apollo4x: build failure on `kernel/cache/` Twister tests
pillo79 opened this issue · comments
Describe the bug
The kernel/cache test suite fails on the apollo4p_evb and apollo4p_blue_kxr_evb boards due to missing symbols. It appears that (the HAL?) does not declare the SCB_* cache control functions that are used by arch/arm/core/cortex_m/cache.c when CONFIG_CACHE_MANAGEMENT is defined.
To Reproduce
Run west twister -c -T tests/kernel/cache/ -p apollo4p_evb.
On current Zephyr main (f5ce047, zephyrproject-rtos/hal_ambiq@f6858cb), tests fail to build with this error:
FAILED: zephyr/arch/arch/arm/core/cortex_m/CMakeFiles/arch__arm__core__cortex_m.dir/cache.c.obj
ccache zephyr-sdk-0.16.4/arm-zephyr-eabi/bin/arm-zephyr-eabi-gcc -DKERNEL -DK_HEAP_MEM_POOL_SIZE=0 -DTC_RUNID=c0f20f410652dfe4df7d454c06f392ed -D__PROGRAM_START -D__ZEPHYR_SUPERVISOR__ -D__ZEPHYR__=1 -Izephyr/kernel/include -Izephyr/arch/arm/include -Izephyr/include -Izephyr/twister-out/apollo4p_evb/tests/kernel/cache/kernel.cache.api.minimallibc/zephyr/include/generated -Izephyr/soc/ambiq -Izephyr/soc/ambiq/apollo4x/. -Izephyr/soc/ambiq/. -Izephyr/subsys/testsuite/include -Izephyr/subsys/testsuite/ztest/include -Icore/include -Imodules/hal/cmsis/CMSIS/Core/Include -Izephyr/modules/cmsis/. -Imodules/hal/ambiq/CMSIS/AmbiqMicro/Include -Imodules/hal/ambiq/utils -Imodules/hal/ambiq/mcu/apollo4p -Imodules/hal/ambiq/mcu/apollo4p/hal -Imodules/hal/ambiq/components/bluetooth -isystem zephyr/lib/libc/minimal/include -isystem zephyr/lib/libc/common/include -isystem zephyr-sdk-0.16.4/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/include -isystem zephyr-sdk-0.16.4/arm-zephyr-eabi/bin/../lib/gcc/arm-zephyr-eabi/12.2.0/include-fixed -Wshadow -fno-strict-aliasing -Werror -Os -imacros zephyr/twister-out/apollo4p_evb/tests/kernel/cache/kernel.cache.api.minimallibc/zephyr/include/generated/autoconf.h -ffreestanding -fno-common -g -gdwarf-4 -fdiagnostics-color=always -mcpu=cortex-m4 -mthumb -mabi=aapcs -mfp16-format=ieee --sysroot=zephyr-sdk-0.16.4/arm-zephyr-eabi/arm-zephyr-eabi -imacros zephyr/include/zephyr/toolchain/zephyr_stdint.h -Wall -Wformat -Wformat-security -Wno-format-zero-length -Wdouble-promotion -Wno-pointer-sign -Wpointer-arith -Wexpansion-to-defined -Wno-unused-but-set-variable -Werror=implicit-int -fno-pic -fno-pie -fno-asynchronous-unwind-tables -fno-reorder-functions --param=min-pagesize=0 -fno-defer-pop -fmacro-prefix-map=zephyr/tests/kernel/cache=CMAKE_SOURCE_DIR -fmacro-prefix-map=zephyr=ZEPHYR_BASE -fmacro-prefix-map=ZephyrCore=WEST_TOPDIR -ffunction-sections -fdata-sections -std=c99 -nostdinc -MD -MT zephyr/arch/arch/arm/core/cortex_m/CMakeFiles/arch__arm__core__cortex_m.dir/cache.c.obj -MF zephyr/arch/arch/arm/core/cortex_m/CMakeFiles/arch__arm__core__cortex_m.dir/cache.c.obj.d -o zephyr/arch/arch/arm/core/cortex_m/CMakeFiles/arch__arm__core__cortex_m.dir/cache.c.obj -c zephyr/arch/arm/core/cortex_m/cache.c
zephyr/arch/arm/core/cortex_m/cache.c: In function 'arch_dcache_enable':
zephyr/arch/arm/core/cortex_m/cache.c:20:9: error: implicit declaration of function 'SCB_EnableDCache' [-Werror=implicit-function-declaration]
20 | SCB_EnableDCache();
| ^~~~~~~~~~~~~~~~
(and all other SCB_* functions).
Impact
CI failures (sample log) on recent LLEXT PRs (such as #72358).
I will take a look but we do not define and SCB_ cache functions.
I will create a PR soon with the implementation. Thank you for pointing this out!