[PATCH 04/22] covoar/Target_i386: Add NOP patterns

Alex White alexanderjwhite at gmail.com
Mon Mar 1 20:01:11 UTC 2021


A couple of NOP patterns found with the pc686 BSP were not detected.
This has been fixed.
---
 tester/covoar/Target_i386.cc | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tester/covoar/Target_i386.cc b/tester/covoar/Target_i386.cc
index e0c9c0f..4567c1e 100644
--- a/tester/covoar/Target_i386.cc
+++ b/tester/covoar/Target_i386.cc
@@ -87,6 +87,15 @@ namespace Target {
       size = 3;
       return true;
     }
+    if (!strncmp( &line[strlen(line)-28], "lea    0x0(%esi,%eiz,1),%esi", 28)) {
+      // Could be 4 or 7 bytes of padding.
+      if (!strncmp( &line[strlen(line)-32], "00", 2)) {
+        size = 7;
+      } else {
+        size = 4;
+      }
+      return true;
+    }
 
     return false;
   }
-- 
2.27.0



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