elf: Add ELF64 related structure defines

This adds ELF header, program header and section header structure
defines for the 64-bit ELF image.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

include/elf.h

@@ -107,6 +107,24 @@ typedef struct {
 					   header string table" entry offset */
 } Elf32_Ehdr;
 
+typedef struct {
+	unsigned char	e_ident[EI_NIDENT]; /* ELF Identification */
+	Elf64_Half	e_type;		/* object file type */
+	Elf64_Half	e_machine;	/* machine */
+	Elf64_Word	e_version;	/* object file version */
+	Elf64_Addr	e_entry;	/* virtual entry point */
+	Elf64_Off	e_phoff;	/* program header table offset */
+	Elf64_Off	e_shoff;	/* section header table offset */
+	Elf64_Word	e_flags;	/* processor-specific flags */
+	Elf64_Half	e_ehsize;	/* ELF header size */
+	Elf64_Half	e_phentsize;	/* program header entry size */
+	Elf64_Half	e_phnum;	/* number of program header entries */
+	Elf64_Half	e_shentsize;	/* section header entry size */
+	Elf64_Half	e_shnum;	/* number of section header entries */
+	Elf64_Half	e_shstrndx;	/* section header table's "section
+					   header string table" entry offset */
+} Elf64_Ehdr;
+
 /* e_type */
 #define ET_NONE		0		/* No file type */
 #define ET_REL		1		/* relocatable file */
@@ -224,6 +242,20 @@ typedef struct {
 	Elf32_Word	sh_entsize;	/* section entry size */
 } Elf32_Shdr;
 
+typedef struct {
+	Elf64_Word	sh_name;	/* name - index into section header
+					   string table section */
+	Elf64_Word	sh_type;	/* type */
+	Elf64_Xword	sh_flags;	/* flags */
+	Elf64_Addr	sh_addr;	/* address */
+	Elf64_Off	sh_offset;	/* file offset */
+	Elf64_Xword	sh_size;	/* section size */
+	Elf64_Word	sh_link;	/* section header table index link */
+	Elf64_Word	sh_info;	/* extra information */
+	Elf64_Xword	sh_addralign;	/* address alignment */
+	Elf64_Xword	sh_entsize;	/* section entry size */
+} Elf64_Shdr;
+
 /* Special Section Indexes */
 #define SHN_UNDEF	0		/* undefined */
 #define SHN_LORESERVE	0xff00		/* lower bounds of reserved indexes */
@@ -408,6 +440,17 @@ typedef struct {
 	Elf32_Word	p_align;	/* memory alignment */
 } Elf32_Phdr;
 
+typedef struct {
+	Elf64_Word	p_type;		/* segment type */
+	Elf64_Word	p_flags;	/* flags */
+	Elf64_Off	p_offset;	/* segment offset */
+	Elf64_Addr	p_vaddr;	/* virtual address of segment */
+	Elf64_Addr	p_paddr;	/* physical address of segment */
+	Elf64_Xword	p_filesz;	/* number of bytes in file for seg */
+	Elf64_Xword	p_memsz;	/* number of bytes in mem. for seg */
+	Elf64_Xword	p_align;	/* memory alignment */
+} Elf64_Phdr;
+
 /* Segment types - p_type */
 #define PT_NULL		0		/* unused */
 #define PT_LOAD		1		/* loadable segment */