File indexing completed on 2024-05-12 05:43:27

 /*
     Copyright (C) 2015 Volker Krause <vkrause@kde.org>
 
     This program is free software; you can redistribute it and/or modify it
     under the terms of the GNU Library General Public License as published by
     the Free Software Foundation; either version 2 of the License, or (at your
     option) any later version.
 
     This program is distributed in the hope that it will be useful, but WITHOUT
     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Library General Public
     License for more details.
 
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.
 */
 
 #include "dwarfcudie.h"
 #include "dwarfline.h"
 
 #include <libdwarf.h>
 
 #include <QFileInfo>
 
 DwarfCuDie::DwarfCuDie(Dwarf_Die die, DwarfInfo* info) : DwarfDie(die, info)
 {
 
 }
 
 DwarfCuDie::~DwarfCuDie()
 {
     for (int i = 0; i < m_srcFileCount; ++i) {
         dwarf_dealloc(dwarfHandle(), m_srcFiles[i], DW_DLA_STRING);
     }
     dwarf_dealloc(dwarfHandle(), m_srcFiles, DW_DLA_LIST);
 
     for (int i = 0; i < m_lineCount; ++i) {
         dwarf_dealloc(dwarfHandle(), m_lines[i], DW_DLA_LINE);
     }
     dwarf_dealloc(dwarfHandle(), m_lines, DW_DLA_LIST);
 
     dwarf_dealloc(dwarfHandle(), m_die, DW_DLA_DIE);
 }
 
 const char* DwarfCuDie::sourceFileForIndex(int sourceIndex) const
 {
     if (!m_srcFiles) {
         auto res = dwarf_srcfiles(m_die, &m_srcFiles, &m_srcFileCount, nullptr);
         if (res != DW_DLV_OK)
             return nullptr;
     }
 
     Q_ASSERT(sourceIndex >= 0);
     Q_ASSERT(sourceIndex < m_srcFileCount);
     return m_srcFiles[sourceIndex];
 }
 
 void DwarfCuDie::loadLines() const
 {
     if (m_lines)
         return;
 
     dwarf_srclines(m_die, &m_lines, &m_lineCount, nullptr);
 }
 
 DwarfLine DwarfCuDie::lineForAddress(Dwarf_Addr addr) const
 {
     loadLines();
     // ### is this sorted in any way?
     for (int i = 0; i < m_lineCount; ++i) {
         DwarfLine line(m_lines[i]);
         if (line.address() == addr)
             return line;
     }
 
     return {};
 }
 
 QString DwarfCuDie::sourceFileForLine(DwarfLine line) const
 {
     char* srcFile = nullptr;
     auto res = dwarf_linesrc(line.handle(), &srcFile, nullptr);
     if (res != DW_DLV_OK)
         return {};
     auto fileName = QString::fromUtf8(srcFile);
     dwarf_dealloc(dwarfHandle(), srcFile, DW_DLA_STRING);
 
     QFileInfo fi(fileName);
     if (fi.exists())
         return fi.canonicalFilePath();
     return fileName;
 }