1 /*
2 * Copyright (c) 1999, 2007, Oracle and/or its affiliates. All rights reserved.
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
26 // SharkMemoryManager wraps the LLVM JIT Memory Manager. We could use
27 // this to run our own memory allocation policies, but for now all we
28 // use it for is figuring out where the resulting native code ended up.
29
30 class SharkMemoryManager : public llvm::JITMemoryManager {
31 public:
32 SharkMemoryManager()
33 : _mm(llvm::JITMemoryManager::CreateDefaultMemManager()) {}
34
35 private:
36 llvm::JITMemoryManager* _mm;
37
38 private:
39 llvm::JITMemoryManager* mm() const {
40 return _mm;
41 }
42
43 private:
44 std::map<const llvm::Function*, SharkEntry*> _entry_map;
45
69 unsigned char* TableStart,
70 unsigned char* TableEnd,
71 unsigned char* FrameRegister);
72 #if SHARK_LLVM_VERSION < 27
73 void* getDlsymTable() const;
74 void SetDlsymTable(void *ptr);
75 #endif
76 void setPoisonMemory(bool);
77 uint8_t* allocateGlobal(uintptr_t, unsigned int);
78 void setMemoryWritable();
79 void setMemoryExecutable();
80 #if SHARK_LLVM_VERSION >= 27
81 void deallocateExceptionTable(void *ptr);
82 void deallocateFunctionBody(void *ptr);
83 #else
84 void deallocateMemForFunction(const llvm::Function* F);
85 #endif
86 unsigned char *allocateSpace(intptr_t Size,
87 unsigned int Alignment);
88 };
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1 /*
2 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
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
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
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
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 };
95
96 #endif // SHARE_VM_SHARK_SHARKMEMORYMANAGER_HPP
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