[PATCH 2/3] bpf: introduce bpf_jit_insn_aux_data

[Alexei Starovoitov]

On Fri, Mar 6, 2026 at 2:13 PM Yeoreum Yun <yeoreum.yun at arm.com> wrote:
>
> This patch prepares for fixing the BTI exception related to gotox.
>
> bpf_jit_insn_aux_data contains per-instruction auxiliary data for the JIT,
> extracted from env->insn_aux_data.
>
> For example, it is used to determine whether an instruction is
> a destination of a gotox, allowing the JIT to emit
> the appropriate BTI instruction at that location in arm64.
>
> Signed-off-by: Yeoreum Yun <yeoreum.yun at arm.com>
> ---
>  include/linux/bpf.h    |  6 +++++
>  include/linux/filter.h |  4 +++
>  kernel/bpf/core.c      | 59 +++++++++++++++++++++++++++++++++++++++++-
>  kernel/bpf/verifier.c  | 30 ++++++++++++++++++++-
>  4 files changed, 97 insertions(+), 2 deletions(-)

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