zephyr

Primary Git Repository for the Zephyr Project. Zephyr is a new generation, scalable, optimized, secure RTOS for multiple hardware architectures.

bluetooth bluetooth-le embedded embedded-c iot mcu microcontroller real-time rtos zephyr zephyr-rtos zephyros

History

Torsten Rasmussen ea082ac2c9 cmake: only write devicetree files when there are changes. As part of #40167 is was discovered that devicetree headers are always generated when CMake re-runs. This causes all source files that directly or indirectly through included headers to recompile when CMake re-runs, even if there are no changes to devicetree. This commits introduces `zephyr_file_copy(...)` similar to `file(COPY_FILE ...)` from CMake 3.21. However, as CMake 3.20 is supported by Zephyr we need a zephyr variant of this function to allow usage with CMake 3.20. This ensures that only when there are changes to devicetree headers, then source files will recompile. Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>	3 years ago
..
generated	cmake: only write devicetree files when there are changes.	3 years ago
empty_file.c	Introduce cmake-based rewrite of KBuild	8 years ago

Torsten Rasmussen ea082ac2c9 cmake: only write devicetree files when there are changes.

As part of #40167 is was discovered that devicetree headers are always
generated when CMake re-runs.

This causes all source files that directly or indirectly through
included headers to recompile when CMake re-runs, even if there are no
changes to devicetree.

This commits introduces `zephyr_file_copy(...)` similar to
`file(COPY_FILE ...)` from CMake 3.21.
However, as CMake 3.20 is supported by Zephyr we need a zephyr variant
of this function to allow usage with CMake 3.20.

This ensures that only when there are changes to devicetree headers,
then source files will recompile.

Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>

3 years ago

generated

cmake: only write devicetree files when there are changes.

3 years ago

empty_file.c

Introduce cmake-based rewrite of KBuild

8 years ago