ANDROID COMPATIBILITY PROJECT

Project32Droid

A focused project exploring how legacy 32-bit Android experiences can remain accessible on modern devices.

Active 62%

ACHIEVED

✓ A clear compatibility-focused product direction
✓ A structured project foundation for legacy Android experiences
✓ A dedicated environment for validating target applications
✓ A practical roadmap for continued compatibility work

NEXT MILESTONE

4 complete A5 next 34 planned

PHASE A

ELF loader correctness

A1Dependency graph and load statesdone

A2PT_LOAD VA/file translationdone

A3Relocation and symbol boundsdone

A4Constructor metadata validationdone

A5Relocated constructor target inspectionnext

PHASE B

Safe runtime initialization

B1 · Execute one validated constructor at a time

B2 · Implement constructor stop/return boundaries

B3 · Run JNI_OnLoad after constructor policy is known

B4 · Remove unsafe generic constructor assumptions

B5 · Add per-library initialization traces

PHASE C

Core guest ABI

C1 · Replace generic import fallback with typed registry

C2 · Guest data objects: __sF, environ, ctype, errno

C3 · Memory/string functions

C4 · ARM EABI helpers

C5 · libc time/filesystem/error behavior

C6 · pthread/TLS model

PHASE D

CPU performance

D1 · Complete CpuBackend abstraction

D2 · Remove application-level Unicorn coupling

D3 · Implement real ARM32 JIT backend

D4 · Validate ARM, Thumb-2, VFP, and NEON

D5 · Add block cache/invalidation

D6 · Add performance counters and frame budgets

PHASE E

Android and graphics

E1 · Typed JNI reference/object tables

E2 · Surface/window lifecycle

E3 · EGL handle translation

E4 · GLES resource/state marshalling

E5 · input, sensors, audio, timing

E6 · frame pacing and presentation

PHASE F

O Sir playable profile

F1 · Boot to title/menu

F2 · Render stable frames

F3 · Touch/controller input

F4 · Asset/filesystem compatibility

F5 · Audio

F6 · Save data and lifecycle

F7 · Remove/contain current hard-coded patches

PHASE G

Gameloft expansion

G1 · APK/OBB intake manifest

G2 · shared Gameloft ABI profile

G3 · The Dark Knight Rises

G4 · The Amazing Spider-Man

G5 · versioned compatibility profiles