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build system: warn when soft FPU is used #19688

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build system: warn when soft FPU is used #19688

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Commits on May 31, 2023

  1. dist/tools/softfpucheck: add utility to detect use of soft FPU

    @maribu
    maribu committed May 31, 2023
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  2. build system: integrate soft FPU check

    @maribu
    maribu committed May 31, 2023
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  3. REMOVE ME: limit builds

    @maribu
    maribu committed May 31, 2023
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  4. drivers/isl29020: avoid floating point arithmetic

    @maribu
    maribu committed May 31, 2023
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  5. examples/riot_and_cpp: avoid using floats

    @maribu
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  6. drivers/bmx055: use ztimer

    @maribu
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  7. drivers/bmx055: fix crazy use of FPU

    @maribu
    maribu committed May 31, 2023
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  8. sys/nosoftfpu: add module to prevent linking against soft FPU functions 

    Note: Only tested with Cortex-M.

This is useful to track down the offenders pulling in the soft FPU
functions.
    @maribu
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  9. tests/drivers/epd_bw_spi_disp_dev: fix accidental use of FPU

    @maribu
    maribu committed May 31, 2023
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  10. drivers/hih6130: avoid using floats

    @maribu
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  11. drivers/mq3: avoid use of floats

    @maribu
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  12. drivers/sx127x: avoid using floats

    @maribu
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  13. pkg/lorabasics: avoid using floats

    @maribu
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  14. pkg/libschc: fix crazy use of FPU

    @maribu
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  15. tests/pkg/lvgl: avoid using floats

    @maribu
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  16. tests/sys/bloom_bytes: avoid using floats

    @maribu
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  17. sys/phydat: avoid use of floats 

    A tiny look up table is both faster and way smaller in ROM size
than pulling in `pow()`.
    @maribu
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  18. tests/sys/ps_schedstatistics: drop unused package 

    `printf_float` seems to be unused but pulls in a lot of code. So
let's drop that.
    @maribu
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  19. drivers: disable FPU check on legacy drivers

    @maribu
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  20. sys: disable FPU check on legitimate users

    @maribu
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  21. pkg: disable FPU check on pkgs using FPU

    @maribu
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  22. tests: disable FPU check on legitimate users

    @maribu
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  23. examples: disable FPU check on legitimate users

    @maribu
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  24. cpu/esp_common: disable FPU check

    @maribu
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