bpf: add new BPF_BTF_GET_NEXT_ID syscall command

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Add a new command for the bpf() system call: BPF_BTF_GET_NEXT_ID is used
to cycle through all BTF objects loaded on the system.

The motivation is to be able to inspect (list) all BTF objects presents
on the system.

Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>

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Quentin Monnet 2019-08-20 10:31:50 +01:00 • committed by Alexei Starovoitov

parent 098454362a

commit 1b9ed84ecf

4 changed files with 10 additions and 2 deletions

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3

include/linux/bpf.h

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1

include/uapi/linux/bpf.h

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4

kernel/bpf/btf.c

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4

kernel/bpf/syscall.c

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