[PATCH v2 05/40] doc: Document how sandbox_spl_tests are run

Simon Glass sjg at chromium.org
Sun Jan 31 04:32:13 CET 2021

Add a few notes about the sandbox_spl tests, since they are special.

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

Changes in v2:
- Add a note that SPL tests can in fact be run individualy
- Document how to run all C tests with 'ut all'
- Fix 'get list' typo

 doc/develop/testing.rst       |  5 +++
 doc/develop/tests_sandbox.rst | 77 +++++++++++++++++++++++++++++++++++
 2 files changed, 82 insertions(+)

diff --git a/doc/develop/testing.rst b/doc/develop/testing.rst
index 87c90eee271..b181c2e2e41 100644
--- a/doc/develop/testing.rst
+++ b/doc/develop/testing.rst
@@ -58,6 +58,11 @@ also select particular tests with -k::
    ./test/py/test.py --bd sandbox_flattree --build -k hello
+There are some special tests that run in SPL. For this you need the sandbox_spl
+   ./test/py/test.py --bd sandbox_spl --build -k test_spl
 See test/py/README.md for more information about the pytest suite.
 See :doc:`tests_sandbox` for how to run tests directly (not through pytest).
diff --git a/doc/develop/tests_sandbox.rst b/doc/develop/tests_sandbox.rst
index 85bbd4f6734..fdde76872ee 100644
--- a/doc/develop/tests_sandbox.rst
+++ b/doc/develop/tests_sandbox.rst
@@ -77,3 +77,80 @@ You can easily use gdb on these tests, without needing --gdbserver::
 You can then single-step and look at variables as needed.
+Running sandbox_spl tests directly
+SPL is the phase before U-Boot proper. It is present in the sandbox_spl build,
+so you can run SPL like this::
+   ./spl/u-boot-spl
+SPL tests are special in that run in the SPL phase, if the -u flag is given::
+   ./spl/u-boot-spl -u
+   U-Boot SPL 2021.01-00723-g43c77b51be5-dirty (Jan 24 2021 - 16:38:24 -0700)
+   Running 5 driver model tests
+   Test: dm_test_of_plat_base: of_platdata.c (flat tree)
+   Test: dm_test_of_plat_dev: of_platdata.c (flat tree)
+   Test: dm_test_of_plat_parent: of_platdata.c (flat tree)
+   Test: dm_test_of_plat_phandle: of_platdata.c (flat tree)
+   Test: dm_test_of_plat_props: of_platdata.c (flat tree)
+   Failures: 0
+   U-Boot 2021.01-00723-g43c77b51be5-dirty (Jan 24 2021 - 16:38:24 -0700)
+   DRAM:  128 MiB
+   ...
+Note that after running, SPL continues to boot into U-Boot proper. You can add
+'-c exit' to make U-Boot quit without doing anything further. It is not
+currently possible to run SPL tests and then stop, since the pytests require
+that U-Boot produces the expected banner.
+You can use the -k flag to select which tests run::
+   ./spl/u-boot-spl -u -k dm_test_of_plat_parent
+Of course you can use gdb with sandbox_spl, just as with sandbox.
+Running all tests directly
+A fast way to run all sandbox tests is::
+   ./u-boot -T -c "ut all"
+It typically runs single-thread in 6 seconds on 2021 hardware, with 2s of that
+to the delays in the time test.
+This should not be considered a substitute for 'make check', but can be helpful
+for git bisect, etc.
+What tests are built in?
+Whatever sandbox build is used, which tests are present is determined by which
+source files are built. For sandbox_spl, the of_platdata tests are built
+because of the build rule in test/dm/Makefile::
+   ifeq ($(CONFIG_SPL_BUILD),y)
+   obj-$(CONFIG_SPL_OF_PLATDATA) += of_platdata.o
+   else
+   ...other tests for non-spl
+   endif
+You can get a list of tests in a U-Boot ELF file by looking for the
+   $ nm /tmp/b/sandbox_spl/spl/u-boot-spl |grep 2_dm_test
+   000000000001f200 D _u_boot_list_2_dm_test_2_dm_test_of_plat_base
+   000000000001f220 D _u_boot_list_2_dm_test_2_dm_test_of_plat_dev
+   000000000001f240 D _u_boot_list_2_dm_test_2_dm_test_of_plat_parent
+   000000000001f260 D _u_boot_list_2_dm_test_2_dm_test_of_plat_phandle
+   000000000001f280 D _u_boot_list_2_dm_test_2_dm_test_of_plat_props

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