1 /*

     2  * Copyright (c) 2017, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  *

    23  */

    24 

    25 #ifndef SHARE_VM_CODE_COMPILEDMETHOD_INLINE_HPP

    26 #define SHARE_VM_CODE_COMPILEDMETHOD_INLINE_HPP

    27 

    28 #include "code/compiledMethod.hpp"

    29 #include "code/nativeInst.hpp"

    30 #include "runtime/frame.hpp"

    31 

    32 // When using JVMCI the address might be off by the size of a call instruction.

    33 inline bool CompiledMethod::is_deopt_entry(address pc) {

    34   return pc == deopt_handler_begin()

    35 #if INCLUDE_JVMCI

    36     || (is_compiled_by_jvmci() && pc == (deopt_handler_begin() + NativeCall::instruction_size))

    37 #endif

    38     ;

    39 }

    40 

    41 

    42 // -----------------------------------------------------------------------------

    43 // CompiledMethod::get_deopt_original_pc

    44 //

    45 // Return the original PC for the given PC if:

    46 // (a) the given PC belongs to a nmethod and

    47 // (b) it is a deopt PC

    48 

    49 inline address CompiledMethod::get_deopt_original_pc(const frame* fr) {

    50   if (fr->cb() == NULL)  return NULL;

    51 

    52   CompiledMethod* cm = fr->cb()->as_compiled_method_or_null();

    53   if (cm != NULL && cm->is_deopt_pc(fr->pc()))

    54     return cm->get_original_pc(fr);

    55 

    56   return NULL;

    57 }

    58 

    59 #endif //SHARE_VM_CODE_COMPILEDMETHOD_INLINE_HPP