Commit 42d1d53f authored by Alexei Starovoitov's avatar Alexei Starovoitov Committed by Daniel Borkmann
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libbpf: Add support for bpf iter in light skeleton. 



bpf iterator programs should use bpf_link_create to attach instead of
bpf_raw_tracepoint_open like other tracing programs.

Signed-off-by: default avatarAlexei Starovoitov <ast@kernel.org>
Signed-off-by: default avatarDaniel Borkmann <daniel@iogearbox.net>
Acked-by: default avatarMartin KaFai Lau <kafai@fb.com>
Link: https://lore.kernel.org/bpf/20220131220528.98088-2-alexei.starovoitov@gmail.com
parent 533de4ae

tools/bpf/bpftool/gen.c

+4 −1
Original line number Diff line number Diff line
@@ -384,6 +384,9 @@ static void codegen_attach_detach(struct bpf_object *obj, const char *obj_name) 
			printf("\tint fd = bpf_raw_tracepoint_open(\"%s\", prog_fd);\n", tp_name);

			break;

		case BPF_PROG_TYPE_TRACING:

			if (bpf_program__expected_attach_type(prog) == BPF_TRACE_ITER)

				printf("\tint fd = bpf_link_create(prog_fd, 0, BPF_TRACE_ITER, NULL);\n");

			else

				printf("\tint fd = bpf_raw_tracepoint_open(NULL, prog_fd);\n");

			break;

		default: