On 10/11/23 21:56, Sean Anderson wrote:
This series adds some tests for various SPL load methods, with the intent of
helping debug v6 of [1]. With that in mind, notable omissions include NAND and
ROMAPI, which both lack sandbox implementations, and OS_BOOT, which I have
deferred due to its complexity. Semihosting is also omitted, but I think we can
test that with qemu.
In order to test all of these methods, we must first generate suitable images,
possibly on filesystems. While other tests have historically generated these
images using external tools (e.g. mkimage, mkfs, etc.), I have chosen to
generate them on the fly. This is for a few reasons:
- By removing external dependencies on pytest to create certain files, the tests
become self-contained. This makes them easier to iterate on and debug.
- By generating tests at runtime, we can dynamically vary the content. This
helps detect test failures, as even if tests are loaded to the same location,
the expected content will be different.
- We are not testing the image parsers themselves (e.g. spl_load_simple_fit or
fs_read) but rather the load methods (e.g. spl_mmc_load_image). It is
unnecessary to exercise full functionality or generate 100% correct images.
- By reducing functionality to only what is necessary, the complexity of various
formats can often be greatly reduced.
This series depends on [2-3], which are small fixes identified through this
patch set. The organization of patches in this series is as follows:
- General fixes for bugs which are unlikely to be triggered outside of this
series
- Changes to IMX8 container images to facilitate testing
- General prep. work, particularly regarding linker issues
- The tests themselves
Mostly-passing CI at [4]; I have since fixed the typo/missing cast.
CI run for the series as-sent:
https://source.denx.de/u-boot/custodians/u-boot-clk/-/pipelines/18092
(hopefully by the time you read this it will have passed)
--Sean
