cmake: tfm: support for custom CMake args when building TF-M #34868

ioannisg · 2021-05-05T15:14:39Z

This commit allows a subsystem to specify additional CMake flags to be
given to the TF-M build.

The additional CMake flags can be provided through the TFM_CMAKE_OPTIONS
property on the zephyr_property_target.
Using the zephyr_property_target allows Zephyr modules to append extra
TFM_CMAKE_OPTIONS regardless of the CMake processing order.

It splits the ExternalProject_Add into a two step process with the CMake
invocation executed using add_custom_target() and the build process
using ExternalProject_Add(). The reason for this split is because CMake
generator expressions passed through ExternalProject_Add to CMake will
quoted so that $<TARGET_PROPERTY:<tgt>,<prop>> becomes
"-DFOO=bar -DBAR=foo" instead of -DFOO=bar -DBAR=foo which again
results in CMake failures.

Signed-off-by: Torsten Rasmussen Torsten.Rasmussen@nordicsemi.no
Signed-off-by: Ioannis Glaropoulos Ioannis.Glaropoulos@nordicsemi.no

modules/trusted-firmware-m/Kconfig

erwango · 2021-05-06T09:11:20Z

@tejlmand this PR has some interest for me. Any concerns on having it for DV2.6.0?

tejlmand · 2021-05-06T12:38:36Z

modules/trusted-firmware-m/Kconfig

+config TFM_EXTRA_CMAKE_ARGS
+	string


This is not an optimal solution.
While it does solve some problems, it also carries some side-effects.

Namely that if moduleA needs to pass -DFOO=bar and thus creates:

# Kconfig.moduleA config TFM_EXTRA_CMAKE_ARGS string default "-DFOO=bar"

and moduleB needs to pass -DBAR=foo with:

# Kconfig.moduleA config TFM_EXTRA_CMAKE_ARGS string default "-DBAR=foo"

then only one of the values will be passed to TF-M.
Now, as long as either module A or module B is used, things will be fine, but if both are in use, this will break.

So this must be used with care.

I would prefer a cleaner and scalable solution, but could require some rework on how ExternalProject is used, cause the problem in the external project is how it handles generator expressions containing lists.

@tejlmand I'm getting your point. Though, I think even with the limitation you mention, this feature is better than having users trying to hack modules/trusted-firmware-m/CMakeLists.txt to pass their custom TFM arguments (what I did with varying results)
Isn't possible that possible to state that for now, this should be defined only in one place ?

I had the same argument, actually. We can keep working in the mean time to make this better. Otherwise we just keep defining explicit Kconfig options for the corresponding cmake arguments we want to pass

Please note also that, in case of the "user hacks CMakeLists.txt" case, trying to identify if the arguments are correctly passed to TFM is not the easiest thing.
So having a validated method, even with limitation, is really a thing we miss.

@tejlmand would an EXTRA_TFM_CMAKE_ARGS cmake list work for what you had in mind.

@tejlmand, done, please take a look.

FYI: Splitting between a "master" Kconfig and a "vendor" Kconfig has been discussed by me and @tejlmand offline... It helps a little, but it doesn't "solve it"

Changed to use a cmake list instead, so adding from multiple places should now work fine.

set_property(GLOBAL APPEND PROPERTY EXTRA_TFM_CMAKE_ARGS -DFOO=bar)

@oyvindronningstad problem with this approach is that it is introducing Zephyr module cmake order processing dependencies.

I understand that this is undesirable

ioannisg · 2021-05-06T14:04:01Z

@erwango can you check if this would work for your case?

erwango · 2021-05-06T14:30:35Z

@erwango can you check if this would work for your case?

This is working but definitely requires some documentation.

erwango

Approving with the expectation documentation will come later.

tejlmand · 2021-05-06T15:05:29Z

@erwango Please re-visit.

@ioannisg @oyvindronningstad I have pushed a proper solution which:

is not suffering the Kconfig issue.
is not CMake configure time process order dependent

Any CMake file can now append additional CMake arguments to the TF-M build by appending to the TFM_CMAKE_OPTIONS property on the zephyr_property_target.

This can be done as:

set_property(TARGET zephyr_property_target
  APPEND PROPERTY TFM_CMAKE_OPTIONS
  -DFOO=bar
  -DBAR=foo
  -DGENEX=$<1:Genex_are_supported>
)

erwango · 2021-05-06T15:13:16Z

@tejlmand Equally working and as average user I'd still need extra documentation

tejlmand · 2021-05-06T15:24:49Z

@tejlmand Equally working and as average user I'd still need extra documentation

@erwango and that has just been pushed 😄

erwango · 2021-05-06T15:25:54Z

@tejlmand Equally working and as average user I'd still need extra documentation

@erwango and that has just been pushed

Awesome. I'd approve twice if I could !

erwango · 2021-05-06T15:43:36Z

@tejlmand Maybe I've been too fast.
With this new version, I'm getting an error:

[14/163] cd /local/mcu/zephyrproject/zephyr/samples/tfm_integration/psa_level_1/build/nucleo_l552ze_q_ns/tfm && make install && /local/home/frq07517/.local/lib/python3.6/site-packages/cmake/data/bin/cmake -E touch /local/mcu/zephyrproject/zephyr/samples/tfm_integration/psa_level_1/build/nucleo_l552ze_q_ns/modules/trusted-firmware-m/tfm-prefix/src/tfm-stamp/tfm-install
FAILED: modules/trusted-firmware-m/tfm-prefix/src/tfm-stamp/tfm-install 
cd /local/mcu/zephyrproject/zephyr/samples/tfm_integration/psa_level_1/build/nucleo_l552ze_q_ns/tfm && make install && /local/home/frq07517/.local/lib/python3.6/site-packages/cmake/data/bin/cmake -E touch /local/mcu/zephyrproject/zephyr/samples/tfm_integration/psa_level_1/build/nucleo_l552ze_q_ns/modules/trusted-firmware-m/tfm-prefix/src/tfm-stamp/tfm-install
make: *** No rule to make target 'install'.  Stop.
ninja: build stopped: subcommand failed.
FATAL ERROR: command exited with status 1: /local/home/frq07517/.local/bin/cmake --build /local/mcu/zephyrproject/zephyr/samples/tfm_integration/psa_level_1/build/nucleo_l552ze_q_ns -- -v

Is it me only ?

I'm running:

/local/mcu/zephyrproject/zephyr/samples/tfm_integration/psa_level_1
$ west -v build -b nucleo_l552ze_q_ns

erwango

There's definitely something going not well with this last version.
Cf reported error
(Everything works fine for me on main branch)

tejlmand · 2021-05-07T07:26:31Z

@oyvindronningstad I experiences CI failures here:

INFO - 308/314 mps2_an521_nonsecure samples/tfm_integration/tfm_psa_test/sample.tfm.psa_internal_trusted_storage_test FAILED Build failure (qemu)

but if I go back to ef5ed3f and build the same sample, it already fails there:

$ git checkout ef5ed3f88bb
$ west update
$ ./scripts/twister -p mps2_an521_nonsecure  -N  --inline-logs -s samples/tfm_integration/tfm_psa_test/sample.tfm.psa_internal_trusted_storage_test
INFO    - Zephyr version: zephyr-v2.5.0-2414-gef5ed3f88bb9
INFO    - JOBS: 4
...
ninja: build stopped: subcommand failed.
FAILED: modules/trusted-firmware-m/tfm-prefix/src/tfm-stamp/tfm-build tfm/secure_fw/s_veneers.o tfm/app/libtfm_api_ns.a tfm/generated/interface/include/psa_manifest/sid.h tfm/app/psa_api_tests/val/val_nspe.a tfm/app/psa_api_tests/platform/pal_nspe.a tfm/app/psa_api_tests/dev_apis/storage/test_combine.a tfm/platform/libplatform_ns.a tfm/bin/bl2.bin tfm/bin/bl2.hex tfm/bin/tfm_s.bin tfm/bin/tfm_s.hex tfm/bin/tfm_ns.bin tfm/bin/tfm_ns.hex tfm/bin/tfm_s_signed.bin tfm/bin/tfm_ns_signed.bin tfm/bin/tfm_s_ns_signed.bin 
cd /projects/github/ncs/zephyr/twister-out/mps2_an521_nonsecure/samples/tfm_integration/tfm_psa_test/sample.tfm.psa_internal_trusted_storage_test/tfm && /opt/cmake-3.19.1-Linux-x86_64/bin/cmake --build .
ninja: build stopped: subcommand failed.

INFO    - /projects/github/ncs/zephyr/twister-out/mps2_an521_nonsecure/samples/tfm_integration/tfm_psa_test/sample.tfm.psa_internal_trusted_storage_test/build.log
INFO    - Total complete:    1/   1  100%  skipped:    0, failed:    1
...

So seems the CI failure is unrelated to this PR.

mps2_an521_nonsecure is valid board:

zephyr/samples/tfm_integration/tfm_psa_test/sample.yaml

Line 3 in ef5ed3f

platform_allow: mps2_an521_nonsecure v2m_musca_s1_nonsecure

tejlmand · 2021-05-07T07:30:49Z

Maybe change the commit message header since kconfig is no longer touched.

Done

samples/tfm_integration/tfm_integration.rst

ioannisg · 2021-05-07T07:51:24Z

modules/trusted-firmware-m/CMakeLists.txt

@@ -36,6 +36,11 @@ set(TFM_VALID_PARTITIONS
 #                TF-M regression tests
 # BL2: Boolean if the TF-M build uses MCUboot. Default: True
 # ENABLED_PARTITIONS: List of TFM partitions to enable.
+# CMAKE_ARGS: Additional CMake flags to be used when building TF-M


@tejlmand @erwango would this be better to be called CMAKE_ADDITIONAL_ARGS, or CMAKE_CUSTOM_ARGS, to reflect better what it is used for?

well, this is the description of the function: trusted_firmware_build()

So from the point of view of that function, it's just CMake args.

You could ideally use that function from other locations.

But when called from the internal Zephyr build here: https://github.com/ioannisg/zephyr/blob/b6678723a282a99e62aebbc62570e37748c03df9/modules/trusted-firmware-m/CMakeLists.txt#L321

CMAKE_ARGS $<GENEX_EVAL:$<TARGET_PROPERTY:zephyr_property_target,TFM_CMAKE_OPTIONS>>

you may consider it custom args.

tejlmand · 2021-05-07T08:45:58Z

@oyvindronningstad I experiences CI failures here:

Fixed. There was both lost arguments from conflict resolving, and then a bad gnuarmemb compiler causing local failures.

This commit allows a subsystem to specify additional CMake flags to be given to the TF-M build. The additional CMake flags can be provided through the TFM_CMAKE_OPTIONS property on the zephyr_property_target. Using the zephyr_property_target allows Zephyr modules to append extra TFM_CMAKE_OPTIONS regardless of the CMake processing order. It splits the ExternalProject_Add into a two step process with the CMake invocation executed using add_custom_target() and the build process using ExternalProject_Add(). The reason for this split is because CMake generator expressions passed through ExternalProject_Add to CMake will quoted so that `$<TARGET_PROPERTY:<tgt>,<prop>>` becomes `"-DFOO=bar -DBAR=foo"` instead of `-DFOO=bar -DBAR=foo` which again results in CMake failures. Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>

microbuilder · 2021-05-07T09:15:05Z

@oyvindronningstad I experiences CI failures here:

Fixed. There was both lost arguments from conflict resolving, and then a bad gnuarmemb compiler causing local failures.

I'm seeing the same here, with the latest code. It doesn't find GCC, and seems to fall back to the default C compiler on my system (using OS X here): /Library/Developer/CommandLineTools/usr/bin/cc ... I've run source zephyr-env.sh and west update and have the right setup in $HOME/.zephyrrc.

$ ./scripts/twister -p mps2_an521_nonsecure -N --inline-logs -s samples/tfm_integration/tfm_psa_test/sample.tfm.psa_internal_trusted_storage_test
...
[2/5] Building C object CMakeFiles/TargetConfigGen.dir/Users/kevin/Linaro/zephyr/zephyr/twister-out/mps2_an521_nonsecure/samples/tfm_integration/tfm_psa_test/sample.tfm.psa_internal_trusted_storage_test/tfm/app/psa_api_tests/targetConfigGen.c.o
FAILED: CMakeFiles/TargetConfigGen.dir/Users/kevin/Linaro/zephyr/zephyr/twister-out/mps2_an521_nonsecure/samples/tfm_integration/tfm_psa_test/sample.tfm.psa_internal_trusted_storage_test/tfm/app/psa_api_tests/targetConfigGen.c.o 
/Library/Developer/CommandLineTools/usr/bin/cc  -I/Users/kevin/Linaro/zephyr/modules/tee/tfm/psa-arch-tests/api-tests/val/nspe -I/Users/kevin/Linaro/zephyr/modules/tee/tfm/psa-arch-tests/api-tests/val/common -I/Users/kevin/Linaro/zephyr/modules/tee/tfm/psa-arch-tests/api-tests/platform/targets/common/nspe -I/Users/kevin/Linaro/zephyr/modules/tee/tfm/psa-arch-tests/api-tests/platform/targets/common/nspe/crypto -I/Users/kevin/Linaro/zephyr/modules/tee/tfm/psa-arch-tests/api-tests/platform/targets/tgt_dev_apis_tfm_an521/nspe -arch arm64 -o CMakeFiles/TargetConfigGen.dir/Users/kevin/Linaro/zephyr/zephyr/twister-out/mps2_an521_nonsecure/samples/tfm_integration/tfm_psa_test/sample.tfm.psa_internal_trusted_storage_test/tfm/app/psa_api_tests/targetConfigGen.c.o -c /Users/kevin/Linaro/zephyr/zephyr/twister-out/mps2_an521_nonsecure/samples/tfm_integration/tfm_psa_test/sample.tfm.psa_internal_trusted_storage_test/tfm/app/psa_api_tests/targetConfigGen.c
/Users/kevin/Linaro/zephyr/zephyr/twister-out/mps2_an521_nonsecure/samples/tfm_integration/tfm_psa_test/sample.tfm.psa_internal_trusted_storage_test/tfm/app/psa_api_tests/targetConfigGen.c:1:10: fatal error: 'stdio.h' file not found
#include <stdio.h>
         ^~~~~~~~~

You're using the zephyr SDK on Linux, I imagine?

microbuilder · 2021-05-07T09:26:08Z

The compiler reference issue seems to be specific to tfm_psa_test run with twister. Running a sample via west works as expected, and finds the right compiler. Perhaps the test projects are looking for arm-zephyr-eabi-gcc from the Zephyr SDK, and not finding it since other systems will only have zephyr-none-eabi-gcc.

I get the same behaviour on master, though, so it isn't specific to this PR.

tejlmand · 2021-05-07T09:33:30Z

@oyvindronningstad I experiences CI failures here:

Fixed. There was both lost arguments from conflict resolving, and then a bad gnuarmemb compiler causing local failures.

I'm seeing the same here, with the latest code. It doesn't find GCC, and seems to fall back to the default C compiler on my system (using OS X here): /Library/Developer/CommandLineTools/usr/bin/cc ...

yes, the use of the host compiler is caused by this:
https://github.com/zephyrproject-rtos/trusted-firmware-m/blob/master/psa-arch-tests/api-tests/CMakeLists.txt#L415-L436

Where the compiler is not passed on, but a C compiler is being looked up here:
https://github.com/zephyrproject-rtos/trusted-firmware-m/blob/51cdecd6f9e6b0aa66da45db22f4b478183d472f/psa-arch-tests/api-tests/tools/scripts/target_cfg/CMakeLists.txt#L29

project(TargetConfigGen LANGUAGES C)

so that actually mean there is some undocumented requirements when using TF-M.
May not be a problem on Linux or MacOS, but this could make it harder for Windows users.

microbuilder · 2021-05-07T09:43:12Z

@tejlmand The psa-arch-tests problem is a separate issue, so I'm OK with this PR as is, but we will need to resolve the cmake issue with the arch tests. Thanks for pointing the source of the problem out.

microbuilder · 2021-05-07T11:27:10Z

@tejlmand Filed an issue here, since this should really be fixed upstream, but this gives us something to track: #34962

Follow-up: zephyrproject-rtos#34868 The CMAKE_ARGS was accidentally lost during work on zephyrproject-rtos#34868. This commit fixes that by re-adding `CMAKE_ARGS` as multi value arg. Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>

Follow-up: #34868 The CMAKE_ARGS was accidentally lost during work on #34868. This commit fixes that by re-adding `CMAKE_ARGS` as multi value arg. Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>

... trusted_firmware_build Follow-up: zephyrproject-rtos#34868 The CMAKE_ARGS was accidentally lost during work on zephyrproject-rtos#34868. This commit fixes that by re-adding `CMAKE_ARGS` as multi value arg. Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>

Fixes: zephyrproject-rtos#36101 The move of CMake invocation to a dedicated custom target, see zephyrproject-rtos#34868 results in tfm_cmake to always be considered out-of-date, causing CMake to be reinvoked in the TF-M Binary dir, which again results in the build command to rebuild. This commit moves the invocation to a custom command with the CMakeCache.txt as output. The custom target tfm_cmake is updated to depend on CMakeCache.txt. This mean that CMake for TF-M will only be invoked inside the Zephyr build command if that file is missing. If the CMakeCache.txt file is updated or TF-M CMake or source code is modified, then the build command inside the TF-M build folder will ensure correct re-run of CMake from within the TF-M build folder. This ensures that TF-M will still rebuild if TF-M code is modified, while at the same time avoid unnecessary rebuilds of TF-M code. Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>

Fixes: #36101 The move of CMake invocation to a dedicated custom target, see #34868 results in tfm_cmake to always be considered out-of-date, causing CMake to be reinvoked in the TF-M Binary dir, which again results in the build command to rebuild. This commit moves the invocation to a custom command with the CMakeCache.txt as output. The custom target tfm_cmake is updated to depend on CMakeCache.txt. This mean that CMake for TF-M will only be invoked inside the Zephyr build command if that file is missing. If the CMakeCache.txt file is updated or TF-M CMake or source code is modified, then the build command inside the TF-M build folder will ensure correct re-run of CMake from within the TF-M build folder. This ensures that TF-M will still rebuild if TF-M code is modified, while at the same time avoid unnecessary rebuilds of TF-M code. Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no>

... trusted_firmware_build Follow-up: zephyrproject-rtos#34868 The CMAKE_ARGS was accidentally lost during work on zephyrproject-rtos#34868. This commit fixes that by re-adding `CMAKE_ARGS` as multi value arg. Signed-off-by: Torsten Rasmussen <Torsten.Rasmussen@nordicsemi.no> (cherry picked from commit b8ad3c4)

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tejlmand changed the title ~~Kconfig: tfm: support for custom CMake args when building TF-M~~ cmake: tfm: support for custom CMake args when building TF-M May 7, 2021

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doc: release: add remaining release notes for TF-M, and list of new boards #34930

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