|
1692
|
1 /*
|
|
1972
|
2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
|
|
1692
|
3 * Copyright 2009 Red Hat, Inc.
|
|
|
4 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
|
|
|
5 *
|
|
|
6 * This code is free software; you can redistribute it and/or modify it
|
|
|
7 * under the terms of the GNU General Public License version 2 only, as
|
|
|
8 * published by the Free Software Foundation.
|
|
|
9 *
|
|
|
10 * This code is distributed in the hope that it will be useful, but WITHOUT
|
|
|
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
|
|
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
|
|
13 * version 2 for more details (a copy is included in the LICENSE file that
|
|
|
14 * accompanied this code).
|
|
|
15 *
|
|
|
16 * You should have received a copy of the GNU General Public License version
|
|
|
17 * 2 along with this work; if not, write to the Free Software Foundation,
|
|
|
18 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
|
19 *
|
|
|
20 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
|
|
|
21 * or visit www.oracle.com if you need additional information or have any
|
|
|
22 * questions.
|
|
|
23 *
|
|
|
24 */
|
|
|
25
|
|
1972
|
26 #ifndef SHARE_VM_SHARK_SHARKMEMORYMANAGER_HPP
|
|
|
27 #define SHARE_VM_SHARK_SHARKMEMORYMANAGER_HPP
|
|
|
28
|
|
|
29 #include "shark/llvmHeaders.hpp"
|
|
|
30 #include "shark/sharkEntry.hpp"
|
|
|
31
|
|
1692
|
32 // SharkMemoryManager wraps the LLVM JIT Memory Manager. We could use
|
|
|
33 // this to run our own memory allocation policies, but for now all we
|
|
|
34 // use it for is figuring out where the resulting native code ended up.
|
|
|
35
|
|
|
36 class SharkMemoryManager : public llvm::JITMemoryManager {
|
|
|
37 public:
|
|
|
38 SharkMemoryManager()
|
|
|
39 : _mm(llvm::JITMemoryManager::CreateDefaultMemManager()) {}
|
|
|
40
|
|
|
41 private:
|
|
|
42 llvm::JITMemoryManager* _mm;
|
|
|
43
|
|
|
44 private:
|
|
|
45 llvm::JITMemoryManager* mm() const {
|
|
|
46 return _mm;
|
|
|
47 }
|
|
|
48
|
|
|
49 private:
|
|
|
50 std::map<const llvm::Function*, SharkEntry*> _entry_map;
|
|
|
51
|
|
|
52 public:
|
|
|
53 void set_entry_for_function(const llvm::Function* function,
|
|
|
54 SharkEntry* entry) {
|
|
|
55 _entry_map[function] = entry;
|
|
|
56 }
|
|
|
57 SharkEntry* get_entry_for_function(const llvm::Function* function) {
|
|
|
58 return _entry_map[function];
|
|
|
59 }
|
|
|
60
|
|
|
61 public:
|
|
|
62 void AllocateGOT();
|
|
|
63 unsigned char* getGOTBase() const;
|
|
|
64 unsigned char* allocateStub(const llvm::GlobalValue* F,
|
|
|
65 unsigned StubSize,
|
|
|
66 unsigned Alignment);
|
|
|
67 unsigned char* startFunctionBody(const llvm::Function* F,
|
|
|
68 uintptr_t& ActualSize);
|
|
|
69 void endFunctionBody(const llvm::Function* F,
|
|
|
70 unsigned char* FunctionStart,
|
|
|
71 unsigned char* FunctionEnd);
|
|
|
72 unsigned char* startExceptionTable(const llvm::Function* F,
|
|
|
73 uintptr_t& ActualSize);
|
|
|
74 void endExceptionTable(const llvm::Function* F,
|
|
|
75 unsigned char* TableStart,
|
|
|
76 unsigned char* TableEnd,
|
|
|
77 unsigned char* FrameRegister);
|
|
|
78 #if SHARK_LLVM_VERSION < 27
|
|
|
79 void* getDlsymTable() const;
|
|
|
80 void SetDlsymTable(void *ptr);
|
|
|
81 #endif
|
|
|
82 void setPoisonMemory(bool);
|
|
|
83 uint8_t* allocateGlobal(uintptr_t, unsigned int);
|
|
|
84 void setMemoryWritable();
|
|
|
85 void setMemoryExecutable();
|
|
|
86 #if SHARK_LLVM_VERSION >= 27
|
|
|
87 void deallocateExceptionTable(void *ptr);
|
|
|
88 void deallocateFunctionBody(void *ptr);
|
|
|
89 #else
|
|
|
90 void deallocateMemForFunction(const llvm::Function* F);
|
|
|
91 #endif
|
|
|
92 unsigned char *allocateSpace(intptr_t Size,
|
|
|
93 unsigned int Alignment);
|
|
|
94 };
|
|
1972
|
95
|
|
|
96 #endif // SHARE_VM_SHARK_SHARKMEMORYMANAGER_HPP
|
