jdk8-mips64-public/hotspot: src/share/vm/utilities/vmError.cpp@1d1603768966 (annotated)

src/share/vm/utilities/vmError.cpp@1d1603768966 (annotated)

src/share/vm/utilities/vmError.cpp

Tue, 05 Apr 2011 14:12:31 -0700

author: trims
date: Tue, 05 Apr 2011 14:12:31 -0700
changeset 2708: 1d1603768966
parent 2584: da091bb67459
child 3156: f08d439fab8c
permissions: -rw-r--r--

7010070: Update all 2010 Oracle-changed OpenJDK files to have the proper copyright dates - second pass
Summary: Update the copyright to be 2010 on all changed files in OpenJDK
Reviewed-by: ohair

 /*
  * Copyright (c) 2003, 2011, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #include "precompiled.hpp"
 #include "compiler/compileBroker.hpp"
 #include "gc_interface/collectedHeap.hpp"
 #include "runtime/arguments.hpp"
 #include "runtime/frame.inline.hpp"
 #include "runtime/init.hpp"
 #include "runtime/os.hpp"
 #include "runtime/thread.hpp"
 #include "runtime/vmThread.hpp"
 #include "runtime/vm_operations.hpp"
 #include "utilities/debug.hpp"
 #include "utilities/decoder.hpp"
 #include "utilities/defaultStream.hpp"
 #include "utilities/errorReporter.hpp"
 #include "utilities/top.hpp"
 #include "utilities/vmError.hpp"
 // List of environment variables that should be reported in error log file.
 const char *env_list[] = {
   // All platforms
   "JAVA_HOME", "JRE_HOME", "JAVA_TOOL_OPTIONS", "_JAVA_OPTIONS", "CLASSPATH",
   "JAVA_COMPILER", "PATH", "USERNAME",
   // Env variables that are defined on Solaris/Linux
   "LD_LIBRARY_PATH", "LD_PRELOAD", "SHELL", "DISPLAY",
   "HOSTTYPE", "OSTYPE", "ARCH", "MACHTYPE",
   // defined on Linux
   "LD_ASSUME_KERNEL", "_JAVA_SR_SIGNUM",
   // defined on Windows
   "OS", "PROCESSOR_IDENTIFIER", "_ALT_JAVA_HOME_DIR",
   (const char *)0
 };
 // Fatal error handler for internal errors and crashes.
 //
 // The default behavior of fatal error handler is to print a brief message
 // to standard out (defaultStream::output_fd()), then save detailed information
 // into an error report file (hs_err_pid<pid>.log) and abort VM. If multiple
 // threads are having troubles at the same time, only one error is reported.
 // The thread that is reporting error will abort VM when it is done, all other
 // threads are blocked forever inside report_and_die().
 // Constructor for crashes
 VMError::VMError(Thread* thread, unsigned int sig, address pc, void* siginfo, void* context) {
     _thread = thread;
     _id = sig;
     _pc   = pc;
     _siginfo = siginfo;
     _context = context;
     _verbose = false;
     _current_step = 0;
     _current_step_info = NULL;
     _message = NULL;
     _detail_msg = NULL;
     _filename = NULL;
     _lineno = 0;
     _size = 0;
 }
 // Constructor for internal errors
 VMError::VMError(Thread* thread, const char* filename, int lineno,
                  const char* message, const char * detail_msg)
 {
   _thread = thread;
   _id = internal_error;     // Value that's not an OS exception/signal
   _filename = filename;
   _lineno = lineno;
   _message = message;
   _detail_msg = detail_msg;
   _verbose = false;
   _current_step = 0;
   _current_step_info = NULL;
   _pc = NULL;
   _siginfo = NULL;
   _context = NULL;
   _size = 0;
 }
 // Constructor for OOM errors
 VMError::VMError(Thread* thread, const char* filename, int lineno, size_t size,
                  const char* message) {
     _thread = thread;
     _id = oom_error;     // Value that's not an OS exception/signal
     _filename = filename;
     _lineno = lineno;
     _message = message;
     _detail_msg = NULL;
     _verbose = false;
     _current_step = 0;
     _current_step_info = NULL;
     _pc = NULL;
     _siginfo = NULL;
     _context = NULL;
     _size = size;
 }
 // Constructor for non-fatal errors
 VMError::VMError(const char* message) {
     _thread = NULL;
     _id = internal_error;     // Value that's not an OS exception/signal
     _filename = NULL;
     _lineno = 0;
     _message = message;
     _detail_msg = NULL;
     _verbose = false;
     _current_step = 0;
     _current_step_info = NULL;
     _pc = NULL;
     _siginfo = NULL;
     _context = NULL;
     _size = 0;
 }
 // -XX:OnError=<string>, where <string> can be a list of commands, separated
 // by ';'. "%p" is replaced by current process id (pid); "%%" is replaced by
 // a single "%". Some examples:
 //
 // -XX:OnError="pmap %p"                // show memory map
 // -XX:OnError="gcore %p; dbx - %p"     // dump core and launch debugger
 // -XX:OnError="cat hs_err_pid%p.log | mail my_email@sun.com"
 // -XX:OnError="kill -9 %p"             // ?#!@#
 // A simple parser for -XX:OnError, usage:
 //  ptr = OnError;
 //  while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr) != NULL)
 //     ... ...
 static char* next_OnError_command(char* buf, int buflen, const char** ptr) {
   if (ptr == NULL || *ptr == NULL) return NULL;
   const char* cmd = *ptr;
   // skip leading blanks or ';'
   while (*cmd == ' ' || *cmd == ';') cmd++;
   if (*cmd == '\0') return NULL;
   const char * cmdend = cmd;
   while (*cmdend != '\0' && *cmdend != ';') cmdend++;
   Arguments::copy_expand_pid(cmd, cmdend - cmd, buf, buflen);
   *ptr = (*cmdend == '\0' ? cmdend : cmdend + 1);
   return buf;
 }
 static void print_bug_submit_message(outputStream *out, Thread *thread) {
   if (out == NULL) return;
   out->print_raw_cr("# If you would like to submit a bug report, please visit:");
   out->print_raw   ("#   ");
   out->print_raw_cr(Arguments::java_vendor_url_bug());
   // If the crash is in native code, encourage user to submit a bug to the
   // provider of that code.
   if (thread && thread->is_Java_thread() &&
       !thread->is_hidden_from_external_view()) {
     JavaThread* jt = (JavaThread*)thread;
     if (jt->thread_state() == _thread_in_native) {
       out->print_cr("# The crash happened outside the Java Virtual Machine in native code.\n# See problematic frame for where to report the bug.");
     }
   }
   out->print_raw_cr("#");
 }
 bool VMError::coredump_status;
 char VMError::coredump_message[O_BUFLEN];
 void VMError::report_coredump_status(const char* message, bool status) {
   coredump_status = status;
   strncpy(coredump_message, message, sizeof(coredump_message));
   coredump_message[sizeof(coredump_message)-1] = 0;
 }
 // Return a string to describe the error
 char* VMError::error_string(char* buf, int buflen) {
   char signame_buf[64];
   const char *signame = os::exception_name(_id, signame_buf, sizeof(signame_buf));
   if (signame) {
     jio_snprintf(buf, buflen,
                  "%s (0x%x) at pc=" PTR_FORMAT ", pid=%d, tid=" UINTX_FORMAT,
                  signame, _id, _pc,
                  os::current_process_id(), os::current_thread_id());
   } else if (_filename != NULL && _lineno > 0) {
     // skip directory names
     char separator = os::file_separator()[0];
     const char *p = strrchr(_filename, separator);
     int n = jio_snprintf(buf, buflen,
                          "Internal Error at %s:%d, pid=%d, tid=" UINTX_FORMAT,
                          p ? p + 1 : _filename, _lineno,
                          os::current_process_id(), os::current_thread_id());
     if (n >= 0 && n < buflen && _message) {
       if (_detail_msg) {
         jio_snprintf(buf + n, buflen - n, "%s%s: %s",
                      os::line_separator(), _message, _detail_msg);
       } else {
         jio_snprintf(buf + n, buflen - n, "%sError: %s",
                      os::line_separator(), _message);
       }
     }
   } else {
     jio_snprintf(buf, buflen,
                  "Internal Error (0x%x), pid=%d, tid=" UINTX_FORMAT,
                  _id, os::current_process_id(), os::current_thread_id());
   }
   return buf;
 }
 void VMError::print_stack_trace(outputStream* st, JavaThread* jt,
                                 char* buf, int buflen, bool verbose) {
 #ifdef ZERO
   if (jt->zero_stack()->sp() && jt->top_zero_frame()) {
     // StackFrameStream uses the frame anchor, which may not have
     // been set up.  This can be done at any time in Zero, however,
     // so if it hasn't been set up then we just set it up now and
     // clear it again when we're done.
     bool has_last_Java_frame = jt->has_last_Java_frame();
     if (!has_last_Java_frame)
       jt->set_last_Java_frame();
     st->print("Java frames:");
     // If the top frame is a Shark frame and the frame anchor isn't
     // set up then it's possible that the information in the frame
     // is garbage: it could be from a previous decache, or it could
     // simply have never been written.  So we print a warning...
     StackFrameStream sfs(jt);
     if (!has_last_Java_frame && !sfs.is_done()) {
       if (sfs.current()->zeroframe()->is_shark_frame()) {
         st->print(" (TOP FRAME MAY BE JUNK)");
       }
     }
     st->cr();
     // Print the frames
     for(int i = 0; !sfs.is_done(); sfs.next(), i++) {
       sfs.current()->zero_print_on_error(i, st, buf, buflen);
       st->cr();
     }
     // Reset the frame anchor if necessary
     if (!has_last_Java_frame)
       jt->reset_last_Java_frame();
   }
 #else
   if (jt->has_last_Java_frame()) {
     st->print_cr("Java frames: (J=compiled Java code, j=interpreted, Vv=VM code)");
     for(StackFrameStream sfs(jt); !sfs.is_done(); sfs.next()) {
       sfs.current()->print_on_error(st, buf, buflen, verbose);
       st->cr();
     }
   }
 #endif // ZERO
 }
 // This is the main function to report a fatal error. Only one thread can
 // call this function, so we don't need to worry about MT-safety. But it's
 // possible that the error handler itself may crash or die on an internal
 // error, for example, when the stack/heap is badly damaged. We must be
 // able to handle recursive errors that happen inside error handler.
 //
 // Error reporting is done in several steps. If a crash or internal error
 // occurred when reporting an error, the nested signal/exception handler
 // can skip steps that are already (or partially) done. Error reporting will
 // continue from the next step. This allows us to retrieve and print
 // information that may be unsafe to get after a fatal error. If it happens,
 // you may find nested report_and_die() frames when you look at the stack
 // in a debugger.
 //
 // In general, a hang in error handler is much worse than a crash or internal
 // error, as it's harder to recover from a hang. Deadlock can happen if we
 // try to grab a lock that is already owned by current thread, or if the
 // owner is blocked forever (e.g. in os::infinite_sleep()). If possible, the
 // error handler and all the functions it called should avoid grabbing any
 // lock. An important thing to notice is that memory allocation needs a lock.
 //
 // We should avoid using large stack allocated buffers. Many errors happen
 // when stack space is already low. Making things even worse is that there
 // could be nested report_and_die() calls on stack (see above). Only one
 // thread can report error, so large buffers are statically allocated in data
 // segment.
 void VMError::report(outputStream* st) {
 # define BEGIN if (_current_step == 0) { _current_step = 1;
 # define STEP(n, s) } if (_current_step < n) { _current_step = n; _current_step_info = s;
 # define END }
   // don't allocate large buffer on stack
   static char buf[O_BUFLEN];
   BEGIN
   STEP(10, "(printing fatal error message)")
     st->print_cr("#");
     if (should_report_bug(_id)) {
       st->print_cr("# A fatal error has been detected by the Java Runtime Environment:");
     } else {
       st->print_cr("# There is insufficient memory for the Java "
                    "Runtime Environment to continue.");
     }
   STEP(15, "(printing type of error)")
      switch(_id) {
        case oom_error:
          if (_size) {
            st->print("# Native memory allocation (malloc) failed to allocate ");
            jio_snprintf(buf, sizeof(buf), SIZE_FORMAT, _size);
            st->print(buf);
            st->print(" bytes");
            if (_message != NULL) {
              st->print(" for ");
              st->print(_message);
            }
            st->cr();
          } else {
            if (_message != NULL)
              st->print("# ");
              st->print_cr(_message);
          }
          // In error file give some solutions
          if (_verbose) {
            st->print_cr("# Possible reasons:");
            st->print_cr("#   The system is out of physical RAM or swap space");
            st->print_cr("#   In 32 bit mode, the process size limit was hit");
            st->print_cr("# Possible solutions:");
            st->print_cr("#   Reduce memory load on the system");
            st->print_cr("#   Increase physical memory or swap space");
            st->print_cr("#   Check if swap backing store is full");
            st->print_cr("#   Use 64 bit Java on a 64 bit OS");
            st->print_cr("#   Decrease Java heap size (-Xmx/-Xms)");
            st->print_cr("#   Decrease number of Java threads");
            st->print_cr("#   Decrease Java thread stack sizes (-Xss)");
            st->print_cr("#   Set larger code cache with -XX:ReservedCodeCacheSize=");
            st->print_cr("# This output file may be truncated or incomplete.");
          } else {
            return;  // that's enough for the screen
          }
          break;
        case internal_error:
        default:
          break;
      }
   STEP(20, "(printing exception/signal name)")
      st->print_cr("#");
      st->print("#  ");
      // Is it an OS exception/signal?
      if (os::exception_name(_id, buf, sizeof(buf))) {
        st->print("%s", buf);
        st->print(" (0x%x)", _id);                // signal number
        st->print(" at pc=" PTR_FORMAT, _pc);
      } else {
        if (should_report_bug(_id)) {
          st->print("Internal Error");
        } else {
          st->print("Out of Memory Error");
        }
        if (_filename != NULL && _lineno > 0) {
 #ifdef PRODUCT
          // In product mode chop off pathname?
          char separator = os::file_separator()[0];
          const char *p = strrchr(_filename, separator);
          const char *file = p ? p+1 : _filename;
 #else
          const char *file = _filename;
 #endif
          size_t len = strlen(file);
          size_t buflen = sizeof(buf);
          strncpy(buf, file, buflen);
          if (len + 10 < buflen) {
            sprintf(buf + len, ":%d", _lineno);
          }
          st->print(" (%s)", buf);
        } else {
          st->print(" (0x%x)", _id);
        }
      }
   STEP(30, "(printing current thread and pid)")
      // process id, thread id
      st->print(", pid=%d", os::current_process_id());
      st->print(", tid=" UINTX_FORMAT, os::current_thread_id());
      st->cr();
   STEP(40, "(printing error message)")
      if (should_report_bug(_id)) {  // already printed the message.
        // error message
        if (_detail_msg) {
          st->print_cr("#  %s: %s", _message ? _message : "Error", _detail_msg);
        } else if (_message) {
          st->print_cr("#  Error: %s", _message);
        }
     }
   STEP(50, "(printing Java version string)")
      // VM version
      st->print_cr("#");
      JDK_Version::current().to_string(buf, sizeof(buf));
      st->print_cr("# JRE version: %s", buf);
      st->print_cr("# Java VM: %s (%s %s %s %s)",
                    Abstract_VM_Version::vm_name(),
                    Abstract_VM_Version::vm_release(),
                    Abstract_VM_Version::vm_info_string(),
                    Abstract_VM_Version::vm_platform_string(),
                    UseCompressedOops ? "compressed oops" : ""
                  );
   STEP(60, "(printing problematic frame)")
      // Print current frame if we have a context (i.e. it's a crash)
      if (_context) {
        st->print_cr("# Problematic frame:");
        st->print("# ");
        frame fr = os::fetch_frame_from_context(_context);
        fr.print_on_error(st, buf, sizeof(buf));
        st->cr();
        st->print_cr("#");
      }
   STEP(63, "(printing core file information)")
     st->print("# ");
     if (coredump_status) {
       st->print("Core dump written. Default location: %s", coredump_message);
     } else {
       st->print("Failed to write core dump. %s", coredump_message);
     }
     st->print_cr("");
     st->print_cr("#");
   STEP(65, "(printing bug submit message)")
      if (should_report_bug(_id) && _verbose) {
        print_bug_submit_message(st, _thread);
      }
   STEP(70, "(printing thread)" )
      if (_verbose) {
        st->cr();
        st->print_cr("---------------  T H R E A D  ---------------");
        st->cr();
      }
   STEP(80, "(printing current thread)" )
      // current thread
      if (_verbose) {
        if (_thread) {
          st->print("Current thread (" PTR_FORMAT "):  ", _thread);
          _thread->print_on_error(st, buf, sizeof(buf));
          st->cr();
        } else {
          st->print_cr("Current thread is native thread");
        }
        st->cr();
      }
   STEP(90, "(printing siginfo)" )
      // signal no, signal code, address that caused the fault
      if (_verbose && _siginfo) {
        os::print_siginfo(st, _siginfo);
        st->cr();
      }
   STEP(100, "(printing registers, top of stack, instructions near pc)")
      // registers, top of stack, instructions near pc
      if (_verbose && _context) {
        os::print_context(st, _context);
        st->cr();
      }
   STEP(105, "(printing register info)")
      // decode register contents if possible
      if (_verbose && _context && Universe::is_fully_initialized()) {
        os::print_register_info(st, _context);
        st->cr();
      }
   STEP(110, "(printing stack bounds)" )
      if (_verbose) {
        st->print("Stack: ");
        address stack_top;
        size_t stack_size;
        if (_thread) {
           stack_top = _thread->stack_base();
           stack_size = _thread->stack_size();
        } else {
           stack_top = os::current_stack_base();
           stack_size = os::current_stack_size();
        }
        address stack_bottom = stack_top - stack_size;
        st->print("[" PTR_FORMAT "," PTR_FORMAT "]", stack_bottom, stack_top);
        frame fr = _context ? os::fetch_frame_from_context(_context)
                            : os::current_frame();
        if (fr.sp()) {
          st->print(",  sp=" PTR_FORMAT, fr.sp());
          size_t free_stack_size = pointer_delta(fr.sp(), stack_bottom, 1024);
          st->print(",  free space=" SIZE_FORMAT "k", free_stack_size);
        }
        st->cr();
      }
   STEP(120, "(printing native stack)" )
      if (_verbose) {
        frame fr = _context ? os::fetch_frame_from_context(_context)
                            : os::current_frame();
        // see if it's a valid frame
        if (fr.pc()) {
           st->print_cr("Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)");
           // initialize decoder to decode C frames
           Decoder decoder;
           int count = 0;
           while (count++ < StackPrintLimit) {
              fr.print_on_error(st, buf, sizeof(buf));
              st->cr();
              if (os::is_first_C_frame(&fr)) break;
              fr = os::get_sender_for_C_frame(&fr);
           }
           if (count > StackPrintLimit) {
              st->print_cr("...<more frames>...");
           }
           st->cr();
        }
      }
   STEP(130, "(printing Java stack)" )
      if (_verbose && _thread && _thread->is_Java_thread()) {
        print_stack_trace(st, (JavaThread*)_thread, buf, sizeof(buf));
      }
   STEP(135, "(printing target Java thread stack)" )
      // printing Java thread stack trace if it is involved in GC crash
      if (_verbose && _thread && (_thread->is_Named_thread())) {
        JavaThread*  jt = ((NamedThread *)_thread)->processed_thread();
        if (jt != NULL) {
          st->print_cr("JavaThread " PTR_FORMAT " (nid = " UINTX_FORMAT ") was being processed", jt, jt->osthread()->thread_id());
          print_stack_trace(st, jt, buf, sizeof(buf), true);
        }
      }
   STEP(140, "(printing VM operation)" )
      if (_verbose && _thread && _thread->is_VM_thread()) {
         VMThread* t = (VMThread*)_thread;
         VM_Operation* op = t->vm_operation();
         if (op) {
           op->print_on_error(st);
           st->cr();
           st->cr();
         }
      }
   STEP(150, "(printing current compile task)" )
      if (_verbose && _thread && _thread->is_Compiler_thread()) {
         CompilerThread* t = (CompilerThread*)_thread;
         if (t->task()) {
            st->cr();
            st->print_cr("Current CompileTask:");
            t->task()->print_line_on_error(st, buf, sizeof(buf));
            st->cr();
         }
      }
   STEP(160, "(printing process)" )
      if (_verbose) {
        st->cr();
        st->print_cr("---------------  P R O C E S S  ---------------");
        st->cr();
      }
   STEP(170, "(printing all threads)" )
      // all threads
      if (_verbose && _thread) {
        Threads::print_on_error(st, _thread, buf, sizeof(buf));
        st->cr();
      }
   STEP(175, "(printing VM state)" )
      if (_verbose) {
        // Safepoint state
        st->print("VM state:");
        if (SafepointSynchronize::is_synchronizing()) st->print("synchronizing");
        else if (SafepointSynchronize::is_at_safepoint()) st->print("at safepoint");
        else st->print("not at safepoint");
        // Also see if error occurred during initialization or shutdown
        if (!Universe::is_fully_initialized()) {
          st->print(" (not fully initialized)");
        } else if (VM_Exit::vm_exited()) {
          st->print(" (shutting down)");
        } else {
          st->print(" (normal execution)");
        }
        st->cr();
        st->cr();
      }
   STEP(180, "(printing owned locks on error)" )
      // mutexes/monitors that currently have an owner
      if (_verbose) {
        print_owned_locks_on_error(st);
        st->cr();
      }
   STEP(190, "(printing heap information)" )
      if (_verbose && Universe::is_fully_initialized()) {
        // print heap information before vm abort
        Universe::print_on(st);
        st->cr();
      }
   STEP(195, "(printing code cache information)" )
      if (_verbose && Universe::is_fully_initialized()) {
        // print code cache information before vm abort
        CodeCache::print_bounds(st);
        st->cr();
      }
   STEP(200, "(printing dynamic libraries)" )
      if (_verbose) {
        // dynamic libraries, or memory map
        os::print_dll_info(st);
        st->cr();
      }
   STEP(210, "(printing VM options)" )
      if (_verbose) {
        // VM options
        Arguments::print_on(st);
        st->cr();
      }
   STEP(220, "(printing environment variables)" )
      if (_verbose) {
        os::print_environment_variables(st, env_list, buf, sizeof(buf));
        st->cr();
      }
   STEP(225, "(printing signal handlers)" )
      if (_verbose) {
        os::print_signal_handlers(st, buf, sizeof(buf));
        st->cr();
      }
   STEP(230, "" )
      if (_verbose) {
        st->cr();
        st->print_cr("---------------  S Y S T E M  ---------------");
        st->cr();
      }
   STEP(240, "(printing OS information)" )
      if (_verbose) {
        os::print_os_info(st);
        st->cr();
      }
   STEP(250, "(printing CPU info)" )
      if (_verbose) {
        os::print_cpu_info(st);
        st->cr();
      }
   STEP(260, "(printing memory info)" )
      if (_verbose) {
        os::print_memory_info(st);
        st->cr();
      }
   STEP(270, "(printing internal vm info)" )
      if (_verbose) {
        st->print_cr("vm_info: %s", Abstract_VM_Version::internal_vm_info_string());
        st->cr();
      }
   STEP(280, "(printing date and time)" )
      if (_verbose) {
        os::print_date_and_time(st);
        st->cr();
      }
   END
 # undef BEGIN
 # undef STEP
 # undef END
 }
 VMError* volatile VMError::first_error = NULL;
 volatile jlong VMError::first_error_tid = -1;
 void VMError::report_and_die() {
   // Don't allocate large buffer on stack
   static char buffer[O_BUFLEN];
   // An error could happen before tty is initialized or after it has been
   // destroyed. Here we use a very simple unbuffered fdStream for printing.
   // Only out.print_raw() and out.print_raw_cr() should be used, as other
   // printing methods need to allocate large buffer on stack. To format a
   // string, use jio_snprintf() with a static buffer or use staticBufferStream.
   static fdStream out(defaultStream::output_fd());
   // How many errors occurred in error handler when reporting first_error.
   static int recursive_error_count;
   // We will first print a brief message to standard out (verbose = false),
   // then save detailed information in log file (verbose = true).
   static bool out_done = false;         // done printing to standard out
   static bool log_done = false;         // done saving error log
   static bool transmit_report_done = false; // done error reporting
   static fdStream log;                  // error log
   if (SuppressFatalErrorMessage) {
       os::abort();
   }
   jlong mytid = os::current_thread_id();
   if (first_error == NULL &&
       Atomic::cmpxchg_ptr(this, &first_error, NULL) == NULL) {
     // first time
     first_error_tid = mytid;
     set_error_reported();
     if (ShowMessageBoxOnError || PauseAtExit) {
       show_message_box(buffer, sizeof(buffer));
       // User has asked JVM to abort. Reset ShowMessageBoxOnError so the
       // WatcherThread can kill JVM if the error handler hangs.
       ShowMessageBoxOnError = false;
     }
     // Write a minidump on Windows, check core dump limits on Linux/Solaris
     os::check_or_create_dump(_siginfo, _context, buffer, sizeof(buffer));
     // reset signal handlers or exception filter; make sure recursive crashes
     // are handled properly.
     reset_signal_handlers();
   } else {
     // If UseOsErrorReporting we call this for each level of the call stack
     // while searching for the exception handler.  Only the first level needs
     // to be reported.
     if (UseOSErrorReporting && log_done) return;
     // This is not the first error, see if it happened in a different thread
     // or in the same thread during error reporting.
     if (first_error_tid != mytid) {
       jio_snprintf(buffer, sizeof(buffer),
                    "[thread " INT64_FORMAT " also had an error]",
                    mytid);
       out.print_raw_cr(buffer);
       // error reporting is not MT-safe, block current thread
       os::infinite_sleep();
     } else {
       if (recursive_error_count++ > 30) {
         out.print_raw_cr("[Too many errors, abort]");
         os::die();
       }
       jio_snprintf(buffer, sizeof(buffer),
                    "[error occurred during error reporting %s, id 0x%x]",
                    first_error ? first_error->_current_step_info : "",
                    _id);
       if (log.is_open()) {
         log.cr();
         log.print_raw_cr(buffer);
         log.cr();
       } else {
         out.cr();
         out.print_raw_cr(buffer);
         out.cr();
       }
     }
   }
   // print to screen
   if (!out_done) {
     first_error->_verbose = false;
     staticBufferStream sbs(buffer, sizeof(buffer), &out);
     first_error->report(&sbs);
     out_done = true;
     first_error->_current_step = 0;         // reset current_step
     first_error->_current_step_info = "";   // reset current_step string
   }
   // print to error log file
   if (!log_done) {
     first_error->_verbose = true;
     // see if log file is already open
     if (!log.is_open()) {
       // open log file
       int fd = -1;
       if (ErrorFile != NULL) {
         bool copy_ok =
           Arguments::copy_expand_pid(ErrorFile, strlen(ErrorFile), buffer, sizeof(buffer));
         if (copy_ok) {
           fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
         }
       }
       if (fd == -1) {
         const char *cwd = os::get_current_directory(buffer, sizeof(buffer));
         size_t len = strlen(cwd);
         // either user didn't specify, or the user's location failed,
         // so use the default name in the current directory
         jio_snprintf(&buffer[len], sizeof(buffer)-len, "%shs_err_pid%u.log",
                      os::file_separator(), os::current_process_id());
         fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
       }
       if (fd == -1) {
         const char * tmpdir = os::get_temp_directory();
         // try temp directory if it exists.
         if (tmpdir != NULL && tmpdir[0] != '\0') {
           jio_snprintf(buffer, sizeof(buffer), "%s%shs_err_pid%u.log",
                        tmpdir, os::file_separator(), os::current_process_id());
           fd = open(buffer, O_RDWR | O_CREAT | O_TRUNC, 0666);
         }
       }
       if (fd != -1) {
         out.print_raw("# An error report file with more information is saved as:\n# ");
         out.print_raw_cr(buffer);
         os::set_error_file(buffer);
         log.set_fd(fd);
       } else {
         out.print_raw_cr("# Can not save log file, dump to screen..");
         log.set_fd(defaultStream::output_fd());
         /* Error reporting currently needs dumpfile.
          * Maybe implement direct streaming in the future.*/
         transmit_report_done = true;
       }
     }
     staticBufferStream sbs(buffer, O_BUFLEN, &log);
     first_error->report(&sbs);
     first_error->_current_step = 0;         // reset current_step
     first_error->_current_step_info = "";   // reset current_step string
     // Run error reporting to determine whether or not to report the crash.
     if (!transmit_report_done && should_report_bug(first_error->_id)) {
       transmit_report_done = true;
       FILE* hs_err = ::fdopen(log.fd(), "r");
       if (NULL != hs_err) {
         ErrorReporter er;
         er.call(hs_err, buffer, O_BUFLEN);
       }
     }
     if (log.fd() != defaultStream::output_fd()) {
       close(log.fd());
     }
     log.set_fd(-1);
     log_done = true;
   }
   static bool skip_OnError = false;
   if (!skip_OnError && OnError && OnError[0]) {
     skip_OnError = true;
     out.print_raw_cr("#");
     out.print_raw   ("# -XX:OnError=\"");
     out.print_raw   (OnError);
     out.print_raw_cr("\"");
     char* cmd;
     const char* ptr = OnError;
     while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
       out.print_raw   ("#   Executing ");
 #if defined(LINUX)
       out.print_raw   ("/bin/sh -c ");
 #elif defined(SOLARIS)
       out.print_raw   ("/usr/bin/sh -c ");
 #endif
       out.print_raw   ("\"");
       out.print_raw   (cmd);
       out.print_raw_cr("\" ...");
       os::fork_and_exec(cmd);
     }
     // done with OnError
     OnError = NULL;
   }
   static bool skip_bug_url = !should_report_bug(first_error->_id);
   if (!skip_bug_url) {
     skip_bug_url = true;
     out.print_raw_cr("#");
     print_bug_submit_message(&out, _thread);
   }
   if (!UseOSErrorReporting) {
     // os::abort() will call abort hooks, try it first.
     static bool skip_os_abort = false;
     if (!skip_os_abort) {
       skip_os_abort = true;
       bool dump_core = should_report_bug(first_error->_id);
       os::abort(dump_core);
     }
     // if os::abort() doesn't abort, try os::die();
     os::die();
   }
 }
 /*
  * OnOutOfMemoryError scripts/commands executed while VM is a safepoint - this
  * ensures utilities such as jmap can observe the process is a consistent state.
  */
 class VM_ReportJavaOutOfMemory : public VM_Operation {
  private:
   VMError *_err;
  public:
   VM_ReportJavaOutOfMemory(VMError *err) { _err = err; }
   VMOp_Type type() const                 { return VMOp_ReportJavaOutOfMemory; }
   void doit();
 };
 void VM_ReportJavaOutOfMemory::doit() {
   // Don't allocate large buffer on stack
   static char buffer[O_BUFLEN];
   tty->print_cr("#");
   tty->print_cr("# java.lang.OutOfMemoryError: %s", _err->message());
   tty->print_cr("# -XX:OnOutOfMemoryError=\"%s\"", OnOutOfMemoryError);
   // make heap parsability
   Universe::heap()->ensure_parsability(false);  // no need to retire TLABs
   char* cmd;
   const char* ptr = OnOutOfMemoryError;
   while ((cmd = next_OnError_command(buffer, sizeof(buffer), &ptr)) != NULL){
     tty->print("#   Executing ");
 #if defined(LINUX)
     tty->print  ("/bin/sh -c ");
 #elif defined(SOLARIS)
     tty->print  ("/usr/bin/sh -c ");
 #endif
     tty->print_cr("\"%s\"...", cmd);
     os::fork_and_exec(cmd);
   }
 }
 void VMError::report_java_out_of_memory() {
   if (OnOutOfMemoryError && OnOutOfMemoryError[0]) {
     MutexLocker ml(Heap_lock);
     VM_ReportJavaOutOfMemory op(this);
     VMThread::execute(&op);
   }
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/utilities/vmError.cpp@1d1603768966 (annotated)

src/share/vm/utilities/vmError.cpp