JianyuWang0623 opened a new pull request, #3750:
URL: https://github.com/apache/nuttx-apps/pull/3750
## Summary
- Extract init_parse_config_buffer() out of init_parse_config_file()
so an in-memory buffer (not just a file) can be parsed with the
same section/validation logic.
- Add a post-parse check() loop to init_parse_config_buffer(),
mirroring the existing validation already done for file-based
parsing.
- Add "boot" and "start_cpu" builtin actions (depend on
BOARDCTL_BOOT_IMAGE / BOARDCTL_START_CPU respectively), letting
init.rc trigger firmware boot / secondary CPU bring-up.
- Fix event/board init timing: move the boot event chain into a
preset config buffer so "init" and the optional "netinit"/
"finalinit" events are triggered as a serialized chain instead of
being queued back-to-back in main(). Adds a "netinit" builtin that
calls netinit_bringup(), driven by
on init -> trigger netinit -> on netinit -> netinit
instead of calling netinit_bringup() directly in main(), restoring
the auto network bring-up that nsh provided (see nshlib/nsh_init.c).
finalinit remains a pure event for user-defined services to hook.
BOARDIOC_INIT/BOARDIOC_FINALINIT are not reintroduced since
BOARDIOC_INIT was already removed upstream in favor of
CONFIG_BOARD_LATE_INITIALIZE.
## Impact
- User: minor behavior change — when CONFIG_NETUTILS_NETINIT is set,
the network is now brought up automatically during boot again
(previously the event fired but nothing consumed it).
- Build: no new required config; "boot"/"start_cpu" builtins are
gated by existing BOARDCTL_BOOT_IMAGE/BOARDCTL_START_CPU.
- Hardware: NO.
- Documentation: NO.
- Compatibility: NO break to existing init.rc files.
## Testing
Build Host: Linux x86_64, gcc 13.4.0
Target: xtensa / ESP32-S3 / esp32s3-lckfb (adb config), toolchain
xtensa-esp32s3-elf-gcc 12.2.0
- tools/nxstyle on parser.c / builtin.c / init.c -> clean (exit 0)
- make -j8 -> Generated: nuttx.bin (link OK)
- Flashed and boot-verified on lckfb-szpi-esp32s3 hardware
(MAC a0:85:e3:f4:43:30) via esptool + adb:
```
$ esptool.py -c esp32s3 -p /dev/ttyUSB0 chip_id
Chip is ESP32-S3 (QFN56) (revision v0.2)
MAC: a0:85:e3:f4:43:30
$ make flash ESPTOOL_PORT=/dev/ttyUSB0
Wrote 287192 bytes (150626 compressed) at 0x00000000 in 2.9 seconds
Hash of data verified.
$ adb -s 1234 shell uname -a
NuttX 13.0.1-RC0 95a292de9ab-dirty Aug 24 2026 11:13:50 xtensa
lckfb-szpi-esp32s3
$ adb -s 1234 shell ps
TID PID PPID ... COMMAND
3 3 0 ... init_main <- nxinit as system init
4 4 3 ... sh <- init.rc: service console sh
5 5 3 ... adbd <- init.rc: service adbd adbd
```
init_main (nxinit, PID 3) boots and starts sh/adbd as services per
/etc/init.d/init.rc; confirmed reproducible across an adb reboot
cycle (same uname/ps output after reboot).
Note: this board's current config has BOARDCTL_BOOT_IMAGE,
BOARDCTL_START_CPU and NETUTILS_NETINIT unset, so the new "boot"/
"start_cpu"/"netinit" builtins are compiled out on this target and
were not exercised at runtime here. Their compile-time correctness
was separately verified against a NETUTILS_NETINIT-enabled config
(fastboot_tcp), where parser.c/builtin.c build and link cleanly.
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