libbpf: Support loading individual progs (29cd77f4) · Commits · 戴 / test

Allow the individual program load to be invoked. This will help with testing, where a single ELF may contain several sections, some of which denote subprograms that are expected to fail verification, along with some which are expected to pass verification. By allowing programs to be iterated and individually loaded, each program can be independently checked against its expected verification result. Signed-off-by:

Joe Stringer <joe@wand.net.nz> Acked-by:

Alexei Starovoitov <ast@kernel.org> Signed-off-by:

Daniel Borkmann <daniel@iogearbox.net>

tools/lib/bpf/libbpf.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -228,7 +228,7 @@ struct bpf_object {
		};
		#define obj_elf_valid(o) ((o)->efile.elf)

		static void bpf_program__unload(struct bpf_program *prog)
		void bpf_program__unload(struct bpf_program *prog)
		{
		int i;

		@@ -1375,7 +1375,7 @@ out:
		return ret;
		}

		static int
		int
		bpf_program__load(struct bpf_program *prog,
		char *license, u32 kern_version)
		{

tools/lib/bpf/libbpf.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -128,10 +128,13 @@ void bpf_program__set_ifindex(struct bpf_program *prog, __u32 ifindex);

		const char bpf_program__title(struct bpf_program prog, bool needs_copy);

		int bpf_program__load(struct bpf_program prog, char license,
		u32 kern_version);
		int bpf_program__fd(struct bpf_program *prog);
		int bpf_program__pin_instance(struct bpf_program prog, const char path,
		int instance);
		int bpf_program__pin(struct bpf_program prog, const char path);
		void bpf_program__unload(struct bpf_program *prog);

		struct bpf_insn;

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