Add ARM support

kernel_collector.h

Index: kernel_collector.h
diff --git a/kernel_collector.h b/kernel_collector.h
index 708fd1b9ee7641c3b0de62f2a8c9dd0f0e996758..6f4886ef21417fb6162fa2fe18531addbcf369c0 100644
--- a/kernel_collector.h
+++ b/kernel_collector.h
@@ -18,6 +18,15 @@ class FilePath;
 // Kernel crash collector.
 class KernelCollector : public CrashCollector {
  public:
+  // Enumeration to specify architecture type.
+  enum ArchKind {
+    archArm,  // ARM variant.
+    archX86,  // X86 variant.
+    archUnknown,  // We don't know.
+
+    archCount  // Number of architectures.
+  };
+
   KernelCollector();
 
   virtual ~KernelCollector();
@@ -62,6 +71,9 @@ class KernelCollector : public CrashCollector {
                         bool print_diagnostics,
                         std::string *panic_message);
 
+  // Returns the architecture kind for which we are build - enum ArchKind
+  enum ArchKind GetArch(void);
+
   bool is_enabled_;
   FilePath preserved_dump_path_;
   static const char kClearingSequence[];