rev 11647 : 8161258: Simplify including platform files.
Summary: Include patform files with macros cpu_header() etc. Do various cleanups of macro usages. Remove _64/_32 from adlc generated files and platform .hpp files. Merge stubRoutines_x86*.hpp. Remove empty mutex_<os>* files.
Reviewed-by: dholmes, coleenp, kbarrett

   1 /*
   2  * Copyright (c) 2008, 2016, 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 #include "precompiled.hpp"
  26 #include "classfile/javaClasses.hpp"
  27 #include "code/codeCache.hpp"
  28 #include "compiler/disassembler.hpp"
  29 #include "gc/shared/cardTableModRefBS.hpp"
  30 #include "gc/shared/collectedHeap.hpp"
  31 #include "memory/resourceArea.hpp"
  32 #include "oops/oop.inline.hpp"
  33 #include "runtime/fprofiler.hpp"
  34 #include "runtime/handles.inline.hpp"
  35 #include "runtime/os.hpp"
  36 #include "runtime/stubCodeGenerator.hpp"
  37 #include "runtime/stubRoutines.hpp"
  38 #include CPU_HEADER(depChecker)

















  39 #ifdef SHARK
  40 #include "shark/sharkEntry.hpp"
  41 #endif
  42 
  43 void*       Disassembler::_library               = NULL;
  44 bool        Disassembler::_tried_to_load_library = false;
  45 
  46 // This routine is in the shared library:
  47 Disassembler::decode_func_virtual Disassembler::_decode_instructions_virtual = NULL;
  48 Disassembler::decode_func Disassembler::_decode_instructions = NULL;
  49 
  50 static const char hsdis_library_name[] = "hsdis-" HOTSPOT_LIB_ARCH;
  51 static const char decode_instructions_virtual_name[] = "decode_instructions_virtual";
  52 static const char decode_instructions_name[] = "decode_instructions";
  53 static bool use_new_version = true;
  54 #define COMMENT_COLUMN  40 LP64_ONLY(+8) /*could be an option*/
  55 #define BYTES_COMMENT   ";..."  /* funky byte display comment */
  56 
  57 bool Disassembler::load_library() {
  58   if (_decode_instructions_virtual != NULL || _decode_instructions != NULL) {
  59     // Already succeeded.
  60     return true;
  61   }
  62   if (_tried_to_load_library) {
  63     // Do not try twice.
  64     // To force retry in debugger: assign _tried_to_load_library=0
  65     return false;
  66   }
  67   // Try to load it.
  68   char ebuf[1024];
  69   char buf[JVM_MAXPATHLEN];
  70   os::jvm_path(buf, sizeof(buf));
  71   int jvm_offset = -1;
  72   int lib_offset = -1;
  73 #ifdef STATIC_BUILD
  74   char* p = strrchr(buf, '/');
  75   *p = '\0';
  76   strcat(p, "/lib/");
  77   lib_offset = jvm_offset = strlen(buf);
  78 #else
  79   {
  80     // Match "jvm[^/]*" in jvm_path.
  81     const char* base = buf;
  82     const char* p = strrchr(buf, *os::file_separator());
  83     if (p != NULL) lib_offset = p - base + 1;
  84     p = strstr(p ? p : base, "jvm");
  85     if (p != NULL) jvm_offset = p - base;
  86   }
  87 #endif
  88   // Find the disassembler shared library.
  89   // Search for several paths derived from libjvm, in this order:
  90   // 1. <home>/jre/lib/<arch>/<vm>/libhsdis-<arch>.so  (for compatibility)
  91   // 2. <home>/jre/lib/<arch>/<vm>/hsdis-<arch>.so
  92   // 3. <home>/jre/lib/<arch>/hsdis-<arch>.so
  93   // 4. hsdis-<arch>.so  (using LD_LIBRARY_PATH)
  94   if (jvm_offset >= 0) {
  95     // 1. <home>/jre/lib/<arch>/<vm>/libhsdis-<arch>.so
  96     strcpy(&buf[jvm_offset], hsdis_library_name);
  97     strcat(&buf[jvm_offset], os::dll_file_extension());
  98     _library = os::dll_load(buf, ebuf, sizeof ebuf);
  99     if (_library == NULL && lib_offset >= 0) {
 100       // 2. <home>/jre/lib/<arch>/<vm>/hsdis-<arch>.so
 101       strcpy(&buf[lib_offset], hsdis_library_name);
 102       strcat(&buf[lib_offset], os::dll_file_extension());
 103       _library = os::dll_load(buf, ebuf, sizeof ebuf);
 104     }
 105     if (_library == NULL && lib_offset > 0) {
 106       // 3. <home>/jre/lib/<arch>/hsdis-<arch>.so
 107       buf[lib_offset - 1] = '\0';
 108       const char* p = strrchr(buf, *os::file_separator());
 109       if (p != NULL) {
 110         lib_offset = p - buf + 1;
 111         strcpy(&buf[lib_offset], hsdis_library_name);
 112         strcat(&buf[lib_offset], os::dll_file_extension());
 113         _library = os::dll_load(buf, ebuf, sizeof ebuf);
 114       }
 115     }
 116   }
 117   if (_library == NULL) {
 118     // 4. hsdis-<arch>.so  (using LD_LIBRARY_PATH)
 119     strcpy(&buf[0], hsdis_library_name);
 120     strcat(&buf[0], os::dll_file_extension());
 121     _library = os::dll_load(buf, ebuf, sizeof ebuf);
 122   }
 123   if (_library != NULL) {
 124     _decode_instructions_virtual = CAST_TO_FN_PTR(Disassembler::decode_func_virtual,
 125                                           os::dll_lookup(_library, decode_instructions_virtual_name));
 126   }
 127   if (_decode_instructions_virtual == NULL) {
 128     // could not spot in new version, try old version
 129     _decode_instructions = CAST_TO_FN_PTR(Disassembler::decode_func,
 130                                           os::dll_lookup(_library, decode_instructions_name));
 131     use_new_version = false;
 132   } else {
 133     use_new_version = true;
 134   }
 135   _tried_to_load_library = true;
 136   if (_decode_instructions_virtual == NULL && _decode_instructions == NULL) {
 137     tty->print_cr("Could not load %s; %s; %s", buf,
 138                   ((_library != NULL)
 139                    ? "entry point is missing"
 140                    : (WizardMode || PrintMiscellaneous)
 141                    ? (const char*)ebuf
 142                    : "library not loadable"),
 143                   "PrintAssembly is disabled");
 144     return false;
 145   }
 146 
 147   // Success.
 148   tty->print_cr("Loaded disassembler from %s", buf);
 149   return true;
 150 }
 151 
 152 
 153 class decode_env {
 154  private:
 155   nmethod*      _nm;
 156   CodeBlob*     _code;
 157   CodeStrings   _strings;
 158   outputStream* _output;
 159   address       _start, _end;
 160 
 161   char          _option_buf[512];
 162   char          _print_raw;
 163   bool          _print_pc;
 164   bool          _print_bytes;
 165   address       _cur_insn;
 166   int           _total_ticks;
 167   int           _bytes_per_line; // arch-specific formatting option
 168 
 169   static bool match(const char* event, const char* tag) {
 170     size_t taglen = strlen(tag);
 171     if (strncmp(event, tag, taglen) != 0)
 172       return false;
 173     char delim = event[taglen];
 174     return delim == '\0' || delim == ' ' || delim == '/' || delim == '=';
 175   }
 176 
 177   void collect_options(const char* p) {
 178     if (p == NULL || p[0] == '\0')  return;
 179     size_t opt_so_far = strlen(_option_buf);
 180     if (opt_so_far + 1 + strlen(p) + 1 > sizeof(_option_buf))  return;
 181     char* fillp = &_option_buf[opt_so_far];
 182     if (opt_so_far > 0) *fillp++ = ',';
 183     strcat(fillp, p);
 184     // replace white space by commas:
 185     char* q = fillp;
 186     while ((q = strpbrk(q, " \t\n")) != NULL)
 187       *q++ = ',';
 188     // Note that multiple PrintAssemblyOptions flags accumulate with \n,
 189     // which we want to be changed to a comma...
 190   }
 191 
 192   void print_insn_labels();
 193   void print_insn_bytes(address pc0, address pc);
 194   void print_address(address value);
 195 
 196  public:
 197   decode_env(CodeBlob* code, outputStream* output, CodeStrings c = CodeStrings());
 198 
 199   address decode_instructions(address start, address end);
 200 
 201   void start_insn(address pc) {
 202     _cur_insn = pc;
 203     output()->bol();
 204     print_insn_labels();
 205   }
 206 
 207   void end_insn(address pc) {
 208     address pc0 = cur_insn();
 209     outputStream* st = output();
 210     if (_print_bytes && pc > pc0)
 211       print_insn_bytes(pc0, pc);
 212     if (_nm != NULL) {
 213       _nm->print_code_comment_on(st, COMMENT_COLUMN, pc0, pc);
 214       // this calls reloc_string_for which calls oop::print_value_on
 215     }
 216 
 217     // Output pc bucket ticks if we have any
 218     if (total_ticks() != 0) {
 219       address bucket_pc = FlatProfiler::bucket_start_for(pc);
 220       if (bucket_pc != NULL && bucket_pc > pc0 && bucket_pc <= pc) {
 221         int bucket_count = FlatProfiler::bucket_count_for(pc0);
 222         if (bucket_count != 0) {
 223           st->bol();
 224           st->print_cr("%3.1f%% [%d]", bucket_count*100.0/total_ticks(), bucket_count);
 225         }
 226       }
 227     }
 228     // follow each complete insn by a nice newline
 229     st->cr();
 230   }
 231 
 232   address handle_event(const char* event, address arg);
 233 
 234   outputStream* output() { return _output; }
 235   address cur_insn() { return _cur_insn; }
 236   int total_ticks() { return _total_ticks; }
 237   void set_total_ticks(int n) { _total_ticks = n; }
 238   const char* options() { return _option_buf; }
 239 };
 240 
 241 decode_env::decode_env(CodeBlob* code, outputStream* output, CodeStrings c) {
 242   memset(this, 0, sizeof(*this)); // Beware, this zeroes bits of fields.
 243   _output = output ? output : tty;
 244   _code = code;
 245   if (code != NULL && code->is_nmethod())
 246     _nm = (nmethod*) code;
 247   _strings.copy(c);
 248 
 249   // by default, output pc but not bytes:
 250   _print_pc       = true;
 251   _print_bytes    = false;
 252   _bytes_per_line = Disassembler::pd_instruction_alignment();
 253 
 254   // parse the global option string:
 255   collect_options(Disassembler::pd_cpu_opts());
 256   collect_options(PrintAssemblyOptions);
 257 
 258   if (strstr(options(), "hsdis-")) {
 259     if (strstr(options(), "hsdis-print-raw"))
 260       _print_raw = (strstr(options(), "xml") ? 2 : 1);
 261     if (strstr(options(), "hsdis-print-pc"))
 262       _print_pc = !_print_pc;
 263     if (strstr(options(), "hsdis-print-bytes"))
 264       _print_bytes = !_print_bytes;
 265   }
 266   if (strstr(options(), "help")) {
 267     tty->print_cr("PrintAssemblyOptions help:");
 268     tty->print_cr("  hsdis-print-raw       test plugin by requesting raw output");
 269     tty->print_cr("  hsdis-print-raw-xml   test plugin by requesting raw xml");
 270     tty->print_cr("  hsdis-print-pc        turn off PC printing (on by default)");
 271     tty->print_cr("  hsdis-print-bytes     turn on instruction byte output");
 272     tty->print_cr("combined options: %s", options());
 273   }
 274 }
 275 
 276 address decode_env::handle_event(const char* event, address arg) {
 277   if (match(event, "insn")) {
 278     start_insn(arg);
 279   } else if (match(event, "/insn")) {
 280     end_insn(arg);
 281   } else if (match(event, "addr")) {
 282     if (arg != NULL) {
 283       print_address(arg);
 284       return arg;
 285     }
 286   } else if (match(event, "mach")) {
 287     static char buffer[32] = { 0, };
 288     if (strcmp(buffer, (const char*)arg) != 0 ||
 289         strlen((const char*)arg) > sizeof(buffer) - 1) {
 290       // Only print this when the mach changes
 291       strncpy(buffer, (const char*)arg, sizeof(buffer) - 1);
 292       buffer[sizeof(buffer) - 1] = '\0';
 293       output()->print_cr("[Disassembling for mach='%s']", arg);
 294     }
 295   } else if (match(event, "format bytes-per-line")) {
 296     _bytes_per_line = (int) (intptr_t) arg;
 297   } else {
 298     // ignore unrecognized markup
 299   }
 300   return NULL;
 301 }
 302 
 303 // called by the disassembler to print out jump targets and data addresses
 304 void decode_env::print_address(address adr) {
 305   outputStream* st = _output;
 306 
 307   if (adr == NULL) {
 308     st->print("NULL");
 309     return;
 310   }
 311 
 312   int small_num = (int)(intptr_t)adr;
 313   if ((intptr_t)adr == (intptr_t)small_num
 314       && -1 <= small_num && small_num <= 9) {
 315     st->print("%d", small_num);
 316     return;
 317   }
 318 
 319   if (Universe::is_fully_initialized()) {
 320     if (StubRoutines::contains(adr)) {
 321       StubCodeDesc* desc = StubCodeDesc::desc_for(adr);
 322       if (desc == NULL) {
 323         desc = StubCodeDesc::desc_for(adr + frame::pc_return_offset);
 324       }
 325       if (desc != NULL) {
 326         st->print("Stub::%s", desc->name());
 327         if (desc->begin() != adr) {
 328           st->print(INTX_FORMAT_W(+) " " PTR_FORMAT, adr - desc->begin(), p2i(adr));
 329         } else if (WizardMode) {
 330           st->print(" " PTR_FORMAT, p2i(adr));
 331         }
 332         return;
 333       }
 334       st->print("Stub::<unknown> " PTR_FORMAT, p2i(adr));
 335       return;
 336     }
 337 
 338     BarrierSet* bs = Universe::heap()->barrier_set();
 339     if (bs->is_a(BarrierSet::CardTableModRef) &&
 340         adr == (address)(barrier_set_cast<CardTableModRefBS>(bs)->byte_map_base)) {
 341       st->print("word_map_base");
 342       if (WizardMode) st->print(" " INTPTR_FORMAT, p2i(adr));
 343       return;
 344     }
 345   }
 346 
 347   if (_nm == NULL) {
 348     // Don't do this for native methods, as the function name will be printed in
 349     // nmethod::reloc_string_for().
 350     ResourceMark rm;
 351     const int buflen = 1024;
 352     char* buf = NEW_RESOURCE_ARRAY(char, buflen);
 353     int offset;
 354     if (os::dll_address_to_function_name(adr, buf, buflen, &offset)) {
 355       st->print(PTR_FORMAT " = %s",  p2i(adr), buf);
 356       if (offset != 0) {
 357         st->print("+%d", offset);
 358       }
 359       return;
 360     }
 361   }
 362 
 363   // Fall through to a simple (hexadecimal) numeral.
 364   st->print(PTR_FORMAT, p2i(adr));
 365 }
 366 
 367 void decode_env::print_insn_labels() {
 368   address p = cur_insn();
 369   outputStream* st = output();
 370   CodeBlob* cb = _code;
 371   if (cb != NULL) {
 372     cb->print_block_comment(st, p);
 373   }
 374   _strings.print_block_comment(st, (intptr_t)(p - _start));
 375   if (_print_pc) {
 376     st->print("  " PTR_FORMAT ": ", p2i(p));
 377   }
 378 }
 379 
 380 void decode_env::print_insn_bytes(address pc, address pc_limit) {
 381   outputStream* st = output();
 382   size_t incr = 1;
 383   size_t perline = _bytes_per_line;
 384   if ((size_t) Disassembler::pd_instruction_alignment() >= sizeof(int)
 385       && !((uintptr_t)pc % sizeof(int))
 386       && !((uintptr_t)pc_limit % sizeof(int))) {
 387     incr = sizeof(int);
 388     if (perline % incr)  perline += incr - (perline % incr);
 389   }
 390   while (pc < pc_limit) {
 391     // tab to the desired column:
 392     st->move_to(COMMENT_COLUMN);
 393     address pc0 = pc;
 394     address pc1 = pc + perline;
 395     if (pc1 > pc_limit)  pc1 = pc_limit;
 396     for (; pc < pc1; pc += incr) {
 397       if (pc == pc0) {
 398         st->print(BYTES_COMMENT);
 399       } else if ((uint)(pc - pc0) % sizeof(int) == 0) {
 400         st->print(" ");         // put out a space on word boundaries
 401       }
 402       if (incr == sizeof(int)) {
 403         st->print("%08x", *(int*)pc);
 404       } else {
 405         st->print("%02x", (*pc)&0xFF);
 406       }
 407     }
 408     st->cr();
 409   }
 410 }
 411 
 412 
 413 static void* event_to_env(void* env_pv, const char* event, void* arg) {
 414   decode_env* env = (decode_env*) env_pv;
 415   return env->handle_event(event, (address) arg);
 416 }
 417 
 418 ATTRIBUTE_PRINTF(2, 3)
 419 static int printf_to_env(void* env_pv, const char* format, ...) {
 420   decode_env* env = (decode_env*) env_pv;
 421   outputStream* st = env->output();
 422   size_t flen = strlen(format);
 423   const char* raw = NULL;
 424   if (flen == 0)  return 0;
 425   if (flen == 1 && format[0] == '\n') { st->bol(); return 1; }
 426   if (flen < 2 ||
 427       strchr(format, '%') == NULL) {
 428     raw = format;
 429   } else if (format[0] == '%' && format[1] == '%' &&
 430              strchr(format+2, '%') == NULL) {
 431     // happens a lot on machines with names like %foo
 432     flen--;
 433     raw = format+1;
 434   }
 435   if (raw != NULL) {
 436     st->print_raw(raw, (int) flen);
 437     return (int) flen;
 438   }
 439   va_list ap;
 440   va_start(ap, format);
 441   julong cnt0 = st->count();
 442   st->vprint(format, ap);
 443   julong cnt1 = st->count();
 444   va_end(ap);
 445   return (int)(cnt1 - cnt0);
 446 }
 447 
 448 address decode_env::decode_instructions(address start, address end) {
 449   _start = start; _end = end;
 450 
 451   assert(((((intptr_t)start | (intptr_t)end) % Disassembler::pd_instruction_alignment()) == 0), "misaligned insn addr");
 452 
 453   const int show_bytes = false; // for disassembler debugging
 454 
 455   //_version = Disassembler::pd_cpu_version();
 456 
 457   if (!Disassembler::can_decode()) {
 458     return NULL;
 459   }
 460 
 461   // decode a series of instructions and return the end of the last instruction
 462 
 463   if (_print_raw) {
 464     // Print whatever the library wants to print, w/o fancy callbacks.
 465     // This is mainly for debugging the library itself.
 466     FILE* out = stdout;
 467     FILE* xmlout = (_print_raw > 1 ? out : NULL);
 468     return use_new_version ?
 469       (address)
 470       (*Disassembler::_decode_instructions_virtual)((uintptr_t)start, (uintptr_t)end,
 471                                                     start, end - start,
 472                                                     NULL, (void*) xmlout,
 473                                                     NULL, (void*) out,
 474                                                     options(), 0/*nice new line*/)
 475       :
 476       (address)
 477       (*Disassembler::_decode_instructions)(start, end,
 478                                             NULL, (void*) xmlout,
 479                                             NULL, (void*) out,
 480                                             options());
 481   }
 482 
 483   return use_new_version ?
 484     (address)
 485     (*Disassembler::_decode_instructions_virtual)((uintptr_t)start, (uintptr_t)end,
 486                                                   start, end - start,
 487                                                   &event_to_env,  (void*) this,
 488                                                   &printf_to_env, (void*) this,
 489                                                   options(), 0/*nice new line*/)
 490     :
 491     (address)
 492     (*Disassembler::_decode_instructions)(start, end,
 493                                           &event_to_env,  (void*) this,
 494                                           &printf_to_env, (void*) this,
 495                                           options());
 496 }
 497 
 498 
 499 void Disassembler::decode(CodeBlob* cb, outputStream* st) {
 500   ttyLocker ttyl;
 501   if (!load_library())  return;
 502   if (cb->is_nmethod()) {
 503     decode((nmethod*)cb, st);
 504     return;
 505   }
 506   decode_env env(cb, st);
 507   env.output()->print_cr("----------------------------------------------------------------------");
 508   env.output()->print_cr("%s", cb->name());
 509   env.output()->print_cr(" at  [" PTR_FORMAT ", " PTR_FORMAT "]  " JLONG_FORMAT " bytes", p2i(cb->code_begin()), p2i(cb->code_end()), ((jlong)(cb->code_end() - cb->code_begin())) * sizeof(unsigned char*));
 510   env.decode_instructions(cb->code_begin(), cb->code_end());
 511 }
 512 
 513 void Disassembler::decode(address start, address end, outputStream* st, CodeStrings c) {
 514   ttyLocker ttyl;
 515   if (!load_library())  return;
 516   decode_env env(CodeCache::find_blob_unsafe(start), st, c);
 517   env.decode_instructions(start, end);
 518 }
 519 
 520 void Disassembler::decode(nmethod* nm, outputStream* st) {
 521   ttyLocker ttyl;
 522   if (!load_library())  return;
 523   decode_env env(nm, st);
 524   env.output()->print_cr("----------------------------------------------------------------------");
 525 
 526 #ifdef SHARK
 527   SharkEntry* entry = (SharkEntry *) nm->code_begin();
 528   unsigned char* p   = entry->code_start();
 529   unsigned char* end = entry->code_limit();
 530 #else
 531   unsigned char* p   = nm->code_begin();
 532   unsigned char* end = nm->code_end();
 533 #endif // SHARK
 534 
 535   nm->method()->method_holder()->name()->print_symbol_on(env.output());
 536   env.output()->print(".");
 537   nm->method()->name()->print_symbol_on(env.output());
 538   nm->method()->signature()->print_symbol_on(env.output());
 539 #if INCLUDE_JVMCI
 540   {
 541     char buffer[O_BUFLEN];
 542     char* jvmciName = nm->jvmci_installed_code_name(buffer, O_BUFLEN);
 543     if (jvmciName != NULL) {
 544       env.output()->print(" (%s)", jvmciName);
 545     }
 546   }
 547 #endif
 548   env.output()->print_cr("  [" PTR_FORMAT ", " PTR_FORMAT "]  " JLONG_FORMAT " bytes", p2i(p), p2i(end), ((jlong)(end - p)));
 549 
 550   // If there has been profiling, print the buckets.
 551   if (FlatProfiler::bucket_start_for(p) != NULL) {
 552     unsigned char* p1 = p;
 553     int total_bucket_count = 0;
 554     while (p1 < end) {
 555       unsigned char* p0 = p1;
 556       p1 += pd_instruction_alignment();
 557       address bucket_pc = FlatProfiler::bucket_start_for(p1);
 558       if (bucket_pc != NULL && bucket_pc > p0 && bucket_pc <= p1)
 559         total_bucket_count += FlatProfiler::bucket_count_for(p0);
 560     }
 561     env.set_total_ticks(total_bucket_count);
 562   }
 563 
 564   // Print constant table.
 565   if (nm->consts_size() > 0) {
 566     nm->print_nmethod_labels(env.output(), nm->consts_begin());
 567     int offset = 0;
 568     for (address p = nm->consts_begin(); p < nm->consts_end(); p += 4, offset += 4) {
 569       if ((offset % 8) == 0) {
 570         env.output()->print_cr("  " PTR_FORMAT " (offset: %4d): " PTR32_FORMAT "   " PTR64_FORMAT, p2i(p), offset, *((int32_t*) p), *((int64_t*) p));
 571       } else {
 572         env.output()->print_cr("  " PTR_FORMAT " (offset: %4d): " PTR32_FORMAT,                    p2i(p), offset, *((int32_t*) p));
 573       }
 574     }
 575   }
 576 
 577   env.decode_instructions(p, end);
 578 }
--- EOF ---