src/hotspot/share/code/relocInfo.cpp
author naoto
Tue, 09 Jul 2019 08:05:38 -0700
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8227127: Era designator not displayed correctly using the COMPAT provider Reviewed-by: rriggs
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/*
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 * Copyright (c) 1997, 2019, 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 "code/codeCache.hpp"
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#include "code/compiledIC.hpp"
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#include "code/nmethod.hpp"
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#include "code/relocInfo.hpp"
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#include "memory/resourceArea.hpp"
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#include "memory/universe.hpp"
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#include "oops/compressedOops.inline.hpp"
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#include "runtime/flags/flagSetting.hpp"
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#include "runtime/stubCodeGenerator.hpp"
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#include "utilities/copy.hpp"
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#include "oops/oop.inline.hpp"
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const RelocationHolder RelocationHolder::none; // its type is relocInfo::none
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// Implementation of relocInfo
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#ifdef ASSERT
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relocInfo::relocInfo(relocType t, int off, int f) {
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  assert(t != data_prefix_tag, "cannot build a prefix this way");
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  assert((t & type_mask) == t, "wrong type");
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  assert((f & format_mask) == f, "wrong format");
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  assert(off >= 0 && off < offset_limit(), "offset out off bounds");
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  assert((off & (offset_unit-1)) == 0, "misaligned offset");
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  (*this) = relocInfo(t, RAW_BITS, off, f);
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}
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#endif
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void relocInfo::initialize(CodeSection* dest, Relocation* reloc) {
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  relocInfo* data = this+1;  // here's where the data might go
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  dest->set_locs_end(data);  // sync end: the next call may read dest.locs_end
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  reloc->pack_data_to(dest); // maybe write data into locs, advancing locs_end
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  relocInfo* data_limit = dest->locs_end();
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  if (data_limit > data) {
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    relocInfo suffix = (*this);
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    data_limit = this->finish_prefix((short*) data_limit);
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    // Finish up with the suffix.  (Hack note: pack_data_to might edit this.)
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    *data_limit = suffix;
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    dest->set_locs_end(data_limit+1);
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  }
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}
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relocInfo* relocInfo::finish_prefix(short* prefix_limit) {
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  assert(sizeof(relocInfo) == sizeof(short), "change this code");
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  short* p = (short*)(this+1);
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  assert(prefix_limit >= p, "must be a valid span of data");
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  int plen = prefix_limit - p;
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  if (plen == 0) {
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    debug_only(_value = 0xFFFF);
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    return this;                         // no data: remove self completely
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  }
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  if (plen == 1 && fits_into_immediate(p[0])) {
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    (*this) = immediate_relocInfo(p[0]); // move data inside self
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    return this+1;
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  }
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  // cannot compact, so just update the count and return the limit pointer
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  (*this) = prefix_relocInfo(plen);   // write new datalen
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  assert(data() + datalen() == prefix_limit, "pointers must line up");
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  return (relocInfo*)prefix_limit;
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}
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void relocInfo::set_type(relocType t) {
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  int old_offset = addr_offset();
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  int old_format = format();
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  (*this) = relocInfo(t, old_offset, old_format);
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  assert(type()==(int)t, "sanity check");
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  assert(addr_offset()==old_offset, "sanity check");
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  assert(format()==old_format, "sanity check");
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}
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void relocInfo::change_reloc_info_for_address(RelocIterator *itr, address pc, relocType old_type, relocType new_type) {
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  bool found = false;
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  while (itr->next() && !found) {
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    if (itr->addr() == pc) {
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      assert(itr->type()==old_type, "wrong relocInfo type found");
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      itr->current()->set_type(new_type);
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      found=true;
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    }
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  }
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  assert(found, "no relocInfo found for pc");
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}
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// ----------------------------------------------------------------------------------------------------
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// Implementation of RelocIterator
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void RelocIterator::initialize(CompiledMethod* nm, address begin, address limit) {
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  initialize_misc();
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  if (nm == NULL && begin != NULL) {
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    // allow nmethod to be deduced from beginning address
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    CodeBlob* cb = CodeCache::find_blob(begin);
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    nm = (cb != NULL) ? cb->as_compiled_method_or_null() : NULL;
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  }
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  guarantee(nm != NULL, "must be able to deduce nmethod from other arguments");
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  _code    = nm;
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  _current = nm->relocation_begin() - 1;
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  _end     = nm->relocation_end();
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  _addr    = nm->content_begin();
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  // Initialize code sections.
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  _section_start[CodeBuffer::SECT_CONSTS] = nm->consts_begin();
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  _section_start[CodeBuffer::SECT_INSTS ] = nm->insts_begin() ;
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  _section_start[CodeBuffer::SECT_STUBS ] = nm->stub_begin()  ;
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  _section_end  [CodeBuffer::SECT_CONSTS] = nm->consts_end()  ;
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  _section_end  [CodeBuffer::SECT_INSTS ] = nm->insts_end()   ;
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  _section_end  [CodeBuffer::SECT_STUBS ] = nm->stub_end()    ;
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  assert(!has_current(), "just checking");
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  assert(begin == NULL || begin >= nm->code_begin(), "in bounds");
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  assert(limit == NULL || limit <= nm->code_end(),   "in bounds");
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  set_limits(begin, limit);
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}
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RelocIterator::RelocIterator(CodeSection* cs, address begin, address limit) {
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  initialize_misc();
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  _current = cs->locs_start()-1;
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  _end     = cs->locs_end();
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  _addr    = cs->start();
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  _code    = NULL; // Not cb->blob();
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  CodeBuffer* cb = cs->outer();
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  assert((int) SECT_LIMIT == CodeBuffer::SECT_LIMIT, "my copy must be equal");
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  for (int n = (int) CodeBuffer::SECT_FIRST; n < (int) CodeBuffer::SECT_LIMIT; n++) {
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    CodeSection* cs = cb->code_section(n);
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    _section_start[n] = cs->start();
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    _section_end  [n] = cs->end();
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  }
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  assert(!has_current(), "just checking");
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  assert(begin == NULL || begin >= cs->start(), "in bounds");
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  assert(limit == NULL || limit <= cs->end(),   "in bounds");
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  set_limits(begin, limit);
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}
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bool RelocIterator::addr_in_const() const {
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  const int n = CodeBuffer::SECT_CONSTS;
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  return section_start(n) <= addr() && addr() < section_end(n);
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}
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void RelocIterator::set_limits(address begin, address limit) {
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  _limit = limit;
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  // the limit affects this next stuff:
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  if (begin != NULL) {
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    relocInfo* backup;
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    address    backup_addr;
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    while (true) {
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      backup      = _current;
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      backup_addr = _addr;
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      if (!next() || addr() >= begin) break;
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    }
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    // At this point, either we are at the first matching record,
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    // or else there is no such record, and !has_current().
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    // In either case, revert to the immediatly preceding state.
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    _current = backup;
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    _addr    = backup_addr;
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    set_has_current(false);
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  }
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}
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// All the strange bit-encodings are in here.
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// The idea is to encode relocation data which are small integers
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// very efficiently (a single extra halfword).  Larger chunks of
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// relocation data need a halfword header to hold their size.
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void RelocIterator::advance_over_prefix() {
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  if (_current->is_datalen()) {
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    _data    = (short*) _current->data();
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    _datalen =          _current->datalen();
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    _current += _datalen + 1;   // skip the embedded data & header
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  } else {
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    _databuf = _current->immediate();
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    _data = &_databuf;
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    _datalen = 1;
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    _current++;                 // skip the header
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  }
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  // The client will see the following relocInfo, whatever that is.
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  // It is the reloc to which the preceding data applies.
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}
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void RelocIterator::initialize_misc() {
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  set_has_current(false);
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  for (int i = (int) CodeBuffer::SECT_FIRST; i < (int) CodeBuffer::SECT_LIMIT; i++) {
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    _section_start[i] = NULL;  // these will be lazily computed, if needed
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    _section_end  [i] = NULL;
1
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  }
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}
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Relocation* RelocIterator::reloc() {
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  // (take the "switch" out-of-line)
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  relocInfo::relocType t = type();
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  if (false) {}
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  #define EACH_TYPE(name)                             \
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  else if (t == relocInfo::name##_type) {             \
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    return name##_reloc();                            \
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  }
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  APPLY_TO_RELOCATIONS(EACH_TYPE);
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  #undef EACH_TYPE
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  assert(t == relocInfo::none, "must be padding");
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  return new(_rh) Relocation();
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}
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//////// Methods for flyweight Relocation types
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RelocationHolder RelocationHolder::plus(int offset) const {
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  if (offset != 0) {
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    switch (type()) {
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    case relocInfo::none:
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      break;
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    case relocInfo::oop_type:
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      {
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        oop_Relocation* r = (oop_Relocation*)reloc();
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        return oop_Relocation::spec(r->oop_index(), r->offset() + offset);
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      }
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    case relocInfo::metadata_type:
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      {
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        metadata_Relocation* r = (metadata_Relocation*)reloc();
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        return metadata_Relocation::spec(r->metadata_index(), r->offset() + offset);
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      }
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    default:
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      ShouldNotReachHere();
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    }
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  }
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  return (*this);
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}
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void Relocation::guarantee_size() {
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  guarantee(false, "Make _relocbuf bigger!");
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}
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    // some relocations can compute their own values
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address Relocation::value() {
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  ShouldNotReachHere();
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  return NULL;
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}
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void Relocation::set_value(address x) {
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  ShouldNotReachHere();
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}
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void Relocation::const_set_data_value(address x) {
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#ifdef _LP64
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  if (format() == relocInfo::narrow_oop_in_const) {
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    *(narrowOop*)addr() = CompressedOops::encode((oop) x);
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  } else {
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#endif
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    *(address*)addr() = x;
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#ifdef _LP64
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  }
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#endif
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}
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void Relocation::const_verify_data_value(address x) {
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#ifdef _LP64
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  if (format() == relocInfo::narrow_oop_in_const) {
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    guarantee(*(narrowOop*)addr() == CompressedOops::encode((oop) x), "must agree");
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  } else {
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#endif
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    guarantee(*(address*)addr() == x, "must agree");
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#ifdef _LP64
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  }
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#endif
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}
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1
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RelocationHolder Relocation::spec_simple(relocInfo::relocType rtype) {
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  if (rtype == relocInfo::none)  return RelocationHolder::none;
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  relocInfo ri = relocInfo(rtype, 0);
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  RelocIterator itr;
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  itr.set_current(ri);
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  itr.reloc();
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  return itr._rh;
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}
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address Relocation::old_addr_for(address newa,
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                                 const CodeBuffer* src, CodeBuffer* dest) {
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  int sect = dest->section_index_of(newa);
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  guarantee(sect != CodeBuffer::SECT_NONE, "lost track of this address");
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  address ostart = src->code_section(sect)->start();
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  address nstart = dest->code_section(sect)->start();
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  return ostart + (newa - nstart);
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}
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address Relocation::new_addr_for(address olda,
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                                 const CodeBuffer* src, CodeBuffer* dest) {
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  debug_only(const CodeBuffer* src0 = src);
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  int sect = CodeBuffer::SECT_NONE;
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  // Look for olda in the source buffer, and all previous incarnations
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  // if the source buffer has been expanded.
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  for (; src != NULL; src = src->before_expand()) {
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   329
    sect = src->section_index_of(olda);
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    if (sect != CodeBuffer::SECT_NONE)  break;
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  }
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  guarantee(sect != CodeBuffer::SECT_NONE, "lost track of this address");
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  address ostart = src->code_section(sect)->start();
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  address nstart = dest->code_section(sect)->start();
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  return nstart + (olda - ostart);
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}
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void Relocation::normalize_address(address& addr, const CodeSection* dest, bool allow_other_sections) {
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  address addr0 = addr;
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  if (addr0 == NULL || dest->allocates2(addr0))  return;
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  CodeBuffer* cb = dest->outer();
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  addr = new_addr_for(addr0, cb, cb);
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  assert(allow_other_sections || dest->contains2(addr),
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         "addr must be in required section");
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}
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void CallRelocation::set_destination(address x) {
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  pd_set_call_destination(x);
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}
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void CallRelocation::fix_relocation_after_move(const CodeBuffer* src, CodeBuffer* dest) {
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  // Usually a self-relative reference to an external routine.
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  // On some platforms, the reference is absolute (not self-relative).
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  // The enhanced use of pd_call_destination sorts this all out.
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   356
  address orig_addr = old_addr_for(addr(), src, dest);
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  address callee    = pd_call_destination(orig_addr);
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   358
  // Reassert the callee address, this time in the new copy of the code.
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  pd_set_call_destination(callee);
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}
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//// pack/unpack methods
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void oop_Relocation::pack_data_to(CodeSection* dest) {
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  short* p = (short*) dest->locs_end();
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  p = pack_2_ints_to(p, _oop_index, _offset);
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diff changeset
   368
  dest->set_locs_end((relocInfo*) p);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   369
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   370
489c9b5090e2 Initial load
duke
parents:
diff changeset
   371
489c9b5090e2 Initial load
duke
parents:
diff changeset
   372
void oop_Relocation::unpack_data() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   373
  unpack_2_ints(_oop_index, _offset);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   374
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   375
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   376
void metadata_Relocation::pack_data_to(CodeSection* dest) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   377
  short* p = (short*) dest->locs_end();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   378
  p = pack_2_ints_to(p, _metadata_index, _offset);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   379
  dest->set_locs_end((relocInfo*) p);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   380
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   381
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   382
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   383
void metadata_Relocation::unpack_data() {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   384
  unpack_2_ints(_metadata_index, _offset);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   385
}
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   386
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   387
489c9b5090e2 Initial load
duke
parents:
diff changeset
   388
void virtual_call_Relocation::pack_data_to(CodeSection* dest) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   389
  short*  p     = (short*) dest->locs_end();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   390
  address point =          dest->locs_point();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   391
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   392
  normalize_address(_cached_value, dest);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   393
  jint x0 = scaled_offset_null_special(_cached_value, point);
35086
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   394
  p = pack_2_ints_to(p, x0, _method_index);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   395
  dest->set_locs_end((relocInfo*) p);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   396
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   397
489c9b5090e2 Initial load
duke
parents:
diff changeset
   398
489c9b5090e2 Initial load
duke
parents:
diff changeset
   399
void virtual_call_Relocation::unpack_data() {
35086
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   400
  jint x0 = 0;
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   401
  unpack_2_ints(x0, _method_index);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   402
  address point = addr();
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   403
  _cached_value = x0==0? NULL: address_from_scaled_offset(x0, point);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   404
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   405
42064
a530dbabe64f 8167184: [s390] Extend relocations for pc-relative instructions.
goetz
parents: 42044
diff changeset
   406
void runtime_call_w_cp_Relocation::pack_data_to(CodeSection * dest) {
a530dbabe64f 8167184: [s390] Extend relocations for pc-relative instructions.
goetz
parents: 42044
diff changeset
   407
  short* p = pack_1_int_to((short *)dest->locs_end(), (jint)(_offset >> 2));
a530dbabe64f 8167184: [s390] Extend relocations for pc-relative instructions.
goetz
parents: 42044
diff changeset
   408
  dest->set_locs_end((relocInfo*) p);
a530dbabe64f 8167184: [s390] Extend relocations for pc-relative instructions.
goetz
parents: 42044
diff changeset
   409
}
a530dbabe64f 8167184: [s390] Extend relocations for pc-relative instructions.
goetz
parents: 42044
diff changeset
   410
a530dbabe64f 8167184: [s390] Extend relocations for pc-relative instructions.
goetz
parents: 42044
diff changeset
   411
void runtime_call_w_cp_Relocation::unpack_data() {
a530dbabe64f 8167184: [s390] Extend relocations for pc-relative instructions.
goetz
parents: 42044
diff changeset
   412
  _offset = unpack_1_int() << 2;
a530dbabe64f 8167184: [s390] Extend relocations for pc-relative instructions.
goetz
parents: 42044
diff changeset
   413
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   414
489c9b5090e2 Initial load
duke
parents:
diff changeset
   415
void static_stub_Relocation::pack_data_to(CodeSection* dest) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   416
  short* p = (short*) dest->locs_end();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   417
  CodeSection* insts = dest->outer()->insts();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   418
  normalize_address(_static_call, insts);
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42064
diff changeset
   419
  jint is_aot = _is_aot ? 1 : 0;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42064
diff changeset
   420
  p = pack_2_ints_to(p, scaled_offset(_static_call, insts->start()), is_aot);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   421
  dest->set_locs_end((relocInfo*) p);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   422
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   423
489c9b5090e2 Initial load
duke
parents:
diff changeset
   424
void static_stub_Relocation::unpack_data() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   425
  address base = binding()->section_start(CodeBuffer::SECT_INSTS);
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42064
diff changeset
   426
  jint offset;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42064
diff changeset
   427
  jint is_aot;
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42064
diff changeset
   428
  unpack_2_ints(offset, is_aot);
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 24952
diff changeset
   429
  _static_call = address_from_scaled_offset(offset, base);
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42064
diff changeset
   430
  _is_aot = (is_aot == 1);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   431
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   432
22813
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   433
void trampoline_stub_Relocation::pack_data_to(CodeSection* dest ) {
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   434
  short* p = (short*) dest->locs_end();
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   435
  CodeSection* insts = dest->outer()->insts();
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   436
  normalize_address(_owner, insts);
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   437
  p = pack_1_int_to(p, scaled_offset(_owner, insts->start()));
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   438
  dest->set_locs_end((relocInfo*) p);
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   439
}
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   440
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   441
void trampoline_stub_Relocation::unpack_data() {
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   442
  address base = binding()->section_start(CodeBuffer::SECT_INSTS);
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   443
  _owner = address_from_scaled_offset(unpack_1_int(), base);
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   444
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   445
489c9b5090e2 Initial load
duke
parents:
diff changeset
   446
void external_word_Relocation::pack_data_to(CodeSection* dest) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   447
  short* p = (short*) dest->locs_end();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   448
#ifndef _LP64
36301
cb578d8c6cba 8149741: Don't refer to stub entry points by index in external_word relocations
vlivanov
parents: 35086
diff changeset
   449
  p = pack_1_int_to(p, (int32_t) (intptr_t)_target);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   450
#else
36301
cb578d8c6cba 8149741: Don't refer to stub entry points by index in external_word relocations
vlivanov
parents: 35086
diff changeset
   451
  jlong t = (jlong) _target;
cb578d8c6cba 8149741: Don't refer to stub entry points by index in external_word relocations
vlivanov
parents: 35086
diff changeset
   452
  int32_t lo = low(t);
cb578d8c6cba 8149741: Don't refer to stub entry points by index in external_word relocations
vlivanov
parents: 35086
diff changeset
   453
  int32_t hi = high(t);
cb578d8c6cba 8149741: Don't refer to stub entry points by index in external_word relocations
vlivanov
parents: 35086
diff changeset
   454
  p = pack_2_ints_to(p, lo, hi);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   455
#endif /* _LP64 */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   456
  dest->set_locs_end((relocInfo*) p);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   457
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   458
489c9b5090e2 Initial load
duke
parents:
diff changeset
   459
489c9b5090e2 Initial load
duke
parents:
diff changeset
   460
void external_word_Relocation::unpack_data() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   461
#ifndef _LP64
36301
cb578d8c6cba 8149741: Don't refer to stub entry points by index in external_word relocations
vlivanov
parents: 35086
diff changeset
   462
  _target = (address) (intptr_t)unpack_1_int();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   463
#else
47765
b7c7428eaab9 8189610: Reconcile jvm.h and all jvm_md.h between java.base and hotspot
coleenp
parents: 47216
diff changeset
   464
  jint lo, hi;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   465
  unpack_2_ints(lo, hi);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   466
  jlong t = jlong_from(hi, lo);;
36301
cb578d8c6cba 8149741: Don't refer to stub entry points by index in external_word relocations
vlivanov
parents: 35086
diff changeset
   467
  _target = (address) t;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   468
#endif /* _LP64 */
489c9b5090e2 Initial load
duke
parents:
diff changeset
   469
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   470
489c9b5090e2 Initial load
duke
parents:
diff changeset
   471
489c9b5090e2 Initial load
duke
parents:
diff changeset
   472
void internal_word_Relocation::pack_data_to(CodeSection* dest) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   473
  short* p = (short*) dest->locs_end();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   474
  normalize_address(_target, dest, true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   475
489c9b5090e2 Initial load
duke
parents:
diff changeset
   476
  // Check whether my target address is valid within this section.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   477
  // If not, strengthen the relocation type to point to another section.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   478
  int sindex = _section;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   479
  if (sindex == CodeBuffer::SECT_NONE && _target != NULL
489c9b5090e2 Initial load
duke
parents:
diff changeset
   480
      && (!dest->allocates(_target) || _target == dest->locs_point())) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   481
    sindex = dest->outer()->section_index_of(_target);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   482
    guarantee(sindex != CodeBuffer::SECT_NONE, "must belong somewhere");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   483
    relocInfo* base = dest->locs_end() - 1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   484
    assert(base->type() == this->type(), "sanity");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   485
    // Change the written type, to be section_word_type instead.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   486
    base->set_type(relocInfo::section_word_type);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   487
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   488
489c9b5090e2 Initial load
duke
parents:
diff changeset
   489
  // Note: An internal_word relocation cannot refer to its own instruction,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   490
  // because we reserve "0" to mean that the pointer itself is embedded
489c9b5090e2 Initial load
duke
parents:
diff changeset
   491
  // in the code stream.  We use a section_word relocation for such cases.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   492
489c9b5090e2 Initial load
duke
parents:
diff changeset
   493
  if (sindex == CodeBuffer::SECT_NONE) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   494
    assert(type() == relocInfo::internal_word_type, "must be base class");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   495
    guarantee(_target == NULL || dest->allocates2(_target), "must be within the given code section");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   496
    jint x0 = scaled_offset_null_special(_target, dest->locs_point());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   497
    assert(!(x0 == 0 && _target != NULL), "correct encoding of null target");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   498
    p = pack_1_int_to(p, x0);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   499
  } else {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   500
    assert(_target != NULL, "sanity");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   501
    CodeSection* sect = dest->outer()->code_section(sindex);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   502
    guarantee(sect->allocates2(_target), "must be in correct section");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   503
    address base = sect->start();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   504
    jint offset = scaled_offset(_target, base);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   505
    assert((uint)sindex < (uint)CodeBuffer::SECT_LIMIT, "sanity");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   506
    assert(CodeBuffer::SECT_LIMIT <= (1 << section_width), "section_width++");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   507
    p = pack_1_int_to(p, (offset << section_width) | sindex);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   508
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   509
489c9b5090e2 Initial load
duke
parents:
diff changeset
   510
  dest->set_locs_end((relocInfo*) p);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   511
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   512
489c9b5090e2 Initial load
duke
parents:
diff changeset
   513
489c9b5090e2 Initial load
duke
parents:
diff changeset
   514
void internal_word_Relocation::unpack_data() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   515
  jint x0 = unpack_1_int();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   516
  _target = x0==0? NULL: address_from_scaled_offset(x0, addr());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   517
  _section = CodeBuffer::SECT_NONE;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   518
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   519
489c9b5090e2 Initial load
duke
parents:
diff changeset
   520
489c9b5090e2 Initial load
duke
parents:
diff changeset
   521
void section_word_Relocation::unpack_data() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   522
  jint    x      = unpack_1_int();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   523
  jint    offset = (x >> section_width);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   524
  int     sindex = (x & ((1<<section_width)-1));
489c9b5090e2 Initial load
duke
parents:
diff changeset
   525
  address base   = binding()->section_start(sindex);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   526
489c9b5090e2 Initial load
duke
parents:
diff changeset
   527
  _section = sindex;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   528
  _target  = address_from_scaled_offset(offset, base);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   529
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   530
489c9b5090e2 Initial load
duke
parents:
diff changeset
   531
//// miscellaneous methods
489c9b5090e2 Initial load
duke
parents:
diff changeset
   532
oop* oop_Relocation::oop_addr() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   533
  int n = _oop_index;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   534
  if (n == 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   535
    // oop is stored in the code stream
489c9b5090e2 Initial load
duke
parents:
diff changeset
   536
    return (oop*) pd_address_in_code();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   537
  } else {
5686
5435e77aa3df 6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents: 1
diff changeset
   538
    // oop is stored in table at nmethod::oops_begin
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   539
    return code()->oop_addr_at(n);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   540
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   541
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   542
489c9b5090e2 Initial load
duke
parents:
diff changeset
   543
489c9b5090e2 Initial load
duke
parents:
diff changeset
   544
oop oop_Relocation::oop_value() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   545
  oop v = *oop_addr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   546
  // clean inline caches store a special pseudo-null
52070
e4d72440d60e 8211279: Verify missing object equals barriers
rkennke
parents: 49902
diff changeset
   547
  if (v == Universe::non_oop_word())  v = NULL;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   548
  return v;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   549
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   550
489c9b5090e2 Initial load
duke
parents:
diff changeset
   551
489c9b5090e2 Initial load
duke
parents:
diff changeset
   552
void oop_Relocation::fix_oop_relocation() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   553
  if (!oop_is_immediate()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   554
    // get the oop from the pool, and re-insert it into the instruction:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   555
    set_value(value());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   556
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   557
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   558
489c9b5090e2 Initial load
duke
parents:
diff changeset
   559
8724
693c6b883b54 7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents: 8107
diff changeset
   560
void oop_Relocation::verify_oop_relocation() {
693c6b883b54 7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents: 8107
diff changeset
   561
  if (!oop_is_immediate()) {
693c6b883b54 7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents: 8107
diff changeset
   562
    // get the oop from the pool, and re-insert it into the instruction:
693c6b883b54 7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents: 8107
diff changeset
   563
    verify_value(value());
693c6b883b54 7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents: 8107
diff changeset
   564
  }
693c6b883b54 7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents: 8107
diff changeset
   565
}
693c6b883b54 7028374: race in fix_oop_relocations for scavengeable nmethods
never
parents: 8107
diff changeset
   566
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   567
// meta data versions
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   568
Metadata** metadata_Relocation::metadata_addr() {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   569
  int n = _metadata_index;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   570
  if (n == 0) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   571
    // metadata is stored in the code stream
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   572
    return (Metadata**) pd_address_in_code();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   573
    } else {
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   574
    // metadata is stored in table at nmethod::metadatas_begin
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   575
    return code()->metadata_addr_at(n);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   576
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   577
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   578
489c9b5090e2 Initial load
duke
parents:
diff changeset
   579
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   580
Metadata* metadata_Relocation::metadata_value() {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   581
  Metadata* v = *metadata_addr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   582
  // clean inline caches store a special pseudo-null
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   583
  if (v == (Metadata*)Universe::non_oop_word())  v = NULL;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   584
  return v;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   585
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   586
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   587
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   588
void metadata_Relocation::fix_metadata_relocation() {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   589
  if (!metadata_is_immediate()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   590
    // get the metadata from the pool, and re-insert it into the instruction:
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   591
    pd_fix_value(value());
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   592
  }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   593
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   594
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   595
address virtual_call_Relocation::cached_value() {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   596
  assert(_cached_value != NULL && _cached_value < addr(), "must precede ic_call");
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   597
  return _cached_value;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   598
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   599
35086
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   600
Method* virtual_call_Relocation::method_value() {
42044
c1e8e7815bf3 8167299: -XX:+PrintRelocations crashes the VM
simonis
parents: 38133
diff changeset
   601
  CompiledMethod* cm = code();
c1e8e7815bf3 8167299: -XX:+PrintRelocations crashes the VM
simonis
parents: 38133
diff changeset
   602
  if (cm == NULL) return (Method*)NULL;
c1e8e7815bf3 8167299: -XX:+PrintRelocations crashes the VM
simonis
parents: 38133
diff changeset
   603
  Metadata* m = cm->metadata_at(_method_index);
35086
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   604
  assert(m != NULL || _method_index == 0, "should be non-null for non-zero index");
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   605
  assert(m == NULL || m->is_method(), "not a method");
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   606
  return (Method*)m;
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   607
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   608
52857
7e268f863ff0 8214338: Move IC stub refilling out of IC cache transitions
eosterlund
parents: 52070
diff changeset
   609
bool virtual_call_Relocation::clear_inline_cache() {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   610
  // No stubs for ICs
489c9b5090e2 Initial load
duke
parents:
diff changeset
   611
  // Clean IC
489c9b5090e2 Initial load
duke
parents:
diff changeset
   612
  ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   613
  CompiledIC* icache = CompiledIC_at(this);
52857
7e268f863ff0 8214338: Move IC stub refilling out of IC cache transitions
eosterlund
parents: 52070
diff changeset
   614
  return icache->set_to_clean();
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   615
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   616
489c9b5090e2 Initial load
duke
parents:
diff changeset
   617
35086
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   618
void opt_virtual_call_Relocation::pack_data_to(CodeSection* dest) {
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   619
  short* p = (short*) dest->locs_end();
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   620
  p = pack_1_int_to(p, _method_index);
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   621
  dest->set_locs_end((relocInfo*) p);
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   622
}
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   623
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   624
void opt_virtual_call_Relocation::unpack_data() {
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   625
  _method_index = unpack_1_int();
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   626
}
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   627
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   628
Method* opt_virtual_call_Relocation::method_value() {
42044
c1e8e7815bf3 8167299: -XX:+PrintRelocations crashes the VM
simonis
parents: 38133
diff changeset
   629
  CompiledMethod* cm = code();
c1e8e7815bf3 8167299: -XX:+PrintRelocations crashes the VM
simonis
parents: 38133
diff changeset
   630
  if (cm == NULL) return (Method*)NULL;
c1e8e7815bf3 8167299: -XX:+PrintRelocations crashes the VM
simonis
parents: 38133
diff changeset
   631
  Metadata* m = cm->metadata_at(_method_index);
35086
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   632
  assert(m != NULL || _method_index == 0, "should be non-null for non-zero index");
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   633
  assert(m == NULL || m->is_method(), "not a method");
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   634
  return (Method*)m;
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   635
}
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   636
52857
7e268f863ff0 8214338: Move IC stub refilling out of IC cache transitions
eosterlund
parents: 52070
diff changeset
   637
template<typename CompiledICorStaticCall>
7e268f863ff0 8214338: Move IC stub refilling out of IC cache transitions
eosterlund
parents: 52070
diff changeset
   638
static bool set_to_clean_no_ic_refill(CompiledICorStaticCall* ic) {
7e268f863ff0 8214338: Move IC stub refilling out of IC cache transitions
eosterlund
parents: 52070
diff changeset
   639
  guarantee(ic->set_to_clean(), "Should not need transition stubs");
7e268f863ff0 8214338: Move IC stub refilling out of IC cache transitions
eosterlund
parents: 52070
diff changeset
   640
  return true;
7e268f863ff0 8214338: Move IC stub refilling out of IC cache transitions
eosterlund
parents: 52070
diff changeset
   641
}
7e268f863ff0 8214338: Move IC stub refilling out of IC cache transitions
eosterlund
parents: 52070
diff changeset
   642
7e268f863ff0 8214338: Move IC stub refilling out of IC cache transitions
eosterlund
parents: 52070
diff changeset
   643
bool opt_virtual_call_Relocation::clear_inline_cache() {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   644
  // No stubs for ICs
489c9b5090e2 Initial load
duke
parents:
diff changeset
   645
  // Clean IC
489c9b5090e2 Initial load
duke
parents:
diff changeset
   646
  ResourceMark rm;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   647
  CompiledIC* icache = CompiledIC_at(this);
52857
7e268f863ff0 8214338: Move IC stub refilling out of IC cache transitions
eosterlund
parents: 52070
diff changeset
   648
  return set_to_clean_no_ic_refill(icache);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   649
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   650
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42064
diff changeset
   651
address opt_virtual_call_Relocation::static_stub(bool is_aot) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   652
  // search for the static stub who points back to this static call
489c9b5090e2 Initial load
duke
parents:
diff changeset
   653
  address static_call_addr = addr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   654
  RelocIterator iter(code());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   655
  while (iter.next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   656
    if (iter.type() == relocInfo::static_stub_type) {
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 24952
diff changeset
   657
      static_stub_Relocation* stub_reloc = iter.static_stub_reloc();
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42064
diff changeset
   658
      if (stub_reloc->static_call() == static_call_addr && stub_reloc->is_aot() == is_aot) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   659
        return iter.addr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   660
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   661
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   662
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   663
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   664
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   665
35086
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   666
Method* static_call_Relocation::method_value() {
42044
c1e8e7815bf3 8167299: -XX:+PrintRelocations crashes the VM
simonis
parents: 38133
diff changeset
   667
  CompiledMethod* cm = code();
c1e8e7815bf3 8167299: -XX:+PrintRelocations crashes the VM
simonis
parents: 38133
diff changeset
   668
  if (cm == NULL) return (Method*)NULL;
c1e8e7815bf3 8167299: -XX:+PrintRelocations crashes the VM
simonis
parents: 38133
diff changeset
   669
  Metadata* m = cm->metadata_at(_method_index);
35086
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   670
  assert(m != NULL || _method_index == 0, "should be non-null for non-zero index");
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   671
  assert(m == NULL || m->is_method(), "not a method");
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   672
  return (Method*)m;
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   673
}
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   674
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   675
void static_call_Relocation::pack_data_to(CodeSection* dest) {
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   676
  short* p = (short*) dest->locs_end();
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   677
  p = pack_1_int_to(p, _method_index);
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   678
  dest->set_locs_end((relocInfo*) p);
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   679
}
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   680
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   681
void static_call_Relocation::unpack_data() {
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   682
  _method_index = unpack_1_int();
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   683
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   684
52857
7e268f863ff0 8214338: Move IC stub refilling out of IC cache transitions
eosterlund
parents: 52070
diff changeset
   685
bool static_call_Relocation::clear_inline_cache() {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   686
  // Safe call site info
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42064
diff changeset
   687
  CompiledStaticCall* handler = this->code()->compiledStaticCall_at(this);
52857
7e268f863ff0 8214338: Move IC stub refilling out of IC cache transitions
eosterlund
parents: 52070
diff changeset
   688
  return set_to_clean_no_ic_refill(handler);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   689
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   690
489c9b5090e2 Initial load
duke
parents:
diff changeset
   691
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42064
diff changeset
   692
address static_call_Relocation::static_stub(bool is_aot) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   693
  // search for the static stub who points back to this static call
489c9b5090e2 Initial load
duke
parents:
diff changeset
   694
  address static_call_addr = addr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   695
  RelocIterator iter(code());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   696
  while (iter.next()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   697
    if (iter.type() == relocInfo::static_stub_type) {
33160
c59f1676d27e 8136421: JEP 243: Java-Level JVM Compiler Interface
twisti
parents: 24952
diff changeset
   698
      static_stub_Relocation* stub_reloc = iter.static_stub_reloc();
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42064
diff changeset
   699
      if (stub_reloc->static_call() == static_call_addr && stub_reloc->is_aot() == is_aot) {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   700
        return iter.addr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   701
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   702
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   703
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   704
  return NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   705
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   706
22813
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   707
// Finds the trampoline address for a call. If no trampoline stub is
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   708
// found NULL is returned which can be handled by the caller.
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   709
address trampoline_stub_Relocation::get_trampoline_for(address call, nmethod* code) {
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   710
  // There are no relocations available when the code gets relocated
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   711
  // because of CodeBuffer expansion.
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   712
  if (code->relocation_size() == 0)
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   713
    return NULL;
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   714
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   715
  RelocIterator iter(code, call);
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   716
  while (iter.next()) {
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   717
    if (iter.type() == relocInfo::trampoline_stub_type) {
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   718
      if (iter.trampoline_stub_reloc()->owner() == call) {
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   719
        return iter.addr();
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   720
      }
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   721
    }
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   722
  }
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   723
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   724
  return NULL;
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   725
}
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   726
52857
7e268f863ff0 8214338: Move IC stub refilling out of IC cache transitions
eosterlund
parents: 52070
diff changeset
   727
bool static_stub_Relocation::clear_inline_cache() {
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   728
  // Call stub is only used when calling the interpreted code.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   729
  // It does not really need to be cleared, except that we want to clean out the methodoop.
42650
1f304d0c888b 8171008: Integrate AOT compiler into JDK
kvn
parents: 42064
diff changeset
   730
  CompiledDirectStaticCall::set_stub_to_clean(this);
52857
7e268f863ff0 8214338: Move IC stub refilling out of IC cache transitions
eosterlund
parents: 52070
diff changeset
   731
  return true;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   732
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   733
489c9b5090e2 Initial load
duke
parents:
diff changeset
   734
489c9b5090e2 Initial load
duke
parents:
diff changeset
   735
void external_word_Relocation::fix_relocation_after_move(const CodeBuffer* src, CodeBuffer* dest) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   736
  address target = _target;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   737
  if (target == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   738
    // An absolute embedded reference to an external location,
489c9b5090e2 Initial load
duke
parents:
diff changeset
   739
    // which means there is nothing to fix here.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   740
    return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   741
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   742
  // Probably this reference is absolute, not relative, so the
489c9b5090e2 Initial load
duke
parents:
diff changeset
   743
  // following is probably a no-op.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   744
  assert(src->section_index_of(target) == CodeBuffer::SECT_NONE, "sanity");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   745
  set_value(target);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   746
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   747
489c9b5090e2 Initial load
duke
parents:
diff changeset
   748
489c9b5090e2 Initial load
duke
parents:
diff changeset
   749
address external_word_Relocation::target() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   750
  address target = _target;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   751
  if (target == NULL) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   752
    target = pd_get_address_from_code();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   753
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   754
  return target;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   755
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   756
489c9b5090e2 Initial load
duke
parents:
diff changeset
   757
489c9b5090e2 Initial load
duke
parents:
diff changeset
   758
void internal_word_Relocation::fix_relocation_after_move(const CodeBuffer* src, CodeBuffer* dest) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   759
  address target = _target;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   760
  if (target == NULL) {
24952
953481cd953d 8044538: assert(which != imm_operand) failed: instruction is not a movq reg, imm64
thartmann
parents: 24424
diff changeset
   761
    target = new_addr_for(this->target(), src, dest);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   762
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   763
  set_value(target);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   764
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   765
489c9b5090e2 Initial load
duke
parents:
diff changeset
   766
489c9b5090e2 Initial load
duke
parents:
diff changeset
   767
address internal_word_Relocation::target() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   768
  address target = _target;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   769
  if (target == NULL) {
24952
953481cd953d 8044538: assert(which != imm_operand) failed: instruction is not a movq reg, imm64
thartmann
parents: 24424
diff changeset
   770
    if (addr_in_const()) {
953481cd953d 8044538: assert(which != imm_operand) failed: instruction is not a movq reg, imm64
thartmann
parents: 24424
diff changeset
   771
      target = *(address*)addr();
953481cd953d 8044538: assert(which != imm_operand) failed: instruction is not a movq reg, imm64
thartmann
parents: 24424
diff changeset
   772
    } else {
953481cd953d 8044538: assert(which != imm_operand) failed: instruction is not a movq reg, imm64
thartmann
parents: 24424
diff changeset
   773
      target = pd_get_address_from_code();
953481cd953d 8044538: assert(which != imm_operand) failed: instruction is not a movq reg, imm64
thartmann
parents: 24424
diff changeset
   774
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   775
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   776
  return target;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   777
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   778
489c9b5090e2 Initial load
duke
parents:
diff changeset
   779
//---------------------------------------------------------------------------------
489c9b5090e2 Initial load
duke
parents:
diff changeset
   780
// Non-product code
489c9b5090e2 Initial load
duke
parents:
diff changeset
   781
489c9b5090e2 Initial load
duke
parents:
diff changeset
   782
#ifndef PRODUCT
489c9b5090e2 Initial load
duke
parents:
diff changeset
   783
489c9b5090e2 Initial load
duke
parents:
diff changeset
   784
static const char* reloc_type_string(relocInfo::relocType t) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   785
  switch (t) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   786
  #define EACH_CASE(name) \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   787
  case relocInfo::name##_type: \
489c9b5090e2 Initial load
duke
parents:
diff changeset
   788
    return #name;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   789
489c9b5090e2 Initial load
duke
parents:
diff changeset
   790
  APPLY_TO_RELOCATIONS(EACH_CASE);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   791
  #undef EACH_CASE
489c9b5090e2 Initial load
duke
parents:
diff changeset
   792
489c9b5090e2 Initial load
duke
parents:
diff changeset
   793
  case relocInfo::none:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   794
    return "none";
489c9b5090e2 Initial load
duke
parents:
diff changeset
   795
  case relocInfo::data_prefix_tag:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   796
    return "prefix";
489c9b5090e2 Initial load
duke
parents:
diff changeset
   797
  default:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   798
    return "UNKNOWN RELOC TYPE";
489c9b5090e2 Initial load
duke
parents:
diff changeset
   799
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   800
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   801
489c9b5090e2 Initial load
duke
parents:
diff changeset
   802
489c9b5090e2 Initial load
duke
parents:
diff changeset
   803
void RelocIterator::print_current() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   804
  if (!has_current()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   805
    tty->print_cr("(no relocs)");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   806
    return;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   807
  }
7427
d7b79a367474 6985015: C1 needs to support compressed oops
iveresov
parents: 7397
diff changeset
   808
  tty->print("relocInfo@" INTPTR_FORMAT " [type=%d(%s) addr=" INTPTR_FORMAT " offset=%d",
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 24952
diff changeset
   809
             p2i(_current), type(), reloc_type_string((relocInfo::relocType) type()), p2i(_addr), _current->addr_offset());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   810
  if (current()->format() != 0)
489c9b5090e2 Initial load
duke
parents:
diff changeset
   811
    tty->print(" format=%d", current()->format());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   812
  if (datalen() == 1) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   813
    tty->print(" data=%d", data()[0]);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   814
  } else if (datalen() > 0) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   815
    tty->print(" data={");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   816
    for (int i = 0; i < datalen(); i++) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   817
      tty->print("%04x", data()[i] & 0xFFFF);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   818
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   819
    tty->print("}");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   820
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   821
  tty->print("]");
489c9b5090e2 Initial load
duke
parents:
diff changeset
   822
  switch (type()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   823
  case relocInfo::oop_type:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   824
    {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   825
      oop_Relocation* r = oop_reloc();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   826
      oop* oop_addr  = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   827
      oop  raw_oop   = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   828
      oop  oop_value = NULL;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   829
      if (code() != NULL || r->oop_is_immediate()) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   830
        oop_addr  = r->oop_addr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   831
        raw_oop   = *oop_addr;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   832
        oop_value = r->oop_value();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   833
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   834
      tty->print(" | [oop_addr=" INTPTR_FORMAT " *=" INTPTR_FORMAT " offset=%d]",
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 24952
diff changeset
   835
                 p2i(oop_addr), p2i(raw_oop), r->offset());
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   836
      // Do not print the oop by default--we want this routine to
489c9b5090e2 Initial load
duke
parents:
diff changeset
   837
      // work even during GC or other inconvenient times.
489c9b5090e2 Initial load
duke
parents:
diff changeset
   838
      if (WizardMode && oop_value != NULL) {
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 24952
diff changeset
   839
        tty->print("oop_value=" INTPTR_FORMAT ": ", p2i(oop_value));
46968
9119841280f4 8160399: is_oop_or_null involves undefined behavior
coleenp
parents: 46630
diff changeset
   840
        if (oopDesc::is_oop(oop_value)) {
42044
c1e8e7815bf3 8167299: -XX:+PrintRelocations crashes the VM
simonis
parents: 38133
diff changeset
   841
          oop_value->print_value_on(tty);
c1e8e7815bf3 8167299: -XX:+PrintRelocations crashes the VM
simonis
parents: 38133
diff changeset
   842
        }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   843
      }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   844
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   845
    }
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   846
  case relocInfo::metadata_type:
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   847
    {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   848
      metadata_Relocation* r = metadata_reloc();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   849
      Metadata** metadata_addr  = NULL;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   850
      Metadata*    raw_metadata   = NULL;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   851
      Metadata*    metadata_value = NULL;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   852
      if (code() != NULL || r->metadata_is_immediate()) {
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   853
        metadata_addr  = r->metadata_addr();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   854
        raw_metadata   = *metadata_addr;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   855
        metadata_value = r->metadata_value();
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   856
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   857
      tty->print(" | [metadata_addr=" INTPTR_FORMAT " *=" INTPTR_FORMAT " offset=%d]",
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 24952
diff changeset
   858
                 p2i(metadata_addr), p2i(raw_metadata), r->offset());
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   859
      if (metadata_value != NULL) {
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 24952
diff changeset
   860
        tty->print("metadata_value=" INTPTR_FORMAT ": ", p2i(metadata_value));
13728
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   861
        metadata_value->print_value_on(tty);
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   862
      }
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   863
      break;
882756847a04 6964458: Reimplement class meta-data storage to use native memory
coleenp
parents: 9124
diff changeset
   864
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   865
  case relocInfo::external_word_type:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   866
  case relocInfo::internal_word_type:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   867
  case relocInfo::section_word_type:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   868
    {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   869
      DataRelocation* r = (DataRelocation*) reloc();
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 24952
diff changeset
   870
      tty->print(" | [target=" INTPTR_FORMAT "]", p2i(r->value())); //value==target
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   871
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   872
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   873
  case relocInfo::static_call_type:
35086
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   874
    {
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   875
      static_call_Relocation* r = (static_call_Relocation*) reloc();
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   876
      tty->print(" | [destination=" INTPTR_FORMAT " metadata=" INTPTR_FORMAT "]",
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   877
                 p2i(r->destination()), p2i(r->method_value()));
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   878
      break;
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   879
    }
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   880
  case relocInfo::runtime_call_type:
42064
a530dbabe64f 8167184: [s390] Extend relocations for pc-relative instructions.
goetz
parents: 42044
diff changeset
   881
  case relocInfo::runtime_call_w_cp_type:
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   882
    {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   883
      CallRelocation* r = (CallRelocation*) reloc();
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 24952
diff changeset
   884
      tty->print(" | [destination=" INTPTR_FORMAT "]", p2i(r->destination()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   885
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   886
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   887
  case relocInfo::virtual_call_type:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   888
    {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   889
      virtual_call_Relocation* r = (virtual_call_Relocation*) reloc();
35086
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   890
      tty->print(" | [destination=" INTPTR_FORMAT " cached_value=" INTPTR_FORMAT " metadata=" INTPTR_FORMAT "]",
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   891
                 p2i(r->destination()), p2i(r->cached_value()), p2i(r->method_value()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   892
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   893
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   894
  case relocInfo::static_stub_type:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   895
    {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   896
      static_stub_Relocation* r = (static_stub_Relocation*) reloc();
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 24952
diff changeset
   897
      tty->print(" | [static_call=" INTPTR_FORMAT "]", p2i(r->static_call()));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   898
      break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   899
    }
22813
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   900
  case relocInfo::trampoline_stub_type:
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   901
    {
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   902
      trampoline_stub_Relocation* r = (trampoline_stub_Relocation*) reloc();
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 24952
diff changeset
   903
      tty->print(" | [trampoline owner=" INTPTR_FORMAT "]", p2i(r->owner()));
22813
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   904
      break;
422557569a6b 8016696: PPC64 (part 4): add relocation for trampoline stubs
goetz
parents: 18446
diff changeset
   905
    }
35086
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   906
  case relocInfo::opt_virtual_call_type:
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   907
    {
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   908
      opt_virtual_call_Relocation* r = (opt_virtual_call_Relocation*) reloc();
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   909
      tty->print(" | [destination=" INTPTR_FORMAT " metadata=" INTPTR_FORMAT "]",
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   910
                 p2i(r->destination()), p2i(r->method_value()));
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   911
      break;
bbf32241d851 8072008: Emit direct call instead of linkTo* for recursive indy/MH.invoke* calls
vlivanov
parents: 33807
diff changeset
   912
    }
46630
75aa3e39d02c 8182299: Enable disabled clang warnings, build on OSX 10 + Xcode 8
jwilhelm
parents: 46530
diff changeset
   913
  default:
75aa3e39d02c 8182299: Enable disabled clang warnings, build on OSX 10 + Xcode 8
jwilhelm
parents: 46530
diff changeset
   914
    break;
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   915
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   916
  tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   917
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   918
489c9b5090e2 Initial load
duke
parents:
diff changeset
   919
489c9b5090e2 Initial load
duke
parents:
diff changeset
   920
void RelocIterator::print() {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   921
  RelocIterator save_this = (*this);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   922
  relocInfo* scan = _current;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   923
  if (!has_current())  scan += 1;  // nothing to scan here!
489c9b5090e2 Initial load
duke
parents:
diff changeset
   924
489c9b5090e2 Initial load
duke
parents:
diff changeset
   925
  bool skip_next = has_current();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   926
  bool got_next;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   927
  while (true) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   928
    got_next = (skip_next || next());
489c9b5090e2 Initial load
duke
parents:
diff changeset
   929
    skip_next = false;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   930
33148
68fa8b6c4340 8042893: compiler: PRAGMA_FORMAT_MUTE_WARNINGS_FOR_GCC needs to be removed from source files
david
parents: 24952
diff changeset
   931
    tty->print("         @" INTPTR_FORMAT ": ", p2i(scan));
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   932
    relocInfo* newscan = _current+1;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   933
    if (!has_current())  newscan -= 1;  // nothing to scan here!
489c9b5090e2 Initial load
duke
parents:
diff changeset
   934
    while (scan < newscan) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   935
      tty->print("%04x", *(short*)scan & 0xFFFF);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   936
      scan++;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   937
    }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   938
    tty->cr();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   939
489c9b5090e2 Initial load
duke
parents:
diff changeset
   940
    if (!got_next)  break;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   941
    print_current();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   942
  }
489c9b5090e2 Initial load
duke
parents:
diff changeset
   943
489c9b5090e2 Initial load
duke
parents:
diff changeset
   944
  (*this) = save_this;
489c9b5090e2 Initial load
duke
parents:
diff changeset
   945
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   946
489c9b5090e2 Initial load
duke
parents:
diff changeset
   947
// For the debugger:
489c9b5090e2 Initial load
duke
parents:
diff changeset
   948
extern "C"
5686
5435e77aa3df 6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents: 1
diff changeset
   949
void print_blob_locs(nmethod* nm) {
5435e77aa3df 6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents: 1
diff changeset
   950
  nm->print();
5435e77aa3df 6951083: oops and relocations should part of nmethod not CodeBlob
twisti
parents: 1
diff changeset
   951
  RelocIterator iter(nm);
1
489c9b5090e2 Initial load
duke
parents:
diff changeset
   952
  iter.print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   953
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   954
extern "C"
489c9b5090e2 Initial load
duke
parents:
diff changeset
   955
void print_buf_locs(CodeBuffer* cb) {
489c9b5090e2 Initial load
duke
parents:
diff changeset
   956
  FlagSetting fs(PrintRelocations, true);
489c9b5090e2 Initial load
duke
parents:
diff changeset
   957
  cb->print();
489c9b5090e2 Initial load
duke
parents:
diff changeset
   958
}
489c9b5090e2 Initial load
duke
parents:
diff changeset
   959
#endif // !PRODUCT