--- a/hotspot/src/os/linux/vm/os_linux.cpp	Tue Jun 28 00:24:10 2016 +0900
+++ b/hotspot/src/os/linux/vm/os_linux.cpp	Mon Jul 04 12:43:01 2016 +0900
@@ -1742,11 +1742,11 @@
   }
 
   typedef struct {
-    Elf32_Half  code;         // Actual value as defined in elf.h
-    Elf32_Half  compat_class; // Compatibility of archs at VM's sense
-    char        elf_class;    // 32 or 64 bit
-    char        endianess;    // MSB or LSB
-    char*       name;         // String representation
+    Elf32_Half    code;         // Actual value as defined in elf.h
+    Elf32_Half    compat_class; // Compatibility of archs at VM's sense
+    unsigned char elf_class;    // 32 or 64 bit
+    unsigned char endianess;    // MSB or LSB
+    char*         name;         // String representation
   } arch_t;
 
 #ifndef EM_486