This CL adds support for ARM and ARM64 architectures when calculating

src/processor/exploitability_linux.cc

 // Copyright (c) 2013 Google Inc.
 // All rights reserved.
 //
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 // notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
@@ skipping 88 matching lines @@
 
   // Getting instruction pointer based off architecture.
   uint32_t architecture = context->GetContextCPU();
   switch (architecture) {
     case MD_CONTEXT_X86:
       instruction_ptr = context->GetContextX86()->eip;
       break;
     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;
   }
 
   if (!this->InstructionPointerInCode(instruction_ptr)) {
     return EXPLOITABILITY_HIGH;
   }
 
   return EXPLOITABILITY_NONE;
 }
@@ skipping 15 matching lines @@
   // If the memory mapping retrieval fails, we will check the modules
   // to see if the instruction pointer is inside a module.
   // TODO(liuandrew): Check if the instruction pointer lies in an executable
   // region within the module.
   MinidumpModuleList *minidump_module_list = dump_->GetModuleList();
   return !minidump_module_list ||
           minidump_module_list->GetModuleForAddress(instruction_ptr);
 }
 
 }  // namespace google_breakpad