StikJIT

An iOS XCFramework that enables JIT for another process over the device's RSD tunnel. Based on StikDebug.

A separate process (e.g. an app extension) attaches a debugserver to the target by PID, marks its JIT memory executable, then detaches. It is self-contained: the idevice FFI and universal.js are bundled inside. The target must carry the get-task-allow entitlement.

Use

Add StikJIT.xcframework to your target (Embed & Sign), then call it off the main thread:

import StikJIT

try StikJIT.enableJIT(
    targetPID: hostPID,             // process to enable JIT for
    pairingFile: pairingFileURL,    // device pairing file
    progress: { print("[StikJIT] \($0)") }
)

It blocks until done and throws StikJITError on failure. Pass configuration: to override the tunnel endpoint (defaults to 10.7.0.1:49152).

Build

xcodegen generate
xcodebuild archive -scheme StikJIT -destination 'generic/platform=iOS' \
  -archivePath build/StikJIT BUILD_LIBRARY_FOR_DISTRIBUTION=YES
xcodebuild -create-xcframework \
  -framework build/StikJIT.xcarchive/Products/Library/Frameworks/StikJIT.framework \
  -output StikJIT.xcframework

License

StikJIT is licensed under the MPL-2.0 (see LICENSE). It uses StikDebug as a reference, with the bundled idevice and universal.js retaining their own licenses.