J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2003-2005 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * |
| 4 | * Redistribution and use in source and binary forms, with or without |
| 5 | * modification, are permitted provided that the following conditions |
| 6 | * are met: |
| 7 | * |
| 8 | * - Redistributions of source code must retain the above copyright |
| 9 | * notice, this list of conditions and the following disclaimer. |
| 10 | * |
| 11 | * - Redistributions in binary form must reproduce the above copyright |
| 12 | * notice, this list of conditions and the following disclaimer in the |
| 13 | * documentation and/or other materials provided with the distribution. |
| 14 | * |
| 15 | * - Neither the name of Sun Microsystems nor the names of its |
| 16 | * contributors may be used to endorse or promote products derived |
| 17 | * from this software without specific prior written permission. |
| 18 | * |
| 19 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS |
| 20 | * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| 21 | * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 22 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR |
| 23 | * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 24 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 25 | * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 26 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF |
| 27 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
| 28 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 29 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 30 | */ |
| 31 | |
| 32 | #include "hprof.h" |
| 33 | |
| 34 | /* The error handling logic. */ |
| 35 | |
| 36 | /* |
| 37 | * Most hprof error processing and error functions are kept here, along with |
| 38 | * termination functions and signal handling (used in debug version only). |
| 39 | * |
| 40 | */ |
| 41 | |
| 42 | #include <signal.h> |
| 43 | |
| 44 | static int p = 1; /* Used with pause=y|n option */ |
| 45 | |
| 46 | /* Private functions */ |
| 47 | |
| 48 | static void |
| 49 | error_message(const char * format, ...) |
| 50 | { |
| 51 | va_list ap; |
| 52 | |
| 53 | va_start(ap, format); |
| 54 | (void)vfprintf(stderr, format, ap); |
| 55 | va_end(ap); |
| 56 | } |
| 57 | |
| 58 | static void |
| 59 | error_abort(void) |
| 60 | { |
| 61 | /* Important to remove existing signal handler */ |
| 62 | (void)signal(SIGABRT, NULL); |
| 63 | error_message("HPROF DUMPING CORE\n"); |
| 64 | abort(); /* Sends SIGABRT signal, usually also caught by libjvm */ |
| 65 | } |
| 66 | |
| 67 | static void |
| 68 | signal_handler(int sig) |
| 69 | { |
| 70 | /* Caught a signal, most likely a SIGABRT */ |
| 71 | error_message("HPROF SIGNAL %d TERMINATED PROCESS\n", sig); |
| 72 | error_abort(); |
| 73 | } |
| 74 | |
| 75 | static void |
| 76 | setup_signal_handler(int sig) |
| 77 | { |
| 78 | /* Only if debug version or debug=y */ |
| 79 | if ( gdata->debug ) { |
| 80 | (void)signal(sig, (void(*)(int))(void*)&signal_handler); |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | static void |
| 85 | terminate_everything(jint exit_code) |
| 86 | { |
| 87 | if ( exit_code > 0 ) { |
| 88 | /* Could be a fatal error or assert error or a sanity error */ |
| 89 | error_message("HPROF TERMINATED PROCESS\n"); |
| 90 | if ( gdata->coredump || gdata->debug ) { |
| 91 | /* Core dump here by request */ |
| 92 | error_abort(); |
| 93 | } |
| 94 | } |
| 95 | /* Terminate the process */ |
| 96 | error_exit_process(exit_code); |
| 97 | } |
| 98 | |
| 99 | /* External functions */ |
| 100 | |
| 101 | void |
| 102 | error_setup(void) |
| 103 | { |
| 104 | setup_signal_handler(SIGABRT); |
| 105 | } |
| 106 | |
| 107 | void |
| 108 | error_do_pause(void) |
| 109 | { |
| 110 | int pid = md_getpid(); |
| 111 | int timeleft = 600; /* 10 minutes max */ |
| 112 | int interval = 10; /* 10 second message check */ |
| 113 | |
| 114 | /*LINTED*/ |
| 115 | error_message("\nHPROF pause for PID %d\n", (int)pid); |
| 116 | while ( p && timeleft > 0 ) { |
| 117 | md_sleep(interval); /* 'assign p=0' to stop pause loop */ |
| 118 | timeleft -= interval; |
| 119 | } |
| 120 | if ( timeleft <= 0 ) { |
| 121 | error_message("\n HPROF pause got tired of waiting and gave up.\n"); |
| 122 | } |
| 123 | } |
| 124 | |
| 125 | void |
| 126 | error_exit_process(int exit_code) |
| 127 | { |
| 128 | exit(exit_code); |
| 129 | } |
| 130 | |
| 131 | static const char * |
| 132 | source_basename(const char *file) |
| 133 | { |
| 134 | const char *p; |
| 135 | |
| 136 | if ( file == NULL ) { |
| 137 | return "UnknownSourceFile"; |
| 138 | } |
| 139 | p = strrchr(file, '/'); |
| 140 | if ( p == NULL ) { |
| 141 | p = strrchr(file, '\\'); |
| 142 | } |
| 143 | if ( p == NULL ) { |
| 144 | p = file; |
| 145 | } else { |
| 146 | p++; /* go past / */ |
| 147 | } |
| 148 | return p; |
| 149 | } |
| 150 | |
| 151 | void |
| 152 | error_assert(const char *condition, const char *file, int line) |
| 153 | { |
| 154 | error_message("ASSERTION FAILURE: %s [%s:%d]\n", condition, |
| 155 | source_basename(file), line); |
| 156 | error_abort(); |
| 157 | } |
| 158 | |
| 159 | void |
| 160 | error_handler(jboolean fatal, jvmtiError error, |
| 161 | const char *message, const char *file, int line) |
| 162 | { |
| 163 | char *error_name; |
| 164 | |
| 165 | if ( message==NULL ) { |
| 166 | message = ""; |
| 167 | } |
| 168 | if ( error != JVMTI_ERROR_NONE ) { |
| 169 | error_name = getErrorName(error); |
| 170 | if ( error_name == NULL ) { |
| 171 | error_name = "?"; |
| 172 | } |
| 173 | error_message("HPROF ERROR: %s (JVMTI Error %s(%d)) [%s:%d]\n", |
| 174 | message, error_name, error, |
| 175 | source_basename(file), line); |
| 176 | } else { |
| 177 | error_message("HPROF ERROR: %s [%s:%d]\n", message, |
| 178 | source_basename(file), line); |
| 179 | } |
| 180 | if ( fatal || gdata->errorexit ) { |
| 181 | /* If it's fatal, or the user wants termination on any error, die */ |
| 182 | terminate_everything(9); |
| 183 | } |
| 184 | } |
| 185 | |
| 186 | void |
| 187 | debug_message(const char * format, ...) |
| 188 | { |
| 189 | va_list ap; |
| 190 | |
| 191 | va_start(ap, format); |
| 192 | (void)vfprintf(stderr, format, ap); |
| 193 | va_end(ap); |
| 194 | } |
| 195 | |
| 196 | void |
| 197 | verbose_message(const char * format, ...) |
| 198 | { |
| 199 | if ( gdata->verbose ) { |
| 200 | va_list ap; |
| 201 | |
| 202 | va_start(ap, format); |
| 203 | (void)vfprintf(stderr, format, ap); |
| 204 | va_end(ap); |
| 205 | } |
| 206 | } |