Make the self-hosted kernel-build runnable with zero manual toolchain/python setup
on the runner host (docs/ci-cd.md steps 3-4 move into the workflow):
- build/build-kernel.sh: honor a caller-provided CROSS_COMPILE (default stays the
Luckfox uclibc prefix). The kernel is freestanding, so a generic arm cross
compiler links it.
- kernel-build job: set CROSS_COMPILE=arm-linux-gnueabihf- (Debian
gcc-arm-linux-gnueabihf, already on 0640) instead of depending on the ephemeral
SDK checkout path; symlink python->python3 into $RUNNER_TEMP/bin on $GITHUB_PATH
for the bare-`python` SDK quirk.
- docs/ci-cd.md: only steps 1-2 (systemd service + cgroup cap) still need 0640 sudo.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
First recursive code-review-harness pass over the authored SDK code (sim/,
config-lint, flowgen, drivers/{relays,freshness}, build/, ci.yml). Four parallel
dimension reviewers; all findings at every severity corrected per workspace rule.
Correctness / reliability:
- freshness.c min_budget_ms: use a `seen` flag, not `best==0`, as the empty
sentinel — a zero-tolerance (max_stale_ms==0) binding was silently widened to a
looser neighbour's budget. Regression test added; still 66/66 MC/DC.
- config-lint parse_reserved_ranges: match `reg` as a whole property token (ident
boundary before, `=` after) so `reg-names` / a `region-*` label no longer
mis-parses into a bogus reserved range.
- config-lint loader check: fail closed — flag any loader with a LOAD_ADDR that is
not a known-safe boot component, instead of only known MCU names, so a future
coprocessor ("Rtos"/"Bl32") can't slip past the 0x40000-brick gate.
- build-kernel.sh: sha256 verification is now mandatory (refuse to build if the pin
is missing) and the mktemp scratch tree is removed on exit (trap), while a
caller-provided WORK is left intact for CI artifact upload.
Test quality:
- freshness: added the age==max_stale boundary case and a clock-wraparound
(now < last_ok) fail-safe-to-UNKNOWN test.
- relays: unsetenv(WARDEN_GPIO_ROOT) at main() so the NULL-env arm is hermetic.
Security / CI:
- ci.yml: top-level `permissions: contents: read` (badges overrides to write);
pin taiki-e/install-action to commit SHA (v2.86.7).
Maintainability / docs:
- drivers/enforce-mcdc.sh: one shared, name-derived gate replaces the two
copy-pasted per-driver scripts; Makefiles call ../../enforce-mcdc.sh.
- docs/architecture.md: §3/§4/§6/§7 rewritten to match reality — NPU/RGA models,
config-lint, and the relays+freshness MC/DC harnesses are done; kernel §6 now
reflects the 5.10->6.18.46 forward-port (ADR-0001), not the superseded plan44/6.6.
- README: status blurb + layout table corrected (kernel/, .github/; stale ci/ and
patches/ descriptions fixed). hpmcu "8 tests" -> 7 in docs.
- freshness.{c,h}: ADR reference points at flare-edge ADR-0004 (warden-sdk's
ADR-0004 is the CI runner — number collision).
- normalize rustfmt drift across sim/ + config-lint.
All green: sim 37 tests, config-lint 8 tests, both drivers 100% MC/DC (relays
40/40, freshness 66/66), clippy clean under -D warnings, gitleaks clean.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
- patches/: the pristine-6.18.46 -> WardenOS delta as a 13-patch, subsystem-split
series (223 files, ~136K lines: clk, pinctrl, DTs/mach, usb-phy, VOP/panel/rgb,
mailbox, pvtm, rknpu, rga, aic8800 wifi, audio codec, thermal/rtc/adc/gmac/touch).
Verified: every patch applies cleanly onto pristine (git apply --check), the full
series reproduces the hardware-verified tree, and the applied source configures +
builds the warden dtb + rockchip DRM drivers (rc=0).
- build/build-kernel.sh: fetch+verify pristine (sha256-pinned) -> apply series ->
warden_defconfig -> zImage + rv1106-warden.dtb. build/warden_defconfig captured.
- CI: `patches-apply` (GitHub-hosted, cached tarball) enforces the series applies;
`kernel-build` (self-hosted warden-sdk runner, dispatch-gated until registered)
runs the full build and uploads the image.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf
