Crate dylex 

dylex - A high-performance dyld shared cache extractor.

This library provides functionality for extracting Mach-O images from Apple’s dyld shared cache. The extraction process reverses the optimizations applied by the SharedCacheBuilder to produce standalone dylib files.

Features

• Fast memory-mapped file I/O
• Support for split caches (iOS 15+, macOS 12+)
• Slide info processing (v2, v3, v5)
• LINKEDIT optimization
• Stub fixing
• ObjC metadata restoration

Example

use std::sync::Arc;
use dylex::{DyldContext, extract_image};

fn main() -> dylex::Result<()> {
    let cache = Arc::new(DyldContext::open("/path/to/dyld_shared_cache")?);

    // Find an image
    let image = cache.find_image("UIKit").expect("UIKit not found");

    // Extract it
    extract_image(&cache, &image.path, "output/UIKit")?;

    Ok(())
}

Re-exports

pub use dyld::DyldContext;

pub use dyld::ImageEntry;

pub use dyld::MappingEntry;

pub use error::Error;

pub use error::Result;

pub use macho::MachOContext;

Modules

arm64

ARM64 instruction encoding and decoding.

converter

Converters for extracting images from the dyld shared cache.

dyld

Dyld shared cache handling.

error

Error types for the dyld cache extractor.

macho

Mach-O file format handling.

Structs

ExtractionOptions

Options for image extraction.

Functions

extract_image

Extracts a single image from the cache.

extract_image_with_options

Extracts a single image from the cache with custom options.

find_images

Finds images matching a filter.

list_images

Lists all images in the cache.