hotspot/src/share/vm/compiler/disassembler.cpp
author sspitsyn
Sat, 17 May 2014 01:59:43 -0700
changeset 24460 ec55671cfdc2
parent 24424 2658d7834c6e
child 25468 5331df506290
permissions -rw-r--r--
8043264: hsdis library not picked up correctly on expected paths Summary: Fix file separator issue on Windows Reviewed-by: sla, sspitsyn Contributed-by: krismo@azulsystems.com
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/*
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 * Copyright (c) 2008, 2014, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 *
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 */
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#include "precompiled.hpp"
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#include "classfile/javaClasses.hpp"
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#include "code/codeCache.hpp"
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#include "compiler/disassembler.hpp"
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#include "gc_interface/collectedHeap.hpp"
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#include "memory/cardTableModRefBS.hpp"
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#include "runtime/fprofiler.hpp"
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#include "runtime/handles.inline.hpp"
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#include "runtime/stubCodeGenerator.hpp"
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#include "runtime/stubRoutines.hpp"
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#ifdef TARGET_ARCH_x86
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# include "depChecker_x86.hpp"
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#endif
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#ifdef TARGET_ARCH_sparc
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# include "depChecker_sparc.hpp"
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#endif
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#ifdef TARGET_ARCH_zero
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# include "depChecker_zero.hpp"
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#endif
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#ifdef TARGET_ARCH_arm
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# include "depChecker_arm.hpp"
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#endif
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#ifdef TARGET_ARCH_ppc
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# include "depChecker_ppc.hpp"
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#endif
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#ifdef SHARK
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#include "shark/sharkEntry.hpp"
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#endif
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PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC
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void*       Disassembler::_library               = NULL;
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bool        Disassembler::_tried_to_load_library = false;
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// This routine is in the shared library:
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Disassembler::decode_func_virtual Disassembler::_decode_instructions_virtual = NULL;
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Disassembler::decode_func Disassembler::_decode_instructions = NULL;
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static const char hsdis_library_name[] = "hsdis-"HOTSPOT_LIB_ARCH;
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static const char decode_instructions_virtual_name[] = "decode_instructions_virtual";
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static const char decode_instructions_name[] = "decode_instructions";
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static bool use_new_version = true;
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#define COMMENT_COLUMN  40 LP64_ONLY(+8) /*could be an option*/
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#define BYTES_COMMENT   ";..."  /* funky byte display comment */
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bool Disassembler::load_library() {
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  if (_decode_instructions_virtual != NULL || _decode_instructions != NULL) {
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    // Already succeeded.
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    return true;
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  }
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  if (_tried_to_load_library) {
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    // Do not try twice.
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    // To force retry in debugger: assign _tried_to_load_library=0
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    return false;
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  }
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  // Try to load it.
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  char ebuf[1024];
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  char buf[JVM_MAXPATHLEN];
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  os::jvm_path(buf, sizeof(buf));
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  int jvm_offset = -1;
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  int lib_offset = -1;
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  {
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    // Match "jvm[^/]*" in jvm_path.
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    const char* base = buf;
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    const char* p = strrchr(buf, *os::file_separator());
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    if (p != NULL) lib_offset = p - base + 1;
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    p = strstr(p ? p : base, "jvm");
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    if (p != NULL)  jvm_offset = p - base;
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  }
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  // Find the disassembler shared library.
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  // Search for several paths derived from libjvm, in this order:
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  // 1. <home>/jre/lib/<arch>/<vm>/libhsdis-<arch>.so  (for compatibility)
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  // 2. <home>/jre/lib/<arch>/<vm>/hsdis-<arch>.so
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  // 3. <home>/jre/lib/<arch>/hsdis-<arch>.so
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  // 4. hsdis-<arch>.so  (using LD_LIBRARY_PATH)
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  if (jvm_offset >= 0) {
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    // 1. <home>/jre/lib/<arch>/<vm>/libhsdis-<arch>.so
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    strcpy(&buf[jvm_offset], hsdis_library_name);
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    strcat(&buf[jvm_offset], os::dll_file_extension());
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    _library = os::dll_load(buf, ebuf, sizeof ebuf);
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    if (_library == NULL) {
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      // 2. <home>/jre/lib/<arch>/<vm>/hsdis-<arch>.so
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      strcpy(&buf[lib_offset], hsdis_library_name);
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      strcat(&buf[lib_offset], os::dll_file_extension());
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      _library = os::dll_load(buf, ebuf, sizeof ebuf);
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    }
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    if (_library == NULL) {
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      // 3. <home>/jre/lib/<arch>/hsdis-<arch>.so
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      buf[lib_offset - 1] = '\0';
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      const char* p = strrchr(buf, *os::file_separator());
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      if (p != NULL) {
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        lib_offset = p - buf + 1;
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        strcpy(&buf[lib_offset], hsdis_library_name);
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        strcat(&buf[lib_offset], os::dll_file_extension());
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        _library = os::dll_load(buf, ebuf, sizeof ebuf);
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      }
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    }
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  }
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  if (_library == NULL) {
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    // 4. hsdis-<arch>.so  (using LD_LIBRARY_PATH)
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    strcpy(&buf[0], hsdis_library_name);
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    strcat(&buf[0], os::dll_file_extension());
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    _library = os::dll_load(buf, ebuf, sizeof ebuf);
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  }
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  if (_library != NULL) {
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    _decode_instructions_virtual = CAST_TO_FN_PTR(Disassembler::decode_func_virtual,
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                                          os::dll_lookup(_library, decode_instructions_virtual_name));
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  }
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  if (_decode_instructions_virtual == NULL) {
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    // could not spot in new version, try old version
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    _decode_instructions = CAST_TO_FN_PTR(Disassembler::decode_func,
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                                          os::dll_lookup(_library, decode_instructions_name));
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    use_new_version = false;
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  } else {
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    use_new_version = true;
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  }
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  _tried_to_load_library = true;
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  if (_decode_instructions_virtual == NULL && _decode_instructions == NULL) {
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    tty->print_cr("Could not load %s; %s; %s", buf,
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                  ((_library != NULL)
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                   ? "entry point is missing"
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                   : (WizardMode || PrintMiscellaneous)
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                   ? (const char*)ebuf
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                   : "library not loadable"),
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                  "PrintAssembly is disabled");
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    return false;
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  }
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  // Success.
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  tty->print_cr("Loaded disassembler from %s", buf);
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  return true;
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}
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   157
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   158
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class decode_env {
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 private:
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  nmethod*      _nm;
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  CodeBlob*     _code;
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  CodeStrings   _strings;
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  outputStream* _output;
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  address       _start, _end;
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   166
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  char          _option_buf[512];
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  char          _print_raw;
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  bool          _print_pc;
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  bool          _print_bytes;
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  address       _cur_insn;
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  int           _total_ticks;
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  int           _bytes_per_line; // arch-specific formatting option
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  static bool match(const char* event, const char* tag) {
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    size_t taglen = strlen(tag);
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    if (strncmp(event, tag, taglen) != 0)
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      return false;
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    char delim = event[taglen];
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    return delim == '\0' || delim == ' ' || delim == '/' || delim == '=';
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  }
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   182
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  void collect_options(const char* p) {
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    if (p == NULL || p[0] == '\0')  return;
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    size_t opt_so_far = strlen(_option_buf);
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    if (opt_so_far + 1 + strlen(p) + 1 > sizeof(_option_buf))  return;
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    char* fillp = &_option_buf[opt_so_far];
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    if (opt_so_far > 0) *fillp++ = ',';
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    strcat(fillp, p);
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    // replace white space by commas:
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    char* q = fillp;
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    while ((q = strpbrk(q, " \t\n")) != NULL)
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      *q++ = ',';
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    // Note that multiple PrintAssemblyOptions flags accumulate with \n,
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    // which we want to be changed to a comma...
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  }
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   197
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  void print_insn_labels();
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  void print_insn_bytes(address pc0, address pc);
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  void print_address(address value);
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 public:
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  decode_env(CodeBlob* code, outputStream* output, CodeStrings c = CodeStrings());
347
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   204
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  address decode_instructions(address start, address end);
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   206
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  void start_insn(address pc) {
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    _cur_insn = pc;
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    output()->bol();
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    print_insn_labels();
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   211
  }
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   212
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  void end_insn(address pc) {
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    address pc0 = cur_insn();
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    outputStream* st = output();
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    if (_print_bytes && pc > pc0)
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      print_insn_bytes(pc0, pc);
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    if (_nm != NULL) {
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      _nm->print_code_comment_on(st, COMMENT_COLUMN, pc0, pc);
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      // this calls reloc_string_for which calls oop::print_value_on
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   221
    }
347
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   222
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    // Output pc bucket ticks if we have any
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   224
    if (total_ticks() != 0) {
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      address bucket_pc = FlatProfiler::bucket_start_for(pc);
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      if (bucket_pc != NULL && bucket_pc > pc0 && bucket_pc <= pc) {
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        int bucket_count = FlatProfiler::bucket_count_for(pc0);
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        if (bucket_count != 0) {
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          st->bol();
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          st->print_cr("%3.1f%% [%d]", bucket_count*100.0/total_ticks(), bucket_count);
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        }
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      }
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    }
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    // follow each complete insn by a nice newline
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    st->cr();
347
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  }
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  address handle_event(const char* event, address arg);
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   239
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  outputStream* output() { return _output; }
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  address cur_insn() { return _cur_insn; }
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  int total_ticks() { return _total_ticks; }
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  void set_total_ticks(int n) { _total_ticks = n; }
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  const char* options() { return _option_buf; }
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};
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   246
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decode_env::decode_env(CodeBlob* code, outputStream* output, CodeStrings c) {
347
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  memset(this, 0, sizeof(*this));
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  _output = output ? output : tty;
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  _code = code;
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   251
  if (code != NULL && code->is_nmethod())
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    _nm = (nmethod*) code;
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  _strings.assign(c);
347
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   254
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  // by default, output pc but not bytes:
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  _print_pc       = true;
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   257
  _print_bytes    = false;
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  _bytes_per_line = Disassembler::pd_instruction_alignment();
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   259
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  // parse the global option string:
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  collect_options(Disassembler::pd_cpu_opts());
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  collect_options(PrintAssemblyOptions);
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   263
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   264
  if (strstr(options(), "hsdis-")) {
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   265
    if (strstr(options(), "hsdis-print-raw"))
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   266
      _print_raw = (strstr(options(), "xml") ? 2 : 1);
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   267
    if (strstr(options(), "hsdis-print-pc"))
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   268
      _print_pc = !_print_pc;
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   269
    if (strstr(options(), "hsdis-print-bytes"))
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      _print_bytes = !_print_bytes;
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  }
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  if (strstr(options(), "help")) {
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   273
    tty->print_cr("PrintAssemblyOptions help:");
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    tty->print_cr("  hsdis-print-raw       test plugin by requesting raw output");
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    tty->print_cr("  hsdis-print-raw-xml   test plugin by requesting raw xml");
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    tty->print_cr("  hsdis-print-pc        turn off PC printing (on by default)");
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    tty->print_cr("  hsdis-print-bytes     turn on instruction byte output");
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    tty->print_cr("combined options: %s", options());
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   279
  }
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}
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   281
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address decode_env::handle_event(const char* event, address arg) {
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   283
  if (match(event, "insn")) {
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   284
    start_insn(arg);
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   285
  } else if (match(event, "/insn")) {
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   286
    end_insn(arg);
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   287
  } else if (match(event, "addr")) {
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   288
    if (arg != NULL) {
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   289
      print_address(arg);
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      return arg;
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   291
    }
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   292
  } else if (match(event, "mach")) {
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    static char buffer[32] = { 0, };
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    if (strcmp(buffer, (const char*)arg) != 0 ||
34ddce3361b7 7062856: Disassembler needs to be smarter about finding hsdis after 1.7 launcher changes
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        strlen((const char*)arg) > sizeof(buffer) - 1) {
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   296
      // Only print this when the mach changes
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      strncpy(buffer, (const char*)arg, sizeof(buffer) - 1);
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   298
      output()->print_cr("[Disassembling for mach='%s']", arg);
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   299
    }
347
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   300
  } else if (match(event, "format bytes-per-line")) {
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   301
    _bytes_per_line = (int) (intptr_t) arg;
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   302
  } else {
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   303
    // ignore unrecognized markup
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   304
  }
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  return NULL;
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   306
}
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parents:
diff changeset
   307
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   308
// called by the disassembler to print out jump targets and data addresses
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   309
void decode_env::print_address(address adr) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   310
  outputStream* st = _output;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   311
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   312
  if (adr == NULL) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   313
    st->print("NULL");
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   314
    return;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   315
  }
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   316
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   317
  int small_num = (int)(intptr_t)adr;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   318
  if ((intptr_t)adr == (intptr_t)small_num
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   319
      && -1 <= small_num && small_num <= 9) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   320
    st->print("%d", small_num);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   321
    return;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   322
  }
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   323
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   324
  if (Universe::is_fully_initialized()) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   325
    if (StubRoutines::contains(adr)) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   326
      StubCodeDesc* desc = StubCodeDesc::desc_for(adr);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   327
      if (desc == NULL)
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   328
        desc = StubCodeDesc::desc_for(adr + frame::pc_return_offset);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   329
      if (desc != NULL) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   330
        st->print("Stub::%s", desc->name());
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   331
        if (desc->begin() != adr)
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   332
          st->print("%+d 0x%p",adr - desc->begin(), adr);
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 8921
diff changeset
   333
        else if (WizardMode) st->print(" " PTR_FORMAT, adr);
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   334
        return;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   335
      }
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 8921
diff changeset
   336
      st->print("Stub::<unknown> " PTR_FORMAT, adr);
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   337
      return;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   338
    }
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   339
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   340
    BarrierSet* bs = Universe::heap()->barrier_set();
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   341
    if (bs->kind() == BarrierSet::CardTableModRef &&
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   342
        adr == (address)((CardTableModRefBS*)(bs))->byte_map_base) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   343
      st->print("word_map_base");
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   344
      if (WizardMode) st->print(" " INTPTR_FORMAT, (intptr_t)adr);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   345
      return;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   346
    }
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   348
    oop obj;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   349
    if (_nm != NULL
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   350
        && (obj = _nm->embeddedOop_at(cur_insn())) != NULL
4584
e2a449e8cc6f 6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents: 347
diff changeset
   351
        && (address) obj == adr
e2a449e8cc6f 6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents: 347
diff changeset
   352
        && Universe::heap()->is_in(obj)
e2a449e8cc6f 6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents: 347
diff changeset
   353
        && Universe::heap()->is_in(obj->klass())) {
e2a449e8cc6f 6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents: 347
diff changeset
   354
      julong c = st->count();
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   355
      obj->print_value_on(st);
4584
e2a449e8cc6f 6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents: 347
diff changeset
   356
      if (st->count() == c) {
e2a449e8cc6f 6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents: 347
diff changeset
   357
        // No output.  (Can happen in product builds.)
14488
ab48109f7d1b 8001471: Klass::cast() does nothing
hseigel
parents: 14384
diff changeset
   358
        st->print("(a %s)", obj->klass()->external_name());
4584
e2a449e8cc6f 6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents: 347
diff changeset
   359
      }
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   360
      return;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   361
    }
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   362
  }
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   363
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 8921
diff changeset
   364
  // Fall through to a simple (hexadecimal) numeral.
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 8921
diff changeset
   365
  st->print(PTR_FORMAT, adr);
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   366
}
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   367
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   368
void decode_env::print_insn_labels() {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   369
  address p = cur_insn();
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   370
  outputStream* st = output();
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   371
  CodeBlob* cb = _code;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   372
  if (cb != NULL) {
4584
e2a449e8cc6f 6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents: 347
diff changeset
   373
    cb->print_block_comment(st, p);
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   374
  }
16368
713209c45a82 8008555: Debugging code in compiled method sometimes leaks memory
roland
parents: 14488
diff changeset
   375
  _strings.print_block_comment(st, (intptr_t)(p - _start));
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   376
  if (_print_pc) {
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 8921
diff changeset
   377
    st->print("  " PTR_FORMAT ": ", p);
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   378
  }
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   379
}
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   380
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   381
void decode_env::print_insn_bytes(address pc, address pc_limit) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   382
  outputStream* st = output();
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   383
  size_t incr = 1;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   384
  size_t perline = _bytes_per_line;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   385
  if ((size_t) Disassembler::pd_instruction_alignment() >= sizeof(int)
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   386
      && !((uintptr_t)pc % sizeof(int))
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   387
      && !((uintptr_t)pc_limit % sizeof(int))) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   388
    incr = sizeof(int);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   389
    if (perline % incr)  perline += incr - (perline % incr);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   390
  }
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   391
  while (pc < pc_limit) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   392
    // tab to the desired column:
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   393
    st->move_to(COMMENT_COLUMN);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   394
    address pc0 = pc;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   395
    address pc1 = pc + perline;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   396
    if (pc1 > pc_limit)  pc1 = pc_limit;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   397
    for (; pc < pc1; pc += incr) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   398
      if (pc == pc0)
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   399
        st->print(BYTES_COMMENT);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   400
      else if ((uint)(pc - pc0) % sizeof(int) == 0)
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   401
        st->print(" ");         // put out a space on word boundaries
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   402
      if (incr == sizeof(int))
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   403
            st->print("%08lx", *(int*)pc);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   404
      else  st->print("%02x",   (*pc)&0xFF);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   405
    }
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   406
    st->cr();
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   407
  }
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   408
}
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   409
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   410
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   411
static void* event_to_env(void* env_pv, const char* event, void* arg) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   412
  decode_env* env = (decode_env*) env_pv;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   413
  return env->handle_event(event, (address) arg);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   414
}
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   415
24424
2658d7834c6e 8037816: Fix for 8036122 breaks build with Xcode5/clang
drchase
parents: 22234
diff changeset
   416
ATTRIBUTE_PRINTF(2, 3)
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   417
static int printf_to_env(void* env_pv, const char* format, ...) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   418
  decode_env* env = (decode_env*) env_pv;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   419
  outputStream* st = env->output();
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   420
  size_t flen = strlen(format);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   421
  const char* raw = NULL;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   422
  if (flen == 0)  return 0;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   423
  if (flen == 1 && format[0] == '\n') { st->bol(); return 1; }
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   424
  if (flen < 2 ||
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   425
      strchr(format, '%') == NULL) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   426
    raw = format;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   427
  } else if (format[0] == '%' && format[1] == '%' &&
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   428
             strchr(format+2, '%') == NULL) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   429
    // happens a lot on machines with names like %foo
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   430
    flen--;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   431
    raw = format+1;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   432
  }
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   433
  if (raw != NULL) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   434
    st->print_raw(raw, (int) flen);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   435
    return (int) flen;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   436
  }
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   437
  va_list ap;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   438
  va_start(ap, format);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   439
  julong cnt0 = st->count();
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   440
  st->vprint(format, ap);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   441
  julong cnt1 = st->count();
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   442
  va_end(ap);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   443
  return (int)(cnt1 - cnt0);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   444
}
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   445
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   446
address decode_env::decode_instructions(address start, address end) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   447
  _start = start; _end = end;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   448
6176
4d9030fe341f 6953477: Increase portability and flexibility of building Hotspot
bobv
parents: 5547
diff changeset
   449
  assert(((((intptr_t)start | (intptr_t)end) % Disassembler::pd_instruction_alignment()) == 0), "misaligned insn addr");
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   450
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   451
  const int show_bytes = false; // for disassembler debugging
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   452
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   453
  //_version = Disassembler::pd_cpu_version();
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   454
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   455
  if (!Disassembler::can_decode()) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   456
    return NULL;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   457
  }
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   458
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   459
  // decode a series of instructions and return the end of the last instruction
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   460
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   461
  if (_print_raw) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   462
    // Print whatever the library wants to print, w/o fancy callbacks.
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   463
    // This is mainly for debugging the library itself.
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   464
    FILE* out = stdout;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   465
    FILE* xmlout = (_print_raw > 1 ? out : NULL);
14384
801df8025142 8000489: older builds of hsdis don't work anymore after 6879063
minqi
parents: 13897
diff changeset
   466
    return use_new_version ?
801df8025142 8000489: older builds of hsdis don't work anymore after 6879063
minqi
parents: 13897
diff changeset
   467
      (address)
801df8025142 8000489: older builds of hsdis don't work anymore after 6879063
minqi
parents: 13897
diff changeset
   468
      (*Disassembler::_decode_instructions_virtual)((uintptr_t)start, (uintptr_t)end,
801df8025142 8000489: older builds of hsdis don't work anymore after 6879063
minqi
parents: 13897
diff changeset
   469
                                                    start, end - start,
801df8025142 8000489: older builds of hsdis don't work anymore after 6879063
minqi
parents: 13897
diff changeset
   470
                                                    NULL, (void*) xmlout,
801df8025142 8000489: older builds of hsdis don't work anymore after 6879063
minqi
parents: 13897
diff changeset
   471
                                                    NULL, (void*) out,
801df8025142 8000489: older builds of hsdis don't work anymore after 6879063
minqi
parents: 13897
diff changeset
   472
                                                    options(), 0/*nice new line*/)
801df8025142 8000489: older builds of hsdis don't work anymore after 6879063
minqi
parents: 13897
diff changeset
   473
      :
801df8025142 8000489: older builds of hsdis don't work anymore after 6879063
minqi
parents: 13897
diff changeset
   474
      (address)
801df8025142 8000489: older builds of hsdis don't work anymore after 6879063
minqi
parents: 13897
diff changeset
   475
      (*Disassembler::_decode_instructions)(start, end,
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   476
                                            NULL, (void*) xmlout,
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   477
                                            NULL, (void*) out,
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   478
                                            options());
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   479
  }
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   480
14384
801df8025142 8000489: older builds of hsdis don't work anymore after 6879063
minqi
parents: 13897
diff changeset
   481
  return use_new_version ?
801df8025142 8000489: older builds of hsdis don't work anymore after 6879063
minqi
parents: 13897
diff changeset
   482
    (address)
801df8025142 8000489: older builds of hsdis don't work anymore after 6879063
minqi
parents: 13897
diff changeset
   483
    (*Disassembler::_decode_instructions_virtual)((uintptr_t)start, (uintptr_t)end,
801df8025142 8000489: older builds of hsdis don't work anymore after 6879063
minqi
parents: 13897
diff changeset
   484
                                                  start, end - start,
801df8025142 8000489: older builds of hsdis don't work anymore after 6879063
minqi
parents: 13897
diff changeset
   485
                                                  &event_to_env,  (void*) this,
801df8025142 8000489: older builds of hsdis don't work anymore after 6879063
minqi
parents: 13897
diff changeset
   486
                                                  &printf_to_env, (void*) this,
801df8025142 8000489: older builds of hsdis don't work anymore after 6879063
minqi
parents: 13897
diff changeset
   487
                                                  options(), 0/*nice new line*/)
801df8025142 8000489: older builds of hsdis don't work anymore after 6879063
minqi
parents: 13897
diff changeset
   488
    :
801df8025142 8000489: older builds of hsdis don't work anymore after 6879063
minqi
parents: 13897
diff changeset
   489
    (address)
801df8025142 8000489: older builds of hsdis don't work anymore after 6879063
minqi
parents: 13897
diff changeset
   490
    (*Disassembler::_decode_instructions)(start, end,
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   491
                                          &event_to_env,  (void*) this,
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   492
                                          &printf_to_env, (void*) this,
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   493
                                          options());
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   494
}
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   495
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   496
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   497
void Disassembler::decode(CodeBlob* cb, outputStream* st) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   498
  if (!load_library())  return;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   499
  decode_env env(cb, st);
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 8921
diff changeset
   500
  env.output()->print_cr("Decoding CodeBlob " PTR_FORMAT, cb);
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6187
diff changeset
   501
  env.decode_instructions(cb->code_begin(), cb->code_end());
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   502
}
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   503
16368
713209c45a82 8008555: Debugging code in compiled method sometimes leaks memory
roland
parents: 14488
diff changeset
   504
void Disassembler::decode(address start, address end, outputStream* st, CodeStrings c) {
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   505
  if (!load_library())  return;
13887
89b873bcc55b 7200163: add CodeComments functionality to assember stubs
kvn
parents: 10017
diff changeset
   506
  decode_env env(CodeCache::find_blob_unsafe(start), st, c);
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   507
  env.decode_instructions(start, end);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   508
}
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   509
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   510
void Disassembler::decode(nmethod* nm, outputStream* st) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   511
  if (!load_library())  return;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   512
  decode_env env(nm, st);
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 8921
diff changeset
   513
  env.output()->print_cr("Decoding compiled method " PTR_FORMAT ":", nm);
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   514
  env.output()->print_cr("Code:");
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   515
6187
4fa7845f7c14 6976186: integrate Shark HotSpot changes
twisti
parents: 6176
diff changeset
   516
#ifdef SHARK
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6187
diff changeset
   517
  SharkEntry* entry = (SharkEntry *) nm->code_begin();
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6187
diff changeset
   518
  unsigned char* p   = entry->code_start();
6187
4fa7845f7c14 6976186: integrate Shark HotSpot changes
twisti
parents: 6176
diff changeset
   519
  unsigned char* end = entry->code_limit();
4fa7845f7c14 6976186: integrate Shark HotSpot changes
twisti
parents: 6176
diff changeset
   520
#else
6418
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6187
diff changeset
   521
  unsigned char* p   = nm->code_begin();
6671edbd230e 6978355: renaming for 6961697
twisti
parents: 6187
diff changeset
   522
  unsigned char* end = nm->code_end();
6187
4fa7845f7c14 6976186: integrate Shark HotSpot changes
twisti
parents: 6176
diff changeset
   523
#endif // SHARK
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   524
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   525
  // If there has been profiling, print the buckets.
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   526
  if (FlatProfiler::bucket_start_for(p) != NULL) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   527
    unsigned char* p1 = p;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   528
    int total_bucket_count = 0;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   529
    while (p1 < end) {
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   530
      unsigned char* p0 = p1;
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   531
      p1 += pd_instruction_alignment();
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   532
      address bucket_pc = FlatProfiler::bucket_start_for(p1);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   533
      if (bucket_pc != NULL && bucket_pc > p0 && bucket_pc <= p1)
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   534
        total_bucket_count += FlatProfiler::bucket_count_for(p0);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   535
    }
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   536
    env.set_total_ticks(total_bucket_count);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   537
  }
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   538
7433
b418028612ad 6961690: load oops from constant table on SPARC
twisti
parents: 7397
diff changeset
   539
  // Print constant table.
b418028612ad 6961690: load oops from constant table on SPARC
twisti
parents: 7397
diff changeset
   540
  if (nm->consts_size() > 0) {
b418028612ad 6961690: load oops from constant table on SPARC
twisti
parents: 7397
diff changeset
   541
    nm->print_nmethod_labels(env.output(), nm->consts_begin());
b418028612ad 6961690: load oops from constant table on SPARC
twisti
parents: 7397
diff changeset
   542
    int offset = 0;
b418028612ad 6961690: load oops from constant table on SPARC
twisti
parents: 7397
diff changeset
   543
    for (address p = nm->consts_begin(); p < nm->consts_end(); p += 4, offset += 4) {
b418028612ad 6961690: load oops from constant table on SPARC
twisti
parents: 7397
diff changeset
   544
      if ((offset % 8) == 0) {
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 8921
diff changeset
   545
        env.output()->print_cr("  " PTR_FORMAT " (offset: %4d): " PTR32_FORMAT "   " PTR64_FORMAT, p, offset, *((int32_t*) p), *((int64_t*) p));
7433
b418028612ad 6961690: load oops from constant table on SPARC
twisti
parents: 7397
diff changeset
   546
      } else {
9630
d6419e4395e3 6939861: JVM should handle more conversion operations
never
parents: 8921
diff changeset
   547
        env.output()->print_cr("  " PTR_FORMAT " (offset: %4d): " PTR32_FORMAT,                    p, offset, *((int32_t*) p));
7433
b418028612ad 6961690: load oops from constant table on SPARC
twisti
parents: 7397
diff changeset
   548
      }
b418028612ad 6961690: load oops from constant table on SPARC
twisti
parents: 7397
diff changeset
   549
    }
b418028612ad 6961690: load oops from constant table on SPARC
twisti
parents: 7397
diff changeset
   550
  }
b418028612ad 6961690: load oops from constant table on SPARC
twisti
parents: 7397
diff changeset
   551
347
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   552
  env.decode_instructions(p, end);
df859fcca515 6667042: PrintAssembly option does not work without special plugin
jrose
parents:
diff changeset
   553
}