blob: 291b2d6fb8af24551a1b04e5208503dc78d5606a (
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
|
//===- lib/ReaderWriter/ELF/Hexagon/HexagonExecutableWriter.h -------------===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef HEXAGON_EXECUTABLE_WRITER_H
#define HEXAGON_EXECUTABLE_WRITER_H
#include "HexagonExecutableAtoms.h"
#include "HexagonLinkingContext.h"
#include "HexagonELFWriters.h"
#include "ExecutableWriter.h"
namespace lld {
namespace elf {
template <typename ELFT> class HexagonTargetLayout;
template <class ELFT>
class HexagonExecutableWriter : public ExecutableWriter<ELFT>,
public HexagonELFWriter<ELFT> {
public:
HexagonExecutableWriter(HexagonLinkingContext &context,
HexagonTargetLayout<ELFT> &layout);
protected:
// Add any runtime files and their atoms to the output
virtual bool createImplicitFiles(std::vector<std::unique_ptr<File>> &);
virtual void finalizeDefaultAtomValues();
virtual error_code setELFHeader() {
ExecutableWriter<ELFT>::setELFHeader();
HexagonELFWriter<ELFT>::setELFHeader(*this->_elfHeader);
return error_code::success();
}
private:
void addDefaultAtoms() {
_hexagonRuntimeFile->addAbsoluteAtom("_SDA_BASE_");
if (this->_context.isDynamic()) {
_hexagonRuntimeFile->addAbsoluteAtom("_GLOBAL_OFFSET_TABLE_");
_hexagonRuntimeFile->addAbsoluteAtom("_DYNAMIC");
}
}
HexagonLinkingContext &_hexagonLinkingContext;
HexagonTargetLayout<ELFT> &_hexagonTargetLayout;
std::unique_ptr<HexagonRuntimeFile<ELFT>> _hexagonRuntimeFile;
};
template <class ELFT>
HexagonExecutableWriter<ELFT>::HexagonExecutableWriter(
HexagonLinkingContext &context, HexagonTargetLayout<ELFT> &layout)
: ExecutableWriter<ELFT>(context, layout),
HexagonELFWriter<ELFT>(context, layout), _hexagonLinkingContext(context),
_hexagonTargetLayout(layout),
_hexagonRuntimeFile(new HexagonRuntimeFile<ELFT>(context)) {}
template <class ELFT>
bool HexagonExecutableWriter<ELFT>::createImplicitFiles(
std::vector<std::unique_ptr<File>> &result) {
ExecutableWriter<ELFT>::createImplicitFiles(result);
// Add the default atoms as defined for hexagon
addDefaultAtoms();
result.push_back(std::move(_hexagonRuntimeFile));
return true;
}
template <class ELFT>
void HexagonExecutableWriter<ELFT>::finalizeDefaultAtomValues() {
// Finalize the atom values that are part of the parent.
ExecutableWriter<ELFT>::finalizeDefaultAtomValues();
auto sdabaseAtomIter = _hexagonTargetLayout.findAbsoluteAtom("_SDA_BASE_");
(*sdabaseAtomIter)->_virtualAddr =
_hexagonTargetLayout.getSDataSection()->virtualAddr();
HexagonELFWriter<ELFT>::finalizeHexagonRuntimeAtomValues();
}
} // namespace elf
} // namespace lld
#endif // HEXAGON_EXECUTABLE_WRITER_H
|
