Initially, ESP-IDF used the do_global_ctors() function to run global
constructors. This was done to accommodate Xtensa targets that emit
.ctors.* sections, which are ordered in descending order.
For RISC-V, compilation used .init_array.* sections, which are designed
to have ascending order. Priority constructors in .init_array.* sections
were correctly processed in ascending order. However, non-priority
.init_array section was processed in descending order, as it was done
for Xtensa .ctors.
Starting with ESP-IDF v6.0, the implementation switched to the standard
LibC behavior (__libc_init_array()), which processes both priority and
non-priority constructors in ascending order.
To achieve this, a breaking changes were introduced:
- Xtensa .ctors.* priority entries converted to .init_array.* format
(ascending), to be passed to __libc_init_array().
- Processing order of non-priority .init_array and .ctors sections was
changed from descending to ascending.
Also, this change introduces .preinit_array for linking. This may be
needed for some C++ or sanitizer features.
Related to https://github.com/espressif/esp-idf/issues/15529
Set the COMPONENTS project variable to streamline the build process.
Although the minimal build feature could be used to specify plugin
components in the main component dependencies, it's more convenient to
set the plugin components at the project level. This approach also
allows for quick selection of which plugins to include in the
application.
Signed-off-by: Frantisek Hrbata <frantisek.hrbata@espressif.com>
This commit updates variousf pytest scripts to expect
"main_task: Calling app_main()" instead of "cpu_start: Starting scheduler" as
indicator of the start of an application.
This updates the minimal supported version of CMake to 3.16, which in turn enables us to use more CMake features and have a cleaner build system.
This is the version that provides most new features and also the one we use in our latest docker image for CI.
