Many boards use CONFIG_LMB=y but not all, e.g.
amd_versal2_mini_defconfig. Building this board with CONFIG_UNIT_TEST=y
fails:

    aarch64-linux-gnu-ld:
    test/lib/lmb.c:411:(.text.test_noreserved+0x428):
    undefined reference to `lmb_free'

We should be able to enable CONFIG_UNIT_TEST on any board.

With this patch the LMB test is only built if LMB is enabled which
overcomes the build issue.

Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

Add unit tests for the functions for counting leading and trailing zero
bits.

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>

Provide unit tests for efi_alloc_aligned_pages() and
efi_allocate_pages().

Signed-off-by: Heinrich Schuchardt <heinrich.schuchardt@canonical.com>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>

Inspecting the slre.c code reveals a few bugs; those are easy to
demonstrate with the new '=~' test operator. Before fixing them, let's
add a place to add test cases.

Reviewed-by: Simon Glass <sjg@chromium.org>
Signed-off-by: Rasmus Villemoes <ravi@prevas.dk>

Add a thread framework test to the lib tests. Update the API
documentation to use the test as an example.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Acked-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>

Test the initjmp() function when HAVE_INITJMP is set. Use the test as an
example in the API documentation.

Signed-off-by: Jerome Forissier <jerome.forissier@linaro.org>
Reviewed-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>

Tom Rini <trini@konsulko.com> says:

This series switches to always using $(PHASE_) in Makefiles when
building rather than $(PHASE_) or $(XPL_). It also starts on documenting
this part of the build, but as a follow-up we need to rename
doc/develop/spl.rst and expand on explaining things a bit.

Link: https://lore.kernel.org/r/20250401225851.1125678-1-trini@konsulko.com

It is confusing to have both "$(PHASE_)" and "$(XPL_)" be used in our
Makefiles as part of the macros to determine when to do something in our
Makefiles based on what phase of the build we are in. For consistency,
bring this down to a single macro and use "$(PHASE_)" only.

Signed-off-by: Tom Rini <trini@konsulko.com>

Add tests for the membuf implementation.

Signed-off-by: Simon Glass <sjg@chromium.org>

Simon Glass <sjg@chromium.org> says:

The current method of running unit tests relies on subcommands of the
ut command. Only the code in each subcommand knows how to find the tests
related to that subcomand.

This is not ideal and we now have quite a few subcommands which do
nothing but locate the relevant tests in a linker list, then call a
common function to run them.

This series adds a list of test suites, so that these subcommands can be
removed.

An issue with 'ut all' is that it doesn't record how many tests failed
overall, so it is necessary to examine copious amounts of output to look
for failures. This series adds a new 'total' feature allow recording the
total number of failed tests.

To help with 'ut all' a new pytest is created which runs it (as well as
'ut info') and makes sure that all is well. Due to the 'ut all' failures
this does not pass, so the test is disabled for now. It is here because
it provides security against misnaming a test suite and causing it not
to run.

Future work may:
- get 'ut all' passing
- enable test_suite() in CL, to ensure that 'ut all' keeps passing
- record duration of each suite
- allow running the tests in random order to tease out dependencies
- tweak the output to remove common prefixes
- getting rid of bootstd, optee and seame 'ut' subcommands

Link: https://lore.kernel.org/r/20250120212613.516664-1-sjg@chromium.org