Add more test cases for GptInit() and fixed some bugs

src/platform/vboot_reference/cgptlib/gpt.h

 /* Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  *
  * Defines EFI related structure. See more details in EFI 2.3 spec.
  *
  * To download EFI standard, please visit UEFI homepage:
  *    http://www.uefi.org/
  */
 #ifndef VBOOT_REFERENCE_CGPTLIB_GPT_H_
 #define VBOOT_REFERENCE_CGPTLIB_GPT_H_
 
 #include <stdint.h>
 
 #define GPT_HEADER_SIGNATURE "EFI PART"
 #define GPT_HEADER_SIGNATURE_SIZE sizeof(GPT_HEADER_SIGNATURE)
 #define GPT_HEADER_REVISION 0x00010000
 
 #define GPT_ENT_TYPE_EFI \
-  {{Uuid: {0xc12a7328,0xf81f,0x11d2,0xba,0x4b,{0x00,0xa0,0xc9,0x3e,0xc9,0x3b}}}}
+  {{{0xc12a7328,0xf81f,0x11d2,0xba,0x4b,{0x00,0xa0,0xc9,0x3e,0xc9,0x3b}}}}
 #define GPT_ENT_TYPE_UNUSED \
-  {{Uuid: {0x00000000,0x0000,0x0000,0x00,0x00,{0x00,0x00,0x00,0x00,0x00,0x00}}}}
+  {{{0x00000000,0x0000,0x0000,0x00,0x00,{0x00,0x00,0x00,0x00,0x00,0x00}}}}
 #define GPT_ENT_TYPE_CHROMEOS_KERNEL \
-  {{Uuid: {0xfe3a2a5d,0x4f32,0x41a7,0xb7,0x25,{0xac,0xcc,0x32,0x85,0xa3,0x09}}}}
+  {{{0xfe3a2a5d,0x4f32,0x41a7,0xb7,0x25,{0xac,0xcc,0x32,0x85,0xa3,0x09}}}}
 #define GPT_ENT_TYPE_CHROMEOS_ROOTFS \
-  {{Uuid: {0x3cb8e202,0x3b7e,0x47dd,0x8a,0x3c,{0x7f,0xf2,0xa1,0x3c,0xfc,0xec}}}}
+  {{{0x3cb8e202,0x3b7e,0x47dd,0x8a,0x3c,{0x7f,0xf2,0xa1,0x3c,0xfc,0xec}}}}
 #define GPT_ENT_TYPE_CHROMEOS_RESERVED \
-  {{Uuid: {0x2e0a753d,0x9e48,0x43b0,0x83,0x37,{0xb1,0x51,0x92,0xcb,0x1b,0x5e}}}}
+  {{{0x2e0a753d,0x9e48,0x43b0,0x83,0x37,{0xb1,0x51,0x92,0xcb,0x1b,0x5e}}}}
 
 #define UUID_NODE_LEN 6
 #define GUID_SIZE 16
 
 /*  GUID definition.
  *  Defined in appendix A of EFI standard.
  */
 typedef struct {
   union {
     struct {
       uint32_t time_low;
       uint16_t time_mid;
       uint16_t time_high_and_version;
       uint8_t clock_seq_high_and_reserved;
       uint8_t clock_seq_low;
       uint8_t node[UUID_NODE_LEN];
     } Uuid;
     uint8_t raw[GUID_SIZE];
-  };
+  } u;
 } __attribute__((packed)) Guid;
 
 /* GPT header defines how many partitions exist on a drive and sectors managed.
  * For every drive device, there are 2 headers, primary and secondary.
  * Most of fields are duplicated except my_lba and entries_lba.
  *
  * You may find more details in chapter 5 of EFI standard.
  */
 typedef struct {
   char signature[8];
@@ skipping 22 matching lines @@
 typedef struct {
   Guid type;
   Guid unique;
   uint64_t starting_lba;
   uint64_t ending_lba;
   uint64_t attributes;
   uint16_t name[36];  /* UTF-16 encoded partition name */
 } GptEntry;
 
 #endif  /* VBOOT_REFERENCE_CGPTLIB_GPT_H_ */