[PATCH net-next 2/2] samples/bpf: fix bpf loader

[Alexei Starovoitov <ast@fb.com>]

llvm can emit relocations into sections other than program code
(like debug info sections). Ignore them during parsing of elf file

Signed-off-by: Alexei Starovoitov <ast@kernel.org>
---
 samples/bpf/bpf_load.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/samples/bpf/bpf_load.c b/samples/bpf/bpf_load.c
index 97913e109b14..62f54d6eb8bf 100644
--- a/samples/bpf/bpf_load.c
+++ b/samples/bpf/bpf_load.c
@@ -317,6 +317,10 @@ int load_bpf_file(char *path)
 				    &shdr_prog, &data_prog))
 				continue;
 
+			if (shdr_prog.sh_type != SHT_PROGBITS ||
+			    !(shdr_prog.sh_flags & SHF_EXECINSTR))
+				continue;
+
 			insns = (struct bpf_insn *) data_prog->d_buf;
 
 			processed_sec[shdr.sh_info] = true;
-- 
2.8.0