1 /* 2 * Copyright (c) 2003, 2012, Oracle and/or its affiliates. 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. 8 * 9 * This code is distributed in the hope that it will be useful, but WITHOUT 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 * version 2 for more details (a copy is included in the LICENSE file that 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 /* This file is auto-generated */ 26 #include "JvmOffsetsIndex.h" 27 28 #define DEBUG 29 30 #ifdef DEBUG 31 #define MARK_LINE this->line = __LINE__ 32 #else 33 #define MARK_LINE 34 #endif 35 36 #ifdef _LP64 37 #define STACK_BIAS 0x7ff 38 #define pointer uint64_t 39 #else 40 #define STACK_BIAS 0 41 #define pointer uint32_t 42 #endif 43 44 extern pointer __JvmOffsets; 45 46 extern pointer __1cJCodeCacheF_heap_; 47 extern pointer __1cIUniverseO_collectedHeap_; 48 extern pointer __1cIUniverseL_narrow_oop_; 49 #ifdef _LP64 50 extern pointer UseCompressedOops; 51 #endif 52 53 extern pointer __1cHnmethodG__vtbl_; 54 extern pointer __1cGMethodG__vtbl_; 55 extern pointer __1cKBufferBlobG__vtbl_; 56 57 #define copyin_ptr(ADDR) *(pointer*) copyin((pointer) (ADDR), sizeof(pointer)) 58 #define copyin_uchar(ADDR) *(uchar_t*) copyin((pointer) (ADDR), sizeof(uchar_t)) 59 #define copyin_uint16(ADDR) *(uint16_t*) copyin((pointer) (ADDR), sizeof(uint16_t)) 60 #define copyin_uint32(ADDR) *(uint32_t*) copyin((pointer) (ADDR), sizeof(uint32_t)) 61 #define copyin_int32(ADDR) *(int32_t*) copyin((pointer) (ADDR), sizeof(int32_t)) 62 #define copyin_uint8(ADDR) *(uint8_t*) copyin((pointer) (ADDR), sizeof(uint8_t)) 63 64 #define SAME(x) x 65 #define copyin_offset(JVM_CONST) JVM_CONST = \ 66 copyin_int32(JvmOffsetsPtr + SAME(IDX_)JVM_CONST * sizeof(int32_t)) 67 68 int init_done; 69 70 dtrace:helper:ustack: 71 { 72 MARK_LINE; 73 this->done = 0; 74 /* 75 * TBD: 76 * Here we initialize init_done, otherwise jhelper does not work. 77 * Therefore, copyin_offset() statements work multiple times now. 78 * There is a hope we could avoid it in the future, and so, 79 * this initialization can be removed. 80 */ 81 init_done = 0; 82 this->error = (char *) NULL; 83 this->result = (char *) NULL; 84 this->isMethod = 0; 85 this->codecache = 0; 86 this->klass = (pointer) NULL; 87 this->vtbl = (pointer) NULL; 88 this->suffix = '\0'; 89 } 90 91 dtrace:helper:ustack: 92 { 93 MARK_LINE; 94 /* Initialization of JvmOffsets constants */ 95 JvmOffsetsPtr = (pointer) &``__JvmOffsets; 96 } 97 98 dtrace:helper:ustack: 99 /!init_done && !this->done/ 100 { 101 MARK_LINE; 102 init_done = 1; 103 104 copyin_offset(COMPILER); 105 copyin_offset(OFFSET_CollectedHeap_reserved); 106 copyin_offset(OFFSET_MemRegion_start); 107 copyin_offset(OFFSET_MemRegion_word_size); 108 copyin_offset(SIZE_HeapWord); 109 110 copyin_offset(OFFSET_interpreter_frame_method); 111 copyin_offset(OFFSET_Klass_name); 112 copyin_offset(OFFSET_ConstantPool_pool_holder); 113 114 copyin_offset(OFFSET_HeapBlockHeader_used); 115 copyin_offset(OFFSET_oopDesc_metadata); 116 117 copyin_offset(OFFSET_Symbol_length); 118 copyin_offset(OFFSET_Symbol_body); 119 120 copyin_offset(OFFSET_Method_constMethod); 121 copyin_offset(OFFSET_ConstMethod_constants); 122 copyin_offset(OFFSET_ConstMethod_name_index); 123 copyin_offset(OFFSET_ConstMethod_signature_index); 124 125 copyin_offset(OFFSET_CodeHeap_memory); 126 copyin_offset(OFFSET_CodeHeap_segmap); 127 copyin_offset(OFFSET_CodeHeap_log2_segment_size); 128 129 copyin_offset(OFFSET_VirtualSpace_low); 130 copyin_offset(OFFSET_VirtualSpace_high); 131 132 copyin_offset(OFFSET_CodeBlob_name); 133 134 copyin_offset(OFFSET_nmethod_method); 135 copyin_offset(SIZE_HeapBlockHeader); 136 copyin_offset(SIZE_oopDesc); 137 copyin_offset(SIZE_ConstantPool); 138 139 copyin_offset(OFFSET_NarrowOopStruct_base); 140 copyin_offset(OFFSET_NarrowOopStruct_shift); 141 142 /* 143 * The PC to translate is in arg0. 144 */ 145 this->pc = arg0; 146 147 /* 148 * The methodPtr is in %l2 on SPARC. This can be found at 149 * offset 8 from the frame pointer on 32-bit processes. 150 */ 151 #if defined(__sparc) 152 this->methodPtr = copyin_ptr(arg1 + 2 * sizeof(pointer) + STACK_BIAS); 153 #elif defined(__i386) || defined(__amd64) 154 this->methodPtr = copyin_ptr(arg1 + OFFSET_interpreter_frame_method); 155 #else 156 #error "Don't know architecture" 157 #endif 158 159 this->CodeCache_heap_address = copyin_ptr(&``__1cJCodeCacheF_heap_); 160 161 /* Reading volatile values */ 162 #ifdef _LP64 163 this->Use_Compressed_Oops = copyin_uint8(&``UseCompressedOops); 164 #else 165 this->Use_Compressed_Oops = 0; 166 #endif 167 168 this->Universe_narrow_oop_base = copyin_ptr(&``__1cIUniverseL_narrow_oop_ + 169 OFFSET_NarrowOopStruct_base); 170 this->Universe_narrow_oop_shift = copyin_int32(&``__1cIUniverseL_narrow_oop_ + 171 OFFSET_NarrowOopStruct_shift); 172 173 this->CodeCache_low = copyin_ptr(this->CodeCache_heap_address + 174 OFFSET_CodeHeap_memory + OFFSET_VirtualSpace_low); 175 176 this->CodeCache_high = copyin_ptr(this->CodeCache_heap_address + 177 OFFSET_CodeHeap_memory + OFFSET_VirtualSpace_high); 178 179 this->CodeCache_segmap_low = copyin_ptr(this->CodeCache_heap_address + 180 OFFSET_CodeHeap_segmap + OFFSET_VirtualSpace_low); 181 182 this->CodeCache_segmap_high = copyin_ptr(this->CodeCache_heap_address + 183 OFFSET_CodeHeap_segmap + OFFSET_VirtualSpace_high); 184 185 this->CodeHeap_log2_segment_size = copyin_uint32( 186 this->CodeCache_heap_address + OFFSET_CodeHeap_log2_segment_size); 187 188 this->Method_vtbl = (pointer) &``__1cGMethodG__vtbl_; 189 190 /* 191 * Get Java heap bounds 192 */ 193 this->Universe_collectedHeap = copyin_ptr(&``__1cIUniverseO_collectedHeap_); 194 this->heap_start = copyin_ptr(this->Universe_collectedHeap + 195 OFFSET_CollectedHeap_reserved + 196 OFFSET_MemRegion_start); 197 this->heap_size = SIZE_HeapWord * 198 copyin_ptr(this->Universe_collectedHeap + 199 OFFSET_CollectedHeap_reserved + 200 OFFSET_MemRegion_word_size 201 ); 202 this->heap_end = this->heap_start + this->heap_size; 203 } 204 205 dtrace:helper:ustack: 206 /!this->done && 207 this->CodeCache_low <= this->pc && this->pc < this->CodeCache_high/ 208 { 209 MARK_LINE; 210 this->codecache = 1; 211 212 /* 213 * Find start. 214 */ 215 this->segment = (this->pc - this->CodeCache_low) >> 216 this->CodeHeap_log2_segment_size; 217 this->block = this->CodeCache_segmap_low; 218 this->tag = copyin_uchar(this->block + this->segment); 219 "second"; 220 } 221 222 dtrace:helper:ustack: 223 /!this->done && this->codecache && this->tag > 0/ 224 { 225 MARK_LINE; 226 this->tag = copyin_uchar(this->block + this->segment); 227 this->segment = this->segment - this->tag; 228 } 229 230 dtrace:helper:ustack: 231 /!this->done && this->codecache && this->tag > 0/ 232 { 233 MARK_LINE; 234 this->tag = copyin_uchar(this->block + this->segment); 235 this->segment = this->segment - this->tag; 236 } 237 238 dtrace:helper:ustack: 239 /!this->done && this->codecache && this->tag > 0/ 240 { 241 MARK_LINE; 242 this->tag = copyin_uchar(this->block + this->segment); 243 this->segment = this->segment - this->tag; 244 } 245 246 dtrace:helper:ustack: 247 /!this->done && this->codecache && this->tag > 0/ 248 { 249 MARK_LINE; 250 this->tag = copyin_uchar(this->block + this->segment); 251 this->segment = this->segment - this->tag; 252 } 253 254 dtrace:helper:ustack: 255 /!this->done && this->codecache && this->tag > 0/ 256 { 257 MARK_LINE; 258 this->tag = copyin_uchar(this->block + this->segment); 259 this->segment = this->segment - this->tag; 260 } 261 262 dtrace:helper:ustack: 263 /!this->done && this->codecache && this->tag > 0/ 264 { 265 MARK_LINE; 266 this->error = "<couldn't find start>"; 267 this->done = 1; 268 } 269 270 dtrace:helper:ustack: 271 /!this->done && this->codecache/ 272 { 273 MARK_LINE; 274 this->block = this->CodeCache_low + 275 (this->segment << this->CodeHeap_log2_segment_size); 276 this->used = copyin_uint32(this->block + OFFSET_HeapBlockHeader_used); 277 } 278 279 dtrace:helper:ustack: 280 /!this->done && this->codecache && !this->used/ 281 { 282 MARK_LINE; 283 this->error = "<block not in use>"; 284 this->done = 1; 285 } 286 287 dtrace:helper:ustack: 288 /!this->done && this->codecache/ 289 { 290 MARK_LINE; 291 this->start = this->block + SIZE_HeapBlockHeader; 292 this->vtbl = copyin_ptr(this->start); 293 294 this->nmethod_vtbl = (pointer) &``__1cHnmethodG__vtbl_; 295 this->BufferBlob_vtbl = (pointer) &``__1cKBufferBlobG__vtbl_; 296 } 297 298 dtrace:helper:ustack: 299 /!this->done && this->vtbl == this->nmethod_vtbl/ 300 { 301 MARK_LINE; 302 this->methodPtr = copyin_ptr(this->start + OFFSET_nmethod_method); 303 this->suffix = '*'; 304 this->isMethod = 1; 305 } 306 307 dtrace:helper:ustack: 308 /!this->done && this->vtbl == this->BufferBlob_vtbl/ 309 { 310 MARK_LINE; 311 this->name = copyin_ptr(this->start + OFFSET_CodeBlob_name); 312 } 313 314 315 dtrace:helper:ustack: 316 /!this->done && this->vtbl == this->BufferBlob_vtbl && this->methodPtr != 0/ 317 { 318 MARK_LINE; 319 this->klass = copyin_ptr(this->methodPtr); 320 this->isMethod = this->klass == this->Method_vtbl; 321 this->done = !this->isMethod; 322 } 323 324 dtrace:helper:ustack: 325 /!this->done && !this->isMethod/ 326 { 327 MARK_LINE; 328 this->name = copyin_ptr(this->start + OFFSET_CodeBlob_name); 329 this->result = this->name != 0 ? copyinstr(this->name) : "<CodeBlob>"; 330 this->done = 1; 331 } 332 333 dtrace:helper:ustack: 334 /!this->done && this->isMethod/ 335 { 336 MARK_LINE; 337 this->constMethod = copyin_ptr(this->methodPtr + 338 OFFSET_Method_constMethod); 339 340 this->nameIndex = copyin_uint16(this->constMethod + 341 OFFSET_ConstMethod_name_index); 342 343 this->signatureIndex = copyin_uint16(this->constMethod + 344 OFFSET_ConstMethod_signature_index); 345 346 this->constantPool = copyin_ptr(this->constMethod + 347 OFFSET_ConstMethod_constants); 348 349 this->nameSymbol = copyin_ptr(this->constantPool + 350 this->nameIndex * sizeof (pointer) + SIZE_ConstantPool); 351 352 this->nameSymbolLength = copyin_uint16(this->nameSymbol + 353 OFFSET_Symbol_length); 354 355 this->signatureSymbol = copyin_ptr(this->constantPool + 356 this->signatureIndex * sizeof (pointer) + SIZE_ConstantPool); 357 358 this->signatureSymbolLength = copyin_uint16(this->signatureSymbol + 359 OFFSET_Symbol_length); 360 361 this->klassPtr = copyin_ptr(this->constantPool + 362 OFFSET_ConstantPool_pool_holder); 363 364 this->klassSymbol = copyin_ptr(this->klassPtr + 365 OFFSET_Klass_name); 366 367 this->klassSymbolLength = copyin_uint16(this->klassSymbol + 368 OFFSET_Symbol_length); 369 370 /* 371 * Enough for three strings, plus the '.', plus the trailing '\0'. 372 */ 373 this->result = (char *) alloca(this->klassSymbolLength + 374 this->nameSymbolLength + 375 this->signatureSymbolLength + 2 + 1); 376 377 copyinto(this->klassSymbol + OFFSET_Symbol_body, 378 this->klassSymbolLength, this->result); 379 380 /* 381 * Add the '.' between the class and the name. 382 */ 383 this->result[this->klassSymbolLength] = '.'; 384 385 copyinto(this->nameSymbol + OFFSET_Symbol_body, 386 this->nameSymbolLength, 387 this->result + this->klassSymbolLength + 1); 388 389 copyinto(this->signatureSymbol + OFFSET_Symbol_body, 390 this->signatureSymbolLength, 391 this->result + this->klassSymbolLength + 392 this->nameSymbolLength + 1); 393 394 /* 395 * Now we need to add a trailing '\0' and possibly a tag character. 396 */ 397 this->result[this->klassSymbolLength + 1 + 398 this->nameSymbolLength + 399 this->signatureSymbolLength] = this->suffix; 400 this->result[this->klassSymbolLength + 2 + 401 this->nameSymbolLength + 402 this->signatureSymbolLength] = '\0'; 403 404 this->done = 1; 405 } 406 407 dtrace:helper:ustack: 408 /this->done && this->error == (char *) NULL/ 409 { 410 this->result; 411 } 412 413 dtrace:helper:ustack: 414 /this->done && this->error != (char *) NULL/ 415 { 416 this->error; 417 } 418 419 dtrace:helper:ustack: 420 /!this->done && this->codecache/ 421 { 422 this->done = 1; 423 "error"; 424 } 425 426 427 dtrace:helper:ustack: 428 /!this->done/ 429 { 430 NULL; 431 }