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Code Issues Wiki Activity

Support PE file inspection within static libraries

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This commit is contained in:
John Dallaway 2023-12-18 16:21:55 +00:00
parent 36110e1251
commit dde763ac0c
2 changed files with 17 additions and 10 deletions
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23
core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/PE64.java
View file

@ -1,5 +1,5 @@
/*******************************************************************************
* Copyright (c) 2000, 2019 Space Codesign Systems and others.
* Copyright (c) 2000, 2023 Space Codesign Systems and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
@ -11,6 +11,7 @@
* Contributors:
* Space Codesign Systems - Initial API and implementation
* QNX Software Systems - Initial PE class
.* John Dallaway - Support offset into archive file (#630)
*******************************************************************************/
package org.eclipse.cdt.utils.coff;
@ -83,6 +84,7 @@ public class PE64 implements AutoCloseable {
SectionHeader[] scnhdrs;
Symbol[] symbolTable;
byte[] stringTable;
private final long peOffset; // the offset of this PE within the file (eg archive file)
public static class Attribute {
public static final int PE_TYPE_EXE = 1;
@ -456,6 +458,7 @@ public class PE64 implements AutoCloseable {
}
public PE64(String filename, long pos, boolean filter) throws IOException {
peOffset = pos;
try {
rfile = new RandomAccessFile(filename, "r"); //$NON-NLS-1$
this.filename = filename;
@ -466,7 +469,7 @@ public class PE64 implements AutoCloseable {
exeHeader = new ExeHeader(rfile);
dosHeader = new DOSHeader(rfile);
// Jump the Coff header, and Check the sig.
rfile.seek(dosHeader.e_lfanew);
rfile.seek(dosHeader.e_lfanew + peOffset);
byte[] sig = new byte[4];
rfile.readFully(sig);
if (!((sig[0] == 'P') && (sig[1] == 'E') && (sig[2] == '\0') && (sig[3] == '\0'))) {
@ -735,7 +738,7 @@ public class PE64 implements AutoCloseable {
ntHeaderSize = NTOptionalHeader32.NTHDRSZ;
offset += FileHeader.FILHSZ + getOptionalHeader().getSize() + ntHeaderSize;
accessFile.seek(offset);
accessFile.seek(offset + peOffset);
dataDirectories = new ImageDataDirectory[PEConstants.IMAGE_NUMBEROF_DIRECTORY_ENTRIES];
byte[] data = new byte[dataDirectories.length * (4 + 4)];
accessFile.readFully(data);
@ -759,7 +762,7 @@ public class PE64 implements AutoCloseable {
}
offset += FileHeader.FILHSZ + fileHeader.f_opthdr;
for (int i = 0; i < scnhdrs.length; i++, offset += SectionHeader.SCNHSZ) {
scnhdrs[i] = new SectionHeader(accessFile, offset);
scnhdrs[i] = new SectionHeader(accessFile, offset + peOffset);
}
}
return scnhdrs;
@ -775,7 +778,8 @@ public class PE64 implements AutoCloseable {
long offset = fileHeader.f_symptr;
symbolTable = new Symbol[fileHeader.f_nsyms];
for (int i = 0; i < symbolTable.length; i++, offset += Symbol.SYMSZ) {
Symbol newSym = new Symbol(accessFile, offset, (fileHeader.f_flags & FileHeader.F_AR32WR) == 0);
Symbol newSym = new Symbol(accessFile, offset + peOffset,
(fileHeader.f_flags & FileHeader.F_AR32WR) == 0);
// Now convert section offset of the symbol to image offset.
if (newSym.n_scnum >= 1 && newSym.n_scnum <= secHeaders.length) // valid section #
@ -799,14 +803,14 @@ public class PE64 implements AutoCloseable {
RandomAccessFile accessFile = getRandomAccessFile();
long symbolsize = Symbol.SYMSZ * fileHeader.f_nsyms;
long offset = fileHeader.f_symptr + symbolsize;
accessFile.seek(offset);
accessFile.seek(offset + peOffset);
byte[] bytes = new byte[4];
accessFile.readFully(bytes);
int str_len = ReadMemoryAccess.getIntLE(bytes);
if (str_len > 4 && str_len < accessFile.length()) {
str_len -= 4;
stringTable = new byte[str_len];
accessFile.seek(offset + 4);
accessFile.seek(offset + 4 + peOffset);
accessFile.readFully(stringTable);
} else {
stringTable = new byte[0];
@ -932,12 +936,13 @@ public class PE64 implements AutoCloseable {
// loop through the debug directories looking for CodeView (type 2)
for (int j = 0; j < debugFormats; j++) {
PE64.IMAGE_DEBUG_DIRECTORY dir = new PE64.IMAGE_DEBUG_DIRECTORY(accessFile, fileOffset);
PE64.IMAGE_DEBUG_DIRECTORY dir = new PE64.IMAGE_DEBUG_DIRECTORY(accessFile,
fileOffset + peOffset);
if ((2 == dir.Type) && (dir.SizeOfData > 0)) {
// CodeView found, seek to actual data
int debugBase = dir.PointerToRawData;
accessFile.seek(debugBase);
accessFile.seek(debugBase + peOffset);
// sanity check. the first four bytes of the CodeView
// data should be "NB11"

4
core/org.eclipse.cdt.core/utils/org/eclipse/cdt/utils/coff/parser/PEBinaryObject64.java
View file

@ -1,5 +1,5 @@
/*******************************************************************************
* Copyright (c) 2000, 2019 Space Codesign Systems and others.
* Copyright (c) 2000, 2023 Space Codesign Systems and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
@ -11,6 +11,7 @@
* Contributors:
* Space Codesign Systems - Initial API and implementation
* QNX Software Systems - Initial PEBinaryObject class
* John Dallaway - Fix archive header processing (#630)
*******************************************************************************/
package org.eclipse.cdt.utils.coff.parser;
@ -47,6 +48,7 @@ public class PEBinaryObject64 extends BinaryObjectAdapter {
public PEBinaryObject64(IBinaryParser parser, IPath path, AR.ARHeader header) {
super(parser, path, IBinaryFile.OBJECT);
this.header = header;
}
public PEBinaryObject64(IBinaryParser parser, IPath p, int type) {