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_UTILITIES_VMERROR_HPP
26 #define SHARE_UTILITIES_VMERROR_HPP
27
28 #include "utilities/globalDefinitions.hpp"
29
30 class Decoder;
31 class frame;
32 class VM_ReportJavaOutOfMemory;
33
34 class VMError : public AllStatic {
35 friend class VM_ReportJavaOutOfMemory;
36 friend class Decoder;
37 friend class VMStructs;
38
39 static int _id; // Solaris/Linux signals: 0 - SIGRTMAX
40 // Windows exceptions: 0xCxxxxxxx system errors
41 // 0x8xxxxxxx system warnings
42
43 static const char* _message;
44 static char _detail_msg[1024];
45
46 static Thread* _thread; // NULL if it's native thread
47
48 // additional info for crashes
49 static address _pc; // faulting PC
50 static void* _siginfo; // ExceptionRecord on Windows,
51 // siginfo_t on Solaris/Linux
52 static void* _context; // ContextRecord on Windows,
53 // ucontext_t on Solaris/Linux
54
55 // additional info for VM internal errors
56 static const char* _filename;
57 static int _lineno;
58
59 // used by reporting about OOM
60 static size_t _size;
61
62 // used by fatal error handler
63 static int _current_step;
64 static const char* _current_step_info;
65
66 // Thread id of the first error. We must be able to handle native thread,
67 // so use thread id instead of Thread* to identify thread.
68 static volatile intptr_t first_error_tid;
69
70 // Core dump status, false if we have been unable to write a core/minidump for some reason
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
160 const char* detail_fmt, va_list detail_args) ATTRIBUTE_PRINTF(6, 0);
161
162 static void report_and_die(Thread* thread, const char* filename, int lineno, size_t size,
163 VMErrorType vm_err_type, const char* detail_fmt,
164 va_list detail_args) ATTRIBUTE_PRINTF(6, 0);
165
166 static void report_and_die(const char* message);
167
168 // reporting OutOfMemoryError
169 static void report_java_out_of_memory(const char* message);
170
171 // returns original flags for signal, if it was resetted, or -1 if
172 // signal was not changed by error reporter
173 static int get_resetted_sigflags(int sig);
174
175 // returns original handler for signal, if it was resetted, or NULL if
176 // signal was not changed by error reporter
177 static address get_resetted_sighandler(int sig);
178
179 // check to see if fatal error reporting is in progress
180 static bool fatal_error_in_progress() { return first_error_tid != -1; }
181
182 static intptr_t get_first_error_tid() { return first_error_tid; }
183
184 // Called by the WatcherThread to check if error reporting has timed-out.
185 // Returns true if error reporting has not completed within the ErrorLogTimeout limit.
186 static bool check_timeout();
187
188 // Support for avoiding multiple asserts
189 static bool is_error_reported();
190
191 // Test vmassert(), fatal(), guarantee(), etc.
192 NOT_PRODUCT(static void test_error_handler();)
193 NOT_PRODUCT(static void controlled_crash(int how);)
194
195 // returns an address which is guaranteed to generate a SIGSEGV on read,
196 // for test purposes, which is not NULL and contains bits in every word
197 static void* get_segfault_address();
198 };
199 #endif // SHARE_UTILITIES_VMERROR_HPP
|
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_UTILITIES_VMERROR_HPP
26 #define SHARE_UTILITIES_VMERROR_HPP
27
28 #include "utilities/globalDefinitions.hpp"
29
30 class Decoder;
31 class frame;
32 class VM_ReportJavaOutOfMemory;
33
34 class VMError : public AllStatic {
35 friend class VMStructs;
36
37 static int _id; // Solaris/Linux signals: 0 - SIGRTMAX
38 // Windows exceptions: 0xCxxxxxxx system errors
39 // 0x8xxxxxxx system warnings
40
41 static const char* _message;
42 static char _detail_msg[1024];
43
44 static Thread* _thread; // NULL if it's native thread
45
46 // additional info for crashes
47 static address _pc; // faulting PC
48 static void* _siginfo; // ExceptionRecord on Windows,
49 // siginfo_t on Solaris/Linux
50 static void* _context; // ContextRecord on Windows,
51 // ucontext_t on Solaris/Linux
52
53 // additional info for VM internal errors
54 static const char* _filename;
55 static int _lineno;
56
57 // used by reporting about OOM
58 static size_t _size;
59
60 // used by fatal error handler
61 static int _current_step;
62 static const char* _current_step_info;
63
64 // Thread id of the first error. We must be able to handle native thread,
65 // so use thread id instead of Thread* to identify thread.
66 static volatile intptr_t _first_error_tid;
67
68 // Core dump status, false if we have been unable to write a core/minidump for some reason
69 static bool coredump_status;
70
71 // When coredump_status is set to true this will contain the name/path to the core/minidump,
72 // if coredump_status if false, this will (hopefully) contain a useful error explaining why
73 // no core/minidump has been written to disk
74 static char coredump_message[O_BUFLEN];
75
76 // Timeout handling:
77 // Timestamp at which error reporting started; -1 if no error reporting in progress.
78 static volatile jlong _reporting_start_time;
79 // Whether or not error reporting did timeout.
80 static volatile bool _reporting_did_timeout;
81 // Timestamp at which the last error reporting step started; -1 if no error reporting
82 // in progress.
83 static volatile jlong _step_start_time;
84 // Whether or not the last error reporting step did timeout.
85 static volatile bool _step_did_timeout;
86
158 const char* detail_fmt, va_list detail_args) ATTRIBUTE_PRINTF(6, 0);
159
160 static void report_and_die(Thread* thread, const char* filename, int lineno, size_t size,
161 VMErrorType vm_err_type, const char* detail_fmt,
162 va_list detail_args) ATTRIBUTE_PRINTF(6, 0);
163
164 static void report_and_die(const char* message);
165
166 // reporting OutOfMemoryError
167 static void report_java_out_of_memory(const char* message);
168
169 // returns original flags for signal, if it was resetted, or -1 if
170 // signal was not changed by error reporter
171 static int get_resetted_sigflags(int sig);
172
173 // returns original handler for signal, if it was resetted, or NULL if
174 // signal was not changed by error reporter
175 static address get_resetted_sighandler(int sig);
176
177 // check to see if fatal error reporting is in progress
178 static bool fatal_error_in_progress() { return _first_error_tid != -1; }
179
180 static intptr_t get_first_error_tid() { return _first_error_tid; }
181
182 // Called by the WatcherThread to check if error reporting has timed-out.
183 // Returns true if error reporting has not completed within the ErrorLogTimeout limit.
184 static bool check_timeout();
185
186 // Support for avoiding multiple asserts
187 static bool is_error_reported();
188
189 // Test vmassert(), fatal(), guarantee(), etc.
190 NOT_PRODUCT(static void test_error_handler();)
191 NOT_PRODUCT(static void controlled_crash(int how);)
192
193 // returns an address which is guaranteed to generate a SIGSEGV on read,
194 // for test purposes, which is not NULL and contains bits in every word
195 static void* get_segfault_address();
196 };
197 #endif // SHARE_UTILITIES_VMERROR_HPP
|