debugging functions and capabilities in system software ppt

#Debugging functions and capabilities in system software ppt code

The Debugger is seamlessly integrated with other tools within MULTI and can be invoked by clicking inside various MULTI tools such as the History viewer. TimeMachine is used, it can even run backward in time.

#Debugging functions and capabilities in system software ppt code

The MULTI Debugger is a powerful tool for examining, monitoring, and changing source code running on complex heterogenous multicore target processors and simulators. Run-time error checking identifies problems such as invalid memory accesses through pointers, out-of-range value assignments, unhandled cases in switch statements, and division by zero. With run-time error checking, you’re alerted to the cause of the problem when it happens. Bugs due to memory corruption are especially heinous and difficult to find, and can remain silent for a long time.

Run-time Error Checking complements DoubleCheck by finding bugs that cannot be identified by static analysis alone. Moreover, DoubleCheck is more reliable than traditional code reviews and can find bugs that may never show up during regular system testing. Since it’s part of the compilers, DoubleCheck runs much faster than traditional static analysis tools and that means that every developer can have it turned on all the time.

Simply set an option and DoubleCheck automatically reviews source code each time it’s compiled. Because DoubleCheck is part of the Green Hills optimizing compilers, there’s no setup hassle, and minimal overhead to use it.

Debug Snapshot saves a debugging session that you can easily share with coworkersĭoubleCheck, Green Hills Software’s integrated static source code analyzer, saves you time and money by identifying programming errors before running your program.

TimeMachine uses trace data so you can run, step, and analyze back-in-time in the Debugger.

History viewer shows you how the program got to the current state and what the system was doing.

The MULTI Debugger includes three powerful capabilities: MULTI enables developers to quickly pinpoint problems caused by memory corruption, unintended dependencies, unexpected interrupts, multicore complexity, inter-task corruptions, opaqueness from missing source code or virtualization, missed real-time requirements, and asynchronous hardware events … just to name a few. In complex systems, the most time-consuming bugs are sporadic, hidden and not evident with code inspection. With MULTI, problems that once took days, weeks, or months are found and fixed in hours or even minutes. Software and workloads used in performance tests may have been optimized for performance only on Intel microprocessors.In complex real-time systems, unexpected time spent on hunting for sporadic and deeply buried bugs or finding performance bottlenecks can take weeks or even months, potentially risking an on-time product launch. This operating system-aware debug over JTAG helps with visualizing operating system-specific information, such as processes or threads that are currently running, process- or thread-specific stack traces, registers, and a variables view. Operating System AwarenessIncorporating kernel activities (such as task lists and loaded modules) into the active debug process helps users understand the system and accelerates bug-fixing cycles.By enabling operating system awareness, a developer can debug the operating system that runs on the processor cores as well as the processes or threads that simultaneously run on the operating system. Instead of using an assembly language mixed with binary addresses, symbolic information provides deep insight into functions, addresses, registers, breakpoints, modules, call stacks, and more, to fix a crashing application or any other fault.

It enables debugging applications, the Unified Extensible Firmware Interface (UEFI) specification, or operating system kernels with source code and symbol information to identify the cause of a crash.