| //===-- ThreadPlanBase.cpp --------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include "lldb/Target/ThreadPlanBase.h" |
| |
| // C Includes |
| // C++ Includes |
| // Other libraries and framework includes |
| // Project includes |
| // |
| #include "lldb/Breakpoint/StoppointCallbackContext.h" |
| #include "lldb/Breakpoint/BreakpointSite.h" |
| #include "lldb/Breakpoint/BreakpointLocation.h" |
| #include "lldb/Breakpoint/Breakpoint.h" |
| #include "lldb/Core/Stream.h" |
| #include "lldb/Target/Process.h" |
| #include "lldb/Target/RegisterContext.h" |
| #include "lldb/Target/ThreadPlanContinue.h" |
| #include "lldb/Target/ThreadPlanStepOverBreakpoint.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| //---------------------------------------------------------------------- |
| // ThreadPlanBase: This one always stops, and never has anything particular |
| // to do. |
| // FIXME: The "signal handling" policies should probably go here. |
| //---------------------------------------------------------------------- |
| |
| ThreadPlanBase::ThreadPlanBase (Thread &thread) : |
| ThreadPlan("base plan", thread, eVoteYes, eVoteNoOpinion) |
| { |
| |
| } |
| |
| ThreadPlanBase::~ThreadPlanBase () |
| { |
| |
| } |
| |
| void |
| ThreadPlanBase::GetDescription (Stream *s, lldb::DescriptionLevel level) |
| { |
| s->Printf ("Base thread plan."); |
| } |
| |
| bool |
| ThreadPlanBase::ValidatePlan (Stream *error) |
| { |
| return true; |
| } |
| |
| bool |
| ThreadPlanBase::PlanExplainsStop () |
| { |
| return true; |
| } |
| |
| bool |
| ThreadPlanBase::ShouldStop (Event *event_ptr) |
| { |
| m_stop_vote = eVoteYes; |
| m_run_vote = eVoteYes; |
| |
| Thread::StopInfo stop_info; |
| if (m_thread.GetStopInfo(&stop_info)) |
| { |
| StopReason reason = stop_info.GetStopReason(); |
| switch (reason) |
| { |
| case eStopReasonInvalid: |
| case eStopReasonNone: |
| { |
| m_run_vote = eVoteNo; |
| m_stop_vote = eVoteNo; |
| return false; |
| } |
| case eStopReasonBreakpoint: |
| { |
| // The base plan checks for breakpoint hits. |
| |
| BreakpointSiteSP bp_site_sp; |
| //RegisterContext *reg_ctx = m_thread.GetRegisterContext(); |
| //lldb::addr_t pc = reg_ctx->GetPC(); |
| bp_site_sp = m_thread.GetProcess().GetBreakpointSiteList().FindByID (stop_info.GetBreakpointSiteID()); |
| |
| if (bp_site_sp && bp_site_sp->IsEnabled()) |
| { |
| // We want to step over the breakpoint and then continue. So push these two plans. |
| |
| StoppointCallbackContext hit_context(event_ptr, &m_thread.GetProcess(), &m_thread, m_thread.GetStackFrameAtIndex(0).get()); |
| bool should_stop = m_thread.GetProcess().GetBreakpointSiteList().ShouldStop(&hit_context, bp_site_sp->GetID()); |
| |
| if (!should_stop) |
| { |
| // If we aren't going to stop at this breakpoint, and it is internal, don't report this stop or the subsequent |
| // running event. Otherwise we will post the stopped & running, but the stopped event will get marked |
| // with "restarted" so the UI will know to wait and expect the consequent "running". |
| uint32_t i; |
| bool is_wholly_internal = true; |
| |
| for (i = 0; i < bp_site_sp->GetNumberOfOwners(); i++) |
| { |
| if (!bp_site_sp->GetOwnerAtIndex(i)->GetBreakpoint().IsInternal()) |
| { |
| is_wholly_internal = false; |
| break; |
| } |
| } |
| if (is_wholly_internal) |
| { |
| m_stop_vote = eVoteNo; |
| m_run_vote = eVoteNo; |
| } |
| else |
| { |
| m_stop_vote = eVoteYes; |
| m_run_vote = eVoteYes; |
| } |
| |
| } |
| else |
| { |
| // If we are going to stop for a breakpoint, then unship the other plans |
| // at this point. Don't force the discard, however, so Master plans can stay |
| // in place if they want to. |
| m_thread.DiscardThreadPlans(false); |
| } |
| |
| return should_stop; |
| } |
| } |
| case eStopReasonException: |
| // If we crashed, discard thread plans and stop. Don't force the discard, however, |
| // since on rerun the target may clean up this exception and continue normally from there. |
| m_thread.DiscardThreadPlans(false); |
| return true; |
| case eStopReasonSignal: |
| { |
| // Check the signal handling, and if we are stopping for the signal, |
| // discard the plans and stop. |
| UnixSignals &signals = m_thread.GetProcess().GetUnixSignals(); |
| uint32_t signo = stop_info.GetSignal(); |
| if (signals.GetShouldStop(signo)) |
| { |
| m_thread.DiscardThreadPlans(false); |
| return true; |
| } |
| else |
| { |
| // We're not going to stop, but while we are here, let's figure out |
| // whether to report this. |
| if (signals.GetShouldNotify(signo)) |
| m_stop_vote = eVoteYes; |
| else |
| m_stop_vote = eVoteNo; |
| |
| return false; |
| } |
| } |
| default: |
| return true; |
| } |
| |
| } |
| |
| // If there's no explicit reason to stop, then we will continue. |
| return false; |
| } |
| |
| bool |
| ThreadPlanBase::StopOthers () |
| { |
| return false; |
| } |
| |
| StateType |
| ThreadPlanBase::RunState () |
| { |
| return eStateRunning; |
| } |
| |
| bool |
| ThreadPlanBase::WillStop () |
| { |
| return true; |
| } |
| |
| // The base plan is never done. |
| bool |
| ThreadPlanBase::MischiefManaged () |
| { |
| // The base plan is never done. |
| return false; |
| } |
| |