[temp] Log ARM64 instructions failing to decode

DataDog · Jan 25, 2023 · 3ce61d0 · 3ce61d0
1 parent 16b3f01
commit 3ce61d0
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/pkg/network/go/asmscan/scan.go b/pkg/network/go/asmscan/scan.go
@@ -7,7 +7,10 @@ package asmscan
 
 import (
 	"debug/elf"
+	"encoding/hex"
 	"fmt"
+
+	"github.com/DataDog/datadog-agent/pkg/util/log"
 	"golang.org/x/arch/arm64/arm64asm"
 	"golang.org/x/arch/x86/x86asm"
 )
@@ -115,7 +118,9 @@ func FindARM64ReturnInstructions(data []byte) ([]uint64, error) {
 	for cursor < len(data) {
 		instruction, err := arm64asm.Decode(data[cursor:])
 		if err != nil {
-			return nil, fmt.Errorf("failed to decode ARM 64 instruction at offset %d within function machine code: %w", cursor, err)
+			log.Warnf("failed to decode ARM 64 instruction (0x%s) at offset %d within function machine code: %s", hex.EncodeToString(data[cursor:]), cursor, err)
+			cursor += 4
+			continue
 		}
 
 		if instruction.Op == arm64asm.RET {