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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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Makefile: PROFILE=release, CARGO_FLAGS=--release; make release target
kept as no-op (now default). boot.sh: PROFILE=release default;
--debug flag opt-in. mksystem.sh: PROFILE=release default.
test-disk/fault/gfx/mouse/msg: all use --release.
All scripts syntax-checked.
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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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Real hardware has no serial console, and the ahci/fat/fs boot
diagnostics were serial-only — a silent fs failure left the user with
no way to see where boot stopped. Add boot_marker lines for the AHCI
disk count, FAT volume count, and the VFS tree + fs self-test result.
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The fault handler now writes crash.log to the volume labeled CRASHLOG
(label-selected via fat::crash_vol), falling back to slot 0. On real
hardware the boot USB may be unwritable, so a second stick labeled
CRASHLOG survives the write; the shell auto-prints the previous crash
report from it at next boot (read_crash_log resolves /disk/<uid>/crash.log
through the FAT path, since Disk nodes hold no cached children).
- fat.rs: volume_label() + crash_vol() (no allocation)
- fs.rs: write_crash_log targets crash_vol(); read_crash_log prefers the
CRASHLOG disk node; drop now-unused first_disk()
- mkdisk.sh: --label option
- test-fault.sh: boots with a dedicated CRASHLOG stick (mkfs -F 32 -n
CRASHLOG), verifies crash.log lands there and NOT on the ESP
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The real-hardware scroll crash (white bands + instant freeze, QEMU-clean)
was invisible because the only trace was a single serial line on machines
with no serial console. This makes every crash self-identifying and
hardens the real-hardware failure surfaces:
- Every CPU exception vector 0-31 now has an IDT entry (macro-generated
stubs; 8/14 keep their IST stacks). A fault in the shell prints a
white-on-red band to the framebuffer via gop::dump_lines (raw fb
writes bypassing the vt, fully clamped) plus a parseable serial line:
'!!! <kind> vec=N err=… rip=… cr2=… rsp=… rflags=… task=N "name"',
then halts — instead of converging to a cryptic double fault.
Background-task faults abort the task as before.
- Boot log now reports the authoritative post-SetMode geometry:
'gop: fb base=… size=… pitch=… WxH bpp=… bgr=…', so the next real
machine's report identifies whether pitch*height exceeds the mapping.
- Framebuffer writes (clear, push_rect, shift_up_n bulk push, cursor
overlay) are clamped to the firmware's framebuffer_size: a pitch-
padded mode degrades to a truncated view instead of faulting past
the mapping.
- The GOP framebuffer region is excluded from the page allocator (and
subtracted from the heap's conventional-region pick) even when the
firmware lists it as ConventionalMemory — kernel allocations can
never overwrite the display again. The GOP protocol is located and
peeked before the memory map is captured so the exclusion is known
at heap-init time.
- Shell gains a hidden 'fault' command (deliberate unmapped write) and
'make test-fault' verifies the dump: vec=14, cr2=0x400000000000,
task=0, halt — no triple fault. All other suites re-pass.
- CONTEXT.md: fault-dump format documented for real-hardware reports.
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