Hi, > > > > On 08-Apr-2022, at 6:32 PM, Jan Hubicka <hubi...@kam.mff.cuni.cz> wrote: > > > > Ankur, > >> I was browsing the list of submitted GSoC projects this year and the > >> project regarding bypassing assembler when generating LTO object files > >> caught my eye. > > I apologize for late reply. I would be very happy to mentor this > > project. > > Thanks for the reply, but unfortunately, due to some reasons, I would not > be able to take part in GSoC this year. > But the project seems interesting and would be amazing opportunity to > learn a lot more things for me, so would it be okay if I try to give it a > go outside GSoC if no-one else picks it as their GSoC project this year ?
I would be still very happy to help with that! However it would be also pity to not take part of GSoC, so if there is something I can help with on that let me know. > > >> > >> I already have a gcc built from source (sync-ed with trunk/master) and > >> launched the test-suite on it. > >> > >> I am currently in process of understanding the primilary patch > >> (https://gcc.gnu.org/legacy-ml/gcc/2014-09/msg00340.html), and > >> experimenting with it. > >> > >> are there any other things I should be aware of (useful Doc/blog or a > >> bug tracking the project) before proceeding further ? > > > > I think it is pretty much all that exists. Basically we will need to > > implement everything that is necessary to stream out valid object file > > directly from GCC rather than going through gas. The experimental > > prototype sort of worked but it was lacking few things. > > When I try to apply that patch on my local branch ( branched from trunk ), > it seem to be incompatible with the current working tree. Is there a > specific branch that I have to apply it to ? or is it due to the recent > file rename patch ( changing extensions from .c to .cc ) ? > > ``` > $ git apply --check bypass_asm_patch > > error: patch failed: Makefile.in:1300 > error: Makefile.in: patch does not apply > error: common.opt: No such file or directory > error: langhooks.c: No such file or directory > error: lto/Make-lang.in: No such file or directory > error: lto/lto-object.c: No such file or directory > error: lto/lto.c: No such file or directory > error: lto/lto.h: No such file or directory > error: lto-streamer.h: No such file or directory > error: toplev.c: No such file or directory > ``` I can try to update the patch, or it probably should apply to trunk checked out around the date I sent the patch. Indeed we need to change c to cc but there are likely more changes since then - most importnatly the early debug info. At I will see how easy/hard is to make the patch build with current trunk. Honza > > Thanks > - Ankur >
