I believe MPFR is built directly inside gcc ("one tree style") when
you build the cross-compiler with the RTEMS Source Builder. So it
should "just work" but like Joel said I don't know if anyone has
tested it out.On Tue, Oct 27, 2020 at 2:09 AM BAILLIEZ Damien <damien.baill...@cea.fr> wrote: > > Thank you for your response Joel, you understood me correctly. I will get > right on it then. > > > > Damien > > > > From: Joel Sherrill <j...@rtems.org> > Sent: lundi 26 octobre 2020 17:50 > To: BAILLIEZ Damien <damien.baill...@cea.fr> > Cc: users@rtems.org > Subject: Re: MPFR - RISCV > > > > > > > > On Mon, Oct 26, 2020 at 11:14 AM BAILLIEZ Damien <damien.baill...@cea.fr> > wrote: > > Hi everyone, > > > > I am considering using RTEMS for a project I am working on but I don’t know > if it allows me to do the things I need. > > Is it possible, using RTEMS, to develop and run an application which uses the > MPFR library on a RISCV architecture? I have read many pages on the website > and I have not come across this information. > > > > Just to make sure we are on the same page, I assume you mean MPFR from > https://www.mpfr.org/. > > > > Personally, I don't know anyone who has used it in an application but that > doesn't mean it won't work. It should be largely OS independent and probably > using some assembly for speed here and there. > > > > Given that, I would assume that it can be cross-compiled pretty easily just > by making sure the settings are right. Using the rtems-source-builder, there > should be plenty of examples of building an autoconf based package to target > RTEMS. I picked curl as an example: > > > > ./rtems/config/ftp/curl-7.65.1-1.cfg > ./rtems/config/ftp/curl.bset > ./source-builder/config/curl-1.cfg > > > > The first file gives specific location, hashes and patches needed for a > specific version. > > > > The last has the very specific templated build rules/steps for curl. > > > > The middle file ties them together. > > > > You will need to build and install a BSP to build mpfr against. But adding an > RSB recipe for MPFR shouldn't be difficult and I would expect it to just > build. > > > > --joel > > > > > > Sorry if the info was already out there somewhere and thank you in advance > for any response. > > > > Regards, > > Damien > > _______________________________________________ > users mailing list > users@rtems.org > http://lists.rtems.org/mailman/listinfo/users > > _______________________________________________ > users mailing list > users@rtems.org > http://lists.rtems.org/mailman/listinfo/users _______________________________________________ users mailing list users@rtems.org http://lists.rtems.org/mailman/listinfo/users
