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