Ahmed55559 opened a new pull request, #20376:
URL: https://github.com/apache/nuttx/pull/20376
# Summary
Add CMake build support for the `stm32l476vg-disco` board.
## Purpose
The `stm32l476vg-disco` board did not have the CMakeLists.txt files required
to build its configurations with the NuttX CMake build system.
## Changes
* Add `boards/arm/stm32l4/stm32l476vg-disco/CMakeLists.txt`.
* Add `src/CMakeLists.txt` with the board source-file selection equivalent
to the existing Make-based build.
* Migrate the board's `/etc` ROMFS handling to `nuttx_add_romfs()` using
`RCRAWS` for the existing `rcS` and `rc.sysinit` files.
* Keep the existing Make-based build files and generated `etc_romfs.c`
unchanged for compatibility with the Make build system.
## Impact
This change affects the build system for `stm32l476vg-disco:nsh`.
## Testing
The following configuration was built successfully locally:
```text
Board: stm32l476vg-disco
Config: nsh
Architecture: ARM / STM32L4
Host: Linux / x86_64
Compiler: arm-none-eabi-gcc 16.1.x
CMake: 4.4.2
```
Build command:
```bash
cmake -S . -B build -DBOARD_CONFIG=stm32l476vg-disco:nsh
cmake --build build -j$(nproc)
```
Build result:
```text
[100%] Built target nuttx
[100%] Generating nuttx.bin
[100%] Generating nuttx.hex
[100%] Generating System.map
```
Memory usage:
```text
flash: 117968 B / 512 KB (22.50%)
sram: 8480 B / 96 KB ( 8.63%)
sram2: 0 B / 32 KB ( 0.00%)
```
Runtime/hardware testing was not performed.
## References
Fixes: #20366
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