jdk8-mips64-public/hotspot: src/share/vm/utilities/decoder.cpp@bf8a21c3ab3b (annotated)

src/share/vm/utilities/decoder.cpp@bf8a21c3ab3b (annotated)

src/share/vm/utilities/decoder.cpp

Mon, 07 Oct 2013 14:10:29 +0400

author: vlivanov
date: Mon, 07 Oct 2013 14:10:29 +0400
changeset 5903: bf8a21c3ab3b
parent 5667: 38f750491293
child 6198: 55fb97c4c58d
child 6472: 2b8e28fdf503
permissions: -rw-r--r--

8025849: Redundant "pid" in VM log file name (e.g. hotspot_pidpid12345.log)
Reviewed-by: twisti, azeemj

 /*
  * Copyright (c) 1997, 2012, 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 "prims/jvm.h"
 #include "runtime/os.hpp"
 #include "utilities/decoder.hpp"
 #include "utilities/vmError.hpp"
 #if defined(_WINDOWS)
   #include "decoder_windows.hpp"
 #elif defined(__APPLE__)
   #include "decoder_machO.hpp"
 #else
   #include "decoder_elf.hpp"
 #endif
 AbstractDecoder*  Decoder::_shared_decoder = NULL;
 AbstractDecoder*  Decoder::_error_handler_decoder = NULL;
 NullDecoder       Decoder::_do_nothing_decoder;
 Mutex*            Decoder::_shared_decoder_lock = new Mutex(Mutex::native,
                                 "SharedDecoderLock");
 AbstractDecoder* Decoder::get_shared_instance() {
   assert(_shared_decoder_lock != NULL && _shared_decoder_lock->owned_by_self(),
     "Require DecoderLock to enter");
   if (_shared_decoder == NULL) {
     _shared_decoder = create_decoder();
   }
   return _shared_decoder;
 }
 AbstractDecoder* Decoder::get_error_handler_instance() {
   if (_error_handler_decoder == NULL) {
     _error_handler_decoder = create_decoder();
   }
   return _error_handler_decoder;
 }
 AbstractDecoder* Decoder::create_decoder() {
   AbstractDecoder* decoder;
 #if defined(_WINDOWS)
   decoder = new (std::nothrow) WindowsDecoder();
 #elif defined (__APPLE__)
   decoder = new (std::nothrow)MachODecoder();
 #else
   decoder = new (std::nothrow)ElfDecoder();
 #endif
   if (decoder == NULL || decoder->has_error()) {
     if (decoder != NULL) {
       delete decoder;
     }
     decoder = &_do_nothing_decoder;
   }
   return decoder;
 }
 inline bool DecoderLocker::is_first_error_thread() {
   return (os::current_thread_id() == VMError::get_first_error_tid());
 }
 DecoderLocker::DecoderLocker() :
   MutexLockerEx(DecoderLocker::is_first_error_thread() ?
                 NULL : Decoder::shared_decoder_lock(), true) {
   _decoder = is_first_error_thread() ?
     Decoder::get_error_handler_instance() : Decoder::get_shared_instance();
   assert(_decoder != NULL, "null decoder");
 }
 Mutex* Decoder::shared_decoder_lock() {
   assert(_shared_decoder_lock != NULL, "Just check");
   return _shared_decoder_lock;
 }
 bool Decoder::decode(address addr, char* buf, int buflen, int* offset, const char* modulepath) {
   assert(_shared_decoder_lock != NULL, "Just check");
   bool error_handling_thread = os::current_thread_id() == VMError::first_error_tid;
   MutexLockerEx locker(error_handling_thread ? NULL : _shared_decoder_lock, true);
   AbstractDecoder* decoder = error_handling_thread ?
     get_error_handler_instance(): get_shared_instance();
   assert(decoder != NULL, "null decoder");
   return decoder->decode(addr, buf, buflen, offset, modulepath);
 }
 bool Decoder::decode(address addr, char* buf, int buflen, int* offset, const void* base) {
   assert(_shared_decoder_lock != NULL, "Just check");
   bool error_handling_thread = os::current_thread_id() == VMError::first_error_tid;
   MutexLockerEx locker(error_handling_thread ? NULL : _shared_decoder_lock, true);
   AbstractDecoder* decoder = error_handling_thread ?
     get_error_handler_instance(): get_shared_instance();
   assert(decoder != NULL, "null decoder");
   return decoder->decode(addr, buf, buflen, offset, base);
 }
 bool Decoder::demangle(const char* symbol, char* buf, int buflen) {
   assert(_shared_decoder_lock != NULL, "Just check");
   bool error_handling_thread = os::current_thread_id() == VMError::first_error_tid;
   MutexLockerEx locker(error_handling_thread ? NULL : _shared_decoder_lock, true);
   AbstractDecoder* decoder = error_handling_thread ?
     get_error_handler_instance(): get_shared_instance();
   assert(decoder != NULL, "null decoder");
   return decoder->demangle(symbol, buf, buflen);
 }
 bool Decoder::can_decode_C_frame_in_vm() {
   assert(_shared_decoder_lock != NULL, "Just check");
   bool error_handling_thread = os::current_thread_id() == VMError::first_error_tid;
   MutexLockerEx locker(error_handling_thread ? NULL : _shared_decoder_lock, true);
   AbstractDecoder* decoder = error_handling_thread ?
     get_error_handler_instance(): get_shared_instance();
   assert(decoder != NULL, "null decoder");
   return decoder->can_decode_C_frame_in_vm();
 }
 /*
  * Shutdown shared decoder and replace it with
  * _do_nothing_decoder. Do nothing with error handler
  * instance, since the JVM is going down.
  */
 void Decoder::shutdown() {
   assert(_shared_decoder_lock != NULL, "Just check");
   MutexLockerEx locker(_shared_decoder_lock, true);
   if (_shared_decoder != NULL &&
     _shared_decoder != &_do_nothing_decoder) {
     delete _shared_decoder;
   }
   _shared_decoder = &_do_nothing_decoder;
 }

Mercurial > jdk8-mips64-public > hotspot / annotate

src/share/vm/utilities/decoder.cpp@bf8a21c3ab3b (annotated)

src/share/vm/utilities/decoder.cpp