Re: [PATCH v10 1/7] elf: Define DT_RELR related macros and types

[Adhemerval Zanella <adhemerval.zanella@linaro.org>]

LGTM, thanks.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>

On 14/04/2022 20:21, H.J. Lu wrote:
> ---
>  elf/elf.h | 13 +++++++++++--
>  1 file changed, 11 insertions(+), 2 deletions(-)
> 
> diff --git a/elf/elf.h b/elf/elf.h
> index 0735f6b579..0195029188 100644
> --- a/elf/elf.h
> +++ b/elf/elf.h
> @@ -443,7 +443,8 @@ typedef struct
>  #define SHT_PREINIT_ARRAY 16		/* Array of pre-constructors */
>  #define SHT_GROUP	  17		/* Section group */
>  #define SHT_SYMTAB_SHNDX  18		/* Extended section indices */
> -#define	SHT_NUM		  19		/* Number of defined types.  */
> +#define SHT_RELR	  19            /* RELR relative relocations */
> +#define	SHT_NUM		  20		/* Number of defined types.  */
>  #define SHT_LOOS	  0x60000000	/* Start OS-specific.  */
>  #define SHT_GNU_ATTRIBUTES 0x6ffffff5	/* Object attributes.  */
>  #define SHT_GNU_HASH	  0x6ffffff6	/* GNU-style hash table.  */
> @@ -662,6 +663,11 @@ typedef struct
>    Elf64_Sxword	r_addend;		/* Addend */
>  } Elf64_Rela;
>  
> +/* RELR relocation table entry */
> +
> +typedef Elf32_Word	Elf32_Relr;
> +typedef Elf64_Xword	Elf64_Relr;
> +
>  /* How to extract and insert information held in the r_info field.  */
>  
>  #define ELF32_R_SYM(val)		((val) >> 8)
> @@ -887,7 +893,10 @@ typedef struct
>  #define DT_PREINIT_ARRAY 32		/* Array with addresses of preinit fct*/
>  #define DT_PREINIT_ARRAYSZ 33		/* size in bytes of DT_PREINIT_ARRAY */
>  #define DT_SYMTAB_SHNDX	34		/* Address of SYMTAB_SHNDX section */
> -#define	DT_NUM		35		/* Number used */
> +#define DT_RELRSZ	35		/* Total size of RELR relative relocations */
> +#define DT_RELR		36		/* Address of RELR relative relocations */
> +#define DT_RELRENT	37		/* Size of one RELR relative relocaction */
> +#define	DT_NUM		38		/* Number used */
>  #define DT_LOOS		0x6000000d	/* Start of OS-specific */
>  #define DT_HIOS		0x6ffff000	/* End of OS-specific */
>  #define DT_LOPROC	0x70000000	/* Start of processor-specific */