- Fix bootloader recipe: pass correct TARGET on make command line
instead of hardcoding x86_64-unknown-uefi (breaks BIOS build)
- Add cargo -Zunstable-options to x86_64-unknown-uefi.mk and
x86-unknown-none.mk for custom target support
- Add x86_64-unknown-uefi.json target file
Remaining: redoxer toolchain cargo/rust-src version mismatch
prevents build-std compilation. Needs 'make prefix' to rebuild
toolchain with matching versions.
Bootloader needs x86_64-unknown-uefi (UEFI target) but redoxer
sets TARGET=x86_64-unknown-redox (OS target). Added:
- x86_64-unknown-uefi.json custom target file
- cargo -Zunstable-options in Makefile for custom target support
- TARGET= override in recipe (may still be overridden by redoxer)
Root cause chain discovered and fixed:
1. GCC built-in stddef.h shadowed by relibc's _STDDEF_H guard
→ fix_types.h with guarded typedefs for 15+ sys types
2. gnulib configure bakes raw typedefs into GL_CFLAG_GNULIB_WARNINGS
→ strip them from Makefiles after configure
3. __fseterr/__freadahead don't exist in relibc
→ compile C stubs and inject into link via Makefile patch
The recipe pattern is documented and reusable for other gnulib packages
(ninja-build, diffutils, etc.).
Also: bootloader recipe needs RUSTFLAGS=-Zunstable-options for
custom target support after redoxer toolchain restore.
Bootloader hardcoded RedoxFS partition offset at 2 MiB, which fails when
efi_partition_size > 1 (redbear-full, redbear-grub use 16 MiB, placing
RedoxFS at LBA 34816 = 17 MiB). Added GPT partition table parser that
scans for Linux filesystem GUID (0FC63DAF) to find the actual offset.
Also removed invalid 'respawn = true' from 31_debug_console.service in
redbear-full.toml — init's service format does not support this field.
Verified: all three ISOs boot in QEMU UEFI and reach login prompt.
Bootloader: alloc_zeroed_page_aligned no longer panics on OVMF
AllocatePages failure. Returns null on error.
Cookbook: pkgar falls back to repo/ dir when target pkgar missing.
Resolves KDE build chain failure.
redbear-full: builds 4.0GB image+ISO, boots without crash.
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
vasilito