st->print(" (not fully initialized)");
 690        } else if (VM_Exit::vm_exited()) {
 691          st->print(" (shutting down)");
 692        } else {
 693          st->print(" (normal execution)");
 694        }
 695        st->cr();
 696        st->cr();
 697      }
 698 
 699   STEP(180, "(printing owned locks on error)" )
 700 
 701      // mutexes/monitors that currently have an owner
 702      if (_verbose) {
 703        print_owned_locks_on_error(st);
 704        st->cr();
 705      }
 706 
 707   STEP(182, "(printing number of OutOfMemoryError and StackOverflow exceptions)")
 708 
 709      if (_verbose && Exceptions::has_exception_counts()) {
 710        st->print_cr("OutOfMemory and StackOverflow Exception counts:");
 711        Exceptions::print_exception_counts_on_error(st);
 712        st->cr();
 713      }
 714 
 715   STEP(185, "(printing compressed oops mode")
 716 
 717      if (_verbose && UseCompressedOops) {
 718        Universe::print_compressed_oops_mode(st);
 719        if (UseCompressedClassPointers) {
 720          Metaspace::print_compressed_class_space(st);
 721        }
 722        st->cr();
 723      }
 724 
 725   STEP(190, "(printing heap information)" )
 726 
 727      if (_verbose && Universe::is_fully_initialized()) {
 728        Universe::heap()->print_on_error(st);
 729        st->cr();
 730 
 731        st->print_cr("Polling page: " INTPTR_FORMAT, os::get_polling_page());
 732        st->cr();
 733      }
 734 
 735   STEP(195, "(printing code cache information)" )
 736 
 737      if (_verbose && Universe::is_fully_initialized()) {
 738        // print code cache information before vm abort
 739        CodeCache::print_summary(st);
 740        st->cr();
 741      }
 742 
 743   STEP(200, "(printing ring buffers)" )
 744 
 745      if (_verbose) {
 746        Events::print_all(st);
 747        st->cr();
 748      }
 749 
 750   STEP(205, "(printing dynamic libraries)" )
 751 
 752      if (_verbose) {
 753        // dynamic libraries, or memory map
 754        os::print_dll_info(st);
 755        st->cr();
 756      }
 757 
 758   STEP(210, "(printing VM options)" )
 759 
 760      if (_verbose) {
 761        // VM options
 762        Arguments::print_on(st);
 763        st->cr();
 764      }
 765 
 766   STEP(215, "(printing warning if internal testing API used)" )
 767 
 768      if (WhiteBox::used()) {
 769        st->print_cr("Unsupported internal testing APIs have been used.");
 770        st->cr();
 771      }
 772 
 773   STEP(220, "(printing environment variables)" )
 774 
 775      if (_verbose) {
 776        os::print_environment_variables(st, env_list, buf, sizeof(buf));
 777        st->cr();
 778      }
 779 
 780   STEP(225, "(printing signal handlers)" )
 781 
 782      if (_verbose) {
 783        os::print_signal_handlers(st, buf, sizeof(buf));
 784        st->cr();
 785      }
 786 
 787   STEP(228, "(Native Memory Tracking)" )
 788      if (_verbose) {
 789        MemTracker::error_report(st);
 790      }
 791 
 792   STEP(230, "" )
 793 
 794      if (_verbose) {
 795        st->cr();
 796        st->print_cr("---------------  S Y S T E M  ---------------");
 797        st->cr();
 798      }
 799 
 800   STEP(240, "(printing OS information)" )
 801 
 802      if (_verbose) {
 803        os::print_os_info(st);
 804        st->cr();
 805      }
 806 
 807   STEP(250, "(printing CPU info)" )
 808      if (_verbose) {
 809        os::print_cpu_info(st);
 810        st->cr();
 811      }
 812 
 813   STEP(260, "(printing memory info)" )
 814 
 815      if (_verbose) {
 816        os::print_memory_info(st);
 817        st->cr();
 818      }
 819 
 820   STEP(270, "(printing internal vm info)" )
 821 
 822      if (_verbose) {
 823        st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string());
 824        st->cr();
 825      }
 826 
 827   STEP(280, "(printing date and time)" )
 828 
 829      if (_verbose) {
 830        os::print_date_and_time(st, buf, sizeof(buf));
 831        st->cr();
 832      }
 833 
 834   END
 835 
 836 # undef BEGIN
 837 # undef STEP
 838 # undef END
 839 }
 840 
 841 VMError* volatile VMError::first_error = NULL;
 842 volatile jlong VMError::first_error_tid = -1;
 843 
 844 // An error could happen before tty is initialized or after it has been
 845 // destroyed. Here we use a very simple unbuffered fdStream for printing.
 846 // Only out.print_raw() and out.print_raw_cr() should be used, as other
 847 // printing methods need to allocate large buffer on stack. To format a
 848 // string, use jio_snprintf() with a static buffer or use staticBufferStream.
 849 fdStream VMError::out(defaultStream::output_fd());
 850 fdStream VMError::log; // error log used by VMError::report_and_die()
 851 
 852 /** Expand a pattern into a buffer starting at pos and open a file using constructed path */
 853 static int expand_and_open(const char* pattern, char* buf, size_t buflen, size_t pos) {
 854   int fd = -1;
 855   if (Arguments::copy_expand_pid(pattern, strlen(pattern), &buf[pos], buflen - pos)) {
 856     // the O_EXCL flag will cause the open to fail if the file exists
 857     fd = open(buf, O_RDWR | O_CREAT | O_EXCL, 0666);
 858   }
 859   return fd;
 860 }
 861 
 862 /**
 863  * Construct file name for a log file and return it's file descriptor.
 864  * Name and location depends on pattern, default_pattern params and access
 865  * permissions.
 866  */
 867 static int prepare_log_file(const char* pattern, const char* default_pattern, char* buf, size_t buflen) {
 868   int fd = -1;
 869 
 870   // If possible, use specified pattern to construct log file name
 871   if (pattern != NULL) {
 872     fd = expand_and_open(pattern, buf, buflen, 0);
 873   }
 874 
 875   // Either user didn't specify, or the user's location failed,
 876   // so use the default name in the current directory
 877   if (fd == -1) {
 878     const char* cwd = os::get_current_directory(buf, buflen);
 879     if (cwd != NULL) {
 880       size_t pos = strlen(cwd);
 881       int fsep_len = jio_snprintf(&buf[pos], buflen-pos, "%s", os::file_separator());
 882       pos += fsep_len;
 883       if (fsep_len > 0) {
 884         fd = expand_and_open(default_pattern, buf, buflen, pos);
 885       }
 886     }
 887   }
 888 
 889    // try temp directory if it exists.
 890    if (fd == -1) {
 891      const char* tmpdir = os::get_temp_directory();
 892      if (tmpdir != NULL && strlen(tmpdir) > 0) {
 893        int pos = jio_snprintf(buf, buflen, "%s%s", tmpdir, os::file_separator());
 894        if (pos > 0) {
 895          fd = expand_and_open(default_pattern, buf, buflen, pos);
 896        }
 897      }
 898    }
 899 
 900   return fd;
 901 }
 902 
 903 void VMError::report_and_die() {
 904   // Don't allocate large buffer on stack
 905   static char buffer[O_BUFLEN];
 906 
 907   // How many errors occurred in error handler when reporting first_error.
 908   static int recursive_error_count;
 909 
 910   // We will first print a brief message to standard out (verbose = false),
 911   // then save detailed information in log file (verbose = true).
 912   static bool out_done = false;         // done printing to standard out
 913   static bool log_done = false;         // done saving error log
 914   static bool transmit_report_done = false; // done error reporting
 915 
 916   if (SuppressFatalErrorMessage) {
 917       os::abort();
 918   }
 919   jlong mytid = os::current_thread_id();
 920   if (first_error == NULL &&
 921       Atomic::cmpxchg_ptr(this, &first_error, NULL) == NULL) {
 922 
 923     // first time
 924     first_error_tid = mytid;
 925     set_error_reported();
 926 
 927     if (ShowMessageBoxOnError || PauseAtExit) {
 928       show_message_box(buffer, sizeof(buffer));
 929 
 930       // User has asked JVM to abort. Reset ShowMessageBoxOnError so the
 931       // WatcherThread can kill JVM if the error handler hangs.
 932       ShowMessageBoxOnError = false;
 933     }
 934 
 935     // Write a minidump on Windows, check core dump limits on Linux/Solaris
 936     os::check_or_create_dump(_siginfo, _context, buffer, sizeof(buffer));
 937 
 938     // reset signal handlers or exception filter; make sure recursive crashes
 939     // are handled properly.
 940     reset_signal_handlers();
 941 







 942   } else {
 943     // If UseOsErrorReporting we call this for each level of the call stack
 944     // while searching for the exception handler.  Only the first level needs
 945     // to be reported.
 946     if (UseOSErrorReporting && log_done) return;
 947 
 948     // This is not the first error, see if it happened in a different thread
 949     // or in the same thread during error reporting.
 950     if (first_error_tid != mytid) {
 951       char msgbuf[64];
 952       jio_snprintf(msgbuf, sizeof(msgbuf),
 953                    "[thread " INT64_FORMAT " also had an error]",
 954                    mytid);
 955       out.print_raw_cr(msgbuf);
 956 
 957       // error reporting is not MT-safe, block current thread
 958       os::infinite_sleep();
 959 
 960     } else {
 961       if (recursive_error_count++ > 30) {
 962         out.print_raw_cr("[Too many errors, abort]");
 963         os::die();
 964       }
 965 
 966       jio_snprintf(buffer, sizeof(buffer),
 967                    "[error occurred during error reporting %s, id 0x%x]",
 968                    first_error ? first_error->_current_step_info : "",
 969                    _id);
 970       if (log.is_open()) {
 971         log.cr();
 972         log.print_raw_cr(buffer);
 973         log.cr();
 974       } else {
 975         out.cr();
 976         out.print_raw_cr(buffer);
 977         out.cr();
 978       }
 979     }
 980   }
 981 
 982   // print to screen
 983   if (!out_done) {
 984     first_error->_verbose = false;
 985 
 986     staticBufferStream sbs(buffer, sizeof(buffer), &out);
 987     first_error->report(&sbs);
 988 
 989     out_done = true;
 990 
 991     first_error->_current_step = 0;         // reset current_step
 992     first_error->_current_step_info = "";   // reset current_step string
 993   }
 994 
 995   // print to error log file
 996   if (!log_done) {
 997     first_error->_verbose = true;
 998 
 999     // see if log file is already open
1000     if (!log.is_open()) {
1001       // open log file
1002       int fd = prepare_log_file(ErrorFile, "hs_err_pid%p.log", buffer, sizeof(buffer));
1003       if (fd != -1) {
1004         out.print_raw("# An error report file with more information is saved as:\n# ");
1005         out.print_raw_cr(buffer);
1006 
1007         log.set_fd(fd);
1008       } else {
1009         out.print_raw_cr("# Can not save log file, dump to screen..");
1010         log.set_fd(defaultStream::output_fd());
1011         /* Error reporting currently needs dumpfile.
1012          * Maybe implement direct streaming in the future.*/
1013         transmit_report_done = true;
1014       }
1015     }
1016 
1017     staticBufferStream sbs(buffer, O_BUFLEN, &log);
1018     first_error->report(&sbs);
1019     first_error->_current_step = 0;         // reset current_step
1020     first_error->_current_step_info = "";   // reset current_step string
1021 
1022     // Run error reporting to determine whether or not to report the crash.
1023     if (!transmit_report_done && should_report_bug(first_error->_id)) {
1024       transmit_report_done = true;
1025       FILE* hs_err = os::open(log.fd(), "r");
1026       if (NULL != hs_err) {
1027         ErrorReporter er;
1028         er.call(hs_err, buffer, O_BUFLEN);
1029       }
1030     }
1031 
1032     if (log.fd() != defaultStream::output_fd()) {
1033       close(log.fd());
1034     }
1035 
1036     log.set_fd(-1);
1037     log_done = true;
1038   }
1039 
1040 
1041   static bool skip_OnError = false;
1042   if (!skip_OnError && OnError && OnError[0]) {
1043     skip_OnError = true;
1044 
1045     out.print_raw_cr("#");
1046     out.print_raw   ("# -XX:OnError=\"");
1047     out.print_raw   (OnError);
1048     out.print_raw_cr("\"");
1049 
1050     char* cmd;
1051     const char* ptr = OnError;
1052     while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1053       out.print_raw   ("#   Executing ");
1054 #if defined(LINUX) || defined(_ALLBSD_SOURCE)
1055       out.print_raw   ("/bin/sh -c ");
1056 #elif defined(SOLARIS)
1057       out.print_raw   ("/usr/bin/sh -c ");
1058 #endif
1059       out.print_raw   ("\"");
1060       out.print_raw   (cmd);
1061       out.print_raw_cr("\" ...");
1062 
1063       if (os::fork_and_exec(cmd, true) < 0) {
1064         out.print_cr("os::fork_and_exec failed: %s (%d)", strerror(errno), errno);
1065       }
1066     }
1067 
1068     // done with OnError
1069     OnError = NULL;
1070   }
1071 
1072   static bool skip_replay = ReplayCompiles; // Do not overwrite file during replay
1073   if (DumpReplayDataOnError && _thread && _thread->is_Compiler_thread() && !skip_replay) {
1074     skip_replay = true;
1075     ciEnv* env = ciEnv::current();
1076     if (env != NULL) {
1077       int fd = prepare_log_file(ReplayDataFile, "replay_pid%p.log", buffer, sizeof(buffer));
1078       if (fd != -1) {
1079         FILE* replay_data_file = os::open(fd, "w");
1080         if (replay_data_file != NULL) {
1081           fileStream replay_data_stream(replay_data_file, /*need_close=*/true);
1082           env->dump_replay_data_unsafe(&replay_data_stream);
1083           out.print_raw("#\n# Compiler replay data is saved as:\n# ");
1084           out.print_raw_cr(buffer);
1085         } else {
1086           out.print_raw("#\n# Can't open file to dump replay data. Error: ");
1087           out.print_raw_cr(strerror(os::get_last_error()));
1088         }
1089       }
1090     }
1091   }
1092 
1093   static bool skip_bug_url = !should_report_bug(first_error->_id);
1094   if (!skip_bug_url) {
1095     skip_bug_url = true;
1096 
1097     out.print_raw_cr("#");
1098     print_bug_submit_message(&out, _thread);
1099   }
1100 
1101   if (!UseOSErrorReporting) {
1102     // os::abort() will call abort hooks, try it first.
1103     static bool skip_os_abort = false;
1104     if (!skip_os_abort) {
1105       skip_os_abort = true;
1106       bool dump_core = should_report_bug(first_error->_id);
1107       os::abort(dump_core);
1108     }
1109 
1110     // if os::abort() doesn't abort, try os::die();
1111     os::die();
1112   }
1113 }
1114 
1115 /*
1116  * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this
1117  * ensures utilities such as jmap can observe the process is a consistent state.
1118  */
1119 class VM_ReportJavaOutOfMemory : public VM_Operation {
1120  private:
1121   VMError *_err;
1122  public:
1123   VM_ReportJavaOutOfMemory(VMError *err) { _err = err; }
1124   VMOp_Type type() const                 { return VMOp_ReportJavaOutOfMemory; }
1125   void doit();
1126 };
1127 
1128 void VM_ReportJavaOutOfMemory::doit() {
1129   // Don't allocate large buffer on stack
1130   static char buffer[O_BUFLEN];
1131 
1132   tty->print_cr("#");
1133   tty->print_cr("# java.lang.OutOfMemoryError: %s", _err->message());
1134   tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError);
1135 
1136   // make heap parsability
1137   Universe::heap()->ensure_parsability(false);  // no need to retire TLABs
1138 
1139   char* cmd;
1140   const char* ptr = OnOutOfMemoryError;
1141   while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
1142     tty->print("#   Executing ");
1143 #if defined(LINUX)
1144     tty->print  ("/bin/sh -c ");
1145 #elif defined(SOLARIS)
1146     tty->print  ("/usr/bin/sh -c ");
1147 #endif
1148     tty->print_cr("\"%s\"...", cmd);
1149 
1150     if (os::fork_and_exec(cmd) < 0) {
1151       tty->print_cr("os::fork_and_exec failed: %s (%d)", strerror(errno), errno);
1152     }
1153   }
1154 }
1155 
1156 void VMError::report_java_out_of_memory() {
1157   if (OnOutOfMemoryError && OnOutOfMemoryError[0]) {
1158     MutexLocker ml(Heap_lock);
1159     VM_ReportJavaOutOfMemory op(this);
1160     VMThread::execute(&op);
1161   }
1162 }
--- EOF ---