diff options
Diffstat (limited to 'baserock/strata/build-essential/stage2-glibc.morph')
-rw-r--r-- | baserock/strata/build-essential/stage2-glibc.morph | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/baserock/strata/build-essential/stage2-glibc.morph b/baserock/strata/build-essential/stage2-glibc.morph new file mode 100644 index 00000000..f44d0ebb --- /dev/null +++ b/baserock/strata/build-essential/stage2-glibc.morph @@ -0,0 +1,103 @@ +name: stage2-glibc +kind: chunk + +configure-commands: +- mkdir o + +# Configure flag notes: +# 1. Avoid installing to PREFIX/lib64 on x86_64. +# 2. Location of linux-api-headers. +# 3. Normal flags. See glibc.morph. +# 4. Force configuration values of certain things that can't be detected +# in a cross-compile. +- | + case "$MORPH_ARCH" in + armv7*) + ARCH_FLAGS="--without-fp" ;; + esac + + export CFLAGS="-O2 $CFLAGS"; export CXX=false; \ + cd o && ../configure \ + $ARCH_FLAGS \ + --build=$(../scripts/config.guess) --host=$TARGET_STAGE1 \ + --prefix="$PREFIX" \ + `# [1]` --libdir="$PREFIX/lib" \ + `# [2]` --with-headers="$(pwd)/../../$PREFIX/include" \ + `# [3]` --disable-profile --enable-kernel=2.6.25 \ + `# [4]` libc_cv_c_cleanup=yes libc_cv_ctors_header=yes \ + libc_cv_forced_unwind=yes libc_cv_ssp=no + +build-commands: +- cd o && make localtime=UTC + +install-commands: +- cd o && make install_root="$DESTDIR" localtime=UTC install +- mkdir -p "$DESTDIR/etc" +- mkdir -p "$DESTDIR/etc/ld.so.conf.d" +- | + cat <<EOF > ld.so.conf + /lib + /usr/lib + /usr/local/lib + include /etc/ld.so.conf.d/*.conf + EOF +- install -m 644 -o root -g root ld.so.conf "$DESTDIR/etc/ld.so.conf" +- | + # Fix up GCC to handle the sysroot containing glibc being in a different + # location for each chunk build. + # + # For headers, it's enough to pass -B in the CPPFLAGS. This would work for + # the startup files (crt*.o) as well, except where libtool is involved (in + # which case it strips -B out of your LDFLAGS before calling GCC). We get + # around this by making GCC locate them relative to the environment variable + # STAGE2_SYSROOT, which we can then set along with CPPFLAGS in each stage 2 + # chunk build. + # + # We also force the use of the program loader at PREFIX/lib/ld.so instead + # of its usual home in /lib or /lib64, which is necessary for the output of + # stage 2 to work as a chroot when building stage 3. + + sysroot="$(dirname "$(pwd)")" + specs_dir="$(dirname $($TARGET_STAGE1-gcc --print-libgcc-file-name))" + target_specs_dir="$DESTDIR/${specs_dir#$sysroot}" + mkdir -p "$target_specs_dir" + + $TARGET_STAGE1-gcc -dumpspecs | + sed -e "s@[gMS]\?crt[1in].o%s@%:getenv(STAGE2_SYSROOT $PREFIX/lib/&)@g" \ + -e "s@/lib\(64\)\?/ld@$PREFIX/lib/ld@g" \ + > "$target_specs_dir/specs-for-sysroot" + + # NASTY HACK # + # We create a symlink to the actual specs here, so that later the + # symlink can be replaced with a dangling link. + # + # This is necessary as we need to have gcc use its internal specs, + # which can differ to the specs generated by `gcc -dumpspecs`. + # + # The dangling symlink will not make it onto the final system, just + # like all other bootstrap only components. + ln -s specs-for-sysroot "$target_specs_dir/specs" + +# Install a symlink for the program interpreter (ld.so) so that binaries +# built in stage 3 before the stage 3 glibc is built can use it. +# FIXME: get a better way of finding the name of the loader. The lib64 +# path is hardcoded into glibc in the file +# sysdeps/unix/sysv/linux/configure. +- install -d $DESTDIR/lib +- | + cpu=$(echo $TARGET | cut -d '-' -f 1) + case "$cpu" in + x86_64) + install -d "$DESTDIR/lib64" + ln -s "$PREFIX/lib/ld-linux-x86-64.so.2" \ + "$DESTDIR/lib64/ld-linux-x86-64.so.2" ;; + ppc64) + install -d "$DESTDIR/lib64" + ln -s "$PREFIX/lib/ld64.so.1" \ + "$DESTDIR/lib64/ld64.so.1" ;; + *) + loader=$(basename $(ls "$DESTDIR$PREFIX"/lib/ld-linux*)) + [ -z $loader ] && loader=$(basename $(ls "$DESTDIR$PREFIX"/lib/ld.so*)) + [ -z $loader ] && ( echo "Bug in stage2-glibc ld.so symlinks" ; exit 1 ) + ln -s "$PREFIX/lib/$loader" "$DESTDIR/lib/$loader" + esac |