diff options
| author |   Kui-Feng Lee <kuifeng@fb.com> | 2022-05-10 13:59:19 -0700 |
|---|---|---|
| committer |   Andrii Nakryiko <andrii@kernel.org> | 2022-05-10 17:50:40 -0700 |
| commit | f7e0beaf39d3868dc700d4954b26cf8443c5d423 (patch) | |
| tree | 61ebf37dc2ffb763514ea1d9314bb915e6ca6618 /tools | |
| parent | Merge branch 'bpf: Speed up symbol resolving in kprobe multi link' (diff) | |
| download | linux-dev-f7e0beaf39d3868dc700d4954b26cf8443c5d423.tar.xz linux-dev-f7e0beaf39d3868dc700d4954b26cf8443c5d423.zip | |
bpf, x86: Generate trampolines from bpf_tramp_links
Replace struct bpf_tramp_progs with struct bpf_tramp_links to collect
struct bpf_tramp_link(s) for a trampoline. struct bpf_tramp_link
extends bpf_link to act as a linked list node.
arch_prepare_bpf_trampoline() accepts a struct bpf_tramp_links to
collects all bpf_tramp_link(s) that a trampoline should call.
Change BPF trampoline and bpf_struct_ops to pass bpf_tramp_links
instead of bpf_tramp_progs.
Signed-off-by: Kui-Feng Lee <kuifeng@fb.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Acked-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20220510205923.3206889-2-kuifeng@fb.com
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/bpf/bpftool/link.c | 1 | ||||
| -rw-r--r-- | tools/include/uapi/linux/bpf.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/tools/bpf/bpftool/link.c b/tools/bpf/bpftool/link.c index 8fb0116f9136..6353a789322b 100644 --- a/tools/bpf/bpftool/link.c +++ b/tools/bpf/bpftool/link.c @@ -23,6 +23,7 @@ static const char * const link_type_name[] = { [BPF_LINK_TYPE_XDP] = "xdp", [BPF_LINK_TYPE_PERF_EVENT] = "perf_event", [BPF_LINK_TYPE_KPROBE_MULTI] = "kprobe_multi", + [BPF_LINK_TYPE_STRUCT_OPS] = "struct_ops", }; static struct hashmap *link_table; diff --git a/tools/include/uapi/linux/bpf.h b/tools/include/uapi/linux/bpf.h index 95a3d1ff6255..3d032ea1b6a3 100644 --- a/tools/include/uapi/linux/bpf.h +++ b/tools/include/uapi/linux/bpf.h @@ -1013,6 +1013,7 @@ enum bpf_link_type { BPF_LINK_TYPE_XDP = 6, BPF_LINK_TYPE_PERF_EVENT = 7, BPF_LINK_TYPE_KPROBE_MULTI = 8, + BPF_LINK_TYPE_STRUCT_OPS = 9, MAX_BPF_LINK_TYPE, }; |