Handle ELFCLASS32 files for x86-64

src/trusted/service_runtime/nacl_error_code.c

Index: src/trusted/service_runtime/nacl_error_code.c
diff --git a/src/trusted/service_runtime/nacl_error_code.c b/src/trusted/service_runtime/nacl_error_code.c
index e715ce6a2cf4ddb3321541b19027657511f82b4d..c8930e75a3116ea5f8b61769e4faa275f559a029 100644
--- a/src/trusted/service_runtime/nacl_error_code.c
+++ b/src/trusted/service_runtime/nacl_error_code.c
@@ -46,14 +46,14 @@ char const  *NaClErrorString(NaClErrorCode errcode) {
       return "ELF file for wrong architecture";
     case LOAD_BAD_ELF_VERS:
       return "ELF version mismatch";
-    case LOAD_TOO_MANY_SECT:
-      return "Too many section headers";
-    case LOAD_BAD_SECT:
-      return "ELF bad sections";
+    case LOAD_EHDR_OVERFLOW:
+      return "ELFCLASS64 file header has fields that overflow 32 bits";
+    case LOAD_PHDR_OVERFLOW:
+      return "ELFCLASS64 program header has fields that overflow 32 bits";
     case LOAD_NO_MEMORY:
       return "Insufficient memory to load file";
-    case LOAD_SECT_HDR:
-      return "ELF section header string table load error";
+    case LOAD_BAD_EHSIZE:
+      return "ELFCLASS64 file header has wrong e_ehsize value";
     case LOAD_ADDR_SPACE_TOO_SMALL:
       return "Address space too small";
     case LOAD_ADDR_SPACE_TOO_BIG: