forked from OSchip/llvm-project
802 lines
28 KiB
C++
802 lines
28 KiB
C++
//===-- StopInfo.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/StopInfo.h"
|
|
|
|
// C Includes
|
|
// C++ Includes
|
|
#include <string>
|
|
|
|
// Other libraries and framework includes
|
|
// Project includes
|
|
#include "lldb/Core/Log.h"
|
|
#include "lldb/Breakpoint/Breakpoint.h"
|
|
#include "lldb/Breakpoint/BreakpointLocation.h"
|
|
#include "lldb/Breakpoint/StoppointCallbackContext.h"
|
|
#include "lldb/Breakpoint/Watchpoint.h"
|
|
#include "lldb/Core/Debugger.h"
|
|
#include "lldb/Core/StreamString.h"
|
|
#include "lldb/Expression/ClangUserExpression.h"
|
|
#include "lldb/Target/Target.h"
|
|
#include "lldb/Target/Thread.h"
|
|
#include "lldb/Target/ThreadPlan.h"
|
|
#include "lldb/Target/Process.h"
|
|
#include "lldb/Target/UnixSignals.h"
|
|
|
|
using namespace lldb;
|
|
using namespace lldb_private;
|
|
|
|
StopInfo::StopInfo (Thread &thread, uint64_t value) :
|
|
m_thread (thread),
|
|
m_stop_id (thread.GetProcess()->GetStopID()),
|
|
m_resume_id (thread.GetProcess()->GetResumeID()),
|
|
m_value (value)
|
|
{
|
|
}
|
|
|
|
bool
|
|
StopInfo::IsValid () const
|
|
{
|
|
return m_thread.GetProcess()->GetStopID() == m_stop_id;
|
|
}
|
|
|
|
void
|
|
StopInfo::MakeStopInfoValid ()
|
|
{
|
|
m_stop_id = m_thread.GetProcess()->GetStopID();
|
|
m_resume_id = m_thread.GetProcess()->GetResumeID();
|
|
}
|
|
|
|
bool
|
|
StopInfo::HasTargetRunSinceMe ()
|
|
{
|
|
lldb::StateType ret_type = m_thread.GetProcess()->GetPrivateState();
|
|
if (ret_type == eStateRunning)
|
|
{
|
|
return true;
|
|
}
|
|
else if (ret_type == eStateStopped)
|
|
{
|
|
// This is a little tricky. We want to count "run and stopped again before you could
|
|
// ask this question as a "TRUE" answer to HasTargetRunSinceMe. But we don't want to
|
|
// include any running of the target done for expressions. So we track both resumes,
|
|
// and resumes caused by expressions, and check if there are any resumes NOT caused
|
|
// by expressions.
|
|
|
|
uint32_t curr_resume_id = m_thread.GetProcess()->GetResumeID();
|
|
uint32_t last_user_expression_id = m_thread.GetProcess()->GetLastUserExpressionResumeID ();
|
|
if (curr_resume_id == m_resume_id)
|
|
{
|
|
return false;
|
|
}
|
|
else if (curr_resume_id > last_user_expression_id)
|
|
{
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
//----------------------------------------------------------------------
|
|
// StopInfoBreakpoint
|
|
//----------------------------------------------------------------------
|
|
|
|
namespace lldb_private
|
|
{
|
|
class StopInfoBreakpoint : public StopInfo
|
|
{
|
|
public:
|
|
|
|
StopInfoBreakpoint (Thread &thread, break_id_t break_id) :
|
|
StopInfo (thread, break_id),
|
|
m_description(),
|
|
m_should_stop (false),
|
|
m_should_stop_is_valid (false),
|
|
m_should_perform_action (true),
|
|
m_address (LLDB_INVALID_ADDRESS)
|
|
{
|
|
BreakpointSiteSP bp_site_sp (m_thread.GetProcess()->GetBreakpointSiteList().FindByID (m_value));
|
|
if (bp_site_sp)
|
|
{
|
|
m_address = bp_site_sp->GetLoadAddress();
|
|
}
|
|
}
|
|
|
|
StopInfoBreakpoint (Thread &thread, break_id_t break_id, bool should_stop) :
|
|
StopInfo (thread, break_id),
|
|
m_description(),
|
|
m_should_stop (should_stop),
|
|
m_should_stop_is_valid (true),
|
|
m_should_perform_action (true),
|
|
m_address (LLDB_INVALID_ADDRESS)
|
|
{
|
|
BreakpointSiteSP bp_site_sp (m_thread.GetProcess()->GetBreakpointSiteList().FindByID (m_value));
|
|
if (bp_site_sp)
|
|
{
|
|
m_address = bp_site_sp->GetLoadAddress();
|
|
}
|
|
}
|
|
|
|
virtual ~StopInfoBreakpoint ()
|
|
{
|
|
}
|
|
|
|
virtual StopReason
|
|
GetStopReason () const
|
|
{
|
|
return eStopReasonBreakpoint;
|
|
}
|
|
|
|
virtual bool
|
|
ShouldStop (Event *event_ptr)
|
|
{
|
|
if (!m_should_stop_is_valid)
|
|
{
|
|
// Only check once if we should stop at a breakpoint
|
|
BreakpointSiteSP bp_site_sp (m_thread.GetProcess()->GetBreakpointSiteList().FindByID (m_value));
|
|
if (bp_site_sp)
|
|
{
|
|
ExecutionContext exe_ctx (m_thread.GetStackFrameAtIndex(0));
|
|
StoppointCallbackContext context (event_ptr, exe_ctx, true);
|
|
m_should_stop = bp_site_sp->ShouldStop (&context);
|
|
}
|
|
else
|
|
{
|
|
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS));
|
|
|
|
if (log)
|
|
log->Printf ("Process::%s could not find breakpoint site id: %lld...", __FUNCTION__, m_value);
|
|
|
|
m_should_stop = true;
|
|
}
|
|
m_should_stop_is_valid = true;
|
|
}
|
|
return m_should_stop;
|
|
}
|
|
|
|
virtual void
|
|
PerformAction (Event *event_ptr)
|
|
{
|
|
if (!m_should_perform_action)
|
|
return;
|
|
m_should_perform_action = false;
|
|
|
|
LogSP log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_BREAKPOINTS);
|
|
|
|
BreakpointSiteSP bp_site_sp (m_thread.GetProcess()->GetBreakpointSiteList().FindByID (m_value));
|
|
|
|
if (bp_site_sp)
|
|
{
|
|
size_t num_owners = bp_site_sp->GetNumberOfOwners();
|
|
|
|
if (num_owners == 0)
|
|
{
|
|
m_should_stop = true;
|
|
}
|
|
else
|
|
{
|
|
// We go through each location, and test first its condition. If the condition says to stop,
|
|
// then we run the callback for that location. If that callback says to stop as well, then
|
|
// we set m_should_stop to true; we are going to stop.
|
|
// But we still want to give all the breakpoints whose conditions say we are going to stop a
|
|
// chance to run their callbacks.
|
|
// Of course if any callback restarts the target by putting "continue" in the callback, then
|
|
// we're going to restart, without running the rest of the callbacks. And in this case we will
|
|
// end up not stopping even if another location said we should stop. But that's better than not
|
|
// running all the callbacks.
|
|
|
|
m_should_stop = false;
|
|
|
|
ExecutionContext exe_ctx (m_thread.GetStackFrameAtIndex(0));
|
|
StoppointCallbackContext context (event_ptr, exe_ctx, false);
|
|
|
|
for (size_t j = 0; j < num_owners; j++)
|
|
{
|
|
lldb::BreakpointLocationSP bp_loc_sp = bp_site_sp->GetOwnerAtIndex(j);
|
|
|
|
// First run the condition for the breakpoint. If that says we should stop, then we'll run
|
|
// the callback for the breakpoint. If the callback says we shouldn't stop that will win.
|
|
|
|
bool condition_says_stop = true;
|
|
if (bp_loc_sp->GetConditionText() != NULL)
|
|
{
|
|
// We need to make sure the user sees any parse errors in their condition, so we'll hook the
|
|
// constructor errors up to the debugger's Async I/O.
|
|
|
|
ValueObjectSP result_valobj_sp;
|
|
|
|
ExecutionResults result_code;
|
|
ValueObjectSP result_value_sp;
|
|
const bool discard_on_error = true;
|
|
Error error;
|
|
result_code = ClangUserExpression::EvaluateWithError (exe_ctx,
|
|
eExecutionPolicyAlways,
|
|
lldb::eLanguageTypeUnknown,
|
|
ClangUserExpression::eResultTypeAny,
|
|
discard_on_error,
|
|
bp_loc_sp->GetConditionText(),
|
|
NULL,
|
|
result_value_sp,
|
|
error);
|
|
if (result_code == eExecutionCompleted)
|
|
{
|
|
if (result_value_sp)
|
|
{
|
|
Scalar scalar_value;
|
|
if (result_value_sp->ResolveValue (scalar_value))
|
|
{
|
|
if (scalar_value.ULongLong(1) == 0)
|
|
condition_says_stop = false;
|
|
else
|
|
condition_says_stop = true;
|
|
if (log)
|
|
log->Printf("Condition successfully evaluated, result is %s.\n",
|
|
m_should_stop ? "true" : "false");
|
|
}
|
|
else
|
|
{
|
|
condition_says_stop = true;
|
|
if (log)
|
|
log->Printf("Failed to get an integer result from the expression.");
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
Debugger &debugger = exe_ctx.GetTargetRef().GetDebugger();
|
|
StreamSP error_sp = debugger.GetAsyncErrorStream ();
|
|
error_sp->Printf ("Stopped due to an error evaluating condition of breakpoint ");
|
|
bp_loc_sp->GetDescription (error_sp.get(), eDescriptionLevelBrief);
|
|
error_sp->Printf (": \"%s\"",
|
|
bp_loc_sp->GetConditionText());
|
|
error_sp->EOL();
|
|
const char *err_str = error.AsCString("<Unknown Error>");
|
|
if (log)
|
|
log->Printf("Error evaluating condition: \"%s\"\n", err_str);
|
|
|
|
error_sp->PutCString (err_str);
|
|
error_sp->EOL();
|
|
error_sp->Flush();
|
|
// If the condition fails to be parsed or run, we should stop.
|
|
condition_says_stop = true;
|
|
}
|
|
}
|
|
|
|
// If this location's condition says we should aren't going to stop,
|
|
// then don't run the callback for this location.
|
|
if (!condition_says_stop)
|
|
continue;
|
|
|
|
bool callback_says_stop;
|
|
|
|
// FIXME: For now the callbacks have to run in async mode - the first time we restart we need
|
|
// to get out of there. So set it here.
|
|
// When we figure out how to nest breakpoint hits then this will change.
|
|
|
|
Debugger &debugger = m_thread.CalculateTarget()->GetDebugger();
|
|
bool old_async = debugger.GetAsyncExecution();
|
|
debugger.SetAsyncExecution (true);
|
|
|
|
callback_says_stop = bp_loc_sp->InvokeCallback (&context);
|
|
|
|
debugger.SetAsyncExecution (old_async);
|
|
|
|
if (callback_says_stop)
|
|
m_should_stop = true;
|
|
|
|
// Also make sure that the callback hasn't continued the target.
|
|
// If it did, when we'll set m_should_start to false and get out of here.
|
|
if (HasTargetRunSinceMe ())
|
|
{
|
|
m_should_stop = false;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
// We've figured out what this stop wants to do, so mark it as valid so we don't compute it again.
|
|
m_should_stop_is_valid = true;
|
|
|
|
}
|
|
else
|
|
{
|
|
m_should_stop = true;
|
|
m_should_stop_is_valid = true;
|
|
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS));
|
|
|
|
if (log)
|
|
log->Printf ("Process::%s could not find breakpoint site id: %lld...", __FUNCTION__, m_value);
|
|
}
|
|
if (log)
|
|
log->Printf ("Process::%s returning from action with m_should_stop: %d.", __FUNCTION__, m_should_stop);
|
|
}
|
|
|
|
virtual bool
|
|
ShouldNotify (Event *event_ptr)
|
|
{
|
|
BreakpointSiteSP bp_site_sp (m_thread.GetProcess()->GetBreakpointSiteList().FindByID (m_value));
|
|
if (bp_site_sp)
|
|
{
|
|
bool all_internal = true;
|
|
|
|
for (uint32_t i = 0; i < bp_site_sp->GetNumberOfOwners(); i++)
|
|
{
|
|
if (!bp_site_sp->GetOwnerAtIndex(i)->GetBreakpoint().IsInternal())
|
|
{
|
|
all_internal = false;
|
|
break;
|
|
}
|
|
}
|
|
return all_internal == false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
virtual const char *
|
|
GetDescription ()
|
|
{
|
|
if (m_description.empty())
|
|
{
|
|
BreakpointSiteSP bp_site_sp (m_thread.GetProcess()->GetBreakpointSiteList().FindByID (m_value));
|
|
if (bp_site_sp)
|
|
{
|
|
StreamString strm;
|
|
strm.Printf("breakpoint ");
|
|
bp_site_sp->GetDescription(&strm, eDescriptionLevelBrief);
|
|
m_description.swap (strm.GetString());
|
|
}
|
|
else
|
|
{
|
|
StreamString strm;
|
|
if (m_address == LLDB_INVALID_ADDRESS)
|
|
strm.Printf("breakpoint site %lli which has been deleted - unknown address", m_value);
|
|
else
|
|
strm.Printf("breakpoint site %lli which has been deleted - was at 0x%llx", m_value, m_address);
|
|
m_description.swap (strm.GetString());
|
|
}
|
|
}
|
|
return m_description.c_str();
|
|
}
|
|
|
|
private:
|
|
std::string m_description;
|
|
bool m_should_stop;
|
|
bool m_should_stop_is_valid;
|
|
bool m_should_perform_action; // Since we are trying to preserve the "state" of the system even if we run functions
|
|
// etc. behind the users backs, we need to make sure we only REALLY perform the action once.
|
|
lldb::addr_t m_address; // We use this to capture the breakpoint site address when we create the StopInfo,
|
|
// in case somebody deletes it between the time the StopInfo is made and the
|
|
// description is asked for.
|
|
};
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
// StopInfoWatchpoint
|
|
//----------------------------------------------------------------------
|
|
|
|
class StopInfoWatchpoint : public StopInfo
|
|
{
|
|
public:
|
|
|
|
StopInfoWatchpoint (Thread &thread, break_id_t watch_id) :
|
|
StopInfo(thread, watch_id),
|
|
m_description(),
|
|
m_should_stop(false),
|
|
m_should_stop_is_valid(false)
|
|
{
|
|
}
|
|
|
|
virtual ~StopInfoWatchpoint ()
|
|
{
|
|
}
|
|
|
|
virtual StopReason
|
|
GetStopReason () const
|
|
{
|
|
return eStopReasonWatchpoint;
|
|
}
|
|
|
|
virtual bool
|
|
ShouldStop (Event *event_ptr)
|
|
{
|
|
// ShouldStop() method is idempotent and should not affect hit count.
|
|
// See Process::RunPrivateStateThread()->Process()->HandlePrivateEvent()
|
|
// -->Process()::ShouldBroadcastEvent()->ThreadList::ShouldStop()->
|
|
// Thread::ShouldStop()->ThreadPlanBase::ShouldStop()->
|
|
// StopInfoWatchpoint::ShouldStop() and
|
|
// Event::DoOnRemoval()->Process::ProcessEventData::DoOnRemoval()->
|
|
// StopInfoWatchpoint::PerformAction().
|
|
if (m_should_stop_is_valid)
|
|
return m_should_stop;
|
|
|
|
WatchpointSP wp_sp =
|
|
m_thread.CalculateTarget()->GetWatchpointList().FindByID(GetValue());
|
|
if (wp_sp)
|
|
{
|
|
// Check if we should stop at a watchpoint.
|
|
ExecutionContext exe_ctx (m_thread.GetStackFrameAtIndex(0));
|
|
StoppointCallbackContext context (event_ptr, exe_ctx, true);
|
|
m_should_stop = wp_sp->ShouldStop (&context);
|
|
}
|
|
else
|
|
{
|
|
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS));
|
|
|
|
if (log)
|
|
log->Printf ("Process::%s could not find watchpoint location id: %lld...",
|
|
__FUNCTION__, GetValue());
|
|
|
|
m_should_stop = true;
|
|
}
|
|
m_should_stop_is_valid = true;
|
|
return m_should_stop;
|
|
}
|
|
|
|
// Perform any action that is associated with this stop. This is done as the
|
|
// Event is removed from the event queue.
|
|
virtual void
|
|
PerformAction (Event *event_ptr)
|
|
{
|
|
LogSP log = lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_BREAKPOINTS);
|
|
// We're going to calculate if we should stop or not in some way during the course of
|
|
// this code. Also by default we're going to stop, so set that here.
|
|
m_should_stop = true;
|
|
|
|
WatchpointSP wp_sp =
|
|
m_thread.CalculateTarget()->GetWatchpointList().FindByID(GetValue());
|
|
if (wp_sp)
|
|
{
|
|
ExecutionContext exe_ctx (m_thread.GetStackFrameAtIndex(0));
|
|
StoppointCallbackContext context (event_ptr, exe_ctx, false);
|
|
bool stop_requested = wp_sp->InvokeCallback (&context);
|
|
// Also make sure that the callback hasn't continued the target.
|
|
// If it did, when we'll set m_should_start to false and get out of here.
|
|
if (HasTargetRunSinceMe ())
|
|
m_should_stop = false;
|
|
|
|
if (m_should_stop && !stop_requested)
|
|
{
|
|
// We have been vetoed.
|
|
m_should_stop = false;
|
|
}
|
|
|
|
if (m_should_stop && wp_sp->GetConditionText() != NULL)
|
|
{
|
|
// We need to make sure the user sees any parse errors in their condition, so we'll hook the
|
|
// constructor errors up to the debugger's Async I/O.
|
|
ExecutionResults result_code;
|
|
ValueObjectSP result_value_sp;
|
|
const bool discard_on_error = true;
|
|
Error error;
|
|
result_code = ClangUserExpression::EvaluateWithError (exe_ctx,
|
|
eExecutionPolicyAlways,
|
|
lldb::eLanguageTypeUnknown,
|
|
ClangUserExpression::eResultTypeAny,
|
|
discard_on_error,
|
|
wp_sp->GetConditionText(),
|
|
NULL,
|
|
result_value_sp,
|
|
error);
|
|
if (result_code == eExecutionCompleted)
|
|
{
|
|
if (result_value_sp)
|
|
{
|
|
Scalar scalar_value;
|
|
if (result_value_sp->ResolveValue (scalar_value))
|
|
{
|
|
if (scalar_value.ULongLong(1) == 0)
|
|
{
|
|
// We have been vetoed. This takes precedence over querying
|
|
// the watchpoint whether it should stop (aka ignore count and
|
|
// friends). See also StopInfoWatchpoint::ShouldStop() as well
|
|
// as Process::ProcessEventData::DoOnRemoval().
|
|
m_should_stop = false;
|
|
}
|
|
else
|
|
m_should_stop = true;
|
|
if (log)
|
|
log->Printf("Condition successfully evaluated, result is %s.\n",
|
|
m_should_stop ? "true" : "false");
|
|
}
|
|
else
|
|
{
|
|
m_should_stop = true;
|
|
if (log)
|
|
log->Printf("Failed to get an integer result from the expression.");
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
Debugger &debugger = exe_ctx.GetTargetRef().GetDebugger();
|
|
StreamSP error_sp = debugger.GetAsyncErrorStream ();
|
|
error_sp->Printf ("Stopped due to an error evaluating condition of watchpoint ");
|
|
wp_sp->GetDescription (error_sp.get(), eDescriptionLevelBrief);
|
|
error_sp->Printf (": \"%s\"",
|
|
wp_sp->GetConditionText());
|
|
error_sp->EOL();
|
|
const char *err_str = error.AsCString("<Unknown Error>");
|
|
if (log)
|
|
log->Printf("Error evaluating condition: \"%s\"\n", err_str);
|
|
|
|
error_sp->PutCString (err_str);
|
|
error_sp->EOL();
|
|
error_sp->Flush();
|
|
// If the condition fails to be parsed or run, we should stop.
|
|
m_should_stop = true;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
LogSP log(lldb_private::GetLogIfAllCategoriesSet (LIBLLDB_LOG_PROCESS));
|
|
|
|
if (log)
|
|
log->Printf ("Process::%s could not find watchpoint id: %lld...", __FUNCTION__, m_value);
|
|
}
|
|
if (log)
|
|
log->Printf ("Process::%s returning from action with m_should_stop: %d.", __FUNCTION__, m_should_stop);
|
|
}
|
|
|
|
virtual const char *
|
|
GetDescription ()
|
|
{
|
|
if (m_description.empty())
|
|
{
|
|
StreamString strm;
|
|
strm.Printf("watchpoint %lli", m_value);
|
|
m_description.swap (strm.GetString());
|
|
}
|
|
return m_description.c_str();
|
|
}
|
|
|
|
private:
|
|
std::string m_description;
|
|
bool m_should_stop;
|
|
bool m_should_stop_is_valid;
|
|
};
|
|
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
// StopInfoUnixSignal
|
|
//----------------------------------------------------------------------
|
|
|
|
class StopInfoUnixSignal : public StopInfo
|
|
{
|
|
public:
|
|
|
|
StopInfoUnixSignal (Thread &thread, int signo) :
|
|
StopInfo (thread, signo)
|
|
{
|
|
}
|
|
|
|
virtual ~StopInfoUnixSignal ()
|
|
{
|
|
}
|
|
|
|
|
|
virtual StopReason
|
|
GetStopReason () const
|
|
{
|
|
return eStopReasonSignal;
|
|
}
|
|
|
|
virtual bool
|
|
ShouldStop (Event *event_ptr)
|
|
{
|
|
return m_thread.GetProcess()->GetUnixSignals().GetShouldStop (m_value);
|
|
}
|
|
|
|
|
|
// If should stop returns false, check if we should notify of this event
|
|
virtual bool
|
|
ShouldNotify (Event *event_ptr)
|
|
{
|
|
return m_thread.GetProcess()->GetUnixSignals().GetShouldNotify (m_value);
|
|
}
|
|
|
|
|
|
virtual void
|
|
WillResume (lldb::StateType resume_state)
|
|
{
|
|
if (m_thread.GetProcess()->GetUnixSignals().GetShouldSuppress(m_value) == false)
|
|
m_thread.SetResumeSignal(m_value);
|
|
}
|
|
|
|
virtual const char *
|
|
GetDescription ()
|
|
{
|
|
if (m_description.empty())
|
|
{
|
|
StreamString strm;
|
|
const char *signal_name = m_thread.GetProcess()->GetUnixSignals().GetSignalAsCString (m_value);
|
|
if (signal_name)
|
|
strm.Printf("signal %s", signal_name);
|
|
else
|
|
strm.Printf("signal %lli", m_value);
|
|
m_description.swap (strm.GetString());
|
|
}
|
|
return m_description.c_str();
|
|
}
|
|
};
|
|
|
|
//----------------------------------------------------------------------
|
|
// StopInfoTrace
|
|
//----------------------------------------------------------------------
|
|
|
|
class StopInfoTrace : public StopInfo
|
|
{
|
|
public:
|
|
|
|
StopInfoTrace (Thread &thread) :
|
|
StopInfo (thread, LLDB_INVALID_UID)
|
|
{
|
|
}
|
|
|
|
virtual ~StopInfoTrace ()
|
|
{
|
|
}
|
|
|
|
virtual StopReason
|
|
GetStopReason () const
|
|
{
|
|
return eStopReasonTrace;
|
|
}
|
|
|
|
virtual const char *
|
|
GetDescription ()
|
|
{
|
|
if (m_description.empty())
|
|
return "trace";
|
|
else
|
|
return m_description.c_str();
|
|
}
|
|
};
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
// StopInfoException
|
|
//----------------------------------------------------------------------
|
|
|
|
class StopInfoException : public StopInfo
|
|
{
|
|
public:
|
|
|
|
StopInfoException (Thread &thread, const char *description) :
|
|
StopInfo (thread, LLDB_INVALID_UID)
|
|
{
|
|
if (description)
|
|
SetDescription (description);
|
|
}
|
|
|
|
virtual
|
|
~StopInfoException ()
|
|
{
|
|
}
|
|
|
|
virtual StopReason
|
|
GetStopReason () const
|
|
{
|
|
return eStopReasonException;
|
|
}
|
|
|
|
virtual const char *
|
|
GetDescription ()
|
|
{
|
|
if (m_description.empty())
|
|
return "exception";
|
|
else
|
|
return m_description.c_str();
|
|
}
|
|
};
|
|
|
|
|
|
//----------------------------------------------------------------------
|
|
// StopInfoThreadPlan
|
|
//----------------------------------------------------------------------
|
|
|
|
class StopInfoThreadPlan : public StopInfo
|
|
{
|
|
public:
|
|
|
|
StopInfoThreadPlan (ThreadPlanSP &plan_sp, ValueObjectSP &return_valobj_sp) :
|
|
StopInfo (plan_sp->GetThread(), LLDB_INVALID_UID),
|
|
m_plan_sp (plan_sp),
|
|
m_return_valobj_sp (return_valobj_sp)
|
|
{
|
|
}
|
|
|
|
virtual ~StopInfoThreadPlan ()
|
|
{
|
|
}
|
|
|
|
virtual StopReason
|
|
GetStopReason () const
|
|
{
|
|
return eStopReasonPlanComplete;
|
|
}
|
|
|
|
virtual const char *
|
|
GetDescription ()
|
|
{
|
|
if (m_description.empty())
|
|
{
|
|
StreamString strm;
|
|
m_plan_sp->GetDescription (&strm, eDescriptionLevelBrief);
|
|
m_description.swap (strm.GetString());
|
|
}
|
|
return m_description.c_str();
|
|
}
|
|
|
|
ValueObjectSP
|
|
GetReturnValueObject()
|
|
{
|
|
return m_return_valobj_sp;
|
|
}
|
|
|
|
private:
|
|
ThreadPlanSP m_plan_sp;
|
|
ValueObjectSP m_return_valobj_sp;
|
|
};
|
|
} // namespace lldb_private
|
|
|
|
StopInfoSP
|
|
StopInfo::CreateStopReasonWithBreakpointSiteID (Thread &thread, break_id_t break_id)
|
|
{
|
|
return StopInfoSP (new StopInfoBreakpoint (thread, break_id));
|
|
}
|
|
|
|
StopInfoSP
|
|
StopInfo::CreateStopReasonWithBreakpointSiteID (Thread &thread, break_id_t break_id, bool should_stop)
|
|
{
|
|
return StopInfoSP (new StopInfoBreakpoint (thread, break_id, should_stop));
|
|
}
|
|
|
|
StopInfoSP
|
|
StopInfo::CreateStopReasonWithWatchpointID (Thread &thread, break_id_t watch_id)
|
|
{
|
|
return StopInfoSP (new StopInfoWatchpoint (thread, watch_id));
|
|
}
|
|
|
|
StopInfoSP
|
|
StopInfo::CreateStopReasonWithSignal (Thread &thread, int signo)
|
|
{
|
|
return StopInfoSP (new StopInfoUnixSignal (thread, signo));
|
|
}
|
|
|
|
StopInfoSP
|
|
StopInfo::CreateStopReasonToTrace (Thread &thread)
|
|
{
|
|
return StopInfoSP (new StopInfoTrace (thread));
|
|
}
|
|
|
|
StopInfoSP
|
|
StopInfo::CreateStopReasonWithPlan (ThreadPlanSP &plan_sp, ValueObjectSP return_valobj_sp)
|
|
{
|
|
return StopInfoSP (new StopInfoThreadPlan (plan_sp, return_valobj_sp));
|
|
}
|
|
|
|
StopInfoSP
|
|
StopInfo::CreateStopReasonWithException (Thread &thread, const char *description)
|
|
{
|
|
return StopInfoSP (new StopInfoException (thread, description));
|
|
}
|
|
|
|
ValueObjectSP
|
|
StopInfo::GetReturnValueObject(StopInfoSP &stop_info_sp)
|
|
{
|
|
if (stop_info_sp && stop_info_sp->GetStopReason() == eStopReasonPlanComplete)
|
|
{
|
|
StopInfoThreadPlan *plan_stop_info = static_cast<StopInfoThreadPlan *>(stop_info_sp.get());
|
|
return plan_stop_info->GetReturnValueObject();
|
|
}
|
|
else
|
|
return ValueObjectSP();
|
|
}
|