Monorepo for Aesthetic.Computer
aesthetic.computer
ac-os: standardize on gcc, add boot validation, parallel binary build
- Remove musl-gcc detection — always use gcc for glibc compatibility
- Add initramfs validation before kernel build: checks /init, ac-native,
dynamic linker, all NEEDED shared libs, piece.mjs, WiFi firmware
- Aborts build if validation fails (prevents flashing unbootable kernels)
- Add binary shared lib resolution check after compile
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
+77
-12
+77
-12
fedac/native/ac-os
+77
-12
fedac/native/ac-os
···
36
36
build_binary() {
37
37
log "Building binary..."
38
38
cd "${SCRIPT_DIR}"
39
-
CC_USE="${CC:-}"
40
-
if [ -z "${CC_USE}" ]; then
41
-
# Only use musl-gcc if shared libs are also musl-linked (Fedora).
42
-
# On Ubuntu/Debian, shared libs are glibc — mixing musl binary + glibc libs crashes.
43
-
if command -v musl-gcc &>/dev/null \
44
-
&& echo '#include <linux/input.h>' | musl-gcc -E -x c - &>/dev/null 2>&1 \
45
-
&& ! ldd /usr/lib/*/libasound.so.2 2>/dev/null | grep -q 'libc.so.6'; then
46
-
CC_USE=musl-gcc
47
-
else
48
-
CC_USE=gcc
49
-
fi
50
-
fi
39
+
CC_USE="${CC:-gcc}"
51
40
# Run make and capture exit code — version strings frozen at top of script
52
41
mkdir -p "${BUILD_DIR}"
53
42
local MAKE_LOG="${BUILD_DIR}/.make.log"
···
66
55
err "Binary does NOT contain git hash ${AC_GIT_HASH} — stale build!"
67
56
exit 1
68
57
fi
58
+
59
+
# Telemetry: check binary can resolve all shared libs
60
+
local INTERP=$(readelf -l "${BUILD_DIR}/ac-native" 2>/dev/null | grep -oP '(?<=interpreter: ).*(?=\])')
61
+
log "Binary interpreter: ${INTERP:-static}"
62
+
local MISSING_LIBS=""
63
+
for lib in $(readelf -d "${BUILD_DIR}/ac-native" 2>/dev/null | grep -oP '(?<=\[)lib[^\]]+'); do
64
+
if ! ldconfig -p 2>/dev/null | grep -q "$lib"; then
65
+
MISSING_LIBS="${MISSING_LIBS} ${lib}"
66
+
fi
67
+
done
68
+
if [ -n "${MISSING_LIBS}" ]; then
69
+
err "Binary has missing shared libs:${MISSING_LIBS}"
70
+
exit 1
71
+
fi
72
+
log "Binary shared libs: all resolved"
69
73
70
74
# Build BPF trace tools (ftrace fallback — no clang/libbpf required)
71
75
if [ -f "${SCRIPT_DIR}/bpf/Makefile" ]; then
···
374
378
375
379
# Fix ownership so non-root users (oven) can rebuild next time
376
380
sudo chown -R "$(whoami)" "${INITRAMFS_ROOT}" "${BUILD_DIR}/initramfs.cpio" "${BUILD_DIR}/initramfs.cpio.lz4" 2>/dev/null || true
381
+
382
+
# === Validate initramfs will boot ===
383
+
log "Validating initramfs..."
384
+
local BOOT_OK=1
385
+
386
+
# 1. init script exists and is executable
387
+
if [ ! -x "${INITRAMFS_ROOT}/init" ]; then
388
+
err "VALIDATE: /init missing or not executable"
389
+
BOOT_OK=0
390
+
fi
391
+
392
+
# 2. ac-native binary exists
393
+
if [ ! -f "${INITRAMFS_ROOT}/ac-native" ]; then
394
+
err "VALIDATE: /ac-native missing"
395
+
BOOT_OK=0
396
+
fi
397
+
398
+
# 3. Dynamic linker matches binary's interpreter
399
+
local INTERP=$(readelf -l "${INITRAMFS_ROOT}/ac-native" 2>/dev/null | grep -oP '(?<=interpreter: ).*(?=\])')
400
+
if [ -n "${INTERP}" ] && [ ! -f "${INITRAMFS_ROOT}${INTERP}" ]; then
401
+
err "VALIDATE: binary needs ${INTERP} but it's missing from initramfs"
402
+
BOOT_OK=0
403
+
else
404
+
log " linker: ${INTERP} OK"
405
+
fi
406
+
407
+
# 4. All NEEDED shared libs exist in initramfs
408
+
local MISSING=""
409
+
for lib in $(readelf -d "${INITRAMFS_ROOT}/ac-native" 2>/dev/null | grep -oP '(?<=\[)lib[^\]]+'); do
410
+
if [ ! -f "${INITRAMFS_ROOT}/lib/${lib}" ] && [ ! -f "${INITRAMFS_ROOT}/lib64/${lib}" ]; then
411
+
MISSING="${MISSING} ${lib}"
412
+
fi
413
+
done
414
+
if [ -n "${MISSING}" ]; then
415
+
err "VALIDATE: missing shared libs in initramfs:${MISSING}"
416
+
BOOT_OK=0
417
+
else
418
+
log " shared libs: all present"
419
+
fi
420
+
421
+
# 5. piece.mjs exists
422
+
if [ ! -f "${INITRAMFS_ROOT}/piece.mjs" ]; then
423
+
err "VALIDATE: /piece.mjs missing"
424
+
BOOT_OK=0
425
+
fi
426
+
427
+
# 6. WiFi firmware exists (non-fatal warning)
428
+
if ! ls "${INITRAMFS_ROOT}/lib/firmware/iwlwifi"*.ucode &>/dev/null; then
429
+
log " WARNING: no iwlwifi firmware — WiFi will not work"
430
+
else
431
+
log " firmware: $(ls ${INITRAMFS_ROOT}/lib/firmware/iwlwifi*.ucode | wc -l) iwlwifi blobs"
432
+
fi
433
+
434
+
local INITRAMFS_SIZE=$(du -sh "${BUILD_DIR}/initramfs.cpio.lz4" | cut -f1)
435
+
log " initramfs size: ${INITRAMFS_SIZE}"
436
+
437
+
if [ "${BOOT_OK}" -eq 0 ]; then
438
+
err "Initramfs validation FAILED — kernel would panic. Aborting."
439
+
exit 1
440
+
fi
441
+
log "Initramfs validated — will boot"
377
442
}
378
443
379
444
build_kernel() {