box86/docs/CHANGELOG.md

v0.3.4

• X86Libs: Updated libstdc++ & libgcc_s
• X86Libs: Use x86 vrsion of libunwind (it's needed by wine)
• Dynarec: Fixed some flags propagation issues inside blocks
• Dynarec: Improved Strong Memory Model emulation, introducing a 3rd level
• CPU: Remoworked how INT, priviliged opcodes and teh Trace flags works
• CPU: Added full support for SSE4.2
• ElfLoader: rework how elf memory is handled
• Emulation: Better handling of Signal (also handling SIGMAX correctly)
• Emulation: Better support for POKEUSER/PEEKUSER (helps Windows Unity games)
• Wrapping: More libs and some fixes in function wrapping (gtk3, vulkan...)
• Wrapping: Removed faked libunwind wrapping
• Hardware: Added more profile, with support for ADLink Ampere Altra
• OS: Added profile to build for Android and Termux. => Mostly a stability update with improved elfloader again, and added SSE 4.2 support (still need to work on the Dynarec part of this) => Some work also to reduce the memory footprint

v0.3.2

• Better syscall handling
• Fixed some wrapped functions, added some others
• Introduced another wrapper helper
• Added some more opcodes
• Added a cosimulation mode (to compare the behaviour of the dynarec against the interpreter)
• Added support of FASTNAN for some more opcodes
• Reduced memory footprint
• Added BOX86_NOSANDBOX (adds an argument to the command line)
• Added an ukrainian translation => Mostly a stability update with improved elfloader, fixed opcodes and refined profiles

v0.3.0

• Added rcfile handling: box86 now read /etc/box86.box86rc and ~/.box86rc and apply per process parameters => Every program can be finetuned, for speed or just to make them work
• Added BOX86_DYNAREC_FORWARD to allow bigger Dynarec block to be build
• Refactored Strong Memory Model emulation (faster and more accurate)
• Box86 now return a custom name for the CPU instal of P4, build with Box86 and the cpu name it's running on
• Improved memory protection tracking and signal handling, again
• More wrapped libs (especially on the gtk familly)
• More wrapped functions
• Added support for CreateDeviceEx in d3dadapter9, for better gallium nine support
• Improved dladdr/dladdr1 wrapped function
• Some fixes to flags handling in the Dynarec on some special cases
• Added specific suppport for RK3588 board (needed some hack in signal handling, probably due to the use of a non mainlined kernel)
• Lots of improvment in the Rounding of float & double (Dynarec and Interpretor), and proper handling of denormals when converting to/from 80 bits long double
• Added specific suppport for RK3588 board (needed some hack in signal handling, probably due to the use of a non mainlined kernel)

v0.2.8

• Wrapped more vulkan function, dxvk 2.0 now works
• Added support for overriden malloc/free functions
• Improved elf loader
• Improved dlsym handling with RTLD_NEXT
• Added BOX86_DYNAREC_SAFEFLAGS to allow finetuning Dynarec generated code handling of flags accross function calls and returns.
• Added BOX86_BASH to setup x86 bash binary, so shell script can be run in x86 world
• Added BOX86_ROLLING_LOG to have details log only on crash
• Improved TLS Size handling (Unity3D games now works)
• Improved execv family of function to have better box86 integration
• Added a few more wrapped libs, like FAudio
• Improved gtk, SDL2, GL, vulkan (and more) wrapping
• Improved Signal Handling and memory protection traking
• Added some basic support for statically linked program. Thread are not working yet, but memory allocation and file access does. => with the use of the new SafeFlags, some C# Windows program now runs fine (it's forced when the Vara family of software is detected) => With the basic support of statcaly linked program, old emulator like modeler for linux works. Program with threads like mugen for linux still doesn't => The bash integration is usefull for device with no binfmt integration or for script that check the machine it's running on

v0.2.6

• Added an option to get generated -NAN on SSE2 operation
• Many small fixes and improvement to get steam and SteamPlay working (along with box64)
• Added some workaround for program calling uname to mimic x86 system
• Added some more Vulkan extensions
• Added some granularity to mmap64, and generic memory protection tracking improvment, to mimic x86 system (for wine stagging and proton)
• Better clone syscall and libc implementation
• Improved wrapping of GTK libs
• More wrapped libs (more gtk libs, like gstreamer-1.0 among other non-gtk libs too)
• More wrapped functions(with some tricky one, like dladdr1)
• Some fixes and improvment to some wrapped functions
• Refactor Dynarec:
  • better handling of SSE/x87 registers
  • optimisation to limit float/double conversion
  • better handling of "internal" jump inside a dynablock
• Improved elfloader
• Improved some tests
• A few fixes in some Dynarec opcodes
• Don't quit on unsupported syscall, return -1 / ENOSYS error
• A bit more optimisation in some Dynarec opcodes

v0.2.4

• Some work on Dynarec to limit the number of mutex use, and also allow smaller block to be built (for JIT'd programs)
• Introduce BOX86_DYNAREC_STRONGMEM, like with box64 (not found any program that needs that yet)
• More vulkan wrapped function (so dkvk works, at least with RX550)
• Reworked Elfloader part, with better handling of versionned symbols
• Improve speed for x87 code (by avoiding many float<->double conversion)
• Improve speed of the custom allocator used by dynarec and Hash (speedup loading)
• Added a detection of box64 in uname call, to expose an x86_64 system instead of i386 one
• Added a fix for linking box86 on system using glibc 2.34+
• A few more wrapped libs
• More ARM hardware option in CMake (Phytium, SD845)
• Changed a bit struture of Dynarec, switching some operations from Pass1 to Pass0
• Small fixes to elfloader
• Some fixes and improvments on wrapped libs (mainly gtk2, gtk3 and d3dadpter)
• Better VSyscall implementation
• Fixed the "Alternate" handling (address shadowing on x86 side)
• A few opcodes border case fixes
• Improved wrapper helpers (from rajdakin)
• Added a mecanism to cancel a Dynarec block construction if it triggers a segfault (instead of a crash)
• Improvment to the handling of longjmp inside signal handlers

v0.2.2

• Reworked some elfloader relocation mecanism
• Removed old "smart linker" and replace with a simple "jump table"
• Also removed CALL/RET optomisation from Dynarec, simple Jump Table is faster
• Reworked all memory protection tracking
• A few more wrapped libs and wrapped functions
• A few more opcodes
• A few more dynarec opcodes
• Some optimisation in Dynarec around ZF and CF flags handlings, and LL/GE/LE/G conditionnal opcodes
• Some changes to the "cancel threads" handling
• Some changes to the "thread once" handling

v0.2.0

• Improvements on x86 Flags handling.
• A few more opcode has been added.
• A few potential BusError are now fixed.
• Added the BOX86_NOVULKAN en. var. . This is used to disable the wrapping of vulkan libraries.
• Improvments on libc O_XXXX flags handling.
• Box86 now uses a custom allocator for Dynarec and Hash tables.
• Improved the wrapping of pulse audio.
• Optimisation to a few Dynarec opcode (like SHRD/SHLD).
• Improved the tracking of memory protection.
• A few more wrapping of libraries (like libgssapi_krb5).
• More function wrapping on libturbojpeg
• Preliminary support for POWER9 (ppcle) build
• Many contributions to remove typos and rephrase the README, COMPILE and USAGE documents

v0.1.8

• Fixes on some float to int x86 convertions opcodes.
• Reworked all callback mecanisms.
• Added libturbojpeg wrapping (and a hack for zoom to force using native one).
• Added the BOX86_SAFEMMAP env. var.
• Reworked Dynarec's memory manager.
• Added a few opcodes.
• Improve elfloader to not force PltResolver all the time (fixing SuperHexagon and maybe other)
• Reworked Exet and Cancel Thread mecanism.
• Added wrapped libldap_r and liblber library (used by wine)
• Reworked Dynarec block handling, and remove the "AddMark" mecanism that wasn't efficient enough
• Added TokiTori 2+ detection and runtime patch on the Raspberry Pi platform
• Fixes on elfloader with TLS object.

v0.1.6

• Changes in Dynarec to make flags optimizations before CALL and RET opcode less aggressive.
• Added a Vulkan wrapper.
• Improved wrapping of SDL_mixer/ SDL2_mixer libraries.
• Improved wrapping of some GTK structures.
• Added a quick and dirty wrapping of GTK3 (based on current GTK2).
• Improved the signal handling, should be more stable now (the signal handler from syscall still need some works).
• Added the RK3399 profile, and some hints to build 32bits box86 on 64bits OS.
• Fixed some wrapped printf formating not handled correctly.
• Fixed some buserror with the new LOCK mecanism handling.
• A few more Dynarec opcodes added.
• If winedbg is tried to be launched, exit without launching it (it doesn't work anyways).

v0.1.4

• Change in Dynarec's memory handling, to simplify it (and hopefully optimized it).
• Even more opcodes added.
• And some more Dynarec opcodes.
• Fixed some issue were PltResolver was injected but should not be.
• Fixed many Dynarec and non dynarec opcodes.
• Improved Signal handling.
• Added a few more wrapped libraries (like curl).
• Gallium9 is now wrapped (thx @icecream95).
• Fixed and simplied many wrapped functions (especialy the one where a callback is involved).
• Fixed Dynarec "freeing" a Dynablock sometimes causing a corruption of the heap (generally happens in case of JIT code).
• Optimized the way LOCK prefix work when using Dynarec on ARM.
• improvements to the ARM opcode Printer (for dumping Dynarec blocks) improvement (thx @rajdakin).

v0.1.2

• The Dynarec now handle JIT code
• Added support for Unity games (not perfect yet).
• Added support for Wine (not perfect yet). You need an x86 build of Wine to use it.
• Added support for Steam (not perfect yet). Note that Steam have limited functionalities on 32bits (only mini-mode is available).
• More wrapped libs
• Added support for the "PltResolver". This makes the order of libraries less important and many symbols are now resolved at runtime.
• Added an option to build Box86 as a library (to wrap dynamic library).
• Better Signal handling (not perfect yet).
• More opcodes added, more opcode fixes.
• More Dynarec opcodes.
• Added support for FS:, and creating custom selector (needed by Wine).
• There is now 1 x86emu_t structure per thread (simplifying/optimising many callback handling).
• Box86 now has a logo!
• Added options handling (only version and help for now). Now it's much usefull exept for version printing.

v0.1.0

• Dynarec!!! Only for ARM (note that Dynarec doesn't support JITed code for now).
• Added real support for getcontext/set/context/makecontext/swapcontext.
• Preliminary signal handling.
• Fixes to SDL(1/2) Image and SDL1 Mixer, and to SDL1.2 RWops usage.
• Fixed numerous issues in opcodes (both interpretor and dynarec). FTL works fine now, among many others.
• Added wrapped GTK support (still ongoing, many libraries involved).
• Make loading of libraries more configurable.
• If a wrapped native library is not found, try to use an emulated one.
• Added an env. var. to force the use of emulated libraries for certain libraries.
• Added an env. var. to precise which libGL to use.
• Added Install / Uninstall target (using systemd binfmt).
• Added more hardware targets (RPis, GameShell...).
• Wrapped more libraries (including FreeType, smpeg, ncurses, sndfile...).

v0.0.4

• Improved the initialisation of dependent libraries. More things work now.
• Added a lot of wrapped functions.
• Added a few wrapped libraries (like libz or some other x11 related library).
• For trace enabled build, Trace can be enabled only after a certain amount of opcodes (still, a debugger would be better).
• Some fixes in a few opcodes, and implemented x87 rounding (SuperMeatBoy behaves better now).
• FTL 1.6.9 still has corrupted music, but older 1.5.13 seems fine (different set of libraries).

v0.0.2

• A full commercial games runs fine on the Pandora platform: Airline Tycoon Deluxe.
• Implemented all planned subparts of Box86 except JIT support.
• CPU Emulation is at roughly 75%. This includes x87 and SSE/SSE2. MMX is barely implemented (but barely used anyway).
• x87 emulation is simplified, no real x87 State handling (but should not be mandatory, as the native libm library is used)
• No Signal handling yet
• ELF Loader is crude and probably full of bugs. Also, the initialisation of libraries are defered after all symbols are resolved for now.
• Wrapped libraries include libc, libm, rt, pthread, libdl, dllinux, libasound, GL, GLU, SDL1/mixer/image, SDL2/mixer/image/smpeg, OpenAL/ALUT, libz, libpng16, vorbisfile, x11/xrandr/xxf86vm.
• Most wrapped libraries are still partially implemented ( the SDL1 & GL libraries should be complete).
• Implemented specific mecanism for SDL(1/2) RWops, to be able to used them both in Native and x86 world.
• WorldOfGoo works, but is painfully slow on the Pandora platform (there is too much double math, and lack of JIT).
• FTL works, but sound is broken (issue with thread? asound? or CPU core?)
• Limbo launches but crashes before main menu.