Red Bear OS — microkernel OS in Rust, based on Redox

Derivative of Redox OS (https://www.redox-os.org) adding: - AMD GPU driver (amdgpu) via LinuxKPI compat layer - ext4 filesystem support (ext4d scheme daemon) - ACPI fixes for AMD bare metal (x2APIC, DMAR, IVRS, MCFG) - Custom branding (hostname, os-release, boot identity) Build system is full upstream Redox with RBOS overlay in local/. Patches for kernel, base, and relibc are symlinked from local/patches/ and protected from make clean/distclean. Custom recipes live in local/recipes/ with symlinks into the recipes/ search path. Build: make all CONFIG_NAME=redbear-full Sync: ./local/scripts/sync-upstream.sh
2026-04-12 19:05:00 +01:00
commit 50b731f1b7
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+[source]
+same_as = "../base"
+
+[build]
+template = "custom"
+dependencies = [
+  "redoxfs",
+]
+script = """
+BINS=(
+    init
+    logd
+    ramfs
+    randd
+    zerod
+
+    acpid
+    fbbootlogd
+    fbcond
+    hwd
+    inputd
+    lived
+    nvmed
+    pcid
+    pcid-spawner
+    rtcd
+    vesad
+)
+
+virt_bins()
+{
+    BINS+=(virtio-blkd virtio-gpud)
+}
+
+x86_common_bins()
+{
+    BINS+=(ahcid ided ps2d vesad)
+    virt_bins
+}
+
+aarch64_bins()
+{
+    case "${BOARD}" in
+        raspi3b*)
+            BINS+=(bcm2835-sdhcid)
+        ;;
+        *)
+        #qemu-virt
+            virt_bins
+        ;;
+    esac
+}
+
+case "${TARGET}" in
+    i586-unknown-redox | i686-unknown-redox)
+        x86_common_bins
+        ;;
+    x86_64-unknown-redox)
+        x86_common_bins
+        ;;
+    aarch64-unknown-redox)
+        aarch64_bins
+        ;;
+    *)
+        ;;
+esac
+
+rm -rf "${COOKBOOK_BUILD}/initfs"
+mkdir -p "${COOKBOOK_BUILD}/initfs/lib/init.d"
+
+cp "${COOKBOOK_SOURCE}/init.d"/* "${COOKBOOK_BUILD}/initfs/lib/init.d/"
+
+mkdir -pv "${COOKBOOK_BUILD}/initfs/lib/pcid.d"
+cp -v "${COOKBOOK_SOURCE}/drivers/initfs.toml" "${COOKBOOK_BUILD}/initfs/lib/pcid.d/initfs.toml"
+
+export CARGO_PROFILE_RELEASE_OPT_LEVEL=s
+export CARGO_PROFILE_RELEASE_PANIC=abort
+"${COOKBOOK_CARGO}" build ${build_flags} \
+    --manifest-path "${COOKBOOK_SOURCE}/Cargo.toml" \
+    $(for bin in "${BINS[@]}"; do echo "-p" "${bin}"; done)
+
+mkdir -pv "${COOKBOOK_BUILD}/initfs/bin" "${COOKBOOK_BUILD}/initfs/lib/drivers"
+for bin in "${BINS[@]}"
+do
+    case "${bin}" in
+      init | logd | ramfs | randd | zerod | pcid | pcid-spawner | fbbootlogd | fbcond | inputd | vesad | lived | ps2d | acpid | bcm2835-sdhcid | rtcd | hwd)
+        cp -v "target/${TARGET}/${build_type}/${bin}" "${COOKBOOK_BUILD}/initfs/bin"
+        ;;
+      *)
+        cp -v "target/${TARGET}/${build_type}/${bin}" "${COOKBOOK_BUILD}/initfs/lib/drivers"
+        ;;
+    esac
+done
+
+cp "${COOKBOOK_SYSROOT}/usr/bin/redoxfs" "${COOKBOOK_BUILD}/initfs/bin"
+
+ARCH="$(echo "${GNU_TARGET}" | cut -d - -f1)"
+RUSTFLAGS="$RUSTFLAGS -Ctarget-feature=+crt-static" cargo \
+    -Zbuild-std=core,alloc,compiler_builtins \
+    -Zbuild-std-features=compiler-builtins-mem build \
+    --target "${TARGET}" \
+    --manifest-path "${COOKBOOK_SOURCE}/bootstrap/Cargo.toml" \
+    --release \
+    --target-dir "${COOKBOOK_BUILD}"
+"${GNU_TARGET}-ld" \
+    -o "${COOKBOOK_BUILD}/bootstrap" \
+    --gc-sections \
+    -T "${COOKBOOK_SOURCE}/bootstrap/src/${ARCH}.ld" \
+    -z max-page-size=4096 \
+    "${COOKBOOK_BUILD}/${TARGET}/release/libbootstrap.a"
+
+env -u CARGO -u RUSTFLAGS cargo run --manifest-path "${COOKBOOK_SOURCE}/initfs/tools/Cargo.toml" --bin redox-initfs-ar -- "${COOKBOOK_BUILD}/initfs" "${COOKBOOK_BUILD}/bootstrap" -o "${COOKBOOK_BUILD}/initfs.img"
+
+mkdir -pv "${COOKBOOK_STAGE}/usr/lib/boot"
+cp "${COOKBOOK_BUILD}/initfs.img" "${COOKBOOK_STAGE}/usr/lib/boot/initfs"
+"""