The public rpc_* and loader_* APIs are already exported by stock firmware
(RPC sessions, app data exchange, launch/enqueue/lock/menu); enable them
explicitly via EXPORT_ENABLE so they stay on. Add the internal loader
header set (loader_i.h, loader_menu.h, loader_queue.h, loader_applications.h)
to the SDK so the internal Loader handle and the menu/queue helpers are
reachable from apps. rpc_i.h is skipped: it depends on the protobuf headers
which are not part of the app SDK. API version -> 87.3; firmware links.
Enable all furi_hal_flash_* functions: geometry, free-page info, raw
program/erase/dword-write, and option-byte read/set/apply. Lets an app
read and modify internal flash directly (research use). Guarded by
EXPORT_FLASH (default 1); build with EXPORT_FLASH=0 to leave disabled.
17 symbols exported; firmware links and the app builds.
The gas-gauge readings (voltage, current, temperature, capacity, health,
charge state) are already exported by stock firmware; add the one remaining
safe reader, furi_hal_power_insomnia_level. furi_hal_power_init stays
disabled because re-initialising the power HAL from an app is unsafe.
Add a data-driven firmware-symbol export mechanism (EXPORT_ENABLE list in
build.sh, applied by the api_symbols.csv editor) and use it to enable all
gap_* functions, the safe ble_glue_* status/lifecycle calls, and
furi_hal_bt_init. Apps can now drive GAP directly, run a custom GATT
server, set the advertised name / extra-beacon config, and read radio-stack
status. The coprocessor FUS stack delete/install calls stay disabled to
avoid erasing the radio firmware. 19 symbols newly exported; firmware links.
build.sh now adds ST's aci_*/hci_* headers to the SDK (with extern "C"
guards, the API table is C++), lets fbt regenerate api_symbols.csv and
enables the selected functions (BLE_API=hci,gatt default; min; all).
The app builds as a normal .fap shipped inside the update package and
loadable from SD, saving ~12 KB of firmware flash versus the built-in
(min mode: ~22 KB). qsort replaced with an insertion sort since libc's
qsort is not exported to apps. README documents modes and flash budget.
Built-in firmware app (needs the full ST BLE stack) with live RSSI-sorted
scan list, advertisement decoding (Apple Continuity, Microsoft CDP, Fast
Pair, Eddystone), connect/discover/read/write/notify, device-info summary,
value history and a timestamped session log. build.sh produces a firmware
update package with COPRO_STACK_TYPE=ble_full and the app compiled in.
andy