forked from OSchip/llvm-project
765 lines
23 KiB
C++
765 lines
23 KiB
C++
//===-- SBThread.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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#include "lldb/API/SBThread.h"
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#include "lldb/API/SBSymbolContext.h"
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#include "lldb/API/SBFileSpec.h"
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#include "lldb/API/SBStream.h"
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#include "lldb/Breakpoint/BreakpointLocation.h"
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#include "lldb/Core/Debugger.h"
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#include "lldb/Core/Stream.h"
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#include "lldb/Core/StreamFile.h"
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#include "lldb/Interpreter/CommandInterpreter.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/Symbol/SymbolContext.h"
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#include "lldb/Symbol/CompileUnit.h"
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#include "lldb/Target/StopInfo.h"
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#include "lldb/Target/Target.h"
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#include "lldb/Target/ThreadPlan.h"
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#include "lldb/Target/ThreadPlanStepInstruction.h"
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#include "lldb/Target/ThreadPlanStepOut.h"
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#include "lldb/Target/ThreadPlanStepRange.h"
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#include "lldb/Target/ThreadPlanStepInRange.h"
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#include "lldb/API/SBAddress.h"
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#include "lldb/API/SBFrame.h"
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#include "lldb/API/SBSourceManager.h"
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#include "lldb/API/SBDebugger.h"
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#include "lldb/API/SBProcess.h"
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using namespace lldb;
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using namespace lldb_private;
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//----------------------------------------------------------------------
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// Constructors
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//----------------------------------------------------------------------
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SBThread::SBThread () :
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m_opaque_sp ()
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{
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}
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SBThread::SBThread (const ThreadSP& lldb_object_sp) :
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m_opaque_sp (lldb_object_sp)
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{
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}
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SBThread::SBThread (const SBThread &rhs) :
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m_opaque_sp (rhs.m_opaque_sp)
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{
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}
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//----------------------------------------------------------------------
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// Assignment operator
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//----------------------------------------------------------------------
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const lldb::SBThread &
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SBThread::operator = (const SBThread &rhs)
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{
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if (this != &rhs)
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m_opaque_sp = rhs.m_opaque_sp;
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return *this;
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}
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//----------------------------------------------------------------------
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// Destructor
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//----------------------------------------------------------------------
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SBThread::~SBThread()
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{
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}
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bool
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SBThread::IsValid() const
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{
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return m_opaque_sp != NULL;
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}
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void
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SBThread::Clear ()
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{
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m_opaque_sp.reset();
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}
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StopReason
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SBThread::GetStopReason()
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{
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LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
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StopReason reason = eStopReasonInvalid;
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if (m_opaque_sp)
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{
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Mutex::Locker api_locker (m_opaque_sp->GetProcess().GetTarget().GetAPIMutex());
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StopInfoSP stop_info_sp = m_opaque_sp->GetStopInfo ();
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if (stop_info_sp)
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reason = stop_info_sp->GetStopReason();
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}
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if (log)
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log->Printf ("SBThread(%p)::GetStopReason () => %s", m_opaque_sp.get(),
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Thread::StopReasonAsCString (reason));
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return reason;
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}
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size_t
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SBThread::GetStopReasonDataCount ()
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{
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if (m_opaque_sp)
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{
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Mutex::Locker api_locker (m_opaque_sp->GetProcess().GetTarget().GetAPIMutex());
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StopInfoSP stop_info_sp = m_opaque_sp->GetStopInfo ();
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if (stop_info_sp)
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{
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StopReason reason = stop_info_sp->GetStopReason();
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switch (reason)
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{
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case eStopReasonInvalid:
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case eStopReasonNone:
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case eStopReasonTrace:
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case eStopReasonPlanComplete:
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// There is no data for these stop reasons.
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return 0;
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case eStopReasonBreakpoint:
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{
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break_id_t site_id = stop_info_sp->GetValue();
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lldb::BreakpointSiteSP bp_site_sp (m_opaque_sp->GetProcess().GetBreakpointSiteList().FindByID (site_id));
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if (bp_site_sp)
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return bp_site_sp->GetNumberOfOwners () * 2;
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else
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return 0; // Breakpoint must have cleared itself...
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}
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break;
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case eStopReasonWatchpoint:
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assert (!"implement watchpoint support in SBThread::GetStopReasonDataCount ()");
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return 0; // We don't have watchpoint support yet...
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case eStopReasonSignal:
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return 1;
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case eStopReasonException:
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return 1;
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}
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}
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}
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return 0;
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}
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uint64_t
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SBThread::GetStopReasonDataAtIndex (uint32_t idx)
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{
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if (m_opaque_sp)
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{
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Mutex::Locker api_locker (m_opaque_sp->GetProcess().GetTarget().GetAPIMutex());
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StopInfoSP stop_info_sp = m_opaque_sp->GetStopInfo ();
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if (stop_info_sp)
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{
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StopReason reason = stop_info_sp->GetStopReason();
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switch (reason)
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{
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case eStopReasonInvalid:
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case eStopReasonNone:
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case eStopReasonTrace:
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case eStopReasonPlanComplete:
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// There is no data for these stop reasons.
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return 0;
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case eStopReasonBreakpoint:
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{
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break_id_t site_id = stop_info_sp->GetValue();
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lldb::BreakpointSiteSP bp_site_sp (m_opaque_sp->GetProcess().GetBreakpointSiteList().FindByID (site_id));
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if (bp_site_sp)
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{
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uint32_t bp_index = idx / 2;
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BreakpointLocationSP bp_loc_sp (bp_site_sp->GetOwnerAtIndex (bp_index));
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if (bp_loc_sp)
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{
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if (bp_index & 1)
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{
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// Odd idx, return the breakpoint location ID
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return bp_loc_sp->GetID();
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}
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else
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{
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// Even idx, return the breakpoint ID
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return bp_loc_sp->GetBreakpoint().GetID();
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}
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}
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}
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return LLDB_INVALID_BREAK_ID;
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}
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break;
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case eStopReasonWatchpoint:
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assert (!"implement watchpoint support in SBThread::GetStopReasonDataCount ()");
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return 0; // We don't have watchpoint support yet...
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case eStopReasonSignal:
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return stop_info_sp->GetValue();
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case eStopReasonException:
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return stop_info_sp->GetValue();
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}
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}
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}
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return 0;
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}
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size_t
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SBThread::GetStopDescription (char *dst, size_t dst_len)
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{
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LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
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if (m_opaque_sp)
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{
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Mutex::Locker api_locker (m_opaque_sp->GetProcess().GetTarget().GetAPIMutex());
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StopInfoSP stop_info_sp = m_opaque_sp->GetStopInfo ();
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if (stop_info_sp)
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{
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const char *stop_desc = stop_info_sp->GetDescription();
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if (stop_desc)
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{
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if (log)
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log->Printf ("SBThread(%p)::GetStopDescription (dst, dst_len) => \"%s\"",
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m_opaque_sp.get(), stop_desc);
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if (dst)
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return ::snprintf (dst, dst_len, "%s", stop_desc);
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else
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{
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// NULL dst passed in, return the length needed to contain the description
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return ::strlen (stop_desc) + 1; // Include the NULL byte for size
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}
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}
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else
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{
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size_t stop_desc_len = 0;
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switch (stop_info_sp->GetStopReason())
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{
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case eStopReasonTrace:
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case eStopReasonPlanComplete:
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{
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static char trace_desc[] = "step";
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stop_desc = trace_desc;
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stop_desc_len = sizeof(trace_desc); // Include the NULL byte for size
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}
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break;
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case eStopReasonBreakpoint:
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{
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static char bp_desc[] = "breakpoint hit";
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stop_desc = bp_desc;
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stop_desc_len = sizeof(bp_desc); // Include the NULL byte for size
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}
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break;
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case eStopReasonWatchpoint:
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{
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static char wp_desc[] = "watchpoint hit";
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stop_desc = wp_desc;
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stop_desc_len = sizeof(wp_desc); // Include the NULL byte for size
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}
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break;
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case eStopReasonSignal:
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{
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stop_desc = m_opaque_sp->GetProcess().GetUnixSignals ().GetSignalAsCString (stop_info_sp->GetValue());
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if (stop_desc == NULL || stop_desc[0] == '\0')
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{
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static char signal_desc[] = "signal";
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stop_desc = signal_desc;
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stop_desc_len = sizeof(signal_desc); // Include the NULL byte for size
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}
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}
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break;
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case eStopReasonException:
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{
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char exc_desc[] = "exception";
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stop_desc = exc_desc;
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stop_desc_len = sizeof(exc_desc); // Include the NULL byte for size
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}
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break;
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default:
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break;
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}
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if (stop_desc && stop_desc[0])
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{
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if (log)
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log->Printf ("SBThread(%p)::GetStopDescription (dst, dst_len) => '%s'",
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m_opaque_sp.get(), stop_desc);
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if (dst)
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return ::snprintf (dst, dst_len, "%s", stop_desc) + 1; // Include the NULL byte
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if (stop_desc_len == 0)
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stop_desc_len = ::strlen (stop_desc) + 1; // Include the NULL byte
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return stop_desc_len;
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}
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}
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}
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}
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if (dst)
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*dst = 0;
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return 0;
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}
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void
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SBThread::SetThread (const ThreadSP& lldb_object_sp)
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{
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m_opaque_sp = lldb_object_sp;
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}
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lldb::tid_t
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SBThread::GetThreadID () const
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{
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LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
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lldb::tid_t tid = LLDB_INVALID_THREAD_ID;
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if (m_opaque_sp)
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tid = m_opaque_sp->GetID();
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if (log)
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log->Printf ("SBThread(%p)::GetThreadID () => 0x%4.4x", m_opaque_sp.get(), tid);
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return tid;
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}
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uint32_t
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SBThread::GetIndexID () const
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{
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if (m_opaque_sp)
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return m_opaque_sp->GetIndexID();
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return LLDB_INVALID_INDEX32;
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}
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const char *
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SBThread::GetName () const
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{
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const char *name = NULL;
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if (m_opaque_sp)
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{
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Mutex::Locker api_locker (m_opaque_sp->GetProcess().GetTarget().GetAPIMutex());
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name = m_opaque_sp->GetName();
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}
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LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
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if (log)
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log->Printf ("SBThread(%p)::GetName () => %s", m_opaque_sp.get(), name ? name : "NULL");
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return name;
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}
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const char *
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SBThread::GetQueueName () const
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{
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const char *name = NULL;
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if (m_opaque_sp)
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{
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Mutex::Locker api_locker (m_opaque_sp->GetProcess().GetTarget().GetAPIMutex());
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name = m_opaque_sp->GetQueueName();
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}
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LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
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if (log)
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log->Printf ("SBThread(%p)::GetQueueName () => %s", m_opaque_sp.get(), name ? name : "NULL");
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return name;
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}
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void
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SBThread::StepOver (lldb::RunMode stop_other_threads)
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{
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LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
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if (log)
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log->Printf ("SBThread(%p)::StepOver (stop_other_threads='%s')", m_opaque_sp.get(),
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Thread::RunModeAsCString (stop_other_threads));
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if (m_opaque_sp)
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{
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Mutex::Locker api_locker (m_opaque_sp->GetProcess().GetTarget().GetAPIMutex());
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bool abort_other_plans = true;
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StackFrameSP frame_sp(m_opaque_sp->GetStackFrameAtIndex (0));
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if (frame_sp)
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{
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if (frame_sp->HasDebugInformation ())
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{
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SymbolContext sc(frame_sp->GetSymbolContext(eSymbolContextEverything));
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m_opaque_sp->QueueThreadPlanForStepRange (abort_other_plans,
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eStepTypeOver,
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sc.line_entry.range,
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sc,
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stop_other_threads,
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false);
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}
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else
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{
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m_opaque_sp->QueueThreadPlanForStepSingleInstruction (true,
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abort_other_plans,
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stop_other_threads);
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}
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}
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Process &process = m_opaque_sp->GetProcess();
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// Why do we need to set the current thread by ID here???
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process.GetThreadList().SetSelectedThreadByID (m_opaque_sp->GetID());
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Error error (process.Resume());
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if (error.Success())
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{
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// If we are doing synchronous mode, then wait for the
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// process to stop yet again!
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if (process.GetTarget().GetDebugger().GetAsyncExecution () == false)
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process.WaitForProcessToStop (NULL);
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}
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}
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}
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void
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SBThread::StepInto (lldb::RunMode stop_other_threads)
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{
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LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
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if (log)
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log->Printf ("SBThread(%p)::StepInto (stop_other_threads='%s')", m_opaque_sp.get(),
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Thread::RunModeAsCString (stop_other_threads));
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if (m_opaque_sp)
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{
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Mutex::Locker api_locker (m_opaque_sp->GetProcess().GetTarget().GetAPIMutex());
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bool abort_other_plans = true;
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StackFrameSP frame_sp(m_opaque_sp->GetStackFrameAtIndex (0));
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if (frame_sp && frame_sp->HasDebugInformation ())
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{
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bool avoid_code_without_debug_info = true;
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SymbolContext sc(frame_sp->GetSymbolContext(eSymbolContextEverything));
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m_opaque_sp->QueueThreadPlanForStepRange (abort_other_plans,
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eStepTypeInto,
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sc.line_entry.range,
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sc,
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stop_other_threads,
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avoid_code_without_debug_info);
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}
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else
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{
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m_opaque_sp->QueueThreadPlanForStepSingleInstruction (false,
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abort_other_plans,
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stop_other_threads);
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}
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Process &process = m_opaque_sp->GetProcess();
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// Why do we need to set the current thread by ID here???
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process.GetThreadList().SetSelectedThreadByID (m_opaque_sp->GetID());
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Error error (process.Resume());
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if (error.Success())
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{
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// If we are doing synchronous mode, then wait for the
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// process to stop yet again!
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if (process.GetTarget().GetDebugger().GetAsyncExecution () == false)
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process.WaitForProcessToStop (NULL);
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}
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}
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}
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void
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SBThread::StepOut ()
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{
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LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
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if (log)
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log->Printf ("SBThread(%p)::StepOut ()", m_opaque_sp.get());
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if (m_opaque_sp)
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{
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Mutex::Locker api_locker (m_opaque_sp->GetProcess().GetTarget().GetAPIMutex());
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bool abort_other_plans = true;
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bool stop_other_threads = true;
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m_opaque_sp->QueueThreadPlanForStepOut (abort_other_plans, NULL, false, stop_other_threads, eVoteYes, eVoteNoOpinion);
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Process &process = m_opaque_sp->GetProcess();
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process.GetThreadList().SetSelectedThreadByID (m_opaque_sp->GetID());
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Error error (process.Resume());
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if (error.Success())
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{
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// If we are doing synchronous mode, then wait for the
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// process to stop yet again!
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if (process.GetTarget().GetDebugger().GetAsyncExecution () == false)
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process.WaitForProcessToStop (NULL);
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}
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}
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}
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void
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SBThread::StepInstruction (bool step_over)
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{
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LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
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if (log)
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log->Printf ("SBThread(%p)::StepInstruction (step_over=%i)", m_opaque_sp.get(), step_over);
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if (m_opaque_sp)
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{
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Mutex::Locker api_locker (m_opaque_sp->GetProcess().GetTarget().GetAPIMutex());
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m_opaque_sp->QueueThreadPlanForStepSingleInstruction (step_over, true, true);
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Process &process = m_opaque_sp->GetProcess();
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process.GetThreadList().SetSelectedThreadByID (m_opaque_sp->GetID());
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Error error (process.Resume());
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if (error.Success())
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{
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// If we are doing synchronous mode, then wait for the
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// process to stop yet again!
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if (process.GetTarget().GetDebugger().GetAsyncExecution () == false)
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process.WaitForProcessToStop (NULL);
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}
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}
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|
}
|
|
|
|
void
|
|
SBThread::RunToAddress (lldb::addr_t addr)
|
|
{
|
|
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
|
|
if (log)
|
|
log->Printf ("SBThread(%p)::RunToAddress (addr=0x%llx)", m_opaque_sp.get(), addr);
|
|
|
|
if (m_opaque_sp)
|
|
{
|
|
bool abort_other_plans = true;
|
|
bool stop_other_threads = true;
|
|
|
|
Address target_addr (NULL, addr);
|
|
|
|
m_opaque_sp->QueueThreadPlanForRunToAddress (abort_other_plans, target_addr, stop_other_threads);
|
|
Process &process = m_opaque_sp->GetProcess();
|
|
process.GetThreadList().SetSelectedThreadByID (m_opaque_sp->GetID());
|
|
Error error (process.Resume());
|
|
if (error.Success())
|
|
{
|
|
// If we are doing synchronous mode, then wait for the
|
|
// process to stop yet again!
|
|
if (process.GetTarget().GetDebugger().GetAsyncExecution () == false)
|
|
process.WaitForProcessToStop (NULL);
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
bool
|
|
SBThread::Suspend()
|
|
{
|
|
if (m_opaque_sp)
|
|
{
|
|
m_opaque_sp->SetResumeState (eStateSuspended);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
SBThread::Resume ()
|
|
{
|
|
if (m_opaque_sp)
|
|
{
|
|
m_opaque_sp->SetResumeState (eStateRunning);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
SBThread::IsSuspended()
|
|
{
|
|
if (m_opaque_sp)
|
|
m_opaque_sp->GetResumeState () == eStateSuspended;
|
|
return false;
|
|
}
|
|
|
|
SBProcess
|
|
SBThread::GetProcess ()
|
|
{
|
|
|
|
SBProcess process;
|
|
if (m_opaque_sp)
|
|
{
|
|
// Have to go up to the target so we can get a shared pointer to our process...
|
|
process.SetProcess(m_opaque_sp->GetProcess().GetTarget().GetProcessSP());
|
|
}
|
|
|
|
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
if (log)
|
|
{
|
|
SBStream sstr;
|
|
process.GetDescription (sstr);
|
|
log->Printf ("SBThread(%p)::GetProcess () => SBProcess(%p): %s", m_opaque_sp.get(),
|
|
process.get(), sstr.GetData());
|
|
}
|
|
|
|
return process;
|
|
}
|
|
|
|
uint32_t
|
|
SBThread::GetNumFrames ()
|
|
{
|
|
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
|
|
uint32_t num_frames = 0;
|
|
if (m_opaque_sp)
|
|
{
|
|
Mutex::Locker api_locker (m_opaque_sp->GetProcess().GetTarget().GetAPIMutex());
|
|
num_frames = m_opaque_sp->GetStackFrameCount();
|
|
}
|
|
|
|
if (log)
|
|
log->Printf ("SBThread(%p)::GetNumFrames () => %u", m_opaque_sp.get(), num_frames);
|
|
|
|
return num_frames;
|
|
}
|
|
|
|
SBFrame
|
|
SBThread::GetFrameAtIndex (uint32_t idx)
|
|
{
|
|
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
|
|
SBFrame sb_frame;
|
|
if (m_opaque_sp)
|
|
{
|
|
Mutex::Locker api_locker (m_opaque_sp->GetProcess().GetTarget().GetAPIMutex());
|
|
sb_frame.SetFrame (m_opaque_sp->GetStackFrameAtIndex (idx));
|
|
}
|
|
|
|
if (log)
|
|
{
|
|
SBStream sstr;
|
|
sb_frame.GetDescription (sstr);
|
|
log->Printf ("SBThread(%p)::GetFrameAtIndex (idx=%d) => SBFrame(%p): %s",
|
|
m_opaque_sp.get(), idx, sb_frame.get(), sstr.GetData());
|
|
}
|
|
|
|
return sb_frame;
|
|
}
|
|
|
|
lldb::SBFrame
|
|
SBThread::GetSelectedFrame ()
|
|
{
|
|
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
|
|
SBFrame sb_frame;
|
|
if (m_opaque_sp)
|
|
{
|
|
Mutex::Locker api_locker (m_opaque_sp->GetProcess().GetTarget().GetAPIMutex());
|
|
sb_frame.SetFrame (m_opaque_sp->GetSelectedFrame ());
|
|
}
|
|
|
|
if (log)
|
|
{
|
|
SBStream sstr;
|
|
sb_frame.GetDescription (sstr);
|
|
log->Printf ("SBThread(%p)::GetSelectedFrame () => SBFrame(%p): %s",
|
|
m_opaque_sp.get(), sb_frame.get(), sstr.GetData());
|
|
}
|
|
|
|
return sb_frame;
|
|
}
|
|
|
|
lldb::SBFrame
|
|
SBThread::SetSelectedFrame (uint32_t idx)
|
|
{
|
|
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_API));
|
|
|
|
SBFrame sb_frame;
|
|
if (m_opaque_sp)
|
|
{
|
|
Mutex::Locker api_locker (m_opaque_sp->GetProcess().GetTarget().GetAPIMutex());
|
|
lldb::StackFrameSP frame_sp (m_opaque_sp->GetStackFrameAtIndex (idx));
|
|
if (frame_sp)
|
|
{
|
|
m_opaque_sp->SetSelectedFrame (frame_sp.get());
|
|
sb_frame.SetFrame (frame_sp);
|
|
}
|
|
}
|
|
|
|
if (log)
|
|
{
|
|
SBStream sstr;
|
|
sb_frame.GetDescription (sstr);
|
|
log->Printf ("SBThread(%p)::SetSelectedFrame (idx=%u) => SBFrame(%p): %s",
|
|
m_opaque_sp.get(), idx, sb_frame.get(), sstr.GetData());
|
|
}
|
|
return sb_frame;
|
|
}
|
|
|
|
|
|
bool
|
|
SBThread::operator == (const SBThread &rhs) const
|
|
{
|
|
return m_opaque_sp.get() == rhs.m_opaque_sp.get();
|
|
}
|
|
|
|
bool
|
|
SBThread::operator != (const SBThread &rhs) const
|
|
{
|
|
return m_opaque_sp.get() != rhs.m_opaque_sp.get();
|
|
}
|
|
|
|
lldb_private::Thread *
|
|
SBThread::get ()
|
|
{
|
|
return m_opaque_sp.get();
|
|
}
|
|
|
|
const lldb_private::Thread *
|
|
SBThread::operator->() const
|
|
{
|
|
return m_opaque_sp.get();
|
|
}
|
|
|
|
const lldb_private::Thread &
|
|
SBThread::operator*() const
|
|
{
|
|
return *m_opaque_sp;
|
|
}
|
|
|
|
lldb_private::Thread *
|
|
SBThread::operator->()
|
|
{
|
|
return m_opaque_sp.get();
|
|
}
|
|
|
|
lldb_private::Thread &
|
|
SBThread::operator*()
|
|
{
|
|
return *m_opaque_sp;
|
|
}
|
|
|
|
bool
|
|
SBThread::GetDescription (SBStream &description) const
|
|
{
|
|
if (m_opaque_sp)
|
|
{
|
|
StreamString strm;
|
|
description.Printf("SBThread: tid = 0x%4.4x", m_opaque_sp->GetID());
|
|
}
|
|
else
|
|
description.Printf ("No value");
|
|
|
|
return true;
|
|
}
|