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bf9a77305f
This moves the following classes from Core -> Utility. ConstString Error RegularExpression Stream StreamString The goal here is to get lldbUtility into a state where it has no dependendencies except on itself and LLVM, so it can be the starting point at which to start untangling LLDB's dependencies. These are all low level and very widely used classes, and previously lldbUtility had dependencies up to lldbCore in order to use these classes. So moving then down to lldbUtility makes sense from both the short term and long term perspective in solving this problem. Differential Revision: https://reviews.llvm.org/D29427 llvm-svn: 293941
143 lines
3.8 KiB
C++
143 lines
3.8 KiB
C++
//===-- Opcode.cpp ----------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Core/Opcode.h"
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// C Includes
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// C++ Includes
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// Other libraries and framework includes
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#include "llvm/ADT/Triple.h"
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// Project includes
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#include "lldb/Core/ArchSpec.h"
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#include "lldb/Core/DataBufferHeap.h"
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#include "lldb/Core/DataExtractor.h"
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#include "lldb/Host/Endian.h"
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#include "lldb/Utility/Stream.h"
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using namespace lldb;
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using namespace lldb_private;
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int Opcode::Dump(Stream *s, uint32_t min_byte_width) {
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int bytes_written = 0;
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switch (m_type) {
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case Opcode::eTypeInvalid:
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bytes_written = s->PutCString("<invalid>");
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break;
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case Opcode::eType8:
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bytes_written = s->Printf("0x%2.2x", m_data.inst8);
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break;
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case Opcode::eType16:
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bytes_written = s->Printf("0x%4.4x", m_data.inst16);
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break;
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case Opcode::eType16_2:
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case Opcode::eType32:
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bytes_written = s->Printf("0x%8.8x", m_data.inst32);
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break;
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case Opcode::eType64:
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bytes_written = s->Printf("0x%16.16" PRIx64, m_data.inst64);
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break;
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case Opcode::eTypeBytes:
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for (uint32_t i = 0; i < m_data.inst.length; ++i) {
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if (i > 0)
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bytes_written += s->PutChar(' ');
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bytes_written += s->Printf("%2.2x", m_data.inst.bytes[i]);
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}
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break;
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}
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// Add spaces to make sure bytes dispay comes out even in case opcodes
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// aren't all the same size
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if (static_cast<uint32_t>(bytes_written) < min_byte_width)
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bytes_written = s->Printf("%*s", min_byte_width - bytes_written, "");
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return bytes_written;
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}
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lldb::ByteOrder Opcode::GetDataByteOrder() const {
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if (m_byte_order != eByteOrderInvalid) {
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return m_byte_order;
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}
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switch (m_type) {
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case Opcode::eTypeInvalid:
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break;
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case Opcode::eType8:
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case Opcode::eType16:
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case Opcode::eType16_2:
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case Opcode::eType32:
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case Opcode::eType64:
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return endian::InlHostByteOrder();
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case Opcode::eTypeBytes:
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break;
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}
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return eByteOrderInvalid;
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}
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uint32_t Opcode::GetData(DataExtractor &data) const {
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uint32_t byte_size = GetByteSize();
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uint8_t swap_buf[8];
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const void *buf = nullptr;
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if (byte_size > 0) {
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if (!GetEndianSwap()) {
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if (m_type == Opcode::eType16_2) {
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// 32 bit thumb instruction, we need to sizzle this a bit
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swap_buf[0] = m_data.inst.bytes[2];
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swap_buf[1] = m_data.inst.bytes[3];
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swap_buf[2] = m_data.inst.bytes[0];
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swap_buf[3] = m_data.inst.bytes[1];
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buf = swap_buf;
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} else {
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buf = GetOpcodeDataBytes();
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}
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} else {
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switch (m_type) {
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case Opcode::eTypeInvalid:
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break;
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case Opcode::eType8:
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buf = GetOpcodeDataBytes();
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break;
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case Opcode::eType16:
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*(uint16_t *)swap_buf = llvm::ByteSwap_16(m_data.inst16);
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buf = swap_buf;
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break;
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case Opcode::eType16_2:
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swap_buf[0] = m_data.inst.bytes[1];
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swap_buf[1] = m_data.inst.bytes[0];
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swap_buf[2] = m_data.inst.bytes[3];
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swap_buf[3] = m_data.inst.bytes[2];
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buf = swap_buf;
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break;
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case Opcode::eType32:
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*(uint32_t *)swap_buf = llvm::ByteSwap_32(m_data.inst32);
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buf = swap_buf;
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break;
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case Opcode::eType64:
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*(uint32_t *)swap_buf = llvm::ByteSwap_64(m_data.inst64);
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buf = swap_buf;
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break;
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case Opcode::eTypeBytes:
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buf = GetOpcodeDataBytes();
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break;
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}
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}
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}
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if (buf != nullptr) {
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DataBufferSP buffer_sp;
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buffer_sp.reset(new DataBufferHeap(buf, byte_size));
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data.SetByteOrder(GetDataByteOrder());
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data.SetData(buffer_sp);
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return byte_size;
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}
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data.Clear();
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return 0;
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}
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