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41714c959d
LLDB should guarantee that the strings returned by SBAPI methods live forever. I went through every method that returns a string and made sure that it was added to the ConstString StringPool before returning if it wasn't obvious that it was already doing so. I've also updated the docs to document this behavior. Differential Revision: https://reviews.llvm.org/D150804
624 lines
17 KiB
C++
624 lines
17 KiB
C++
//===-- SBData.cpp --------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/API/SBData.h"
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#include "lldb/API/SBError.h"
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#include "lldb/API/SBStream.h"
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#include "lldb/Utility/Instrumentation.h"
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#include "lldb/Core/DumpDataExtractor.h"
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#include "lldb/Utility/DataBufferHeap.h"
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#include "lldb/Utility/DataExtractor.h"
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#include "lldb/Utility/Stream.h"
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#include <cinttypes>
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#include <memory>
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using namespace lldb;
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using namespace lldb_private;
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SBData::SBData() : m_opaque_sp(new DataExtractor()) {
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LLDB_INSTRUMENT_VA(this);
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}
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SBData::SBData(const lldb::DataExtractorSP &data_sp) : m_opaque_sp(data_sp) {}
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SBData::SBData(const SBData &rhs) : m_opaque_sp(rhs.m_opaque_sp) {
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LLDB_INSTRUMENT_VA(this, rhs);
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}
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const SBData &SBData::operator=(const SBData &rhs) {
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LLDB_INSTRUMENT_VA(this, rhs);
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if (this != &rhs)
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m_opaque_sp = rhs.m_opaque_sp;
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return *this;
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}
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SBData::~SBData() = default;
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void SBData::SetOpaque(const lldb::DataExtractorSP &data_sp) {
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m_opaque_sp = data_sp;
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}
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lldb_private::DataExtractor *SBData::get() const { return m_opaque_sp.get(); }
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lldb_private::DataExtractor *SBData::operator->() const {
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return m_opaque_sp.operator->();
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}
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lldb::DataExtractorSP &SBData::operator*() { return m_opaque_sp; }
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const lldb::DataExtractorSP &SBData::operator*() const { return m_opaque_sp; }
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bool SBData::IsValid() {
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LLDB_INSTRUMENT_VA(this);
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return this->operator bool();
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}
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SBData::operator bool() const {
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LLDB_INSTRUMENT_VA(this);
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return m_opaque_sp.get() != nullptr;
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}
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uint8_t SBData::GetAddressByteSize() {
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LLDB_INSTRUMENT_VA(this);
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uint8_t value = 0;
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if (m_opaque_sp.get())
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value = m_opaque_sp->GetAddressByteSize();
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return value;
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}
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void SBData::SetAddressByteSize(uint8_t addr_byte_size) {
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LLDB_INSTRUMENT_VA(this, addr_byte_size);
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if (m_opaque_sp.get())
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m_opaque_sp->SetAddressByteSize(addr_byte_size);
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}
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void SBData::Clear() {
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LLDB_INSTRUMENT_VA(this);
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if (m_opaque_sp.get())
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m_opaque_sp->Clear();
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}
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size_t SBData::GetByteSize() {
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LLDB_INSTRUMENT_VA(this);
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size_t value = 0;
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if (m_opaque_sp.get())
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value = m_opaque_sp->GetByteSize();
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return value;
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}
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lldb::ByteOrder SBData::GetByteOrder() {
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LLDB_INSTRUMENT_VA(this);
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lldb::ByteOrder value = eByteOrderInvalid;
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if (m_opaque_sp.get())
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value = m_opaque_sp->GetByteOrder();
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return value;
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}
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void SBData::SetByteOrder(lldb::ByteOrder endian) {
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LLDB_INSTRUMENT_VA(this, endian);
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if (m_opaque_sp.get())
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m_opaque_sp->SetByteOrder(endian);
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}
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float SBData::GetFloat(lldb::SBError &error, lldb::offset_t offset) {
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LLDB_INSTRUMENT_VA(this, error, offset);
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float value = 0;
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if (!m_opaque_sp.get()) {
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error.SetErrorString("no value to read from");
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} else {
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uint32_t old_offset = offset;
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value = m_opaque_sp->GetFloat(&offset);
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if (offset == old_offset)
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error.SetErrorString("unable to read data");
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}
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return value;
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}
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double SBData::GetDouble(lldb::SBError &error, lldb::offset_t offset) {
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LLDB_INSTRUMENT_VA(this, error, offset);
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double value = 0;
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if (!m_opaque_sp.get()) {
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error.SetErrorString("no value to read from");
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} else {
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uint32_t old_offset = offset;
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value = m_opaque_sp->GetDouble(&offset);
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if (offset == old_offset)
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error.SetErrorString("unable to read data");
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}
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return value;
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}
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long double SBData::GetLongDouble(lldb::SBError &error, lldb::offset_t offset) {
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LLDB_INSTRUMENT_VA(this, error, offset);
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long double value = 0;
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if (!m_opaque_sp.get()) {
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error.SetErrorString("no value to read from");
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} else {
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uint32_t old_offset = offset;
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value = m_opaque_sp->GetLongDouble(&offset);
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if (offset == old_offset)
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error.SetErrorString("unable to read data");
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}
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return value;
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}
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lldb::addr_t SBData::GetAddress(lldb::SBError &error, lldb::offset_t offset) {
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LLDB_INSTRUMENT_VA(this, error, offset);
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lldb::addr_t value = 0;
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if (!m_opaque_sp.get()) {
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error.SetErrorString("no value to read from");
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} else {
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uint32_t old_offset = offset;
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value = m_opaque_sp->GetAddress(&offset);
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if (offset == old_offset)
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error.SetErrorString("unable to read data");
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}
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return value;
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}
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uint8_t SBData::GetUnsignedInt8(lldb::SBError &error, lldb::offset_t offset) {
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LLDB_INSTRUMENT_VA(this, error, offset);
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uint8_t value = 0;
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if (!m_opaque_sp.get()) {
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error.SetErrorString("no value to read from");
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} else {
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uint32_t old_offset = offset;
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value = m_opaque_sp->GetU8(&offset);
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if (offset == old_offset)
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error.SetErrorString("unable to read data");
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}
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return value;
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}
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uint16_t SBData::GetUnsignedInt16(lldb::SBError &error, lldb::offset_t offset) {
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LLDB_INSTRUMENT_VA(this, error, offset);
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uint16_t value = 0;
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if (!m_opaque_sp.get()) {
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error.SetErrorString("no value to read from");
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} else {
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uint32_t old_offset = offset;
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value = m_opaque_sp->GetU16(&offset);
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if (offset == old_offset)
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error.SetErrorString("unable to read data");
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}
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return value;
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}
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uint32_t SBData::GetUnsignedInt32(lldb::SBError &error, lldb::offset_t offset) {
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LLDB_INSTRUMENT_VA(this, error, offset);
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uint32_t value = 0;
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if (!m_opaque_sp.get()) {
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error.SetErrorString("no value to read from");
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} else {
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uint32_t old_offset = offset;
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value = m_opaque_sp->GetU32(&offset);
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if (offset == old_offset)
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error.SetErrorString("unable to read data");
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}
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return value;
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}
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uint64_t SBData::GetUnsignedInt64(lldb::SBError &error, lldb::offset_t offset) {
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LLDB_INSTRUMENT_VA(this, error, offset);
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uint64_t value = 0;
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if (!m_opaque_sp.get()) {
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error.SetErrorString("no value to read from");
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} else {
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uint32_t old_offset = offset;
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value = m_opaque_sp->GetU64(&offset);
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if (offset == old_offset)
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error.SetErrorString("unable to read data");
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}
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return value;
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}
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int8_t SBData::GetSignedInt8(lldb::SBError &error, lldb::offset_t offset) {
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LLDB_INSTRUMENT_VA(this, error, offset);
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int8_t value = 0;
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if (!m_opaque_sp.get()) {
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error.SetErrorString("no value to read from");
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} else {
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uint32_t old_offset = offset;
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value = (int8_t)m_opaque_sp->GetMaxS64(&offset, 1);
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if (offset == old_offset)
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error.SetErrorString("unable to read data");
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}
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return value;
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}
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int16_t SBData::GetSignedInt16(lldb::SBError &error, lldb::offset_t offset) {
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LLDB_INSTRUMENT_VA(this, error, offset);
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int16_t value = 0;
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if (!m_opaque_sp.get()) {
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error.SetErrorString("no value to read from");
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} else {
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uint32_t old_offset = offset;
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value = (int16_t)m_opaque_sp->GetMaxS64(&offset, 2);
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if (offset == old_offset)
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error.SetErrorString("unable to read data");
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}
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return value;
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}
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int32_t SBData::GetSignedInt32(lldb::SBError &error, lldb::offset_t offset) {
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LLDB_INSTRUMENT_VA(this, error, offset);
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int32_t value = 0;
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if (!m_opaque_sp.get()) {
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error.SetErrorString("no value to read from");
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} else {
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uint32_t old_offset = offset;
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value = (int32_t)m_opaque_sp->GetMaxS64(&offset, 4);
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if (offset == old_offset)
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error.SetErrorString("unable to read data");
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}
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return value;
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}
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int64_t SBData::GetSignedInt64(lldb::SBError &error, lldb::offset_t offset) {
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LLDB_INSTRUMENT_VA(this, error, offset);
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int64_t value = 0;
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if (!m_opaque_sp.get()) {
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error.SetErrorString("no value to read from");
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} else {
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uint32_t old_offset = offset;
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value = (int64_t)m_opaque_sp->GetMaxS64(&offset, 8);
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if (offset == old_offset)
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error.SetErrorString("unable to read data");
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}
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return value;
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}
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const char *SBData::GetString(lldb::SBError &error, lldb::offset_t offset) {
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LLDB_INSTRUMENT_VA(this, error, offset);
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if (!m_opaque_sp) {
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error.SetErrorString("no value to read from");
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return nullptr;
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}
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lldb::offset_t old_offset = offset;
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const char *value = m_opaque_sp->GetCStr(&offset);
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if (offset == old_offset || value == nullptr) {
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error.SetErrorString("unable to read data");
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return nullptr;
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}
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return ConstString(value).GetCString();
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}
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bool SBData::GetDescription(lldb::SBStream &description,
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lldb::addr_t base_addr) {
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LLDB_INSTRUMENT_VA(this, description, base_addr);
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Stream &strm = description.ref();
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if (m_opaque_sp) {
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DumpDataExtractor(*m_opaque_sp, &strm, 0, lldb::eFormatBytesWithASCII, 1,
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m_opaque_sp->GetByteSize(), 16, base_addr, 0, 0);
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} else
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strm.PutCString("No value");
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return true;
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}
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size_t SBData::ReadRawData(lldb::SBError &error, lldb::offset_t offset,
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void *buf, size_t size) {
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LLDB_INSTRUMENT_VA(this, error, offset, buf, size);
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void *ok = nullptr;
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if (!m_opaque_sp.get()) {
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error.SetErrorString("no value to read from");
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} else {
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uint32_t old_offset = offset;
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ok = m_opaque_sp->GetU8(&offset, buf, size);
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if ((offset == old_offset) || (ok == nullptr))
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error.SetErrorString("unable to read data");
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}
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return ok ? size : 0;
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}
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void SBData::SetData(lldb::SBError &error, const void *buf, size_t size,
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lldb::ByteOrder endian, uint8_t addr_size) {
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LLDB_INSTRUMENT_VA(this, error, buf, size, endian, addr_size);
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if (!m_opaque_sp.get())
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m_opaque_sp = std::make_shared<DataExtractor>(buf, size, endian, addr_size);
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else
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{
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m_opaque_sp->SetData(buf, size, endian);
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m_opaque_sp->SetAddressByteSize(addr_size);
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}
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}
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void SBData::SetDataWithOwnership(lldb::SBError &error, const void *buf,
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size_t size, lldb::ByteOrder endian,
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uint8_t addr_size) {
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LLDB_INSTRUMENT_VA(this, error, buf, size, endian, addr_size);
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lldb::DataBufferSP buffer_sp = std::make_shared<DataBufferHeap>(buf, size);
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if (!m_opaque_sp.get())
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m_opaque_sp = std::make_shared<DataExtractor>(buf, size, endian, addr_size);
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else {
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m_opaque_sp->SetData(buffer_sp);
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m_opaque_sp->SetByteOrder(endian);
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m_opaque_sp->SetAddressByteSize(addr_size);
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}
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}
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bool SBData::Append(const SBData &rhs) {
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LLDB_INSTRUMENT_VA(this, rhs);
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bool value = false;
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if (m_opaque_sp.get() && rhs.m_opaque_sp.get())
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value = m_opaque_sp.get()->Append(*rhs.m_opaque_sp);
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return value;
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}
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lldb::SBData SBData::CreateDataFromCString(lldb::ByteOrder endian,
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uint32_t addr_byte_size,
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const char *data) {
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LLDB_INSTRUMENT_VA(endian, addr_byte_size, data);
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if (!data || !data[0])
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return SBData();
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uint32_t data_len = strlen(data);
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lldb::DataBufferSP buffer_sp(new DataBufferHeap(data, data_len));
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lldb::DataExtractorSP data_sp(
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new DataExtractor(buffer_sp, endian, addr_byte_size));
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SBData ret(data_sp);
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return ret;
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}
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lldb::SBData SBData::CreateDataFromUInt64Array(lldb::ByteOrder endian,
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uint32_t addr_byte_size,
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uint64_t *array,
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size_t array_len) {
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LLDB_INSTRUMENT_VA(endian, addr_byte_size, array, array_len);
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if (!array || array_len == 0)
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return SBData();
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size_t data_len = array_len * sizeof(uint64_t);
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lldb::DataBufferSP buffer_sp(new DataBufferHeap(array, data_len));
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lldb::DataExtractorSP data_sp(
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new DataExtractor(buffer_sp, endian, addr_byte_size));
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SBData ret(data_sp);
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return ret;
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}
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lldb::SBData SBData::CreateDataFromUInt32Array(lldb::ByteOrder endian,
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uint32_t addr_byte_size,
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uint32_t *array,
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size_t array_len) {
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LLDB_INSTRUMENT_VA(endian, addr_byte_size, array, array_len);
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if (!array || array_len == 0)
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return SBData();
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size_t data_len = array_len * sizeof(uint32_t);
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lldb::DataBufferSP buffer_sp(new DataBufferHeap(array, data_len));
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lldb::DataExtractorSP data_sp(
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new DataExtractor(buffer_sp, endian, addr_byte_size));
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SBData ret(data_sp);
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return ret;
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}
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lldb::SBData SBData::CreateDataFromSInt64Array(lldb::ByteOrder endian,
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uint32_t addr_byte_size,
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int64_t *array,
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size_t array_len) {
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LLDB_INSTRUMENT_VA(endian, addr_byte_size, array, array_len);
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if (!array || array_len == 0)
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return SBData();
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size_t data_len = array_len * sizeof(int64_t);
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lldb::DataBufferSP buffer_sp(new DataBufferHeap(array, data_len));
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lldb::DataExtractorSP data_sp(
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new DataExtractor(buffer_sp, endian, addr_byte_size));
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SBData ret(data_sp);
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return ret;
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}
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lldb::SBData SBData::CreateDataFromSInt32Array(lldb::ByteOrder endian,
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uint32_t addr_byte_size,
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int32_t *array,
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size_t array_len) {
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LLDB_INSTRUMENT_VA(endian, addr_byte_size, array, array_len);
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if (!array || array_len == 0)
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return SBData();
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size_t data_len = array_len * sizeof(int32_t);
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lldb::DataBufferSP buffer_sp(new DataBufferHeap(array, data_len));
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lldb::DataExtractorSP data_sp(
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new DataExtractor(buffer_sp, endian, addr_byte_size));
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SBData ret(data_sp);
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return ret;
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}
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lldb::SBData SBData::CreateDataFromDoubleArray(lldb::ByteOrder endian,
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uint32_t addr_byte_size,
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double *array,
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size_t array_len) {
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LLDB_INSTRUMENT_VA(endian, addr_byte_size, array, array_len);
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if (!array || array_len == 0)
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return SBData();
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size_t data_len = array_len * sizeof(double);
|
|
|
|
lldb::DataBufferSP buffer_sp(new DataBufferHeap(array, data_len));
|
|
lldb::DataExtractorSP data_sp(
|
|
new DataExtractor(buffer_sp, endian, addr_byte_size));
|
|
|
|
SBData ret(data_sp);
|
|
|
|
return ret;
|
|
}
|
|
|
|
bool SBData::SetDataFromCString(const char *data) {
|
|
LLDB_INSTRUMENT_VA(this, data);
|
|
|
|
if (!data) {
|
|
return false;
|
|
}
|
|
|
|
size_t data_len = strlen(data);
|
|
|
|
lldb::DataBufferSP buffer_sp(new DataBufferHeap(data, data_len));
|
|
|
|
if (!m_opaque_sp.get())
|
|
m_opaque_sp = std::make_shared<DataExtractor>(buffer_sp, GetByteOrder(),
|
|
GetAddressByteSize());
|
|
else
|
|
m_opaque_sp->SetData(buffer_sp);
|
|
|
|
|
|
return true;
|
|
}
|
|
|
|
bool SBData::SetDataFromUInt64Array(uint64_t *array, size_t array_len) {
|
|
LLDB_INSTRUMENT_VA(this, array, array_len);
|
|
|
|
if (!array || array_len == 0) {
|
|
return false;
|
|
}
|
|
|
|
size_t data_len = array_len * sizeof(uint64_t);
|
|
|
|
lldb::DataBufferSP buffer_sp(new DataBufferHeap(array, data_len));
|
|
|
|
if (!m_opaque_sp.get())
|
|
m_opaque_sp = std::make_shared<DataExtractor>(buffer_sp, GetByteOrder(),
|
|
GetAddressByteSize());
|
|
else
|
|
m_opaque_sp->SetData(buffer_sp);
|
|
|
|
|
|
return true;
|
|
}
|
|
|
|
bool SBData::SetDataFromUInt32Array(uint32_t *array, size_t array_len) {
|
|
LLDB_INSTRUMENT_VA(this, array, array_len);
|
|
|
|
if (!array || array_len == 0) {
|
|
return false;
|
|
}
|
|
|
|
size_t data_len = array_len * sizeof(uint32_t);
|
|
|
|
lldb::DataBufferSP buffer_sp(new DataBufferHeap(array, data_len));
|
|
|
|
if (!m_opaque_sp.get())
|
|
m_opaque_sp = std::make_shared<DataExtractor>(buffer_sp, GetByteOrder(),
|
|
GetAddressByteSize());
|
|
else
|
|
m_opaque_sp->SetData(buffer_sp);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool SBData::SetDataFromSInt64Array(int64_t *array, size_t array_len) {
|
|
LLDB_INSTRUMENT_VA(this, array, array_len);
|
|
|
|
if (!array || array_len == 0) {
|
|
return false;
|
|
}
|
|
|
|
size_t data_len = array_len * sizeof(int64_t);
|
|
|
|
lldb::DataBufferSP buffer_sp(new DataBufferHeap(array, data_len));
|
|
|
|
if (!m_opaque_sp.get())
|
|
m_opaque_sp = std::make_shared<DataExtractor>(buffer_sp, GetByteOrder(),
|
|
GetAddressByteSize());
|
|
else
|
|
m_opaque_sp->SetData(buffer_sp);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool SBData::SetDataFromSInt32Array(int32_t *array, size_t array_len) {
|
|
LLDB_INSTRUMENT_VA(this, array, array_len);
|
|
|
|
if (!array || array_len == 0) {
|
|
return false;
|
|
}
|
|
|
|
size_t data_len = array_len * sizeof(int32_t);
|
|
|
|
lldb::DataBufferSP buffer_sp(new DataBufferHeap(array, data_len));
|
|
|
|
if (!m_opaque_sp.get())
|
|
m_opaque_sp = std::make_shared<DataExtractor>(buffer_sp, GetByteOrder(),
|
|
GetAddressByteSize());
|
|
else
|
|
m_opaque_sp->SetData(buffer_sp);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool SBData::SetDataFromDoubleArray(double *array, size_t array_len) {
|
|
LLDB_INSTRUMENT_VA(this, array, array_len);
|
|
|
|
if (!array || array_len == 0) {
|
|
return false;
|
|
}
|
|
|
|
size_t data_len = array_len * sizeof(double);
|
|
|
|
lldb::DataBufferSP buffer_sp(new DataBufferHeap(array, data_len));
|
|
|
|
if (!m_opaque_sp.get())
|
|
m_opaque_sp = std::make_shared<DataExtractor>(buffer_sp, GetByteOrder(),
|
|
GetAddressByteSize());
|
|
else
|
|
m_opaque_sp->SetData(buffer_sp);
|
|
|
|
return true;
|
|
}
|