Each board has one serial line that is its console, the lowest common denominator beside the screen and keyboard. Its address was QEMU's, fixed: on a Raspberry Pi 5 the aarch64 one is ordinary RAM, written to with every character printed; on a Milk-V Mars the riscv64 one is the board's UART with registers four bytes apart, and the UEFI loader would have waited for ever on its first character; on a PC with no COM1 the prompt read 0xFF for ever. console_attach_serial(), called before anything prints: COM1 if a UART answers there; elsewhere the UART that /chosen/stdout-path names (fdt_uart.c: alias, path, the address carried up through each bus's ranges, reg-shift and reg-io-width); with no devicetree, QEMU's. A devicetree that names no usable console gives no line, not a guess. A line that does not come ready is given up, not waited on. The riscv64 loader's early serial does the same. tools/fdt_uart_test.c, run by hand, 19 checks plain and under the sanitizers: devicetrees shaped like the Mars's, the Pi 5's and QEMU's, what must find nothing, and a block cut short at every length; and the Pi 5's real devicetree gives a PL011 at 0x107d001000. Acceptance, one QEMU at a time: v3 on amd64 (logs/20261013-204436), aarch64 (-204803) and riscv64 (-205001) to the zuse prompt, no unknown word, hash 0x08873e0f44b7cb2a on all three as before. -204600 is an aarch64 run during which the disk images were restored under it by a script that had been refused a second QEMU; it passed and is kept, and was run again. v4 on the three ISAs (-211149, -211444, -211857): POST 538 of 538, dict_hash 0xe5a57f3eb72ff94a, the typed session unchanged. The Mars image through OpenSBI and U-Boot in QEMU took its line and its interrupt controller from the devicetree and passed POST. Found on the way and not mended (boards/BRINGUP.md 1.6): built with EMERGENCY_CONSOLE_ENABLED=1 the prompt floods with empty lines. -210442 shows it; the commit before this does the same. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
tools/
Build-time and integration-test utilities for the StarForth / LithosAnanke toolchain.
Contents
| File | Purpose |
|---|---|
mkcapsule.c |
Assembles .4th capsule files into capsule_generated.c baked into the kernel image. Invoked automatically by kernel/Makefile. |
mkcapsule |
Compiled host binary (rebuilt on demand). |
ttftest.c |
Host TTF glyph-rendering test — font rasterization unit tests, no QEMU needed. |
pe_reloc_gen.py |
Generates PE32+ relocation tables for the UEFI loader. |
svg_to_png.py |
Renders every tracked .svg in the repo to a same-named .png via headless Chromium; leaves the source .svg untouched, run manually. |
hermes_smoke.sh |
Hermes v1 hosted smoke test — swaps in the Hermes init capsule and prints values for manual inspection. |
hermes_channel_smoke.sh |
Exercises the full Hermes channel-negotiation lifecycle (CH-REQUEST → CH-ACCEPT → CH-CLOSE → reap) per the protocol in .claude/HERMES.md. |
hermes_tripod_smoke.sh |
Full Tripod integration test — exercises all 6 inter-VM message paths using the DEFER VM-EXEC/IS VM-EXEC dispatcher shim from init.4th. |
kconfig/ |
Vendored Linux kernel Kconfig tooling (conf/mconf/qconf), GPL-2.0. See tools/kconfig/README.md. |
mkcapsule
# Invoked automatically by the kernel build:
make -f kernel/Makefile ARCH=amd64 clean qemu
# Manual invocation (for inspection):
./tools/mkcapsule capsules/ build/amd64/kernel/capsule_generated.c
Scans capsules/ for .4th files, computes XXHash64 per capsule, assigns
type (m) to init.4th and (p) to everything else.
See also
capsules/README.md— capsule file format and block namespacekernel/Makefile— kernel build system- Project root