Known issue: next-20250723 arm atags_to_fdt.c undefined reference to `__sanitizer_cov_stack_depth' New

Regressions noticed while building arm builds with gcc-13 and gcc-8 toolchains on the Linux next-20250723 to next-20250725 tags.

First seen on the Linux next-20250723

Good: next-20250722

Bad: next-20250723 and next-20250725

Regression Analysis:

• New regression? Yes

• Reproducibility? Yes

Build regressions

• arm, build

• gcc-13-lkftconfig-hardening

• gcc-8-lkftconfig-hardening

Build regression: next-20250723 arm atags_to_fdt.c undefined reference to `__sanitizer_cov_stack_depth'

Reported-by: Linux Kernel Functional Testing lkft@linaro.org

Build log

arm-linux-gnueabihf-ld: arch/arm/boot/compressed/atags_to_fdt.o: in function `atags_to_fdt':
arch/arm/boot/compressed/atags_to_fdt.c:135:(.text+0x118): undefined reference to `__sanitizer_cov_stack_depth'

Source

• Git tree: https://kernel.googlesource.com/pub/scm/linux/kernel/git/next/linux-next.git
• Project: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250725/
• Git sha: d7af19298454ed155f5cf67201a70f5cf836c842
• Git describe: 6.16.0-rc7-next-20250725
• kernel version: next-20250723 next-20250725
• Architectures: arm
• Toolchains: gcc-8 gcc-13
• Kconfigs: hardening

Test

• Test log: https://qa-reports.linaro.org/api/testruns/29244662/log_file/
• Test details: https://regressions.linaro.org/lkft/linux-next-master/next-20250725/log-parser-build-gcc/general-ld-undefined-reference-undefined-reference-to-__sanitizer_cov_stack_depth/
• Test history: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250725/testrun/29244662/suite/build/test/gcc-13-lkftconfig-hardening/history/
• Test plan: https://tuxapi.tuxsuite.com/v1/groups/linaro/projects/lkft/builds/30LiHIefapv5cGlikeKrTz4lSKR
• Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/30LiHIefapv5cGlikeKrTz4lSKR/
• Kernel config: https://storage.tuxsuite.com/public/linaro/lkft/builds/30LiHIefapv5cGlikeKrTz4lSKR/config

steps to reproduce

   *  tuxmake --runtime podman --target-arch arm --toolchain gcc-13 \
              --kconfig defconfig --kconfig-add https://gitlab.com/Linaro/lkft/kernel-fragments/-/raw/main/netdev.config \
              --kconfig-add https://gitlab.com/Linaro/lkft/kernel-fragments/-/raw/main/systemd.config \
              --kconfig-add CONFIG_ARM_LPAE=y \
              --kconfig-add hardening.config