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 #ifndef SHARE_VM_UTILITIES_VMERROR_HPP
26 #define SHARE_VM_UTILITIES_VMERROR_HPP
27
28 #include "utilities/globalDefinitions.hpp"
29
30 class Decoder;
31 class VM_ReportJavaOutOfMemory;
32
33 class VMError : public StackObj {
34 friend class VM_ReportJavaOutOfMemory;
35 friend class Decoder;
36
37 int _id; // Solaris/Linux signals: 0 - SIGRTMAX
38 // Windows exceptions: 0xCxxxxxxx system errors
39 // 0x8xxxxxxx system warnings
40
41 const char * _message;
42 const char * _detail_msg;
43
44 Thread * _thread; // NULL if it's native thread
45
46
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
53
54 // additional info for VM internal errors
55 const char * _filename;
56 int _lineno;
57
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;
66
67 // Core dump status, false if we have been unable to write a core/minidump for some reason
68 static bool coredump_status;
69
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];
74
75 // used by reporting about OOM
76 size_t _size;
77
78 // set signal handlers on Solaris/Linux or the default exception filter
79 // on Windows, to handle recursive crashes.
80 void reset_signal_handlers();
81
82 // handle -XX:+ShowMessageBoxOnError. buf is used to format the message string
83 void show_message_box(char* buf, int buflen);
84
85 // generate an error report
86 void report(outputStream* st);
87
88 // generate a stack trace
89 static void print_stack_trace(outputStream* st, JavaThread* jt,
90 char* buf, int buflen, bool verbose = false);
91
92 static const char* gc_mode();
93 static void print_oom_reasons(outputStream* st);
94
95 // accessor
96 const char* message() const { return _message; }
97 const char* detail_msg() const { return _detail_msg; }
98 bool should_report_bug(unsigned int id) {
99 return (id != OOM_MALLOC_ERROR) && (id != OOM_MMAP_ERROR);
100 }
101
102 static fdStream out;
103 static fdStream log; // error log used by VMError::report_and_die()
104
105 public:
106
107 // Constructor for crashes
108 VMError(Thread* thread, unsigned int sig, address pc, void* siginfo,
109 void* context);
110 // Constructor for VM internal errors
111 VMError(Thread* thread, const char* filename, int lineno,
112 const char* message, const char * detail_msg);
113
114 // Constructor for VM OOM errors
115 VMError(Thread* thread, const char* filename, int lineno, size_t size,
116 VMErrorType vm_err_type, const char* message);
117 // Constructor for non-fatal errors
118 VMError(const char* message);
119
120 // return a string to describe the error
121 char *error_string(char* buf, int buflen);
122
123 // Record status of core/minidump
124 static void record_coredump_status(const char* message, bool status);
125
126 // main error reporting function
127 void report_and_die();
128
129 // reporting OutOfMemoryError
130 void report_java_out_of_memory();
131
132 // returns original flags for signal, if it was resetted, or -1 if
133 // signal was not changed by error reporter
134 static int get_resetted_sigflags(int sig);
135
136 // returns original handler for signal, if it was resetted, or NULL if
137 // signal was not changed by error reporter
138 static address get_resetted_sighandler(int sig);
139
140 // check to see if fatal error reporting is in progress
141 static bool fatal_error_in_progress() { return first_error != NULL; }
142
143 static jlong get_first_error_tid() {
144 return first_error_tid;
145 }
146 };
147
148 #endif // SHARE_VM_UTILITIES_VMERROR_HPP
|
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 #ifndef SHARE_VM_UTILITIES_VMERROR_HPP
26 #define SHARE_VM_UTILITIES_VMERROR_HPP
27
28 #include "utilities/globalDefinitions.hpp"
29
30 class Decoder;
31 class VM_ReportJavaOutOfMemory;
32
33 class VMError : public AllStatic {
34 friend class VM_ReportJavaOutOfMemory;
35 friend class Decoder;
36
37 // used by fatal error handler
38 static int _current_step;
39 static const char * _current_step_info;
40 static int _verbose;
41 // Thread id of the first error. We must be able to handle native thread,
42 // so use thread id instead of Thread* to identify thread.
43 static volatile jlong first_error_tid;
44
45 // Core dump status, false if we have been unable to write a core/minidump for some reason
46 static bool coredump_status;
47
48 // When coredump_status is set to true this will contain the name/path to the core/minidump,
49 // if coredump_status if false, this will (hopefully) contain a useful error explaining why
50 // no core/minidump has been written to disk
51 static char coredump_message[O_BUFLEN];
52
53
54 // set signal handlers on Solaris/Linux or the default exception filter
55 // on Windows, to handle recursive crashes.
56 static void reset_signal_handlers();
57
58 // handle -XX:+ShowMessageBoxOnError. buf is used to format the message string
59 static void show_message_box(char* buf, int buflen, int id, const char* message,
60 const char* detail_fmt, va_list detail_args, address pc,
61 const char* filename, int lineno) ATTRIBUTE_PRINTF(5, 0);
62
63 // generate an error report
64 static void report(outputStream* st, int id, const char* message, const char* detail_fmt,
65 va_list detail_msg_args, Thread* thread, address pc, void* siginfo,
66 void* context, const char* filename, int lineno, size_t size) ATTRIBUTE_PRINTF(4, 0);
67
68 // generate a stack trace
69 static void print_stack_trace(outputStream* st, JavaThread* jt,
70 char* buf, int buflen, bool verbose = false);
71
72 static const char* gc_mode();
73 static void print_oom_reasons(outputStream* st);
74
75 static bool should_report_bug(unsigned int id) {
76 return (id != OOM_MALLOC_ERROR) && (id != OOM_MMAP_ERROR);
77 }
78
79 static void report_and_die(Thread* thread, unsigned int sig, address pc, void* siginfo,
80 void* context, const char* detail_fmt, ...) ATTRIBUTE_PRINTF(6, 7);
81 static void report_and_die(const char* message, const char* detail_fmt, ...) ATTRIBUTE_PRINTF(2, 3);
82
83 static fdStream out;
84 static fdStream log; // error log used by VMError::report_and_die()
85
86 public:
87
88 // return a string to describe the error
89 static char* error_string(char* buf, int buflen, int id, const char* message,
90 const char* detail_fmt, va_list detail_args, address pc,
91 const char* filename, int lineno) ATTRIBUTE_PRINTF(5, 0);
92
93 // Record status of core/minidump
94 static void record_coredump_status(const char* message, bool status);
95
96 /**
97 * main error reporting function
98 *
99 * int id; // Solaris/Linux signals: 0 - SIGRTMAX
100 * // Windows exceptions: 0xCxxxxxxx system errors
101 * // 0x8xxxxxxx system warnings
102 * const char* message;
103 * const char* detail_fmt;
104 * va_list detail_args;
105 * Thread* thread; // NULL if it's native thread
106 *
107 * additional info for crashes
108 *
109 * address pc; // faulting PC
110 * void* siginfo; // ExceptionRecord on Windows,
111 * // siginfo_t on Solaris/Linux
112 * void* context; // ContextRecord on Windows,
113 * // ucontext_t on Solaris/Linux
114 *
115 * additional info for VM internal errors
116 *
117 * const char* filename;
118 * int lineno;
119 *
120 * used by reporting about OOM
121 *
122 * size_t size;
123 */
124 static void report_and_die(int id, const char* message, const char* detail_fmt, va_list detail_args,
125 Thread* thread, address pc, void* siginfo, void* context,
126 const char* filename, int lineno, size_t size) ATTRIBUTE_PRINTF(3, 0);
127
128 static void report_and_die(Thread* thread, unsigned int sig, address pc,
129 void* siginfo, void* context);
130
131 static void report_and_die(Thread* thread,const char* filename, int lineno, const char* message,
132 const char* detail_fmt, va_list detail_args) ATTRIBUTE_PRINTF(5, 0);
133
134 static void report_and_die(Thread* thread, const char* filename, int lineno, size_t size,
135 VMErrorType vm_err_type, const char* detail_fmt,
136 va_list detail_args) ATTRIBUTE_PRINTF(6, 0);
137
138 static void report_and_die(const char* message);
139
140 // reporting OutOfMemoryError
141 static void report_java_out_of_memory(const char* message);
142
143 // returns original flags for signal, if it was resetted, or -1 if
144 // signal was not changed by error reporter
145 static int get_resetted_sigflags(int sig);
146
147 // returns original handler for signal, if it was resetted, or NULL if
148 // signal was not changed by error reporter
149 static address get_resetted_sighandler(int sig);
150
151 // check to see if fatal error reporting is in progress
152 static bool fatal_error_in_progress() { return first_error_tid != -1; }
153
154 static jlong get_first_error_tid() {
155 return first_error_tid;
156 }
157 };
158
159 #endif // SHARE_VM_UTILITIES_VMERROR_HPP
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