src/share/vm/code/pcDesc.cpp

Mon, 28 Feb 2011 06:07:12 -0800

author
twisti
date
Mon, 28 Feb 2011 06:07:12 -0800
changeset 2603
1b4e6a5d98e0
parent 2314
f95d63e2154a
child 2952
5cf771a79037
permissions
-rw-r--r--

7012914: JSR 292 MethodHandlesTest C1: frame::verify_return_pc(return_address) failed: must be a return pc
Reviewed-by: never, bdelsart

     1 /*
     2  * Copyright (c) 1997, 2010, Oracle and/or its affiliates. All rights reserved.
     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
     4  *
     5  * This code is free software; you can redistribute it and/or modify it
     6  * under the terms of the GNU General Public License version 2 only, as
     7  * published by the Free Software Foundation.
     8  *
     9  * This code is distributed in the hope that it will be useful, but WITHOUT
    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
    12  * version 2 for more details (a copy is included in the LICENSE file that
    13  * accompanied this code).
    14  *
    15  * You should have received a copy of the GNU General Public License version
    16  * 2 along with this work; if not, write to the Free Software Foundation,
    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
    18  *
    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
    20  * or visit www.oracle.com if you need additional information or have any
    21  * questions.
    22  *
    23  */
    25 #include "precompiled.hpp"
    26 #include "code/debugInfoRec.hpp"
    27 #include "code/nmethod.hpp"
    28 #include "code/pcDesc.hpp"
    29 #include "code/scopeDesc.hpp"
    30 #include "memory/resourceArea.hpp"
    32 PcDesc::PcDesc(int pc_offset, int scope_decode_offset, int obj_decode_offset) {
    33   assert(sizeof(PcDescFlags) <= 4, "occupies more than a word");
    34   _pc_offset           = pc_offset;
    35   _scope_decode_offset = scope_decode_offset;
    36   _obj_decode_offset   = obj_decode_offset;
    37   _flags.word          = 0;
    38 }
    40 address PcDesc::real_pc(const nmethod* code) const {
    41   return code->code_begin() + pc_offset();
    42 }
    44 void PcDesc::print(nmethod* code) {
    45 #ifndef PRODUCT
    46   ResourceMark rm;
    47   tty->print_cr("PcDesc(pc=0x%lx offset=%x):", real_pc(code), pc_offset());
    49   if (scope_decode_offset() == DebugInformationRecorder::serialized_null) {
    50     return;
    51   }
    53   for (ScopeDesc* sd = code->scope_desc_at(real_pc(code));
    54        sd != NULL;
    55        sd = sd->sender()) {
    56     tty->print("  ");
    57     sd->method()->print_short_name(tty);
    58     tty->print("  @%d", sd->bci());
    59     if (sd->should_reexecute())
    60       tty->print("  reexecute=true");
    61     tty->cr();
    62   }
    63 #endif
    64 }
    66 bool PcDesc::verify(nmethod* code) {
    67   //Unimplemented();
    68   return true;
    69 }

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