This CL adds support for ARM and ARM64 architectures when calculating

src/processor/exploitability_linux.cc

Index: src/processor/exploitability_linux.cc
===================================================================
--- src/processor/exploitability_linux.cc	(revision 1464)
+++ src/processor/exploitability_linux.cc	(working copy)
@@ -106,8 +106,15 @@
     case MD_CONTEXT_AMD64:
       instruction_ptr = context->GetContextAMD64()->rip;
       break;
+    case MD_CONTEXT_ARM:
+      instruction_ptr =
+          context->GetContextARM()->iregs[MD_CONTEXT_ARM_REG_PC];
+      break;
+    case MD_CONTEXT_ARM64:
+      instruction_ptr =
+          context->GetContextARM64()->iregs[MD_CONTEXT_ARM64_REG_PC];
+      break;
     default:
-      // TODO(liuandrew): Add support ARM and arm64 architectures.
       BPLOG(INFO) << "Unsupported architecture.";
       return EXPLOITABILITY_ERR_PROCESSING;
   }