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| //===-- ThreadPlanCallUserExpression.cpp -------------------------*- C++-*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "lldb/Target/ThreadPlanCallUserExpression.h"
#include "lldb/Breakpoint/Breakpoint.h"
#include "lldb/Breakpoint/BreakpointLocation.h"
#include "lldb/Core/Address.h"
#include "lldb/Expression/DiagnosticManager.h"
#include "lldb/Expression/DynamicCheckerFunctions.h"
#include "lldb/Expression/UserExpression.h"
#include "lldb/Host/HostInfo.h"
#include "lldb/Target/LanguageRuntime.h"
#include "lldb/Target/Process.h"
#include "lldb/Target/RegisterContext.h"
#include "lldb/Target/StopInfo.h"
#include "lldb/Target/Target.h"
#include "lldb/Target/Thread.h"
#include "lldb/Target/ThreadPlanRunToAddress.h"
#include "lldb/Utility/Log.h"
#include "lldb/Utility/Stream.h"
using namespace lldb;
using namespace lldb_private;
// ThreadPlanCallUserExpression: Plan to call a single function
ThreadPlanCallUserExpression::ThreadPlanCallUserExpression(
Thread &thread, Address &function, llvm::ArrayRef<lldb::addr_t> args,
const EvaluateExpressionOptions &options,
lldb::UserExpressionSP &user_expression_sp)
: ThreadPlanCallFunction(thread, function, CompilerType(), args, options),
m_user_expression_sp(user_expression_sp) {
// User expressions are generally "User generated" so we should set them up
// to stop when done.
SetIsMasterPlan(true);
SetOkayToDiscard(false);
}
ThreadPlanCallUserExpression::~ThreadPlanCallUserExpression() {}
void ThreadPlanCallUserExpression::GetDescription(
Stream *s, lldb::DescriptionLevel level) {
if (level == eDescriptionLevelBrief)
s->Printf("User Expression thread plan");
else
ThreadPlanCallFunction::GetDescription(s, level);
}
void ThreadPlanCallUserExpression::DidPush() {
ThreadPlanCallFunction::DidPush();
if (m_user_expression_sp)
m_user_expression_sp->WillStartExecuting();
}
void ThreadPlanCallUserExpression::WillPop() {
ThreadPlanCallFunction::WillPop();
if (m_user_expression_sp)
m_user_expression_sp.reset();
}
bool ThreadPlanCallUserExpression::MischiefManaged() {
Log *log(lldb_private::GetLogIfAllCategoriesSet(LIBLLDB_LOG_STEP));
if (IsPlanComplete()) {
LLDB_LOGF(log, "ThreadPlanCallFunction(%p): Completed call function plan.",
static_cast<void *>(this));
if (m_manage_materialization && PlanSucceeded() && m_user_expression_sp) {
lldb::addr_t function_stack_top;
lldb::addr_t function_stack_bottom;
lldb::addr_t function_stack_pointer = GetFunctionStackPointer();
function_stack_bottom = function_stack_pointer - HostInfo::GetPageSize();
function_stack_top = function_stack_pointer;
DiagnosticManager diagnostics;
ExecutionContext exe_ctx(GetThread());
m_user_expression_sp->FinalizeJITExecution(
diagnostics, exe_ctx, m_result_var_sp, function_stack_bottom,
function_stack_top);
}
ThreadPlan::MischiefManaged();
return true;
} else {
return false;
}
}
StopInfoSP ThreadPlanCallUserExpression::GetRealStopInfo() {
StopInfoSP stop_info_sp = ThreadPlanCallFunction::GetRealStopInfo();
if (stop_info_sp) {
lldb::addr_t addr = GetStopAddress();
DynamicCheckerFunctions *checkers =
m_thread.GetProcess()->GetDynamicCheckers();
StreamString s;
if (checkers && checkers->DoCheckersExplainStop(addr, s))
stop_info_sp->SetDescription(s.GetData());
}
return stop_info_sp;
}
void ThreadPlanCallUserExpression::DoTakedown(bool success) {
ThreadPlanCallFunction::DoTakedown(success);
m_user_expression_sp->DidFinishExecuting();
}
|