Robert Allan James
ab96ac0970
Adds fb_draw_orientation_test() (framebuffer.c/.h): fills the four raster corners RED/GREEN/BLUE/YELLOW via fb_fill_rect. Wired into kernel_main.c calling fb_init() directly -- console_fb_init()/vt100_init() removed from the boot path, since vt100.c/console.c are superseded by the Console drawing-fabric redesign (FABRIC.md ss27) and should not be exercised even incidentally. The diagnostic caught a real, pre-existing bug on its first run: framebuffer.c's pack_pixel() had its FB_PIXEL_RGBX32/FB_PIXEL_BGRX32 branches swapped relative to UEFI GOP's own byte-order naming convention, producing a clean R<->B channel swap (G unaffected). Spatial placement was already correct -- no flip/rotation. Fixed by swapping pack_pixel's two return bodies to match framebuffer.h's already-correct doc comments; kernel_main.c's GOP-format switch needed no change. Also item 4.3.2 -- QEMU screenshot capability. scripts/qemu_screenshot.sh already existed (monitor socket + socat + HMP screendump), just unwired and unused this session. Redirected its PNG output to a new top-level fb/ directory (tracked in git, not logs/, not a gitignored temp dir) and added a python3+PIL fallback for PPM->PNG conversion since imagemagick isn't installed here. Left as a standalone script for now, not wired into a Makefile target. FABRIC.md items 4.3.1 and 4.3.2 marked done with acceptance evidence.
include/starkernel/
Headers for LithosAnanke, the bare-metal UEFI kernel (src/starkernel/).
Built only via Makefile.starkernel; gated by __STARKERNEL__ when shared
with hosted code.
uefi.h— UEFI protocol/type definitions consumed by the loader.elf64.h,elf_loader.h— ELF64 parsing and kernel-image loading.boot_info_offsets.h— struct-offset constants shared between the assembly bootstrap and the C boot path.arch.h,apic.h,timer.h— architecture init, APIC interrupt controller, timer (TSC/HPET/APIC, 100 Hz heartbeat).console.h,framebuffer.h,vt100.h— UART 16550 console, framebuffer driver, and VT100 terminal emulation over the framebuffer.pmm.h,vmm.h,kmalloc.h— physical memory manager (bitmap allocator), 4-level x86_64 paging, kernel heap allocator.pci.h,virtio_blk.h— PCI enumeration and the VirtIO block device driver (disk backend for the kernel block subsystem).capsule.h,capsule_birth.h,capsule_loader.h,capsule_run.h,capsule_vm_physics.h,capsule_generated.h— capsule system types, birth protocol, physics-runtime capsule bindings, and the build-time- generated capsule directory (seetools/mkcapsule.c).kernel_args.h,cmdline.h— boot-time kernel argument parsing (starforth.cfg/ command line).repl.h— kernel REPL.log.h,doe_log.h— kernel logging and DoE metrics logging.q48_16.h— kernel-build copy of Q48.16 fixed-point arithmetic.xxhash64.h— content-addressing hash used for capsule IDs.hal_memory.h— hardware-abstraction-layer memory interface.
Subdirectories:
hal/— top-level hardware-abstraction-layer interface.vm/— kernel VM subsystem headers (capsule arena, parity logging, bootstrap wiring).freestanding/— minimal libc-shim headers (assert.h,ctype.h,errno.h,inttypes.h,math.h,sched.h,signal.h,stdio.h,stdlib.h,string.h,time.h,sys/time.h,sys/types.h) for building shared VM code in the freestanding kernel environment, where no real libc is available.