From db6a71dd9a75fb07f6758582299acfe1ab5827dc Mon Sep 17 00:00:00 2001
From: Alexei Starovoitov <ast@fb.com>
Date: Tue, 22 Nov 2016 16:52:09 -0800
Subject: [PATCH] samples/bpf: fix bpf loader

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>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
 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;