2020-08-21 12:27:15 +03:00
										 
									 
								 
							 | 
							
								
							 | 
							
								
							 | 
							
							
								/*
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								 * Copyright (c) 2020, Itamar S. <itamar8910@gmail.com>
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								 *
							 | 
						
					
						
							
								
									
										
										
										
											2021-04-22 01:24:48 -07:00
										 
									 
								 
							 | 
							
								
									
										
									
								
							 | 
							
								
							 | 
							
							
								 * SPDX-License-Identifier: BSD-2-Clause
							 | 
						
					
						
							
								
									
										
										
										
											2020-08-21 12:27:15 +03:00
										 
									 
								 
							 | 
							
								
							 | 
							
								
							 | 
							
							
								 */
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								#include "StackFrameUtils.h"
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								
							 | 
						
					
						
							
								
									
										
										
										
											2020-08-25 04:33:07 +01:00
										 
									 
								 
							 | 
							
								
									
										
									
								
							 | 
							
								
							 | 
							
							
								namespace Debug::StackFrameUtils {
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								
							 | 
						
					
						
							
								
									
										
										
										
											2021-11-19 16:13:07 +02:00
										 
									 
								 
							 | 
							
								
									
										
									
								
							 | 
							
								
							 | 
							
							
								Optional<StackFrameInfo> get_info(ProcessInspector const& inspector, FlatPtr current_ebp)
							 | 
						
					
						
							
								
									
										
										
										
											2020-08-21 12:27:15 +03:00
										 
									 
								 
							 | 
							
								
							 | 
							
								
							 | 
							
							
								{
							 | 
						
					
						
							
								
									
										
										
										
											2022-01-27 04:46:27 +03:30
										 
									 
								 
							 | 
							
								
									
										
									
								
							 | 
							
								
							 | 
							
							
								    auto return_address = inspector.peek(current_ebp + sizeof(FlatPtr));
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								    auto next_ebp = inspector.peek(current_ebp);
							 | 
						
					
						
							
								
									
										
										
										
											2020-08-21 12:27:15 +03:00
										 
									 
								 
							 | 
							
								
							 | 
							
								
							 | 
							
							
								    if (!return_address.has_value() || !next_ebp.has_value())
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								        return {};
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								    StackFrameInfo info = { return_address.value(), next_ebp.value() };
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								    return info;
							 | 
						
					
						
							| 
								
							 | 
							
								
							 | 
							
								
							 | 
							
							
								}
							 | 
						
					
						
							
								
									
										
										
										
											2020-08-25 04:33:07 +01:00
										 
									 
								 
							 | 
							
								
									
										
									
								
							 | 
							
								
							 | 
							
							
								
							 | 
						
					
						
							
								
									
										
										
										
											2020-08-21 12:27:15 +03:00
										 
									 
								 
							 | 
							
								
							 | 
							
								
							 | 
							
							
								}
							 |