Wire up parsex86InstrumentationPointer for x86_64

Author: oleavr

lib/android.js

@@ -800,7 +800,32 @@ function tryDetectInstrumentationPointer (api) {
 }
 
 function parsex86InstrumentationPointer (insn) {
-  return null;
+  if (insn.mnemonic !== 'mov') {
+    return null;
+  }
+
+  const ops = insn.operands;
+
+  const dst = ops[0];
+  if (dst.value !== 'rax') {
+    return null;
+  }
+
+  const src = ops[1];
+  if (src.type !== 'mem') {
+    return null;
+  }
+
+  const mem = src.value;
+  if (mem.base !== 'rdi') {
+    return null;
+  }
+
+  const offset = mem.disp;
+  if (offset < 0x100 || offset > 0x400) {
+    return null;
+  }
+  return offset;
 }
 
 function parseArmInstrumentationPointer (insn) {