chore(events): decrease SO loader error log level to debug

Errors from the SO loader are pretty frequent because of race conditions.
As the user has nothing to do with it, the log level should be lowered from WARN.

pkg/events/derive/symbols_collision.go

@@ -1,6 +1,7 @@
 package derive
 
 import (
+	"errors"
 	"github.com/hashicorp/golang-lru/simplelru"
 	"golang.org/x/exp/maps"
 
@@ -182,15 +183,19 @@ func (gen *SymbolsCollisionArgsGenerator) findShObjsCollisions(
 		// get exported symbols from the shared object BEING loaded
 		loadingShObj.exportedSymbols, err = gen.soLoader.GetExportedSymbols(loadingShObj.ObjInfo)
 		if err != nil {
+			// High level languages like Java might load non-ELF files
+			// There is no need to log errors for such cases
+			var notElfErr *sharedobjs.UnsupportedFileError
+			if errors.As(err, &notElfErr) {
+				return nil, nil
+			}
 			// TODO: rate limit frequent errors for overloaded envs
 			_, ok := gen.returnedErrorsMap[err.Error()]
 			if !ok {
 				gen.returnedErrorsMap[err.Error()] = true
-				logger.Warnw("symbols_loaded", "object loaded", loadingShObj.ObjInfo, "error", err.Error())
-			} else {
 				logger.Debugw("symbols_loaded", "object loaded", loadingShObj.ObjInfo, "error", err.Error())
 			}
-			return nil, errfmt.WrapError(err)
+			return nil, nil
 		}
 		loadingShObj.FilterSymbols(gen.symbolsBlacklistMap)    // del symbols NOT in blacklist
 		loadingShObj.FilterOutSymbols(gen.symbolsWhitelistMap) // del symbols IN the white list

pkg/events/derive/symbols_loaded.go

@@ -144,8 +144,6 @@ func (symbsLoadedGen *symbolsLoadedEventGenerator) deriveArgs(
 		_, ok := symbsLoadedGen.returnedErrors[err.Error()]
 		if !ok {
 			symbsLoadedGen.returnedErrors[err.Error()] = true
-			logger.Warnw("symbols_loaded", "object loaded", loadingObjectInfo, "error", err.Error())
-		} else {
 			logger.Debugw("symbols_loaded", "object loaded", loadingObjectInfo, "error", err.Error())
 		}
 		return nil, nil