symbolz: skip un-symbolizable mappings

This fixes google#339 by skipping attempts to symbolize anything from system mappings like [vdso], [vsyscall], etc.
toddlipcon · Mar 21, 2018 · 6589a7f · 6589a7f
1 parent a74ae6f
commit 6589a7f
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/internal/symbolz/symbolz.go b/internal/symbolz/symbolz.go
@@ -45,6 +45,10 @@ func Symbolize(p *profile.Profile, force bool, sources plugin.MappingSources, sy
 			// Only check for HasFunctions as symbolz only populates function names.
 			continue
 		}
+		// Skip well-known system mappings
+		if m.Unsymbolizable() {
+			continue
+		}
 		mappingSources := sources[m.File]
 		if m.BuildID != "" {
 			mappingSources = append(mappingSources, sources[m.BuildID]...)