unicorn

This is a small release to complement the previous 2.0.1 release.

Fix:

• Fix the endianness detection in tests.
• Fix the version number in CMakeLists.txt.

Unicorn2 makes the first step to Debian packages and vcpkg! Thanks @roehling and @LilyWangL !

Features:

• Support building & running on BE hosts. #1710
• Fix and support clang-cl on Windows. #1687
• Fix python sdist and add aarch64 Linux wheels. Note pip can build Unicorn2 on M1 now!
• C# binding is refined and upgraded to .Net 6. #1723

Fix/Improvements:

• Various bindings improvements. #1723
• Improvements for tests. #1684 #1683 #1691 #1711
• Fail explicitly when VEX.L is set. #1658
• Fix endianness when writing PPC32 CR register. #1659
• Fix a bug in uc_ctl_set_cpu_model check.
• Fix Tricore PC not updating. #1668
• Fix the mapping not updated if users modify the mappings in the hooks.
• Handle pathological cases consistently. #1651
• Fix memory leaks in PPC target. #1680
• Fix memory leaks in Tricore target. #1681
• Fix MSVC handling in cmake. #1693
• Fix PC sync-ing problems for UC_HOOK_BLOCK hooks.
• Fix PC sync-ed twice when users request a soft restart.
• Prevent overflow with pre-allocated RAM blocks. #1712
• Add FPCR and FPSR registers #1722
• Fix ARM CPU state not deep copied.
• Fix PC not sync-ed for memory operation on aarch64.
• Exit invalid store operations early to avoid the target registers being overwritten.
• Improve the support for ARM BE32.

Thanks:

@roehling @LilyWangL @mrexodia @zachriggle @Yu3H0 @rhelmot @relapids @sh4w1 @TSRBerry

Features:

• TriCore Support (#1568)

Fixes/Improvements:

• Build both shared library and static archive as unicorn1 does.
• Misc bindings improvements. #1569 #1600 #1609 #1613 #1616
• Make sure setjmp-setjmp-wrapper-win32 participates in the build. #1604
• Improve Rust bindings build logic.
• Fix wrong python binding for UC_CTL_TB_REMOVE_CACHE
• Flush translation blocks when the count hook is removed.
• Fix unicorn crash when nested uc_emu_start deletes a hook
• Fix CPU not fully resumed when writing PC.
• Don't quit TB if uc_mem_protect doesn't change the protection of current TB memory.
• Add type annotations for python bindings.
• Add CPUID hook for python bindings. #1618
• Don't repeat memory hooks if there is already an unhandled error. #1618
• Support reads and writes over all Arm SIMD registers #1621
• Fix wrong registers range in python bindings.
• Fix uc_mem_protect on mmio regions
• Fix a UAF caused by hook cache.
• Fix the value collision between UC_MODE_ARMBE8 and UC_MODE_ARM926

Thanks:

@AfoHT @mrexodia @bet4it @lowlyw @ekilmer @ondryaso @QDucasse @PalumboN @uberwoozle

This release is expected to be the real last RC release of Unicorn2. ;)

Features:

• Correctly generate static archives for the static build and have CI auto-tested.
• Rust bindings revised. #1584
• Compatible with clang-cl compiler. #1581
• Implement UC_HOOK_INSN for aarch64 MRS/MSR/SYS/SYSL

Fixes/Improvements:

• Several corner cases on our API. #1587 #1595
• Fix the codegen buffer leak.
• Rust bindins improvements. #1574 #1575
• Add "holes" to allow unicorn lib as a drop-in replacement for older ones. #1572
• s390x backports. #1570
• Fix exits wrongly removed in nested uc_emu_start
• Fix a possible endless loop for only one translation block in a multithreaded environment.
• Fix wrong PC without UC_HOOK_CODE installed.
• Update vb6 bindings license. #1563
• Fix buffer allocation failure on M1. #1559
• Fix wrong EFLAGS on startup.
• Fix wrong internal states on nested uc_emu_start.
• Remove armeb-softmmu and aarcheb-softmmu which are usermode targets.
• Advance PPC32 PC. #1558
• Support UC_PPC_REG_CR.
• Update CI to windows-2019

Thanks:

@shuffle2 @liyansong2018 @rose4096 @nviennot @n1tram1 @iii-i @dzzie @yrashk @bet4it

This release is expected to be the last RC release of Unicorn2.

Features:

• SystemZ (aka. s390x) support. #1521 #1547
• CPUID hook now may return a bool to indicate whether skipping the CPUID instruction.
• ARM/AARCH64 coprocessor registers read/write support. #889

Fixes/Improvements:

• Rust improvements. More registers enums #1504 Easier to use #1543 #1545
• M68k improvements. #1507
• Golang improvements. Enable uc_ctl_set_model #1506
• Unit tests improvements. #1512
• Various ARM system mode fixes. #1500 #1520 #1525 #1531
• Read/write arm FPSCR and FPSID. #1453
• Fix the support for ARMv8
• Fix a large number of memory leaks and unicorn2 now goes with google/oss-fuzz!
• Add more X87 registers. #1524
• Add more PPC registers.
• Fix the exception not cleared in python bindings. #1537
• Correctly support ARM big endian and drops armeb-softmmu and aarch64eb-softmmu
• Fix ARM CPSR.E not reflected during runtime.
• Resolve fuzzing speed problem on macOS.
• Modernize CmakeFileLists.txt. #1544
• Fix an issue in nested uc_emu_start

Thanks:

@Kritzefitz @zznop @QDucasse @gerph @bet4it @mrexodia @iii-i @jbcayrou @scribam

This release fixes a few urgent bugs and improves performance.

Fixes/Improvements:

• Rust bindings improvements. #1480 #1483
• Allow R/W to cp15 registers. #1481
• Fix UC_HOOK_EDGE_GENERATED not calling for indirect jumps.
• Python bindings build improvements. #1486
• Fix bindings on m1 macOS.
• Support nested uc_emu_start calls without context save/restore
• Fix wrong MMIO offset for 32bit targets.
• Fix wrong uc_mem_unmap logic for both ram and mmio memory.
• Inline uc_trace_code and PC sync to improve performance.
• Various fixes in tests.
• Allow writing to CPSR to switch bank registers.
• Implement MMIO in rust bindings. #1499

Thanks:

• @domenukk
• @bet4it
• @mid-kid
• @Kritzefitz

This is a big release of Unicorn and introduces a few powerful new features and a bunch of fixes.

New Features:

• New API: uc_ctl, by which you could control CPU models, TB caches or multiple exits etc.
• New Hook: UC_HOOK_EDGE_GENERATED, UC_HOOK_TCG_OPCODE
• RISCV CSR read/write.
• Support reading MIPS hi/lo regs. 7268c2a19bce2db72b90e3ea3b133482c3ff4e58
• OSS Fuzzing building support.
• MSVC 32bit and Android build support.
• Introduce clang-format.

Fixes/Improvements:

• Java bindings improvements. unicorn-engine/unicorn#1461
• API Documents updates. unicorn-engine/unicorn#1459
• Rust bindings improvements. unicorn-engine/unicorn#1462
• Add a go.mod for go bindings.
• CMakeLists.txt improvements as a subproject. #1373
• Fix rust bindings build script and add CI.
• Use binary search to find mappings. unicorn-engine/unicorn#1414
• RISCV:
  • Update pc when exiting execution. unicorn-engine/unicorn#1465
  • Add RISCV control status registers to enable floating. unicorn-engine/unicorn#1469 unicorn-engine/unicorn#1478
  • After ecall, pc not advanced. unicorn-engine/unicorn#1477
• Fix tb not invalidated when exiting.
• Fix bindings makefile.
• Fix uc_mem_protect not working. unicorn-engine/unicorn#1468

Thanks:

• @bet4it
• @kabeor
• @chfl4gs
• @QDucasse
• @h33p
• @geohot
• @cla7aye15I4nd
• @jcalabres

This is an urgent pre-release regarding python bindings on older Linux systems.

• Support older Linux distribution, e.g. prior to Ubuntu 19.04
• Fix a memory leak in uc_close
• Support building on Android
• Support hooking CPUID instruction.

Enjoy.

This is an urgent pre-release regarding the packaging problem of python bindings.

• Set zip_false and is_pure to False to avoid issues on some Linux distributions.
• Link to libm to make sure our libraries work.
• Support to read ST registers in rust bindings.
• Fix #1450

Enjoy.

Unicorn2 first release candidate!

• Based on Qemu 5.0.1
• Remain backward compatible with Unicorn 1.x
• Update ISA of all existing architectures
• Support 2 new architectures in PowerPC & RISCV

• Fix some building issues

  • Fix build with LLVM on Powerpc64(le)
  • cmake: enable UNICORN_HAS_ARMEB when ARM is on
  • Better support MingW building
  • Better support FreeBSD host
    • Better support VS2008/VS2010

• Fix some issues in the core

  • Fix wrong sync after UC_ERR_[READ, WRITE, FETCH]_[UNMAPPED, PROT]
  • Support querying architecture mode besides arm
  • Fix pausing within Thumb2 ITE blocks

• Arm:

  • Support Arm BE8 mode

• X86:

  • Fix FPIP & FTST instructions

• Bindings:

  • Java: remove deprecated javah and build with javac
  • Python: handle exceptions raised in hook functions
  • Rust binding

• Fix Java binding compilation
• Enable building for ARM little-endian only (ignore big-endian)

• Add uc_context_free() API
• Fix context saving/retoring API (core & Python binding)

• Add cmake option to build Unicorn as a static library
• Fix error handling of mmap()
• uc_emu_start() can be reentrant
• Fix naming conflicts when built with systemd
• Fix setjmp/longjmp on native Windows
• Fix enabled hooks even after deleting them
• X86:
  • Fix 64bit fstenv
  • Fix IP value of 16bit mode
• ARM:
  • Fix APSR handling
• Python: Remove UC_ERR_TIMEOUT

This version fixes some issues and improves over v1.0.2-rc3.

• No longer require Python to build
• Fix recursive UC_HOOK_MEM callbacks for cross pages access
• Remove UC_ERR_TIMEOUT, so timeout on uc_emu_start() is not considered error
• Added UC_QUERY_TIMEOUT to query exit reason
• Fix UAF when deleting hook while in hook callback
• Ensure that hooks are unaffected by a request to stop emulation.
• Fix block hooks being called twice after an early exit from execution.
• Fix binding install on python2 (MacOS)
• X86:
  • Support read/write STn registers
  • Support read/write X64 base regs
• ARM64:
  • Support some new registers

Bugfixes since RC2

lots of bug fixes & improvement since v1.0.1

Stable release with some important bugfixes & new features for several architectures.

• Properly handle build with selected-architectures.
• Fix compilation issues on PPC & S390x.
• Fix a memory leak on uc_mem_protect().
• ARM:
  • Support big-endian mode.
  • Correct instruction size of Thumb/Thumb2 code.
  • Support read/write APSR register.
• ARM64:
  • Support read/write NEON registers.
  • Support read/write NZCV registers.
• Mips: Support read/write Mips64 registers.
• X86: Support read/write MSR.
• Haskell binding: update to the latest API.
• Python: allow not having PATH setup.

Unicorn Engine v1.0.

Important changes since v1.0-RC3:

• Fix build script for BSD host.
• Fix building Unicorn on Arm/PPC/Sparc/S390 hosts.
• X86:
  • Fix 16bit address computation.
  • Fix initial state of segment registers.