ChibiOS/RT is a compact and fast RTOS designed for embedded applications. It offers threads, mutexes, semaphores, messages, events, timers, flexible I/O with timeout capability. ARM7, Cortex-M3, AVR, MSP430 and x86 are currently supported.
S2E is a platform for writing tools that analyze the properties and behavior of software systems. S2E is a virtual machine augmented with symbolic execution. Users install and run an unmodified x86 software stack in S2E, including programs, libraries, the OS kernel, and drivers. Symbolic execution
... [More] then automatically explores hundreds of thousands paths through the system, allowing users to check desired properties even in corner-case situations. Unlike existing analysis tools, S2E does not require to write code in special languages or model the environment. [Less]