Re: [PATCH v3 0/2] Fix kallsyms with CONFIG_LTO_CLANG

[Kees Cook]

On Wed, 07 Aug 2024 15:05:11 -0700, Song Liu wrote:
> With CONFIG_LTO_CLANG, the compiler/linker adds .llvm.<hash> suffix to
> local symbols to avoid duplications. Existing scripts/kallsyms sorts
> symbols without .llvm.<hash> suffix. However, this causes quite some
> issues later on. Some users of kallsyms, such as livepatch, have to match
> symbols exactly.
> 
> Address this by sorting full symbols at build time, and let kallsyms
> lookup APIs to match the symbols exactly.
> 
> [...]

Applied to for-linus/hardening, thanks!

[1/2] kallsyms: Do not cleanup .llvm.<hash> suffix before sorting symbols
      https://git.kernel.org/kees/c/020925ce9299
[2/2] kallsyms: Match symbols exactly with CONFIG_LTO_CLANG
      https://git.kernel.org/kees/c/fb6a421fb615

Take care,

-- 
Kees Cook