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Unicorn CPU emulator framework (ARM, AArch64, M68K, Mips, Sparc, X86)
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C 90%
Python 3.9%
Java 1.5%
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Peter Maydell 5c93f43eb9 target/arm: Implement ARMv8.1-PMU extension 
The ARMv8.1-PMU extension requires:
* the evtCount field in PMETYPER<n>_EL0 is 16 bits, not 10
* MDCR_EL2.HPMD allows event counting to be disabled at EL2
* two new required events, STALL_FRONTEND and STALL_BACKEND
* ID register bits in ID_AA64DFR0_EL1 and ID_DFR0

We already implement the 16-bit evtCount field and the
HPMD bit, so all that is missing is the two new events:
STALL_FRONTEND
"counts every cycle counted by the CPU_CYCLES event on which no
operation was issued because there are no operations available
to issue to this PE from the frontend"
STALL_BACKEND
"counts every cycle counted by the CPU_CYCLES event on which no
operation was issued because the backend is unable to accept
any available operations from the frontend"

QEMU never stalls in this sense, so our implementation is trivial:
always return a zero count.

Backports commit 0727f63b1ecf765ebc48266f616f8fc362dc7fbc from qemu
2020-03-21 18:34:33 -04:00
bindings python: handle UC_ERR_TIMEOUT, so sample_x86.py behaves like sample_x86.c 2020-01-14 09:53:10 -05:00
docs docs: we no longer requires python2 in building 2020-01-14 09:07:44 -05:00
include Timeout error (#1173) 2020-01-14 09:42:57 -05:00
msvc msvc: Define CONFIG_TCG 2019-01-30 13:52:30 -05:00
qemu target/arm: Implement ARMv8.1-PMU extension 2020-03-21 18:34:33 -04:00
samples Timeout error (#1173) 2020-01-14 09:42:57 -05:00
tests Tests, fixes on third platform. (#1168) 2020-01-14 09:45:55 -05:00
.appveyor.yml MSYS test (#852) 2017-06-25 10:11:35 +08:00
.gitignore target/riscv: Initial introduction of the RISC-V target 2019-03-08 21:46:10 -05:00
.travis.yml use new travis osx image and brew (#935) 2018-01-05 10:29:49 +08:00
AUTHORS.TXT import 2015-08-21 15:04:50 +08:00
Brewfile Update Brewfile 2017-09-30 17:36:44 +07:00
ChangeLog update ChangeLog 2017-04-20 13:28:02 +08:00
config.mk Fix document file extension 2016-08-08 17:33:49 +09:00
COPYING import 2015-08-21 15:04:50 +08:00
COPYING.LGPL2 LGPL2 for all header files under include/unicorn/ 2017-12-16 10:08:42 +08:00
COPYING_GLIB glib_compat: add COPYING_GLIB 2016-12-27 10:15:08 +08:00
CREDITS.TXT Adding Philippe Antoine to CREDITS 2018-10-06 04:50:10 -04:00
install-cmocka-linux.sh Start moving examples in S files (#851) 2017-06-25 10:14:22 +08:00
list.c callback to count number of instructions in uc_emu_start() should be executed first. fix #727 2017-06-16 13:22:38 +08:00
make.sh remove broken iOS builds (#1109) 2019-08-08 20:09:05 -04:00
Makefile uc: Restore armeb target 2019-04-19 15:29:25 -04:00
msvc.bat add msvc.bat 2017-04-21 15:35:40 +08:00
pkgconfig.mk bump extra version to 2 2017-04-21 15:30:40 +08:00
README.md add Clojure 2017-12-23 00:32:33 +08:00
uc.c Timeout error (#1173) 2020-01-14 09:42:57 -05:00
windows_export.bat Make the call out to visual studio extremely resilient 2017-01-02 03:32:48 -08:00

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.