Re: [PATCH v12 26/39] arm64/ptrace: Expose GCS via ptrace and core files

On Mon, Sep 02, 2024 at 07:58:28PM +0100, Mark Brown wrote:

On Mon, Sep 02, 2024 at 07:56:32PM +0100, Catalin Marinas wrote:

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On Thu, Aug 29, 2024 at 12:27:42AM +0100, Mark Brown wrote:

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+static int gcs_get(struct task_struct *target,

•    const struct user_regset *regset,
  

•    struct membuf to)
  

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• if (target == current)

• gcs_preserve_current_state();
  

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What's the use-case where target == current and do we need something similar for gcs_set()?

IIRC core file generation so no.

Ah, true. Makes sense.