From ab8fc393b27cd2d6dd1ced1ba2358ddcd123fc15 Mon Sep 17 00:00:00 2001 From: Andrii Nakryiko Date: Wed, 13 Dec 2023 11:08:36 -0800 Subject: libbpf: move feature detection code into its own file It's quite a lot of well isolated code, so it seems like a good candidate to move it out of libbpf.c to reduce its size. Acked-by: John Fastabend Signed-off-by: Andrii Nakryiko Link: https://lore.kernel.org/r/20231213190842.3844987-5-andrii@kernel.org Signed-off-by: Alexei Starovoitov --- tools/lib/bpf/libbpf_internal.h | 12 +++++++++++- 1 file changed, 11 insertions(+), 1 deletion(-) (limited to 'tools/lib/bpf/libbpf_internal.h') diff --git a/tools/lib/bpf/libbpf_internal.h b/tools/lib/bpf/libbpf_internal.h index 754a432335e4..db4a499c0ec5 100644 --- a/tools/lib/bpf/libbpf_internal.h +++ b/tools/lib/bpf/libbpf_internal.h @@ -360,10 +360,20 @@ enum kern_feature_id { __FEAT_CNT, }; -struct kern_feature_cache; +enum kern_feature_result { + FEAT_UNKNOWN = 0, + FEAT_SUPPORTED = 1, + FEAT_MISSING = 2, +}; + +struct kern_feature_cache { + enum kern_feature_result res[__FEAT_CNT]; +}; + bool feat_supported(struct kern_feature_cache *cache, enum kern_feature_id feat_id); bool kernel_supports(const struct bpf_object *obj, enum kern_feature_id feat_id); +int probe_kern_syscall_wrapper(void); int probe_memcg_account(void); int bump_rlimit_memlock(void); -- cgit v1.2.3