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Shih-wei Liao4ce024b2012-04-25 03:40:50 -07001/*
2 * Copyright 2010, The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef BCC_EXECUTION_ENGINE_SOURCE_H
18#define BCC_EXECUTION_ENGINE_SOURCE_H
19
20#include <string>
21
22namespace llvm {
23 class Module;
24}
25
26namespace bcc {
27
28class BCCContext;
29
30class Source {
31private:
32 BCCContext &mContext;
33 llvm::Module *mModule;
34
35 // If true, destructor won't destroy the mModule.
36 bool mNoDelete;
37
38private:
39 Source(BCCContext &pContext, llvm::Module &pModule, bool pNoDelete = false);
40
41public:
42 static Source *CreateFromBuffer(BCCContext &pContext,
43 const char *pName,
44 const char *pBitcode,
45 size_t pBitcodeSize);
46
47 static Source *CreateFromFile(BCCContext &pContext,
48 const std::string &pPath);
49
50 // Create a Source object from an existing module. If pNoDelete
51 // is true, destructor won't call delete on the given module.
52 static Source *CreateFromModule(BCCContext &pContext,
53 llvm::Module &pModule,
54 bool pNoDelete = false);
55
56 static Source *CreateEmpty(BCCContext &pContext, const std::string &pName);
57
58 // Merge the current source with pSource. If pPreserveSource is false, pSource
59 // will be destroyed after successfully merged. Return false on error.
60 bool merge(Source &pSource, bool pPreserveSource = false);
61
62 inline BCCContext &getContext()
63 { return mContext; }
64 inline const BCCContext &getContext() const
65 { return mContext; }
66
67 inline llvm::Module &getModule()
68 { return *mModule; }
69 inline const llvm::Module &getModule() const
70 { return *mModule; }
71
72 // Get the "identifier" of the bitcode. This will return the value of pName
73 // when it's created using CreateFromBuffer and pPath if CreateFromFile().
74 const std::string &getIdentifier() const;
75
76 ~Source();
77};
78
79} // namespace bcc
80
81#endif // BCC_EXECUTION_ENGINE_SOURCE_H