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build: produce the matched 6.18 module set (issue #4 root cause)

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The hermetic build only ever made zImage+dtb — no 6.18 .ko set existed,
so the panel's only aic8800_btlpm.ko was the stale 5.10 build, which
fails the struct-module ABI check at load. New WARDEN_MODULES_COLLECT
env runs the full `make modules` (required: zImage alone emits no
Module.symvers, so per-directory M= builds cannot link) and collects the
listed dirs' modules fail-closed; CI's kernel-build collects
drivers/net/wireless/aic8800 and ships the .ko files in the artifact.

Verified: all three aic8800 modules (bsp 326K, fdrv 1.5M, btlpm 36K)
compile clean against 6.18, and bsp+btlpm INSMOD WITH RC=0 on the 6.18
kernel in the qemu/ device sim — no linkonce/this_module ABI error;
btlpm's rfkill init runs and only hardware power-up fails (no AIC silicon
on virt, expected). On-panel BT bring-up remains bench-gated (c8a3
currently dark).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_018HUayid7W5w7jBdb9Rrj1K
This commit is contained in:
BFE Engineering
2026-08-30 09:56:43 -06:00
co-authored by Claude Fable 5
parent ff62991e8d
commit c258a2da68
2 changed files with 34 additions and 0 deletions
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build/build-kernel.sh
+28
View File
@@ -19,6 +19,12 @@
# (qemu/configs/virt.fragment builds the QEMU -M virt variant);
# every fragment option is verified to have taken effect
# WARDEN_CCACHE=1 compile through ccache (CI caches ~/.ccache)
# WARDEN_MODULES_COLLECT
# space-separated in-tree dirs whose .ko files are wanted
# (e.g. "drivers/net/wireless/aic8800"). Runs a full
# `make modules` (the zImage target alone generates no
# Module.symvers, so per-dir M= builds cannot link) and
# collects the listed dirs' modules into $WORK/modules-out.
#
# Requires: `python` (not python3) on PATH — the SDK quirk; the CI runner provides
# a project-local venv. Builds are SERIAL on the shared SDK box — never run two.
@@ -157,6 +163,28 @@ log "building zImage + rv1106-warden.dtb (-j$JOBS)"
make -C "$SRC" ARCH=arm CROSS_COMPILE="$CROSS_COMPILE" CC="$KCC" -j"$JOBS" \
zImage rockchip/rv1106-warden.dtb
# Optional module set (issue #4: the panel loaded a stale 5.10 .ko because
# this build never produced matched 6.18 modules). Full `make modules` is
# required — zImage alone emits no Module.symvers, so a per-directory M=
# build cannot resolve even core symbols. FAILS CLOSED if a listed dir
# yields no modules.
if [ -n "${WARDEN_MODULES_COLLECT:-}" ]; then
MODOUT="$WORK/modules-out"
rm -rf "$MODOUT"; mkdir -p "$MODOUT"
log "building modules (full set — needed for Module.symvers)"
make -C "$SRC" ARCH=arm CROSS_COMPILE="$CROSS_COMPILE" CC="$KCC" -j"$JOBS" modules
for d in $WARDEN_MODULES_COLLECT; do
[ -d "$SRC/$d" ] || { echo "FATAL: WARDEN_MODULES_COLLECT dir '$d' not in tree" >&2; exit 1; }
n=0
while IFS= read -r ko; do
cp "$ko" "$MODOUT/"; n=$((n + 1))
done < <(find "$SRC/$d" -name '*.ko')
[ "$n" -gt 0 ] || { echo "FATAL: no .ko produced under '$d'" >&2; exit 1; }
log "collected $n module(s) from $d"
done
ls -la "$MODOUT"
fi
Z="$SRC/arch/arm/boot/zImage"
D="$SRC/arch/arm/boot/dts/rockchip/rv1106-warden.dtb"
log "build OK"