chore: strace klib temporary backward compatibility

nanovms · Jun 7, 2024 · 1f520fb · 1f520fb
1 parent bdeb7c5
commit 1f520fb
Showing 1 changed file with 11 additions and 1 deletion.
diff --git a/cmd/flags_run_local_instance.go b/cmd/flags_run_local_instance.go
@@ -4,7 +4,9 @@ import (
 	"debug/elf"
 	"fmt"
 	"net"
+	"os"
 	"os/exec"
+	"path/filepath"
 	"slices"
 	"strconv"
 	"strings"
@@ -79,7 +81,15 @@ func (flags *RunLocalInstanceCommandFlags) MergeToConfig(c *types.Config) error
 	}
 
 	if (flags.Trace || flags.SyscallSummary) && !slices.Contains(c.Klibs, "strace") {
-		c.Klibs = append(c.Klibs, "strace") // debugsyscalls, notrace, tracelist, syscall_summary
+		// temporary backward compatibility
+		_, err := os.Stat(filepath.Join(c.KlibDir, "strace"))
+		if err != nil && flags.Trace {
+			c.Debugflags = append(c.Debugflags, "futex_trace")
+		}
+		// new strace klib
+		if err == nil {
+			c.Klibs = append(c.Klibs, "strace") // debugsyscalls, notrace, tracelist, syscall_summary
+		}
 	}
 
 	if flags.MissingFiles {