The allocated_bytes were missing the allocation metadata. Because of that
the sum of free_bytes and allocated_bytes doesn't remain constant after
each allocation. This convention doesn't match glibc's behavior. This
commit changes the chunksz_to_bytes function to include the metadata in the
calculation. The analysis of the mallinfo2 function from glibc has been
done in #92392 Pull Request.
Signed-off-by: Krzysztof Sychla <ksychla@antmicro.com>
To request heap statistics, a pointer to a heap structure is required.
This is straightforward for a user-defined heap. However, such a pointer
is not known for heaps created by other components or libraries, like
libc. Therefore, it is not possible to calculate the total heap memory.
The proposed solution is to use an array of pointers, which is filled in
on every sys_heap_init() call. One can then iterate through it to sum up
the total memory allocated for all heaps.
The array size is configurable. The default array size is zero,
which means the feature is disabled. Any other integer greater then zero
defines the array size and enables the feature.
A list of pointers instead of an array could be another approach,
but it requeres a heap, which is not always available.
Signed-off-by: Ivan Pankratov <ivan.pankratov@silabs.com>
In the docs replace the references to native_posix with native_sim.
And switch the default test platform to native_sim from native_posix.
Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>
- Updated basic samples READMEs to use the new zephyr:code-sample::
directive. Dropped "-sample" suffix that's not required anymore now
that samples have their own namespace.
- Updated all references to the samples to use the :zephyr:code-sample:
role. Checked and updated the wording of said references to account
for the fact that samples should not have "... sample" in their name
anymore.
Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>
Remove print_sys_memory_stats() from hash_map example as it is not used
there at all. For sys_heap make this a static function.
Signed-off-by: Florian La Roche <Florian.LaRoche@gmail.com>
Twister now supports using YAML lists for all fields that were written
as space-separated lists. Used twister_to_list.py script. Some artifacts
on string length are due to how ruamel dumps content.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
As both C and C++ standards require applications running under an OS to
return 'int', adapt that for Zephyr to align with those standard. This also
eliminates errors when building with clang when not using -ffreestanding,
and reduces the need for compiler flags to silence warnings for both clang
and gcc.
Most of these changes were automated using coccinelle with the following
script:
@@
@@
- void
+ int
main(...) {
...
- return;
+ return 0;
...
}
Approximately 40 files had to be edited by hand as coccinelle was unable to
fix them.
Signed-off-by: Keith Packard <keithp@keithp.com>
Krzysztof Sychla
Jordan Yates
Ivan Pankratov
Alberto Escolar Piedras
Benjamin Cabé
Florian La Roche
Gerard Marull-Paretas
Keith Packard
Jeppe Odgaard