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//===-- ProcessEventDataTest.cpp ------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "Plugins/Platform/MacOSX/PlatformMacOSX.h"
#include "Plugins/Platform/MacOSX/PlatformRemoteMacOSX.h"
#include "TestingSupport/TestUtilities.h"
#include "lldb/Core/Debugger.h"
#include "lldb/Host/FileSystem.h"
#include "lldb/Host/HostInfo.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/StopInfo.h"
#include "lldb/Target/Thread.h"
#include "lldb/Utility/ArchSpec.h"
#include "lldb/Utility/Event.h"
#include "gtest/gtest.h"
using namespace lldb_private;
using namespace lldb_private::repro;
using namespace lldb;
namespace {
class ProcessEventDataTest : public ::testing::Test {
public:
void SetUp() override {
FileSystem::Initialize();
HostInfo::Initialize();
PlatformMacOSX::Initialize();
std::call_once(TestUtilities::g_debugger_initialize_flag,
[]() { Debugger::Initialize(nullptr); });
}
void TearDown() override {
PlatformMacOSX::Terminate();
HostInfo::Terminate();
FileSystem::Terminate();
}
};
class DummyProcess : public Process {
public:
DummyProcess(lldb::TargetSP target_sp, lldb::ListenerSP listener_sp)
: Process(target_sp, listener_sp) {}
bool CanDebug(lldb::TargetSP target, bool plugin_specified_by_name) override {
return true;
}
Status DoDestroy() override { return {}; }
void RefreshStateAfterStop() override {}
size_t DoReadMemory(lldb::addr_t vm_addr, void *buf, size_t size,
Status &error) override {
return 0;
}
bool DoUpdateThreadList(ThreadList &old_thread_list,
ThreadList &new_thread_list) override {
return false;
}
llvm::StringRef GetPluginName() override { return "Dummy"; }
ProcessModID &GetModIDNonConstRef() { return m_mod_id; }
};
class DummyThread : public Thread {
public:
using Thread::Thread;
~DummyThread() override { DestroyThread(); }
void RefreshStateAfterStop() override {}
lldb::RegisterContextSP GetRegisterContext() override { return nullptr; }
lldb::RegisterContextSP
CreateRegisterContextForFrame(StackFrame *frame) override {
return nullptr;
}
bool CalculateStopInfo() override { return false; }
};
class DummyStopInfo : public StopInfo {
public:
DummyStopInfo(Thread &thread, uint64_t value) : StopInfo(thread, value) {}
bool ShouldStop(Event *event_ptr) override { return m_should_stop; }
StopReason GetStopReason() const override { return m_stop_reason; }
bool m_should_stop = true;
StopReason m_stop_reason = eStopReasonBreakpoint;
};
class DummyProcessEventData : public Process::ProcessEventData {
public:
DummyProcessEventData(ProcessSP &process_sp, StateType state)
: ProcessEventData(process_sp, state) {}
bool ShouldStop(Event *event_ptr, bool &found_valid_stopinfo) override {
m_should_stop_hit_count++;
return false;
}
int m_should_stop_hit_count = 0;
};
} // namespace
typedef std::shared_ptr<Process::ProcessEventData> ProcessEventDataSP;
typedef std::shared_ptr<Event> EventSP;
TargetSP CreateTarget(DebuggerSP &debugger_sp, ArchSpec &arch) {
PlatformSP platform_sp;
TargetSP target_sp;
debugger_sp->GetTargetList().CreateTarget(
*debugger_sp, "", arch, eLoadDependentsNo, platform_sp, target_sp);
return target_sp;
}
ThreadSP CreateThread(ProcessSP &process_sp, bool should_stop,
bool has_valid_stopinfo) {
ThreadSP thread_sp = std::make_shared<DummyThread>(*process_sp.get(), 0);
if (thread_sp == nullptr) {
return nullptr;
}
if (has_valid_stopinfo) {
StopInfoSP stopinfo_sp =
std::make_shared<DummyStopInfo>(*thread_sp.get(), 0);
static_cast<DummyStopInfo *>(stopinfo_sp.get())->m_should_stop =
should_stop;
if (stopinfo_sp == nullptr) {
return nullptr;
}
thread_sp->SetStopInfo(stopinfo_sp);
}
process_sp->GetThreadList().AddThread(thread_sp);
return thread_sp;
}
TEST_F(ProcessEventDataTest, DoOnRemoval) {
ArchSpec arch("x86_64-apple-macosx-");
Platform::SetHostPlatform(PlatformRemoteMacOSX::CreateInstance(true, &arch));
DebuggerSP debugger_sp = Debugger::CreateInstance();
ASSERT_TRUE(debugger_sp);
TargetSP target_sp = CreateTarget(debugger_sp, arch);
ASSERT_TRUE(target_sp);
ListenerSP listener_sp(Listener::MakeListener("dummy"));
ProcessSP process_sp = std::make_shared<DummyProcess>(target_sp, listener_sp);
ASSERT_TRUE(process_sp);
/*
Should hit ShouldStop if state is eStateStopped
*/
ProcessEventDataSP event_data_sp =
std::make_shared<DummyProcessEventData>(process_sp, eStateStopped);
EventSP event_sp = std::make_shared<Event>(0, event_data_sp);
event_data_sp->SetUpdateStateOnRemoval(event_sp.get());
event_data_sp->DoOnRemoval(event_sp.get());
bool result = static_cast<DummyProcessEventData *>(event_data_sp.get())
->m_should_stop_hit_count == 1;
ASSERT_TRUE(result);
/*
Should not hit ShouldStop if state is not eStateStopped
*/
event_data_sp =
std::make_shared<DummyProcessEventData>(process_sp, eStateStepping);
event_sp = std::make_shared<Event>(0, event_data_sp);
event_data_sp->SetUpdateStateOnRemoval(event_sp.get());
event_data_sp->DoOnRemoval(event_sp.get());
result = static_cast<DummyProcessEventData *>(event_data_sp.get())
->m_should_stop_hit_count == 0;
ASSERT_TRUE(result);
}
TEST_F(ProcessEventDataTest, ShouldStop) {
ArchSpec arch("x86_64-apple-macosx-");
Platform::SetHostPlatform(PlatformRemoteMacOSX::CreateInstance(true, &arch));
DebuggerSP debugger_sp = Debugger::CreateInstance();
ASSERT_TRUE(debugger_sp);
TargetSP target_sp = CreateTarget(debugger_sp, arch);
ASSERT_TRUE(target_sp);
ListenerSP listener_sp(Listener::MakeListener("dummy"));
ProcessSP process_sp = std::make_shared<DummyProcess>(target_sp, listener_sp);
ASSERT_TRUE(process_sp);
// wants to stop and has valid StopInfo
ThreadSP thread_sp = CreateThread(process_sp, true, true);
ProcessEventDataSP event_data_sp =
std::make_shared<Process::ProcessEventData>(process_sp, eStateStopped);
EventSP event_sp = std::make_shared<Event>(0, event_data_sp);
/*
Should stop if thread has valid StopInfo and not suspended
*/
bool found_valid_stopinfo = false;
bool should_stop =
event_data_sp->ShouldStop(event_sp.get(), found_valid_stopinfo);
ASSERT_TRUE(should_stop == true && found_valid_stopinfo == true);
/*
Should not stop if thread has valid StopInfo but was suspended
*/
found_valid_stopinfo = false;
thread_sp->SetResumeState(eStateSuspended);
should_stop = event_data_sp->ShouldStop(event_sp.get(), found_valid_stopinfo);
ASSERT_TRUE(should_stop == false && found_valid_stopinfo == false);
/*
Should not stop, thread-reason of stop does not want to stop in its
callback and suspended thread who wants to (from previous stop)
must be ignored.
*/
event_data_sp =
std::make_shared<Process::ProcessEventData>(process_sp, eStateStopped);
event_sp = std::make_shared<Event>(0, event_data_sp);
process_sp->GetThreadList().Clear();
for (int i = 0; i < 6; i++) {
if (i == 2) {
// Does not want to stop but has valid StopInfo
thread_sp = CreateThread(process_sp, false, true);
} else if (i == 5) {
// Wants to stop and has valid StopInfo
thread_sp = CreateThread(process_sp, true, true);
thread_sp->SetResumeState(eStateSuspended);
} else {
// Thread has no StopInfo i.e is not the reason of stop
thread_sp = CreateThread(process_sp, false, false);
}
}
ASSERT_TRUE(process_sp->GetThreadList().GetSize() == 6);
found_valid_stopinfo = false;
should_stop = event_data_sp->ShouldStop(event_sp.get(), found_valid_stopinfo);
ASSERT_TRUE(should_stop == false && found_valid_stopinfo == true);
}
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