Hello, GCC is well into stage 1 for GCC 4.8, but I haven't seen any proposals for targets to be deprecated. I have one I would like to put on the list, so here's something to start a discussion with:
Deprecate all support for 32-bits HP-PA. This includes HP-UX10, and PA-7000 and older. To name a few reasons: 1. Support for the last production release (HP-UX 10.20) ended on June 30, 2003. That will be 10 years ago by the time GCC 4.9 will be released. The only target architecture supported for HP-UX 10 is HP-PA. I think it's reasonable to assume that most users of HP-UX10 on machines with PA-RISC 2.0 support will have upgraded to HP-UX 11.11 or later. 2. HP-UX 10 is also the last target that only supports SJLJ exceptions. 3. The PA-7000 series only run HP-UX 10 or earlier, so support for HP-7000 and older is pointless without HP-UX10 support. 4. 32-bits HP-PA uses the SOM binary object format, i.e. it is a non-ELF target (64-bits HP-PA is ELF). Removing support for anything older than PA-8000 results in a considerable cleanup for the PA architecture: ~3300 lines out of ~23000, estimated by cleaning all "!TARGET_64BIT" and "TARGET_PA_11" patterns in pa.md and pa.c, and most of the cleanups to remove support for SOM objects. The resulting PA port would support HP-UX11 on 64bits PA-RISC 2.0 (i.e. HP-PA8xxx). It's hard enough to maintain HP-UX11 support on HP-PA. With this cleanup, the job would become a bit simpler. Thoughts/comments? Ciao! Steven
