Re: next-20250319: arm shmobile_defconfig trace.c undefined type 'struct module'

[Naresh Kamboju]

On Wed, 19 Mar 2025 at 17:01, Naresh Kamboju <naresh.kamboju@xxxxxxxxxx> wrote:
>
> Regressions on arm the shmobile_defconfig builds failed with clang-20 and gcc-13
>
> First seen on the next-20250312
>  Good: next-20250311
>  Bad:  next-20250312 .. next-20250319
>
> Regressions found on arm:
>  - gcc-13-shmobile_defconfig
>  - gcc-8-shmobile_defconfig
>  - clang-20-shmobile_defconfig
>
> Regression Analysis:
>  - New regression? Yes
>  - Reproducible? Yes
>
> Build regression: arm shmobile_defconfig trace.c undefined type 'struct module'
> Reported-by: Linux Kernel Functional Testing <lkft@xxxxxxxxxx>

Anders bisected this build regression to the following commit,

# first bad commit:
   [dca91c1c54686914dec4dabea8bae4f365c02007]
   tracing: Have persistent trace instances save module addresses

Lore link,
 - https://lore.kernel.org/all/CA+G9fYs62qxt1PajEp2A8uUmQFeAsC2JBV2wuspbAxz_hFF7CA@xxxxxxxxxxxxxx/

>
> ## Build log
> kernel/trace/trace.c: In function 'save_mod':
> kernel/trace/trace.c:6036:45: error: invalid use of undefined type
> 'struct module'
>  6036 |         entry->mod_addr = (unsigned long)mod->mem[MOD_TEXT].base;
>       |                                             ^~
> kernel/trace/trace.c:6036:51: error: 'MOD_TEXT' undeclared (first use
> in this function)
>  6036 |         entry->mod_addr = (unsigned long)mod->mem[MOD_TEXT].base;
>       |                                                   ^~~~~~~~
>
> ## Source
> * Kernel version: 6.14.0-rc7
> * Git tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
> * Git sha: ff7f9b199e3f4cc7d61df5a9a26a7cbb5c1492e6
> * Git describe: next-20250319
> * Project details:
> https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250319
>
> ## Build
> * Build log: https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250319/testrun/27672563/suite/build/test/gcc-13-shmobile_defconfig/log
> * Build history:
> https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250319/testrun/27672563/suite/build/test/gcc-13-shmobile_defconfig/history/
> * Build details:
> https://qa-reports.linaro.org/lkft/linux-next-master/build/next-20250319/testrun/27672563/suite/build/test/gcc-13-shmobile_defconfig
> * Build link: https://storage.tuxsuite.com/public/linaro/lkft/builds/2uX2E69ngTqvrymzOdYQz0JQ16z/
> * Kernel config:
> https://storage.tuxsuite.com/public/linaro/lkft/builds/2uX2E69ngTqvrymzOdYQz0JQ16z/config
>
> ## Steps to reproduce
>  - tuxmake --runtime podman --target-arch arm --toolchain gcc-13
> --kconfig shmobile_defconfig
>
>
> --
> Linaro LKFT
> https://lkft.linaro.org