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Code Issues Releases Wiki Activity

GP-5767: Support for iOS 26 BETA dyld_shared_cache

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This commit is contained in:
Ryan Kurtz 2025-06-18 14:07:43 -04:00
parent aed1cf1c4e
commit 9e4e43d9f8
20 changed files with 241 additions and 110 deletions
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34
Ghidra/Features/FileFormats/src/main/java/ghidra/file/formats/ios/dyldcache/DyldCacheFileSystem.java
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@ -28,6 +28,7 @@ import ghidra.app.util.bin.format.macho.MachHeader;
import ghidra.app.util.bin.format.macho.commands.SegmentCommand;
import ghidra.app.util.bin.format.macho.dyld.*;
import ghidra.app.util.importer.MessageLog;
import ghidra.app.util.opinion.DyldCacheUtils.DyldCacheImageRecord;
import ghidra.app.util.opinion.DyldCacheUtils.SplitDyldCache;
import ghidra.formats.gfilesystem.*;
import ghidra.formats.gfilesystem.annotations.FileSystemInfo;
@ -78,26 +79,23 @@ public class DyldCacheFileSystem extends AbstractFileSystem<DyldCacheEntry> {
RangeSet<Long> allDylibRanges = TreeRangeSet.create();
// Find the DYLIB's and add them as files
monitor.initialize(splitDyldCache.size(), "Find DYLD DYLIBs...");
for (int i = 0; i < splitDyldCache.size(); i++) {
List<DyldCacheImageRecord> imageRecords = splitDyldCache.getImageRecords();
monitor.initialize(imageRecords.size(), "Find DYLD DYLIBs...");
for (DyldCacheImageRecord imageRecord : imageRecords) {
monitor.increment();
DyldCacheHeader header = splitDyldCache.getDyldCacheHeader(i);
ByteProvider p = splitDyldCache.getProvider(i);
for (DyldCacheImage mappedImage : header.getMappedImages()) {
MachHeader machHeader =
new MachHeader(p, mappedImage.getAddress() - header.getBaseAddress());
RangeSet<Long> rangeSet = TreeRangeSet.create();
for (SegmentCommand segment : machHeader.parseSegments()) {
Range<Long> range = Range.openClosed(segment.getVMaddress(),
segment.getVMaddress() + segment.getVMsize());
rangeSet.add(range);
}
DyldCacheEntry entry =
new DyldCacheEntry(mappedImage.getPath(), i, rangeSet, null, null, -1);
rangeSet.asRanges().forEach(r -> rangeMap.put(r, entry));
allDylibRanges.addAll(rangeSet);
fsIndex.storeFile(mappedImage.getPath(), fsIndex.getFileCount(), false, -1, entry);
DyldCacheImage image = imageRecord.image();
MachHeader machHeader = splitDyldCache.getMacho(imageRecord);
RangeSet<Long> rangeSet = TreeRangeSet.create();
for (SegmentCommand segment : machHeader.parseSegments()) {
Range<Long> range = Range.openClosed(segment.getVMaddress(),
segment.getVMaddress() + segment.getVMsize());
rangeSet.add(range);
}
DyldCacheEntry entry = new DyldCacheEntry(image.getPath(),
imageRecord.splitCacheIndex(), rangeSet, null, null, -1);
rangeSet.asRanges().forEach(r -> rangeMap.put(r, entry));
allDylibRanges.addAll(rangeSet);
fsIndex.storeFile(image.getPath(), fsIndex.getFileCount(), false, -1, entry);
}
// Find and store all the mappings for all of the subcaches. We need to remove the DYLIB's