On Thu, Jul 20, 2023 at 05:30:48PM +0100, Valentin Schneider wrote:
Later commits will depend on having no runtime-mutable text in early entry code. (ab)use the .noinstr section as a marker of early entry code and warn about static keys used in it that can be flipped at runtime.
Similar to my comment on patch 13, this could also use a short justification for adding the feature, i.e. why runtime-mutable text isn't going to be allowed in .noinstr.
Also, please add a short description of the warning (and why it exists) to tools/objtool/Documentation/objtool.txt.