vasilito
8bc64b0a5e
Add || exit 1 to all critical build steps (mkdir, cd, touch, configure, make, grub-mkimage) so failures surface immediately instead of silently continuing. Verify gcc/make/bison/flex are present before starting the build. Update grub.cfg help text to reference fat_tool.py instead of unavailable mtools.
137 lines
4.1 KiB
TOML
137 lines
4.1 KiB
TOML
# Red Bear OS — GRUB Boot Manager
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#
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# Builds GRUB for the HOST machine (not the Redox target).
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# GRUB is a build tool that produces standalone EFI binaries.
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# The resulting grub.efi chainloads the Redox bootloader.
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#
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# Output: /usr/lib/boot/grub.efi, /usr/lib/boot/grub.cfg
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#
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# Build: make r.grub
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# Install into image: ./local/scripts/install-grub.sh build/x86_64/harddrive.img
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#
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# Requires: gcc, make, bison, flex, autoconf, automake on host
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[source]
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tar = "https://ftp.gnu.org/gnu/grub/grub-2.12.tar.xz"
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[build]
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template = "custom"
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script = """
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# GRUB must be built for the HOST machine, not the Redox target.
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# It is a build tool that produces EFI binaries for bare-metal boot.
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# Override cookbook cross-compilation environment.
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# Force HOST compiler — cookbook sets CC to Redox cross-compiler.
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# GRUB is a host build tool, not a Redox binary.
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unset CC CXX CPP LD AR NM RANLIB OBJCOPY STRIP PKG_CONFIG
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unset CFLAGS CXXFLAGS CPPFLAGS LDFLAGS
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# Verify host tools are available before starting the build.
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for tool in gcc make bison flex; do
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if ! command -v "${tool}" &>/dev/null; then
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echo "ERROR: Required host tool '${tool}' not found" >&2
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exit 1
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fi
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done
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# Out-of-tree build (GRUB requires this for some configurations)
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mkdir -p "${COOKBOOK_BUILD}/grub-build" || exit 1
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cd "${COOKBOOK_BUILD}/grub-build" || exit 1
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# GRUB release tarballs miss extra_deps.lst (normally generated by autogen.sh)
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touch "${COOKBOOK_SOURCE}/grub-core/extra_deps.lst" || exit 1
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# Configure for host, targeting x86_64 EFI platform output.
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# --target=x86_64 means "produce boot images for x86_64"
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# --with-platform=efi means "EFI platform output"
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# We intentionally do NOT set --host (it should be the build machine).
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echo "Configuring GRUB for x86_64 EFI..."
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"${COOKBOOK_SOURCE}/configure" \
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--target=x86_64 \
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--with-platform=efi \
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--disable-werror \
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--disable-nls \
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--disable-grub-mkfont \
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--disable-grub-themes \
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--disable-grub-mount \
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--disable-device-mapper \
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--disable-libzfs \
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--prefix="${COOKBOOK_STAGE}/usr" || exit 1
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echo "Building GRUB..."
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make -j "${COOKBOOK_MAKE_JOBS}" || exit 1
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# Create output directory
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mkdir -p "${COOKBOOK_STAGE}/usr/lib/boot"
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# Locate GRUB modules directory.
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# In an out-of-tree build, modules are in grub-core/ under the build dir.
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MOD_DIR=""
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for d in grub-core .; do
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if [ -f "${d}/part_gpt.mod" ]; then
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MOD_DIR="${d}"
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break
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fi
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done
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if [ -z "${MOD_DIR}" ]; then
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echo "ERROR: Cannot find GRUB modules directory" >&2
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echo "Looked in: grub-core/ ." >&2
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find . -name "part_gpt.mod" 2>/dev/null || true
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exit 1
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fi
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echo "Found GRUB modules in: ${MOD_DIR}"
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# Build standalone EFI image with curated module set.
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# -O x86_64-efi: output format
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# -d MOD_DIR: module search directory
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# -p /EFI/BOOT: prefix for GRUB config search path
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# The resulting image is self-contained (no external module files needed).
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echo "Creating standalone GRUB EFI image..."
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./grub-mkimage \
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-O x86_64-efi \
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-d "${MOD_DIR}" \
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-o "${COOKBOOK_STAGE}/usr/lib/boot/grub.efi" \
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-p /EFI/BOOT \
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part_gpt \
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part_msdos \
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fat \
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ext2 \
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normal \
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configfile \
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search \
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search_fs_uuid \
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search_label \
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chain \
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echo \
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test \
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ls \
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cat \
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halt \
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reboot || exit 1
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# Verify output
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if [ ! -f "${COOKBOOK_STAGE}/usr/lib/boot/grub.efi" ]; then
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echo "ERROR: grub.efi was not created" >&2
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exit 1
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fi
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GRUB_SIZE=$(stat -f%z "${COOKBOOK_STAGE}/usr/lib/boot/grub.efi" 2>/dev/null || stat -c%s "${COOKBOOK_STAGE}/usr/lib/boot/grub.efi" 2>/dev/null || echo "unknown")
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echo "GRUB EFI image size: ${GRUB_SIZE} bytes"
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# Copy default GRUB configuration from recipe directory.
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# grub.cfg lives alongside recipe.toml, not in the extracted source tarball.
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if [ -f "${COOKBOOK_RECIPE}/grub.cfg" ]; then
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cp "${COOKBOOK_RECIPE}/grub.cfg" "${COOKBOOK_STAGE}/usr/lib/boot/grub.cfg"
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echo "Installed grub.cfg"
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else
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echo "ERROR: grub.cfg not found in ${COOKBOOK_RECIPE}" >&2
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echo "The grub.cfg file must exist alongside recipe.toml." >&2
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exit 1
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fi
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echo "GRUB recipe complete."
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echo "Install with: ./local/scripts/install-grub.sh build/x86_64/harddrive.img"
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"""
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