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 }