Add AArch64 hwcap values from Linux 4.17

[Szabolcs Nagy]

On 05/06/18 16:20, Joseph Myers wrote:
> On Tue, 5 Jun 2018, Szabolcs Nagy wrote:
>> On 04/06/18 21:56, Joseph Myers wrote:
>>> Linux 4.17 adds four new AArch64 hwcap values.  This patch adds them
>>> to glibc's AArch64 bits/hwcap.h.
>>>
>>
>> dl-procinfo.c needs to be updated too.
> 
> Thanks, here's an updated patch.
> 
> Add AArch64 hwcap values from Linux 4.17.
> 
> Linux 4.17 adds four new AArch64 hwcap values.  This patch adds them
> to glibc's AArch64 bits/hwcap.h, with corresponding dl-procinfo.c
> updates.
> 
> Tested with build-many-glibcs.py for aarch64.
> 

This is OK to commit, thanks.

> 2018-06-05  Joseph Myers  <joseph@codesourcery.com>
> 
> 	* sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h (HWCAP_DIT): New
> 	macro.
> 	(HWCAP_USCAT): Likewise.
> 	(HWCAP_ILRCPC): Likewise.
> 	(HWCAP_FLAGM): Likewise.
> 	* sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c (_DL_HWCAP_COUNT):
> 	Increase to 28.
> 	(_dl_aarch64_cap_flags): Add new flag names.
> 
> diff --git a/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h b/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
> index 6f05ec1..0837913 100644
> --- a/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
> +++ b/sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h
> @@ -45,3 +45,7 @@
>   #define HWCAP_SHA512		(1 << 21)
>   #define HWCAP_SVE		(1 << 22)
>   #define HWCAP_ASIMDFHM		(1 << 23)
> +#define HWCAP_DIT		(1 << 24)
> +#define HWCAP_USCAT		(1 << 25)
> +#define HWCAP_ILRCPC		(1 << 26)
> +#define HWCAP_FLAGM		(1 << 27)
> diff --git a/sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c b/sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c
> index 054d5c8..2ac0635 100644
> --- a/sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c
> +++ b/sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c
> @@ -57,7 +57,7 @@ PROCINFO_CLASS struct cpu_features _dl_aarch64_cpu_features
>   #endif
>   
>   /* Number of HWCAP bits set.  */
> -#define _DL_HWCAP_COUNT 24
> +#define _DL_HWCAP_COUNT 28
>   
>   #if !defined PROCINFO_DECL && defined SHARED
>     ._dl_aarch64_cap_flags
> @@ -69,7 +69,7 @@ PROCINFO_CLASS const char _dl_aarch64_cap_flags[_DL_HWCAP_COUNT][10]
>   = { "fp", "asimd", "evtstrm", "aes", "pmull", "sha1", "sha2", "crc32",
>       "atomics", "fphp", "asimdhp", "cpuid", "asimdrdm", "jscvt", "fcma",
>       "lrcpc", "dcpop", "sha3", "sm3", "sm4", "asimddp", "sha512", "sve",
> -    "asimdfhm" }
> +    "asimdfhm", "dit", "uscat", "ilrcpc", "flagm" }
>   #endif
>   #if !defined SHARED || defined PROCINFO_DECL
>   ;
> 
>