diff options
Diffstat (limited to 'src/shared/bpf-dlopen.c')
| -rw-r--r-- | src/shared/bpf-dlopen.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/src/shared/bpf-dlopen.c b/src/shared/bpf-dlopen.c index 15301ae..f00dbea 100644 --- a/src/shared/bpf-dlopen.c +++ b/src/shared/bpf-dlopen.c @@ -74,18 +74,23 @@ int dlopen_bpf(void) { return log_debug_errno(SYNTHETIC_ERRNO(EOPNOTSUPP), "neither libbpf.so.1 nor libbpf.so.0 are installed: %s", dlerror()); + log_debug("Loaded 'libbpf.so.0' via dlopen()"); + /* symbols deprecated in 1.0 we use as compat */ r = dlsym_many_or_warn( dl, LOG_DEBUG, #if MODERN_LIBBPF /* Don't exist anymore in new libbpf, hence cannot type check them */ DLSYM_ARG_FORCE(bpf_create_map), - DLSYM_ARG_FORCE(bpf_probe_prog_type)); + DLSYM_ARG_FORCE(bpf_probe_prog_type) #else DLSYM_ARG(bpf_create_map), - DLSYM_ARG(bpf_probe_prog_type)); + DLSYM_ARG(bpf_probe_prog_type) #endif + ); } else { + log_debug("Loaded 'libbpf.so.1' via dlopen()"); + /* symbols available from 0.7.0 */ r = dlsym_many_or_warn( dl, LOG_DEBUG, @@ -99,6 +104,8 @@ int dlopen_bpf(void) { #endif ); } + if (r < 0) + return r; r = dlsym_many_or_warn( dl, LOG_DEBUG, |