Fail to compile tests/subsys/dsp/basicmath/zdsp.basicmath with xt-clang, for imx8mp_evk/mimx8ml8/adsp

[iuliana-prodan]

Describe the bug When compiling tests/subsys/dsp/basicmath/, forimx8mp_evk/mimx8ml8/adsp with xt-clang I get:

xt-ld: app/libapp.a(q7.c.obj):(.literal.test_zdsp_add_q7+0x18): undefined reference to `malloc'
xt-ld: app/libapp.a(q7.c.obj):(.literal.test_zdsp_add_q7+0x1c): undefined reference to `log10f'
xt-ld: app/libapp.a(q7.c.obj):(.literal.test_zdsp_add_q7+0x20): undefined reference to `__fpclassifyf'
xt-ld: app/libapp.a(q7.c.obj):(.literal.test_zdsp_add_q7+0x24): undefined reference to `free'
xt-ld: app/libapp.a(q7.c.obj):(.literal.test_zdsp_add_q7_in_place+0x4): undefined reference to `memcpy'
xt-ld: app/libapp.a(q7.c.obj): in function `test_zdsp_add_q7':
/opt/samba/nxa06898/xcc/zephyrproject/zephyr/tests/subsys/dsp/basicmath/src/q7.c:26: undefined reference to `malloc'
xt-ld: app/libapp.a(q7.c.obj): in function `arm_snr_q7':

Same works with gcc from zephyr-sdk (zephyr-sdk-0.16.4/xtensa-nxp_imx8m_adsp_zephyr-elf/bin/xtensa-nxp_imx8m_adsp_zephyr-elf-gcc)

I can compile hello_world sample with xt-clang.

To Reproduce Steps to reproduce the behavior:

1. set xt-clang
2. west build -p -b imx8mp_evk/mimx8ml8/adsp -s tests/subsys/dsp/basicmath/
3. See error

Expected behavior Test should compile.

Impact Cannot implement Xtensa backend for ZDSP tests.

Environment (please complete the following information):

• OS: Linux
• Toolchain: Xtensa Toolchain version RI-2023.11-linux, Xtensa Core = hifi4_mscale_v2_0_2_prod
• Commit SHA : zephyr afc7c20d5a67e0e95c7e5bee1e0822c4832335ea

Additional context With gcc compiles with west build -p -b imx8mp_evk/mimx8ml8/adsp -s tests/subsys/dsp/basicmath/ or twister:

zephyrproject/zephyr$ git diff
diff --git a/tests/subsys/dsp/basicmath/testcase.yaml b/tests/subsys/dsp/basicmath/testcase.yaml
index 7311f8cb906..6aed37ffacf 100644
--- a/tests/subsys/dsp/basicmath/testcase.yaml
+++ b/tests/subsys/dsp/basicmath/testcase.yaml
@@ -6,6 +6,7 @@ tests:
       - sam_e70_xplained/same70q21
       - mps2/an521/cpu0
       - native_sim
+      - imx8mp_evk/mimx8ml8/adsp
     tags: zdsp
     min_flash: 128
     min_ram: 64

/zephyrproject/zephyr$ ./scripts/twister -p imx8mp_evk/mimx8ml8/adsp -s tests/subsys/dsp/basicmath/zdsp.basicmath
ZEPHYR_BASE unset, using "/opt/samba/nxa06898/zephyrproject/zephyr"
Renaming output directory to /opt/samba/nxa06898/zephyrproject/zephyr/twister-out.1
INFO    - Using Ninja..
INFO    - Zephyr version: v3.6.0-723-gafc7c20d5a67
INFO    - Using 'zephyr' toolchain.
INFO    - Building initial testsuite list...
INFO    - Writing JSON report /opt/samba/nxa06898/zephyrproject/zephyr/twister-out/testplan.json
INFO    - JOBS: 8
INFO    - Adding tasks to the queue...
INFO    - Added initial list of jobs to queue
INFO    - Total complete:    1/   1  100%  skipped:    0, failed:    0, error:    0
INFO    - 1 test scenarios (1 test instances) selected, 0 configurations skipped (0 by static filter, 0 at runtime).
INFO    - 1 of 1 test configurations passed (100.00%), 0 failed, 0 errored, 0 skipped with 0 warnings in 15.92 seconds
INFO    - In total 408 test cases were executed, 0 skipped on 1 out of total 699 platforms (0.14%)
INFO    - 0 test configurations executed on platforms, 1 test configurations were only built.
INFO    - Saving reports...
INFO    - Writing JSON report /opt/samba/nxa06898/zephyrproject/zephyr/twister-out/twister.json
INFO    - Writing xunit report /opt/samba/nxa06898/zephyrproject/zephyr/twister-out/twister.xml...
INFO    - Writing xunit report /opt/samba/nxa06898/zephyrproject/zephyr/twister-out/twister_report.xml...
INFO    - Run completed

[github-actions[bot]]

Hi @iuliana-prodan! We appreciate you submitting your first issue for our open-source project. 🌟

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[iuliana-prodan]

^^ @stephanosio @nashif @yperess @SiyuanCheng-CN @dcpleung @andyross

[github-actions[bot]]

This issue has been marked as stale because it has been open (more than) 60 days with no activity. Remove the stale label or add a comment saying that you would like to have the label removed otherwise this issue will automatically be closed in 14 days. Note, that you can always re-open a closed issue at any time.

[dcpleung]

Hm... since it's with xt-clang, is it possible that your toolchain does not have the necessary functions in its C library??? (which should not be the case...) Maybe it requires some additional compiler flags to be passed?

[github-actions[bot]]

This issue has been marked as stale because it has been open (more than) 60 days with no activity. Remove the stale label or add a comment saying that you would like to have the label removed otherwise this issue will automatically be closed in 14 days. Note, that you can always re-open a closed issue at any time.