blob: 8df0c8aee2eb8f23e88427d1857de0538fca9fb9 (
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
|
//===- HexagonRelocationFunction.h ----------------------------------------===//
//
// The LLVM Linker
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
#ifndef LLD_READER_WRITER_ELF_HEXAGON_RELOCATION_FUNCTIONS_H
#define LLD_READER_WRITER_ELF_HEXAGON_RELOCATION_FUNCTIONS_H
namespace lld {
namespace elf {
/// \brief HexagonInstruction which is used to store various values
typedef struct {
const char *insnSyntax;
uint32_t insnMask;
uint32_t insnCmpMask;
uint32_t insnBitMask;
bool isDuplex;
} Instruction;
#include "HexagonV4Encodings.h"
#define FINDV4BITMASK(INSN) findBitMask(*((uint32_t *)INSN), \
insn_encodings_v4, \
sizeof(insn_encodings_v4)/sizeof(Instruction))
/// \brief finds the scatter Bits that need to be used to apply relocations
uint32_t findBitMask(uint32_t insn, Instruction *encodings, int32_t numInsns) {
for (int32_t i = 0; i < numInsns ; i++) {
if (((insn & 0xc000) == 0) && !(encodings[i].isDuplex))
continue;
if (((insn & 0xc000) != 0) && (encodings[i].isDuplex))
continue;
if (((encodings[i].insnMask) & insn) == encodings[i].insnCmpMask)
return encodings[i].insnBitMask;
}
assert(0 && "found unknown instruction");
}
} // elf
} // lld
#endif // LLD_READER_WRITER_ELF_HEXAGON_RELOCATION_FUNCTIONS_H
|
