1 /*
   2  * Copyright (c) 1997, 2006, 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 // This file holds platform-independent bodies of inline functions for frames.
  26 
  27 // Note: The bcx usually contains the bcp; however during GC it contains the bci
  28 //       (changed by gc_prologue() and gc_epilogue()) to be methodOop position
  29 //       independent. These accessors make sure the correct value is returned
  30 //       by testing the range of the bcx value. bcp's are guaranteed to be above
  31 //       max_method_code_size, since methods are always allocated in OldSpace and
  32 //       Eden is allocated before OldSpace.
  33 //
  34 //       The bcp is accessed sometimes during GC for ArgumentDescriptors; than
  35 //       the correct translation has to be performed (was bug).
  36 
  37 inline bool frame::is_bci(intptr_t bcx) {
  38 #ifdef _LP64
  39   return ((uintptr_t) bcx) <= ((uintptr_t) max_method_code_size) ;
  40 #else
  41   return 0 <= bcx && bcx <= max_method_code_size;
  42 #endif
  43 }
  44 
  45 inline bool frame::is_entry_frame() const {
  46   return StubRoutines::returns_to_call_stub(pc());
  47 }
  48 
  49 inline bool frame::is_first_frame() const {
  50   return is_entry_frame() && entry_frame_is_first();
  51 }
  52 
  53 // here are the platform-dependent bodies:
  54 
  55 # include "incls/_frame_pd.inline.hpp.incl"

   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  */
  24 
  25 #ifndef SHARE_VM_RUNTIME_FRAME_INLINE_HPP
  26 #define SHARE_VM_RUNTIME_FRAME_INLINE_HPP
  27 
  28 #include "interpreter/bytecodeInterpreter.hpp"
  29 #include "interpreter/bytecodeInterpreter.inline.hpp"
  30 #include "interpreter/interpreter.hpp"
  31 #include "oops/methodOop.hpp"
  32 #include "runtime/frame.hpp"
  33 #include "runtime/signature.hpp"
  34 #ifdef TARGET_ARCH_x86
  35 # include "jniTypes_x86.hpp"
  36 #endif
  37 #ifdef TARGET_ARCH_sparc
  38 # include "jniTypes_sparc.hpp"
  39 #endif
  40 #ifdef TARGET_ARCH_zero
  41 # include "jniTypes_zero.hpp"
  42 #endif
  43 #ifdef ZERO
  44 #ifdef TARGET_ARCH_zero
  45 # include "entryFrame_zero.hpp"
  46 # include "fakeStubFrame_zero.hpp"
  47 # include "interpreterFrame_zero.hpp"
  48 # include "sharkFrame_zero.hpp"
  49 #endif
  50 #endif
  51 
  52 // This file holds platform-independent bodies of inline functions for frames.
  53 
  54 // Note: The bcx usually contains the bcp; however during GC it contains the bci
  55 //       (changed by gc_prologue() and gc_epilogue()) to be methodOop position
  56 //       independent. These accessors make sure the correct value is returned
  57 //       by testing the range of the bcx value. bcp's are guaranteed to be above
  58 //       max_method_code_size, since methods are always allocated in OldSpace and
  59 //       Eden is allocated before OldSpace.
  60 //
  61 //       The bcp is accessed sometimes during GC for ArgumentDescriptors; than
  62 //       the correct translation has to be performed (was bug).
  63 
  64 inline bool frame::is_bci(intptr_t bcx) {
  65 #ifdef _LP64
  66   return ((uintptr_t) bcx) <= ((uintptr_t) max_method_code_size) ;
  67 #else
  68   return 0 <= bcx && bcx <= max_method_code_size;
  69 #endif
  70 }
  71 
  72 inline bool frame::is_entry_frame() const {
  73   return StubRoutines::returns_to_call_stub(pc());
  74 }
  75 
  76 inline bool frame::is_first_frame() const {
  77   return is_entry_frame() && entry_frame_is_first();
  78 }
  79 
  80 // here are the platform-dependent bodies:
  81 
  82 #ifdef TARGET_ARCH_x86
  83 # include "frame_x86.inline.hpp"
  84 #endif
  85 #ifdef TARGET_ARCH_sparc
  86 # include "frame_sparc.inline.hpp"
  87 #endif
  88 #ifdef TARGET_ARCH_zero
  89 # include "frame_zero.inline.hpp"
  90 #endif
  91 
  92 
  93 #endif // SHARE_VM_RUNTIME_FRAME_INLINE_HPP