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`make` did not parse at all (missing separator at line 139), so every
make target was dead. The folder also carried three overlapping
launchers (boot.sh, qemu.sh, boot-image.sh) plus a fourth partial one
in the Makefile, `cargo build --package rsdos` copy-pasted eight times,
the QEMU invocation copy-pasted per script, and the test helpers
(fail/wait_log/wait_qemu_exit/qemu_hmp) duplicated in five tests.
New layout:
- scripts/lib.sh: single config (image, OVMF, mem/smp), the one cargo
invocation (build_all), the one QEMU shape (qemu_args), and the test
harness (test_boot, wait_log, wait_qemu_exit, qemu_hmp, sendkeys)
- scripts/build.sh: kernel + every bins/* in one pass
- scripts/mksystem.sh: freshness-aware image build that now stages
every bins/*.efi into /bin/cli|gui (they were never copied before)
- scripts/run.sh: build + stage + boot in one command; --headless,
--debug (GDB stub), --monitor (HMP socket), --fresh, --mem/--smp/
--bios/--image; on Wayland it auto-selects XWayland plus
grab-on-hover so the mouse can be captured (Ctrl+Alt+G toggles)
- scripts/tests/: the five automated tests on the shared harness
- deleted: boot.sh, qemu.sh, boot-image.sh, lib-boot-args.sh,
build-image-release.sh, build-bootloader.sh (rsboot chain dropped)
The Makefile is now a thin wrapper: make run, make test, make system,
make inspect, make help. Two-command flow: ./scripts/build.sh then
./scripts/run.sh (run.sh alone also works).
Stale test assumptions fixed so the suite is green again: test-gfx
waited for "gfx: check" while the shell prints "gfx check: PASS";
test-mouse/test-msg hardcoded msgrecv = task 3 (wm-input took slot 3 —
ids are parsed from the log now); the queue-full probe targeted task 0,
whose exec pump drains its own queue as completion codes (moved to the
cursor task, which never recvs).
Verified in QEMU: make test -> test-disk, test-gfx, test-mouse,
test-msg, test-fault all PASS.
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boot.sh: replace esp/ + DISK_IMG with single SYSTEM_IMG on ide.0
(hooks into mksystem.sh --force for auto-staging).
boot-image.sh: delegate to mksystem.sh --chain (build-image.sh deleted).
build-image-release.sh: delegate to mksystem.sh --chain --gpt.
qemu.sh: flexible launcher uses SYSTEM_IMG; --chain flag for
full-chain build.
test-disk.sh: drop ESP_DIR (mksystem.sh stages everything).
test-fault.sh: boot system.img on ide.0 + CRASHLOG stick on ide.1;
replace deleted mkdisk.sh with inline mkfs.fat.
test-gfx.sh: system.img on ide.0, stage via mksystem.sh.
test-mouse.sh: system.img on ide.0, stage via mksystem.sh.
test-msg.sh: system.img on ide.0, stage via mksystem.sh.
Makefile: remove stale build-image.sh/mkdisk.sh references from help;
image target delegates to mksystem.sh --chain.
All scripts syntax-checked (bash -n). build-image.sh and mkdisk.sh
no longer referenced anywhere.
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The kernel previously started only AHCI port 0, so any launch where the
firmware/QEMU put something else on port 0 (e.g. the ESP from an implicit
-drive file=fat:rw:esp) left the real disk unnoticed: 'unsupported sector
size 0' and no mount.
- ahci.rs: enumerate CAP.NP/PI ports, start every port that links up
(empty ports settle at DET=0 and are skipped quickly), keep up to 8
disks, and expose disk_count()/select() for the filesystem
- fat.rs: try each disk in port order and mount the first valid FAT32
volume; non-FAT disks are logged and skipped
- scripts/boot.sh: attach the data disk on ide.0 and the ESP on ide.1
(DISK_IMG env var, default /tmp/disk.img), matching the Makefile
- Verified with the disk on port 0 (Makefile style), port 5 (old-style
command line), and with the ESP on port 0; fsck.fat stays clean
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- ahci.rs: polling AHCI on PCI class 1/6/1, bus mastering + ABAR map,
port 0 up, IDENTIFY + READ/WRITE DMA EXT through one 4KiB DMA buffer
- fat.rs: BPB parse, whole-FAT RAM cache with write-back to both copies,
LFN read/write, dirs, multi-cluster files, FSInfo free-count sync,
space-padded dot entries ('..' = cluster 0 under root), fsck-clean
- fs.rs: /disk mount node + 24-slot ephemeral node pool; ls/cat/hexdump/
echo/mkdir/touch/rm/edit all work on disk paths unchanged
- QEMU: explicit bus assignment (disk=ide.0, ESP=ide.1); the implicit
fat:rw:esp drive was stealing AHCI port 0
- Debugged against QEMU source: header DW0 is CFL in bits 4:0 / PRDTL in
bits 31:16 (Linux libahci layout), FIS count at bytes 12-13, device at
byte 7; QEMU rejects H2D FIS flags bits 6:4, so direction is the
header W bit only
- Verified: full shell round-trip on /disk, reboot persistence (poweroff
then mdir/mtype and a fresh boot), fsck.fat clean
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