diff --git a/libbpf_android/Android.bp b/libbpf_android/Android.bp index c369c8c..956fd93 100644 --- a/libbpf_android/Android.bp +++ b/libbpf_android/Android.bp @@ -54,6 +54,7 @@ cc_library { "libbpf_android_headers" ], export_header_lib_headers: ["libbpf_android_headers"], + export_shared_lib_headers: ["libbpf"], local_include_dirs: ["include"], defaults: ["bpf_defaults"], diff --git a/libbpf_android/Loader.cpp b/libbpf_android/Loader.cpp index fb4e36c..021e79f 100644 --- a/libbpf_android/Loader.cpp +++ b/libbpf_android/Loader.cpp @@ -36,6 +36,7 @@ #include #include +#include #include #include @@ -589,5 +590,11 @@ int loadProg(const char* elfPath) { return ret; } +void waitForProgsLoaded() { + while (!android::base::WaitForProperty("bpf.progs_loaded", "1", std::chrono::seconds(5))) { + ALOGW("Waited 5s for bpf.progs_loaded, still waiting..."); + } +} + } // namespace bpf } // namespace android diff --git a/libbpf_android/include/libbpf_android.h b/libbpf_android/include/libbpf_android.h index cea707c..0a01c85 100644 --- a/libbpf_android/include/libbpf_android.h +++ b/libbpf_android/include/libbpf_android.h @@ -23,8 +23,13 @@ namespace android { namespace bpf { + // BPF loader implementation. Loads an eBPF ELF object int loadProg(const char* elfpath); + +// Wait for bpfloader to load BPF programs. +void waitForProgsLoaded(); + } // namespace bpf } // namespace android