124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//===-- DWARFDebugLine.cpp --------------------------------------*- C++ -*-===// 224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// The LLVM Compiler Infrastructure 424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// This file is distributed under the University of Illinois Open Source 624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// License. See LICENSE.TXT for details. 724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//===----------------------------------------------------------------------===// 924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 1024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner#include "DWARFDebugLine.h" 1124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 1224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//#define ENABLE_DEBUG_PRINTF // DO NOT LEAVE THIS DEFINED: DEBUG ONLY!!! 1324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner#include <assert.h> 1424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 1524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner#include "lldb/Core/FileSpecList.h" 1624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner#include "lldb/Core/Log.h" 17964deba8853eb794e59263322b59b09b43669618Greg Clayton#include "lldb/Core/Module.h" 1824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner#include "lldb/Core/Timer.h" 19df6dc88322f103b263092d752db4490e628a1cbdGreg Clayton#include "lldb/Host/Host.h" 2024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 2124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner#include "SymbolFileDWARF.h" 2224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner#include "LogChannelDWARF.h" 2324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 24c7bbd271fba425130f82dfa028d68c92282e4fdcGreg Claytonusing namespace lldb; 2524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerusing namespace lldb_private; 2624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerusing namespace std; 2724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 2824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 2924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Parse 3024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 3124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Parse all information in the debug_line_data into an internal 3224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// representation. 3324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 3424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid 3524943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::Parse(const DataExtractor& debug_line_data) 3624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 3724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_lineTableMap.clear(); 3836da2aa6dc5ad9994b638ed09eb81c44cc05540bGreg Clayton lldb::offset_t offset = 0; 3924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner LineTable::shared_ptr line_table_sp(new LineTable); 4024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner while (debug_line_data.ValidOffset(offset)) 4124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 4236da2aa6dc5ad9994b638ed09eb81c44cc05540bGreg Clayton const lldb::offset_t debug_line_offset = offset; 4324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 4424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (line_table_sp.get() == NULL) 4524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 4624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 4724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (ParseStatementTable(debug_line_data, &offset, line_table_sp.get())) 4824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 4924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Make sure we don't don't loop infinitely 5024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (offset <= debug_line_offset) 5124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 5224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner //DEBUG_PRINTF("m_lineTableMap[0x%8.8x] = line_table_sp\n", debug_line_offset); 5324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner m_lineTableMap[debug_line_offset] = line_table_sp; 5424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner line_table_sp.reset(new LineTable); 5524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 5624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 5724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner ++offset; // Try next byte in line table 5824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 5924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 6024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 6124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid 6224943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::ParseIfNeeded(const DataExtractor& debug_line_data) 6324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 6424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (m_lineTableMap.empty()) 6524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner Parse(debug_line_data); 6624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 6724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 6824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 6924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 7024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// DWARFDebugLine::GetLineTable 7124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 7224943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::LineTable::shared_ptr 7324943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::GetLineTable(const dw_offset_t offset) const 7424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 7524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner DWARFDebugLine::LineTable::shared_ptr line_table_shared_ptr; 7624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner LineTableConstIter pos = m_lineTableMap.find(offset); 7724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (pos != m_lineTableMap.end()) 7824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner line_table_shared_ptr = pos->second; 7924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return line_table_shared_ptr; 8024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 8124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 8224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 8324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 8424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// DumpStateToFile 8524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 8624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerstatic void 8724943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDumpStateToFile (dw_offset_t offset, const DWARFDebugLine::State& state, void* userData) 8824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 8924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner Log *log = (Log *)userData; 9024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (state.row == DWARFDebugLine::State::StartParsingLineTable) 9124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 9224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // If the row is zero we are being called with the prologue only 9324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.prologue->Dump (log); 9424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->PutCString ("Address Line Column File"); 9524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->PutCString ("------------------ ------ ------ ------"); 9624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 9724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else if (state.row == DWARFDebugLine::State::DoneParsingLineTable) 9824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 9924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Done parsing line table 10024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 10124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 10224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 1035f35a4be95aed0e5b2cb36f7d785bcbfc67284aeDaniel Malea log->Printf( "0x%16.16" PRIx64 " %6u %6u %6u%s\n", state.address, state.line, state.column, state.file, state.end_sequence ? " END" : ""); 10424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 10524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 10624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 10724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 10824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// DWARFDebugLine::DumpLineTableRows 10924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 11024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerbool 11124943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::DumpLineTableRows(Log *log, SymbolFileDWARF* dwarf2Data, dw_offset_t debug_line_offset) 11224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 11324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner const DataExtractor& debug_line_data = dwarf2Data->get_debug_line_data(); 11424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 11524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (debug_line_offset == DW_INVALID_OFFSET) 11624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 11724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Dump line table to a single file only 11824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner debug_line_offset = 0; 11924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner while (debug_line_data.ValidOffset(debug_line_offset)) 12024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner debug_line_offset = DumpStatementTable (log, debug_line_data, debug_line_offset); 12124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 12224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 12324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 12424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Dump line table to a single file only 12524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner DumpStatementTable (log, debug_line_data, debug_line_offset); 12624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 12724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return false; 12824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 12924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 13024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 13124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// DWARFDebugLine::DumpStatementTable 13224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 13324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerdw_offset_t 13424943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::DumpStatementTable(Log *log, const DataExtractor& debug_line_data, const dw_offset_t debug_line_offset) 13524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 13624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (debug_line_data.ValidOffset(debug_line_offset)) 13724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 13836da2aa6dc5ad9994b638ed09eb81c44cc05540bGreg Clayton lldb::offset_t offset = debug_line_offset; 13924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "----------------------------------------------------------------------\n" 14024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner "debug_line[0x%8.8x]\n" 14124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner "----------------------------------------------------------------------\n", debug_line_offset); 14224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 14324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (ParseStatementTable(debug_line_data, &offset, DumpStateToFile, log)) 14424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return offset; 14524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 14624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return debug_line_offset + 1; // Skip to next byte in .debug_line section 14724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 14824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 14924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return DW_INVALID_OFFSET; 15024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 15124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 15224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 15324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 15424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// DumpOpcodes 15524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 15624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerbool 15724943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::DumpOpcodes(Log *log, SymbolFileDWARF* dwarf2Data, dw_offset_t debug_line_offset, uint32_t dump_flags) 15824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 15924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner const DataExtractor& debug_line_data = dwarf2Data->get_debug_line_data(); 16024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 16124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (debug_line_data.GetByteSize() == 0) 16224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 16324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "< EMPTY >\n"); 16424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return false; 16524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 16624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 16724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (debug_line_offset == DW_INVALID_OFFSET) 16824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 16924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Dump line table to a single file only 17024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner debug_line_offset = 0; 17124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner while (debug_line_data.ValidOffset(debug_line_offset)) 17224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner debug_line_offset = DumpStatementOpcodes (log, debug_line_data, debug_line_offset, dump_flags); 17324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 17424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 17524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 17624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Dump line table to a single file only 17724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner DumpStatementOpcodes (log, debug_line_data, debug_line_offset, dump_flags); 17824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 17924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return false; 18024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 18124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 18224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 18324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// DumpStatementOpcodes 18424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 18524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerdw_offset_t 18624943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::DumpStatementOpcodes(Log *log, const DataExtractor& debug_line_data, const dw_offset_t debug_line_offset, uint32_t flags) 18724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 18836da2aa6dc5ad9994b638ed09eb81c44cc05540bGreg Clayton lldb::offset_t offset = debug_line_offset; 18924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (debug_line_data.ValidOffset(offset)) 19024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 19124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner Prologue prologue; 19224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 19324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (ParsePrologue(debug_line_data, &offset, &prologue)) 19424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 19524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->PutCString ("----------------------------------------------------------------------"); 19624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf ("debug_line[0x%8.8x]", debug_line_offset); 19724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->PutCString ("----------------------------------------------------------------------\n"); 19824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue.Dump (log); 19924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 20024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 20124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 20224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner offset = debug_line_offset; 20336da2aa6dc5ad9994b638ed09eb81c44cc05540bGreg Clayton log->Printf( "0x%8.8" PRIx64 ": skipping pad byte %2.2x", offset, debug_line_data.GetU8(&offset)); 20424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return offset; 20524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 20624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 20724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner Row row(prologue.default_is_stmt); 20824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner const dw_offset_t end_offset = debug_line_offset + prologue.total_length + sizeof(prologue.total_length); 20924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 21024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner assert(debug_line_data.ValidOffset(end_offset-1)); 21124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 21224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner while (offset < end_offset) 21324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 21424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner const uint32_t op_offset = offset; 21524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner uint8_t opcode = debug_line_data.GetU8(&offset); 21624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner switch (opcode) 21724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 21824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case 0: // Extended Opcodes always start with a zero opcode followed by 21924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { // a uleb128 length so you can skip ones you don't know about 22024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 22124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner dw_offset_t ext_offset = offset; 22224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner dw_uleb128_t len = debug_line_data.GetULEB128(&offset); 22324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner dw_offset_t arg_size = len - (offset - ext_offset); 22424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner uint8_t sub_opcode = debug_line_data.GetU8(&offset); 22524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (verbose) 22624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// log->Printf( "Extended: <%u> %2.2x ", len, sub_opcode); 22724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 22824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner switch (sub_opcode) 22924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 23024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNE_end_sequence : 23124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "0x%8.8x: DW_LNE_end_sequence", op_offset); 23224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row.Dump(log); 23324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row.Reset(prologue.default_is_stmt); 23424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 23524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 23624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNE_set_address : 23724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 23824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row.address = debug_line_data.GetMaxU64(&offset, arg_size); 2395f35a4be95aed0e5b2cb36f7d785bcbfc67284aeDaniel Malea log->Printf( "0x%8.8x: DW_LNE_set_address (0x%" PRIx64 ")", op_offset, row.address); 24024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 24124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 24224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 24324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNE_define_file: 24424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 24524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner FileNameEntry fileEntry; 24624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fileEntry.name = debug_line_data.GetCStr(&offset); 24724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fileEntry.dir_idx = debug_line_data.GetULEB128(&offset); 24824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fileEntry.mod_time = debug_line_data.GetULEB128(&offset); 24924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fileEntry.length = debug_line_data.GetULEB128(&offset); 25024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "0x%8.8x: DW_LNE_define_file('%s', dir=%i, mod_time=0x%8.8x, length=%i )", 25124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner op_offset, 25224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fileEntry.name.c_str(), 25324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fileEntry.dir_idx, 25424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fileEntry.mod_time, 25524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fileEntry.length); 25624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue.file_names.push_back(fileEntry); 25724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 25824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 25924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 26024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner default: 26124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "0x%8.8x: DW_LNE_??? (%2.2x) - Skipping unknown upcode", op_offset, opcode); 26224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Length doesn't include the zero opcode byte or the length itself, but 26324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // it does include the sub_opcode, so we have to adjust for that below 26424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner offset += arg_size; 26524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 26624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 26724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 26824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 26924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 27024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Standard Opcodes 27124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_copy: 27224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "0x%8.8x: DW_LNS_copy", op_offset); 27324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row.Dump (log); 27424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 27524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 27624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_advance_pc: 27724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 27824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner dw_uleb128_t addr_offset_n = debug_line_data.GetULEB128(&offset); 27924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner dw_uleb128_t addr_offset = addr_offset_n * prologue.min_inst_length; 2807e5fa7fc1f8efd24c078e063b2c4b5e13ba5be20Jason Molenda log->Printf( "0x%8.8x: DW_LNS_advance_pc (0x%x)", op_offset, addr_offset); 28124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row.address += addr_offset; 28224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 28324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 28424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 28524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_advance_line: 28624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 28724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner dw_sleb128_t line_offset = debug_line_data.GetSLEB128(&offset); 28824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "0x%8.8x: DW_LNS_advance_line (%i)", op_offset, line_offset); 28924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row.line += line_offset; 29024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 29124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 29224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 29324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_set_file: 29424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row.file = debug_line_data.GetULEB128(&offset); 29524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "0x%8.8x: DW_LNS_set_file (%u)", op_offset, row.file); 29624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 29724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 29824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_set_column: 29924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row.column = debug_line_data.GetULEB128(&offset); 30024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "0x%8.8x: DW_LNS_set_column (%u)", op_offset, row.column); 30124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 30224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 30324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_negate_stmt: 30424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row.is_stmt = !row.is_stmt; 30524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "0x%8.8x: DW_LNS_negate_stmt", op_offset); 30624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 30724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 30824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_set_basic_block: 30924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row.basic_block = true; 31024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "0x%8.8x: DW_LNS_set_basic_block", op_offset); 31124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 31224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 31324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_const_add_pc: 31424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 31524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner uint8_t adjust_opcode = 255 - prologue.opcode_base; 31624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner dw_addr_t addr_offset = (adjust_opcode / prologue.line_range) * prologue.min_inst_length; 3175f35a4be95aed0e5b2cb36f7d785bcbfc67284aeDaniel Malea log->Printf( "0x%8.8x: DW_LNS_const_add_pc (0x%8.8" PRIx64 ")", op_offset, addr_offset); 31824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row.address += addr_offset; 31924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 32024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 32124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 32224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_fixed_advance_pc: 32324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 32424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner uint16_t pc_offset = debug_line_data.GetU16(&offset); 32524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "0x%8.8x: DW_LNS_fixed_advance_pc (0x%4.4x)", op_offset, pc_offset); 32624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row.address += pc_offset; 32724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 32824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 32924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 33024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_set_prologue_end: 33124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row.prologue_end = true; 33224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "0x%8.8x: DW_LNS_set_prologue_end", op_offset); 33324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 33424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 33524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_set_epilogue_begin: 33624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row.epilogue_begin = true; 33724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "0x%8.8x: DW_LNS_set_epilogue_begin", op_offset); 33824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 33924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 34024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_set_isa: 34124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row.isa = debug_line_data.GetULEB128(&offset); 34224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "0x%8.8x: DW_LNS_set_isa (%u)", op_offset, row.isa); 34324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 34424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 34524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Special Opcodes 34624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner default: 34724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (opcode < prologue.opcode_base) 34824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 34924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // We have an opcode that this parser doesn't know about, skip 35024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // the number of ULEB128 numbers that is says to skip in the 35124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // prologue's standard_opcode_lengths array 35224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner uint8_t n = prologue.standard_opcode_lengths[opcode-1]; 35324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "0x%8.8x: Special : Unknown skipping %u ULEB128 values.", op_offset, n); 35424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner while (n > 0) 35524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 35624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner debug_line_data.GetULEB128(&offset); 35724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner --n; 35824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 35924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 36024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 36124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 36224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner uint8_t adjust_opcode = opcode - prologue.opcode_base; 36324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner dw_addr_t addr_offset = (adjust_opcode / prologue.line_range) * prologue.min_inst_length; 36424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner int32_t line_offset = prologue.line_base + (adjust_opcode % prologue.line_range); 3655f35a4be95aed0e5b2cb36f7d785bcbfc67284aeDaniel Malea log->Printf("0x%8.8x: address += 0x%" PRIx64 ", line += %i\n", op_offset, (uint64_t)addr_offset, line_offset); 36624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row.address += addr_offset; 36724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row.line += line_offset; 36824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row.Dump (log); 36924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 37024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 37124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 37224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 37324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return end_offset; 37424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 37524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return DW_INVALID_OFFSET; 37624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 37724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 37824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 37924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 38024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 38124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 38224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Parse 38324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 38424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Parse the entire line table contents calling callback each time a 38524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// new prologue is parsed and every time a new row is to be added to 38624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// the line table. 38724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 38824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid 38924943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::Parse(const DataExtractor& debug_line_data, DWARFDebugLine::State::Callback callback, void* userData) 39024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 39136da2aa6dc5ad9994b638ed09eb81c44cc05540bGreg Clayton lldb::offset_t offset = 0; 39224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (debug_line_data.ValidOffset(offset)) 39324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 39424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (!ParseStatementTable(debug_line_data, &offset, callback, userData)) 39524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner ++offset; // Skip to next byte in .debug_line section 39624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 39724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 39824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 39924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 40024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 40124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// DWARFDebugLine::ParsePrologue 40224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 40324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerbool 40436da2aa6dc5ad9994b638ed09eb81c44cc05540bGreg ClaytonDWARFDebugLine::ParsePrologue(const DataExtractor& debug_line_data, lldb::offset_t* offset_ptr, Prologue* prologue) 40524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 40636da2aa6dc5ad9994b638ed09eb81c44cc05540bGreg Clayton const lldb::offset_t prologue_offset = *offset_ptr; 40724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 40824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner //DEBUG_PRINTF("0x%8.8x: ParsePrologue()\n", *offset_ptr); 40924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 41024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue->Clear(); 41124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner uint32_t i; 41224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner const char * s; 41324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue->total_length = debug_line_data.GetU32(offset_ptr); 41424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue->version = debug_line_data.GetU16(offset_ptr); 41524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (prologue->version != 2) 41624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return false; 41724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 41824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue->prologue_length = debug_line_data.GetU32(offset_ptr); 41936da2aa6dc5ad9994b638ed09eb81c44cc05540bGreg Clayton const lldb::offset_t end_prologue_offset = prologue->prologue_length + *offset_ptr; 42024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue->min_inst_length = debug_line_data.GetU8(offset_ptr); 42124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue->default_is_stmt = debug_line_data.GetU8(offset_ptr); 42224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue->line_base = debug_line_data.GetU8(offset_ptr); 42324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue->line_range = debug_line_data.GetU8(offset_ptr); 42424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue->opcode_base = debug_line_data.GetU8(offset_ptr); 42524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 42624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue->standard_opcode_lengths.reserve(prologue->opcode_base-1); 42724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 42824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner for (i=1; i<prologue->opcode_base; ++i) 42924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 43024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner uint8_t op_len = debug_line_data.GetU8(offset_ptr); 43124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue->standard_opcode_lengths.push_back(op_len); 43224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 43324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 43424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner while (*offset_ptr < end_prologue_offset) 43524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 43624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner s = debug_line_data.GetCStr(offset_ptr); 43724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (s && s[0]) 43824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue->include_directories.push_back(s); 43924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 44024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 44124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 44224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 44324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner while (*offset_ptr < end_prologue_offset) 44424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 44524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner const char* name = debug_line_data.GetCStr( offset_ptr ); 44624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (name && name[0]) 44724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 44824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner FileNameEntry fileEntry; 44924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fileEntry.name = name; 45024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fileEntry.dir_idx = debug_line_data.GetULEB128( offset_ptr ); 45124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fileEntry.mod_time = debug_line_data.GetULEB128( offset_ptr ); 45224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fileEntry.length = debug_line_data.GetULEB128( offset_ptr ); 45324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue->file_names.push_back(fileEntry); 45424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 45524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 45624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 45724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 45824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 459914553fb90223c4294bf8cfc0ad49267a9d6f242Greg Clayton if (*offset_ptr != end_prologue_offset) 460914553fb90223c4294bf8cfc0ad49267a9d6f242Greg Clayton { 461df6dc88322f103b263092d752db4490e628a1cbdGreg Clayton Host::SystemLog (Host::eSystemLogWarning, 46236da2aa6dc5ad9994b638ed09eb81c44cc05540bGreg Clayton "warning: parsing line table prologue at 0x%8.8" PRIx64 " should have ended at 0x%8.8" PRIx64 " but it ended ad 0x%8.8" PRIx64 "\n", 46336da2aa6dc5ad9994b638ed09eb81c44cc05540bGreg Clayton prologue_offset, 464df6dc88322f103b263092d752db4490e628a1cbdGreg Clayton end_prologue_offset, 465df6dc88322f103b263092d752db4490e628a1cbdGreg Clayton *offset_ptr); 466914553fb90223c4294bf8cfc0ad49267a9d6f242Greg Clayton } 46724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return end_prologue_offset; 46824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 46924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 47024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerbool 471964deba8853eb794e59263322b59b09b43669618Greg ClaytonDWARFDebugLine::ParseSupportFiles (const lldb::ModuleSP &module_sp, 472964deba8853eb794e59263322b59b09b43669618Greg Clayton const DataExtractor& debug_line_data, 473964deba8853eb794e59263322b59b09b43669618Greg Clayton const char *cu_comp_dir, 474964deba8853eb794e59263322b59b09b43669618Greg Clayton dw_offset_t stmt_list, 475964deba8853eb794e59263322b59b09b43669618Greg Clayton FileSpecList &support_files) 47624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 47736da2aa6dc5ad9994b638ed09eb81c44cc05540bGreg Clayton lldb::offset_t offset = stmt_list + 4; // Skip the total length 47824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner const char * s; 47924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner uint32_t version = debug_line_data.GetU16(&offset); 48024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (version != 2) 48124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return false; 48224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 48324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner const dw_offset_t end_prologue_offset = debug_line_data.GetU32(&offset) + offset; 48424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Skip instruction length, default is stmt, line base, line range and 48524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // opcode base, and all opcode lengths 48624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner offset += 4; 48724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner const uint8_t opcode_base = debug_line_data.GetU8(&offset); 48824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner offset += opcode_base - 1; 48924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner std::vector<std::string> include_directories; 49024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner include_directories.push_back(""); // Directory at index zero doesn't exist 49124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner while (offset < end_prologue_offset) 49224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 49324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner s = debug_line_data.GetCStr(&offset); 49424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (s && s[0]) 49524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner include_directories.push_back(s); 49624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 49724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 49824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 49924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner std::string fullpath; 5002418fddf2e200c827da5bc6c855f3d4971b2d867Greg Clayton std::string remapped_fullpath; 50124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner while (offset < end_prologue_offset) 50224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 50324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner const char* path = debug_line_data.GetCStr( &offset ); 50424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (path && path[0]) 50524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 50624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner uint32_t dir_idx = debug_line_data.GetULEB128( &offset ); 50724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner debug_line_data.Skip_LEB128(&offset); // Skip mod_time 50824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner debug_line_data.Skip_LEB128(&offset); // Skip length 50924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 51024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (path[0] == '/') 51124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 51224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // The path starts with a directory delimiter, so we are done. 5132418fddf2e200c827da5bc6c855f3d4971b2d867Greg Clayton if (module_sp->RemapSourceFile (path, fullpath)) 5142418fddf2e200c827da5bc6c855f3d4971b2d867Greg Clayton support_files.Append(FileSpec (fullpath.c_str(), false)); 5152418fddf2e200c827da5bc6c855f3d4971b2d867Greg Clayton else 5162418fddf2e200c827da5bc6c855f3d4971b2d867Greg Clayton support_files.Append(FileSpec (path, false)); 51724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 51824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 51924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 52024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (dir_idx > 0 && dir_idx < include_directories.size()) 52124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 52224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (cu_comp_dir && include_directories[dir_idx][0] != '/') 52324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 52424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fullpath = cu_comp_dir; 52524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 52624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (*fullpath.rbegin() != '/') 52724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fullpath += '/'; 52824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fullpath += include_directories[dir_idx]; 52924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 53024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 53124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 53224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fullpath = include_directories[dir_idx]; 53324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 53424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else if (cu_comp_dir && cu_comp_dir[0]) 53524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 53624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fullpath = cu_comp_dir; 53724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 53824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 53924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (!fullpath.empty()) 54024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 54124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (*fullpath.rbegin() != '/') 54224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fullpath += '/'; 54324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 54424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fullpath += path; 5452418fddf2e200c827da5bc6c855f3d4971b2d867Greg Clayton if (module_sp->RemapSourceFile (fullpath.c_str(), remapped_fullpath)) 5462418fddf2e200c827da5bc6c855f3d4971b2d867Greg Clayton support_files.Append(FileSpec (remapped_fullpath.c_str(), false)); 5472418fddf2e200c827da5bc6c855f3d4971b2d867Greg Clayton else 5482418fddf2e200c827da5bc6c855f3d4971b2d867Greg Clayton support_files.Append(FileSpec (fullpath.c_str(), false)); 54924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 550c4547c59f2e8390bdbf92484c851be06395b8e77Jim Ingham 55124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 55224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 55324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 554914553fb90223c4294bf8cfc0ad49267a9d6f242Greg Clayton if (offset != end_prologue_offset) 555914553fb90223c4294bf8cfc0ad49267a9d6f242Greg Clayton { 556df6dc88322f103b263092d752db4490e628a1cbdGreg Clayton Host::SystemLog (Host::eSystemLogError, 55736da2aa6dc5ad9994b638ed09eb81c44cc05540bGreg Clayton "warning: parsing line table prologue at 0x%8.8x should have ended at 0x%8.8x but it ended ad 0x%8.8" PRIx64 "\n", 558df6dc88322f103b263092d752db4490e628a1cbdGreg Clayton stmt_list, 559df6dc88322f103b263092d752db4490e628a1cbdGreg Clayton end_prologue_offset, 560df6dc88322f103b263092d752db4490e628a1cbdGreg Clayton offset); 561914553fb90223c4294bf8cfc0ad49267a9d6f242Greg Clayton } 56224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return end_prologue_offset; 56324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 56424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 56524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 56624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// ParseStatementTable 56724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 56824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Parse a single line table (prologue and all rows) and call the 56924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// callback function once for the prologue (row in state will be zero) 57024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// and each time a row is to be added to the line table. 57124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 57224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerbool 57324943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::ParseStatementTable 57424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner( 57524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner const DataExtractor& debug_line_data, 57636da2aa6dc5ad9994b638ed09eb81c44cc05540bGreg Clayton lldb::offset_t* offset_ptr, 57724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner DWARFDebugLine::State::Callback callback, 57824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner void* userData 57924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner) 58024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 581952e9dc874944fcdbbb224f3ec4fc2c859376f64Greg Clayton Log *log (LogChannelDWARF::GetLogIfAll(DWARF_LOG_DEBUG_LINE)); 58224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner Prologue::shared_ptr prologue(new Prologue()); 58324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 58424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 58524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner const dw_offset_t debug_line_offset = *offset_ptr; 58624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 58724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner Timer scoped_timer (__PRETTY_FUNCTION__, 58824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner "DWARFDebugLine::ParseStatementTable (.debug_line[0x%8.8x])", 58924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner debug_line_offset); 59024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 59124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (!ParsePrologue(debug_line_data, offset_ptr, prologue.get())) 59224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 59324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (log) 59424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Error ("failed to parse DWARF line table prologue"); 59524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Restore our offset and return false to indicate failure! 59624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner *offset_ptr = debug_line_offset; 59724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return false; 59824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 59924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 60024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (log) 601952e9dc874944fcdbbb224f3ec4fc2c859376f64Greg Clayton prologue->Dump (log); 60224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 60324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner const dw_offset_t end_offset = debug_line_offset + prologue->total_length + sizeof(prologue->total_length); 60424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 605952e9dc874944fcdbbb224f3ec4fc2c859376f64Greg Clayton State state(prologue, log, callback, userData); 60624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 60724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner while (*offset_ptr < end_offset) 60824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 60924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner //DEBUG_PRINTF("0x%8.8x: ", *offset_ptr); 61024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner uint8_t opcode = debug_line_data.GetU8(offset_ptr); 61124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 61224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (opcode == 0) 61324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 61424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Extended Opcodes always start with a zero opcode followed by 61524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // a uleb128 length so you can skip ones you don't know about 61636da2aa6dc5ad9994b638ed09eb81c44cc05540bGreg Clayton lldb::offset_t ext_offset = *offset_ptr; 61724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner dw_uleb128_t len = debug_line_data.GetULEB128(offset_ptr); 61824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner dw_offset_t arg_size = len - (*offset_ptr - ext_offset); 61924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 62024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner //DEBUG_PRINTF("Extended: <%2u> ", len); 62124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner uint8_t sub_opcode = debug_line_data.GetU8(offset_ptr); 62224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner switch (sub_opcode) 62324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 62424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNE_end_sequence: 62524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Set the end_sequence register of the state machine to true and 62624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // append a row to the matrix using the current values of the 62724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // state-machine registers. Then reset the registers to the initial 62824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // values specified above. Every statement program sequence must end 62924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // with a DW_LNE_end_sequence instruction which creates a row whose 63024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // address is that of the byte after the last target machine instruction 63124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // of the sequence. 63224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.end_sequence = true; 63324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.AppendRowToMatrix(*offset_ptr); 63424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.Reset(); 63524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 63624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 63724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNE_set_address: 63824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Takes a single relocatable address as an operand. The size of the 63924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // operand is the size appropriate to hold an address on the target 64024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // machine. Set the address register to the value given by the 64124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // relocatable address. All of the other statement program opcodes 64224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // that affect the address register add a delta to it. This instruction 64324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // stores a relocatable value into it instead. 64424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.address = debug_line_data.GetAddress(offset_ptr); 64524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 64624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 64724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNE_define_file: 64824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Takes 4 arguments. The first is a null terminated string containing 64924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // a source file name. The second is an unsigned LEB128 number representing 65024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // the directory index of the directory in which the file was found. The 65124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // third is an unsigned LEB128 number representing the time of last 65224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // modification of the file. The fourth is an unsigned LEB128 number 65324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // representing the length in bytes of the file. The time and length 65424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // fields may contain LEB128(0) if the information is not available. 65524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // 65624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // The directory index represents an entry in the include_directories 65724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // section of the statement program prologue. The index is LEB128(0) 65824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // if the file was found in the current directory of the compilation, 65924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // LEB128(1) if it was found in the first directory in the 66024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // include_directories section, and so on. The directory index is 66124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // ignored for file names that represent full path names. 66224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // 66324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // The files are numbered, starting at 1, in the order in which they 66424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // appear; the names in the prologue come before names defined by 66524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // the DW_LNE_define_file instruction. These numbers are used in the 66624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // the file register of the state machine. 66724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 66824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner FileNameEntry fileEntry; 66924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fileEntry.name = debug_line_data.GetCStr(offset_ptr); 67024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fileEntry.dir_idx = debug_line_data.GetULEB128(offset_ptr); 67124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fileEntry.mod_time = debug_line_data.GetULEB128(offset_ptr); 67224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fileEntry.length = debug_line_data.GetULEB128(offset_ptr); 67324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.prologue->file_names.push_back(fileEntry); 67424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 67524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 67624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 67724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner default: 67824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Length doesn't include the zero opcode byte or the length itself, but 67924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // it does include the sub_opcode, so we have to adjust for that below 68024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner (*offset_ptr) += arg_size; 68124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 68224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 68324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 68424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else if (opcode < prologue->opcode_base) 68524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 68624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner switch (opcode) 68724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 68824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Standard Opcodes 68924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_copy: 69024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Takes no arguments. Append a row to the matrix using the 69124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // current values of the state-machine registers. Then set 69224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // the basic_block register to false. 69324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.AppendRowToMatrix(*offset_ptr); 69424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 69524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 69624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_advance_pc: 69724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Takes a single unsigned LEB128 operand, multiplies it by the 69824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // min_inst_length field of the prologue, and adds the 69924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // result to the address register of the state machine. 70024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.address += debug_line_data.GetULEB128(offset_ptr) * prologue->min_inst_length; 70124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 70224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 70324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_advance_line: 70424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Takes a single signed LEB128 operand and adds that value to 70524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // the line register of the state machine. 70624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.line += debug_line_data.GetSLEB128(offset_ptr); 70724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 70824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 70924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_set_file: 71024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Takes a single unsigned LEB128 operand and stores it in the file 71124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // register of the state machine. 71224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.file = debug_line_data.GetULEB128(offset_ptr); 71324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 71424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 71524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_set_column: 71624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Takes a single unsigned LEB128 operand and stores it in the 71724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // column register of the state machine. 71824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.column = debug_line_data.GetULEB128(offset_ptr); 71924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 72024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 72124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_negate_stmt: 72224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Takes no arguments. Set the is_stmt register of the state 72324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // machine to the logical negation of its current value. 72424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.is_stmt = !state.is_stmt; 72524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 72624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 72724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_set_basic_block: 72824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Takes no arguments. Set the basic_block register of the 72924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // state machine to true 73024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.basic_block = true; 73124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 73224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 73324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_const_add_pc: 73424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Takes no arguments. Add to the address register of the state 73524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // machine the address increment value corresponding to special 73624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // opcode 255. The motivation for DW_LNS_const_add_pc is this: 73724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // when the statement program needs to advance the address by a 73824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // small amount, it can use a single special opcode, which occupies 73924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // a single byte. When it needs to advance the address by up to 74024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // twice the range of the last special opcode, it can use 74124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // DW_LNS_const_add_pc followed by a special opcode, for a total 74224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // of two bytes. Only if it needs to advance the address by more 74324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // than twice that range will it need to use both DW_LNS_advance_pc 74424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // and a special opcode, requiring three or more bytes. 74524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 74624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner uint8_t adjust_opcode = 255 - prologue->opcode_base; 74724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner dw_addr_t addr_offset = (adjust_opcode / prologue->line_range) * prologue->min_inst_length; 74824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.address += addr_offset; 74924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 75024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 75124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 75224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_fixed_advance_pc: 75324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Takes a single uhalf operand. Add to the address register of 75424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // the state machine the value of the (unencoded) operand. This 75524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // is the only extended opcode that takes an argument that is not 75624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // a variable length number. The motivation for DW_LNS_fixed_advance_pc 75724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // is this: existing assemblers cannot emit DW_LNS_advance_pc or 75824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // special opcodes because they cannot encode LEB128 numbers or 75924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // judge when the computation of a special opcode overflows and 76024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // requires the use of DW_LNS_advance_pc. Such assemblers, however, 76124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // can use DW_LNS_fixed_advance_pc instead, sacrificing compression. 76224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.address += debug_line_data.GetU16(offset_ptr); 76324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 76424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 76524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_set_prologue_end: 76624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Takes no arguments. Set the prologue_end register of the 76724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // state machine to true 76824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.prologue_end = true; 76924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 77024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 77124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_set_epilogue_begin: 77224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Takes no arguments. Set the basic_block register of the 77324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // state machine to true 77424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.epilogue_begin = true; 77524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 77624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 77724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner case DW_LNS_set_isa: 77824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Takes a single unsigned LEB128 operand and stores it in the 77924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // column register of the state machine. 78024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.isa = debug_line_data.GetULEB128(offset_ptr); 78124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 78224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 78324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner default: 78424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Handle any unknown standard opcodes here. We know the lengths 78524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // of such opcodes because they are specified in the prologue 78624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // as a multiple of LEB128 operands for each opcode. 78724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 78824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner uint8_t i; 78924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner assert (opcode - 1 < prologue->standard_opcode_lengths.size()); 79024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner const uint8_t opcode_length = prologue->standard_opcode_lengths[opcode - 1]; 79124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner for (i=0; i<opcode_length; ++i) 79224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner debug_line_data.Skip_LEB128(offset_ptr); 79324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 79424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner break; 79524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 79624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 79724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 79824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 79924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Special Opcodes 80024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 80124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // A special opcode value is chosen based on the amount that needs 80224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // to be added to the line and address registers. The maximum line 80324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // increment for a special opcode is the value of the line_base 80424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // field in the header, plus the value of the line_range field, 80524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // minus 1 (line base + line range - 1). If the desired line 80624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // increment is greater than the maximum line increment, a standard 807b6ea174785a93f6dc227d886eba3af72faa2cf98Jason Molenda // opcode must be used instead of a special opcode. The "address 808b6ea174785a93f6dc227d886eba3af72faa2cf98Jason Molenda // advance" is calculated by dividing the desired address increment 80924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // by the minimum_instruction_length field from the header. The 81024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // special opcode is then calculated using the following formula: 81124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // 81224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // opcode = (desired line increment - line_base) + (line_range * address advance) + opcode_base 81324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // 81424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // If the resulting opcode is greater than 255, a standard opcode 81524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // must be used instead. 81624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // 81724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // To decode a special opcode, subtract the opcode_base from the 81824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // opcode itself to give the adjusted opcode. The amount to 81924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // increment the address register is the result of the adjusted 82024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // opcode divided by the line_range multiplied by the 82124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // minimum_instruction_length field from the header. That is: 82224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // 8235d187e5495ee17f6763337a6ae28c2a7b07e4945Greg Clayton // address increment = (adjusted opcode / line_range) * minimum_instruction_length 82424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // 82524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // The amount to increment the line register is the line_base plus 82624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // the result of the adjusted opcode modulo the line_range. That is: 82724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // 82824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // line increment = line_base + (adjusted opcode % line_range) 82924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 83024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner uint8_t adjust_opcode = opcode - prologue->opcode_base; 83124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner dw_addr_t addr_offset = (adjust_opcode / prologue->line_range) * prologue->min_inst_length; 83224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner int32_t line_offset = prologue->line_base + (adjust_opcode % prologue->line_range); 83324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.line += line_offset; 83424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.address += addr_offset; 83524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.AppendRowToMatrix(*offset_ptr); 83624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 83724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 83824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 83924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state.Finalize( *offset_ptr ); 84024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 84124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return end_offset; 84224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 84324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 84424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 84524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 84624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// ParseStatementTableCallback 84724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 84824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerstatic void 84924943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerParseStatementTableCallback(dw_offset_t offset, const DWARFDebugLine::State& state, void* userData) 85024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 85124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner DWARFDebugLine::LineTable* line_table = (DWARFDebugLine::LineTable*)userData; 85224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (state.row == DWARFDebugLine::State::StartParsingLineTable) 85324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 85424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Just started parsing the line table, so lets keep a reference to 85524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // the prologue using the supplied shared pointer 85624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner line_table->prologue = state.prologue; 85724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 85824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else if (state.row == DWARFDebugLine::State::DoneParsingLineTable) 85924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 86024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Done parsing line table, nothing to do for the cleanup 86124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 86224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 86324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 86424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // We have a new row, lets append it 86524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner line_table->AppendRow(state); 86624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 86724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 86824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 86924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 87024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// ParseStatementTable 87124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 87224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Parse a line table at offset and populate the LineTable class with 87324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// the prologue and all rows. 87424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 87524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerbool 87636da2aa6dc5ad9994b638ed09eb81c44cc05540bGreg ClaytonDWARFDebugLine::ParseStatementTable(const DataExtractor& debug_line_data, lldb::offset_t *offset_ptr, LineTable* line_table) 87724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 87824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return ParseStatementTable(debug_line_data, offset_ptr, ParseStatementTableCallback, line_table); 87924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 88024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 88124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 88224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerinline bool 88324943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::Prologue::IsValid() const 88424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 88524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return SymbolFileDWARF::SupportedVersion(version); 88624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 88724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 88824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 88924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// DWARFDebugLine::Prologue::Dump 89024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 89124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid 89224943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::Prologue::Dump(Log *log) 89324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 89424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner uint32_t i; 89524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 89624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "Line table prologue:"); 89724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( " total_length: 0x%8.8x", total_length); 89824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( " version: %u", version); 89924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "prologue_length: 0x%8.8x", prologue_length); 90024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "min_inst_length: %u", min_inst_length); 90124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "default_is_stmt: %u", default_is_stmt); 90224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( " line_base: %i", line_base); 90324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( " line_range: %u", line_range); 90424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( " opcode_base: %u", opcode_base); 90524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 90624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner for (i=0; i<standard_opcode_lengths.size(); ++i) 90724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 90824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "standard_opcode_lengths[%s] = %u", DW_LNS_value_to_name(i+1), standard_opcode_lengths[i]); 90924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 91024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 91124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (!include_directories.empty()) 91224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 91324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner for (i=0; i<include_directories.size(); ++i) 91424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 91524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf( "include_directories[%3u] = '%s'", i+1, include_directories[i].c_str()); 91624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 91724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 91824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 91924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (!file_names.empty()) 92024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 92124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->PutCString (" Dir Mod Time File Len File Name"); 92224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->PutCString (" ---- ---------- ---------- ---------------------------"); 92324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner for (i=0; i<file_names.size(); ++i) 92424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 92524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner const FileNameEntry& fileEntry = file_names[i]; 92624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->Printf ("file_names[%3u] %4u 0x%8.8x 0x%8.8x %s", 92724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner i+1, 92824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fileEntry.dir_idx, 92924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fileEntry.mod_time, 93024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fileEntry.length, 93124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner fileEntry.name.c_str()); 93224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 93324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 93424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 93524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 93624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 93724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 93824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// DWARFDebugLine::ParsePrologue::Append 93924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 94024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Append the contents of the prologue to the binary stream buffer 94124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 94224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//void 94324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//DWARFDebugLine::Prologue::Append(BinaryStreamBuf& buff) const 94424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//{ 94524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// uint32_t i; 94624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 94724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// buff.Append32(total_length); 94824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// buff.Append16(version); 94924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// buff.Append32(prologue_length); 95024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// buff.Append8(min_inst_length); 95124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// buff.Append8(default_is_stmt); 95224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// buff.Append8(line_base); 95324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// buff.Append8(line_range); 95424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// buff.Append8(opcode_base); 95524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 95624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// for (i=0; i<standard_opcode_lengths.size(); ++i) 95724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// buff.Append8(standard_opcode_lengths[i]); 95824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 95924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// for (i=0; i<include_directories.size(); ++i) 96024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// buff.AppendCStr(include_directories[i].c_str()); 96124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// buff.Append8(0); // Terminate the include directory section with empty string 96224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 96324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// for (i=0; i<file_names.size(); ++i) 96424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 96524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// buff.AppendCStr(file_names[i].name.c_str()); 96624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// buff.Append32_as_ULEB128(file_names[i].dir_idx); 96724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// buff.Append32_as_ULEB128(file_names[i].mod_time); 96824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// buff.Append32_as_ULEB128(file_names[i].length); 96924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 97024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// buff.Append8(0); // Terminate the file names section with empty string 97124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//} 97224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 97324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 97424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerbool DWARFDebugLine::Prologue::GetFile(uint32_t file_idx, std::string& path, std::string& directory) const 97524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 97624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner uint32_t idx = file_idx - 1; // File indexes are 1 based... 97724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (idx < file_names.size()) 97824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 97924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner path = file_names[idx].name; 98024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner uint32_t dir_idx = file_names[idx].dir_idx - 1; 98124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (dir_idx < include_directories.size()) 98224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner directory = include_directories[dir_idx]; 98324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 98424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner directory.clear(); 98524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return true; 98624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 98724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return false; 98824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 98924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 99024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 99124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// DWARFDebugLine::LineTable::Dump 99224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 99324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid 99424943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::LineTable::Dump(Log *log) const 99524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 99624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (prologue.get()) 99724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue->Dump (log); 99824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 99924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (!rows.empty()) 100024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 100124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->PutCString ("Address Line Column File ISA Flags"); 100224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->PutCString ("------------------ ------ ------ ------ --- -------------"); 100324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner Row::const_iterator pos = rows.begin(); 100424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner Row::const_iterator end = rows.end(); 100524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner while (pos != end) 100624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 100724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner (*pos).Dump (log); 100824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner ++pos; 100924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 101024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 101124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 101224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 101324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 101424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid 101524943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::LineTable::AppendRow(const DWARFDebugLine::Row& state) 101624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 101724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner rows.push_back(state); 101824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 101924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 102024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 102124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 102224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 102324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Compare function for the binary search in DWARFDebugLine::LineTable::LookupAddress() 102424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 102524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerstatic bool FindMatchingAddress (const DWARFDebugLine::Row& row1, const DWARFDebugLine::Row& row2) 102624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 102724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return row1.address < row2.address; 102824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 102924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 103024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 103124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 103224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// DWARFDebugLine::LineTable::LookupAddress 103324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 103424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattneruint32_t 103524943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::LineTable::LookupAddress(dw_addr_t address, dw_addr_t cu_high_pc) const 103624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 1037178710cd4307f3d44dc76ebd70fc7daf7ebe17c5Greg Clayton uint32_t index = UINT32_MAX; 103824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (!rows.empty()) 103924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 104024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Use the lower_bound algorithm to perform a binary search since we know 104124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // that our line table data is ordered by address. 104224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner DWARFDebugLine::Row row; 104324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row.address = address; 104424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner Row::const_iterator begin_pos = rows.begin(); 104524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner Row::const_iterator end_pos = rows.end(); 104624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner Row::const_iterator pos = lower_bound(begin_pos, end_pos, row, FindMatchingAddress); 104724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (pos == end_pos) 104824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 104924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (address < cu_high_pc) 105024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return rows.size()-1; 105124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 105224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 105324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 105424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Rely on fact that we are using a std::vector and we can do 105524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // pointer arithmetic to find the row index (which will be one less 105624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // that what we found since it will find the first position after 105724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // the current address) since std::vector iterators are just 105824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // pointers to the container type. 105924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner index = pos - begin_pos; 106024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (pos->address > address) 106124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 106224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (index > 0) 106324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner --index; 106424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 1065178710cd4307f3d44dc76ebd70fc7daf7ebe17c5Greg Clayton index = UINT32_MAX; 106624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 106724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 106824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 106924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return index; // Failed to find address 107024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 107124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 107224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 107324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 107424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// DWARFDebugLine::Row::Row 107524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 107624943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::Row::Row(bool default_is_stmt) : 107724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner address(0), 107824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner line(1), 107924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner column(0), 108024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner file(1), 108124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner is_stmt(default_is_stmt), 108224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner basic_block(false), 108324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner end_sequence(false), 108424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue_end(false), 108524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner epilogue_begin(false), 108624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner isa(0) 108724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 108824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 108924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 109024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 109124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Called after a row is appended to the matrix 109224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 109324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid 109424943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::Row::PostAppend() 109524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 109624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner basic_block = false; 109724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue_end = false; 109824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner epilogue_begin = false; 109924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 110024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 110124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 110224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 110324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// DWARFDebugLine::Row::Reset 110424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 110524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid 110624943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::Row::Reset(bool default_is_stmt) 110724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 110824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner address = 0; 110924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner line = 1; 111024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner column = 0; 111124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner file = 1; 111224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner is_stmt = default_is_stmt; 111324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner basic_block = false; 111424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner end_sequence = false; 111524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue_end = false; 111624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner epilogue_begin = false; 111724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner isa = 0; 111824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 111924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 112024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// DWARFDebugLine::Row::Dump 112124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 112224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid 112324943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::Row::Dump(Log *log) const 112424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 11255f35a4be95aed0e5b2cb36f7d785bcbfc67284aeDaniel Malea log->Printf( "0x%16.16" PRIx64 " %6u %6u %6u %3u %s%s%s%s%s", 112624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner address, 112724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner line, 112824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner column, 112924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner file, 113024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner isa, 113124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner is_stmt ? " is_stmt" : "", 113224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner basic_block ? " basic_block" : "", 113324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue_end ? " prologue_end" : "", 113424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner epilogue_begin ? " epilogue_begin" : "", 113524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner end_sequence ? " end_sequence" : ""); 113624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 113724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 113824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 113924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Compare function LineTable structures 114024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 114124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnerstatic bool AddressLessThan (const DWARFDebugLine::Row& a, const DWARFDebugLine::Row& b) 114224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 114324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner return a.address < b.address; 114424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 114524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 114624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 114724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 114824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Insert a row at the correct address if the addresses can be out of 114924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// order which can only happen when we are linking a line table that 115024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// may have had it's contents rearranged. 115124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid 115224943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::Row::Insert(Row::collection& state_coll, const Row& state) 115324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 115424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // If we don't have anything yet, or if the address of the last state in our 115524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // line table is less than the current one, just append the current state 115624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (state_coll.empty() || AddressLessThan(state_coll.back(), state)) 115724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 115824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state_coll.push_back(state); 115924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 116024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 116124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 116224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Do a binary search for the correct entry 116324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner pair<Row::iterator, Row::iterator> range(equal_range(state_coll.begin(), state_coll.end(), state, AddressLessThan)); 116424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 116524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // If the addresses are equal, we can safely replace the previous entry 116624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // with the current one if the one it is replacing is an end_sequence entry. 116724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // We currently always place an extra end sequence when ever we exit a valid 116824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // address range for a function in case the functions get rearranged by 11695d187e5495ee17f6763337a6ae28c2a7b07e4945Greg Clayton // optimizations or by order specifications. These extra end sequences will 117024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // disappear by getting replaced with valid consecutive entries within a 117124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // compile unit if there are no gaps. 117224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (range.first == range.second) 117324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 117424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state_coll.insert(range.first, state); 117524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 117624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 117724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 117824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if ((distance(range.first, range.second) == 1) && range.first->end_sequence == true) 117924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 118024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner *range.first = state; 118124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 118224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner else 118324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 118424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner state_coll.insert(range.second, state); 118524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 118624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 118724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 118824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 118924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 119024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid 119124943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::Row::Dump(Log *log, const Row::collection& state_coll) 119224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 119324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner std::for_each (state_coll.begin(), state_coll.end(), bind2nd(std::mem_fun_ref(&Row::Dump),log)); 119424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 119524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 119624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 119724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 119824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// DWARFDebugLine::State::State 119924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 120024943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::State::State(Prologue::shared_ptr& p, Log *l, DWARFDebugLine::State::Callback cb, void* userData) : 120124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner Row (p->default_is_stmt), 120224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner prologue (p), 120324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log (l), 120424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner callback (cb), 120524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner callbackUserData (userData), 120624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row (StartParsingLineTable) 120724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 120824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Call the callback with the initial row state of zero for the prologue 120924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (callback) 121024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner callback(0, *this, callbackUserData); 121124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 121224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 121324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 121424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// DWARFDebugLine::State::Reset 121524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 121624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid 121724943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::State::Reset() 121824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 121924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner Row::Reset(prologue->default_is_stmt); 122024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 122124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 122224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 122324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// DWARFDebugLine::State::AppendRowToMatrix 122424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 122524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid 122624943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::State::AppendRowToMatrix(dw_offset_t offset) 122724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 122824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Each time we are to add an entry into the line table matrix 12295d187e5495ee17f6763337a6ae28c2a7b07e4945Greg Clayton // call the callback function so that someone can do something with 123024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // the current state of the state machine (like build a line table 123124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // or dump the line table!) 123224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (log) 123324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 123424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (row == 0) 123524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner { 123624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->PutCString ("Address Line Column File ISA Flags"); 123724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner log->PutCString ("------------------ ------ ------ ------ --- -------------"); 123824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 123924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner Dump (log); 124024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner } 124124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 124224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner ++row; // Increase the row number before we call our callback for a real row 124324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (callback) 124424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner callback(offset, *this, callbackUserData); 124524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner PostAppend(); 124624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 124724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 124824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 124924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// DWARFDebugLine::State::Finalize 125024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//---------------------------------------------------------------------- 125124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattnervoid 125224943d2ee8bfaa7cf5893e4709143924157a5c1eChris LattnerDWARFDebugLine::State::Finalize(dw_offset_t offset) 125324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner{ 125424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // Call the callback with a special row state when we are done parsing a 125524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner // line table 125624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner row = DoneParsingLineTable; 125724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner if (callback) 125824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner callback(offset, *this, callbackUserData); 125924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner} 126024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner 126124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//void 126224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//DWARFDebugLine::AppendLineTableData 126324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//( 126424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// const DWARFDebugLine::Prologue* prologue, 126524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// const DWARFDebugLine::Row::collection& state_coll, 126624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// const uint32_t addr_size, 126724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// BinaryStreamBuf &debug_line_data 126824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//) 126924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//{ 127024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (state_coll.empty()) 127124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 127224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // We have no entries, just make an empty line table 127324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(0); 127424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(1); 127524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(DW_LNE_end_sequence); 127624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 127724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// else 127824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 127924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// DWARFDebugLine::Row::const_iterator pos; 128024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// Row::const_iterator end = state_coll.end(); 128124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// bool default_is_stmt = prologue->default_is_stmt; 128224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// const DWARFDebugLine::Row reset_state(default_is_stmt); 128324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// const DWARFDebugLine::Row* prev_state = &reset_state; 128424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// const int32_t max_line_increment_for_special_opcode = prologue->MaxLineIncrementForSpecialOpcode(); 128524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// for (pos = state_coll.begin(); pos != end; ++pos) 128624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 128724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// const DWARFDebugLine::Row& curr_state = *pos; 128824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// int32_t line_increment = 0; 128924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// dw_addr_t addr_offset = curr_state.address - prev_state->address; 129024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// dw_addr_t addr_advance = (addr_offset) / prologue->min_inst_length; 129124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// line_increment = (int32_t)(curr_state.line - prev_state->line); 129224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 129324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // If our previous state was the reset state, then let's emit the 129424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // address to keep GDB's DWARF parser happy. If we don't start each 129524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // sequence with a DW_LNE_set_address opcode, the line table won't 129624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // get slid properly in GDB. 129724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 129824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (prev_state == &reset_state) 129924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 130024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(0); // Extended opcode 130124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append32_as_ULEB128(addr_size + 1); // Length of opcode bytes 130224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(DW_LNE_set_address); 130324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.AppendMax64(curr_state.address, addr_size); 130424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// addr_advance = 0; 130524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 130624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 130724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (prev_state->file != curr_state.file) 130824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 130924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(DW_LNS_set_file); 131024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append32_as_ULEB128(curr_state.file); 131124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 131224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 131324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (prev_state->column != curr_state.column) 131424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 131524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(DW_LNS_set_column); 131624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append32_as_ULEB128(curr_state.column); 131724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 131824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 131924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // Don't do anything fancy if we are at the end of a sequence 132024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // as we don't want to push any extra rows since the DW_LNE_end_sequence 132124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // will push a row itself! 132224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (curr_state.end_sequence) 132324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 132424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (line_increment != 0) 132524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 132624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(DW_LNS_advance_line); 132724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append32_as_SLEB128(line_increment); 132824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 132924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 133024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (addr_advance > 0) 133124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 133224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(DW_LNS_advance_pc); 133324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append32_as_ULEB128(addr_advance); 133424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 133524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 133624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // Now push the end sequence on! 133724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(0); 133824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(1); 133924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(DW_LNE_end_sequence); 134024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 134124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// prev_state = &reset_state; 134224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 134324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// else 134424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 134524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (line_increment || addr_advance) 134624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 134724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (line_increment > max_line_increment_for_special_opcode) 134824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 134924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(DW_LNS_advance_line); 135024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append32_as_SLEB128(line_increment); 135124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// line_increment = 0; 135224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 135324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 135424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// uint32_t special_opcode = (line_increment >= prologue->line_base) ? ((line_increment - prologue->line_base) + (prologue->line_range * addr_advance) + prologue->opcode_base) : 256; 135524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (special_opcode > 255) 135624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 135724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // Both the address and line won't fit in one special opcode 135824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // check to see if just the line advance will? 135924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// uint32_t special_opcode_line = ((line_increment >= prologue->line_base) && (line_increment != 0)) ? 136024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// ((line_increment - prologue->line_base) + prologue->opcode_base) : 256; 136124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 136224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 136324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (special_opcode_line > 255) 136424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 136524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // Nope, the line advance won't fit by itself, check the address increment by itself 136624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// uint32_t special_opcode_addr = addr_advance ? 136724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// ((0 - prologue->line_base) + (prologue->line_range * addr_advance) + prologue->opcode_base) : 256; 136824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 136924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (special_opcode_addr > 255) 137024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 137124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // Neither the address nor the line will fit in a 137224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // special opcode, we must manually enter both then 137324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // do a DW_LNS_copy to push a row (special opcode 137424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // automatically imply a new row is pushed) 137524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (line_increment != 0) 137624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 137724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(DW_LNS_advance_line); 137824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append32_as_SLEB128(line_increment); 137924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 138024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 138124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (addr_advance > 0) 138224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 138324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(DW_LNS_advance_pc); 138424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append32_as_ULEB128(addr_advance); 138524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 138624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 138724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // Now push a row onto the line table manually 138824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(DW_LNS_copy); 138924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 139024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 139124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// else 139224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 139324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // The address increment alone will fit into a special opcode 139424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // so modify our line change, then issue a special opcode 139524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // for the address increment and it will push a row into the 139624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // line table 139724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (line_increment != 0) 139824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 139924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(DW_LNS_advance_line); 140024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append32_as_SLEB128(line_increment); 140124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 140224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 140324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // Advance of line and address will fit into a single byte special opcode 140424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // and this will also push a row onto the line table 140524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(special_opcode_addr); 140624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 140724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 140824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// else 140924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 141024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // The line change alone will fit into a special opcode 141124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // so modify our address increment first, then issue a 141224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // special opcode for the line change and it will push 141324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // a row into the line table 141424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// if (addr_advance > 0) 141524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 141624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(DW_LNS_advance_pc); 141724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append32_as_ULEB128(addr_advance); 141824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 141924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// 142024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // Advance of line and address will fit into a single byte special opcode 142124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // and this will also push a row onto the line table 142224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(special_opcode_line); 142324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 142424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 142524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// else 142624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// { 142724943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // Advance of line and address will fit into a single byte special opcode 142824943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// // and this will also push a row onto the line table 142924943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// debug_line_data.Append8(special_opcode); 143024943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 143124943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 143224943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// prev_state = &curr_state; 143324943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 143424943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 143524943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner// } 143624943d2ee8bfaa7cf5893e4709143924157a5c1eChris Lattner//} 1437