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SubjectRe: [PATCH v2 05/28] objtool: Add a pass for generating __mcount_loc
On Thu, Sep 03, 2020 at 01:30:30PM -0700, Sami Tolvanen wrote:
> From: Peter Zijlstra <>
> Add the --mcount option for generating __mcount_loc sections
> needed for dynamic ftrace. Using this pass requires the kernel to
> be compiled with -mfentry and CC_USING_NOP_MCOUNT to be defined
> in Makefile.
> Link:
> Signed-off-by: Peter Zijlstra <>

Hmm, I'm not sure why this hasn't gotten picked up yet. Is this expected
to go through -tip or something else?

Reviewed-by: Kees Cook <>

Kees Cook

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