#PROJECTS WITH UNICORN ARM EMULATOR DRIVERS#
#PROJECTS WITH UNICORN ARM EMULATOR DRIVER#
#PROJECTS WITH UNICORN ARM EMULATOR FULL#

First, it is the only available free/open source software for full-system emulation and virtualization with an extensive list of supported architectures besides x86/ењ†4 (ARM/AArch64, PPC, Mips, Tricore, Xtensa, вЂ¦). When it comes to emulation features itself, QEMU-based is an obvious first choice. This includes custom stubbing/hooking of code, as we will see in the remainder of this article. We have specifically chosen the API to be simple as it allows to easily build more powerful features on top using scripting capabilities.

Trapping of operations on memory regions (e.g.

Control flow tracing (breakpoints, watchpoints).

Exposure and manipulation of CPU context such as registers.

For the time being we focused on ARM support here, but this approach can be easily transferred to other architectures supported by QEMU. We have implemented this such that each hardware architecture comes with a newly introduced Lua-board, which can be used to interact and source from other native board definitions, while not requiring to modify QEMU core code. We gain flexibility for target prototyping, by being able to completely write board definitions in Lua without native code. The first two properties are almost provided by QEMU out of the box. definition of specific boards) without native code

Ease of long-term maintainability (i.e.

#PROJECTS WITH UNICORN ARM EMULATOR DRIVERS#

Full-system emulation support, including drivers and peripherals, MMU, interrupts, and timers.

When initially evaluating the idea of LuaQEMU, we had the following specific functional requirements: Among other things, this allows fast prototyping of target systems without any native code and minimal effort in Lua. LuaQEMU is a QEMU-based framework exposing several of QEMU-internal APIs to a LuaJIT core injected into QEMU itself. Historically, we have been missing a solution that perfectly fits our needs in practice. It is probably best described as a mixture between a system emulator, a debugger, and a dynamic binary instrumentation framework.

#PROJECTS WITH UNICORN ARM EMULATOR FULL#

Such an emulation environment shall provide capabilities for rapid prototyping on multiple CPU architectures, while providing a flexible API for interacting with binary code, including full system emulation, emulation of specific System on a Chip (SoC) solutions, and support for peripherals. for release gating) or even bring-up development of embedded OS code.

#PROJECTS WITH UNICORN ARM EMULATOR DRIVER#

There are different reasons for this, including availability of physical devices, development time, complexity, but also costs.Д¬omparable scenarios are not only present in the software security world, but equally apply to other engineering roles such as the development of driver code, test code development, bug presence testing (e.g. custom fuzzers, exploit code, debuggers, tracing, вЂ¦), it can be advantageous to deal with an emulated representation of the underlying system instead of physical device. Similarly, when developing for binary components (e.g. For example when reverse engineering embedded solutions such as cellular basebands or custom operating system code, the analysts understanding of a target is often fueled by assisting binary analysis with the ability to look at protocol stacks, operating system tasks, and memory at runtime. When dealing with complex code in firmware, it is often desirable to have some kind of dynamic runtime introspection as well as the ability to modify behavior on the fly.

Projects with unicorn arm emulator