1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
|
//===- ObjectTransformLayer.h - Run all objects through functor -*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// Run all objects passed in through a user supplied functor.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_EXECUTIONENGINE_ORC_OBJECTTRANSFORMLAYER_H
#define LLVM_EXECUTIONENGINE_ORC_OBJECTTRANSFORMLAYER_H
#include "llvm/ExecutionEngine/JITSymbol.h"
#include <algorithm>
#include <string>
namespace llvm {
namespace orc {
/// @brief Object mutating layer.
///
/// This layer accepts sets of ObjectFiles (via addObject). It
/// immediately applies the user supplied functor to each object, then adds
/// the set of transformed objects to the layer below.
template <typename BaseLayerT, typename TransformFtor>
class ObjectTransformLayer {
public:
/// @brief Handle to a set of added objects.
using ObjHandleT = typename BaseLayerT::ObjHandleT;
/// @brief Construct an ObjectTransformLayer with the given BaseLayer
ObjectTransformLayer(BaseLayerT &BaseLayer,
TransformFtor Transform = TransformFtor())
: BaseLayer(BaseLayer), Transform(std::move(Transform)) {}
/// @brief Apply the transform functor to each object in the object set, then
/// add the resulting set of objects to the base layer, along with the
/// memory manager and symbol resolver.
///
/// @return A handle for the added objects.
template <typename ObjPtrT, typename MemoryManagerPtrT,
typename SymbolResolverPtrT>
ObjHandleT addObject(ObjPtrT Obj, MemoryManagerPtrT MemMgr,
SymbolResolverPtrT Resolver) {
return BaseLayer.addObject(Transform(std::move(Obj)), std::move(MemMgr),
std::move(Resolver));
}
/// @brief Remove the object set associated with the handle H.
void removeObject(ObjHandleT H) { BaseLayer.removeObject(H); }
/// @brief Search for the given named symbol.
/// @param Name The name of the symbol to search for.
/// @param ExportedSymbolsOnly If true, search only for exported symbols.
/// @return A handle for the given named symbol, if it exists.
JITSymbol findSymbol(const std::string &Name, bool ExportedSymbolsOnly) {
return BaseLayer.findSymbol(Name, ExportedSymbolsOnly);
}
/// @brief Get the address of the given symbol in the context of the set of
/// objects represented by the handle H. This call is forwarded to the
/// base layer's implementation.
/// @param H The handle for the object set to search in.
/// @param Name The name of the symbol to search for.
/// @param ExportedSymbolsOnly If true, search only for exported symbols.
/// @return A handle for the given named symbol, if it is found in the
/// given object set.
JITSymbol findSymbolIn(ObjHandleT H, const std::string &Name,
bool ExportedSymbolsOnly) {
return BaseLayer.findSymbolIn(H, Name, ExportedSymbolsOnly);
}
/// @brief Immediately emit and finalize the object set represented by the
/// given handle.
/// @param H Handle for object set to emit/finalize.
void emitAndFinalize(ObjHandleT H) { BaseLayer.emitAndFinalize(H); }
/// @brief Map section addresses for the objects associated with the handle H.
void mapSectionAddress(ObjHandleT H, const void *LocalAddress,
JITTargetAddress TargetAddr) {
BaseLayer.mapSectionAddress(H, LocalAddress, TargetAddr);
}
/// @brief Access the transform functor directly.
TransformFtor &getTransform() { return Transform; }
/// @brief Access the mumate functor directly.
const TransformFtor &getTransform() const { return Transform; }
private:
BaseLayerT &BaseLayer;
TransformFtor Transform;
};
} // end namespace orc
} // end namespace llvm
#endif // LLVM_EXECUTIONENGINE_ORC_OBJECTTRANSFORMLAYER_H
|
