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Code Issues Wiki Activity

Bug 276758, support for pe-dwarf.

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This commit is contained in:
Ken Ryall 2009-05-19 17:13:22 +00:00
parent 593cd79862
commit bd6747e339
4 changed files with 136 additions and 6 deletions
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14
core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/Coff.java
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@ -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;

36
core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/PE.java
View file

@ -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;
}
}

39
core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/debug/dwarf/Dwarf.java
View file

@ -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];

53
core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/debug/dwarf/DwarfReader.java
View file

@ -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 == '\\');
}