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From: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Date: Thu, 15 Nov 2018 20:29:30 +0100
Message-ID: <CAATJJ0KZ1epyBbkr0rCiaAstELgBtcTVNPaw6zPPFBAMu-8cUQ@mail.gmail.com>
To: Luca Boccassi <bluca@debian.org>
Cc: dev <dev@dpdk.org>, Bruce Richardson <bruce.richardson@intel.com>,
pbhagavatula@caviumnetworks.com, jerin.jacob@caviumnetworks.com,
stable@dpdk.org
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Subject: Re: [dpdk-dev] [PATCH] build: set -mfpu=neon flag for armv7a builds
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On Thu, Nov 15, 2018 at 5:54 PM Luca Boccassi <bluca@debian.org> wrote:
>
> Building on armv7a with meson currenctly fails:
>
> /usr/lib/gcc/arm-linux-gnueabihf/8/include/arm_neon.h:10369:1: error:
> inlining failed in call to always_inline =E2=80=98vld1q_s32=E2=80=99:=
target
> specific option mismatch
>
> Set -mfpu=3Dneon on that architecture like the legacy makefiles do to fix
> the issue.
>
> Fixes: b1d48c41189a ("build: support ARM with meson")
> Cc: stable@dpdk.org
>
> Signed-off-by: Luca Boccassi <bluca@debian.org>
Acked-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
> ---
> config/arm/meson.build | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/config/arm/meson.build b/config/arm/meson.build
> index 4b23b3954..b75513855 100644
> --- a/config/arm/meson.build
> +++ b/config/arm/meson.build
> @@ -89,6 +89,9 @@ if cc.sizeof('void *') !=3D 8
> dpdk_conf.set('RTE_CACHE_LINE_SIZE', 64)
> dpdk_conf.set('RTE_ARCH_ARM', 1)
> dpdk_conf.set('RTE_ARCH_ARMv7', 1)
> + # the minimum architecture supported, armv7-a, needs the followin=
g,
> + # mk/machine/armv7a/rte.vars.mk sets it too
> + machine_args +=3D '-mfpu=3Dneon'
> else
> dpdk_conf.set('RTE_CACHE_LINE_SIZE', 128)
> dpdk_conf.set('RTE_ARCH_ARM64', 1)
> --
> 2.19.1
>
--=20
Christian Ehrhardt
Software Engineer, Ubuntu Server
Canonical Ltd