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ATOMIC_REG_SIZE is currently defined as the default sizeof(void *) for all MIPS host builds, including those using the n32 ABI. n32 is the MIPS64 ILP32 ABI and as such tcg/mips/tcg-target.h defines TCG_TARGET_REG_BITS as 64 for n32 builds. If we attempt to build QEMU for an n32 host with support for a 64b target architecture then TCG_OVERSIZED_GUEST is 0 and accel/tcg/cputlb.c attempts to use atomic_* functions. This fails because ATOMIC_REG_SIZE is 4, causing the calls to QEMU_BUILD_BUG_ON(sizeof(*ptr) > ATOMIC_REG_SIZE) in the various atomic_* functions to generate errors. Fix this by defining ATOMIC_REG_SIZE as 8 for all MIPS64 builds, which will cover both n32 (ILP32) & n64 (LP64) ABIs in much the same was as we already do for x86_64/x32. Backports commit c5b00c1684f3317e887c7401b58dde54c2b05354 from qemu |
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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.