From: Fangrui Song <maskray@google.com>
To: "H.J. Lu" <hjl.tools@gmail.com>
Cc: Adhemerval Zanella <adhemerval.zanella@linaro.org>,
libc-alpha@sourceware.org
Subject: Re: [PATCH v7 1/6] elf: Define DT_RELR related macros and types
Date: Fri, 8 Apr 2022 17:19:53 -0700 [thread overview]
Message-ID: <20220409001953.esrixb26kcpxgxvr@google.com> (raw)
In-Reply-To: <73a619a3-0939-1f13-f819-30a65d47c97d@linaro.org>
On 2022-04-04, Adhemerval Zanella wrote:
>LGTM, thanks.
>
>Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
>
>On 31/03/2022 13:38, 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 */
Obviously LGTM to me as well since I suggested the comments.
Reviewed-by: Fangrui Song <maskray@google.com>
next prev parent reply other threads:[~2022-04-09 0:19 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-31 16:38 [PATCH v7 0/6] Support DT_RELR relative relocation format H.J. Lu
2022-03-31 16:38 ` [PATCH v7 1/6] elf: Define DT_RELR related macros and types H.J. Lu
2022-04-04 15:46 ` Adhemerval Zanella
2022-04-09 0:19 ` Fangrui Song [this message]
2022-03-31 16:38 ` [PATCH v7 2/6] Add GLIBC_ABI_DT_RELR for DT_RELR support H.J. Lu
2022-04-04 15:55 ` Adhemerval Zanella
2022-04-13 16:46 ` H.J. Lu
2022-03-31 16:38 ` [PATCH v7 3/6] elf: Support DT_RELR relative relocation format [BZ #27924] H.J. Lu
2022-04-04 17:12 ` Adhemerval Zanella
2022-04-13 16:54 ` H.J. Lu
2022-03-31 16:38 ` [PATCH v7 4/6] elf: Properly handle zero DT_RELA/DT_REL values H.J. Lu
2022-04-04 17:13 ` Adhemerval Zanella
2022-03-31 16:38 ` [PATCH v7 5/6] Add --disable-default-dt-relr H.J. Lu
2022-04-04 18:15 ` Adhemerval Zanella
2022-03-31 16:38 ` [PATCH v7 6/6] NEWS: Mention DT_RELR support H.J. Lu
2022-04-04 18:16 ` Adhemerval Zanella
2022-04-09 0:16 ` Fangrui Song
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