Sat, 18 May 2013 20:41:01 -0700
8014262: PrintStringTableStatistics should include more footprint info
Summary: Added info for the string/symbol objects and the hash entries
Reviewed-by: coleenp, rbackman
1 /*
2 * Copyright (c) 2003, 2012, 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 */
25 #ifndef SHARE_VM_UTILITIES_VMERROR_HPP
26 #define SHARE_VM_UTILITIES_VMERROR_HPP
28 #include "utilities/globalDefinitions.hpp"
30 class Decoder;
31 class VM_ReportJavaOutOfMemory;
33 class VMError : public StackObj {
34 friend class VM_ReportJavaOutOfMemory;
35 friend class Decoder;
37 int _id; // Solaris/Linux signals: 0 - SIGRTMAX
38 // Windows exceptions: 0xCxxxxxxx system errors
39 // 0x8xxxxxxx system warnings
41 const char * _message;
42 const char * _detail_msg;
44 Thread * _thread; // NULL if it's native thread
47 // additional info for crashes
48 address _pc; // faulting PC
49 void * _siginfo; // ExceptionRecord on Windows,
50 // siginfo_t on Solaris/Linux
51 void * _context; // ContextRecord on Windows,
52 // ucontext_t on Solaris/Linux
54 // additional info for VM internal errors
55 const char * _filename;
56 int _lineno;
58 // used by fatal error handler
59 int _current_step;
60 const char * _current_step_info;
61 int _verbose;
62 // First error, and its thread id. We must be able to handle native thread,
63 // so use thread id instead of Thread* to identify thread.
64 static VMError* volatile first_error;
65 static volatile jlong first_error_tid;
67 // Core dump status, false if we have been unable to write a core/minidump for some reason
68 static bool coredump_status;
70 // When coredump_status is set to true this will contain the name/path to the core/minidump,
71 // if coredump_status if false, this will (hopefully) contain a useful error explaining why
72 // no core/minidump has been written to disk
73 static char coredump_message[O_BUFLEN];
75 // used by reporting about OOM
76 size_t _size;
78 // set signal handlers on Solaris/Linux or the default exception filter
79 // on Windows, to handle recursive crashes.
80 void reset_signal_handlers();
82 // handle -XX:+ShowMessageBoxOnError. buf is used to format the message string
83 void show_message_box(char* buf, int buflen);
85 // generate an error report
86 void report(outputStream* st);
88 // generate a stack trace
89 static void print_stack_trace(outputStream* st, JavaThread* jt,
90 char* buf, int buflen, bool verbose = false);
92 // accessor
93 const char* message() const { return _message; }
94 const char* detail_msg() const { return _detail_msg; }
95 bool should_report_bug(unsigned int id) {
96 return (id != OOM_MALLOC_ERROR) && (id != OOM_MMAP_ERROR);
97 }
99 public:
101 // Constructor for crashes
102 VMError(Thread* thread, unsigned int sig, address pc, void* siginfo,
103 void* context);
104 // Constructor for VM internal errors
105 VMError(Thread* thread, const char* filename, int lineno,
106 const char* message, const char * detail_msg);
108 // Constructor for VM OOM errors
109 VMError(Thread* thread, const char* filename, int lineno, size_t size,
110 VMErrorType vm_err_type, const char* message);
111 // Constructor for non-fatal errors
112 VMError(const char* message);
114 // return a string to describe the error
115 char *error_string(char* buf, int buflen);
117 // Report status of core/minidump
118 static void report_coredump_status(const char* message, bool status);
120 // main error reporting function
121 void report_and_die();
123 // reporting OutOfMemoryError
124 void report_java_out_of_memory();
126 // returns original flags for signal, if it was resetted, or -1 if
127 // signal was not changed by error reporter
128 static int get_resetted_sigflags(int sig);
130 // returns original handler for signal, if it was resetted, or NULL if
131 // signal was not changed by error reporter
132 static address get_resetted_sighandler(int sig);
134 // check to see if fatal error reporting is in progress
135 static bool fatal_error_in_progress() { return first_error != NULL; }
136 };
138 #endif // SHARE_VM_UTILITIES_VMERROR_HPP