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-rw-r--r--stage2-eglibc-fix-specs18
-rw-r--r--stage2-eglibc.morph2
-rw-r--r--stage2-reset-specs.morph21
3 files changed, 37 insertions, 4 deletions
diff --git a/stage2-eglibc-fix-specs b/stage2-eglibc-fix-specs
index 82e292036..fec0d08d0 100644
--- a/stage2-eglibc-fix-specs
+++ b/stage2-eglibc-fix-specs
@@ -16,11 +16,23 @@
set -eu
+sysroot="$(dirname "$(pwd)")"
specs_dir="$(dirname $($TARGET_STAGE1-gcc --print-libgcc-file-name))"
-mkdir -p "$specs_dir"
+target_specs_dir="$DESTDIR/${specs_dir#$sysroot}"
+mkdir -p "$target_specs_dir"
-$TARGET_STAGE1-gcc -dumpspecs | \
+$TARGET_STAGE1-gcc -dumpspecs |
sed -e "s@[gMS]\?crt[1in].o%s@%:getenv(STAGE2_SYSROOT $PREFIX/lib/&)@g" \
-e "s@/lib\(64\)\?/ld@$PREFIX/lib/ld@g" \
- > "$specs_dir/specs"
+ > "$target_specs_dir/specs-for-sysroot"
+# NASTY HACK #
+# We create a symlink to the actual specs here, so that later the
+# symlink can be replaced with a dangling link.
+#
+# This is necessary as we need to have gcc use its internal specs,
+# which can differ to the specs generated by `gcc -dumpspecs`.
+#
+# The dangling symlink will not make it onto the final system, just
+# like all other bootstrap only components.
+ln -s specs-for-sysroot "$target_specs_dir/specs"
diff --git a/stage2-eglibc.morph b/stage2-eglibc.morph
index 85b448533..8041821a0 100644
--- a/stage2-eglibc.morph
+++ b/stage2-eglibc.morph
@@ -31,7 +31,7 @@ build-commands:
install-commands:
- cd o && make install_root="$DESTDIR" localtime=UTC install
- - install -m 755 stage2-eglibc-fix-specs $DESTDIR$PREFIX/bin
+ - sh stage2-eglibc-fix-specs
# Install a symlink for the program interpreter (ld.so) so that binaries
# built in stage 3 before the stage 3 eglibc is built can use it.
diff --git a/stage2-reset-specs.morph b/stage2-reset-specs.morph
new file mode 100644
index 000000000..387ef835d
--- /dev/null
+++ b/stage2-reset-specs.morph
@@ -0,0 +1,21 @@
+name: stage2-reset-specs
+kind: chunk
+
+# Nasty hack to get around being unable to reliably add configuration to gcc,
+# hence the gcc specs are modified, combined with Baserock's rootfs protection
+# preventing specs being modified before builds.
+# The limitation is overcome by installing files as part of a chunk, which
+# overwrites previous files.
+# New specs were added for the bootstrap builds, but after stage2 we start
+# having chrooted builds, so the old specs need to be replaced.
+# Unfortunately we can't just replace the specs with the ones gcc produces,
+# since gcc behaves differently without specs to with specs it produces!
+# So we use a **NASTY HACK** to replace the specs symlink with one that
+# points to a file that doesn't exist.
+install-commands:
+ - |
+ STAGE2_SYSROOT="$(dirname "$(pwd)")"
+ specs_dir="$(dirname $($TARGET_STAGE1-gcc -print-libgcc-file-name))"
+ target_specs_dir="$DESTDIR/${specs_dir#$STAGE2_SYSROOT}"
+ mkdir -p "$target_specs_dir"
+ ln -s "temporary specs removed by baserock bootstrap" "$target_specs_dir/specs"