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authorAlexei Starovoitov <ast@fb.com>2016-11-22 16:52:09 -0800
committerDavid S. Miller <davem@davemloft.net>2016-11-24 16:04:52 -0500
commitdb6a71dd9a75fb07f6758582299acfe1ab5827dc (patch)
treec666faa713221f3177d849f99b16ad3428d7d684 /samples/bpf
parentd2b024d32d6e6f704633a8a474bd883cf9e25254 (diff)
downloadop-kernel-dev-db6a71dd9a75fb07f6758582299acfe1ab5827dc.zip
op-kernel-dev-db6a71dd9a75fb07f6758582299acfe1ab5827dc.tar.gz
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>
Diffstat (limited to 'samples/bpf')
-rw-r--r--samples/bpf/bpf_load.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/samples/bpf/bpf_load.c b/samples/bpf/bpf_load.c
index 97913e1..62f54d6 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;
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