From: "naohirot@fujitsu.com" <naohirot@fujitsu.com>
To: 'Szabolcs Nagy' <szabolcs.nagy@arm.com>
Cc: "libc-alpha@sourceware.org" <libc-alpha@sourceware.org>
Subject: RE: [PATCH 1/5] config: Added HAVE_SVE_ASM_SUPPORT for aarch64
Date: Tue, 30 Mar 2021 06:19:48 +0000 [thread overview]
Message-ID: <TYAPR01MB60259476CD1FF611CD52D50BDF7D9@TYAPR01MB6025.jpnprd01.prod.outlook.com> (raw)
In-Reply-To: <20210329121152.GD23289@arm.com>
Szabolcs-san,
Thank you for your review.
> > +/* Assembler support ARMv8.2-A SVE */ #define
> HAVE_SVE_ASM_SUPPORT 0
> > +
>
> i prefer to use HAVE_AARCH64_ prefix for aarch64 specific macros in the global
> config.h, e.g. HAVE_AARCH64_SVE_ASM
OK, I'll change it to HAVE_AARCH64_SVE_ASM.
> and i'd like to have a comment here or in configue.ac with the binutils version
> where this becomes obsolete (binutils 2.28 i think). right now the minimum
> required version is 2.25, but glibc may increase that soon to above 2.28.
I'll add the comment in config.h.in like this:
+/* Assembler support ARMv8.2-A SVE.
+ This macro becomes obsolete when glibc increased the minimum
+ required version of GNU 'binutils' to 2.28 or later. */
+#define HAVE_AARCH64_SVE_ASM 0
> > diff --git a/sysdeps/aarch64/configure.ac
> > b/sysdeps/aarch64/configure.ac index 66f755078a..389a0b4e8d 100644
> > --- a/sysdeps/aarch64/configure.ac
> > +++ b/sysdeps/aarch64/configure.ac
...
> > +if AC_TRY_COMMAND(${CC-cc} -c -march=armv8.2-a+sve conftest.s
> > +1>&AS_MESSAGE_LOG_FD); then
> > + libc_cv_asm_sve=yes
> > +else
> > + libc_cv_asm_sve=no
> > +fi
> > +rm -f conftest*])
> > +if test $libc_cv_asm_sve = yes; then
> > + AC_DEFINE(HAVE_SVE_ASM_SUPPORT)
> > +fi
>
> i would use libc_cv_aarch64_sve_asm to make it obvious that it's aarch64 specific
> setting.
OK, I'll change it to libc_cv_aarch64_sve_asm.
Thanks.
Naohiro
next prev parent reply other threads:[~2021-03-30 6:19 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-17 2:28 [PATCH 0/5] Added optimized memcpy/memmove/memset for A64FX Naohiro Tamura
2021-03-17 2:33 ` [PATCH 1/5] config: Added HAVE_SVE_ASM_SUPPORT for aarch64 Naohiro Tamura
2021-03-29 12:11 ` Szabolcs Nagy via Libc-alpha
2021-03-30 6:19 ` naohirot [this message]
2021-03-17 2:34 ` [PATCH 2/5] aarch64: Added optimized memcpy and memmove for A64FX Naohiro Tamura
2021-03-29 12:44 ` Szabolcs Nagy via Libc-alpha
2021-03-30 7:17 ` naohirot
2021-03-17 2:34 ` [PATCH 3/5] aarch64: Added optimized memset " Naohiro Tamura
2021-03-17 2:35 ` [PATCH 4/5] scripts: Added Vector Length Set test helper script Naohiro Tamura
2021-03-29 13:20 ` Szabolcs Nagy via Libc-alpha
2021-03-30 7:25 ` naohirot
2021-03-17 2:35 ` [PATCH 5/5] benchtests: Added generic_memcpy and generic_memmove to large benchtests Naohiro Tamura
2021-03-29 12:03 ` [PATCH 0/5] Added optimized memcpy/memmove/memset for A64FX Szabolcs Nagy via Libc-alpha
2021-05-10 1:45 ` naohirot
2021-05-14 13:35 ` Szabolcs Nagy via Libc-alpha
2021-05-19 0:11 ` naohirot
2021-05-12 9:23 ` [PATCH v2 0/6] aarch64: " Naohiro Tamura
2021-05-12 9:26 ` [PATCH v2 1/6] config: Added HAVE_AARCH64_SVE_ASM for aarch64 Naohiro Tamura
2021-05-26 10:05 ` Szabolcs Nagy via Libc-alpha
2021-05-12 9:27 ` [PATCH v2 2/6] aarch64: define BTI_C and BTI_J macros as NOP unless HAVE_AARCH64_BTI Naohiro Tamura
2021-05-26 10:06 ` Szabolcs Nagy via Libc-alpha
2021-05-12 9:28 ` [PATCH v2 3/6] aarch64: Added optimized memcpy and memmove for A64FX Naohiro Tamura
2021-05-26 10:19 ` Szabolcs Nagy via Libc-alpha
2021-05-12 9:28 ` [PATCH v2 4/6] aarch64: Added optimized memset " Naohiro Tamura
2021-05-26 10:22 ` Szabolcs Nagy via Libc-alpha
2021-05-12 9:29 ` [PATCH v2 5/6] scripts: Added Vector Length Set test helper script Naohiro Tamura
2021-05-12 16:58 ` Joseph Myers
2021-05-13 9:53 ` naohirot
2021-05-20 7:34 ` Naohiro Tamura
2021-05-26 10:24 ` Szabolcs Nagy via Libc-alpha
2021-05-12 9:29 ` [PATCH v2 6/6] benchtests: Fixed bench-memcpy-random: buf1: mprotect failed Naohiro Tamura
2021-05-26 10:25 ` Szabolcs Nagy via Libc-alpha
2021-05-27 0:22 ` [PATCH v2 0/6] aarch64: Added optimized memcpy/memmove/memset for A64FX naohirot
2021-05-27 23:50 ` naohirot
2021-05-27 7:42 ` [PATCH v3 1/2] aarch64: Added optimized memcpy and memmove " Naohiro Tamura
2021-05-27 7:44 ` [PATCH v3 2/2] aarch64: Added optimized memset " Naohiro Tamura
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