71 static bool coredump_status;
72
73 // When coredump_status is set to true this will contain the name/path to the core/minidump,
74 // if coredump_status if false, this will (hopefully) contain a useful error explaining why
75 // no core/minidump has been written to disk
76 static char coredump_message[O_BUFLEN];
77
78 // Timeout handling:
79 // Timestamp at which error reporting started; -1 if no error reporting in progress.
80 static volatile jlong _reporting_start_time;
81 // Whether or not error reporting did timeout.
82 static volatile bool _reporting_did_timeout;
83 // Timestamp at which the last error reporting step started; -1 if no error reporting
84 // in progress.
85 static volatile jlong _step_start_time;
86 // Whether or not the last error reporting step did timeout.
87 static volatile bool _step_did_timeout;
88
89 static bool _error_reported;
90
91 public:
92
93 // set signal handlers on Solaris/Linux or the default exception filter
94 // on Windows, to handle recursive crashes.
95 static void reset_signal_handlers();
96
97 // handle -XX:+ShowMessageBoxOnError. buf is used to format the message string
98 static void show_message_box(char* buf, int buflen);
99
100 // generate an error report
101 static void report(outputStream* st, bool verbose);
102
103 // generate a stack trace
104 static void print_stack_trace(outputStream* st, JavaThread* jt,
105 char* buf, int buflen, bool verbose = false);
106
107 // public for use by the internal non-product debugger.
108 NOT_PRODUCT(public:)
109 static void print_native_stack(outputStream* st, frame fr, Thread* t,
110 char* buf, int buf_size);
172
173 // returns original flags for signal, if it was resetted, or -1 if
174 // signal was not changed by error reporter
175 static int get_resetted_sigflags(int sig);
176
177 // returns original handler for signal, if it was resetted, or NULL if
178 // signal was not changed by error reporter
179 static address get_resetted_sighandler(int sig);
180
181 // check to see if fatal error reporting is in progress
182 static bool fatal_error_in_progress() { return first_error_tid != -1; }
183
184 static intptr_t get_first_error_tid() { return first_error_tid; }
185
186 // Called by the WatcherThread to check if error reporting has timed-out.
187 // Returns true if error reporting has not completed within the ErrorLogTimeout limit.
188 static bool check_timeout();
189
190 // Support for avoiding multiple asserts
191 static bool is_error_reported();
192
193 // Test vmassert(), fatal(), guarantee(), etc.
194 NOT_PRODUCT(static void test_error_handler();)
195 NOT_PRODUCT(static void controlled_crash(int how);)
196
197 // returns an address which is guaranteed to generate a SIGSEGV on read,
198 // for test purposes, which is not NULL and contains bits in every word
199 static void* get_segfault_address();
200 };
201 #endif // SHARE_VM_UTILITIES_VMERROR_HPP
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71 static bool coredump_status;
72
73 // When coredump_status is set to true this will contain the name/path to the core/minidump,
74 // if coredump_status if false, this will (hopefully) contain a useful error explaining why
75 // no core/minidump has been written to disk
76 static char coredump_message[O_BUFLEN];
77
78 // Timeout handling:
79 // Timestamp at which error reporting started; -1 if no error reporting in progress.
80 static volatile jlong _reporting_start_time;
81 // Whether or not error reporting did timeout.
82 static volatile bool _reporting_did_timeout;
83 // Timestamp at which the last error reporting step started; -1 if no error reporting
84 // in progress.
85 static volatile jlong _step_start_time;
86 // Whether or not the last error reporting step did timeout.
87 static volatile bool _step_did_timeout;
88
89 static bool _error_reported;
90
91 // Whether fork and exec should call fork/vfork
92 static bool _vfork_mode;
93
94 public:
95
96 // set signal handlers on Solaris/Linux or the default exception filter
97 // on Windows, to handle recursive crashes.
98 static void reset_signal_handlers();
99
100 // handle -XX:+ShowMessageBoxOnError. buf is used to format the message string
101 static void show_message_box(char* buf, int buflen);
102
103 // generate an error report
104 static void report(outputStream* st, bool verbose);
105
106 // generate a stack trace
107 static void print_stack_trace(outputStream* st, JavaThread* jt,
108 char* buf, int buflen, bool verbose = false);
109
110 // public for use by the internal non-product debugger.
111 NOT_PRODUCT(public:)
112 static void print_native_stack(outputStream* st, frame fr, Thread* t,
113 char* buf, int buf_size);
175
176 // returns original flags for signal, if it was resetted, or -1 if
177 // signal was not changed by error reporter
178 static int get_resetted_sigflags(int sig);
179
180 // returns original handler for signal, if it was resetted, or NULL if
181 // signal was not changed by error reporter
182 static address get_resetted_sighandler(int sig);
183
184 // check to see if fatal error reporting is in progress
185 static bool fatal_error_in_progress() { return first_error_tid != -1; }
186
187 static intptr_t get_first_error_tid() { return first_error_tid; }
188
189 // Called by the WatcherThread to check if error reporting has timed-out.
190 // Returns true if error reporting has not completed within the ErrorLogTimeout limit.
191 static bool check_timeout();
192
193 // Support for avoiding multiple asserts
194 static bool is_error_reported();
195
196 static bool is_forkmode_vfork();
197
198 // Test vmassert(), fatal(), guarantee(), etc.
199 NOT_PRODUCT(static void test_error_handler();)
200 NOT_PRODUCT(static void controlled_crash(int how);)
201
202 // returns an address which is guaranteed to generate a SIGSEGV on read,
203 // for test purposes, which is not NULL and contains bits in every word
204 static void* get_segfault_address();
205 };
206 #endif // SHARE_VM_UTILITIES_VMERROR_HPP
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