Open Source C Source Code Analysis Tools

CoFlo generates Control-Flow Graphs from C and C++ source code. It can then output the graphs in a number of ways and perform various control flow analyses. NOTE: CoFlo has not been under active development for several years. At this time, I suggest you look into LLVM-based tooling to see if there is anything similar to CoFlo which will meet your needs.

ParTools allows the interactive analysis of a C program execution profile and data dependencies to facilitate the discovery and selection of suitable parallelization candidates in a manual parallelization process. The flow does not assume any specific parallelization technique, thus it can be broadly applied. The original (serial) C source is automatically annotated to trace the execution profile and data dependencies at run-time. The annotated program is then executed using a significant (but small) data set selected by the developer. The data collected is cross-referenced with the original source and can be interactively analyzed graphically to determine the best parallelization candidates and techniques.

OSSDPI is collects information of the open source software. And shows the information that is collected in a variety of ways.