toku-mac opened a new pull request, #3484:
URL: https://github.com/apache/nuttx-apps/pull/3484
## Summary
Add `DEPENDS` to ensure staticlib rebuilds when Rust-related files change.
## Impact
* Impact on build: Rebuilding with CMake for rust-related changes
## Testing
I confirm that changes are verified on local setup and works as intended:
* Build Host(s): OS (macOS 26.5), CPU(Apple M1), compiler(Apple clang
version 21.0.0)
* Target(s): arch(thumbv8m)
* Ensure your PATH environment variable is properly configured to allow
execution of: menuconfig, olddefconfig, savedefconfig, and setconfig.
* Use the Rust toolchain version prior to nightly-2026-04-29 to avoid errors
related to
lib/rustlib/src/rust/library/std/src/sys/net/connection/socket/unix.rs.
Configuration:
```
❯ make distclean
NuttX has not been configured!
To configure the project:
tools/configure.sh <config>
For a list of available configurations:
tools/configure.sh -L
❯ cmake -S . -B build-debug -DBOARD_CONFIG=nucleo-h563zi:nsh -GNinja
-- nuttx_add_subdirectory: Skipping cxx-oot-build
-- Initializing NuttX
Loaded configuration
'/Users/toku/nuttxspace/nuttx/build-debug/.config.compressed'
Minimal configuration saved to
'/Users/toku/nuttxspace/nuttx/build-debug/defconfig.tmp'
Select HOST_MACOS=y
-- CMake: 4.3.2
-- Ninja: 1.13.2
-- Board: nucleo-h563zi
-- Config: nsh
-- Appdir: /Users/toku/nuttxspace/apps
-- The C compiler identification is AppleClang 21.0.0.21000101
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- NuttX Host Tools
-- CMake C compiler: AppleClang
-- CMake system name: Darwin
-- CMake host system processor: arm64
TOOLS_DIR path is "/Users/toku/nuttxspace/nuttx"
HOST = Darwin
-- Configuring done (0.3s)
-- Generating done (0.0s)
-- Build files have been written to:
/Users/toku/nuttxspace/nuttx/build-debug/bin_host
-- The C compiler identification is GNU 14.3.1
-- The CXX compiler identification is GNU 14.3.1
-- The ASM compiler identification is GNU
-- Found assembler:
/Applications/ArmGNUToolchain/14.3.rel1/arm-none-eabi/bin/arm-none-eabi-gcc
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler:
/Applications/ArmGNUToolchain/14.3.rel1/arm-none-eabi/bin/arm-none-eabi-gcc -
skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler:
/Applications/ArmGNUToolchain/14.3.rel1/arm-none-eabi/bin/arm-none-eabi-g++ -
skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- nuttx_add_subdirectory: Skipping cxx-oot-build
-- Configuring done (4.2s)
-- Generating done (0.5s)
-- Build files have been written to: /Users/toku/nuttxspace/nuttx/build-debug
❯ printf "CONFIG_SYSTEM_TIME64=y
CONFIG_FS_LARGEFILE=y
CONFIG_TLS_NELEM=16
CONFIG_DEV_URANDOM=y
CONFIG_EXAMPLES_HELLO_RUST_CARGO=y
CONFIG_EXAMPLES_HELLO_RUST_CARGO_STACKSIZE=8192
" >> build-debug/.config
❯ cmake --build build-debug -t olddefconfig
[0/1] Re-running CMake...
-- NuttX Host Tools
-- CMake C compiler: AppleClang
-- CMake system name: Darwin
-- CMake host system processor: arm64
TOOLS_DIR path is "/Users/toku/nuttxspace/nuttx"
HOST = Darwin
-- Configuring done (0.0s)
-- Generating done (0.0s)
-- Build files have been written to:
/Users/toku/nuttxspace/nuttx/build-debug/bin_host
-- nuttx_add_subdirectory: Skipping cxx-oot-build
-- Configuring done (0.5s)
-- Generating done (0.4s)
-- Build files have been written to: /Users/toku/nuttxspace/nuttx/build-debug
[0/3] Re-checking globbed directories...
[1/3] cd /Users/toku/nuttxspace/nuttx && /opt/homebrew/...ke -E touch
/Users/toku/nuttxspace/nuttx/CMakeLists.tx
/Users/toku/nuttxspace/nuttx/build-debug/.config:2014: warning:
SYSTEM_TIME64 (defined at sched/Kconfig:170) set more than once. Old value "n",
new value "y".
/Users/toku/nuttxspace/nuttx/build-debug/.config:2015: warning: FS_LARGEFILE
(defined at fs/Kconfig:20) set more than once. Old value "n", new value "y".
/Users/toku/nuttxspace/nuttx/build-debug/.config:2016: warning: TLS_NELEM
(defined at libs/libc/tls/Kconfig:45) set more than once. Old value "0", new
value "16".
/Users/toku/nuttxspace/nuttx/build-debug/.config:2017: warning: DEV_URANDOM
(defined at drivers/crypto/Kconfig:16) set more than once. Old value "n", new
value "y".
/Users/toku/nuttxspace/nuttx/build-debug/.config:2018: warning:
EXAMPLES_HELLO_RUST_CARGO (defined at
/Users/toku/nuttxspace/apps/examples/rust/hello/Kconfig:6) set more than once.
Old value "n", new value "y".
Loaded configuration '/Users/toku/nuttxspace/nuttx/build-debug/.config'
Configuration saved to '/Users/toku/nuttxspace/nuttx/build-debug/.config'
```
Build:
```
❯ cmake --build build-debug
[0/2] Re-checking globbed directories...
[1/2] Re-running CMake...
-- NuttX Host Tools
-- CMake C compiler: AppleClang
-- CMake system name: Darwin
-- CMake host system processor: arm64
TOOLS_DIR path is "/Users/toku/nuttxspace/nuttx"
HOST = Darwin
-- Configuring done (0.0s)
-- Generating done (0.0s)
-- Build files have been written to:
/Users/toku/nuttxspace/nuttx/build-debug/bin_host
-- nuttx_add_subdirectory: Skipping cxx-oot-build
-- Configuring done (0.5s)
-- Generating done (0.4s)
-- Build files have been written to: /Users/toku/nuttxspace/nuttx/build-debug
[0/4] Re-checking globbed directories...
[1156/1162] Building Rust crate hello
Compiling compiler_builtins v0.1.160
(/Users/toku/.rustup/toolchains/nightly-2026-04-29-aarch64-apple-darwin/lib/rustlib/src/rust/library/compiler-builtins/compiler-builtins)
Compiling core v0.0.0
(/Users/toku/.rustup/toolchains/nightly-2026-04-29-aarch64-apple-darwin/lib/rustlib/src/rust/library/core)
Compiling libc v0.2.185
Compiling object v0.37.3
Compiling std v0.0.0
(/Users/toku/.rustup/toolchains/nightly-2026-04-29-aarch64-apple-darwin/lib/rustlib/src/rust/library/std)
Compiling proc-macro2 v1.0.106
Compiling quote v1.0.45
Compiling unicode-ident v1.0.24
Compiling serde_core v1.0.228
Compiling zmij v1.0.21
Compiling serde_json v1.0.149
Compiling serde v1.0.228
Compiling syn v2.0.117
Compiling serde_derive v1.0.228
Compiling rustc-std-workspace-core v1.99.0
(/Users/toku/.rustup/toolchains/nightly-2026-04-29-aarch64-apple-darwin/lib/rustlib/src/rust/library/rustc-std-workspace-core)
Compiling alloc v0.0.0
(/Users/toku/.rustup/toolchains/nightly-2026-04-29-aarch64-apple-darwin/lib/rustlib/src/rust/library/alloc)
Compiling memchr v2.7.6
Compiling adler2 v2.0.1
Compiling rustc-demangle v0.1.27
Compiling cfg-if v1.0.4
Compiling panic_abort v0.0.0
(/Users/toku/.rustup/toolchains/nightly-2026-04-29-aarch64-apple-darwin/lib/rustlib/src/rust/library/panic_abort)
Compiling rustc-literal-escaper v0.0.7
Compiling unwind v0.0.0
(/Users/toku/.rustup/toolchains/nightly-2026-04-29-aarch64-apple-darwin/lib/rustlib/src/rust/library/unwind)
Compiling rustc-std-workspace-alloc v1.99.0
(/Users/toku/.rustup/toolchains/nightly-2026-04-29-aarch64-apple-darwin/lib/rustlib/src/rust/library/rustc-std-workspace-alloc)
Compiling panic_unwind v0.0.0
(/Users/toku/.rustup/toolchains/nightly-2026-04-29-aarch64-apple-darwin/lib/rustlib/src/rust/library/panic_unwind)
Compiling gimli v0.32.3
Compiling hashbrown v0.17.0
Compiling miniz_oxide v0.8.9
Compiling std_detect v0.1.5
(/Users/toku/.rustup/toolchains/nightly-2026-04-29-aarch64-apple-darwin/lib/rustlib/src/rust/library/std_detect)
Compiling addr2line v0.25.1
Compiling proc_macro v0.0.0
(/Users/toku/.rustup/toolchains/nightly-2026-04-29-aarch64-apple-darwin/lib/rustlib/src/rust/library/proc_macro)
Compiling pin-project-lite v0.2.17
Compiling itoa v1.0.18
Compiling memchr v2.8.0
Compiling tokio v1.52.3
Compiling hello v0.1.0 (/Users/toku/nuttxspace/apps/examples/rust/hello)
Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.59s
[1157/1162] Linking CXX executable nuttx
/Applications/ArmGNUToolchain/14.3.rel1/arm-none-eabi/bin/../lib/gcc/arm-none-eabi/14.3.1/../../../../arm-none-eabi/bin/ld:
warning: umm_mallinfo.c.o: missing .note.GNU-stack section implies executable
stack
/Applications/ArmGNUToolchain/14.3.rel1/arm-none-eabi/bin/../lib/gcc/arm-none-eabi/14.3.1/../../../../arm-none-eabi/bin/ld:
NOTE: This behaviour is deprecated and will be removed in a future version of
the linker
Memory region Used Size Region Size %age Used
flash: 1267368 B 2 MB 60.43%
sram: 11576 B 256 KB 4.42%
[1159/1162] Generating System.map
```
## PR verification Self-Check
* [x] My PR adheres to Contributing
[Guidelines](https://github.com/apache/nuttx/blob/master/CONTRIBUTING.md) and
[Documentation](https://nuttx.apache.org/docs/latest/contributing/index.html)
(git commit title and message, coding standard, etc).
* [x] My PR is ready for review and can be safely merged into a codebase.
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