blob: 263f08f47f7e9c1f4026ac9806085817a6e1b1f6 (
plain)
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
|
/*
* ========================================================
*
* HCore
* Copyright Mahrouss Logic, all rights reserved.
*
* ========================================================
*/
#ifndef __KERNELKIT_SHARED_OBJECT_HXX__
#define __KERNELKIT_SHARED_OBJECT_HXX__
#include <KernelKit/Loader.hpp>
#include <KernelKit/PEF.hpp>
#include <KernelKit/PEFCodeManager.hxx>
#include <NewKit/Defines.hpp>
namespace HCore {
/// @brief Pure implementation, missing method/function handler.
extern "C" void __mh_purecall(void);
/**
* @brief Shared Library class
* Load library from this class
*/
class SharedObject final {
public:
struct SharedObjectTraits final {
VoidPtr fImageObject;
VoidPtr fImageEntrypointOffset;
};
public:
explicit SharedObject() = default;
~SharedObject() = default;
public:
HCORE_COPY_DEFAULT(SharedObject);
private:
SharedObjectTraits *fMounted{nullptr};
public:
SharedObjectTraits **GetAddressOf() { return &fMounted; }
SharedObjectTraits *Get() { return fMounted; }
public:
void Mount(SharedObjectTraits *to_mount) {
if (!to_mount || !to_mount->fImageObject) return;
fMounted = to_mount;
if (fLoader && to_mount) {
delete fLoader;
fLoader = nullptr;
}
if (!fLoader) {
fLoader = new PEFLoader(fMounted->fImageObject);
}
}
void Unmount() {
if (fMounted) fMounted = nullptr;
};
template <typename SymbolType>
SymbolType Load(const char *symbol_name, SizeT len, Int32 kind) {
if (symbol_name == nullptr || *symbol_name == 0) return nullptr;
if (len > kPathLen || len < 1) return nullptr;
auto ret =
reinterpret_cast<SymbolType>(fLoader->FindSymbol(symbol_name, kind));
if (!ret) {
if (kind == kPefCode) return (VoidPtr)__mh_purecall;
return nullptr;
}
return ret;
}
private:
PEFLoader *fLoader{nullptr};
};
typedef SharedObject *SharedObjectPtr;
} // namespace HCore
#endif /* ifndef __KERNELKIT_SHARED_OBJECT_HXX__ */
|
