Allow specifying extra compiler flags (warning flags, preprocessor
definitions, etc.) via a new 'compile_options' entry in the
idf-build-file frontmatter. The options are applied to the source
file via target_compile_options in the generated main component
CMakeLists, with CMake quoting so that flags like -DMSG="hello world"
reach the compiler exactly as written.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Add a new idf.py extension that allows building standalone C files
without requiring full project boilerplate. Source files can include
optional YAML frontmatter in block comments to specify sdkconfig
options, component dependencies, and target configuration.
When the frontmatter configuration changes, the stale sdkconfig is
removed so the new defaults are applied, and a target change also
clears the build directory since IDF_TARGET is pinned in the CMake
cache.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
The esp-idf-configdep utility works as a compiler wrapper. It lets the
compiler compile the app and checks whether -MF option was used to
generate dependency files. If yes, it checks for sdkconfig.h dependency
in those files.
Target file depending on sdkconfig.h is then scanned for all CONFIG_*
occurrences and the dependency file is altered so that the given target
file is marked as "dirty" only if the config options it actually uses
are changed.
This ensures that after a configuration update, only affected files are
rebuilt, reducing incremental build times.
The compiler launcher mechanism is changed from RULE_LAUNCH_COMPILE
(Makefile-only) to CMAKE_*_COMPILER_LAUNCHER (generator-agnostic),
enabling launcher chaining (configdep -> ccache -> compiler).
Made-with: Cursor
Add the initial documentation for the idf.py diagnostic tool, detailing
how it can be used to gather information for troubleshooting issues
related to the ESP-IDF project.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
Add a basic description and usage overview of the esp-idf-sbom tool. A
more detailed description is already available on the GitHub pages,
which this documentation refers to.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
