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#pragma once
#include "binaryninjaapi.h"
#include "SharedCache.h"
// Information required to apply slide (relocation) info to a mapping
struct SlideMappingInfo
{
dyld_cache_mapping_info mappingInfo;
// NOTE: Offset is relative to the beginning of the entry file.
uint64_t address;
uint16_t slideInfoVersion;
union
{
dyld_cache_slide_info_v2 slideInfoV2;
dyld_cache_slide_info_v3 slideInfoV3;
dyld_cache_slide_info_v5 slideInfoV5;
};
};
// Current usages of the slide info are:
// - Reading export symbols requires slide info to be processed.
// - Reading objc stuff
// - Loading an image or region
// - Reading branch island mappings????
class SlideInfoProcessor
{
BinaryNinja::Ref<BinaryNinja::Logger> m_logger;
// Base address of the shared cache, NOT the base address of the entry.
uint64_t m_baseAddress;
public:
explicit SlideInfoProcessor(uint64_t baseAddress);
std::vector<SlideMappingInfo> ReadEntryInfo(const MappedFileRegion& file, const CacheEntry& entry) const;
// Write the slide information back to the entries memory mapped regions.
void ApplyMappings(MappedFileRegion& file, const std::vector<SlideMappingInfo>& mappings) const;
std::vector<SlideMappingInfo> ProcessEntry(MappedFileRegion& file, const CacheEntry& entry) const;
};
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