On Sun, Jun 10, 2018 at 12:49:44PM +0530, sameeran joshi wrote: > Hi all,I have been figuring out to work on some project,so while searching > I found fuzzer implementation project quite interesting,so please can I > get some information and links about the extension of fuzzer project for > gcc . > Can anyone help me please.
Hi, The deadline for the Google Summer of code project this year has already passed, so at least for this year it's not possible as a paid project. However if you're still interested in working on it outside of SoC you're welcome of course. The basic project is to extend an existing C language fuzzer, such as https://embed.cs.utah.edu/csmith/ or https://github.com/intel/yarpgen to cover gcc language extensions, run it against the compiler and report compiler crashes it finds. For a description of the gcc language extensions please see https://gcc.gnu.org/onlinedocs/gcc-8.1.0/gcc/#toc-Extensions-to-the-C-Language-Family In addition there are other extensions, such as OpenMP, or the transactional memory extensions. https://www.openmp.org/specifications/ https://gcc.gnu.org/wiki/TransactionalMemory Tasks: - Investigate the documentation of some extensions and understand their scope Pick a reasonable set to implement. For a short term project this could be one or more simple extensions, or for a longer project this could be a subset of a complex extension, such as a OpenMP - Investigate the chosen extensions the code base of one the fuzzers - Run fuzzing against the compiler - See if it crashes the compiler or generates invalid output - Investigate bug reports to see if they are not malformed - Submit bugs The main challenge of the project is to understand some extensions well enough that you can implement a fuzzer and implement them in a way that the resulting randomly generated code is not malformed. -Andi
