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81c22f6104
process IDs, and thread IDs, but was mainly needed for for the UserID's for Types so that DWARF with debug map can work flawlessly. With DWARF in .o files the type ID was the DIE offset in the DWARF for the .o file which is not unique across all .o files, so now the SymbolFileDWARFDebugMap class will make the .o file index part (the high 32 bits) of the unique type identifier so it can uniquely identify the types. llvm-svn: 142534
143 lines
4.0 KiB
C++
143 lines
4.0 KiB
C++
//===-- ThreadPlanStepOverBreakpoint.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/Target/ThreadPlanStepOverBreakpoint.h"
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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/lldb-private-log.h"
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#include "lldb/Core/Log.h"
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#include "lldb/Core/Stream.h"
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#include "lldb/Target/Process.h"
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#include "lldb/Target/RegisterContext.h"
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using namespace lldb;
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using namespace lldb_private;
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//----------------------------------------------------------------------
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// ThreadPlanStepOverBreakpoint: Single steps over a breakpoint bp_site_sp at the pc.
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//----------------------------------------------------------------------
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ThreadPlanStepOverBreakpoint::ThreadPlanStepOverBreakpoint (Thread &thread) :
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ThreadPlan (ThreadPlan::eKindStepOverBreakpoint, "Step over breakpoint trap",
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thread,
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eVoteNo,
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eVoteNoOpinion), // We need to report the run since this happens
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// first in the thread plan stack when stepping
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// over a breakpoint
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m_breakpoint_addr (LLDB_INVALID_ADDRESS),
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m_auto_continue(false)
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{
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m_breakpoint_addr = m_thread.GetRegisterContext()->GetPC();
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m_breakpoint_site_id = m_thread.GetProcess().GetBreakpointSiteList().FindIDByAddress (m_breakpoint_addr);
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}
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ThreadPlanStepOverBreakpoint::~ThreadPlanStepOverBreakpoint ()
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{
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}
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void
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ThreadPlanStepOverBreakpoint::GetDescription (Stream *s, lldb::DescriptionLevel level)
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{
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s->Printf("Single stepping past breakpoint site %llu at 0x%llx", m_breakpoint_site_id, (uint64_t)m_breakpoint_addr);
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}
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bool
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ThreadPlanStepOverBreakpoint::ValidatePlan (Stream *error)
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{
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return true;
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}
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bool
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ThreadPlanStepOverBreakpoint::PlanExplainsStop ()
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{
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return true;
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}
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bool
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ThreadPlanStepOverBreakpoint::ShouldStop (Event *event_ptr)
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{
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return false;
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}
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bool
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ThreadPlanStepOverBreakpoint::StopOthers ()
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{
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return true;
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}
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StateType
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ThreadPlanStepOverBreakpoint::GetPlanRunState ()
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{
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return eStateStepping;
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}
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bool
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ThreadPlanStepOverBreakpoint::WillResume (StateType resume_state, bool current_plan)
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{
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ThreadPlan::WillResume (resume_state, current_plan);
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if (current_plan)
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{
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BreakpointSiteSP bp_site_sp (m_thread.GetProcess().GetBreakpointSiteList().FindByAddress (m_breakpoint_addr));
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if (bp_site_sp && bp_site_sp->IsEnabled())
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m_thread.GetProcess().DisableBreakpoint (bp_site_sp.get());
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}
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return true;
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}
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bool
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ThreadPlanStepOverBreakpoint::WillStop ()
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{
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BreakpointSiteSP bp_site_sp (m_thread.GetProcess().GetBreakpointSiteList().FindByAddress (m_breakpoint_addr));
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if (bp_site_sp)
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m_thread.GetProcess().EnableBreakpoint (bp_site_sp.get());
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return true;
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}
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bool
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ThreadPlanStepOverBreakpoint::MischiefManaged ()
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{
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lldb::addr_t pc_addr = m_thread.GetRegisterContext()->GetPC();
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if (pc_addr == m_breakpoint_addr)
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{
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// If we are still at the PC of our breakpoint, then for some reason we didn't
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// get a chance to run.
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return false;
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}
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else
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{
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LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_STEP));
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if (log)
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log->Printf("Completed step over breakpoint plan.");
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// Otherwise, re-enable the breakpoint we were stepping over, and we're done.
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BreakpointSiteSP bp_site_sp (m_thread.GetProcess().GetBreakpointSiteList().FindByAddress (m_breakpoint_addr));
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if (bp_site_sp)
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m_thread.GetProcess().EnableBreakpoint (bp_site_sp.get());
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ThreadPlan::MischiefManaged ();
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return true;
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}
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}
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void
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ThreadPlanStepOverBreakpoint::SetAutoContinue (bool do_it)
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{
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m_auto_continue = do_it;
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}
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bool
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ThreadPlanStepOverBreakpoint::ShouldAutoContinue (Event *event_ptr)
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{
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return m_auto_continue;
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}
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