Hi, jirka
Sadly, we can't include libbpf_internal.h in trace_helpers.{h,c}.
we only have the following headers when compile samples/bpf/:
tree of samples/bpf/libbpf/
+-- bpf_helper_defs.h
+-- include
| '-- bpf
| +-- bpf_core_read.h
| +-- bpf_endian.h
| +-- bpf.h
| +-- bpf_helper_defs.h
| +-- bpf_helpers.h
| +-- bpf_tracing.h
| +-- btf.h
| +-- libbpf_common.h
| +-- libbpf.h
| +-- libbpf_legacy.h
| +-- libbpf_version.h
| +-- skel_internal.h
| '-- usdt.bpf.h
+-- libbpf.a
No libbpf_internal.h here.
What if we add a declaration to libbpf_ensure_mem() in trace_helpers.c?
Good Day,
Rong Tao
