speccy88 opened a new pull request, #3564:
URL: https://github.com/apache/nuttx-apps/pull/3564
## Summary
- Add Berry as an optional interpreter under `apps/interpreters/berry`.
- Pin upstream Berry at commit `4db341475df9e9ad18e6741ef978b4c467690e09`
and fetch it from the upstream archive during Make/CMake builds.
- Add Makefile, CMake, Kconfig, NuttX Berry configuration, and a short
README with usage examples.
- Apply a small default-port patch so Berry reports `NuttX` in its startup
banner and avoids the NuttX `optarg` macro collision.
## Impact
- New opt-in config: `CONFIG_INTERPRETERS_BERRY`.
- Default command: `berry`.
- Default priority: `100`.
- Default stack size: `12288`.
- Selects `ARCH_SETJMP_H`, `LIBC_FLOATINGPOINT`, and `SYSTEM_SYSTEM`.
- Keeps Berry shared-library module loading disabled, so it does not require
`CONFIG_LIBC_DLFCN`.
- Berry object files in the ESP32-C3 USB-console validation build:
`text=136529 data=0 bss=1004 dec=137533`.
## Testing
Host validation:
```sh
git diff --check -- interpreters/berry
```
Target build validation was done with current NuttX commit
`5feb1c4b8b3fda0bfeccbf49a2be8865169cdfd4`, this apps branch, RISC-V GCC
13.2.0, and `kconfig-frontends` on macOS arm64.
The USB-console profile was used for board testing because
`esp32c3-devkit:nsh` routes NSH to UART0, while this board is attached via
`/dev/cu.usbmodem101` using ESP32-C3 USB Serial/JTAG.
```sh
./tools/configure.sh -a ../nuttx_apps_berry_pr esp32c3-devkit:usbconsole
kconfig-tweak --file .config --enable CONFIG_INTERPRETERS_BERRY \
--set-str CONFIG_INTERPRETERS_BERRY_PROGNAME berry \
--set-val CONFIG_INTERPRETERS_BERRY_STACKSIZE 12288 \
--set-val CONFIG_INTERPRETERS_BERRY_PRIORITY 100
make olddefconfig
make -j8
make flash ESPTOOL_PORT=/dev/cu.usbmodem101 ESPTOOL_BAUD=460800
```
Build result for that ESP32-C3 image:
```text
Memory region Used Size Region Size %age Used
ROM: 370348 B 4 MB 8.83%
iram0_0_seg: 14656 B 321296 B 4.56%
irom0_0_seg: 215736 B 4 MB 5.14%
dram0_0_seg: 23168 B 321296 B 7.21%
drom0_0_seg: 304776 B 4 MB 7.27%
rtc_iram_seg: 52 B 8168 B 0.64%
rtc_reserved_seg: 0 GB 24 B 0.00%
```
```text
text=230382 data=44356 bss=283630 dec=558368
nuttx.bin=370312 bytes
```
Runtime smoke test on ESP32-C3:
```text
NuttShell (NSH)
nsh> berry -v
Berry 1.1.0
nsh> berry -e print(40+2)
42
nsh> berry
Berry 1.1.0 (build in Jun 26 2026, 09:07:01)
[GCC 13.2.0] on NuttX (default)
> import os
> os.exit(0)
nsh>
```
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