updating JIT FOR IOS 26+ #32
Open
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Add iOS 26 TXM state to CMemoryFunction
Add iOS 26 TXM state to CMemoryFunction
Detect iOS 26 TXM mode via PLAY_HAS_TXM
Skip vm_protect on iOS 26 TXM
update for ios26
Owner
|
Nice! How can this be tested? |
fix: remove duplicate code
Implements comprehensive JIT support for iOS with three operating modes: - Legacy mode (iOS < 26): Toggle W^X using mprotect() - LuckNoTXM mode (iOS 26+ without TXM): RW/RX mirrors per allocation via vm_remap() - LuckTXM mode (iOS 26+ with TXM): Pre-allocated 512MB region with lwmem allocator Changes: - Added lwmem submodule for dynamic memory management in LuckTXM mode - Created MemoryUtil.h public API with AllocateExecutableMemory/FreeExecutableMemory - Implemented dispatcher (MemoryUtil_iOS.cpp) to route calls based on JIT type - Created mode-specific implementations: * MemoryUtil_iOS_Legacy.cpp - mprotect() toggle for iOS < 26 * MemoryUtil_iOS_LuckNoTXM.cpp - Per-allocation vm_remap() for iOS 26+ * MemoryUtil_iOS_LuckTXM.cpp - 512MB pre-allocated region with TXM support - Added JITMemoryTracker for thread-safe region tracking in Legacy mode - Updated CMakeLists.txt to conditionally build iOS files and link lwmem Architecture: - Modular design allows runtime selection of JIT mode via SetJitType() - LuckTXM uses ARM64 breakpoint instruction (brk #0x69) to signal TXM - All modes provide clean separation between readable-executable (RX) and readable-writable (RW) memory regions as required by iOS security model Based on Dolphin iOS JIT implementation adapted for Play! PS2 Emulator.
ios jit support p l5ga
Author
Sorry im just spitballing here , trying to add dual map , but its mostly experimentation at this stage , hope it will be helpful |
Author
|
So the experiment was a success , but im not yet ready to merge it , i use dolphionios method for the allocution and kept the legacy method for non txm for old gpu model before A15+ |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
3 participants
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
No description provided.