[PATCH iproute2] bpf: Print section name when hitting non ld64 issue

It's useful to be able to tell which section is being processed in the
ELF when this error is triggered, so print that detail.

Signed-off-by: Joe Stringer <redacted>
---
 lib/bpf.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/lib/bpf.c b/lib/bpf.c
index 2db151e4dd3c..c38d92d87759 100644
--- a/lib/bpf.c
+++ b/lib/bpf.c

@@ -2039,6 +2039,7 @@ static int bpf_apply_relo_data(struct bpf_elf_ctx *ctx,
 		    insns[ioff].code != (BPF_LD | BPF_IMM | BPF_DW)) {
 			fprintf(stderr, "ELF contains relo data for non ld64 instruction at offset %u! Compiler bug?!\n",
 				ioff);
+			fprintf(stderr, " - Current section: %s\n", data_relo->sec_name);
 			if (ioff < num_insns &&
 			    insns[ioff].code == (BPF_JMP | BPF_CALL))
 				fprintf(stderr, " - Try to annotate functions with always_inline attribute!\n");

-- 
2.14.1

On 02/28/2018 11:16 PM, Joe Stringer wrote:

It's useful to be able to tell which section is being processed in the
ELF when this error is triggered, so print that detail.

Signed-off-by: Joe Stringer <redacted>

Acked-by: Daniel Borkmann <daniel@iogearbox.net>

On Wed, 28 Feb 2018 14:16:42 -0800
Joe Stringer [off-list ref] wrote:

It's useful to be able to tell which section is being processed in the
ELF when this error is triggered, so print that detail.

Signed-off-by: Joe Stringer <redacted>

Applied