mirror of
https://github.com/RPCS3/llvm-mirror.git
synced 2024-12-23 12:08:25 +00:00
354 lines
11 KiB
C++
354 lines
11 KiB
C++
//===-- llvm/CodeGen/BinaryObject.h - Binary Object. -----------*- C++ -*-===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file defines a Binary Object Aka. "blob" for holding data from code
|
|
// generators, ready for data to the object module code writters.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#ifndef LLVM_CODEGEN_BINARYOBJECT_H
|
|
#define LLVM_CODEGEN_BINARYOBJECT_H
|
|
|
|
#include "llvm/CodeGen/MachineRelocation.h"
|
|
#include "llvm/Support/DataTypes.h"
|
|
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
namespace llvm {
|
|
|
|
typedef std::vector<uint8_t> BinaryData;
|
|
|
|
class BinaryObject {
|
|
protected:
|
|
std::string Name;
|
|
bool IsLittleEndian;
|
|
bool Is64Bit;
|
|
BinaryData Data;
|
|
std::vector<MachineRelocation> Relocations;
|
|
|
|
public:
|
|
/// Constructors and destructor
|
|
BinaryObject() {}
|
|
|
|
BinaryObject(bool isLittleEndian, bool is64Bit)
|
|
: IsLittleEndian(isLittleEndian), Is64Bit(is64Bit) {}
|
|
|
|
BinaryObject(const std::string &name, bool isLittleEndian, bool is64Bit)
|
|
: Name(name), IsLittleEndian(isLittleEndian), Is64Bit(is64Bit) {}
|
|
|
|
~BinaryObject() {}
|
|
|
|
/// getName - get name of BinaryObject
|
|
inline std::string getName() const { return Name; }
|
|
|
|
/// get size of binary data
|
|
size_t size() const {
|
|
return Data.size();
|
|
}
|
|
|
|
/// get binary data
|
|
BinaryData& getData() {
|
|
return Data;
|
|
}
|
|
|
|
/// get machine relocations
|
|
const std::vector<MachineRelocation>& getRelocations() const {
|
|
return Relocations;
|
|
}
|
|
|
|
/// hasRelocations - Return true if 'Relocations' is not empty
|
|
bool hasRelocations() const {
|
|
return !Relocations.empty();
|
|
}
|
|
|
|
/// emitZeros - This callback is invoked to emit a arbitrary number
|
|
/// of zero bytes to the data stream.
|
|
inline void emitZeros(unsigned Size) {
|
|
for (unsigned i=0; i < Size; ++i)
|
|
emitByte(0);
|
|
}
|
|
|
|
/// emitByte - This callback is invoked when a byte needs to be
|
|
/// written to the data stream.
|
|
inline void emitByte(uint8_t B) {
|
|
Data.push_back(B);
|
|
}
|
|
|
|
/// emitWord16 - This callback is invoked when a 16-bit word needs to be
|
|
/// written to the data stream in correct endian format and correct size.
|
|
inline void emitWord16(uint16_t W) {
|
|
if (IsLittleEndian)
|
|
emitWord16LE(W);
|
|
else
|
|
emitWord16BE(W);
|
|
}
|
|
|
|
/// emitWord16LE - This callback is invoked when a 16-bit word needs to be
|
|
/// written to the data stream in correct endian format and correct size.
|
|
inline void emitWord16LE(uint16_t W) {
|
|
Data.push_back((uint8_t)(W >> 0));
|
|
Data.push_back((uint8_t)(W >> 8));
|
|
}
|
|
|
|
/// emitWord16BE - This callback is invoked when a 16-bit word needs to be
|
|
/// written to the data stream in correct endian format and correct size.
|
|
inline void emitWord16BE(uint16_t W) {
|
|
Data.push_back((uint8_t)(W >> 8));
|
|
Data.push_back((uint8_t)(W >> 0));
|
|
}
|
|
|
|
/// emitWord - This callback is invoked when a word needs to be
|
|
/// written to the data stream in correct endian format and correct size.
|
|
inline void emitWord(uint64_t W) {
|
|
if (!Is64Bit)
|
|
emitWord32(W);
|
|
else
|
|
emitWord64(W);
|
|
}
|
|
|
|
/// emitWord32 - This callback is invoked when a 32-bit word needs to be
|
|
/// written to the data stream in correct endian format.
|
|
inline void emitWord32(uint32_t W) {
|
|
if (IsLittleEndian)
|
|
emitWordLE(W);
|
|
else
|
|
emitWordBE(W);
|
|
}
|
|
|
|
/// emitWord64 - This callback is invoked when a 32-bit word needs to be
|
|
/// written to the data stream in correct endian format.
|
|
inline void emitWord64(uint64_t W) {
|
|
if (IsLittleEndian)
|
|
emitDWordLE(W);
|
|
else
|
|
emitDWordBE(W);
|
|
}
|
|
|
|
/// emitWord64 - This callback is invoked when a x86_fp80 needs to be
|
|
/// written to the data stream in correct endian format.
|
|
inline void emitWordFP80(const uint64_t *W, unsigned PadSize) {
|
|
if (IsLittleEndian) {
|
|
emitWord64(W[0]);
|
|
emitWord16(W[1]);
|
|
} else {
|
|
emitWord16(W[1]);
|
|
emitWord64(W[0]);
|
|
}
|
|
emitZeros(PadSize);
|
|
}
|
|
|
|
/// emitWordLE - This callback is invoked when a 32-bit word needs to be
|
|
/// written to the data stream in little-endian format.
|
|
inline void emitWordLE(uint32_t W) {
|
|
Data.push_back((uint8_t)(W >> 0));
|
|
Data.push_back((uint8_t)(W >> 8));
|
|
Data.push_back((uint8_t)(W >> 16));
|
|
Data.push_back((uint8_t)(W >> 24));
|
|
}
|
|
|
|
/// emitWordBE - This callback is invoked when a 32-bit word needs to be
|
|
/// written to the data stream in big-endian format.
|
|
///
|
|
inline void emitWordBE(uint32_t W) {
|
|
Data.push_back((uint8_t)(W >> 24));
|
|
Data.push_back((uint8_t)(W >> 16));
|
|
Data.push_back((uint8_t)(W >> 8));
|
|
Data.push_back((uint8_t)(W >> 0));
|
|
}
|
|
|
|
/// emitDWordLE - This callback is invoked when a 64-bit word needs to be
|
|
/// written to the data stream in little-endian format.
|
|
inline void emitDWordLE(uint64_t W) {
|
|
Data.push_back((uint8_t)(W >> 0));
|
|
Data.push_back((uint8_t)(W >> 8));
|
|
Data.push_back((uint8_t)(W >> 16));
|
|
Data.push_back((uint8_t)(W >> 24));
|
|
Data.push_back((uint8_t)(W >> 32));
|
|
Data.push_back((uint8_t)(W >> 40));
|
|
Data.push_back((uint8_t)(W >> 48));
|
|
Data.push_back((uint8_t)(W >> 56));
|
|
}
|
|
|
|
/// emitDWordBE - This callback is invoked when a 64-bit word needs to be
|
|
/// written to the data stream in big-endian format.
|
|
inline void emitDWordBE(uint64_t W) {
|
|
Data.push_back((uint8_t)(W >> 56));
|
|
Data.push_back((uint8_t)(W >> 48));
|
|
Data.push_back((uint8_t)(W >> 40));
|
|
Data.push_back((uint8_t)(W >> 32));
|
|
Data.push_back((uint8_t)(W >> 24));
|
|
Data.push_back((uint8_t)(W >> 16));
|
|
Data.push_back((uint8_t)(W >> 8));
|
|
Data.push_back((uint8_t)(W >> 0));
|
|
}
|
|
|
|
/// fixByte - This callback is invoked when a byte needs to be
|
|
/// fixup the buffer.
|
|
inline void fixByte(uint8_t B, uint32_t offset) {
|
|
Data[offset] = B;
|
|
}
|
|
|
|
/// fixWord16 - This callback is invoked when a 16-bit word needs to
|
|
/// fixup the data stream in correct endian format.
|
|
inline void fixWord16(uint16_t W, uint32_t offset) {
|
|
if (IsLittleEndian)
|
|
fixWord16LE(W, offset);
|
|
else
|
|
fixWord16BE(W, offset);
|
|
}
|
|
|
|
/// emitWord16LE - This callback is invoked when a 16-bit word needs to
|
|
/// fixup the data stream in little endian format.
|
|
inline void fixWord16LE(uint16_t W, uint32_t offset) {
|
|
Data[offset] = (uint8_t)(W >> 0);
|
|
Data[++offset] = (uint8_t)(W >> 8);
|
|
}
|
|
|
|
/// fixWord16BE - This callback is invoked when a 16-bit word needs to
|
|
/// fixup data stream in big endian format.
|
|
inline void fixWord16BE(uint16_t W, uint32_t offset) {
|
|
Data[offset] = (uint8_t)(W >> 8);
|
|
Data[++offset] = (uint8_t)(W >> 0);
|
|
}
|
|
|
|
/// emitWord - This callback is invoked when a word needs to
|
|
/// fixup the data in correct endian format and correct size.
|
|
inline void fixWord(uint64_t W, uint32_t offset) {
|
|
if (!Is64Bit)
|
|
fixWord32(W, offset);
|
|
else
|
|
fixWord64(W, offset);
|
|
}
|
|
|
|
/// fixWord32 - This callback is invoked when a 32-bit word needs to
|
|
/// fixup the data in correct endian format.
|
|
inline void fixWord32(uint32_t W, uint32_t offset) {
|
|
if (IsLittleEndian)
|
|
fixWord32LE(W, offset);
|
|
else
|
|
fixWord32BE(W, offset);
|
|
}
|
|
|
|
/// fixWord32LE - This callback is invoked when a 32-bit word needs to
|
|
/// fixup the data in little endian format.
|
|
inline void fixWord32LE(uint32_t W, uint32_t offset) {
|
|
Data[offset] = (uint8_t)(W >> 0);
|
|
Data[++offset] = (uint8_t)(W >> 8);
|
|
Data[++offset] = (uint8_t)(W >> 16);
|
|
Data[++offset] = (uint8_t)(W >> 24);
|
|
}
|
|
|
|
/// fixWord32BE - This callback is invoked when a 32-bit word needs to
|
|
/// fixup the data in big endian format.
|
|
inline void fixWord32BE(uint32_t W, uint32_t offset) {
|
|
Data[offset] = (uint8_t)(W >> 24);
|
|
Data[++offset] = (uint8_t)(W >> 16);
|
|
Data[++offset] = (uint8_t)(W >> 8);
|
|
Data[++offset] = (uint8_t)(W >> 0);
|
|
}
|
|
|
|
/// fixWord64 - This callback is invoked when a 64-bit word needs to
|
|
/// fixup the data in correct endian format.
|
|
inline void fixWord64(uint64_t W, uint32_t offset) {
|
|
if (IsLittleEndian)
|
|
fixWord64LE(W, offset);
|
|
else
|
|
fixWord64BE(W, offset);
|
|
}
|
|
|
|
/// fixWord64BE - This callback is invoked when a 64-bit word needs to
|
|
/// fixup the data in little endian format.
|
|
inline void fixWord64LE(uint64_t W, uint32_t offset) {
|
|
Data[offset] = (uint8_t)(W >> 0);
|
|
Data[++offset] = (uint8_t)(W >> 8);
|
|
Data[++offset] = (uint8_t)(W >> 16);
|
|
Data[++offset] = (uint8_t)(W >> 24);
|
|
Data[++offset] = (uint8_t)(W >> 32);
|
|
Data[++offset] = (uint8_t)(W >> 40);
|
|
Data[++offset] = (uint8_t)(W >> 48);
|
|
Data[++offset] = (uint8_t)(W >> 56);
|
|
}
|
|
|
|
/// fixWord64BE - This callback is invoked when a 64-bit word needs to
|
|
/// fixup the data in big endian format.
|
|
inline void fixWord64BE(uint64_t W, uint32_t offset) {
|
|
Data[offset] = (uint8_t)(W >> 56);
|
|
Data[++offset] = (uint8_t)(W >> 48);
|
|
Data[++offset] = (uint8_t)(W >> 40);
|
|
Data[++offset] = (uint8_t)(W >> 32);
|
|
Data[++offset] = (uint8_t)(W >> 24);
|
|
Data[++offset] = (uint8_t)(W >> 16);
|
|
Data[++offset] = (uint8_t)(W >> 8);
|
|
Data[++offset] = (uint8_t)(W >> 0);
|
|
}
|
|
|
|
/// emitAlignment - Pad the data to the specified alignment.
|
|
void emitAlignment(unsigned Alignment, uint8_t fill = 0) {
|
|
if (Alignment <= 1) return;
|
|
unsigned PadSize = -Data.size() & (Alignment-1);
|
|
for (unsigned i = 0; i<PadSize; ++i)
|
|
Data.push_back(fill);
|
|
}
|
|
|
|
/// emitULEB128Bytes - This callback is invoked when a ULEB128 needs to be
|
|
/// written to the data stream.
|
|
void emitULEB128Bytes(uint64_t Value) {
|
|
do {
|
|
uint8_t Byte = (uint8_t)(Value & 0x7f);
|
|
Value >>= 7;
|
|
if (Value) Byte |= 0x80;
|
|
emitByte(Byte);
|
|
} while (Value);
|
|
}
|
|
|
|
/// emitSLEB128Bytes - This callback is invoked when a SLEB128 needs to be
|
|
/// written to the data stream.
|
|
void emitSLEB128Bytes(int64_t Value) {
|
|
int Sign = Value >> (8 * sizeof(Value) - 1);
|
|
bool IsMore;
|
|
|
|
do {
|
|
uint8_t Byte = (uint8_t)(Value & 0x7f);
|
|
Value >>= 7;
|
|
IsMore = Value != Sign || ((Byte ^ Sign) & 0x40) != 0;
|
|
if (IsMore) Byte |= 0x80;
|
|
emitByte(Byte);
|
|
} while (IsMore);
|
|
}
|
|
|
|
/// emitString - This callback is invoked when a String needs to be
|
|
/// written to the data stream.
|
|
void emitString(const std::string &String) {
|
|
for (unsigned i = 0, N = static_cast<unsigned>(String.size()); i<N; ++i) {
|
|
unsigned char C = String[i];
|
|
emitByte(C);
|
|
}
|
|
emitByte(0);
|
|
}
|
|
|
|
/// getCurrentPCOffset - Return the offset from the start of the emitted
|
|
/// buffer that we are currently writing to.
|
|
uintptr_t getCurrentPCOffset() const {
|
|
return Data.size();
|
|
}
|
|
|
|
/// addRelocation - Whenever a relocatable address is needed, it should be
|
|
/// noted with this interface.
|
|
void addRelocation(const MachineRelocation& relocation) {
|
|
Relocations.push_back(relocation);
|
|
}
|
|
|
|
};
|
|
|
|
} // end namespace llvm
|
|
|
|
#endif
|
|
|