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Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc, X86)

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Paolo Bonzini 71beea204c exec: avoid possible overwriting of mmaped area in qemu_ram_remap It is not necessary to munmap an area before remapping it with MAP_FIXED; if the memory region specified by addr and len overlaps pages of any existing mapping, then the overlapped part of the existing mapping will be discarded. On the other hand, if QEMU does munmap the pages, there is a small probability that another mmap sneaks in and catches the just-freed portion of the address space. In effect, munmap followed by mmap(MAP_FIXED) is a use-after-free error, and Coverity flags it as such. Fix it. Backports commit f18c69cfc554cf9776eb3c35b7510e17541afacb from qemu		2018-02-18 19:09:37 -05:00
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README.md

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

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.