Re: [PATCH v3 00/15] kbuild: yet another series of cleanups (modpost, LTO, MODULE_REL_CRCS)

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Hi Masahiro,

On Thu, May 05, 2022 at 04:22:29PM +0900, Masahiro Yamada wrote:
> 
> This is the third batch of cleanups in this development cycle.
> 
> Major changes in v3:
> 
>  - Generate symbol CRCs as C code, and remove CONFIG_MODULE_REL_CRCS.
> 
> Major changes in v2:
> 
>  - V1 did not work with CONFIG_MODULE_REL_CRCS.
>    I fixed this for v2.
> 
>  - Reflect some review comments in v1
> 
>  - Refactor the code more
> 
>  - Avoid too long argument error
> 
> 
> Masahiro Yamada (15):
>   modpost: mitigate false-negatives for static EXPORT_SYMBOL checks
>   modpost: change the license of EXPORT_SYMBOL to bool type
>   modpost: merge add_{intree_flag,retpoline,staging_flag} to add_header
>   modpost: move *.mod.c generation to write_mod_c_files()
>   kbuild: generate a list of objects in vmlinux
>   kbuild: record symbol versions in *.cmd files
>   modpost: extract symbol versions from *.cmd files
>   kbuild: link symbol CRCs at final link, removing
>     CONFIG_MODULE_REL_CRCS
>   kbuild: stop merging *.symversions
>   genksyms: adjust the output format to modpost
>   kbuild: do not create *.prelink.o for Clang LTO or IBT
>   modpost: simplify the ->is_static initialization
>   modpost: use hlist for hash table implementation
>   kbuild: make built-in.a rule robust against too long argument error
>   kbuild: make *.mod rule robust against too long argument error

I merged this series into mainline and tested an Arch Linux
x86_64 configuration and Fedora aarch64 configuration with ThinLTO and
saw no new warnings or issues. Modules loaded just fine in QEMU for Arch
Linux and I did not notice any boot issues or warnings.

Tested-by: Nathan Chancellor <nathan@xxxxxxxxxx>

Cheers,
Nathan



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