mirror of
https://github.com/capstone-engine/llvm-capstone.git
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2461061168
plugin. Unfortunately the test is currently XFAILed because of missing changes to the clang driver. Differential Revision: https://reviews.llvm.org/D67124 llvm-svn: 370931
4024 lines
139 KiB
C++
4024 lines
139 KiB
C++
//===-- GDBRemoteCommunicationClient.cpp ------------------------*- C++ -*-===//
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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 "GDBRemoteCommunicationClient.h"
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#include <math.h>
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#include <sys/stat.h>
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#include <numeric>
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#include <sstream>
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#include "lldb/Core/ModuleSpec.h"
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#include "lldb/Host/HostInfo.h"
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#include "lldb/Host/XML.h"
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#include "lldb/Symbol/Symbol.h"
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#include "lldb/Target/MemoryRegionInfo.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Target/UnixSignals.h"
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#include "lldb/Utility/Args.h"
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#include "lldb/Utility/DataBufferHeap.h"
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#include "lldb/Utility/JSON.h"
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#include "lldb/Utility/LLDBAssert.h"
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#include "lldb/Utility/Log.h"
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#include "lldb/Utility/State.h"
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#include "lldb/Utility/StreamString.h"
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#include "ProcessGDBRemote.h"
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#include "ProcessGDBRemoteLog.h"
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#include "lldb/Host/Config.h"
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#include "lldb/Utility/StringExtractorGDBRemote.h"
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#include "llvm/ADT/StringSwitch.h"
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#if defined(HAVE_LIBCOMPRESSION)
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#include <compression.h>
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#endif
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using namespace lldb;
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using namespace lldb_private;
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using namespace lldb_private::process_gdb_remote;
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using namespace std::chrono;
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// GDBRemoteCommunicationClient constructor
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GDBRemoteCommunicationClient::GDBRemoteCommunicationClient()
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: GDBRemoteClientBase("gdb-remote.client", "gdb-remote.client.rx_packet"),
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m_supports_not_sending_acks(eLazyBoolCalculate),
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m_supports_thread_suffix(eLazyBoolCalculate),
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m_supports_threads_in_stop_reply(eLazyBoolCalculate),
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m_supports_vCont_all(eLazyBoolCalculate),
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m_supports_vCont_any(eLazyBoolCalculate),
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m_supports_vCont_c(eLazyBoolCalculate),
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m_supports_vCont_C(eLazyBoolCalculate),
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m_supports_vCont_s(eLazyBoolCalculate),
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m_supports_vCont_S(eLazyBoolCalculate),
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m_qHostInfo_is_valid(eLazyBoolCalculate),
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m_curr_pid_is_valid(eLazyBoolCalculate),
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m_qProcessInfo_is_valid(eLazyBoolCalculate),
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m_qGDBServerVersion_is_valid(eLazyBoolCalculate),
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m_supports_alloc_dealloc_memory(eLazyBoolCalculate),
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m_supports_memory_region_info(eLazyBoolCalculate),
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m_supports_watchpoint_support_info(eLazyBoolCalculate),
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m_supports_detach_stay_stopped(eLazyBoolCalculate),
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m_watchpoints_trigger_after_instruction(eLazyBoolCalculate),
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m_attach_or_wait_reply(eLazyBoolCalculate),
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m_prepare_for_reg_writing_reply(eLazyBoolCalculate),
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m_supports_p(eLazyBoolCalculate), m_supports_x(eLazyBoolCalculate),
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m_avoid_g_packets(eLazyBoolCalculate),
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m_supports_QSaveRegisterState(eLazyBoolCalculate),
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m_supports_qXfer_auxv_read(eLazyBoolCalculate),
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m_supports_qXfer_libraries_read(eLazyBoolCalculate),
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m_supports_qXfer_libraries_svr4_read(eLazyBoolCalculate),
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m_supports_qXfer_features_read(eLazyBoolCalculate),
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m_supports_qXfer_memory_map_read(eLazyBoolCalculate),
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m_supports_augmented_libraries_svr4_read(eLazyBoolCalculate),
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m_supports_jThreadExtendedInfo(eLazyBoolCalculate),
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m_supports_jLoadedDynamicLibrariesInfos(eLazyBoolCalculate),
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m_supports_jGetSharedCacheInfo(eLazyBoolCalculate),
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m_supports_QPassSignals(eLazyBoolCalculate),
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m_supports_error_string_reply(eLazyBoolCalculate),
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m_supports_qProcessInfoPID(true), m_supports_qfProcessInfo(true),
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m_supports_qUserName(true), m_supports_qGroupName(true),
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m_supports_qThreadStopInfo(true), m_supports_z0(true),
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m_supports_z1(true), m_supports_z2(true), m_supports_z3(true),
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m_supports_z4(true), m_supports_QEnvironment(true),
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m_supports_QEnvironmentHexEncoded(true), m_supports_qSymbol(true),
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m_qSymbol_requests_done(false), m_supports_qModuleInfo(true),
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m_supports_jThreadsInfo(true), m_supports_jModulesInfo(true),
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m_curr_pid(LLDB_INVALID_PROCESS_ID), m_curr_tid(LLDB_INVALID_THREAD_ID),
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m_curr_tid_run(LLDB_INVALID_THREAD_ID),
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m_num_supported_hardware_watchpoints(0), m_host_arch(), m_process_arch(),
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m_os_build(), m_os_kernel(), m_hostname(), m_gdb_server_name(),
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m_gdb_server_version(UINT32_MAX), m_default_packet_timeout(0),
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m_max_packet_size(0), m_qSupported_response(),
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m_supported_async_json_packets_is_valid(false),
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m_supported_async_json_packets_sp(), m_qXfer_memory_map(),
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m_qXfer_memory_map_loaded(false) {}
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// Destructor
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GDBRemoteCommunicationClient::~GDBRemoteCommunicationClient() {
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if (IsConnected())
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Disconnect();
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}
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bool GDBRemoteCommunicationClient::HandshakeWithServer(Status *error_ptr) {
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ResetDiscoverableSettings(false);
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// Start the read thread after we send the handshake ack since if we fail to
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// send the handshake ack, there is no reason to continue...
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if (SendAck()) {
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// Wait for any responses that might have been queued up in the remote
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// GDB server and flush them all
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StringExtractorGDBRemote response;
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PacketResult packet_result = PacketResult::Success;
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while (packet_result == PacketResult::Success)
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packet_result = ReadPacket(response, milliseconds(10), false);
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// The return value from QueryNoAckModeSupported() is true if the packet
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// was sent and _any_ response (including UNIMPLEMENTED) was received), or
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// false if no response was received. This quickly tells us if we have a
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// live connection to a remote GDB server...
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if (QueryNoAckModeSupported()) {
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return true;
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} else {
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if (error_ptr)
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error_ptr->SetErrorString("failed to get reply to handshake packet");
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}
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} else {
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if (error_ptr)
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error_ptr->SetErrorString("failed to send the handshake ack");
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}
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return false;
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}
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bool GDBRemoteCommunicationClient::GetEchoSupported() {
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if (m_supports_qEcho == eLazyBoolCalculate) {
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GetRemoteQSupported();
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}
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return m_supports_qEcho == eLazyBoolYes;
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}
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bool GDBRemoteCommunicationClient::GetQPassSignalsSupported() {
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if (m_supports_QPassSignals == eLazyBoolCalculate) {
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GetRemoteQSupported();
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}
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return m_supports_QPassSignals == eLazyBoolYes;
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}
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bool GDBRemoteCommunicationClient::GetAugmentedLibrariesSVR4ReadSupported() {
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if (m_supports_augmented_libraries_svr4_read == eLazyBoolCalculate) {
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GetRemoteQSupported();
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}
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return m_supports_augmented_libraries_svr4_read == eLazyBoolYes;
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}
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bool GDBRemoteCommunicationClient::GetQXferLibrariesSVR4ReadSupported() {
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if (m_supports_qXfer_libraries_svr4_read == eLazyBoolCalculate) {
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GetRemoteQSupported();
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}
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return m_supports_qXfer_libraries_svr4_read == eLazyBoolYes;
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}
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bool GDBRemoteCommunicationClient::GetQXferLibrariesReadSupported() {
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if (m_supports_qXfer_libraries_read == eLazyBoolCalculate) {
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GetRemoteQSupported();
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}
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return m_supports_qXfer_libraries_read == eLazyBoolYes;
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}
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bool GDBRemoteCommunicationClient::GetQXferAuxvReadSupported() {
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if (m_supports_qXfer_auxv_read == eLazyBoolCalculate) {
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GetRemoteQSupported();
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}
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return m_supports_qXfer_auxv_read == eLazyBoolYes;
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}
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bool GDBRemoteCommunicationClient::GetQXferFeaturesReadSupported() {
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if (m_supports_qXfer_features_read == eLazyBoolCalculate) {
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GetRemoteQSupported();
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}
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return m_supports_qXfer_features_read == eLazyBoolYes;
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}
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bool GDBRemoteCommunicationClient::GetQXferMemoryMapReadSupported() {
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if (m_supports_qXfer_memory_map_read == eLazyBoolCalculate) {
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GetRemoteQSupported();
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}
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return m_supports_qXfer_memory_map_read == eLazyBoolYes;
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}
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uint64_t GDBRemoteCommunicationClient::GetRemoteMaxPacketSize() {
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if (m_max_packet_size == 0) {
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GetRemoteQSupported();
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}
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return m_max_packet_size;
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}
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bool GDBRemoteCommunicationClient::QueryNoAckModeSupported() {
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if (m_supports_not_sending_acks == eLazyBoolCalculate) {
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m_send_acks = true;
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m_supports_not_sending_acks = eLazyBoolNo;
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// This is the first real packet that we'll send in a debug session and it
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// may take a little longer than normal to receive a reply. Wait at least
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// 6 seconds for a reply to this packet.
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ScopedTimeout timeout(*this, std::max(GetPacketTimeout(), seconds(6)));
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StringExtractorGDBRemote response;
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if (SendPacketAndWaitForResponse("QStartNoAckMode", response, false) ==
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PacketResult::Success) {
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if (response.IsOKResponse()) {
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m_send_acks = false;
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m_supports_not_sending_acks = eLazyBoolYes;
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}
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return true;
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}
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}
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return false;
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}
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void GDBRemoteCommunicationClient::GetListThreadsInStopReplySupported() {
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if (m_supports_threads_in_stop_reply == eLazyBoolCalculate) {
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m_supports_threads_in_stop_reply = eLazyBoolNo;
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StringExtractorGDBRemote response;
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if (SendPacketAndWaitForResponse("QListThreadsInStopReply", response,
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false) == PacketResult::Success) {
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if (response.IsOKResponse())
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m_supports_threads_in_stop_reply = eLazyBoolYes;
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}
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}
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}
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bool GDBRemoteCommunicationClient::GetVAttachOrWaitSupported() {
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if (m_attach_or_wait_reply == eLazyBoolCalculate) {
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m_attach_or_wait_reply = eLazyBoolNo;
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StringExtractorGDBRemote response;
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if (SendPacketAndWaitForResponse("qVAttachOrWaitSupported", response,
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false) == PacketResult::Success) {
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if (response.IsOKResponse())
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m_attach_or_wait_reply = eLazyBoolYes;
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}
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}
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return m_attach_or_wait_reply == eLazyBoolYes;
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}
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bool GDBRemoteCommunicationClient::GetSyncThreadStateSupported() {
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if (m_prepare_for_reg_writing_reply == eLazyBoolCalculate) {
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m_prepare_for_reg_writing_reply = eLazyBoolNo;
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StringExtractorGDBRemote response;
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if (SendPacketAndWaitForResponse("qSyncThreadStateSupported", response,
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false) == PacketResult::Success) {
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if (response.IsOKResponse())
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m_prepare_for_reg_writing_reply = eLazyBoolYes;
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}
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}
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return m_prepare_for_reg_writing_reply == eLazyBoolYes;
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}
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void GDBRemoteCommunicationClient::ResetDiscoverableSettings(bool did_exec) {
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if (!did_exec) {
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// Hard reset everything, this is when we first connect to a GDB server
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m_supports_not_sending_acks = eLazyBoolCalculate;
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m_supports_thread_suffix = eLazyBoolCalculate;
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m_supports_threads_in_stop_reply = eLazyBoolCalculate;
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m_supports_vCont_c = eLazyBoolCalculate;
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m_supports_vCont_C = eLazyBoolCalculate;
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m_supports_vCont_s = eLazyBoolCalculate;
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m_supports_vCont_S = eLazyBoolCalculate;
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m_supports_p = eLazyBoolCalculate;
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m_supports_x = eLazyBoolCalculate;
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m_supports_QSaveRegisterState = eLazyBoolCalculate;
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m_qHostInfo_is_valid = eLazyBoolCalculate;
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m_curr_pid_is_valid = eLazyBoolCalculate;
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m_qGDBServerVersion_is_valid = eLazyBoolCalculate;
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m_supports_alloc_dealloc_memory = eLazyBoolCalculate;
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m_supports_memory_region_info = eLazyBoolCalculate;
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m_prepare_for_reg_writing_reply = eLazyBoolCalculate;
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m_attach_or_wait_reply = eLazyBoolCalculate;
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m_avoid_g_packets = eLazyBoolCalculate;
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m_supports_qXfer_auxv_read = eLazyBoolCalculate;
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m_supports_qXfer_libraries_read = eLazyBoolCalculate;
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m_supports_qXfer_libraries_svr4_read = eLazyBoolCalculate;
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m_supports_qXfer_features_read = eLazyBoolCalculate;
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m_supports_qXfer_memory_map_read = eLazyBoolCalculate;
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m_supports_augmented_libraries_svr4_read = eLazyBoolCalculate;
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m_supports_qProcessInfoPID = true;
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m_supports_qfProcessInfo = true;
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m_supports_qUserName = true;
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m_supports_qGroupName = true;
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m_supports_qThreadStopInfo = true;
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m_supports_z0 = true;
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m_supports_z1 = true;
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m_supports_z2 = true;
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m_supports_z3 = true;
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m_supports_z4 = true;
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m_supports_QEnvironment = true;
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m_supports_QEnvironmentHexEncoded = true;
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m_supports_qSymbol = true;
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m_qSymbol_requests_done = false;
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m_supports_qModuleInfo = true;
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m_host_arch.Clear();
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m_os_version = llvm::VersionTuple();
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m_os_build.clear();
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m_os_kernel.clear();
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m_hostname.clear();
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m_gdb_server_name.clear();
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m_gdb_server_version = UINT32_MAX;
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m_default_packet_timeout = seconds(0);
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m_max_packet_size = 0;
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m_qSupported_response.clear();
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m_supported_async_json_packets_is_valid = false;
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m_supported_async_json_packets_sp.reset();
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m_supports_jModulesInfo = true;
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}
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// These flags should be reset when we first connect to a GDB server and when
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// our inferior process execs
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m_qProcessInfo_is_valid = eLazyBoolCalculate;
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m_process_arch.Clear();
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}
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void GDBRemoteCommunicationClient::GetRemoteQSupported() {
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// Clear out any capabilities we expect to see in the qSupported response
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m_supports_qXfer_auxv_read = eLazyBoolNo;
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m_supports_qXfer_libraries_read = eLazyBoolNo;
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m_supports_qXfer_libraries_svr4_read = eLazyBoolNo;
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m_supports_augmented_libraries_svr4_read = eLazyBoolNo;
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m_supports_qXfer_features_read = eLazyBoolNo;
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m_supports_qXfer_memory_map_read = eLazyBoolNo;
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m_max_packet_size = UINT64_MAX; // It's supposed to always be there, but if
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// not, we assume no limit
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// build the qSupported packet
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std::vector<std::string> features = {"xmlRegisters=i386,arm,mips"};
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StreamString packet;
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packet.PutCString("qSupported");
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for (uint32_t i = 0; i < features.size(); ++i) {
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packet.PutCString(i == 0 ? ":" : ";");
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packet.PutCString(features[i]);
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}
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StringExtractorGDBRemote response;
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if (SendPacketAndWaitForResponse(packet.GetString(), response,
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/*send_async=*/false) ==
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PacketResult::Success) {
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const char *response_cstr = response.GetStringRef().data();
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// Hang on to the qSupported packet, so that platforms can do custom
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// configuration of the transport before attaching/launching the process.
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m_qSupported_response = response_cstr;
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if (::strstr(response_cstr, "qXfer:auxv:read+"))
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m_supports_qXfer_auxv_read = eLazyBoolYes;
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if (::strstr(response_cstr, "qXfer:libraries-svr4:read+"))
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m_supports_qXfer_libraries_svr4_read = eLazyBoolYes;
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if (::strstr(response_cstr, "augmented-libraries-svr4-read")) {
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m_supports_qXfer_libraries_svr4_read = eLazyBoolYes; // implied
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m_supports_augmented_libraries_svr4_read = eLazyBoolYes;
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}
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if (::strstr(response_cstr, "qXfer:libraries:read+"))
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m_supports_qXfer_libraries_read = eLazyBoolYes;
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if (::strstr(response_cstr, "qXfer:features:read+"))
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m_supports_qXfer_features_read = eLazyBoolYes;
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if (::strstr(response_cstr, "qXfer:memory-map:read+"))
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m_supports_qXfer_memory_map_read = eLazyBoolYes;
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// Look for a list of compressions in the features list e.g.
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// qXfer:features:read+;PacketSize=20000;qEcho+;SupportedCompressions=zlib-
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// deflate,lzma
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const char *features_list = ::strstr(response_cstr, "qXfer:features:");
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if (features_list) {
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const char *compressions =
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::strstr(features_list, "SupportedCompressions=");
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if (compressions) {
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std::vector<std::string> supported_compressions;
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compressions += sizeof("SupportedCompressions=") - 1;
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const char *end_of_compressions = strchr(compressions, ';');
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if (end_of_compressions == nullptr) {
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end_of_compressions = strchr(compressions, '\0');
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}
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const char *current_compression = compressions;
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while (current_compression < end_of_compressions) {
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const char *next_compression_name = strchr(current_compression, ',');
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const char *end_of_this_word = next_compression_name;
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if (next_compression_name == nullptr ||
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end_of_compressions < next_compression_name) {
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end_of_this_word = end_of_compressions;
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}
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if (end_of_this_word) {
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if (end_of_this_word == current_compression) {
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current_compression++;
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} else {
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std::string this_compression(
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current_compression, end_of_this_word - current_compression);
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supported_compressions.push_back(this_compression);
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current_compression = end_of_this_word + 1;
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}
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} else {
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supported_compressions.push_back(current_compression);
|
|
current_compression = end_of_compressions;
|
|
}
|
|
}
|
|
|
|
if (supported_compressions.size() > 0) {
|
|
MaybeEnableCompression(supported_compressions);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (::strstr(response_cstr, "qEcho"))
|
|
m_supports_qEcho = eLazyBoolYes;
|
|
else
|
|
m_supports_qEcho = eLazyBoolNo;
|
|
|
|
if (::strstr(response_cstr, "QPassSignals+"))
|
|
m_supports_QPassSignals = eLazyBoolYes;
|
|
else
|
|
m_supports_QPassSignals = eLazyBoolNo;
|
|
|
|
const char *packet_size_str = ::strstr(response_cstr, "PacketSize=");
|
|
if (packet_size_str) {
|
|
StringExtractorGDBRemote packet_response(packet_size_str +
|
|
strlen("PacketSize="));
|
|
m_max_packet_size =
|
|
packet_response.GetHexMaxU64(/*little_endian=*/false, UINT64_MAX);
|
|
if (m_max_packet_size == 0) {
|
|
m_max_packet_size = UINT64_MAX; // Must have been a garbled response
|
|
Log *log(
|
|
ProcessGDBRemoteLog::GetLogIfAllCategoriesSet(GDBR_LOG_PROCESS));
|
|
LLDB_LOGF(log, "Garbled PacketSize spec in qSupported response");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::GetThreadSuffixSupported() {
|
|
if (m_supports_thread_suffix == eLazyBoolCalculate) {
|
|
StringExtractorGDBRemote response;
|
|
m_supports_thread_suffix = eLazyBoolNo;
|
|
if (SendPacketAndWaitForResponse("QThreadSuffixSupported", response,
|
|
false) == PacketResult::Success) {
|
|
if (response.IsOKResponse())
|
|
m_supports_thread_suffix = eLazyBoolYes;
|
|
}
|
|
}
|
|
return m_supports_thread_suffix;
|
|
}
|
|
bool GDBRemoteCommunicationClient::GetVContSupported(char flavor) {
|
|
if (m_supports_vCont_c == eLazyBoolCalculate) {
|
|
StringExtractorGDBRemote response;
|
|
m_supports_vCont_any = eLazyBoolNo;
|
|
m_supports_vCont_all = eLazyBoolNo;
|
|
m_supports_vCont_c = eLazyBoolNo;
|
|
m_supports_vCont_C = eLazyBoolNo;
|
|
m_supports_vCont_s = eLazyBoolNo;
|
|
m_supports_vCont_S = eLazyBoolNo;
|
|
if (SendPacketAndWaitForResponse("vCont?", response, false) ==
|
|
PacketResult::Success) {
|
|
const char *response_cstr = response.GetStringRef().data();
|
|
if (::strstr(response_cstr, ";c"))
|
|
m_supports_vCont_c = eLazyBoolYes;
|
|
|
|
if (::strstr(response_cstr, ";C"))
|
|
m_supports_vCont_C = eLazyBoolYes;
|
|
|
|
if (::strstr(response_cstr, ";s"))
|
|
m_supports_vCont_s = eLazyBoolYes;
|
|
|
|
if (::strstr(response_cstr, ";S"))
|
|
m_supports_vCont_S = eLazyBoolYes;
|
|
|
|
if (m_supports_vCont_c == eLazyBoolYes &&
|
|
m_supports_vCont_C == eLazyBoolYes &&
|
|
m_supports_vCont_s == eLazyBoolYes &&
|
|
m_supports_vCont_S == eLazyBoolYes) {
|
|
m_supports_vCont_all = eLazyBoolYes;
|
|
}
|
|
|
|
if (m_supports_vCont_c == eLazyBoolYes ||
|
|
m_supports_vCont_C == eLazyBoolYes ||
|
|
m_supports_vCont_s == eLazyBoolYes ||
|
|
m_supports_vCont_S == eLazyBoolYes) {
|
|
m_supports_vCont_any = eLazyBoolYes;
|
|
}
|
|
}
|
|
}
|
|
|
|
switch (flavor) {
|
|
case 'a':
|
|
return m_supports_vCont_any;
|
|
case 'A':
|
|
return m_supports_vCont_all;
|
|
case 'c':
|
|
return m_supports_vCont_c;
|
|
case 'C':
|
|
return m_supports_vCont_C;
|
|
case 's':
|
|
return m_supports_vCont_s;
|
|
case 'S':
|
|
return m_supports_vCont_S;
|
|
default:
|
|
break;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
GDBRemoteCommunication::PacketResult
|
|
GDBRemoteCommunicationClient::SendThreadSpecificPacketAndWaitForResponse(
|
|
lldb::tid_t tid, StreamString &&payload, StringExtractorGDBRemote &response,
|
|
bool send_async) {
|
|
Lock lock(*this, send_async);
|
|
if (!lock) {
|
|
if (Log *log = ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(
|
|
GDBR_LOG_PROCESS | GDBR_LOG_PACKETS))
|
|
LLDB_LOGF(log,
|
|
"GDBRemoteCommunicationClient::%s: Didn't get sequence mutex "
|
|
"for %s packet.",
|
|
__FUNCTION__, payload.GetData());
|
|
return PacketResult::ErrorNoSequenceLock;
|
|
}
|
|
|
|
if (GetThreadSuffixSupported())
|
|
payload.Printf(";thread:%4.4" PRIx64 ";", tid);
|
|
else {
|
|
if (!SetCurrentThread(tid))
|
|
return PacketResult::ErrorSendFailed;
|
|
}
|
|
|
|
return SendPacketAndWaitForResponseNoLock(payload.GetString(), response);
|
|
}
|
|
|
|
// Check if the target supports 'p' packet. It sends out a 'p' packet and
|
|
// checks the response. A normal packet will tell us that support is available.
|
|
//
|
|
// Takes a valid thread ID because p needs to apply to a thread.
|
|
bool GDBRemoteCommunicationClient::GetpPacketSupported(lldb::tid_t tid) {
|
|
if (m_supports_p == eLazyBoolCalculate) {
|
|
m_supports_p = eLazyBoolNo;
|
|
StreamString payload;
|
|
payload.PutCString("p0");
|
|
StringExtractorGDBRemote response;
|
|
if (SendThreadSpecificPacketAndWaitForResponse(tid, std::move(payload),
|
|
response, false) ==
|
|
PacketResult::Success &&
|
|
response.IsNormalResponse()) {
|
|
m_supports_p = eLazyBoolYes;
|
|
}
|
|
}
|
|
return m_supports_p;
|
|
}
|
|
|
|
StructuredData::ObjectSP GDBRemoteCommunicationClient::GetThreadsInfo() {
|
|
// Get information on all threads at one using the "jThreadsInfo" packet
|
|
StructuredData::ObjectSP object_sp;
|
|
|
|
if (m_supports_jThreadsInfo) {
|
|
StringExtractorGDBRemote response;
|
|
response.SetResponseValidatorToJSON();
|
|
if (SendPacketAndWaitForResponse("jThreadsInfo", response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsUnsupportedResponse()) {
|
|
m_supports_jThreadsInfo = false;
|
|
} else if (!response.Empty()) {
|
|
object_sp = StructuredData::ParseJSON(response.GetStringRef());
|
|
}
|
|
}
|
|
}
|
|
return object_sp;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::GetThreadExtendedInfoSupported() {
|
|
if (m_supports_jThreadExtendedInfo == eLazyBoolCalculate) {
|
|
StringExtractorGDBRemote response;
|
|
m_supports_jThreadExtendedInfo = eLazyBoolNo;
|
|
if (SendPacketAndWaitForResponse("jThreadExtendedInfo:", response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsOKResponse()) {
|
|
m_supports_jThreadExtendedInfo = eLazyBoolYes;
|
|
}
|
|
}
|
|
}
|
|
return m_supports_jThreadExtendedInfo;
|
|
}
|
|
|
|
void GDBRemoteCommunicationClient::EnableErrorStringInPacket() {
|
|
if (m_supports_error_string_reply == eLazyBoolCalculate) {
|
|
StringExtractorGDBRemote response;
|
|
// We try to enable error strings in remote packets but if we fail, we just
|
|
// work in the older way.
|
|
m_supports_error_string_reply = eLazyBoolNo;
|
|
if (SendPacketAndWaitForResponse("QEnableErrorStrings", response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsOKResponse()) {
|
|
m_supports_error_string_reply = eLazyBoolYes;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::GetLoadedDynamicLibrariesInfosSupported() {
|
|
if (m_supports_jLoadedDynamicLibrariesInfos == eLazyBoolCalculate) {
|
|
StringExtractorGDBRemote response;
|
|
m_supports_jLoadedDynamicLibrariesInfos = eLazyBoolNo;
|
|
if (SendPacketAndWaitForResponse("jGetLoadedDynamicLibrariesInfos:",
|
|
response,
|
|
false) == PacketResult::Success) {
|
|
if (response.IsOKResponse()) {
|
|
m_supports_jLoadedDynamicLibrariesInfos = eLazyBoolYes;
|
|
}
|
|
}
|
|
}
|
|
return m_supports_jLoadedDynamicLibrariesInfos;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::GetSharedCacheInfoSupported() {
|
|
if (m_supports_jGetSharedCacheInfo == eLazyBoolCalculate) {
|
|
StringExtractorGDBRemote response;
|
|
m_supports_jGetSharedCacheInfo = eLazyBoolNo;
|
|
if (SendPacketAndWaitForResponse("jGetSharedCacheInfo:", response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsOKResponse()) {
|
|
m_supports_jGetSharedCacheInfo = eLazyBoolYes;
|
|
}
|
|
}
|
|
}
|
|
return m_supports_jGetSharedCacheInfo;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::GetxPacketSupported() {
|
|
if (m_supports_x == eLazyBoolCalculate) {
|
|
StringExtractorGDBRemote response;
|
|
m_supports_x = eLazyBoolNo;
|
|
char packet[256];
|
|
snprintf(packet, sizeof(packet), "x0,0");
|
|
if (SendPacketAndWaitForResponse(packet, response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsOKResponse())
|
|
m_supports_x = eLazyBoolYes;
|
|
}
|
|
}
|
|
return m_supports_x;
|
|
}
|
|
|
|
GDBRemoteCommunicationClient::PacketResult
|
|
GDBRemoteCommunicationClient::SendPacketsAndConcatenateResponses(
|
|
const char *payload_prefix, std::string &response_string) {
|
|
Lock lock(*this, false);
|
|
if (!lock) {
|
|
Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_PROCESS |
|
|
GDBR_LOG_PACKETS));
|
|
LLDB_LOGF(log,
|
|
"error: failed to get packet sequence mutex, not sending "
|
|
"packets with prefix '%s'",
|
|
payload_prefix);
|
|
return PacketResult::ErrorNoSequenceLock;
|
|
}
|
|
|
|
response_string = "";
|
|
std::string payload_prefix_str(payload_prefix);
|
|
unsigned int response_size = 0x1000;
|
|
if (response_size > GetRemoteMaxPacketSize()) { // May send qSupported packet
|
|
response_size = GetRemoteMaxPacketSize();
|
|
}
|
|
|
|
for (unsigned int offset = 0; true; offset += response_size) {
|
|
StringExtractorGDBRemote this_response;
|
|
// Construct payload
|
|
char sizeDescriptor[128];
|
|
snprintf(sizeDescriptor, sizeof(sizeDescriptor), "%x,%x", offset,
|
|
response_size);
|
|
PacketResult result = SendPacketAndWaitForResponseNoLock(
|
|
payload_prefix_str + sizeDescriptor, this_response);
|
|
if (result != PacketResult::Success)
|
|
return result;
|
|
|
|
const std::string &this_string = this_response.GetStringRef();
|
|
|
|
// Check for m or l as first character; l seems to mean this is the last
|
|
// chunk
|
|
char first_char = *this_string.c_str();
|
|
if (first_char != 'm' && first_char != 'l') {
|
|
return PacketResult::ErrorReplyInvalid;
|
|
}
|
|
// Concatenate the result so far (skipping 'm' or 'l')
|
|
response_string.append(this_string, 1, std::string::npos);
|
|
if (first_char == 'l')
|
|
// We're done
|
|
return PacketResult::Success;
|
|
}
|
|
}
|
|
|
|
lldb::pid_t GDBRemoteCommunicationClient::GetCurrentProcessID(bool allow_lazy) {
|
|
if (allow_lazy && m_curr_pid_is_valid == eLazyBoolYes)
|
|
return m_curr_pid;
|
|
|
|
// First try to retrieve the pid via the qProcessInfo request.
|
|
GetCurrentProcessInfo(allow_lazy);
|
|
if (m_curr_pid_is_valid == eLazyBoolYes) {
|
|
// We really got it.
|
|
return m_curr_pid;
|
|
} else {
|
|
// If we don't get a response for qProcessInfo, check if $qC gives us a
|
|
// result. $qC only returns a real process id on older debugserver and
|
|
// lldb-platform stubs. The gdb remote protocol documents $qC as returning
|
|
// the thread id, which newer debugserver and lldb-gdbserver stubs return
|
|
// correctly.
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse("qC", response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.GetChar() == 'Q') {
|
|
if (response.GetChar() == 'C') {
|
|
m_curr_pid = response.GetHexMaxU32(false, LLDB_INVALID_PROCESS_ID);
|
|
if (m_curr_pid != LLDB_INVALID_PROCESS_ID) {
|
|
m_curr_pid_is_valid = eLazyBoolYes;
|
|
return m_curr_pid;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
// If we don't get a response for $qC, check if $qfThreadID gives us a
|
|
// result.
|
|
if (m_curr_pid == LLDB_INVALID_PROCESS_ID) {
|
|
std::vector<lldb::tid_t> thread_ids;
|
|
bool sequence_mutex_unavailable;
|
|
size_t size;
|
|
size = GetCurrentThreadIDs(thread_ids, sequence_mutex_unavailable);
|
|
if (size && !sequence_mutex_unavailable) {
|
|
m_curr_pid = thread_ids.front();
|
|
m_curr_pid_is_valid = eLazyBoolYes;
|
|
return m_curr_pid;
|
|
}
|
|
}
|
|
}
|
|
|
|
return LLDB_INVALID_PROCESS_ID;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::GetLaunchSuccess(std::string &error_str) {
|
|
error_str.clear();
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse("qLaunchSuccess", response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsOKResponse())
|
|
return true;
|
|
if (response.GetChar() == 'E') {
|
|
// A string the describes what failed when launching...
|
|
error_str = response.GetStringRef().substr(1);
|
|
} else {
|
|
error_str.assign("unknown error occurred launching process");
|
|
}
|
|
} else {
|
|
error_str.assign("timed out waiting for app to launch");
|
|
}
|
|
return false;
|
|
}
|
|
|
|
int GDBRemoteCommunicationClient::SendArgumentsPacket(
|
|
const ProcessLaunchInfo &launch_info) {
|
|
// Since we don't get the send argv0 separate from the executable path, we
|
|
// need to make sure to use the actual executable path found in the
|
|
// launch_info...
|
|
std::vector<const char *> argv;
|
|
FileSpec exe_file = launch_info.GetExecutableFile();
|
|
std::string exe_path;
|
|
const char *arg = nullptr;
|
|
const Args &launch_args = launch_info.GetArguments();
|
|
if (exe_file)
|
|
exe_path = exe_file.GetPath(false);
|
|
else {
|
|
arg = launch_args.GetArgumentAtIndex(0);
|
|
if (arg)
|
|
exe_path = arg;
|
|
}
|
|
if (!exe_path.empty()) {
|
|
argv.push_back(exe_path.c_str());
|
|
for (uint32_t i = 1; (arg = launch_args.GetArgumentAtIndex(i)) != nullptr;
|
|
++i) {
|
|
if (arg)
|
|
argv.push_back(arg);
|
|
}
|
|
}
|
|
if (!argv.empty()) {
|
|
StreamString packet;
|
|
packet.PutChar('A');
|
|
for (size_t i = 0, n = argv.size(); i < n; ++i) {
|
|
arg = argv[i];
|
|
const int arg_len = strlen(arg);
|
|
if (i > 0)
|
|
packet.PutChar(',');
|
|
packet.Printf("%i,%i,", arg_len * 2, (int)i);
|
|
packet.PutBytesAsRawHex8(arg, arg_len);
|
|
}
|
|
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsOKResponse())
|
|
return 0;
|
|
uint8_t error = response.GetError();
|
|
if (error)
|
|
return error;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int GDBRemoteCommunicationClient::SendEnvironment(const Environment &env) {
|
|
for (const auto &KV : env) {
|
|
int r = SendEnvironmentPacket(Environment::compose(KV).c_str());
|
|
if (r != 0)
|
|
return r;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int GDBRemoteCommunicationClient::SendEnvironmentPacket(
|
|
char const *name_equal_value) {
|
|
if (name_equal_value && name_equal_value[0]) {
|
|
StreamString packet;
|
|
bool send_hex_encoding = false;
|
|
for (const char *p = name_equal_value; *p != '\0' && !send_hex_encoding;
|
|
++p) {
|
|
if (isprint(*p)) {
|
|
switch (*p) {
|
|
case '$':
|
|
case '#':
|
|
case '*':
|
|
case '}':
|
|
send_hex_encoding = true;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
} else {
|
|
// We have non printable characters, lets hex encode this...
|
|
send_hex_encoding = true;
|
|
}
|
|
}
|
|
|
|
StringExtractorGDBRemote response;
|
|
if (send_hex_encoding) {
|
|
if (m_supports_QEnvironmentHexEncoded) {
|
|
packet.PutCString("QEnvironmentHexEncoded:");
|
|
packet.PutBytesAsRawHex8(name_equal_value, strlen(name_equal_value));
|
|
if (SendPacketAndWaitForResponse(packet.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsOKResponse())
|
|
return 0;
|
|
uint8_t error = response.GetError();
|
|
if (error)
|
|
return error;
|
|
if (response.IsUnsupportedResponse())
|
|
m_supports_QEnvironmentHexEncoded = false;
|
|
}
|
|
}
|
|
|
|
} else if (m_supports_QEnvironment) {
|
|
packet.Printf("QEnvironment:%s", name_equal_value);
|
|
if (SendPacketAndWaitForResponse(packet.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsOKResponse())
|
|
return 0;
|
|
uint8_t error = response.GetError();
|
|
if (error)
|
|
return error;
|
|
if (response.IsUnsupportedResponse())
|
|
m_supports_QEnvironment = false;
|
|
}
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int GDBRemoteCommunicationClient::SendLaunchArchPacket(char const *arch) {
|
|
if (arch && arch[0]) {
|
|
StreamString packet;
|
|
packet.Printf("QLaunchArch:%s", arch);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsOKResponse())
|
|
return 0;
|
|
uint8_t error = response.GetError();
|
|
if (error)
|
|
return error;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int GDBRemoteCommunicationClient::SendLaunchEventDataPacket(
|
|
char const *data, bool *was_supported) {
|
|
if (data && *data != '\0') {
|
|
StreamString packet;
|
|
packet.Printf("QSetProcessEvent:%s", data);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsOKResponse()) {
|
|
if (was_supported)
|
|
*was_supported = true;
|
|
return 0;
|
|
} else if (response.IsUnsupportedResponse()) {
|
|
if (was_supported)
|
|
*was_supported = false;
|
|
return -1;
|
|
} else {
|
|
uint8_t error = response.GetError();
|
|
if (was_supported)
|
|
*was_supported = true;
|
|
if (error)
|
|
return error;
|
|
}
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
llvm::VersionTuple GDBRemoteCommunicationClient::GetOSVersion() {
|
|
GetHostInfo();
|
|
return m_os_version;
|
|
}
|
|
|
|
llvm::VersionTuple GDBRemoteCommunicationClient::GetMacCatalystVersion() {
|
|
GetHostInfo();
|
|
return m_maccatalyst_version;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::GetOSBuildString(std::string &s) {
|
|
if (GetHostInfo()) {
|
|
if (!m_os_build.empty()) {
|
|
s = m_os_build;
|
|
return true;
|
|
}
|
|
}
|
|
s.clear();
|
|
return false;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::GetOSKernelDescription(std::string &s) {
|
|
if (GetHostInfo()) {
|
|
if (!m_os_kernel.empty()) {
|
|
s = m_os_kernel;
|
|
return true;
|
|
}
|
|
}
|
|
s.clear();
|
|
return false;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::GetHostname(std::string &s) {
|
|
if (GetHostInfo()) {
|
|
if (!m_hostname.empty()) {
|
|
s = m_hostname;
|
|
return true;
|
|
}
|
|
}
|
|
s.clear();
|
|
return false;
|
|
}
|
|
|
|
ArchSpec GDBRemoteCommunicationClient::GetSystemArchitecture() {
|
|
if (GetHostInfo())
|
|
return m_host_arch;
|
|
return ArchSpec();
|
|
}
|
|
|
|
const lldb_private::ArchSpec &
|
|
GDBRemoteCommunicationClient::GetProcessArchitecture() {
|
|
if (m_qProcessInfo_is_valid == eLazyBoolCalculate)
|
|
GetCurrentProcessInfo();
|
|
return m_process_arch;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::GetGDBServerVersion() {
|
|
if (m_qGDBServerVersion_is_valid == eLazyBoolCalculate) {
|
|
m_gdb_server_name.clear();
|
|
m_gdb_server_version = 0;
|
|
m_qGDBServerVersion_is_valid = eLazyBoolNo;
|
|
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse("qGDBServerVersion", response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsNormalResponse()) {
|
|
llvm::StringRef name, value;
|
|
bool success = false;
|
|
while (response.GetNameColonValue(name, value)) {
|
|
if (name.equals("name")) {
|
|
success = true;
|
|
m_gdb_server_name = value;
|
|
} else if (name.equals("version")) {
|
|
llvm::StringRef major, minor;
|
|
std::tie(major, minor) = value.split('.');
|
|
if (!major.getAsInteger(0, m_gdb_server_version))
|
|
success = true;
|
|
}
|
|
}
|
|
if (success)
|
|
m_qGDBServerVersion_is_valid = eLazyBoolYes;
|
|
}
|
|
}
|
|
}
|
|
return m_qGDBServerVersion_is_valid == eLazyBoolYes;
|
|
}
|
|
|
|
void GDBRemoteCommunicationClient::MaybeEnableCompression(
|
|
std::vector<std::string> supported_compressions) {
|
|
CompressionType avail_type = CompressionType::None;
|
|
std::string avail_name;
|
|
|
|
#if defined(HAVE_LIBCOMPRESSION)
|
|
if (avail_type == CompressionType::None) {
|
|
for (auto compression : supported_compressions) {
|
|
if (compression == "lzfse") {
|
|
avail_type = CompressionType::LZFSE;
|
|
avail_name = compression;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if defined(HAVE_LIBCOMPRESSION)
|
|
if (avail_type == CompressionType::None) {
|
|
for (auto compression : supported_compressions) {
|
|
if (compression == "zlib-deflate") {
|
|
avail_type = CompressionType::ZlibDeflate;
|
|
avail_name = compression;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if defined(HAVE_LIBZ)
|
|
if (avail_type == CompressionType::None) {
|
|
for (auto compression : supported_compressions) {
|
|
if (compression == "zlib-deflate") {
|
|
avail_type = CompressionType::ZlibDeflate;
|
|
avail_name = compression;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if defined(HAVE_LIBCOMPRESSION)
|
|
if (avail_type == CompressionType::None) {
|
|
for (auto compression : supported_compressions) {
|
|
if (compression == "lz4") {
|
|
avail_type = CompressionType::LZ4;
|
|
avail_name = compression;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
#if defined(HAVE_LIBCOMPRESSION)
|
|
if (avail_type == CompressionType::None) {
|
|
for (auto compression : supported_compressions) {
|
|
if (compression == "lzma") {
|
|
avail_type = CompressionType::LZMA;
|
|
avail_name = compression;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (avail_type != CompressionType::None) {
|
|
StringExtractorGDBRemote response;
|
|
std::string packet = "QEnableCompression:type:" + avail_name + ";";
|
|
if (SendPacketAndWaitForResponse(packet, response, false) !=
|
|
PacketResult::Success)
|
|
return;
|
|
|
|
if (response.IsOKResponse()) {
|
|
m_compression_type = avail_type;
|
|
}
|
|
}
|
|
}
|
|
|
|
const char *GDBRemoteCommunicationClient::GetGDBServerProgramName() {
|
|
if (GetGDBServerVersion()) {
|
|
if (!m_gdb_server_name.empty())
|
|
return m_gdb_server_name.c_str();
|
|
}
|
|
return nullptr;
|
|
}
|
|
|
|
uint32_t GDBRemoteCommunicationClient::GetGDBServerProgramVersion() {
|
|
if (GetGDBServerVersion())
|
|
return m_gdb_server_version;
|
|
return 0;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::GetDefaultThreadId(lldb::tid_t &tid) {
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse("qC", response, false) !=
|
|
PacketResult::Success)
|
|
return false;
|
|
|
|
if (!response.IsNormalResponse())
|
|
return false;
|
|
|
|
if (response.GetChar() == 'Q' && response.GetChar() == 'C')
|
|
tid = response.GetHexMaxU32(true, -1);
|
|
|
|
return true;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::GetHostInfo(bool force) {
|
|
Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_PROCESS));
|
|
|
|
if (force || m_qHostInfo_is_valid == eLazyBoolCalculate) {
|
|
// host info computation can require DNS traffic and shelling out to external processes.
|
|
// Increase the timeout to account for that.
|
|
ScopedTimeout timeout(*this, seconds(10));
|
|
m_qHostInfo_is_valid = eLazyBoolNo;
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse("qHostInfo", response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsNormalResponse()) {
|
|
llvm::StringRef name;
|
|
llvm::StringRef value;
|
|
uint32_t cpu = LLDB_INVALID_CPUTYPE;
|
|
uint32_t sub = 0;
|
|
std::string arch_name;
|
|
std::string os_name;
|
|
std::string environment;
|
|
std::string vendor_name;
|
|
std::string triple;
|
|
std::string distribution_id;
|
|
uint32_t pointer_byte_size = 0;
|
|
ByteOrder byte_order = eByteOrderInvalid;
|
|
uint32_t num_keys_decoded = 0;
|
|
while (response.GetNameColonValue(name, value)) {
|
|
if (name.equals("cputype")) {
|
|
// exception type in big endian hex
|
|
if (!value.getAsInteger(0, cpu))
|
|
++num_keys_decoded;
|
|
} else if (name.equals("cpusubtype")) {
|
|
// exception count in big endian hex
|
|
if (!value.getAsInteger(0, sub))
|
|
++num_keys_decoded;
|
|
} else if (name.equals("arch")) {
|
|
arch_name = value;
|
|
++num_keys_decoded;
|
|
} else if (name.equals("triple")) {
|
|
StringExtractor extractor(value);
|
|
extractor.GetHexByteString(triple);
|
|
++num_keys_decoded;
|
|
} else if (name.equals("distribution_id")) {
|
|
StringExtractor extractor(value);
|
|
extractor.GetHexByteString(distribution_id);
|
|
++num_keys_decoded;
|
|
} else if (name.equals("os_build")) {
|
|
StringExtractor extractor(value);
|
|
extractor.GetHexByteString(m_os_build);
|
|
++num_keys_decoded;
|
|
} else if (name.equals("hostname")) {
|
|
StringExtractor extractor(value);
|
|
extractor.GetHexByteString(m_hostname);
|
|
++num_keys_decoded;
|
|
} else if (name.equals("os_kernel")) {
|
|
StringExtractor extractor(value);
|
|
extractor.GetHexByteString(m_os_kernel);
|
|
++num_keys_decoded;
|
|
} else if (name.equals("ostype")) {
|
|
if (value.equals("maccatalyst")) {
|
|
os_name = "ios";
|
|
environment = "macabi";
|
|
} else
|
|
os_name = value;
|
|
++num_keys_decoded;
|
|
} else if (name.equals("vendor")) {
|
|
vendor_name = value;
|
|
++num_keys_decoded;
|
|
} else if (name.equals("endian")) {
|
|
byte_order = llvm::StringSwitch<lldb::ByteOrder>(value)
|
|
.Case("little", eByteOrderLittle)
|
|
.Case("big", eByteOrderBig)
|
|
.Case("pdp", eByteOrderPDP)
|
|
.Default(eByteOrderInvalid);
|
|
if (byte_order != eByteOrderInvalid)
|
|
++num_keys_decoded;
|
|
} else if (name.equals("ptrsize")) {
|
|
if (!value.getAsInteger(0, pointer_byte_size))
|
|
++num_keys_decoded;
|
|
} else if (name.equals("os_version") ||
|
|
name.equals(
|
|
"version")) // Older debugserver binaries used the
|
|
// "version" key instead of
|
|
// "os_version"...
|
|
{
|
|
if (!m_os_version.tryParse(value))
|
|
++num_keys_decoded;
|
|
} else if (name.equals("maccatalyst_version")) {
|
|
if (!m_maccatalyst_version.tryParse(value))
|
|
++num_keys_decoded;
|
|
} else if (name.equals("watchpoint_exceptions_received")) {
|
|
m_watchpoints_trigger_after_instruction =
|
|
llvm::StringSwitch<LazyBool>(value)
|
|
.Case("before", eLazyBoolNo)
|
|
.Case("after", eLazyBoolYes)
|
|
.Default(eLazyBoolCalculate);
|
|
if (m_watchpoints_trigger_after_instruction != eLazyBoolCalculate)
|
|
++num_keys_decoded;
|
|
} else if (name.equals("default_packet_timeout")) {
|
|
uint32_t timeout_seconds;
|
|
if (!value.getAsInteger(0, timeout_seconds)) {
|
|
m_default_packet_timeout = seconds(timeout_seconds);
|
|
SetPacketTimeout(m_default_packet_timeout);
|
|
++num_keys_decoded;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (num_keys_decoded > 0)
|
|
m_qHostInfo_is_valid = eLazyBoolYes;
|
|
|
|
if (triple.empty()) {
|
|
if (arch_name.empty()) {
|
|
if (cpu != LLDB_INVALID_CPUTYPE) {
|
|
m_host_arch.SetArchitecture(eArchTypeMachO, cpu, sub);
|
|
if (pointer_byte_size) {
|
|
assert(pointer_byte_size == m_host_arch.GetAddressByteSize());
|
|
}
|
|
if (byte_order != eByteOrderInvalid) {
|
|
assert(byte_order == m_host_arch.GetByteOrder());
|
|
}
|
|
|
|
if (!vendor_name.empty())
|
|
m_host_arch.GetTriple().setVendorName(
|
|
llvm::StringRef(vendor_name));
|
|
if (!os_name.empty())
|
|
m_host_arch.GetTriple().setOSName(llvm::StringRef(os_name));
|
|
if (!environment.empty())
|
|
m_host_arch.GetTriple().setEnvironmentName(environment);
|
|
}
|
|
} else {
|
|
std::string triple;
|
|
triple += arch_name;
|
|
if (!vendor_name.empty() || !os_name.empty()) {
|
|
triple += '-';
|
|
if (vendor_name.empty())
|
|
triple += "unknown";
|
|
else
|
|
triple += vendor_name;
|
|
triple += '-';
|
|
if (os_name.empty())
|
|
triple += "unknown";
|
|
else
|
|
triple += os_name;
|
|
}
|
|
m_host_arch.SetTriple(triple.c_str());
|
|
|
|
llvm::Triple &host_triple = m_host_arch.GetTriple();
|
|
if (host_triple.getVendor() == llvm::Triple::Apple &&
|
|
host_triple.getOS() == llvm::Triple::Darwin) {
|
|
switch (m_host_arch.GetMachine()) {
|
|
case llvm::Triple::aarch64:
|
|
case llvm::Triple::arm:
|
|
case llvm::Triple::thumb:
|
|
host_triple.setOS(llvm::Triple::IOS);
|
|
break;
|
|
default:
|
|
host_triple.setOS(llvm::Triple::MacOSX);
|
|
break;
|
|
}
|
|
}
|
|
if (pointer_byte_size) {
|
|
assert(pointer_byte_size == m_host_arch.GetAddressByteSize());
|
|
}
|
|
if (byte_order != eByteOrderInvalid) {
|
|
assert(byte_order == m_host_arch.GetByteOrder());
|
|
}
|
|
}
|
|
} else {
|
|
m_host_arch.SetTriple(triple.c_str());
|
|
if (pointer_byte_size) {
|
|
assert(pointer_byte_size == m_host_arch.GetAddressByteSize());
|
|
}
|
|
if (byte_order != eByteOrderInvalid) {
|
|
assert(byte_order == m_host_arch.GetByteOrder());
|
|
}
|
|
|
|
LLDB_LOGF(log,
|
|
"GDBRemoteCommunicationClient::%s parsed host "
|
|
"architecture as %s, triple as %s from triple text %s",
|
|
__FUNCTION__,
|
|
m_host_arch.GetArchitectureName()
|
|
? m_host_arch.GetArchitectureName()
|
|
: "<null-arch-name>",
|
|
m_host_arch.GetTriple().getTriple().c_str(),
|
|
triple.c_str());
|
|
}
|
|
if (!distribution_id.empty())
|
|
m_host_arch.SetDistributionId(distribution_id.c_str());
|
|
}
|
|
}
|
|
}
|
|
return m_qHostInfo_is_valid == eLazyBoolYes;
|
|
}
|
|
|
|
int GDBRemoteCommunicationClient::SendAttach(
|
|
lldb::pid_t pid, StringExtractorGDBRemote &response) {
|
|
if (pid != LLDB_INVALID_PROCESS_ID) {
|
|
char packet[64];
|
|
const int packet_len =
|
|
::snprintf(packet, sizeof(packet), "vAttach;%" PRIx64, pid);
|
|
UNUSED_IF_ASSERT_DISABLED(packet_len);
|
|
assert(packet_len < (int)sizeof(packet));
|
|
if (SendPacketAndWaitForResponse(packet, response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsErrorResponse())
|
|
return response.GetError();
|
|
return 0;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int GDBRemoteCommunicationClient::SendStdinNotification(const char *data,
|
|
size_t data_len) {
|
|
StreamString packet;
|
|
packet.PutCString("I");
|
|
packet.PutBytesAsRawHex8(data, data_len);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
return 0;
|
|
}
|
|
return response.GetError();
|
|
}
|
|
|
|
const lldb_private::ArchSpec &
|
|
GDBRemoteCommunicationClient::GetHostArchitecture() {
|
|
if (m_qHostInfo_is_valid == eLazyBoolCalculate)
|
|
GetHostInfo();
|
|
return m_host_arch;
|
|
}
|
|
|
|
seconds GDBRemoteCommunicationClient::GetHostDefaultPacketTimeout() {
|
|
if (m_qHostInfo_is_valid == eLazyBoolCalculate)
|
|
GetHostInfo();
|
|
return m_default_packet_timeout;
|
|
}
|
|
|
|
addr_t GDBRemoteCommunicationClient::AllocateMemory(size_t size,
|
|
uint32_t permissions) {
|
|
if (m_supports_alloc_dealloc_memory != eLazyBoolNo) {
|
|
m_supports_alloc_dealloc_memory = eLazyBoolYes;
|
|
char packet[64];
|
|
const int packet_len = ::snprintf(
|
|
packet, sizeof(packet), "_M%" PRIx64 ",%s%s%s", (uint64_t)size,
|
|
permissions & lldb::ePermissionsReadable ? "r" : "",
|
|
permissions & lldb::ePermissionsWritable ? "w" : "",
|
|
permissions & lldb::ePermissionsExecutable ? "x" : "");
|
|
assert(packet_len < (int)sizeof(packet));
|
|
UNUSED_IF_ASSERT_DISABLED(packet_len);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet, response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsUnsupportedResponse())
|
|
m_supports_alloc_dealloc_memory = eLazyBoolNo;
|
|
else if (!response.IsErrorResponse())
|
|
return response.GetHexMaxU64(false, LLDB_INVALID_ADDRESS);
|
|
} else {
|
|
m_supports_alloc_dealloc_memory = eLazyBoolNo;
|
|
}
|
|
}
|
|
return LLDB_INVALID_ADDRESS;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::DeallocateMemory(addr_t addr) {
|
|
if (m_supports_alloc_dealloc_memory != eLazyBoolNo) {
|
|
m_supports_alloc_dealloc_memory = eLazyBoolYes;
|
|
char packet[64];
|
|
const int packet_len =
|
|
::snprintf(packet, sizeof(packet), "_m%" PRIx64, (uint64_t)addr);
|
|
assert(packet_len < (int)sizeof(packet));
|
|
UNUSED_IF_ASSERT_DISABLED(packet_len);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet, response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsUnsupportedResponse())
|
|
m_supports_alloc_dealloc_memory = eLazyBoolNo;
|
|
else if (response.IsOKResponse())
|
|
return true;
|
|
} else {
|
|
m_supports_alloc_dealloc_memory = eLazyBoolNo;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
Status GDBRemoteCommunicationClient::Detach(bool keep_stopped) {
|
|
Status error;
|
|
|
|
if (keep_stopped) {
|
|
if (m_supports_detach_stay_stopped == eLazyBoolCalculate) {
|
|
char packet[64];
|
|
const int packet_len =
|
|
::snprintf(packet, sizeof(packet), "qSupportsDetachAndStayStopped:");
|
|
assert(packet_len < (int)sizeof(packet));
|
|
UNUSED_IF_ASSERT_DISABLED(packet_len);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet, response, false) ==
|
|
PacketResult::Success &&
|
|
response.IsOKResponse()) {
|
|
m_supports_detach_stay_stopped = eLazyBoolYes;
|
|
} else {
|
|
m_supports_detach_stay_stopped = eLazyBoolNo;
|
|
}
|
|
}
|
|
|
|
if (m_supports_detach_stay_stopped == eLazyBoolNo) {
|
|
error.SetErrorString("Stays stopped not supported by this target.");
|
|
return error;
|
|
} else {
|
|
StringExtractorGDBRemote response;
|
|
PacketResult packet_result =
|
|
SendPacketAndWaitForResponse("D1", response, false);
|
|
if (packet_result != PacketResult::Success)
|
|
error.SetErrorString("Sending extended disconnect packet failed.");
|
|
}
|
|
} else {
|
|
StringExtractorGDBRemote response;
|
|
PacketResult packet_result =
|
|
SendPacketAndWaitForResponse("D", response, false);
|
|
if (packet_result != PacketResult::Success)
|
|
error.SetErrorString("Sending disconnect packet failed.");
|
|
}
|
|
return error;
|
|
}
|
|
|
|
Status GDBRemoteCommunicationClient::GetMemoryRegionInfo(
|
|
lldb::addr_t addr, lldb_private::MemoryRegionInfo ®ion_info) {
|
|
Status error;
|
|
region_info.Clear();
|
|
|
|
if (m_supports_memory_region_info != eLazyBoolNo) {
|
|
m_supports_memory_region_info = eLazyBoolYes;
|
|
char packet[64];
|
|
const int packet_len = ::snprintf(
|
|
packet, sizeof(packet), "qMemoryRegionInfo:%" PRIx64, (uint64_t)addr);
|
|
assert(packet_len < (int)sizeof(packet));
|
|
UNUSED_IF_ASSERT_DISABLED(packet_len);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet, response, false) ==
|
|
PacketResult::Success &&
|
|
response.GetResponseType() == StringExtractorGDBRemote::eResponse) {
|
|
llvm::StringRef name;
|
|
llvm::StringRef value;
|
|
addr_t addr_value = LLDB_INVALID_ADDRESS;
|
|
bool success = true;
|
|
bool saw_permissions = false;
|
|
while (success && response.GetNameColonValue(name, value)) {
|
|
if (name.equals("start")) {
|
|
if (!value.getAsInteger(16, addr_value))
|
|
region_info.GetRange().SetRangeBase(addr_value);
|
|
} else if (name.equals("size")) {
|
|
if (!value.getAsInteger(16, addr_value))
|
|
region_info.GetRange().SetByteSize(addr_value);
|
|
} else if (name.equals("permissions") &&
|
|
region_info.GetRange().IsValid()) {
|
|
saw_permissions = true;
|
|
if (region_info.GetRange().Contains(addr)) {
|
|
if (value.find('r') != llvm::StringRef::npos)
|
|
region_info.SetReadable(MemoryRegionInfo::eYes);
|
|
else
|
|
region_info.SetReadable(MemoryRegionInfo::eNo);
|
|
|
|
if (value.find('w') != llvm::StringRef::npos)
|
|
region_info.SetWritable(MemoryRegionInfo::eYes);
|
|
else
|
|
region_info.SetWritable(MemoryRegionInfo::eNo);
|
|
|
|
if (value.find('x') != llvm::StringRef::npos)
|
|
region_info.SetExecutable(MemoryRegionInfo::eYes);
|
|
else
|
|
region_info.SetExecutable(MemoryRegionInfo::eNo);
|
|
|
|
region_info.SetMapped(MemoryRegionInfo::eYes);
|
|
} else {
|
|
// The reported region does not contain this address -- we're
|
|
// looking at an unmapped page
|
|
region_info.SetReadable(MemoryRegionInfo::eNo);
|
|
region_info.SetWritable(MemoryRegionInfo::eNo);
|
|
region_info.SetExecutable(MemoryRegionInfo::eNo);
|
|
region_info.SetMapped(MemoryRegionInfo::eNo);
|
|
}
|
|
} else if (name.equals("name")) {
|
|
StringExtractorGDBRemote name_extractor(value);
|
|
std::string name;
|
|
name_extractor.GetHexByteString(name);
|
|
region_info.SetName(name.c_str());
|
|
} else if (name.equals("error")) {
|
|
StringExtractorGDBRemote error_extractor(value);
|
|
std::string error_string;
|
|
// Now convert the HEX bytes into a string value
|
|
error_extractor.GetHexByteString(error_string);
|
|
error.SetErrorString(error_string.c_str());
|
|
}
|
|
}
|
|
|
|
if (region_info.GetRange().IsValid()) {
|
|
// We got a valid address range back but no permissions -- which means
|
|
// this is an unmapped page
|
|
if (!saw_permissions) {
|
|
region_info.SetReadable(MemoryRegionInfo::eNo);
|
|
region_info.SetWritable(MemoryRegionInfo::eNo);
|
|
region_info.SetExecutable(MemoryRegionInfo::eNo);
|
|
region_info.SetMapped(MemoryRegionInfo::eNo);
|
|
}
|
|
} else {
|
|
// We got an invalid address range back
|
|
error.SetErrorString("Server returned invalid range");
|
|
}
|
|
} else {
|
|
m_supports_memory_region_info = eLazyBoolNo;
|
|
}
|
|
}
|
|
|
|
if (m_supports_memory_region_info == eLazyBoolNo) {
|
|
error.SetErrorString("qMemoryRegionInfo is not supported");
|
|
}
|
|
|
|
// Try qXfer:memory-map:read to get region information not included in
|
|
// qMemoryRegionInfo
|
|
MemoryRegionInfo qXfer_region_info;
|
|
Status qXfer_error = GetQXferMemoryMapRegionInfo(addr, qXfer_region_info);
|
|
|
|
if (error.Fail()) {
|
|
// If qMemoryRegionInfo failed, but qXfer:memory-map:read succeeded, use
|
|
// the qXfer result as a fallback
|
|
if (qXfer_error.Success()) {
|
|
region_info = qXfer_region_info;
|
|
error.Clear();
|
|
} else {
|
|
region_info.Clear();
|
|
}
|
|
} else if (qXfer_error.Success()) {
|
|
// If both qMemoryRegionInfo and qXfer:memory-map:read succeeded, and if
|
|
// both regions are the same range, update the result to include the flash-
|
|
// memory information that is specific to the qXfer result.
|
|
if (region_info.GetRange() == qXfer_region_info.GetRange()) {
|
|
region_info.SetFlash(qXfer_region_info.GetFlash());
|
|
region_info.SetBlocksize(qXfer_region_info.GetBlocksize());
|
|
}
|
|
}
|
|
return error;
|
|
}
|
|
|
|
Status GDBRemoteCommunicationClient::GetQXferMemoryMapRegionInfo(
|
|
lldb::addr_t addr, MemoryRegionInfo ®ion) {
|
|
Status error = LoadQXferMemoryMap();
|
|
if (!error.Success())
|
|
return error;
|
|
for (const auto &map_region : m_qXfer_memory_map) {
|
|
if (map_region.GetRange().Contains(addr)) {
|
|
region = map_region;
|
|
return error;
|
|
}
|
|
}
|
|
error.SetErrorString("Region not found");
|
|
return error;
|
|
}
|
|
|
|
Status GDBRemoteCommunicationClient::LoadQXferMemoryMap() {
|
|
|
|
Status error;
|
|
|
|
if (m_qXfer_memory_map_loaded)
|
|
// Already loaded, return success
|
|
return error;
|
|
|
|
if (!XMLDocument::XMLEnabled()) {
|
|
error.SetErrorString("XML is not supported");
|
|
return error;
|
|
}
|
|
|
|
if (!GetQXferMemoryMapReadSupported()) {
|
|
error.SetErrorString("Memory map is not supported");
|
|
return error;
|
|
}
|
|
|
|
std::string xml;
|
|
lldb_private::Status lldberr;
|
|
if (!ReadExtFeature(ConstString("memory-map"), ConstString(""), xml,
|
|
lldberr)) {
|
|
error.SetErrorString("Failed to read memory map");
|
|
return error;
|
|
}
|
|
|
|
XMLDocument xml_document;
|
|
|
|
if (!xml_document.ParseMemory(xml.c_str(), xml.size())) {
|
|
error.SetErrorString("Failed to parse memory map xml");
|
|
return error;
|
|
}
|
|
|
|
XMLNode map_node = xml_document.GetRootElement("memory-map");
|
|
if (!map_node) {
|
|
error.SetErrorString("Invalid root node in memory map xml");
|
|
return error;
|
|
}
|
|
|
|
m_qXfer_memory_map.clear();
|
|
|
|
map_node.ForEachChildElement([this](const XMLNode &memory_node) -> bool {
|
|
if (!memory_node.IsElement())
|
|
return true;
|
|
if (memory_node.GetName() != "memory")
|
|
return true;
|
|
auto type = memory_node.GetAttributeValue("type", "");
|
|
uint64_t start;
|
|
uint64_t length;
|
|
if (!memory_node.GetAttributeValueAsUnsigned("start", start))
|
|
return true;
|
|
if (!memory_node.GetAttributeValueAsUnsigned("length", length))
|
|
return true;
|
|
MemoryRegionInfo region;
|
|
region.GetRange().SetRangeBase(start);
|
|
region.GetRange().SetByteSize(length);
|
|
if (type == "rom") {
|
|
region.SetReadable(MemoryRegionInfo::eYes);
|
|
this->m_qXfer_memory_map.push_back(region);
|
|
} else if (type == "ram") {
|
|
region.SetReadable(MemoryRegionInfo::eYes);
|
|
region.SetWritable(MemoryRegionInfo::eYes);
|
|
this->m_qXfer_memory_map.push_back(region);
|
|
} else if (type == "flash") {
|
|
region.SetFlash(MemoryRegionInfo::eYes);
|
|
memory_node.ForEachChildElement(
|
|
[®ion](const XMLNode &prop_node) -> bool {
|
|
if (!prop_node.IsElement())
|
|
return true;
|
|
if (prop_node.GetName() != "property")
|
|
return true;
|
|
auto propname = prop_node.GetAttributeValue("name", "");
|
|
if (propname == "blocksize") {
|
|
uint64_t blocksize;
|
|
if (prop_node.GetElementTextAsUnsigned(blocksize))
|
|
region.SetBlocksize(blocksize);
|
|
}
|
|
return true;
|
|
});
|
|
this->m_qXfer_memory_map.push_back(region);
|
|
}
|
|
return true;
|
|
});
|
|
|
|
m_qXfer_memory_map_loaded = true;
|
|
|
|
return error;
|
|
}
|
|
|
|
Status GDBRemoteCommunicationClient::GetWatchpointSupportInfo(uint32_t &num) {
|
|
Status error;
|
|
|
|
if (m_supports_watchpoint_support_info == eLazyBoolYes) {
|
|
num = m_num_supported_hardware_watchpoints;
|
|
return error;
|
|
}
|
|
|
|
// Set num to 0 first.
|
|
num = 0;
|
|
if (m_supports_watchpoint_support_info != eLazyBoolNo) {
|
|
char packet[64];
|
|
const int packet_len =
|
|
::snprintf(packet, sizeof(packet), "qWatchpointSupportInfo:");
|
|
assert(packet_len < (int)sizeof(packet));
|
|
UNUSED_IF_ASSERT_DISABLED(packet_len);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet, response, false) ==
|
|
PacketResult::Success) {
|
|
m_supports_watchpoint_support_info = eLazyBoolYes;
|
|
llvm::StringRef name;
|
|
llvm::StringRef value;
|
|
bool found_num_field = false;
|
|
while (response.GetNameColonValue(name, value)) {
|
|
if (name.equals("num")) {
|
|
value.getAsInteger(0, m_num_supported_hardware_watchpoints);
|
|
num = m_num_supported_hardware_watchpoints;
|
|
found_num_field = true;
|
|
}
|
|
}
|
|
if (!found_num_field) {
|
|
m_supports_watchpoint_support_info = eLazyBoolNo;
|
|
}
|
|
} else {
|
|
m_supports_watchpoint_support_info = eLazyBoolNo;
|
|
}
|
|
}
|
|
|
|
if (m_supports_watchpoint_support_info == eLazyBoolNo) {
|
|
error.SetErrorString("qWatchpointSupportInfo is not supported");
|
|
}
|
|
return error;
|
|
}
|
|
|
|
lldb_private::Status GDBRemoteCommunicationClient::GetWatchpointSupportInfo(
|
|
uint32_t &num, bool &after, const ArchSpec &arch) {
|
|
Status error(GetWatchpointSupportInfo(num));
|
|
if (error.Success())
|
|
error = GetWatchpointsTriggerAfterInstruction(after, arch);
|
|
return error;
|
|
}
|
|
|
|
lldb_private::Status
|
|
GDBRemoteCommunicationClient::GetWatchpointsTriggerAfterInstruction(
|
|
bool &after, const ArchSpec &arch) {
|
|
Status error;
|
|
llvm::Triple triple = arch.GetTriple();
|
|
|
|
// we assume watchpoints will happen after running the relevant opcode and we
|
|
// only want to override this behavior if we have explicitly received a
|
|
// qHostInfo telling us otherwise
|
|
if (m_qHostInfo_is_valid != eLazyBoolYes) {
|
|
// On targets like MIPS and ppc64, watchpoint exceptions are always
|
|
// generated before the instruction is executed. The connected target may
|
|
// not support qHostInfo or qWatchpointSupportInfo packets.
|
|
after = !(triple.isMIPS() || triple.isPPC64());
|
|
} else {
|
|
// For MIPS and ppc64, set m_watchpoints_trigger_after_instruction to
|
|
// eLazyBoolNo if it is not calculated before.
|
|
if (m_watchpoints_trigger_after_instruction == eLazyBoolCalculate &&
|
|
(triple.isMIPS() || triple.isPPC64()))
|
|
m_watchpoints_trigger_after_instruction = eLazyBoolNo;
|
|
|
|
after = (m_watchpoints_trigger_after_instruction != eLazyBoolNo);
|
|
}
|
|
return error;
|
|
}
|
|
|
|
int GDBRemoteCommunicationClient::SetSTDIN(const FileSpec &file_spec) {
|
|
if (file_spec) {
|
|
std::string path{file_spec.GetPath(false)};
|
|
StreamString packet;
|
|
packet.PutCString("QSetSTDIN:");
|
|
packet.PutStringAsRawHex8(path);
|
|
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsOKResponse())
|
|
return 0;
|
|
uint8_t error = response.GetError();
|
|
if (error)
|
|
return error;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int GDBRemoteCommunicationClient::SetSTDOUT(const FileSpec &file_spec) {
|
|
if (file_spec) {
|
|
std::string path{file_spec.GetPath(false)};
|
|
StreamString packet;
|
|
packet.PutCString("QSetSTDOUT:");
|
|
packet.PutStringAsRawHex8(path);
|
|
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsOKResponse())
|
|
return 0;
|
|
uint8_t error = response.GetError();
|
|
if (error)
|
|
return error;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int GDBRemoteCommunicationClient::SetSTDERR(const FileSpec &file_spec) {
|
|
if (file_spec) {
|
|
std::string path{file_spec.GetPath(false)};
|
|
StreamString packet;
|
|
packet.PutCString("QSetSTDERR:");
|
|
packet.PutStringAsRawHex8(path);
|
|
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsOKResponse())
|
|
return 0;
|
|
uint8_t error = response.GetError();
|
|
if (error)
|
|
return error;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::GetWorkingDir(FileSpec &working_dir) {
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse("qGetWorkingDir", response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsUnsupportedResponse())
|
|
return false;
|
|
if (response.IsErrorResponse())
|
|
return false;
|
|
std::string cwd;
|
|
response.GetHexByteString(cwd);
|
|
working_dir.SetFile(cwd, GetHostArchitecture().GetTriple());
|
|
return !cwd.empty();
|
|
}
|
|
return false;
|
|
}
|
|
|
|
int GDBRemoteCommunicationClient::SetWorkingDir(const FileSpec &working_dir) {
|
|
if (working_dir) {
|
|
std::string path{working_dir.GetPath(false)};
|
|
StreamString packet;
|
|
packet.PutCString("QSetWorkingDir:");
|
|
packet.PutStringAsRawHex8(path);
|
|
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsOKResponse())
|
|
return 0;
|
|
uint8_t error = response.GetError();
|
|
if (error)
|
|
return error;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int GDBRemoteCommunicationClient::SetDisableASLR(bool enable) {
|
|
char packet[32];
|
|
const int packet_len =
|
|
::snprintf(packet, sizeof(packet), "QSetDisableASLR:%i", enable ? 1 : 0);
|
|
assert(packet_len < (int)sizeof(packet));
|
|
UNUSED_IF_ASSERT_DISABLED(packet_len);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet, response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsOKResponse())
|
|
return 0;
|
|
uint8_t error = response.GetError();
|
|
if (error)
|
|
return error;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
int GDBRemoteCommunicationClient::SetDetachOnError(bool enable) {
|
|
char packet[32];
|
|
const int packet_len = ::snprintf(packet, sizeof(packet),
|
|
"QSetDetachOnError:%i", enable ? 1 : 0);
|
|
assert(packet_len < (int)sizeof(packet));
|
|
UNUSED_IF_ASSERT_DISABLED(packet_len);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet, response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsOKResponse())
|
|
return 0;
|
|
uint8_t error = response.GetError();
|
|
if (error)
|
|
return error;
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::DecodeProcessInfoResponse(
|
|
StringExtractorGDBRemote &response, ProcessInstanceInfo &process_info) {
|
|
if (response.IsNormalResponse()) {
|
|
llvm::StringRef name;
|
|
llvm::StringRef value;
|
|
StringExtractor extractor;
|
|
|
|
uint32_t cpu = LLDB_INVALID_CPUTYPE;
|
|
uint32_t sub = 0;
|
|
std::string vendor;
|
|
std::string os_type;
|
|
|
|
while (response.GetNameColonValue(name, value)) {
|
|
if (name.equals("pid")) {
|
|
lldb::pid_t pid = LLDB_INVALID_PROCESS_ID;
|
|
value.getAsInteger(0, pid);
|
|
process_info.SetProcessID(pid);
|
|
} else if (name.equals("ppid")) {
|
|
lldb::pid_t pid = LLDB_INVALID_PROCESS_ID;
|
|
value.getAsInteger(0, pid);
|
|
process_info.SetParentProcessID(pid);
|
|
} else if (name.equals("uid")) {
|
|
uint32_t uid = UINT32_MAX;
|
|
value.getAsInteger(0, uid);
|
|
process_info.SetUserID(uid);
|
|
} else if (name.equals("euid")) {
|
|
uint32_t uid = UINT32_MAX;
|
|
value.getAsInteger(0, uid);
|
|
process_info.SetEffectiveGroupID(uid);
|
|
} else if (name.equals("gid")) {
|
|
uint32_t gid = UINT32_MAX;
|
|
value.getAsInteger(0, gid);
|
|
process_info.SetGroupID(gid);
|
|
} else if (name.equals("egid")) {
|
|
uint32_t gid = UINT32_MAX;
|
|
value.getAsInteger(0, gid);
|
|
process_info.SetEffectiveGroupID(gid);
|
|
} else if (name.equals("triple")) {
|
|
StringExtractor extractor(value);
|
|
std::string triple;
|
|
extractor.GetHexByteString(triple);
|
|
process_info.GetArchitecture().SetTriple(triple.c_str());
|
|
} else if (name.equals("name")) {
|
|
StringExtractor extractor(value);
|
|
// The process name from ASCII hex bytes since we can't control the
|
|
// characters in a process name
|
|
std::string name;
|
|
extractor.GetHexByteString(name);
|
|
process_info.GetExecutableFile().SetFile(name, FileSpec::Style::native);
|
|
} else if (name.equals("cputype")) {
|
|
value.getAsInteger(0, cpu);
|
|
} else if (name.equals("cpusubtype")) {
|
|
value.getAsInteger(0, sub);
|
|
} else if (name.equals("vendor")) {
|
|
vendor = value;
|
|
} else if (name.equals("ostype")) {
|
|
os_type = value;
|
|
}
|
|
}
|
|
|
|
if (cpu != LLDB_INVALID_CPUTYPE && !vendor.empty() && !os_type.empty()) {
|
|
if (vendor == "apple") {
|
|
process_info.GetArchitecture().SetArchitecture(eArchTypeMachO, cpu,
|
|
sub);
|
|
process_info.GetArchitecture().GetTriple().setVendorName(
|
|
llvm::StringRef(vendor));
|
|
process_info.GetArchitecture().GetTriple().setOSName(
|
|
llvm::StringRef(os_type));
|
|
}
|
|
}
|
|
|
|
if (process_info.GetProcessID() != LLDB_INVALID_PROCESS_ID)
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::GetProcessInfo(
|
|
lldb::pid_t pid, ProcessInstanceInfo &process_info) {
|
|
process_info.Clear();
|
|
|
|
if (m_supports_qProcessInfoPID) {
|
|
char packet[32];
|
|
const int packet_len =
|
|
::snprintf(packet, sizeof(packet), "qProcessInfoPID:%" PRIu64, pid);
|
|
assert(packet_len < (int)sizeof(packet));
|
|
UNUSED_IF_ASSERT_DISABLED(packet_len);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet, response, false) ==
|
|
PacketResult::Success) {
|
|
return DecodeProcessInfoResponse(response, process_info);
|
|
} else {
|
|
m_supports_qProcessInfoPID = false;
|
|
return false;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::GetCurrentProcessInfo(bool allow_lazy) {
|
|
Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_PROCESS |
|
|
GDBR_LOG_PACKETS));
|
|
|
|
if (allow_lazy) {
|
|
if (m_qProcessInfo_is_valid == eLazyBoolYes)
|
|
return true;
|
|
if (m_qProcessInfo_is_valid == eLazyBoolNo)
|
|
return false;
|
|
}
|
|
|
|
GetHostInfo();
|
|
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse("qProcessInfo", response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsNormalResponse()) {
|
|
llvm::StringRef name;
|
|
llvm::StringRef value;
|
|
uint32_t cpu = LLDB_INVALID_CPUTYPE;
|
|
uint32_t sub = 0;
|
|
std::string arch_name;
|
|
std::string os_name;
|
|
std::string environment;
|
|
std::string vendor_name;
|
|
std::string triple;
|
|
std::string elf_abi;
|
|
uint32_t pointer_byte_size = 0;
|
|
StringExtractor extractor;
|
|
ByteOrder byte_order = eByteOrderInvalid;
|
|
uint32_t num_keys_decoded = 0;
|
|
lldb::pid_t pid = LLDB_INVALID_PROCESS_ID;
|
|
while (response.GetNameColonValue(name, value)) {
|
|
if (name.equals("cputype")) {
|
|
if (!value.getAsInteger(16, cpu))
|
|
++num_keys_decoded;
|
|
} else if (name.equals("cpusubtype")) {
|
|
if (!value.getAsInteger(16, sub))
|
|
++num_keys_decoded;
|
|
} else if (name.equals("triple")) {
|
|
StringExtractor extractor(value);
|
|
extractor.GetHexByteString(triple);
|
|
++num_keys_decoded;
|
|
} else if (name.equals("ostype")) {
|
|
if (value.equals("maccatalyst")) {
|
|
os_name = "ios";
|
|
environment = "macabi";
|
|
} else
|
|
os_name = value;
|
|
++num_keys_decoded;
|
|
} else if (name.equals("vendor")) {
|
|
vendor_name = value;
|
|
++num_keys_decoded;
|
|
} else if (name.equals("endian")) {
|
|
byte_order = llvm::StringSwitch<lldb::ByteOrder>(value)
|
|
.Case("little", eByteOrderLittle)
|
|
.Case("big", eByteOrderBig)
|
|
.Case("pdp", eByteOrderPDP)
|
|
.Default(eByteOrderInvalid);
|
|
if (byte_order != eByteOrderInvalid)
|
|
++num_keys_decoded;
|
|
} else if (name.equals("ptrsize")) {
|
|
if (!value.getAsInteger(16, pointer_byte_size))
|
|
++num_keys_decoded;
|
|
} else if (name.equals("pid")) {
|
|
if (!value.getAsInteger(16, pid))
|
|
++num_keys_decoded;
|
|
} else if (name.equals("elf_abi")) {
|
|
elf_abi = value;
|
|
++num_keys_decoded;
|
|
}
|
|
}
|
|
if (num_keys_decoded > 0)
|
|
m_qProcessInfo_is_valid = eLazyBoolYes;
|
|
if (pid != LLDB_INVALID_PROCESS_ID) {
|
|
m_curr_pid_is_valid = eLazyBoolYes;
|
|
m_curr_pid = pid;
|
|
}
|
|
|
|
// Set the ArchSpec from the triple if we have it.
|
|
if (!triple.empty()) {
|
|
m_process_arch.SetTriple(triple.c_str());
|
|
m_process_arch.SetFlags(elf_abi);
|
|
if (pointer_byte_size) {
|
|
assert(pointer_byte_size == m_process_arch.GetAddressByteSize());
|
|
}
|
|
} else if (cpu != LLDB_INVALID_CPUTYPE && !os_name.empty() &&
|
|
!vendor_name.empty()) {
|
|
llvm::Triple triple(llvm::Twine("-") + vendor_name + "-" + os_name);
|
|
if (!environment.empty())
|
|
triple.setEnvironmentName(environment);
|
|
|
|
assert(triple.getObjectFormat() != llvm::Triple::UnknownObjectFormat);
|
|
assert(triple.getObjectFormat() != llvm::Triple::Wasm);
|
|
assert(triple.getObjectFormat() != llvm::Triple::XCOFF);
|
|
switch (triple.getObjectFormat()) {
|
|
case llvm::Triple::MachO:
|
|
m_process_arch.SetArchitecture(eArchTypeMachO, cpu, sub);
|
|
break;
|
|
case llvm::Triple::ELF:
|
|
m_process_arch.SetArchitecture(eArchTypeELF, cpu, sub);
|
|
break;
|
|
case llvm::Triple::COFF:
|
|
m_process_arch.SetArchitecture(eArchTypeCOFF, cpu, sub);
|
|
break;
|
|
case llvm::Triple::Wasm:
|
|
case llvm::Triple::XCOFF:
|
|
LLDB_LOGF(log, "error: not supported target architecture");
|
|
return false;
|
|
case llvm::Triple::UnknownObjectFormat:
|
|
LLDB_LOGF(log, "error: failed to determine target architecture");
|
|
return false;
|
|
}
|
|
|
|
if (pointer_byte_size) {
|
|
assert(pointer_byte_size == m_process_arch.GetAddressByteSize());
|
|
}
|
|
if (byte_order != eByteOrderInvalid) {
|
|
assert(byte_order == m_process_arch.GetByteOrder());
|
|
}
|
|
m_process_arch.GetTriple().setVendorName(llvm::StringRef(vendor_name));
|
|
m_process_arch.GetTriple().setOSName(llvm::StringRef(os_name));
|
|
m_process_arch.GetTriple().setEnvironmentName(llvm::StringRef(environment));
|
|
m_host_arch.GetTriple().setVendorName(llvm::StringRef(vendor_name));
|
|
m_host_arch.GetTriple().setOSName(llvm::StringRef(os_name));
|
|
m_host_arch.GetTriple().setEnvironmentName(llvm::StringRef(environment));
|
|
}
|
|
return true;
|
|
}
|
|
} else {
|
|
m_qProcessInfo_is_valid = eLazyBoolNo;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
uint32_t GDBRemoteCommunicationClient::FindProcesses(
|
|
const ProcessInstanceInfoMatch &match_info,
|
|
ProcessInstanceInfoList &process_infos) {
|
|
process_infos.Clear();
|
|
|
|
if (m_supports_qfProcessInfo) {
|
|
StreamString packet;
|
|
packet.PutCString("qfProcessInfo");
|
|
if (!match_info.MatchAllProcesses()) {
|
|
packet.PutChar(':');
|
|
const char *name = match_info.GetProcessInfo().GetName();
|
|
bool has_name_match = false;
|
|
if (name && name[0]) {
|
|
has_name_match = true;
|
|
NameMatch name_match_type = match_info.GetNameMatchType();
|
|
switch (name_match_type) {
|
|
case NameMatch::Ignore:
|
|
has_name_match = false;
|
|
break;
|
|
|
|
case NameMatch::Equals:
|
|
packet.PutCString("name_match:equals;");
|
|
break;
|
|
|
|
case NameMatch::Contains:
|
|
packet.PutCString("name_match:contains;");
|
|
break;
|
|
|
|
case NameMatch::StartsWith:
|
|
packet.PutCString("name_match:starts_with;");
|
|
break;
|
|
|
|
case NameMatch::EndsWith:
|
|
packet.PutCString("name_match:ends_with;");
|
|
break;
|
|
|
|
case NameMatch::RegularExpression:
|
|
packet.PutCString("name_match:regex;");
|
|
break;
|
|
}
|
|
if (has_name_match) {
|
|
packet.PutCString("name:");
|
|
packet.PutBytesAsRawHex8(name, ::strlen(name));
|
|
packet.PutChar(';');
|
|
}
|
|
}
|
|
|
|
if (match_info.GetProcessInfo().ProcessIDIsValid())
|
|
packet.Printf("pid:%" PRIu64 ";",
|
|
match_info.GetProcessInfo().GetProcessID());
|
|
if (match_info.GetProcessInfo().ParentProcessIDIsValid())
|
|
packet.Printf("parent_pid:%" PRIu64 ";",
|
|
match_info.GetProcessInfo().GetParentProcessID());
|
|
if (match_info.GetProcessInfo().UserIDIsValid())
|
|
packet.Printf("uid:%u;", match_info.GetProcessInfo().GetUserID());
|
|
if (match_info.GetProcessInfo().GroupIDIsValid())
|
|
packet.Printf("gid:%u;", match_info.GetProcessInfo().GetGroupID());
|
|
if (match_info.GetProcessInfo().EffectiveUserIDIsValid())
|
|
packet.Printf("euid:%u;",
|
|
match_info.GetProcessInfo().GetEffectiveUserID());
|
|
if (match_info.GetProcessInfo().EffectiveGroupIDIsValid())
|
|
packet.Printf("egid:%u;",
|
|
match_info.GetProcessInfo().GetEffectiveGroupID());
|
|
if (match_info.GetProcessInfo().EffectiveGroupIDIsValid())
|
|
packet.Printf("all_users:%u;", match_info.GetMatchAllUsers() ? 1 : 0);
|
|
if (match_info.GetProcessInfo().GetArchitecture().IsValid()) {
|
|
const ArchSpec &match_arch =
|
|
match_info.GetProcessInfo().GetArchitecture();
|
|
const llvm::Triple &triple = match_arch.GetTriple();
|
|
packet.PutCString("triple:");
|
|
packet.PutCString(triple.getTriple());
|
|
packet.PutChar(';');
|
|
}
|
|
}
|
|
StringExtractorGDBRemote response;
|
|
// Increase timeout as the first qfProcessInfo packet takes a long time on
|
|
// Android. The value of 1min was arrived at empirically.
|
|
ScopedTimeout timeout(*this, minutes(1));
|
|
if (SendPacketAndWaitForResponse(packet.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
do {
|
|
ProcessInstanceInfo process_info;
|
|
if (!DecodeProcessInfoResponse(response, process_info))
|
|
break;
|
|
process_infos.Append(process_info);
|
|
response = StringExtractorGDBRemote();
|
|
} while (SendPacketAndWaitForResponse("qsProcessInfo", response, false) ==
|
|
PacketResult::Success);
|
|
} else {
|
|
m_supports_qfProcessInfo = false;
|
|
return 0;
|
|
}
|
|
}
|
|
return process_infos.GetSize();
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::GetUserName(uint32_t uid,
|
|
std::string &name) {
|
|
if (m_supports_qUserName) {
|
|
char packet[32];
|
|
const int packet_len =
|
|
::snprintf(packet, sizeof(packet), "qUserName:%i", uid);
|
|
assert(packet_len < (int)sizeof(packet));
|
|
UNUSED_IF_ASSERT_DISABLED(packet_len);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet, response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsNormalResponse()) {
|
|
// Make sure we parsed the right number of characters. The response is
|
|
// the hex encoded user name and should make up the entire packet. If
|
|
// there are any non-hex ASCII bytes, the length won't match below..
|
|
if (response.GetHexByteString(name) * 2 ==
|
|
response.GetStringRef().size())
|
|
return true;
|
|
}
|
|
} else {
|
|
m_supports_qUserName = false;
|
|
return false;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::GetGroupName(uint32_t gid,
|
|
std::string &name) {
|
|
if (m_supports_qGroupName) {
|
|
char packet[32];
|
|
const int packet_len =
|
|
::snprintf(packet, sizeof(packet), "qGroupName:%i", gid);
|
|
assert(packet_len < (int)sizeof(packet));
|
|
UNUSED_IF_ASSERT_DISABLED(packet_len);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet, response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsNormalResponse()) {
|
|
// Make sure we parsed the right number of characters. The response is
|
|
// the hex encoded group name and should make up the entire packet. If
|
|
// there are any non-hex ASCII bytes, the length won't match below..
|
|
if (response.GetHexByteString(name) * 2 ==
|
|
response.GetStringRef().size())
|
|
return true;
|
|
}
|
|
} else {
|
|
m_supports_qGroupName = false;
|
|
return false;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::SetNonStopMode(const bool enable) {
|
|
// Form non-stop packet request
|
|
char packet[32];
|
|
const int packet_len =
|
|
::snprintf(packet, sizeof(packet), "QNonStop:%1d", (int)enable);
|
|
assert(packet_len < (int)sizeof(packet));
|
|
UNUSED_IF_ASSERT_DISABLED(packet_len);
|
|
|
|
StringExtractorGDBRemote response;
|
|
// Send to target
|
|
if (SendPacketAndWaitForResponse(packet, response, false) ==
|
|
PacketResult::Success)
|
|
if (response.IsOKResponse())
|
|
return true;
|
|
|
|
// Failed or not supported
|
|
return false;
|
|
}
|
|
|
|
static void MakeSpeedTestPacket(StreamString &packet, uint32_t send_size,
|
|
uint32_t recv_size) {
|
|
packet.Clear();
|
|
packet.Printf("qSpeedTest:response_size:%i;data:", recv_size);
|
|
uint32_t bytes_left = send_size;
|
|
while (bytes_left > 0) {
|
|
if (bytes_left >= 26) {
|
|
packet.PutCString("abcdefghijklmnopqrstuvwxyz");
|
|
bytes_left -= 26;
|
|
} else {
|
|
packet.Printf("%*.*s;", bytes_left, bytes_left,
|
|
"abcdefghijklmnopqrstuvwxyz");
|
|
bytes_left = 0;
|
|
}
|
|
}
|
|
}
|
|
|
|
duration<float>
|
|
calculate_standard_deviation(const std::vector<duration<float>> &v) {
|
|
using Dur = duration<float>;
|
|
Dur sum = std::accumulate(std::begin(v), std::end(v), Dur());
|
|
Dur mean = sum / v.size();
|
|
float accum = 0;
|
|
for (auto d : v) {
|
|
float delta = (d - mean).count();
|
|
accum += delta * delta;
|
|
};
|
|
|
|
return Dur(sqrtf(accum / (v.size() - 1)));
|
|
}
|
|
|
|
void GDBRemoteCommunicationClient::TestPacketSpeed(const uint32_t num_packets,
|
|
uint32_t max_send,
|
|
uint32_t max_recv,
|
|
uint64_t recv_amount,
|
|
bool json, Stream &strm) {
|
|
uint32_t i;
|
|
if (SendSpeedTestPacket(0, 0)) {
|
|
StreamString packet;
|
|
if (json)
|
|
strm.Printf("{ \"packet_speeds\" : {\n \"num_packets\" : %u,\n "
|
|
"\"results\" : [",
|
|
num_packets);
|
|
else
|
|
strm.Printf("Testing sending %u packets of various sizes:\n",
|
|
num_packets);
|
|
strm.Flush();
|
|
|
|
uint32_t result_idx = 0;
|
|
uint32_t send_size;
|
|
std::vector<duration<float>> packet_times;
|
|
|
|
for (send_size = 0; send_size <= max_send;
|
|
send_size ? send_size *= 2 : send_size = 4) {
|
|
for (uint32_t recv_size = 0; recv_size <= max_recv;
|
|
recv_size ? recv_size *= 2 : recv_size = 4) {
|
|
MakeSpeedTestPacket(packet, send_size, recv_size);
|
|
|
|
packet_times.clear();
|
|
// Test how long it takes to send 'num_packets' packets
|
|
const auto start_time = steady_clock::now();
|
|
for (i = 0; i < num_packets; ++i) {
|
|
const auto packet_start_time = steady_clock::now();
|
|
StringExtractorGDBRemote response;
|
|
SendPacketAndWaitForResponse(packet.GetString(), response, false);
|
|
const auto packet_end_time = steady_clock::now();
|
|
packet_times.push_back(packet_end_time - packet_start_time);
|
|
}
|
|
const auto end_time = steady_clock::now();
|
|
const auto total_time = end_time - start_time;
|
|
|
|
float packets_per_second =
|
|
((float)num_packets) / duration<float>(total_time).count();
|
|
auto average_per_packet = total_time / num_packets;
|
|
const duration<float> standard_deviation =
|
|
calculate_standard_deviation(packet_times);
|
|
if (json) {
|
|
strm.Format("{0}\n {{\"send_size\" : {1,6}, \"recv_size\" : "
|
|
"{2,6}, \"total_time_nsec\" : {3,12:ns-}, "
|
|
"\"standard_deviation_nsec\" : {4,9:ns-f0}}",
|
|
result_idx > 0 ? "," : "", send_size, recv_size,
|
|
total_time, standard_deviation);
|
|
++result_idx;
|
|
} else {
|
|
strm.Format("qSpeedTest(send={0,7}, recv={1,7}) in {2:s+f9} for "
|
|
"{3,9:f2} packets/s ({4,10:ms+f6} per packet) with "
|
|
"standard deviation of {5,10:ms+f6}\n",
|
|
send_size, recv_size, duration<float>(total_time),
|
|
packets_per_second, duration<float>(average_per_packet),
|
|
standard_deviation);
|
|
}
|
|
strm.Flush();
|
|
}
|
|
}
|
|
|
|
const float k_recv_amount_mb = (float)recv_amount / (1024.0f * 1024.0f);
|
|
if (json)
|
|
strm.Printf("\n ]\n },\n \"download_speed\" : {\n \"byte_size\" "
|
|
": %" PRIu64 ",\n \"results\" : [",
|
|
recv_amount);
|
|
else
|
|
strm.Printf("Testing receiving %2.1fMB of data using varying receive "
|
|
"packet sizes:\n",
|
|
k_recv_amount_mb);
|
|
strm.Flush();
|
|
send_size = 0;
|
|
result_idx = 0;
|
|
for (uint32_t recv_size = 32; recv_size <= max_recv; recv_size *= 2) {
|
|
MakeSpeedTestPacket(packet, send_size, recv_size);
|
|
|
|
// If we have a receive size, test how long it takes to receive 4MB of
|
|
// data
|
|
if (recv_size > 0) {
|
|
const auto start_time = steady_clock::now();
|
|
uint32_t bytes_read = 0;
|
|
uint32_t packet_count = 0;
|
|
while (bytes_read < recv_amount) {
|
|
StringExtractorGDBRemote response;
|
|
SendPacketAndWaitForResponse(packet.GetString(), response, false);
|
|
bytes_read += recv_size;
|
|
++packet_count;
|
|
}
|
|
const auto end_time = steady_clock::now();
|
|
const auto total_time = end_time - start_time;
|
|
float mb_second = ((float)recv_amount) /
|
|
duration<float>(total_time).count() /
|
|
(1024.0 * 1024.0);
|
|
float packets_per_second =
|
|
((float)packet_count) / duration<float>(total_time).count();
|
|
const auto average_per_packet = total_time / packet_count;
|
|
|
|
if (json) {
|
|
strm.Format("{0}\n {{\"send_size\" : {1,6}, \"recv_size\" : "
|
|
"{2,6}, \"total_time_nsec\" : {3,12:ns-}}",
|
|
result_idx > 0 ? "," : "", send_size, recv_size,
|
|
total_time);
|
|
++result_idx;
|
|
} else {
|
|
strm.Format("qSpeedTest(send={0,7}, recv={1,7}) {2,6} packets needed "
|
|
"to receive {3:f1}MB in {4:s+f9} for {5} MB/sec for "
|
|
"{6,9:f2} packets/sec ({7,10:ms+f6} per packet)\n",
|
|
send_size, recv_size, packet_count, k_recv_amount_mb,
|
|
duration<float>(total_time), mb_second,
|
|
packets_per_second, duration<float>(average_per_packet));
|
|
}
|
|
strm.Flush();
|
|
}
|
|
}
|
|
if (json)
|
|
strm.Printf("\n ]\n }\n}\n");
|
|
else
|
|
strm.EOL();
|
|
}
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::SendSpeedTestPacket(uint32_t send_size,
|
|
uint32_t recv_size) {
|
|
StreamString packet;
|
|
packet.Printf("qSpeedTest:response_size:%i;data:", recv_size);
|
|
uint32_t bytes_left = send_size;
|
|
while (bytes_left > 0) {
|
|
if (bytes_left >= 26) {
|
|
packet.PutCString("abcdefghijklmnopqrstuvwxyz");
|
|
bytes_left -= 26;
|
|
} else {
|
|
packet.Printf("%*.*s;", bytes_left, bytes_left,
|
|
"abcdefghijklmnopqrstuvwxyz");
|
|
bytes_left = 0;
|
|
}
|
|
}
|
|
|
|
StringExtractorGDBRemote response;
|
|
return SendPacketAndWaitForResponse(packet.GetString(), response, false) ==
|
|
PacketResult::Success;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::LaunchGDBServer(
|
|
const char *remote_accept_hostname, lldb::pid_t &pid, uint16_t &port,
|
|
std::string &socket_name) {
|
|
pid = LLDB_INVALID_PROCESS_ID;
|
|
port = 0;
|
|
socket_name.clear();
|
|
|
|
StringExtractorGDBRemote response;
|
|
StreamString stream;
|
|
stream.PutCString("qLaunchGDBServer;");
|
|
std::string hostname;
|
|
if (remote_accept_hostname && remote_accept_hostname[0])
|
|
hostname = remote_accept_hostname;
|
|
else {
|
|
if (HostInfo::GetHostname(hostname)) {
|
|
// Make the GDB server we launch only accept connections from this host
|
|
stream.Printf("host:%s;", hostname.c_str());
|
|
} else {
|
|
// Make the GDB server we launch accept connections from any host since
|
|
// we can't figure out the hostname
|
|
stream.Printf("host:*;");
|
|
}
|
|
}
|
|
// give the process a few seconds to startup
|
|
ScopedTimeout timeout(*this, seconds(10));
|
|
|
|
if (SendPacketAndWaitForResponse(stream.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
llvm::StringRef name;
|
|
llvm::StringRef value;
|
|
while (response.GetNameColonValue(name, value)) {
|
|
if (name.equals("port"))
|
|
value.getAsInteger(0, port);
|
|
else if (name.equals("pid"))
|
|
value.getAsInteger(0, pid);
|
|
else if (name.compare("socket_name") == 0) {
|
|
StringExtractor extractor(value);
|
|
extractor.GetHexByteString(socket_name);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
size_t GDBRemoteCommunicationClient::QueryGDBServer(
|
|
std::vector<std::pair<uint16_t, std::string>> &connection_urls) {
|
|
connection_urls.clear();
|
|
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse("qQueryGDBServer", response, false) !=
|
|
PacketResult::Success)
|
|
return 0;
|
|
|
|
StructuredData::ObjectSP data =
|
|
StructuredData::ParseJSON(response.GetStringRef());
|
|
if (!data)
|
|
return 0;
|
|
|
|
StructuredData::Array *array = data->GetAsArray();
|
|
if (!array)
|
|
return 0;
|
|
|
|
for (size_t i = 0, count = array->GetSize(); i < count; ++i) {
|
|
StructuredData::Dictionary *element = nullptr;
|
|
if (!array->GetItemAtIndexAsDictionary(i, element))
|
|
continue;
|
|
|
|
uint16_t port = 0;
|
|
if (StructuredData::ObjectSP port_osp =
|
|
element->GetValueForKey(llvm::StringRef("port")))
|
|
port = port_osp->GetIntegerValue(0);
|
|
|
|
std::string socket_name;
|
|
if (StructuredData::ObjectSP socket_name_osp =
|
|
element->GetValueForKey(llvm::StringRef("socket_name")))
|
|
socket_name = socket_name_osp->GetStringValue();
|
|
|
|
if (port != 0 || !socket_name.empty())
|
|
connection_urls.emplace_back(port, socket_name);
|
|
}
|
|
return connection_urls.size();
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::KillSpawnedProcess(lldb::pid_t pid) {
|
|
StreamString stream;
|
|
stream.Printf("qKillSpawnedProcess:%" PRId64, pid);
|
|
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(stream.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsOKResponse())
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::SetCurrentThread(uint64_t tid) {
|
|
if (m_curr_tid == tid)
|
|
return true;
|
|
|
|
char packet[32];
|
|
int packet_len;
|
|
if (tid == UINT64_MAX)
|
|
packet_len = ::snprintf(packet, sizeof(packet), "Hg-1");
|
|
else
|
|
packet_len = ::snprintf(packet, sizeof(packet), "Hg%" PRIx64, tid);
|
|
assert(packet_len + 1 < (int)sizeof(packet));
|
|
UNUSED_IF_ASSERT_DISABLED(packet_len);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet, response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsOKResponse()) {
|
|
m_curr_tid = tid;
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* Connected bare-iron target (like YAMON gdb-stub) may not have support for
|
|
* Hg packet.
|
|
* The reply from '?' packet could be as simple as 'S05'. There is no packet
|
|
* which can
|
|
* give us pid and/or tid. Assume pid=tid=1 in such cases.
|
|
*/
|
|
if (response.IsUnsupportedResponse() && IsConnected()) {
|
|
m_curr_tid = 1;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::SetCurrentThreadForRun(uint64_t tid) {
|
|
if (m_curr_tid_run == tid)
|
|
return true;
|
|
|
|
char packet[32];
|
|
int packet_len;
|
|
if (tid == UINT64_MAX)
|
|
packet_len = ::snprintf(packet, sizeof(packet), "Hc-1");
|
|
else
|
|
packet_len = ::snprintf(packet, sizeof(packet), "Hc%" PRIx64, tid);
|
|
|
|
assert(packet_len + 1 < (int)sizeof(packet));
|
|
UNUSED_IF_ASSERT_DISABLED(packet_len);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet, response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsOKResponse()) {
|
|
m_curr_tid_run = tid;
|
|
return true;
|
|
}
|
|
|
|
/*
|
|
* Connected bare-iron target (like YAMON gdb-stub) may not have support for
|
|
* Hc packet.
|
|
* The reply from '?' packet could be as simple as 'S05'. There is no packet
|
|
* which can
|
|
* give us pid and/or tid. Assume pid=tid=1 in such cases.
|
|
*/
|
|
if (response.IsUnsupportedResponse() && IsConnected()) {
|
|
m_curr_tid_run = 1;
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::GetStopReply(
|
|
StringExtractorGDBRemote &response) {
|
|
if (SendPacketAndWaitForResponse("?", response, false) ==
|
|
PacketResult::Success)
|
|
return response.IsNormalResponse();
|
|
return false;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::GetThreadStopInfo(
|
|
lldb::tid_t tid, StringExtractorGDBRemote &response) {
|
|
if (m_supports_qThreadStopInfo) {
|
|
char packet[256];
|
|
int packet_len =
|
|
::snprintf(packet, sizeof(packet), "qThreadStopInfo%" PRIx64, tid);
|
|
assert(packet_len < (int)sizeof(packet));
|
|
UNUSED_IF_ASSERT_DISABLED(packet_len);
|
|
if (SendPacketAndWaitForResponse(packet, response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.IsUnsupportedResponse())
|
|
m_supports_qThreadStopInfo = false;
|
|
else if (response.IsNormalResponse())
|
|
return true;
|
|
else
|
|
return false;
|
|
} else {
|
|
m_supports_qThreadStopInfo = false;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
uint8_t GDBRemoteCommunicationClient::SendGDBStoppointTypePacket(
|
|
GDBStoppointType type, bool insert, addr_t addr, uint32_t length) {
|
|
Log *log(GetLogIfAnyCategoriesSet(LIBLLDB_LOG_BREAKPOINTS));
|
|
LLDB_LOGF(log, "GDBRemoteCommunicationClient::%s() %s at addr = 0x%" PRIx64,
|
|
__FUNCTION__, insert ? "add" : "remove", addr);
|
|
|
|
// Check if the stub is known not to support this breakpoint type
|
|
if (!SupportsGDBStoppointPacket(type))
|
|
return UINT8_MAX;
|
|
// Construct the breakpoint packet
|
|
char packet[64];
|
|
const int packet_len =
|
|
::snprintf(packet, sizeof(packet), "%c%i,%" PRIx64 ",%x",
|
|
insert ? 'Z' : 'z', type, addr, length);
|
|
// Check we haven't overwritten the end of the packet buffer
|
|
assert(packet_len + 1 < (int)sizeof(packet));
|
|
UNUSED_IF_ASSERT_DISABLED(packet_len);
|
|
StringExtractorGDBRemote response;
|
|
// Make sure the response is either "OK", "EXX" where XX are two hex digits,
|
|
// or "" (unsupported)
|
|
response.SetResponseValidatorToOKErrorNotSupported();
|
|
// Try to send the breakpoint packet, and check that it was correctly sent
|
|
if (SendPacketAndWaitForResponse(packet, response, true) ==
|
|
PacketResult::Success) {
|
|
// Receive and OK packet when the breakpoint successfully placed
|
|
if (response.IsOKResponse())
|
|
return 0;
|
|
|
|
// Status while setting breakpoint, send back specific error
|
|
if (response.IsErrorResponse())
|
|
return response.GetError();
|
|
|
|
// Empty packet informs us that breakpoint is not supported
|
|
if (response.IsUnsupportedResponse()) {
|
|
// Disable this breakpoint type since it is unsupported
|
|
switch (type) {
|
|
case eBreakpointSoftware:
|
|
m_supports_z0 = false;
|
|
break;
|
|
case eBreakpointHardware:
|
|
m_supports_z1 = false;
|
|
break;
|
|
case eWatchpointWrite:
|
|
m_supports_z2 = false;
|
|
break;
|
|
case eWatchpointRead:
|
|
m_supports_z3 = false;
|
|
break;
|
|
case eWatchpointReadWrite:
|
|
m_supports_z4 = false;
|
|
break;
|
|
case eStoppointInvalid:
|
|
return UINT8_MAX;
|
|
}
|
|
}
|
|
}
|
|
// Signal generic failure
|
|
return UINT8_MAX;
|
|
}
|
|
|
|
size_t GDBRemoteCommunicationClient::GetCurrentThreadIDs(
|
|
std::vector<lldb::tid_t> &thread_ids, bool &sequence_mutex_unavailable) {
|
|
thread_ids.clear();
|
|
|
|
Lock lock(*this, false);
|
|
if (lock) {
|
|
sequence_mutex_unavailable = false;
|
|
StringExtractorGDBRemote response;
|
|
|
|
PacketResult packet_result;
|
|
for (packet_result =
|
|
SendPacketAndWaitForResponseNoLock("qfThreadInfo", response);
|
|
packet_result == PacketResult::Success && response.IsNormalResponse();
|
|
packet_result =
|
|
SendPacketAndWaitForResponseNoLock("qsThreadInfo", response)) {
|
|
char ch = response.GetChar();
|
|
if (ch == 'l')
|
|
break;
|
|
if (ch == 'm') {
|
|
do {
|
|
tid_t tid = response.GetHexMaxU64(false, LLDB_INVALID_THREAD_ID);
|
|
|
|
if (tid != LLDB_INVALID_THREAD_ID) {
|
|
thread_ids.push_back(tid);
|
|
}
|
|
ch = response.GetChar(); // Skip the command separator
|
|
} while (ch == ','); // Make sure we got a comma separator
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Connected bare-iron target (like YAMON gdb-stub) may not have support for
|
|
* qProcessInfo, qC and qfThreadInfo packets. The reply from '?' packet
|
|
* could
|
|
* be as simple as 'S05'. There is no packet which can give us pid and/or
|
|
* tid.
|
|
* Assume pid=tid=1 in such cases.
|
|
*/
|
|
if ((response.IsUnsupportedResponse() || response.IsNormalResponse()) &&
|
|
thread_ids.size() == 0 && IsConnected()) {
|
|
thread_ids.push_back(1);
|
|
}
|
|
} else {
|
|
#if !defined(LLDB_CONFIGURATION_DEBUG)
|
|
Log *log(ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(GDBR_LOG_PROCESS |
|
|
GDBR_LOG_PACKETS));
|
|
LLDB_LOGF(log, "error: failed to get packet sequence mutex, not sending "
|
|
"packet 'qfThreadInfo'");
|
|
#endif
|
|
sequence_mutex_unavailable = true;
|
|
}
|
|
return thread_ids.size();
|
|
}
|
|
|
|
lldb::addr_t GDBRemoteCommunicationClient::GetShlibInfoAddr() {
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse("qShlibInfoAddr", response, false) !=
|
|
PacketResult::Success ||
|
|
!response.IsNormalResponse())
|
|
return LLDB_INVALID_ADDRESS;
|
|
return response.GetHexMaxU64(false, LLDB_INVALID_ADDRESS);
|
|
}
|
|
|
|
lldb_private::Status GDBRemoteCommunicationClient::RunShellCommand(
|
|
const char *command, // Shouldn't be NULL
|
|
const FileSpec &
|
|
working_dir, // Pass empty FileSpec to use the current working directory
|
|
int *status_ptr, // Pass NULL if you don't want the process exit status
|
|
int *signo_ptr, // Pass NULL if you don't want the signal that caused the
|
|
// process to exit
|
|
std::string
|
|
*command_output, // Pass NULL if you don't want the command output
|
|
const Timeout<std::micro> &timeout) {
|
|
lldb_private::StreamString stream;
|
|
stream.PutCString("qPlatform_shell:");
|
|
stream.PutBytesAsRawHex8(command, strlen(command));
|
|
stream.PutChar(',');
|
|
uint32_t timeout_sec = UINT32_MAX;
|
|
if (timeout) {
|
|
// TODO: Use chrono version of std::ceil once c++17 is available.
|
|
timeout_sec = std::ceil(std::chrono::duration<double>(*timeout).count());
|
|
}
|
|
stream.PutHex32(timeout_sec);
|
|
if (working_dir) {
|
|
std::string path{working_dir.GetPath(false)};
|
|
stream.PutChar(',');
|
|
stream.PutStringAsRawHex8(path);
|
|
}
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(stream.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.GetChar() != 'F')
|
|
return Status("malformed reply");
|
|
if (response.GetChar() != ',')
|
|
return Status("malformed reply");
|
|
uint32_t exitcode = response.GetHexMaxU32(false, UINT32_MAX);
|
|
if (exitcode == UINT32_MAX)
|
|
return Status("unable to run remote process");
|
|
else if (status_ptr)
|
|
*status_ptr = exitcode;
|
|
if (response.GetChar() != ',')
|
|
return Status("malformed reply");
|
|
uint32_t signo = response.GetHexMaxU32(false, UINT32_MAX);
|
|
if (signo_ptr)
|
|
*signo_ptr = signo;
|
|
if (response.GetChar() != ',')
|
|
return Status("malformed reply");
|
|
std::string output;
|
|
response.GetEscapedBinaryData(output);
|
|
if (command_output)
|
|
command_output->assign(output);
|
|
return Status();
|
|
}
|
|
return Status("unable to send packet");
|
|
}
|
|
|
|
Status GDBRemoteCommunicationClient::MakeDirectory(const FileSpec &file_spec,
|
|
uint32_t file_permissions) {
|
|
std::string path{file_spec.GetPath(false)};
|
|
lldb_private::StreamString stream;
|
|
stream.PutCString("qPlatform_mkdir:");
|
|
stream.PutHex32(file_permissions);
|
|
stream.PutChar(',');
|
|
stream.PutStringAsRawHex8(path);
|
|
llvm::StringRef packet = stream.GetString();
|
|
StringExtractorGDBRemote response;
|
|
|
|
if (SendPacketAndWaitForResponse(packet, response, false) !=
|
|
PacketResult::Success)
|
|
return Status("failed to send '%s' packet", packet.str().c_str());
|
|
|
|
if (response.GetChar() != 'F')
|
|
return Status("invalid response to '%s' packet", packet.str().c_str());
|
|
|
|
return Status(response.GetU32(UINT32_MAX), eErrorTypePOSIX);
|
|
}
|
|
|
|
Status
|
|
GDBRemoteCommunicationClient::SetFilePermissions(const FileSpec &file_spec,
|
|
uint32_t file_permissions) {
|
|
std::string path{file_spec.GetPath(false)};
|
|
lldb_private::StreamString stream;
|
|
stream.PutCString("qPlatform_chmod:");
|
|
stream.PutHex32(file_permissions);
|
|
stream.PutChar(',');
|
|
stream.PutStringAsRawHex8(path);
|
|
llvm::StringRef packet = stream.GetString();
|
|
StringExtractorGDBRemote response;
|
|
|
|
if (SendPacketAndWaitForResponse(packet, response, false) !=
|
|
PacketResult::Success)
|
|
return Status("failed to send '%s' packet", stream.GetData());
|
|
|
|
if (response.GetChar() != 'F')
|
|
return Status("invalid response to '%s' packet", stream.GetData());
|
|
|
|
return Status(response.GetU32(UINT32_MAX), eErrorTypePOSIX);
|
|
}
|
|
|
|
static uint64_t ParseHostIOPacketResponse(StringExtractorGDBRemote &response,
|
|
uint64_t fail_result, Status &error) {
|
|
response.SetFilePos(0);
|
|
if (response.GetChar() != 'F')
|
|
return fail_result;
|
|
int32_t result = response.GetS32(-2);
|
|
if (result == -2)
|
|
return fail_result;
|
|
if (response.GetChar() == ',') {
|
|
int result_errno = response.GetS32(-2);
|
|
if (result_errno != -2)
|
|
error.SetError(result_errno, eErrorTypePOSIX);
|
|
else
|
|
error.SetError(-1, eErrorTypeGeneric);
|
|
} else
|
|
error.Clear();
|
|
return result;
|
|
}
|
|
lldb::user_id_t
|
|
GDBRemoteCommunicationClient::OpenFile(const lldb_private::FileSpec &file_spec,
|
|
uint32_t flags, mode_t mode,
|
|
Status &error) {
|
|
std::string path(file_spec.GetPath(false));
|
|
lldb_private::StreamString stream;
|
|
stream.PutCString("vFile:open:");
|
|
if (path.empty())
|
|
return UINT64_MAX;
|
|
stream.PutStringAsRawHex8(path);
|
|
stream.PutChar(',');
|
|
stream.PutHex32(flags);
|
|
stream.PutChar(',');
|
|
stream.PutHex32(mode);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(stream.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
return ParseHostIOPacketResponse(response, UINT64_MAX, error);
|
|
}
|
|
return UINT64_MAX;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::CloseFile(lldb::user_id_t fd,
|
|
Status &error) {
|
|
lldb_private::StreamString stream;
|
|
stream.Printf("vFile:close:%i", (int)fd);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(stream.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
return ParseHostIOPacketResponse(response, -1, error) == 0;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// Extension of host I/O packets to get the file size.
|
|
lldb::user_id_t GDBRemoteCommunicationClient::GetFileSize(
|
|
const lldb_private::FileSpec &file_spec) {
|
|
std::string path(file_spec.GetPath(false));
|
|
lldb_private::StreamString stream;
|
|
stream.PutCString("vFile:size:");
|
|
stream.PutStringAsRawHex8(path);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(stream.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.GetChar() != 'F')
|
|
return UINT64_MAX;
|
|
uint32_t retcode = response.GetHexMaxU64(false, UINT64_MAX);
|
|
return retcode;
|
|
}
|
|
return UINT64_MAX;
|
|
}
|
|
|
|
Status
|
|
GDBRemoteCommunicationClient::GetFilePermissions(const FileSpec &file_spec,
|
|
uint32_t &file_permissions) {
|
|
std::string path{file_spec.GetPath(false)};
|
|
Status error;
|
|
lldb_private::StreamString stream;
|
|
stream.PutCString("vFile:mode:");
|
|
stream.PutStringAsRawHex8(path);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(stream.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.GetChar() != 'F') {
|
|
error.SetErrorStringWithFormat("invalid response to '%s' packet",
|
|
stream.GetData());
|
|
} else {
|
|
const uint32_t mode = response.GetS32(-1);
|
|
if (static_cast<int32_t>(mode) == -1) {
|
|
if (response.GetChar() == ',') {
|
|
int response_errno = response.GetS32(-1);
|
|
if (response_errno > 0)
|
|
error.SetError(response_errno, lldb::eErrorTypePOSIX);
|
|
else
|
|
error.SetErrorToGenericError();
|
|
} else
|
|
error.SetErrorToGenericError();
|
|
} else {
|
|
file_permissions = mode & (S_IRWXU | S_IRWXG | S_IRWXO);
|
|
}
|
|
}
|
|
} else {
|
|
error.SetErrorStringWithFormat("failed to send '%s' packet",
|
|
stream.GetData());
|
|
}
|
|
return error;
|
|
}
|
|
|
|
uint64_t GDBRemoteCommunicationClient::ReadFile(lldb::user_id_t fd,
|
|
uint64_t offset, void *dst,
|
|
uint64_t dst_len,
|
|
Status &error) {
|
|
lldb_private::StreamString stream;
|
|
stream.Printf("vFile:pread:%i,%" PRId64 ",%" PRId64, (int)fd, dst_len,
|
|
offset);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(stream.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.GetChar() != 'F')
|
|
return 0;
|
|
uint32_t retcode = response.GetHexMaxU32(false, UINT32_MAX);
|
|
if (retcode == UINT32_MAX)
|
|
return retcode;
|
|
const char next = (response.Peek() ? *response.Peek() : 0);
|
|
if (next == ',')
|
|
return 0;
|
|
if (next == ';') {
|
|
response.GetChar(); // skip the semicolon
|
|
std::string buffer;
|
|
if (response.GetEscapedBinaryData(buffer)) {
|
|
const uint64_t data_to_write =
|
|
std::min<uint64_t>(dst_len, buffer.size());
|
|
if (data_to_write > 0)
|
|
memcpy(dst, &buffer[0], data_to_write);
|
|
return data_to_write;
|
|
}
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
uint64_t GDBRemoteCommunicationClient::WriteFile(lldb::user_id_t fd,
|
|
uint64_t offset,
|
|
const void *src,
|
|
uint64_t src_len,
|
|
Status &error) {
|
|
lldb_private::StreamGDBRemote stream;
|
|
stream.Printf("vFile:pwrite:%i,%" PRId64 ",", (int)fd, offset);
|
|
stream.PutEscapedBytes(src, src_len);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(stream.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.GetChar() != 'F') {
|
|
error.SetErrorStringWithFormat("write file failed");
|
|
return 0;
|
|
}
|
|
uint64_t bytes_written = response.GetU64(UINT64_MAX);
|
|
if (bytes_written == UINT64_MAX) {
|
|
error.SetErrorToGenericError();
|
|
if (response.GetChar() == ',') {
|
|
int response_errno = response.GetS32(-1);
|
|
if (response_errno > 0)
|
|
error.SetError(response_errno, lldb::eErrorTypePOSIX);
|
|
}
|
|
return 0;
|
|
}
|
|
return bytes_written;
|
|
} else {
|
|
error.SetErrorString("failed to send vFile:pwrite packet");
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
Status GDBRemoteCommunicationClient::CreateSymlink(const FileSpec &src,
|
|
const FileSpec &dst) {
|
|
std::string src_path{src.GetPath(false)}, dst_path{dst.GetPath(false)};
|
|
Status error;
|
|
lldb_private::StreamGDBRemote stream;
|
|
stream.PutCString("vFile:symlink:");
|
|
// the unix symlink() command reverses its parameters where the dst if first,
|
|
// so we follow suit here
|
|
stream.PutStringAsRawHex8(dst_path);
|
|
stream.PutChar(',');
|
|
stream.PutStringAsRawHex8(src_path);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(stream.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.GetChar() == 'F') {
|
|
uint32_t result = response.GetU32(UINT32_MAX);
|
|
if (result != 0) {
|
|
error.SetErrorToGenericError();
|
|
if (response.GetChar() == ',') {
|
|
int response_errno = response.GetS32(-1);
|
|
if (response_errno > 0)
|
|
error.SetError(response_errno, lldb::eErrorTypePOSIX);
|
|
}
|
|
}
|
|
} else {
|
|
// Should have returned with 'F<result>[,<errno>]'
|
|
error.SetErrorStringWithFormat("symlink failed");
|
|
}
|
|
} else {
|
|
error.SetErrorString("failed to send vFile:symlink packet");
|
|
}
|
|
return error;
|
|
}
|
|
|
|
Status GDBRemoteCommunicationClient::Unlink(const FileSpec &file_spec) {
|
|
std::string path{file_spec.GetPath(false)};
|
|
Status error;
|
|
lldb_private::StreamGDBRemote stream;
|
|
stream.PutCString("vFile:unlink:");
|
|
// the unix symlink() command reverses its parameters where the dst if first,
|
|
// so we follow suit here
|
|
stream.PutStringAsRawHex8(path);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(stream.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.GetChar() == 'F') {
|
|
uint32_t result = response.GetU32(UINT32_MAX);
|
|
if (result != 0) {
|
|
error.SetErrorToGenericError();
|
|
if (response.GetChar() == ',') {
|
|
int response_errno = response.GetS32(-1);
|
|
if (response_errno > 0)
|
|
error.SetError(response_errno, lldb::eErrorTypePOSIX);
|
|
}
|
|
}
|
|
} else {
|
|
// Should have returned with 'F<result>[,<errno>]'
|
|
error.SetErrorStringWithFormat("unlink failed");
|
|
}
|
|
} else {
|
|
error.SetErrorString("failed to send vFile:unlink packet");
|
|
}
|
|
return error;
|
|
}
|
|
|
|
// Extension of host I/O packets to get whether a file exists.
|
|
bool GDBRemoteCommunicationClient::GetFileExists(
|
|
const lldb_private::FileSpec &file_spec) {
|
|
std::string path(file_spec.GetPath(false));
|
|
lldb_private::StreamString stream;
|
|
stream.PutCString("vFile:exists:");
|
|
stream.PutStringAsRawHex8(path);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(stream.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.GetChar() != 'F')
|
|
return false;
|
|
if (response.GetChar() != ',')
|
|
return false;
|
|
bool retcode = (response.GetChar() != '0');
|
|
return retcode;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::CalculateMD5(
|
|
const lldb_private::FileSpec &file_spec, uint64_t &high, uint64_t &low) {
|
|
std::string path(file_spec.GetPath(false));
|
|
lldb_private::StreamString stream;
|
|
stream.PutCString("vFile:MD5:");
|
|
stream.PutStringAsRawHex8(path);
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(stream.GetString(), response, false) ==
|
|
PacketResult::Success) {
|
|
if (response.GetChar() != 'F')
|
|
return false;
|
|
if (response.GetChar() != ',')
|
|
return false;
|
|
if (response.Peek() && *response.Peek() == 'x')
|
|
return false;
|
|
low = response.GetHexMaxU64(false, UINT64_MAX);
|
|
high = response.GetHexMaxU64(false, UINT64_MAX);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::AvoidGPackets(ProcessGDBRemote *process) {
|
|
// Some targets have issues with g/G packets and we need to avoid using them
|
|
if (m_avoid_g_packets == eLazyBoolCalculate) {
|
|
if (process) {
|
|
m_avoid_g_packets = eLazyBoolNo;
|
|
const ArchSpec &arch = process->GetTarget().GetArchitecture();
|
|
if (arch.IsValid() &&
|
|
arch.GetTriple().getVendor() == llvm::Triple::Apple &&
|
|
arch.GetTriple().getOS() == llvm::Triple::IOS &&
|
|
arch.GetTriple().getArch() == llvm::Triple::aarch64) {
|
|
m_avoid_g_packets = eLazyBoolYes;
|
|
uint32_t gdb_server_version = GetGDBServerProgramVersion();
|
|
if (gdb_server_version != 0) {
|
|
const char *gdb_server_name = GetGDBServerProgramName();
|
|
if (gdb_server_name && strcmp(gdb_server_name, "debugserver") == 0) {
|
|
if (gdb_server_version >= 310)
|
|
m_avoid_g_packets = eLazyBoolNo;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
return m_avoid_g_packets == eLazyBoolYes;
|
|
}
|
|
|
|
DataBufferSP GDBRemoteCommunicationClient::ReadRegister(lldb::tid_t tid,
|
|
uint32_t reg) {
|
|
StreamString payload;
|
|
payload.Printf("p%x", reg);
|
|
StringExtractorGDBRemote response;
|
|
if (SendThreadSpecificPacketAndWaitForResponse(
|
|
tid, std::move(payload), response, false) != PacketResult::Success ||
|
|
!response.IsNormalResponse())
|
|
return nullptr;
|
|
|
|
DataBufferSP buffer_sp(
|
|
new DataBufferHeap(response.GetStringRef().size() / 2, 0));
|
|
response.GetHexBytes(buffer_sp->GetData(), '\xcc');
|
|
return buffer_sp;
|
|
}
|
|
|
|
DataBufferSP GDBRemoteCommunicationClient::ReadAllRegisters(lldb::tid_t tid) {
|
|
StreamString payload;
|
|
payload.PutChar('g');
|
|
StringExtractorGDBRemote response;
|
|
if (SendThreadSpecificPacketAndWaitForResponse(
|
|
tid, std::move(payload), response, false) != PacketResult::Success ||
|
|
!response.IsNormalResponse())
|
|
return nullptr;
|
|
|
|
DataBufferSP buffer_sp(
|
|
new DataBufferHeap(response.GetStringRef().size() / 2, 0));
|
|
response.GetHexBytes(buffer_sp->GetData(), '\xcc');
|
|
return buffer_sp;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::WriteRegister(lldb::tid_t tid,
|
|
uint32_t reg_num,
|
|
llvm::ArrayRef<uint8_t> data) {
|
|
StreamString payload;
|
|
payload.Printf("P%x=", reg_num);
|
|
payload.PutBytesAsRawHex8(data.data(), data.size(),
|
|
endian::InlHostByteOrder(),
|
|
endian::InlHostByteOrder());
|
|
StringExtractorGDBRemote response;
|
|
return SendThreadSpecificPacketAndWaitForResponse(tid, std::move(payload),
|
|
response, false) ==
|
|
PacketResult::Success &&
|
|
response.IsOKResponse();
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::WriteAllRegisters(
|
|
lldb::tid_t tid, llvm::ArrayRef<uint8_t> data) {
|
|
StreamString payload;
|
|
payload.PutChar('G');
|
|
payload.PutBytesAsRawHex8(data.data(), data.size(),
|
|
endian::InlHostByteOrder(),
|
|
endian::InlHostByteOrder());
|
|
StringExtractorGDBRemote response;
|
|
return SendThreadSpecificPacketAndWaitForResponse(tid, std::move(payload),
|
|
response, false) ==
|
|
PacketResult::Success &&
|
|
response.IsOKResponse();
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::SaveRegisterState(lldb::tid_t tid,
|
|
uint32_t &save_id) {
|
|
save_id = 0; // Set to invalid save ID
|
|
if (m_supports_QSaveRegisterState == eLazyBoolNo)
|
|
return false;
|
|
|
|
m_supports_QSaveRegisterState = eLazyBoolYes;
|
|
StreamString payload;
|
|
payload.PutCString("QSaveRegisterState");
|
|
StringExtractorGDBRemote response;
|
|
if (SendThreadSpecificPacketAndWaitForResponse(
|
|
tid, std::move(payload), response, false) != PacketResult::Success)
|
|
return false;
|
|
|
|
if (response.IsUnsupportedResponse())
|
|
m_supports_QSaveRegisterState = eLazyBoolNo;
|
|
|
|
const uint32_t response_save_id = response.GetU32(0);
|
|
if (response_save_id == 0)
|
|
return false;
|
|
|
|
save_id = response_save_id;
|
|
return true;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::RestoreRegisterState(lldb::tid_t tid,
|
|
uint32_t save_id) {
|
|
// We use the "m_supports_QSaveRegisterState" variable here because the
|
|
// QSaveRegisterState and QRestoreRegisterState packets must both be
|
|
// supported in order to be useful
|
|
if (m_supports_QSaveRegisterState == eLazyBoolNo)
|
|
return false;
|
|
|
|
StreamString payload;
|
|
payload.Printf("QRestoreRegisterState:%u", save_id);
|
|
StringExtractorGDBRemote response;
|
|
if (SendThreadSpecificPacketAndWaitForResponse(
|
|
tid, std::move(payload), response, false) != PacketResult::Success)
|
|
return false;
|
|
|
|
if (response.IsOKResponse())
|
|
return true;
|
|
|
|
if (response.IsUnsupportedResponse())
|
|
m_supports_QSaveRegisterState = eLazyBoolNo;
|
|
return false;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::SyncThreadState(lldb::tid_t tid) {
|
|
if (!GetSyncThreadStateSupported())
|
|
return false;
|
|
|
|
StreamString packet;
|
|
StringExtractorGDBRemote response;
|
|
packet.Printf("QSyncThreadState:%4.4" PRIx64 ";", tid);
|
|
return SendPacketAndWaitForResponse(packet.GetString(), response, false) ==
|
|
GDBRemoteCommunication::PacketResult::Success &&
|
|
response.IsOKResponse();
|
|
}
|
|
|
|
lldb::user_id_t
|
|
GDBRemoteCommunicationClient::SendStartTracePacket(const TraceOptions &options,
|
|
Status &error) {
|
|
Log *log(ProcessGDBRemoteLog::GetLogIfAllCategoriesSet(GDBR_LOG_PROCESS));
|
|
lldb::user_id_t ret_uid = LLDB_INVALID_UID;
|
|
|
|
StreamGDBRemote escaped_packet;
|
|
escaped_packet.PutCString("jTraceStart:");
|
|
|
|
StructuredData::Dictionary json_packet;
|
|
json_packet.AddIntegerItem("type", options.getType());
|
|
json_packet.AddIntegerItem("buffersize", options.getTraceBufferSize());
|
|
json_packet.AddIntegerItem("metabuffersize", options.getMetaDataBufferSize());
|
|
|
|
if (options.getThreadID() != LLDB_INVALID_THREAD_ID)
|
|
json_packet.AddIntegerItem("threadid", options.getThreadID());
|
|
|
|
StructuredData::DictionarySP custom_params = options.getTraceParams();
|
|
if (custom_params)
|
|
json_packet.AddItem("params", custom_params);
|
|
|
|
StreamString json_string;
|
|
json_packet.Dump(json_string, false);
|
|
escaped_packet.PutEscapedBytes(json_string.GetData(), json_string.GetSize());
|
|
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(escaped_packet.GetString(), response,
|
|
true) ==
|
|
GDBRemoteCommunication::PacketResult::Success) {
|
|
if (!response.IsNormalResponse()) {
|
|
error = response.GetStatus();
|
|
LLDB_LOG(log, "Target does not support Tracing , error {0}", error);
|
|
} else {
|
|
ret_uid = response.GetHexMaxU64(false, LLDB_INVALID_UID);
|
|
}
|
|
} else {
|
|
LLDB_LOG(log, "failed to send packet");
|
|
error.SetErrorStringWithFormat("failed to send packet: '%s'",
|
|
escaped_packet.GetData());
|
|
}
|
|
return ret_uid;
|
|
}
|
|
|
|
Status
|
|
GDBRemoteCommunicationClient::SendStopTracePacket(lldb::user_id_t uid,
|
|
lldb::tid_t thread_id) {
|
|
Log *log(ProcessGDBRemoteLog::GetLogIfAllCategoriesSet(GDBR_LOG_PROCESS));
|
|
StringExtractorGDBRemote response;
|
|
Status error;
|
|
|
|
StructuredData::Dictionary json_packet;
|
|
StreamGDBRemote escaped_packet;
|
|
StreamString json_string;
|
|
escaped_packet.PutCString("jTraceStop:");
|
|
|
|
json_packet.AddIntegerItem("traceid", uid);
|
|
|
|
if (thread_id != LLDB_INVALID_THREAD_ID)
|
|
json_packet.AddIntegerItem("threadid", thread_id);
|
|
|
|
json_packet.Dump(json_string, false);
|
|
|
|
escaped_packet.PutEscapedBytes(json_string.GetData(), json_string.GetSize());
|
|
|
|
if (SendPacketAndWaitForResponse(escaped_packet.GetString(), response,
|
|
true) ==
|
|
GDBRemoteCommunication::PacketResult::Success) {
|
|
if (!response.IsOKResponse()) {
|
|
error = response.GetStatus();
|
|
LLDB_LOG(log, "stop tracing failed");
|
|
}
|
|
} else {
|
|
LLDB_LOG(log, "failed to send packet");
|
|
error.SetErrorStringWithFormat(
|
|
"failed to send packet: '%s' with error '%d'", escaped_packet.GetData(),
|
|
response.GetError());
|
|
}
|
|
return error;
|
|
}
|
|
|
|
Status GDBRemoteCommunicationClient::SendGetDataPacket(
|
|
lldb::user_id_t uid, lldb::tid_t thread_id,
|
|
llvm::MutableArrayRef<uint8_t> &buffer, size_t offset) {
|
|
|
|
StreamGDBRemote escaped_packet;
|
|
escaped_packet.PutCString("jTraceBufferRead:");
|
|
return SendGetTraceDataPacket(escaped_packet, uid, thread_id, buffer, offset);
|
|
}
|
|
|
|
Status GDBRemoteCommunicationClient::SendGetMetaDataPacket(
|
|
lldb::user_id_t uid, lldb::tid_t thread_id,
|
|
llvm::MutableArrayRef<uint8_t> &buffer, size_t offset) {
|
|
|
|
StreamGDBRemote escaped_packet;
|
|
escaped_packet.PutCString("jTraceMetaRead:");
|
|
return SendGetTraceDataPacket(escaped_packet, uid, thread_id, buffer, offset);
|
|
}
|
|
|
|
Status
|
|
GDBRemoteCommunicationClient::SendGetTraceConfigPacket(lldb::user_id_t uid,
|
|
TraceOptions &options) {
|
|
Log *log(ProcessGDBRemoteLog::GetLogIfAllCategoriesSet(GDBR_LOG_PROCESS));
|
|
StringExtractorGDBRemote response;
|
|
Status error;
|
|
|
|
StreamString json_string;
|
|
StreamGDBRemote escaped_packet;
|
|
escaped_packet.PutCString("jTraceConfigRead:");
|
|
|
|
StructuredData::Dictionary json_packet;
|
|
json_packet.AddIntegerItem("traceid", uid);
|
|
|
|
if (options.getThreadID() != LLDB_INVALID_THREAD_ID)
|
|
json_packet.AddIntegerItem("threadid", options.getThreadID());
|
|
|
|
json_packet.Dump(json_string, false);
|
|
escaped_packet.PutEscapedBytes(json_string.GetData(), json_string.GetSize());
|
|
|
|
if (SendPacketAndWaitForResponse(escaped_packet.GetString(), response,
|
|
true) ==
|
|
GDBRemoteCommunication::PacketResult::Success) {
|
|
if (response.IsNormalResponse()) {
|
|
uint64_t type = std::numeric_limits<uint64_t>::max();
|
|
uint64_t buffersize = std::numeric_limits<uint64_t>::max();
|
|
uint64_t metabuffersize = std::numeric_limits<uint64_t>::max();
|
|
|
|
auto json_object = StructuredData::ParseJSON(response.Peek());
|
|
|
|
if (!json_object ||
|
|
json_object->GetType() != lldb::eStructuredDataTypeDictionary) {
|
|
error.SetErrorString("Invalid Configuration obtained");
|
|
return error;
|
|
}
|
|
|
|
auto json_dict = json_object->GetAsDictionary();
|
|
|
|
json_dict->GetValueForKeyAsInteger<uint64_t>("metabuffersize",
|
|
metabuffersize);
|
|
options.setMetaDataBufferSize(metabuffersize);
|
|
|
|
json_dict->GetValueForKeyAsInteger<uint64_t>("buffersize", buffersize);
|
|
options.setTraceBufferSize(buffersize);
|
|
|
|
json_dict->GetValueForKeyAsInteger<uint64_t>("type", type);
|
|
options.setType(static_cast<lldb::TraceType>(type));
|
|
|
|
StructuredData::ObjectSP custom_params_sp =
|
|
json_dict->GetValueForKey("params");
|
|
if (custom_params_sp) {
|
|
if (custom_params_sp->GetType() !=
|
|
lldb::eStructuredDataTypeDictionary) {
|
|
error.SetErrorString("Invalid Configuration obtained");
|
|
return error;
|
|
} else
|
|
options.setTraceParams(
|
|
static_pointer_cast<StructuredData::Dictionary>(
|
|
custom_params_sp));
|
|
}
|
|
} else {
|
|
error = response.GetStatus();
|
|
}
|
|
} else {
|
|
LLDB_LOG(log, "failed to send packet");
|
|
error.SetErrorStringWithFormat("failed to send packet: '%s'",
|
|
escaped_packet.GetData());
|
|
}
|
|
return error;
|
|
}
|
|
|
|
Status GDBRemoteCommunicationClient::SendGetTraceDataPacket(
|
|
StreamGDBRemote &packet, lldb::user_id_t uid, lldb::tid_t thread_id,
|
|
llvm::MutableArrayRef<uint8_t> &buffer, size_t offset) {
|
|
Log *log(ProcessGDBRemoteLog::GetLogIfAllCategoriesSet(GDBR_LOG_PROCESS));
|
|
Status error;
|
|
|
|
StructuredData::Dictionary json_packet;
|
|
|
|
json_packet.AddIntegerItem("traceid", uid);
|
|
json_packet.AddIntegerItem("offset", offset);
|
|
json_packet.AddIntegerItem("buffersize", buffer.size());
|
|
|
|
if (thread_id != LLDB_INVALID_THREAD_ID)
|
|
json_packet.AddIntegerItem("threadid", thread_id);
|
|
|
|
StreamString json_string;
|
|
json_packet.Dump(json_string, false);
|
|
|
|
packet.PutEscapedBytes(json_string.GetData(), json_string.GetSize());
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet.GetString(), response, true) ==
|
|
GDBRemoteCommunication::PacketResult::Success) {
|
|
if (response.IsNormalResponse()) {
|
|
size_t filled_size = response.GetHexBytesAvail(buffer);
|
|
buffer = llvm::MutableArrayRef<uint8_t>(buffer.data(), filled_size);
|
|
} else {
|
|
error = response.GetStatus();
|
|
buffer = buffer.slice(buffer.size());
|
|
}
|
|
} else {
|
|
LLDB_LOG(log, "failed to send packet");
|
|
error.SetErrorStringWithFormat("failed to send packet: '%s'",
|
|
packet.GetData());
|
|
buffer = buffer.slice(buffer.size());
|
|
}
|
|
return error;
|
|
}
|
|
|
|
bool GDBRemoteCommunicationClient::GetModuleInfo(
|
|
const FileSpec &module_file_spec, const lldb_private::ArchSpec &arch_spec,
|
|
ModuleSpec &module_spec) {
|
|
if (!m_supports_qModuleInfo)
|
|
return false;
|
|
|
|
std::string module_path = module_file_spec.GetPath(false);
|
|
if (module_path.empty())
|
|
return false;
|
|
|
|
StreamString packet;
|
|
packet.PutCString("qModuleInfo:");
|
|
packet.PutStringAsRawHex8(module_path);
|
|
packet.PutCString(";");
|
|
const auto &triple = arch_spec.GetTriple().getTriple();
|
|
packet.PutStringAsRawHex8(triple);
|
|
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(packet.GetString(), response, false) !=
|
|
PacketResult::Success)
|
|
return false;
|
|
|
|
if (response.IsErrorResponse())
|
|
return false;
|
|
|
|
if (response.IsUnsupportedResponse()) {
|
|
m_supports_qModuleInfo = false;
|
|
return false;
|
|
}
|
|
|
|
llvm::StringRef name;
|
|
llvm::StringRef value;
|
|
|
|
module_spec.Clear();
|
|
module_spec.GetFileSpec() = module_file_spec;
|
|
|
|
while (response.GetNameColonValue(name, value)) {
|
|
if (name == "uuid" || name == "md5") {
|
|
StringExtractor extractor(value);
|
|
std::string uuid;
|
|
extractor.GetHexByteString(uuid);
|
|
module_spec.GetUUID().SetFromStringRef(uuid, uuid.size() / 2);
|
|
} else if (name == "triple") {
|
|
StringExtractor extractor(value);
|
|
std::string triple;
|
|
extractor.GetHexByteString(triple);
|
|
module_spec.GetArchitecture().SetTriple(triple.c_str());
|
|
} else if (name == "file_offset") {
|
|
uint64_t ival = 0;
|
|
if (!value.getAsInteger(16, ival))
|
|
module_spec.SetObjectOffset(ival);
|
|
} else if (name == "file_size") {
|
|
uint64_t ival = 0;
|
|
if (!value.getAsInteger(16, ival))
|
|
module_spec.SetObjectSize(ival);
|
|
} else if (name == "file_path") {
|
|
StringExtractor extractor(value);
|
|
std::string path;
|
|
extractor.GetHexByteString(path);
|
|
module_spec.GetFileSpec() = FileSpec(path, arch_spec.GetTriple());
|
|
}
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
static llvm::Optional<ModuleSpec>
|
|
ParseModuleSpec(StructuredData::Dictionary *dict) {
|
|
ModuleSpec result;
|
|
if (!dict)
|
|
return llvm::None;
|
|
|
|
llvm::StringRef string;
|
|
uint64_t integer;
|
|
|
|
if (!dict->GetValueForKeyAsString("uuid", string))
|
|
return llvm::None;
|
|
if (result.GetUUID().SetFromStringRef(string, string.size() / 2) !=
|
|
string.size())
|
|
return llvm::None;
|
|
|
|
if (!dict->GetValueForKeyAsInteger("file_offset", integer))
|
|
return llvm::None;
|
|
result.SetObjectOffset(integer);
|
|
|
|
if (!dict->GetValueForKeyAsInteger("file_size", integer))
|
|
return llvm::None;
|
|
result.SetObjectSize(integer);
|
|
|
|
if (!dict->GetValueForKeyAsString("triple", string))
|
|
return llvm::None;
|
|
result.GetArchitecture().SetTriple(string);
|
|
|
|
if (!dict->GetValueForKeyAsString("file_path", string))
|
|
return llvm::None;
|
|
result.GetFileSpec() = FileSpec(string, result.GetArchitecture().GetTriple());
|
|
|
|
return result;
|
|
}
|
|
|
|
llvm::Optional<std::vector<ModuleSpec>>
|
|
GDBRemoteCommunicationClient::GetModulesInfo(
|
|
llvm::ArrayRef<FileSpec> module_file_specs, const llvm::Triple &triple) {
|
|
if (!m_supports_jModulesInfo)
|
|
return llvm::None;
|
|
|
|
JSONArray::SP module_array_sp = std::make_shared<JSONArray>();
|
|
for (const FileSpec &module_file_spec : module_file_specs) {
|
|
JSONObject::SP module_sp = std::make_shared<JSONObject>();
|
|
module_array_sp->AppendObject(module_sp);
|
|
module_sp->SetObject(
|
|
"file", std::make_shared<JSONString>(module_file_spec.GetPath(false)));
|
|
module_sp->SetObject("triple",
|
|
std::make_shared<JSONString>(triple.getTriple()));
|
|
}
|
|
StreamString unescaped_payload;
|
|
unescaped_payload.PutCString("jModulesInfo:");
|
|
module_array_sp->Write(unescaped_payload);
|
|
StreamGDBRemote payload;
|
|
payload.PutEscapedBytes(unescaped_payload.GetString().data(),
|
|
unescaped_payload.GetSize());
|
|
|
|
// Increase the timeout for jModulesInfo since this packet can take longer.
|
|
ScopedTimeout timeout(*this, std::chrono::seconds(10));
|
|
|
|
StringExtractorGDBRemote response;
|
|
if (SendPacketAndWaitForResponse(payload.GetString(), response, false) !=
|
|
PacketResult::Success ||
|
|
response.IsErrorResponse())
|
|
return llvm::None;
|
|
|
|
if (response.IsUnsupportedResponse()) {
|
|
m_supports_jModulesInfo = false;
|
|
return llvm::None;
|
|
}
|
|
|
|
StructuredData::ObjectSP response_object_sp =
|
|
StructuredData::ParseJSON(response.GetStringRef());
|
|
if (!response_object_sp)
|
|
return llvm::None;
|
|
|
|
StructuredData::Array *response_array = response_object_sp->GetAsArray();
|
|
if (!response_array)
|
|
return llvm::None;
|
|
|
|
std::vector<ModuleSpec> result;
|
|
for (size_t i = 0; i < response_array->GetSize(); ++i) {
|
|
if (llvm::Optional<ModuleSpec> module_spec = ParseModuleSpec(
|
|
response_array->GetItemAtIndex(i)->GetAsDictionary()))
|
|
result.push_back(*module_spec);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
// query the target remote for extended information using the qXfer packet
|
|
//
|
|
// example: object='features', annex='target.xml', out=<xml output> return:
|
|
// 'true' on success
|
|
// 'false' on failure (err set)
|
|
bool GDBRemoteCommunicationClient::ReadExtFeature(
|
|
const lldb_private::ConstString object,
|
|
const lldb_private::ConstString annex, std::string &out,
|
|
lldb_private::Status &err) {
|
|
|
|
std::stringstream output;
|
|
StringExtractorGDBRemote chunk;
|
|
|
|
uint64_t size = GetRemoteMaxPacketSize();
|
|
if (size == 0)
|
|
size = 0x1000;
|
|
size = size - 1; // Leave space for the 'm' or 'l' character in the response
|
|
int offset = 0;
|
|
bool active = true;
|
|
|
|
// loop until all data has been read
|
|
while (active) {
|
|
|
|
// send query extended feature packet
|
|
std::stringstream packet;
|
|
packet << "qXfer:" << object.AsCString("")
|
|
<< ":read:" << annex.AsCString("") << ":" << std::hex << offset
|
|
<< "," << std::hex << size;
|
|
|
|
GDBRemoteCommunication::PacketResult res =
|
|
SendPacketAndWaitForResponse(packet.str(), chunk, false);
|
|
|
|
if (res != GDBRemoteCommunication::PacketResult::Success) {
|
|
err.SetErrorString("Error sending $qXfer packet");
|
|
return false;
|
|
}
|
|
|
|
const std::string &str = chunk.GetStringRef();
|
|
if (str.length() == 0) {
|
|
// should have some data in chunk
|
|
err.SetErrorString("Empty response from $qXfer packet");
|
|
return false;
|
|
}
|
|
|
|
// check packet code
|
|
switch (str[0]) {
|
|
// last chunk
|
|
case ('l'):
|
|
active = false;
|
|
LLVM_FALLTHROUGH;
|
|
|
|
// more chunks
|
|
case ('m'):
|
|
if (str.length() > 1)
|
|
output << &str[1];
|
|
offset += size;
|
|
break;
|
|
|
|
// unknown chunk
|
|
default:
|
|
err.SetErrorString("Invalid continuation code from $qXfer packet");
|
|
return false;
|
|
}
|
|
}
|
|
|
|
out = output.str();
|
|
err.Success();
|
|
return true;
|
|
}
|
|
|
|
// Notify the target that gdb is prepared to serve symbol lookup requests.
|
|
// packet: "qSymbol::"
|
|
// reply:
|
|
// OK The target does not need to look up any (more) symbols.
|
|
// qSymbol:<sym_name> The target requests the value of symbol sym_name (hex
|
|
// encoded).
|
|
// LLDB may provide the value by sending another qSymbol
|
|
// packet
|
|
// in the form of"qSymbol:<sym_value>:<sym_name>".
|
|
//
|
|
// Three examples:
|
|
//
|
|
// lldb sends: qSymbol::
|
|
// lldb receives: OK
|
|
// Remote gdb stub does not need to know the addresses of any symbols, lldb
|
|
// does not
|
|
// need to ask again in this session.
|
|
//
|
|
// lldb sends: qSymbol::
|
|
// lldb receives: qSymbol:64697370617463685f71756575655f6f666673657473
|
|
// lldb sends: qSymbol::64697370617463685f71756575655f6f666673657473
|
|
// lldb receives: OK
|
|
// Remote gdb stub asks for address of 'dispatch_queue_offsets'. lldb does
|
|
// not know
|
|
// the address at this time. lldb needs to send qSymbol:: again when it has
|
|
// more
|
|
// solibs loaded.
|
|
//
|
|
// lldb sends: qSymbol::
|
|
// lldb receives: qSymbol:64697370617463685f71756575655f6f666673657473
|
|
// lldb sends: qSymbol:2bc97554:64697370617463685f71756575655f6f666673657473
|
|
// lldb receives: OK
|
|
// Remote gdb stub asks for address of 'dispatch_queue_offsets'. lldb says
|
|
// that it
|
|
// is at address 0x2bc97554. Remote gdb stub sends 'OK' indicating that it
|
|
// does not
|
|
// need any more symbols. lldb does not need to ask again in this session.
|
|
|
|
void GDBRemoteCommunicationClient::ServeSymbolLookups(
|
|
lldb_private::Process *process) {
|
|
// Set to true once we've resolved a symbol to an address for the remote
|
|
// stub. If we get an 'OK' response after this, the remote stub doesn't need
|
|
// any more symbols and we can stop asking.
|
|
bool symbol_response_provided = false;
|
|
|
|
// Is this the initial qSymbol:: packet?
|
|
bool first_qsymbol_query = true;
|
|
|
|
if (m_supports_qSymbol && !m_qSymbol_requests_done) {
|
|
Lock lock(*this, false);
|
|
if (lock) {
|
|
StreamString packet;
|
|
packet.PutCString("qSymbol::");
|
|
StringExtractorGDBRemote response;
|
|
while (SendPacketAndWaitForResponseNoLock(packet.GetString(), response) ==
|
|
PacketResult::Success) {
|
|
if (response.IsOKResponse()) {
|
|
if (symbol_response_provided || first_qsymbol_query) {
|
|
m_qSymbol_requests_done = true;
|
|
}
|
|
|
|
// We are done serving symbols requests
|
|
return;
|
|
}
|
|
first_qsymbol_query = false;
|
|
|
|
if (response.IsUnsupportedResponse()) {
|
|
// qSymbol is not supported by the current GDB server we are
|
|
// connected to
|
|
m_supports_qSymbol = false;
|
|
return;
|
|
} else {
|
|
llvm::StringRef response_str(response.GetStringRef());
|
|
if (response_str.startswith("qSymbol:")) {
|
|
response.SetFilePos(strlen("qSymbol:"));
|
|
std::string symbol_name;
|
|
if (response.GetHexByteString(symbol_name)) {
|
|
if (symbol_name.empty())
|
|
return;
|
|
|
|
addr_t symbol_load_addr = LLDB_INVALID_ADDRESS;
|
|
lldb_private::SymbolContextList sc_list;
|
|
if (process->GetTarget().GetImages().FindSymbolsWithNameAndType(
|
|
ConstString(symbol_name), eSymbolTypeAny, sc_list)) {
|
|
const size_t num_scs = sc_list.GetSize();
|
|
for (size_t sc_idx = 0;
|
|
sc_idx < num_scs &&
|
|
symbol_load_addr == LLDB_INVALID_ADDRESS;
|
|
++sc_idx) {
|
|
SymbolContext sc;
|
|
if (sc_list.GetContextAtIndex(sc_idx, sc)) {
|
|
if (sc.symbol) {
|
|
switch (sc.symbol->GetType()) {
|
|
case eSymbolTypeInvalid:
|
|
case eSymbolTypeAbsolute:
|
|
case eSymbolTypeUndefined:
|
|
case eSymbolTypeSourceFile:
|
|
case eSymbolTypeHeaderFile:
|
|
case eSymbolTypeObjectFile:
|
|
case eSymbolTypeCommonBlock:
|
|
case eSymbolTypeBlock:
|
|
case eSymbolTypeLocal:
|
|
case eSymbolTypeParam:
|
|
case eSymbolTypeVariable:
|
|
case eSymbolTypeVariableType:
|
|
case eSymbolTypeLineEntry:
|
|
case eSymbolTypeLineHeader:
|
|
case eSymbolTypeScopeBegin:
|
|
case eSymbolTypeScopeEnd:
|
|
case eSymbolTypeAdditional:
|
|
case eSymbolTypeCompiler:
|
|
case eSymbolTypeInstrumentation:
|
|
case eSymbolTypeTrampoline:
|
|
break;
|
|
|
|
case eSymbolTypeCode:
|
|
case eSymbolTypeResolver:
|
|
case eSymbolTypeData:
|
|
case eSymbolTypeRuntime:
|
|
case eSymbolTypeException:
|
|
case eSymbolTypeObjCClass:
|
|
case eSymbolTypeObjCMetaClass:
|
|
case eSymbolTypeObjCIVar:
|
|
case eSymbolTypeReExported:
|
|
symbol_load_addr =
|
|
sc.symbol->GetLoadAddress(&process->GetTarget());
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// This is the normal path where our symbol lookup was successful
|
|
// and we want to send a packet with the new symbol value and see
|
|
// if another lookup needs to be done.
|
|
|
|
// Change "packet" to contain the requested symbol value and name
|
|
packet.Clear();
|
|
packet.PutCString("qSymbol:");
|
|
if (symbol_load_addr != LLDB_INVALID_ADDRESS) {
|
|
packet.Printf("%" PRIx64, symbol_load_addr);
|
|
symbol_response_provided = true;
|
|
} else {
|
|
symbol_response_provided = false;
|
|
}
|
|
packet.PutCString(":");
|
|
packet.PutBytesAsRawHex8(symbol_name.data(), symbol_name.size());
|
|
continue; // go back to the while loop and send "packet" and wait
|
|
// for another response
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// If we make it here, the symbol request packet response wasn't valid or
|
|
// our symbol lookup failed so we must abort
|
|
return;
|
|
|
|
} else if (Log *log = ProcessGDBRemoteLog::GetLogIfAnyCategoryIsSet(
|
|
GDBR_LOG_PROCESS | GDBR_LOG_PACKETS)) {
|
|
LLDB_LOGF(log,
|
|
"GDBRemoteCommunicationClient::%s: Didn't get sequence mutex.",
|
|
__FUNCTION__);
|
|
}
|
|
}
|
|
}
|
|
|
|
StructuredData::Array *
|
|
GDBRemoteCommunicationClient::GetSupportedStructuredDataPlugins() {
|
|
if (!m_supported_async_json_packets_is_valid) {
|
|
// Query the server for the array of supported asynchronous JSON packets.
|
|
m_supported_async_json_packets_is_valid = true;
|
|
|
|
Log *log(ProcessGDBRemoteLog::GetLogIfAllCategoriesSet(GDBR_LOG_PROCESS));
|
|
|
|
// Poll it now.
|
|
StringExtractorGDBRemote response;
|
|
const bool send_async = false;
|
|
if (SendPacketAndWaitForResponse("qStructuredDataPlugins", response,
|
|
send_async) == PacketResult::Success) {
|
|
m_supported_async_json_packets_sp =
|
|
StructuredData::ParseJSON(response.GetStringRef());
|
|
if (m_supported_async_json_packets_sp &&
|
|
!m_supported_async_json_packets_sp->GetAsArray()) {
|
|
// We were returned something other than a JSON array. This is
|
|
// invalid. Clear it out.
|
|
LLDB_LOGF(log,
|
|
"GDBRemoteCommunicationClient::%s(): "
|
|
"QSupportedAsyncJSONPackets returned invalid "
|
|
"result: %s",
|
|
__FUNCTION__, response.GetStringRef().data());
|
|
m_supported_async_json_packets_sp.reset();
|
|
}
|
|
} else {
|
|
LLDB_LOGF(log,
|
|
"GDBRemoteCommunicationClient::%s(): "
|
|
"QSupportedAsyncJSONPackets unsupported",
|
|
__FUNCTION__);
|
|
}
|
|
|
|
if (log && m_supported_async_json_packets_sp) {
|
|
StreamString stream;
|
|
m_supported_async_json_packets_sp->Dump(stream);
|
|
LLDB_LOGF(log,
|
|
"GDBRemoteCommunicationClient::%s(): supported async "
|
|
"JSON packets: %s",
|
|
__FUNCTION__, stream.GetData());
|
|
}
|
|
}
|
|
|
|
return m_supported_async_json_packets_sp
|
|
? m_supported_async_json_packets_sp->GetAsArray()
|
|
: nullptr;
|
|
}
|
|
|
|
Status GDBRemoteCommunicationClient::SendSignalsToIgnore(
|
|
llvm::ArrayRef<int32_t> signals) {
|
|
// Format packet:
|
|
// QPassSignals:<hex_sig1>;<hex_sig2>...;<hex_sigN>
|
|
auto range = llvm::make_range(signals.begin(), signals.end());
|
|
std::string packet = formatv("QPassSignals:{0:$[;]@(x-2)}", range).str();
|
|
|
|
StringExtractorGDBRemote response;
|
|
auto send_status = SendPacketAndWaitForResponse(packet, response, false);
|
|
|
|
if (send_status != GDBRemoteCommunication::PacketResult::Success)
|
|
return Status("Sending QPassSignals packet failed");
|
|
|
|
if (response.IsOKResponse()) {
|
|
return Status();
|
|
} else {
|
|
return Status("Unknown error happened during sending QPassSignals packet.");
|
|
}
|
|
}
|
|
|
|
Status GDBRemoteCommunicationClient::ConfigureRemoteStructuredData(
|
|
ConstString type_name, const StructuredData::ObjectSP &config_sp) {
|
|
Status error;
|
|
|
|
if (type_name.GetLength() == 0) {
|
|
error.SetErrorString("invalid type_name argument");
|
|
return error;
|
|
}
|
|
|
|
// Build command: Configure{type_name}: serialized config data.
|
|
StreamGDBRemote stream;
|
|
stream.PutCString("QConfigure");
|
|
stream.PutCString(type_name.AsCString());
|
|
stream.PutChar(':');
|
|
if (config_sp) {
|
|
// Gather the plain-text version of the configuration data.
|
|
StreamString unescaped_stream;
|
|
config_sp->Dump(unescaped_stream);
|
|
unescaped_stream.Flush();
|
|
|
|
// Add it to the stream in escaped fashion.
|
|
stream.PutEscapedBytes(unescaped_stream.GetString().data(),
|
|
unescaped_stream.GetSize());
|
|
}
|
|
stream.Flush();
|
|
|
|
// Send the packet.
|
|
const bool send_async = false;
|
|
StringExtractorGDBRemote response;
|
|
auto result =
|
|
SendPacketAndWaitForResponse(stream.GetString(), response, send_async);
|
|
if (result == PacketResult::Success) {
|
|
// We failed if the config result comes back other than OK.
|
|
if (strcmp(response.GetStringRef().data(), "OK") == 0) {
|
|
// Okay!
|
|
error.Clear();
|
|
} else {
|
|
error.SetErrorStringWithFormat("configuring StructuredData feature "
|
|
"%s failed with error %s",
|
|
type_name.AsCString(),
|
|
response.GetStringRef().data());
|
|
}
|
|
} else {
|
|
// Can we get more data here on the failure?
|
|
error.SetErrorStringWithFormat("configuring StructuredData feature %s "
|
|
"failed when sending packet: "
|
|
"PacketResult=%d",
|
|
type_name.AsCString(), (int)result);
|
|
}
|
|
return error;
|
|
}
|
|
|
|
void GDBRemoteCommunicationClient::OnRunPacketSent(bool first) {
|
|
GDBRemoteClientBase::OnRunPacketSent(first);
|
|
m_curr_tid = LLDB_INVALID_THREAD_ID;
|
|
}
|