f4b47e1579
This will allow debugger plug-ins to make any instance of "lldb_private::StopInfo"
that can completely describe any stop reason. It also provides a framework for
doing intelligent things with the stop info at important times in the lifetime
of the inferior.
Examples include the signal stop info in StopInfoUnixSignal. It will check with
the process to see that the current action is for the signal. These actions
include wether to stop for the signal, wether the notify that the signal was
hit, and wether to pass the signal along to the inferior process. The
StopInfoUnixSignal class overrides the "ShouldStop()" method of StopInfo and
this allows the stop info to determine if it should stop at the signal or
continue the process.
StopInfo subclasses must override the following functions:
virtual lldb::StopReason
GetStopReason () const = 0;
virtual const char *
GetDescription () = 0;
StopInfo subclasses can override the following functions:
// If the subclass returns "false", the inferior will resume. The default
// version of this function returns "true" which means the default stop
// info will stop the process. The breakpoint subclass will check if
// the breakpoint wants us to stop by calling any installed callback on
// the breakpoint, and also checking if the breakpoint is for the current
// thread. Signals will check if they should stop based off of the
// UnixSignal settings in the process.
virtual bool
ShouldStop (Event *event_ptr);
// Sublasses can state if they want to notify the debugger when "ShouldStop"
// returns false. This would be handy for breakpoints where you want to
// log information and continue and is also used by the signal stop info
// to notify that a signal was received (after it checks with the process
// signal settings).
virtual bool
ShouldNotify (Event *event_ptr)
{
return false;
}
// Allow subclasses to do something intelligent right before we resume.
// The signal class will figure out if the signal should be propagated
// to the inferior process and pass that along to the debugger plug-ins.
virtual void
WillResume (lldb::StateType resume_state)
{
// By default, don't do anything
}
The support the Mach exceptions was moved into the lldb/source/Plugins/Process/Utility
folder and now doesn't polute the lldb_private::Thread class with platform
specific code.
llvm-svn: 110184
180 lines
5.1 KiB
C++
180 lines
5.1 KiB
C++
//===-- BreakpointLocationCollection.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/Breakpoint/BreakpointLocationCollection.h"
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#include "lldb/Core/ModuleList.h"
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#include "lldb/Breakpoint/BreakpointLocation.h"
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#include "lldb/Breakpoint/BreakpointLocationList.h"
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#include "lldb/Target/Thread.h"
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#include "lldb/Target/ThreadSpec.h"
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using namespace lldb;
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using namespace lldb_private;
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//----------------------------------------------------------------------
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// BreakpointLocationCollection constructor
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//----------------------------------------------------------------------
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BreakpointLocationCollection::BreakpointLocationCollection() :
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m_break_loc_collection()
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{
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}
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//----------------------------------------------------------------------
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// Destructor
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//----------------------------------------------------------------------
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BreakpointLocationCollection::~BreakpointLocationCollection()
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{
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}
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void
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BreakpointLocationCollection::Add(const BreakpointLocationSP &bp_loc)
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{
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BreakpointLocationSP old_bp_loc = FindByIDPair (bp_loc->GetBreakpoint().GetID(), bp_loc->GetID());
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if (!old_bp_loc.get())
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m_break_loc_collection.push_back(bp_loc);
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}
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bool
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BreakpointLocationCollection::Remove (lldb::break_id_t bp_id, lldb::break_id_t bp_loc_id)
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{
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collection::iterator pos = GetIDPairIterator(bp_id, bp_loc_id); // Predicate
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if (pos != m_break_loc_collection.end())
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{
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m_break_loc_collection.erase(pos);
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return true;
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}
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return false;
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}
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class BreakpointIDPairMatches
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{
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public:
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BreakpointIDPairMatches (lldb::break_id_t break_id, lldb::break_id_t break_loc_id) :
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m_break_id(break_id),
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m_break_loc_id (break_loc_id)
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{
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}
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bool operator() (const BreakpointLocationSP &bp_loc) const
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{
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return m_break_id == bp_loc->GetBreakpoint().GetID()
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&& m_break_loc_id == bp_loc->GetID();
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}
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private:
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const lldb::break_id_t m_break_id;
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const lldb::break_id_t m_break_loc_id;
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};
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BreakpointLocationCollection::collection::iterator
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BreakpointLocationCollection::GetIDPairIterator (lldb::break_id_t break_id, lldb::break_id_t break_loc_id)
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{
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return std::find_if(m_break_loc_collection.begin(), m_break_loc_collection.end(), // Search full range
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BreakpointIDPairMatches(break_id, break_loc_id)); // Predicate
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}
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BreakpointLocationCollection::collection::const_iterator
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BreakpointLocationCollection::GetIDPairConstIterator (lldb::break_id_t break_id, lldb::break_id_t break_loc_id) const
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{
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return std::find_if(m_break_loc_collection.begin(), m_break_loc_collection.end(), // Search full range
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BreakpointIDPairMatches(break_id, break_loc_id)); // Predicate
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}
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BreakpointLocationSP
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BreakpointLocationCollection::FindByIDPair (lldb::break_id_t break_id, lldb::break_id_t break_loc_id)
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{
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BreakpointLocationSP stop_sp;
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collection::iterator pos = GetIDPairIterator(break_id, break_loc_id);
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if (pos != m_break_loc_collection.end())
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stop_sp = *pos;
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return stop_sp;
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}
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const BreakpointLocationSP
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BreakpointLocationCollection::FindByIDPair (lldb::break_id_t break_id, lldb::break_id_t break_loc_id) const
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{
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BreakpointLocationSP stop_sp;
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collection::const_iterator pos = GetIDPairConstIterator(break_id, break_loc_id);
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if (pos != m_break_loc_collection.end())
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stop_sp = *pos;
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return stop_sp;
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}
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BreakpointLocationSP
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BreakpointLocationCollection::GetByIndex (uint32_t i)
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{
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BreakpointLocationSP stop_sp;
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if (i < m_break_loc_collection.size())
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stop_sp = m_break_loc_collection[i];
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return stop_sp;
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}
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const BreakpointLocationSP
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BreakpointLocationCollection::GetByIndex (uint32_t i) const
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{
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BreakpointLocationSP stop_sp;
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if (i < m_break_loc_collection.size())
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stop_sp = m_break_loc_collection[i];
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return stop_sp;
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}
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bool
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BreakpointLocationCollection::ShouldStop (StoppointCallbackContext *context)
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{
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bool shouldStop = false;
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const size_t count = GetSize();
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for (size_t i = 0; i < count; i++)
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{
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if (GetByIndex(i)->ShouldStop(context))
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shouldStop = true;
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}
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return shouldStop;
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}
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bool
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BreakpointLocationCollection::ValidForThisThread (Thread *thread)
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{
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collection::iterator pos,
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begin = m_break_loc_collection.begin(),
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end = m_break_loc_collection.end();
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for (pos = begin; pos != end; ++pos)
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{
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if ((*pos)->ValidForThisThread (thread))
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return true;
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}
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return false;
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}
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void
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BreakpointLocationCollection::GetDescription (Stream *s, lldb::DescriptionLevel level)
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{
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collection::iterator pos,
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begin = m_break_loc_collection.begin(),
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end = m_break_loc_collection.end();
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for (pos = begin; pos != end; ++pos)
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{
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if (pos != begin)
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s->PutChar(' ');
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(*pos)->GetDescription(s, level);
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}
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}
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