golabels: ignore attach when Go plugins are loaded

interpreter/golabels/golabels.go

@@ -4,6 +4,7 @@
 package golabels // import "go.opentelemetry.io/ebpf-profiler/interpreter/golabels"
 
 import (
+	"debug/elf"
 	"errors"
 	"fmt"
 	"go/version"
@@ -59,6 +60,25 @@ func Loader(_ interpreter.EbpfHandler, info *interpreter.LoaderInfo) (interprete
 		return nil, nil
 	}
 
+	// Go plugins are shared objects that share the runtime with the main
+	// binary. The offsets we need are determined by the main binary so
+	// there is no reason to create a duplicate golabels instance for
+	// a plugin. A shared library is ET_DYN without a PT_INTERP segment
+	// (PIE executables are also ET_DYN but have PT_INTERP).
+	if file.Type == elf.ET_DYN {
+		hasInterp := false
+		for i := range file.Progs {
+			if file.Progs[i].Type == elf.PT_INTERP {
+				hasInterp = true
+				break
+			}
+		}
+		if !hasInterp {
+			log.Debugf("file %s is a Go shared library, skipping golabels", info.FileName())
+			return nil, nil
+		}
+	}
+
 	if version.Compare(goVersion, "go1.27") >= 0 {
 		return nil, fmt.Errorf("unsupported Go version %s (need >= 1.13 and <= 1.26)", goVersion)
 	}

processmanager/ebpf/ebpf.go

@@ -216,7 +216,7 @@ func (impl *ebpfMapsImpl) DeleteProcData(typ libpf.InterpreterType, pid libpf.PI
 
 	pid32 := uint32(pid)
 	if err := ebpfMap.Delete(unsafe.Pointer(&pid32)); err != nil {
-		return fmt.Errorf("failed to remove info: %v", err)
+		return fmt.Errorf("failed to remove info: %w", err)
 	}
 	return nil
 }