Abstract: A software only debug approach is provided that does not require special hardware in a target embedded system undergoing debug. Instead, already present DMA capabilities of the target system are utilized to transfer I/O operation parameters into a memory area accessible to both the target processor and a debugger executing on a host system. The debugger can thereby access and execute the I/O operations without program execution stopping on the target. A semihosting library is provided as a replacement for the standard C I/O library on the target. The semihosting library provides a range of equivalent functions to the standard C I/O API that program a DMA transfer to copy the I/O function parameters to an external memory area that is not otherwise being used by the target core processor. The external memory area is then accessed by a debug tool on the host computer.

Abstract: A software only debug approach is provided that does not require special hardware in a target embedded system undergoing debug. Instead, already present DMA capabilities of the target system are utilized to transfer I/O operation parameters into a memory area accessible to both the target processor and a debugger executing on a host system. The debugger can thereby access and execute the I/O operations without program execution stopping on the target. A semihosting library is provided as a replacement for the standard C I/O library on the target. The semihosting library provides a range of equivalent functions to the standard C I/O API that program a DMA transfer to copy the I/O function parameters to an external memory area that is not otherwise being used by the target core processor. The external memory area is then accessed by a debug tool on the host computer.

Abstract: A method, system, and apparatus are provided for debugging a compiled computer program having one or more variables by generating variable location information for a first variable stored in a CPU register that is parsed from runtime disassembly information for the compiled computer program and used to generate a pattern to search for the first variable in the runtime disassembly information to identify a program address for the first variable that can be used to set a software program watchpoint for the first variable.

Abstract: A method, system, and apparatus are provided for debugging a compiled computer program having one or more variables by generating variable location information for a first variable stored in a CPU register that is parsed from runtime disassembly information for the compiled computer program and used to generate a pattern to search for the first variable in the runtime disassembly information to identify a program address for the first variable that can be used to set a software program watchpoint for the first variable.