jdk8-mips64-public/hotspot: src/share/vm/shark/sharkNativeWrapper.hpp@e863062e521d (annotated)

src/share/vm/shark/sharkNativeWrapper.hpp@e863062e521d (annotated)

src/share/vm/shark/sharkNativeWrapper.hpp

Mon, 04 Apr 2011 03:02:00 -0700

author: twisti
date: Mon, 04 Apr 2011 03:02:00 -0700
changeset 2729: e863062e521d
parent 2314: f95d63e2154a
child 6876: 710a3c8b516e
permissions: -rw-r--r--

7032458: Zero and Shark fixes
Reviewed-by: twisti
Contributed-by: Gary Benson <gbenson@redhat.com>

 /*
  * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
  * Copyright 2009 Red Hat, Inc.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.
  *
  * This code is distributed in the hope that it will be useful, but WITHOUT
  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  * version 2 for more details (a copy is included in the LICENSE file that
  * accompanied this code).
  *
  * You should have received a copy of the GNU General Public License version
  * 2 along with this work; if not, write to the Free Software Foundation,
  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  *
  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  * or visit www.oracle.com if you need additional information or have any
  * questions.
  *
  */
 #ifndef SHARE_VM_SHARK_SHARKNATIVEWRAPPER_HPP
 #define SHARE_VM_SHARK_SHARKNATIVEWRAPPER_HPP
 #include "runtime/handles.hpp"
 #include "shark/llvmHeaders.hpp"
 #include "shark/sharkBuilder.hpp"
 #include "shark/sharkContext.hpp"
 #include "shark/sharkInvariants.hpp"
 #include "shark/sharkStack.hpp"
 class SharkNativeWrapper : public SharkCompileInvariants {
   friend class SharkStackWithNativeFrame;
  public:
   static SharkNativeWrapper* build(SharkBuilder* builder,
                                    methodHandle  target,
                                    const char*   name,
                                    BasicType*    arg_types,
                                    BasicType     return_type) {
     return new SharkNativeWrapper(builder,
                                   target,
                                   name,
                                   arg_types,
                                   return_type);
   }
  private:
   SharkNativeWrapper(SharkBuilder* builder,
                      methodHandle  target,
                      const char*   name,
                      BasicType*    arg_types,
                      BasicType     return_type)
     : SharkCompileInvariants(NULL, builder),
       _target(target),
       _arg_types(arg_types),
       _return_type(return_type),
       _lock_slot_offset(0) { initialize(name); }
  private:
   void initialize(const char* name);
  private:
   methodHandle    _target;
   BasicType*      _arg_types;
   BasicType       _return_type;
   llvm::Function* _function;
   SharkStack*     _stack;
   llvm::Value*    _oop_tmp_slot;
   OopMapSet*      _oop_maps;
   int             _receiver_slot_offset;
   int             _lock_slot_offset;
   // The method being compiled.
  protected:
   methodHandle target() const {
     return _target;
   }
   // Properties of the method.
  protected:
   int arg_size() const {
     return target()->size_of_parameters();
   }
   BasicType arg_type(int i) const {
     return _arg_types[i];
   }
   BasicType return_type() const {
     return _return_type;
   }
   bool is_static() const {
     return target()->is_static();
   }
   bool is_synchronized() const {
     return target()->is_synchronized();
   }
   bool is_returning_oop() const {
     return target()->is_returning_oop();
   }
   // The LLVM function we are building.
  public:
   llvm::Function* function() const {
     return _function;
   }
   // The Zero stack and our frame on it.
  protected:
   SharkStack* stack() const {
     return _stack;
   }
   // Temporary oop storage.
  protected:
   llvm::Value* oop_tmp_slot() const {
     assert(is_static() || is_returning_oop(), "should be");
     return _oop_tmp_slot;
   }
   // Information required by nmethod::new_native_nmethod().
  public:
   int frame_size() const {
     return stack()->oopmap_frame_size();
   }
   ByteSize receiver_offset() const {
     return in_ByteSize(_receiver_slot_offset * wordSize);
   }
   ByteSize lock_offset() const {
     return in_ByteSize(_lock_slot_offset * wordSize);
   }
   OopMapSet* oop_maps() const {
     return _oop_maps;
   }
   // Helpers.
  private:
   llvm::BasicBlock* CreateBlock(const char* name = "") const {
     return llvm::BasicBlock::Create(SharkContext::current(), name, function());
   }
   llvm::Value* thread_state_address() const {
     return builder()->CreateAddressOfStructEntry(
       thread(), JavaThread::thread_state_offset(),
       llvm::PointerType::getUnqual(SharkType::jint_type()),
       "thread_state_address");
   }
   llvm::Value* pending_exception_address() const {
     return builder()->CreateAddressOfStructEntry(
       thread(), Thread::pending_exception_offset(),
       llvm::PointerType::getUnqual(SharkType::oop_type()),
       "pending_exception_address");
   }
   void CreateSetThreadState(JavaThreadState state) const {
     builder()->CreateStore(
       LLVMValue::jint_constant(state), thread_state_address());
   }
   void CreateWriteMemorySerializePage() const {
     builder()->CreateStore(
       LLVMValue::jint_constant(1),
       builder()->CreateIntToPtr(
         builder()->CreateAdd(
           LLVMValue::intptr_constant(
             (intptr_t) os::get_memory_serialize_page()),
           builder()->CreateAnd(
             builder()->CreateLShr(
               builder()->CreatePtrToInt(thread(), SharkType::intptr_type()),
               LLVMValue::intptr_constant(os::get_serialize_page_shift_count())),
             LLVMValue::intptr_constant(os::get_serialize_page_mask()))),
         llvm::PointerType::getUnqual(SharkType::jint_type())));
   }
   void CreateResetHandleBlock() const {
     llvm::Value *active_handles = builder()->CreateValueOfStructEntry(
       thread(),
       JavaThread::active_handles_offset(),
       SharkType::jniHandleBlock_type(),
       "active_handles");
     builder()->CreateStore(
       LLVMValue::intptr_constant(0),
       builder()->CreateAddressOfStructEntry(
         active_handles,
         in_ByteSize(JNIHandleBlock::top_offset_in_bytes()),
         llvm::PointerType::getUnqual(SharkType::intptr_type()),
         "top"));
   }
   llvm::LoadInst* CreateLoadPendingException() const {
     return builder()->CreateLoad(
       pending_exception_address(), "pending_exception");
   }
 };
 #endif // SHARE_VM_SHARK_SHARKNATIVEWRAPPER_HPP

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src/share/vm/shark/sharkNativeWrapper.hpp@e863062e521d (annotated)

src/share/vm/shark/sharkNativeWrapper.hpp