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 // main error reporting function 97 // 98 // int id; // Solaris/Linux signals: 0 - SIGRTMAX 99 // // Windows exceptions: 0xCxxxxxxx system errors 100 // // 0x8xxxxxxx system warnings 101 // const char* message; 102 // const char* detail_fmt; // Format string for the detailed message 103 // va_list detail_args;// Arguments for the detailed message 104 // Thread* thread; // NULL if it's native thread 105 // 106 // additional info for crashes 107 // 108 // address pc; // faulting PC 109 // void* siginfo; // ExceptionRecord on Windows, 110 // // siginfo_t on Solaris/Linux 111 // void* context; // ContextRecord on Windows, 112 // // ucontext_t on Solaris/Linux 113 // 114 // additional info for VM internal errors 115 // 116 // const char* filename; 117 // int lineno; 118 // 119 // additional info for OOM 120 // 121 // size_t size; 122 static void report_and_die(int id, const char* message, const char* detail_fmt, va_list detail_args, 123 Thread* thread, address pc, void* siginfo, void* context, 124 const char* filename, int lineno, size_t size) ATTRIBUTE_PRINTF(3, 0); 125 126 static void report_and_die(Thread* thread, unsigned int sig, address pc, 127 void* siginfo, void* context); 128 129 static void report_and_die(Thread* thread,const char* filename, int lineno, const char* message, 130 const char* detail_fmt, va_list detail_args) ATTRIBUTE_PRINTF(5, 0); 131 132 static void report_and_die(Thread* thread, const char* filename, int lineno, size_t size, 133 VMErrorType vm_err_type, const char* detail_fmt, 134 va_list detail_args) ATTRIBUTE_PRINTF(6, 0); 135 136 static void report_and_die(const char* message); 137 138 // reporting OutOfMemoryError 139 static void report_java_out_of_memory(const char* message); 140 141 // returns original flags for signal, if it was resetted, or -1 if 142 // signal was not changed by error reporter 143 static int get_resetted_sigflags(int sig); 144 145 // returns original handler for signal, if it was resetted, or NULL if 146 // signal was not changed by error reporter 147 static address get_resetted_sighandler(int sig); 148 149 // check to see if fatal error reporting is in progress 150 static bool fatal_error_in_progress() { return first_error_tid != -1; } 151 152 static jlong get_first_error_tid() { 153 return first_error_tid; 154 } 155 }; 156 157 #endif // SHARE_VM_UTILITIES_VMERROR_HPP |