Mercurial > jdk8-mips64-public > hotspot / annotate
src/share/vm/shark/sharkMemoryManager.hpp@f90c822e73f8 (annotated)
src/share/vm/shark/sharkMemoryManager.hpp
Wed, 27 Apr 2016 01:25:04 +0800
- author
- aoqi
- date
- Wed, 27 Apr 2016 01:25:04 +0800
- changeset 0
- f90c822e73f8
- child 6876
- 710a3c8b516e
- permissions
- -rw-r--r--
Initial load
http://hg.openjdk.java.net/jdk8u/jdk8u/hotspot/
changeset: 6782:28b50d07f6f8
tag: jdk8u25-b17
| aoqi@0 | 1 | /* |
| aoqi@0 | 2 | * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved. |
| aoqi@0 | 3 | * Copyright 2009 Red Hat, Inc. |
| aoqi@0 | 4 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| aoqi@0 | 5 | * |
| aoqi@0 | 6 | * This code is free software; you can redistribute it and/or modify it |
| aoqi@0 | 7 | * under the terms of the GNU General Public License version 2 only, as |
| aoqi@0 | 8 | * published by the Free Software Foundation. |
| aoqi@0 | 9 | * |
| aoqi@0 | 10 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| aoqi@0 | 11 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| aoqi@0 | 12 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| aoqi@0 | 13 | * version 2 for more details (a copy is included in the LICENSE file that |
| aoqi@0 | 14 | * accompanied this code). |
| aoqi@0 | 15 | * |
| aoqi@0 | 16 | * You should have received a copy of the GNU General Public License version |
| aoqi@0 | 17 | * 2 along with this work; if not, write to the Free Software Foundation, |
| aoqi@0 | 18 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| aoqi@0 | 19 | * |
| aoqi@0 | 20 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| aoqi@0 | 21 | * or visit www.oracle.com if you need additional information or have any |
| aoqi@0 | 22 | * questions. |
| aoqi@0 | 23 | * |
| aoqi@0 | 24 | */ |
| aoqi@0 | 25 | |
| aoqi@0 | 26 | #ifndef SHARE_VM_SHARK_SHARKMEMORYMANAGER_HPP |
| aoqi@0 | 27 | #define SHARE_VM_SHARK_SHARKMEMORYMANAGER_HPP |
| aoqi@0 | 28 | |
| aoqi@0 | 29 | #include "shark/llvmHeaders.hpp" |
| aoqi@0 | 30 | #include "shark/sharkEntry.hpp" |
| aoqi@0 | 31 | |
| aoqi@0 | 32 | // SharkMemoryManager wraps the LLVM JIT Memory Manager. We could use |
| aoqi@0 | 33 | // this to run our own memory allocation policies, but for now all we |
| aoqi@0 | 34 | // use it for is figuring out where the resulting native code ended up. |
| aoqi@0 | 35 | |
| aoqi@0 | 36 | class SharkMemoryManager : public llvm::JITMemoryManager { |
| aoqi@0 | 37 | public: |
| aoqi@0 | 38 | SharkMemoryManager() |
| aoqi@0 | 39 | : _mm(llvm::JITMemoryManager::CreateDefaultMemManager()) {} |
| aoqi@0 | 40 | |
| aoqi@0 | 41 | private: |
| aoqi@0 | 42 | llvm::JITMemoryManager* _mm; |
| aoqi@0 | 43 | |
| aoqi@0 | 44 | private: |
| aoqi@0 | 45 | llvm::JITMemoryManager* mm() const { |
| aoqi@0 | 46 | return _mm; |
| aoqi@0 | 47 | } |
| aoqi@0 | 48 | |
| aoqi@0 | 49 | private: |
| aoqi@0 | 50 | std::map<const llvm::Function*, SharkEntry*> _entry_map; |
| aoqi@0 | 51 | |
| aoqi@0 | 52 | public: |
| aoqi@0 | 53 | void set_entry_for_function(const llvm::Function* function, |
| aoqi@0 | 54 | SharkEntry* entry) { |
| aoqi@0 | 55 | _entry_map[function] = entry; |
| aoqi@0 | 56 | } |
| aoqi@0 | 57 | SharkEntry* get_entry_for_function(const llvm::Function* function) { |
| aoqi@0 | 58 | return _entry_map[function]; |
| aoqi@0 | 59 | } |
| aoqi@0 | 60 | |
| aoqi@0 | 61 | public: |
| aoqi@0 | 62 | void AllocateGOT(); |
| aoqi@0 | 63 | unsigned char* getGOTBase() const; |
| aoqi@0 | 64 | unsigned char* allocateStub(const llvm::GlobalValue* F, |
| aoqi@0 | 65 | unsigned StubSize, |
| aoqi@0 | 66 | unsigned Alignment); |
| aoqi@0 | 67 | unsigned char* startFunctionBody(const llvm::Function* F, |
| aoqi@0 | 68 | uintptr_t& ActualSize); |
| aoqi@0 | 69 | void endFunctionBody(const llvm::Function* F, |
| aoqi@0 | 70 | unsigned char* FunctionStart, |
| aoqi@0 | 71 | unsigned char* FunctionEnd); |
| aoqi@0 | 72 | |
| aoqi@0 | 73 | void *getPointerToNamedFunction(const std::string &Name, bool AbortOnFailure = true); |
| aoqi@0 | 74 | void setPoisonMemory(bool); |
| aoqi@0 | 75 | uint8_t* allocateGlobal(uintptr_t, unsigned int); |
| aoqi@0 | 76 | void setMemoryWritable(); |
| aoqi@0 | 77 | void setMemoryExecutable(); |
| aoqi@0 | 78 | void deallocateFunctionBody(void *ptr); |
| aoqi@0 | 79 | unsigned char *allocateSpace(intptr_t Size, |
| aoqi@0 | 80 | unsigned int Alignment); |
| aoqi@0 | 81 | |
| aoqi@0 | 82 | #if SHARK_LLVM_VERSION <= 32 |
| aoqi@0 | 83 | uint8_t *allocateCodeSection(uintptr_t Size, unsigned Alignment, unsigned SectionID); |
| aoqi@0 | 84 | uint8_t *allocateDataSection(uintptr_t Size, unsigned Alignment, unsigned SectionID); |
| aoqi@0 | 85 | unsigned char* startExceptionTable(const llvm::Function* F, |
| aoqi@0 | 86 | uintptr_t& ActualSize); |
| aoqi@0 | 87 | void deallocateExceptionTable(void *ptr); |
| aoqi@0 | 88 | void endExceptionTable(const llvm::Function* F, |
| aoqi@0 | 89 | unsigned char* TableStart, |
| aoqi@0 | 90 | unsigned char* TableEnd, |
| aoqi@0 | 91 | unsigned char* FrameRegister); |
| aoqi@0 | 92 | #else |
| aoqi@0 | 93 | uint8_t *allocateCodeSection(uintptr_t Size, unsigned Alignment, unsigned SectionID, llvm::StringRef SectionName); |
| aoqi@0 | 94 | uint8_t *allocateDataSection(uintptr_t Size, unsigned Alignment, unsigned SectionID, llvm::StringRef SectionName, bool IsReadOnly); |
| aoqi@0 | 95 | bool finalizeMemory(std::string *ErrMsg = 0); |
| aoqi@0 | 96 | #endif |
| aoqi@0 | 97 | |
| aoqi@0 | 98 | }; |
| aoqi@0 | 99 | |
| aoqi@0 | 100 | #endif // SHARE_VM_SHARK_SHARKMEMORYMANAGER_HPP |
