Re: [gentoo-alt] RAP on ppc64 (SLES11.1)

[X dej]

Thanks for reporting all these !

X dej

2017-01-24 23:08 UTC+01:00, François Bissey <francois.bissey@×××××××××××××.nz>:
> Hi all,
>
> I now have a working RAP environment on ppc64.
> So here is a bit of recipe to achieve this:
> * There is no current ppc64 profile, so one has to be
> created during stage 1.
> I copied the ppc64 from prefix/linux to prefix/linux-standalone.
> Replace make.default inside prefix/linux-standalone/ppc64
> by the one in prefix/linux-standalone/amd64.
> Copy the "legacy" folder from  prefix/linux-standalone/amd64
> to prefix/linux-standalone/ppc64.
>
> * Make sure help2man is installed on the host system (for bison).
>
> * I would like the following patch to be considered
> for the bootstrap script
> --- bootstrap-rap.sh.orig       2017-01-24 12:20:27.304355158 +1300
>
>
> +++ bootstrap-rap.sh    2017-01-24 12:34:30.325185905 +1300
>
>
> @@ -1382,8 +1382,8 @@
>
>
>                  sys-libs/ncurses
>
>
>                  sys-libs/readline
>
>
>                  app-shells/bash
>
>
> -               sys-apps/sed
>
>
>                  app-arch/xz-utils
>
>
> +               sys-apps/sed
>
>
>                  sys-apps/gentoo-functions
>
>
>                  sys-apps/baselayout-prefix
>
>
>                  dev-libs/libffi
>
>
> @@ -1511,10 +1511,12 @@
>
>
>
>
>
>          if is-rap ; then
>
>
>                  # We need ${ROOT}/usr/bin/perl to merge glibc.
>
>
> +               PERL_NOT_INSTALLED=0
>
>
>                  if [[ ! -x "${ROOT}"/usr/bin/perl ]]; then
>
>
>                          # trick "perl -V:apiversion" check of
> glibc-2.19.
>
>                          echo -e "#!${ROOT}/bin/sh\necho
> 'apiversion=9999'" > "${ROOT}"/usr/bin/perl
>
>                          chmod +x "${ROOT}"/usr/bin/perl
>
>
> +                       PERL_NOT_INSTALLED=1
>
>
>                  fi
>
>
>                  # Tell dynamic loader the path of libgcc_s.so of stage2
>
>
>                  if [[ ! -f "${ROOT}"/etc/ld.so.conf.d/stage2.conf ]];
> then
>
> @@ -1532,11 +1534,12 @@
>
>
>
>
>
>                  BOOTSTRAP_RAP=yes \
>
>
>                  emerge_pkgs --nodeps "${pkgs[@]}" || return 1
>
>
> -               rm "${ROOT}"/usr/bin/perl
>
>
> +               # Do not mindlessly remove perl. Only if it wasnt
> present in the first place.
>
> +               [[ ${PERL_NOT_INSTALLED} == 1 ]] && rm
> "${ROOT}"/usr/bin/perl
>
>          else
>
>
>                  pkgs=(
>
>
> -                       sys-apps/sed
>
>
>                          app-arch/xz-utils
>
>
> +                       sys-apps/sed
>
>
>                          sys-apps/gentoo-functions
>                          sys-apps/baselayout-prefix
>                          sys-devel/m4
>
> The latest version of sed is compressed with xz which
> means the bootstrap will fail if xz-utils is not installed
> in /bin or /usr/bin.
> Newer distro probably have it but not older ones.
> So we should move xz-utils before sed.
>
> The other part of the patch is specific to RAP and is
> vexing. RAP adds a fake perl executable before building
> glibc in case perl is not already there - and remove it,
> unconditionally. So you are here you had a failure in stage3
> after glibc has been merged and then perl has been merged.
> You fixed whatever needs fixing and restart the bootstrap
> and it removes your perl binary. And then you spend some
> time wondering why autoconf failed while emerging something.
> So I added a guard - only remove the perl executable if it is
> the fake one. I guess that could be improved by actually
> checking the file itself for the content of the fake perl.
>
> * As per another post the current bits to set the RAP glibc
> to be used by gcc are not sufficient for ppc64. My profile.bashrc
> has the following
> if [[ ${CATEGORY}/${PN} == sys-devel/gcc && ${EBUILD_PHASE} == configure
> ]]; then
>      cd "${S}"
>      einfo "Prefixifying dynamic linkers..."
>      for h in gcc/config/*/*linux*.h; do
>          ebegin "  Updating $h"
>          sed -i -r "/_DYNAMIC_LINKER/s,([\":])(/lib),\1${EPREFIX}\2,g" $h
>          eend $?
>      done
>
>
> The only change being to the sed line.
>
> Francois
>
>