J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1998-2005 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | #include "util.h" |
| 27 | #include "EventRequestImpl.h" |
| 28 | #include "eventHandler.h" |
| 29 | #include "inStream.h" |
| 30 | #include "outStream.h" |
| 31 | #include "stepControl.h" |
| 32 | |
| 33 | /** |
| 34 | * Take JDWP "modifiers" (which are JDI explicit filters, like |
| 35 | * addCountFilter(), and implicit filters, like the LocationOnly |
| 36 | * filter that goes with breakpoints) and add them as filters |
| 37 | * (eventFilter) to the HandlerNode (eventHandler). |
| 38 | */ |
| 39 | static jdwpError |
| 40 | readAndSetFilters(JNIEnv *env, PacketInputStream *in, HandlerNode *node, |
| 41 | jint filterCount) |
| 42 | { |
| 43 | int i; |
| 44 | jdwpError serror = JDWP_ERROR(NONE); |
| 45 | |
| 46 | for (i = 0; i < filterCount; ++i) { |
| 47 | |
| 48 | jbyte modifier; |
| 49 | |
| 50 | modifier = inStream_readByte(in); |
| 51 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) |
| 52 | break; |
| 53 | |
| 54 | switch (modifier) { |
| 55 | |
| 56 | case JDWP_REQUEST_MODIFIER(Conditional): { |
| 57 | jint exprID; |
| 58 | exprID = inStream_readInt(in); |
| 59 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) |
| 60 | break; |
| 61 | serror = map2jdwpError( |
| 62 | eventFilter_setConditionalFilter(node, i, exprID)); |
| 63 | break; |
| 64 | } |
| 65 | |
| 66 | case JDWP_REQUEST_MODIFIER(Count): { |
| 67 | jint count; |
| 68 | count = inStream_readInt(in); |
| 69 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) |
| 70 | break; |
| 71 | serror = map2jdwpError( |
| 72 | eventFilter_setCountFilter(node, i, count)); |
| 73 | break; |
| 74 | } |
| 75 | |
| 76 | case JDWP_REQUEST_MODIFIER(ThreadOnly): { |
| 77 | jthread thread; |
| 78 | thread = inStream_readThreadRef(env, in); |
| 79 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) |
| 80 | break; |
| 81 | serror = map2jdwpError( |
| 82 | eventFilter_setThreadOnlyFilter(node, i, thread)); |
| 83 | break; |
| 84 | } |
| 85 | |
| 86 | case JDWP_REQUEST_MODIFIER(LocationOnly): { |
| 87 | jbyte tag; |
| 88 | jclass clazz; |
| 89 | jmethodID method; |
| 90 | jlocation location; |
| 91 | tag = inStream_readByte(in); /* not currently used */ |
| 92 | tag = tag; /* To shut up lint */ |
| 93 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) |
| 94 | break; |
| 95 | clazz = inStream_readClassRef(env, in); |
| 96 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) |
| 97 | break; |
| 98 | method = inStream_readMethodID(in); |
| 99 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) |
| 100 | break; |
| 101 | location = inStream_readLocation(in); |
| 102 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) |
| 103 | break; |
| 104 | serror = map2jdwpError( |
| 105 | eventFilter_setLocationOnlyFilter(node, i, clazz, method, location)); |
| 106 | break; |
| 107 | } |
| 108 | |
| 109 | case JDWP_REQUEST_MODIFIER(FieldOnly): { |
| 110 | jclass clazz; |
| 111 | jfieldID field; |
| 112 | clazz = inStream_readClassRef(env, in); |
| 113 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) |
| 114 | break; |
| 115 | field = inStream_readFieldID(in); |
| 116 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) |
| 117 | break; |
| 118 | serror = map2jdwpError( |
| 119 | eventFilter_setFieldOnlyFilter(node, i, clazz, field)); |
| 120 | break; |
| 121 | } |
| 122 | |
| 123 | case JDWP_REQUEST_MODIFIER(ClassOnly): { |
| 124 | jclass clazz; |
| 125 | clazz = inStream_readClassRef(env, in); |
| 126 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) |
| 127 | break; |
| 128 | serror = map2jdwpError( |
| 129 | eventFilter_setClassOnlyFilter(node, i, clazz)); |
| 130 | break; |
| 131 | } |
| 132 | |
| 133 | case JDWP_REQUEST_MODIFIER(ExceptionOnly): { |
| 134 | jclass exception; |
| 135 | jboolean caught; |
| 136 | jboolean uncaught; |
| 137 | exception = inStream_readClassRef(env, in); |
| 138 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) |
| 139 | break; |
| 140 | caught = inStream_readBoolean(in); |
| 141 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) |
| 142 | break; |
| 143 | uncaught = inStream_readBoolean(in); |
| 144 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) |
| 145 | break; |
| 146 | serror = map2jdwpError( |
| 147 | eventFilter_setExceptionOnlyFilter(node, i, |
| 148 | exception, caught, uncaught)); |
| 149 | break; |
| 150 | } |
| 151 | |
| 152 | case JDWP_REQUEST_MODIFIER(InstanceOnly): { |
| 153 | jobject instance; |
| 154 | instance = inStream_readObjectRef(env, in); |
| 155 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) |
| 156 | break; |
| 157 | serror = map2jdwpError( |
| 158 | eventFilter_setInstanceOnlyFilter(node, i, instance)); |
| 159 | break; |
| 160 | } |
| 161 | |
| 162 | case JDWP_REQUEST_MODIFIER(ClassMatch): { |
| 163 | char *pattern; |
| 164 | pattern = inStream_readString(in); |
| 165 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) |
| 166 | break; |
| 167 | serror = map2jdwpError( |
| 168 | eventFilter_setClassMatchFilter(node, i, |
| 169 | pattern)); |
| 170 | break; |
| 171 | } |
| 172 | |
| 173 | case JDWP_REQUEST_MODIFIER(ClassExclude): { |
| 174 | char *pattern; |
| 175 | pattern = inStream_readString(in); |
| 176 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) |
| 177 | break; |
| 178 | serror = map2jdwpError( |
| 179 | eventFilter_setClassExcludeFilter(node, i, pattern)); |
| 180 | break; |
| 181 | } |
| 182 | case JDWP_REQUEST_MODIFIER(Step): { |
| 183 | jthread thread; |
| 184 | jint size; |
| 185 | jint depth; |
| 186 | thread = inStream_readThreadRef(env, in); |
| 187 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) |
| 188 | break; |
| 189 | size = inStream_readInt(in); |
| 190 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) |
| 191 | break; |
| 192 | depth = inStream_readInt(in); |
| 193 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) |
| 194 | break; |
| 195 | serror = map2jdwpError( |
| 196 | eventFilter_setStepFilter(node, i, thread, size, depth)); |
| 197 | break; |
| 198 | } |
| 199 | case JDWP_REQUEST_MODIFIER(SourceNameMatch): { |
| 200 | char *sourceNamePattern; |
| 201 | sourceNamePattern = inStream_readString(in); |
| 202 | if ( (serror = inStream_error(in)) != JDWP_ERROR(NONE) ) { |
| 203 | break; |
| 204 | } |
| 205 | serror = map2jdwpError( |
| 206 | eventFilter_setSourceNameMatchFilter(node, i, sourceNamePattern)); |
| 207 | break; |
| 208 | } |
| 209 | |
| 210 | default: |
| 211 | serror = JDWP_ERROR(ILLEGAL_ARGUMENT); |
| 212 | break; |
| 213 | } |
| 214 | if ( serror != JDWP_ERROR(NONE) ) |
| 215 | break; |
| 216 | } |
| 217 | return serror; |
| 218 | } |
| 219 | |
| 220 | /** |
| 221 | * This is the back-end implementation for enabling |
| 222 | * (what are at the JDI level) EventRequests. |
| 223 | * |
| 224 | * Allocate the event request handler (eventHandler). |
| 225 | * Add any filters (explicit or implicit). |
| 226 | * Install the handler. |
| 227 | * Return the handlerID which is used to map subsequent |
| 228 | * events to the EventRequest that created it. |
| 229 | */ |
| 230 | static jboolean |
| 231 | setCommand(PacketInputStream *in, PacketOutputStream *out) |
| 232 | { |
| 233 | jdwpError serror; |
| 234 | HandlerNode *node; |
| 235 | HandlerID requestID = -1; |
| 236 | jdwpEvent eventType; |
| 237 | jbyte suspendPolicy; |
| 238 | jint filterCount; |
| 239 | EventIndex ei; |
| 240 | |
| 241 | node = NULL; |
| 242 | eventType = inStream_readByte(in); |
| 243 | if (inStream_error(in)) { |
| 244 | return JNI_TRUE; |
| 245 | } |
| 246 | suspendPolicy = inStream_readByte(in); |
| 247 | if (inStream_error(in)) { |
| 248 | return JNI_TRUE; |
| 249 | } |
| 250 | filterCount = inStream_readInt(in); |
| 251 | if (inStream_error(in)) { |
| 252 | return JNI_TRUE; |
| 253 | } |
| 254 | |
| 255 | ei = jdwp2EventIndex(eventType); |
| 256 | if (ei == 0) { |
| 257 | outStream_setError(out, JDWP_ERROR(INVALID_EVENT_TYPE)); |
| 258 | return JNI_TRUE; |
| 259 | } |
| 260 | |
| 261 | if (ei == EI_VM_INIT) { |
| 262 | /* |
| 263 | * VM is already initialized so there's no need to install a handler |
| 264 | * for this event. However we need to allocate a requestID to send in |
| 265 | * the reply to the debugger. |
| 266 | */ |
| 267 | serror = JDWP_ERROR(NONE); |
| 268 | requestID = eventHandler_allocHandlerID(); |
| 269 | } else { |
| 270 | node = eventHandler_alloc(filterCount, ei, suspendPolicy); |
| 271 | if (node == NULL) { |
| 272 | outStream_setError(out, JDWP_ERROR(OUT_OF_MEMORY)); |
| 273 | return JNI_TRUE; |
| 274 | } |
| 275 | if (eventType == JDWP_EVENT(METHOD_EXIT_WITH_RETURN_VALUE)) { |
| 276 | node->needReturnValue = 1; |
| 277 | } else { |
| 278 | node->needReturnValue = 0; |
| 279 | } |
| 280 | serror = readAndSetFilters(getEnv(), in, node, filterCount); |
| 281 | if (serror == JDWP_ERROR(NONE)) { |
| 282 | jvmtiError error; |
| 283 | error = eventHandler_installExternal(node); |
| 284 | serror = map2jdwpError(error); |
| 285 | if (serror == JDWP_ERROR(NONE)) { |
| 286 | requestID = node->handlerID; |
| 287 | } |
| 288 | } |
| 289 | } |
| 290 | |
| 291 | if (serror == JDWP_ERROR(NONE)) { |
| 292 | (void)outStream_writeInt(out, requestID); |
| 293 | } else { |
| 294 | (void)eventHandler_free(node); |
| 295 | outStream_setError(out, serror); |
| 296 | } |
| 297 | |
| 298 | return JNI_TRUE; |
| 299 | } |
| 300 | |
| 301 | /** |
| 302 | * This is the back-end implementation for disabling |
| 303 | * (what are at the JDI level) EventRequests. |
| 304 | */ |
| 305 | static jboolean |
| 306 | clearCommand(PacketInputStream *in, PacketOutputStream *out) |
| 307 | { |
| 308 | jvmtiError error; |
| 309 | jdwpEvent eventType; |
| 310 | HandlerID handlerID; |
| 311 | EventIndex ei; |
| 312 | |
| 313 | eventType = inStream_readByte(in); |
| 314 | if (inStream_error(in)) { |
| 315 | return JNI_TRUE; |
| 316 | } |
| 317 | handlerID = inStream_readInt(in); |
| 318 | if (inStream_error(in)) { |
| 319 | return JNI_TRUE; |
| 320 | } |
| 321 | |
| 322 | ei = jdwp2EventIndex(eventType); |
| 323 | if (ei == 0) { |
| 324 | /* NOTE: Clear command not yet spec'ed to return INVALID_EVENT_TYPE */ |
| 325 | outStream_setError(out, JDWP_ERROR(INVALID_EVENT_TYPE)); |
| 326 | return JNI_TRUE; |
| 327 | } |
| 328 | |
| 329 | error = eventHandler_freeByID(ei, handlerID); |
| 330 | if (error != JVMTI_ERROR_NONE) { |
| 331 | outStream_setError(out, map2jdwpError(error)); |
| 332 | } |
| 333 | |
| 334 | return JNI_TRUE; |
| 335 | } |
| 336 | |
| 337 | static jboolean |
| 338 | clearAllBreakpoints(PacketInputStream *in, PacketOutputStream *out) |
| 339 | { |
| 340 | jvmtiError error; |
| 341 | |
| 342 | error = eventHandler_freeAll(EI_BREAKPOINT); |
| 343 | if (error != JVMTI_ERROR_NONE) { |
| 344 | outStream_setError(out, map2jdwpError(error)); |
| 345 | } |
| 346 | return JNI_TRUE; |
| 347 | } |
| 348 | |
| 349 | void *EventRequest_Cmds[] = { (void *)0x3 |
| 350 | ,(void *)setCommand |
| 351 | ,(void *)clearCommand |
| 352 | ,(void *)clearAllBreakpoints}; |