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f343968f5d
It's always hard to remember when to include this file, and when you do include it it's hard to remember what preprocessor check it needs to be behind, and then you further have to remember whether it's windows.h or win32.h which you need to include. This patch changes the name to PosixApi.h, which is more appropriately named, and makes it independent of any preprocessor setting. There's still the issue of people not knowing when to include this, because there's not a well-defined set of things it exposes other than "whatever is missing on Windows", but at least this should make it less painful to fix when problems arise. This patch depends on LLVM revision r278170. llvm-svn: 278177
355 lines
10 KiB
C++
355 lines
10 KiB
C++
//===-- ThreadPlan.cpp ------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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// C Includes
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// C++ Includes
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// Other libraries and framework includes
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// Project includes
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#include "lldb/Target/ThreadPlan.h"
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#include "lldb/Core/Debugger.h"
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#include "lldb/Core/Log.h"
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#include "lldb/Core/State.h"
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#include "lldb/Target/RegisterContext.h"
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#include "lldb/Target/Thread.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Utility/ConvertEnum.h"
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using namespace lldb;
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using namespace lldb_private;
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//----------------------------------------------------------------------
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// ThreadPlan constructor
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//----------------------------------------------------------------------
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ThreadPlan::ThreadPlan(ThreadPlanKind kind, const char *name, Thread &thread, Vote stop_vote, Vote run_vote)
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: m_thread(thread),
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m_stop_vote(stop_vote),
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m_run_vote(run_vote),
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m_kind(kind),
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m_name(name),
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m_plan_complete_mutex(),
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m_cached_plan_explains_stop(eLazyBoolCalculate),
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m_plan_complete(false),
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m_plan_private(false),
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m_okay_to_discard(true),
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m_is_master_plan(false),
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m_plan_succeeded(true)
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{
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SetID(GetNextID());
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}
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//----------------------------------------------------------------------
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// Destructor
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//----------------------------------------------------------------------
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ThreadPlan::~ThreadPlan() = default;
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bool
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ThreadPlan::PlanExplainsStop (Event *event_ptr)
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{
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if (m_cached_plan_explains_stop == eLazyBoolCalculate)
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{
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bool actual_value = DoPlanExplainsStop(event_ptr);
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m_cached_plan_explains_stop = actual_value ? eLazyBoolYes : eLazyBoolNo;
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return actual_value;
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}
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else
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{
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return m_cached_plan_explains_stop == eLazyBoolYes;
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}
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}
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bool
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ThreadPlan::IsPlanComplete ()
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{
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std::lock_guard<std::recursive_mutex> guard(m_plan_complete_mutex);
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return m_plan_complete;
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}
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void
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ThreadPlan::SetPlanComplete (bool success)
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{
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std::lock_guard<std::recursive_mutex> guard(m_plan_complete_mutex);
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m_plan_complete = true;
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m_plan_succeeded = success;
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}
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bool
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ThreadPlan::MischiefManaged ()
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{
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std::lock_guard<std::recursive_mutex> guard(m_plan_complete_mutex);
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// Mark the plan is complete, but don't override the success flag.
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m_plan_complete = true;
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return true;
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}
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Vote
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ThreadPlan::ShouldReportStop (Event *event_ptr)
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{
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP));
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if (m_stop_vote == eVoteNoOpinion)
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{
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ThreadPlan *prev_plan = GetPreviousPlan ();
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if (prev_plan)
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{
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Vote prev_vote = prev_plan->ShouldReportStop (event_ptr);
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if (log)
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log->Printf ("ThreadPlan::ShouldReportStop() returning previous thread plan vote: %s",
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GetVoteAsCString (prev_vote));
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return prev_vote;
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}
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}
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if (log)
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log->Printf ("ThreadPlan::ShouldReportStop() returning vote: %s", GetVoteAsCString (m_stop_vote));
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return m_stop_vote;
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}
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Vote
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ThreadPlan::ShouldReportRun (Event *event_ptr)
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{
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if (m_run_vote == eVoteNoOpinion)
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{
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ThreadPlan *prev_plan = GetPreviousPlan ();
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if (prev_plan)
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return prev_plan->ShouldReportRun (event_ptr);
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}
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return m_run_vote;
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}
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bool
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ThreadPlan::StopOthers ()
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{
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ThreadPlan *prev_plan;
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prev_plan = GetPreviousPlan ();
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return (prev_plan == nullptr) ? false : prev_plan->StopOthers();
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}
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void
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ThreadPlan::SetStopOthers (bool new_value)
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{
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// SetStopOthers doesn't work up the hierarchy. You have to set the
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// explicit ThreadPlan you want to affect.
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}
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bool
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ThreadPlan::WillResume (StateType resume_state, bool current_plan)
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{
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m_cached_plan_explains_stop = eLazyBoolCalculate;
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if (current_plan)
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{
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP));
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if (log)
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{
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RegisterContext *reg_ctx = m_thread.GetRegisterContext().get();
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assert (reg_ctx);
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addr_t pc = reg_ctx->GetPC();
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addr_t sp = reg_ctx->GetSP();
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addr_t fp = reg_ctx->GetFP();
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log->Printf("%s Thread #%u (0x%p): tid = 0x%4.4" PRIx64 ", pc = 0x%8.8" PRIx64 ", sp = 0x%8.8" PRIx64 ", fp = 0x%8.8" PRIx64 ", "
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"plan = '%s', state = %s, stop others = %d",
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__FUNCTION__, m_thread.GetIndexID(),
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static_cast<void*>(&m_thread), m_thread.GetID(),
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static_cast<uint64_t>(pc), static_cast<uint64_t>(sp),
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static_cast<uint64_t>(fp), m_name.c_str(),
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StateAsCString(resume_state), StopOthers());
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}
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}
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return DoWillResume (resume_state, current_plan);
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}
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lldb::user_id_t
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ThreadPlan::GetNextID()
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{
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static uint32_t g_nextPlanID = 0;
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return ++g_nextPlanID;
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}
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void
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ThreadPlan::DidPush()
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{
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}
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void
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ThreadPlan::WillPop()
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{
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}
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bool
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ThreadPlan::OkayToDiscard()
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{
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return IsMasterPlan() ? m_okay_to_discard : true;
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}
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lldb::StateType
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ThreadPlan::RunState ()
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{
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if (m_tracer_sp && m_tracer_sp->TracingEnabled() && m_tracer_sp->SingleStepEnabled())
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return eStateStepping;
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else
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return GetPlanRunState();
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}
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bool
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ThreadPlan::IsUsuallyUnexplainedStopReason(lldb::StopReason reason)
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{
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switch (reason)
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{
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case eStopReasonWatchpoint:
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case eStopReasonSignal:
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case eStopReasonException:
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case eStopReasonExec:
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case eStopReasonThreadExiting:
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case eStopReasonInstrumentation:
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return true;
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default:
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return false;
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}
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}
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//----------------------------------------------------------------------
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// ThreadPlanNull
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//----------------------------------------------------------------------
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ThreadPlanNull::ThreadPlanNull (Thread &thread) :
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ThreadPlan (ThreadPlan::eKindNull,
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"Null Thread Plan",
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thread,
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eVoteNoOpinion,
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eVoteNoOpinion)
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{
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}
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ThreadPlanNull::~ThreadPlanNull() = default;
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void
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ThreadPlanNull::GetDescription (Stream *s,
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lldb::DescriptionLevel level)
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{
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s->PutCString("Null thread plan - thread has been destroyed.");
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}
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bool
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ThreadPlanNull::ValidatePlan (Stream *error)
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{
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#ifdef LLDB_CONFIGURATION_DEBUG
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fprintf(stderr, "error: %s called on thread that has been destroyed (tid = 0x%" PRIx64 ", ptid = 0x%" PRIx64 ")",
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LLVM_PRETTY_FUNCTION,
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m_thread.GetID(),
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m_thread.GetProtocolID());
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#else
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_THREAD));
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if (log)
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log->Error("%s called on thread that has been destroyed (tid = 0x%" PRIx64 ", ptid = 0x%" PRIx64 ")",
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LLVM_PRETTY_FUNCTION,
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m_thread.GetID(),
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m_thread.GetProtocolID());
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#endif
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return true;
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}
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bool
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ThreadPlanNull::ShouldStop (Event *event_ptr)
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{
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#ifdef LLDB_CONFIGURATION_DEBUG
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fprintf(stderr, "error: %s called on thread that has been destroyed (tid = 0x%" PRIx64 ", ptid = 0x%" PRIx64 ")",
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LLVM_PRETTY_FUNCTION,
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m_thread.GetID(),
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m_thread.GetProtocolID());
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#else
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_THREAD));
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if (log)
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log->Error("%s called on thread that has been destroyed (tid = 0x%" PRIx64 ", ptid = 0x%" PRIx64 ")",
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LLVM_PRETTY_FUNCTION,
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m_thread.GetID(),
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m_thread.GetProtocolID());
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#endif
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return true;
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}
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bool
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ThreadPlanNull::WillStop ()
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{
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#ifdef LLDB_CONFIGURATION_DEBUG
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fprintf(stderr, "error: %s called on thread that has been destroyed (tid = 0x%" PRIx64 ", ptid = 0x%" PRIx64 ")",
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LLVM_PRETTY_FUNCTION,
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m_thread.GetID(),
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m_thread.GetProtocolID());
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#else
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_THREAD));
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if (log)
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log->Error("%s called on thread that has been destroyed (tid = 0x%" PRIx64 ", ptid = 0x%" PRIx64 ")",
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LLVM_PRETTY_FUNCTION,
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m_thread.GetID(),
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m_thread.GetProtocolID());
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#endif
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return true;
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}
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bool
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ThreadPlanNull::DoPlanExplainsStop (Event *event_ptr)
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{
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#ifdef LLDB_CONFIGURATION_DEBUG
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fprintf(stderr, "error: %s called on thread that has been destroyed (tid = 0x%" PRIx64 ", ptid = 0x%" PRIx64 ")",
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LLVM_PRETTY_FUNCTION,
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m_thread.GetID(),
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m_thread.GetProtocolID());
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#else
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_THREAD));
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if (log)
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log->Error("%s called on thread that has been destroyed (tid = 0x%" PRIx64 ", ptid = 0x%" PRIx64 ")",
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LLVM_PRETTY_FUNCTION,
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m_thread.GetID(),
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m_thread.GetProtocolID());
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#endif
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return true;
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}
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// The null plan is never done.
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bool
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ThreadPlanNull::MischiefManaged ()
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{
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// The null plan is never done.
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#ifdef LLDB_CONFIGURATION_DEBUG
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fprintf(stderr, "error: %s called on thread that has been destroyed (tid = 0x%" PRIx64 ", ptid = 0x%" PRIx64 ")",
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LLVM_PRETTY_FUNCTION,
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m_thread.GetID(),
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m_thread.GetProtocolID());
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#else
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_THREAD));
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if (log)
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log->Error("%s called on thread that has been destroyed (tid = 0x%" PRIx64 ", ptid = 0x%" PRIx64 ")",
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LLVM_PRETTY_FUNCTION,
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m_thread.GetID(),
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m_thread.GetProtocolID());
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#endif
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return false;
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}
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lldb::StateType
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ThreadPlanNull::GetPlanRunState ()
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{
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// Not sure what to return here. This is a dead thread.
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#ifdef LLDB_CONFIGURATION_DEBUG
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fprintf(stderr, "error: %s called on thread that has been destroyed (tid = 0x%" PRIx64 ", ptid = 0x%" PRIx64 ")",
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LLVM_PRETTY_FUNCTION,
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m_thread.GetID(),
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m_thread.GetProtocolID());
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#else
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Log *log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_THREAD));
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if (log)
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log->Error("%s called on thread that has been destroyed (tid = 0x%" PRIx64 ", ptid = 0x%" PRIx64 ")",
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LLVM_PRETTY_FUNCTION,
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m_thread.GetID(),
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m_thread.GetProtocolID());
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#endif
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return eStateRunning;
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}
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