Pahole currently isn't able to generate BTF for static functions in kernel modules, so make sure traced sidecar function is global. Signed-off-by: Andrii Nakryiko <andrii@xxxxxxxxxx> --- tools/testing/selftests/bpf/bpf_sidecar/bpf_sidecar.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/tools/testing/selftests/bpf/bpf_sidecar/bpf_sidecar.c b/tools/testing/selftests/bpf/bpf_sidecar/bpf_sidecar.c index 46f48c20d99b..a2f6d4a15a3f 100644 --- a/tools/testing/selftests/bpf/bpf_sidecar/bpf_sidecar.c +++ b/tools/testing/selftests/bpf/bpf_sidecar/bpf_sidecar.c @@ -10,7 +10,7 @@ #define CREATE_TRACE_POINTS #include "bpf_sidecar-events.h" -static noinline ssize_t +noinline ssize_t bpf_sidecar_test_read(struct file *file, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t len) @@ -25,6 +25,7 @@ bpf_sidecar_test_read(struct file *file, struct kobject *kobj, return -EIO; /* always fail */ } +EXPORT_SYMBOL(bpf_sidecar_test_read); ALLOW_ERROR_INJECTION(bpf_sidecar_test_read, ERRNO); static struct bin_attribute bin_attr_bpf_sidecar_file __ro_after_init = { -- 2.24.1