id,summary,reporter,owner,description,type,status,priority,milestone,component,version,resolution,keywords,cc,field_blocks,field_dependson,field_seealso 413,Port GNU Compiler Collection (gcc) to HelenOS,Jakub Jermář,Vojtech Horky,"Port the GNU Compiler Collection to HelenOS. Details:: HelenOS already contains a simple C compiler in the form of the Portable C Compiler (```pcc```) which was ported to it during GSoC 2011. ```pcc``` is sufficient for compiling simple userspace programs under HelenOS/ia32, but unfortunately is not powerful enough to build the entire HelenOS without substantial modifications in places where ```pcc``` does not follow ```gcc``` close enough. Which is worse, ```pcc``` does not support the full range of platforms supported by HelenOS, which makes it a non-starter for the use as the main HelenOS compiler (both cross and native). This last criterion basically leaves us with only ```gcc``` as the only choice for achieving our long-term goal of becoming self-hosting. The goal of this project is to port at least the C compiler part of ```gcc``` to HelenOS. What Gains and Benefits will this bring?:: One of the strategic goals for HelenOS is becoming self-hosting. Since most of the HelenOS code is written in C, having a portable, full-fledged native C compiler is a prerequisite to reaching this goal. Using the same compiler for cross-compilation and building HelenOS from itself is also a benefit of its own. Difficulty:: Medium. The effort will be somewhat easier especially thanks to GSoC 2011 projects that have paved the way for this project by porting GNU binutils and the Portable C Compiler to HelenOS and creating a POSIX-compatibility library. Required skills:: A successful applicant will have good skills of programming in the C language and the ability to survive in a non-standard non-POSIX application environment. The applicant should also be familiar with the basic concepts behind compilers and the build toolchain. Documentation:: - [wiki:DeveloperDocs#Clanguage] - [http://gcc.gnu.org GCC, The GNU Compiler Collection] Possible mentors:: HelenOS Core Team, Jakub Jermar, Jiri Svoboda",enhancement,closed,major,0.6.0,helenos/app/other,mainline,fixed,gsoc12,vivek.cs.iitr@…,,,