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Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc, X86)
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Python 3.9%
Java 1.5%
Visual Basic 6.0 0.8%
Pascal 0.8%
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Peter Maydell 5aa5ebbcc9
target/arm: Remove can't-happen if() from handle_vec_simd_shli() 
In handle_vec_simd_shli() we have a check:

if (size > 3 && !is_q) {
    unallocated_encoding(s);
    return;
}

However this can never be true, because we calculate
int size = 32 - clz32(immh) - 1;
where immh is a 4 bit field which we know cannot be all-zeroes.
So the clz32() return must be in {28,29,30,31} and the resulting
size is in {0,1,2,3}, and "size > 3" is never true.

This unnecessary code confuses Coverity's analysis:
in CID 1396476 it thinks we might later index off the
end of an array because the condition implies that we
might have a size > 3.

Remove the code, and instead assert that the size is in [0..3],
since the decode that enforces that is somewhat distant from
this function.

Backports commit f6c98f91f56031141a47f86225fdc30f0f9f84fb from qemu
2018-11-11 08:37:16 -05:00
bindings bindings/README: Add D bindings 2018-10-06 04:51:47 -04:00
docs
include cpu: Convert cpu_index into a bitmap 2018-03-21 08:06:07 -04:00
msvc Makefile: Rename TARGET_DIRS to TARGET_LIST 2018-06-08 19:22:45 -04:00
qemu target/arm: Remove can't-happen if() from handle_vec_simd_shli() 2018-11-11 08:37:16 -05:00
samples Fuzz 2018-10-06 04:49:11 -04:00
tests Fuzz builds ok 2018-10-06 04:55:02 -04:00
.appveyor.yml
.gitignore qapi: Move qapi-schema.json to qapi/, rename generated files 2018-03-09 11:35:11 -05:00
.travis.yml
AUTHORS.TXT
Brewfile
ChangeLog
config.mk
COPYING
COPYING_GLIB
COPYING.LGPL2
CREDITS.TXT Adding Philippe Antoine to CREDITS 2018-10-06 04:50:10 -04:00
install-cmocka-linux.sh
list.c
make.sh
Makefile Fuzz 2018-10-06 04:49:11 -04:00
msvc.bat
pkgconfig.mk
README.md
uc.c i386: Fix initialization of x86 targets 2018-09-03 09:14:35 -04:00
windows_export.bat

README.md

Unicorn Engine

Join the chat at https://gitter.im/unicorn-engine/chat

Build Status Build status

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.