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elf: Add a few definitions for 64-bit relocation 

Provide the types necessary to relocate 64-bit images.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
utp
Simon Glass 2015-07-31 09:31:21 -06:00
parent 753812cb2e
commit 5efa28139c
1 changed files with 26 additions and 0 deletions
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26
include/elf.h
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@ -28,6 +28,16 @@ typedef int32_t Elf32_Sword; /* Signed large integer */
typedef uint32_t Elf32_Word; /* Unsigned large integer */
typedef uint16_t Elf32_Half; /* Unsigned medium integer */
/* 64-bit ELF base types. */
typedef uint64_t Elf64_Addr;
typedef uint16_t Elf64_Half;
typedef int16_t Elf64_SHalf;
typedef uint64_t Elf64_Off;
typedef int32_t Elf64_Sword;
typedef uint32_t Elf64_Word;
typedef uint64_t Elf64_Xword;
typedef int64_t Elf64_Sxword;
/* e_ident[] identification indexes */
#define EI_MAG0 0 /* file ID */
#define EI_MAG1 1 /* file ID */
@ -379,6 +389,11 @@ typedef struct
Elf32_Sword r_addend;
} Elf32_Rela;
typedef struct {
Elf64_Addr r_offset; /* Location at which to apply the action */
Elf64_Xword r_info; /* index and type of relocation */
} Elf64_Rel;
/* Extract relocation info - r_info */
#define ELF32_R_SYM(i) ((i) >> 8)
#define ELF32_R_TYPE(i) ((unsigned char) (i))
@ -431,6 +446,17 @@ typedef struct
extern Elf32_Dyn _DYNAMIC[];
typedef struct {
Elf64_Sxword d_tag; /* entry tag value */
union {
Elf64_Xword d_val;
Elf64_Addr d_ptr;
} d_un;
} Elf64_Dyn;
#define ELF64_R_SYM(i) ((i) >> 32)
#define ELF64_R_TYPE(i) ((i) & 0xffffffff)
/* Dynamic Array Tags - d_tag */
#define DT_NULL 0 /* marks end of _DYNAMIC array */
#define DT_NEEDED 1 /* string table offset of needed lib */