Bug 276758, support for pe-dwarf.

core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/Coff.java

@@ -13,13 +13,16 @@ package org.eclipse.cdt.utils.coff;
 import java.io.EOFException;
 import java.io.IOException;
 import java.io.RandomAccessFile;
-import com.ibm.icu.text.DateFormat;
+import java.nio.ByteBuffer;
+import java.nio.channels.FileChannel.MapMode;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
 
 import org.eclipse.cdt.core.CCorePlugin;
 
+import com.ibm.icu.text.DateFormat;
+
 public class Coff {
 
 	public static final String NL = System.getProperty("line.separator", "\n"); //$NON-NLS-1$ //$NON-NLS-2$
@@ -308,6 +311,13 @@ public class Coff {
 //*/
 			return buffer.toString();
 		}
+
+		/**
+		 * @since 5.1
+		 */
+		public ByteBuffer mapSectionData() throws IOException {
+			return sfile.getChannel().map(MapMode.READ_ONLY, s_scnptr, s_paddr).load().asReadOnlyBuffer();
+		}
 	}
 
 	public static class Reloc {
@@ -563,7 +573,7 @@ public class Coff {
 //		}
 		return buffer.toString();
 	}
-
+	
 	public static String[] getStringTable(byte[] bytes) {
 		List<String> aList = new ArrayList<String>();
 		int offset = 0;

core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/PE.java

@@ -24,6 +24,7 @@ import org.eclipse.cdt.utils.coff.Coff.OptionalHeader;
 import org.eclipse.cdt.utils.coff.Coff.SectionHeader;
 import org.eclipse.cdt.utils.coff.Coff.Symbol;
 import org.eclipse.cdt.utils.coff.Exe.ExeHeader;
+import org.eclipse.cdt.utils.debug.dwarf.DwarfReader;
 import org.eclipse.cdt.utils.debug.stabs.StabsReader;
 
 /**
@@ -65,6 +66,7 @@ import org.eclipse.cdt.utils.debug.stabs.StabsReader;
  */
 public class PE {
 
+	
 	public static final String NL = System.getProperty("line.separator", "\n"); //$NON-NLS-1$ //$NON-NLS-2$
 	RandomAccessFile rfile;
 	String filename;
@@ -840,6 +842,40 @@ public class PE {
 		if (reader == null) {
 			reader = createCodeViewReader();
 		}
+		if (reader == null) {
+			reader = createDwarfReader();
+		}
 		return reader;
 	}
+
+	private ISymbolReader createDwarfReader() {
+		DwarfReader reader = null;
+		// Check if Dwarf data exists
+		try {
+			reader = new DwarfReader(this);
+		} catch (IOException e) {
+			// No Dwarf data in the Elf.
+		}
+		return reader;
+	}
+
+	/**
+	 * @since 5.1
+	 */
+	public String getStringTableEntry(int offset) throws IOException
+	{
+		byte[] bytes = getStringTable();
+		offset = offset - 4;
+		for (int i = offset; i < bytes.length; i++) {
+			if (bytes[i] == 0) {
+				return new String(bytes, offset, i - offset);
+			}
+		}
+		
+		return new String();
+	}
+
+	public String getFilename() {
+		return filename;
+	}
 }

core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/debug/dwarf/Dwarf.java

@@ -20,6 +20,8 @@ import java.util.List;
 import java.util.Map;
 
 import org.eclipse.cdt.core.CCorePlugin;
+import org.eclipse.cdt.utils.coff.PE;
+import org.eclipse.cdt.utils.coff.Coff.SectionHeader;
 import org.eclipse.cdt.utils.debug.DebugUnknownType;
 import org.eclipse.cdt.utils.debug.IDebugEntryRequestor;
 import org.eclipse.cdt.utils.debug.tools.DebugSym;
@@ -178,6 +180,13 @@ public class Dwarf {
 		init(exe);
 	}
 
+	/**
+	 * @since 5.1
+	 */
+	public Dwarf(PE exe) throws IOException {
+		init(exe);
+	}
+
 	public void init(Elf exe) throws IOException {
 		Elf.ELFhdr header = exe.getELFhdr();
 		isLE = header.e_ident[Elf.ELFhdr.EI_DATA] == Elf.ELFhdr.ELFDATA2LSB;
@@ -198,6 +207,36 @@ public class Dwarf {
 		}
 	}
 
+	/**
+	 * @since 5.1
+	 */
+	public void init(PE exe) throws IOException {
+		
+		isLE = true;
+		SectionHeader[] sections = exe.getSectionHeaders();
+
+
+		for (int i = 0; i < sections.length; i++) {
+			String name = new String(sections[i].s_name).trim();
+			if (name.startsWith("/")) //$NON-NLS-1$
+			{
+				int stringTableOffset = Integer.parseInt(name.substring(1));
+				name = exe.getStringTableEntry(stringTableOffset);
+			}
+			for (String element : Dwarf.DWARF_SCNNAMES) {
+				if (name.equals(element)) {
+					try {
+						dwarfSections.put(element, sections[i].mapSectionData());
+					} catch (Exception e) {
+						e.printStackTrace();
+						CCorePlugin.log(e);
+					}
+				}
+			}
+			}
+
+	}
+
 	int read_4_bytes(ByteBuffer in) throws IOException {
 		try {
 			byte[] bytes = new byte[4];

core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/debug/dwarf/DwarfReader.java

@@ -21,6 +21,8 @@ import java.util.List;
 
 import org.eclipse.cdt.core.CCorePlugin;
 import org.eclipse.cdt.core.ISymbolReader;
+import org.eclipse.cdt.utils.coff.PE;
+import org.eclipse.cdt.utils.coff.Coff.SectionHeader;
 import org.eclipse.cdt.utils.debug.IDebugEntryRequestor;
 import org.eclipse.cdt.utils.elf.Elf;
 import org.eclipse.cdt.utils.elf.Elf.Section;
@@ -33,6 +35,11 @@ import org.eclipse.core.runtime.Path;
  */
 public class DwarfReader extends Dwarf implements ISymbolReader {
 
+	private static boolean isWindows() {
+		String os = System.getProperty("os.name"); //$NON-NLS-1$
+		return (os != null && os.toLowerCase().startsWith("win")); //$NON-NLS-1$
+	}
+
 	// These are sections that need be parsed to get the source file list.
 	final static String[] DWARF_SectionsToParse =
 		{
@@ -42,12 +49,12 @@ public class DwarfReader extends Dwarf implements ISymbolReader {
 			DWARF_DEBUG_STR		// this is optional. Some compilers don't generate it.
 		};
 
-	private Collection<String>	m_fileCollection = new ArrayList<String>();
+	private final Collection<String>	m_fileCollection = new ArrayList<String>();
 	private String[] 	m_fileNames = null;
 	private String		m_exeFileWin32Drive; // Win32 drive of the exe file.
 	private boolean		m_onWindows;
 	private boolean		m_parsed = false;
-	private ArrayList<Integer>	m_parsedLineTableOffsets = new ArrayList<Integer>();
+	private final ArrayList<Integer>	m_parsedLineTableOffsets = new ArrayList<Integer>();
 	private int			m_parsedLineTableSize = 0;
 		
 	public DwarfReader(String file) throws IOException {
@@ -58,6 +65,13 @@ public class DwarfReader extends Dwarf implements ISymbolReader {
 		super(exe);
 	}
 
+	/**
+	 * @since 5.1
+	 */
+	public DwarfReader(PE exe) throws IOException  {
+		super(exe);
+	}
+
 	// Override parent.
 	// 
 	@Override
@@ -80,7 +94,6 @@ public class DwarfReader extends Dwarf implements ISymbolReader {
 					try {
 						dwarfSections.put(element, section.mapSectionData());
 					} catch (Exception e) {
-						e.printStackTrace();
 						CCorePlugin.log(e);
 					}
 				}
@@ -89,12 +102,44 @@ public class DwarfReader extends Dwarf implements ISymbolReader {
 		
 		// Don't print during parsing.
 		printEnabled = false;
-
 		m_parsed = false;
 		
 		Path pa = new Path(exe.getFilename());
 		m_exeFileWin32Drive = pa.getDevice(); 
 		
+		m_onWindows = isWindows();
+	}
+
+	@Override
+	public void init(PE exe) throws IOException {
+
+		isLE = true;
+		SectionHeader[] sections = exe.getSectionHeaders();
+
+		for (int i = 0; i < sections.length; i++) {
+			String name = new String(sections[i].s_name).trim();
+			if (name.startsWith("/")) //$NON-NLS-1$
+			{
+				int stringTableOffset = Integer.parseInt(name.substring(1));
+				name = exe.getStringTableEntry(stringTableOffset);
+			}
+			for (String element : Dwarf.DWARF_SCNNAMES) {
+				if (name.equals(element)) {
+					try {
+						dwarfSections.put(element, sections[i].mapSectionData());
+					} catch (Exception e) {
+						CCorePlugin.log(e);
+					}
+				}
+			}
+		}
+		// Don't print during parsing.
+		printEnabled = false;
+		m_parsed = false;
+
+		Path pa = new Path(exe.getFilename());
+		m_exeFileWin32Drive = pa.getDevice();
+
 		m_onWindows = (File.separatorChar == '\\');
 	}