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Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc, X86)
6cd0c5d775
All instructions which may change hflags terminate tb. However, this doesn't work if such an instruction is placed in delay or forbidden slot. gen_branch() clears MIPS_HFLAG_BMASK in ctx->hflags and then generates code to overwrite hflags with ctx->hflags, consequently we loose any execution-time hflags modifications. For example, in the following scenario hflag related to Status.CU1 will not be updated: /* Set Status.CU1 in delay slot */ mfc0 $24, $12, 0 lui $25, 0x2000 or $25, $25, $24 b check_Status_CU1 mtc0 $25, $12, 0 With this change we clear MIPS_HFLAG_BMASK in execution-time hflags if instruction in delay or forbidden slot wants to terminate tb for some reason (i.e. ctx->bstate != BS_NONE). Also, die early and loudly if "unknown branch" is encountered as this should never happen. Backports commit a5f533909e746ca6e534b232fb42c9c6fd81b468 from qemu |
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bindings | ||
docs | ||
include | ||
msvc | ||
qemu | ||
samples | ||
tests | ||
.appveyor.yml | ||
.gitignore | ||
.travis.yml | ||
AUTHORS.TXT | ||
Brewfile | ||
ChangeLog | ||
config.mk | ||
COPYING | ||
COPYING_GLIB | ||
COPYING.LGPL2 | ||
CREDITS.TXT | ||
install-cmocka-linux.sh | ||
list.c | ||
make.sh | ||
Makefile | ||
msvc.bat | ||
pkgconfig.mk | ||
README.md | ||
uc.c | ||
windows_export.bat |
Unicorn Engine
Unicorn is a lightweight, multi-platform, multi-architecture CPU emulator framework based on QEMU.
Unicorn offers some unparalleled features:
- Multi-architecture: ARM, ARM64 (ARMv8), M68K, MIPS, SPARC, and X86 (16, 32, 64-bit)
- Clean/simple/lightweight/intuitive architecture-neutral API
- Implemented in pure C language, with bindings for Crystal, Clojure, Visual Basic, Perl, Rust, Ruby, Python, Java, .NET, Go, Delphi/Free Pascal and Haskell.
- Native support for Windows & *nix (with Mac OSX, Linux, *BSD & Solaris confirmed)
- High performance via Just-In-Time compilation
- Support for fine-grained instrumentation at various levels
- Thread-safety by design
- Distributed under free software license GPLv2
Further information is available at http://www.unicorn-engine.org
License
This project is released under the GPL license.
Compilation & Docs
See docs/COMPILE.md file for how to compile and install Unicorn.
More documentation is available in docs/README.md.
Contact
Contact us via mailing list, email or twitter for any questions.
Contribute
If you want to contribute, please pick up something from our Github issues.
We also maintain a list of more challenged problems in a TODO list.
CREDITS.TXT records important contributors of our project.