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From: Pavan Nikhilesh Bhagavatula <pbhagavatula@marvell.com>
To: "dev@dpdk.org" <dev@dpdk.org>, "bluca@debian.org" <bluca@debian.org>
Cc: "stable@dpdk.org" <stable@dpdk.org>,
	"gavin.hu@arm.com" <gavin.hu@arm.com>,
	"viktorin@rehivetech.com" <viktorin@rehivetech.com>,
	Jerin Jacob Kollanukkaran <jerinj@marvell.com>,
	"bruce.richardson@intel.com" <bruce.richardson@intel.com>
Subject: Re: [dpdk-dev] [PATCH v3] build: use generic march on arm64 when using	'default' machine
Date: Wed, 20 Mar 2019 05:01:42 +0000	[thread overview]
Message-ID: <84033239dca8e91d432be6cc01bbdb65803c3af8.camel@marvell.com> (raw)
Message-ID: <20190320050142.lYJA_ISGLNCK5_hL0hPpV7xWk_9MTOpM0SZHZJDHCzU@z> (raw)
In-Reply-To: <20190107141130.24360-1-bluca@debian.org>

On Mon, 2019-01-07 at 14:11 +0000, Luca Boccassi wrote:
> When building for generic distribution we need a stable baseline
> architecture, or depending on the build worker the result will vary.
> 
> Force the default flags if the user explicitly sets machine=default
> at configuration time.
> 
> Fixes: b1d48c41189a ("build: support ARM with meson")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Luca Boccassi <bluca@debian.org>
> Acked-by: Bruce Richardson <bruce.richardson@intel.com>
> ---
> v2: fix typo in commit message, remove variable used only once
> v3: put back temporary variable, as "machine" gets overwritten
>     by the function and loses the original value before we need
>     it.
> 
>  config/arm/meson.build | 7 ++++++-
>  1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/config/arm/meson.build b/config/arm/meson.build
> index dae55d6b2..614139534 100644
> --- a/config/arm/meson.build
> +++ b/config/arm/meson.build
> @@ -6,6 +6,7 @@
>  march_opt = '-march=@0@'.format(machine)
>  
>  arm_force_native_march = false
> +arm_force_default_march = (machine == 'default')
>  
>  machine_args_generic = [
>  	['default', ['-march=armv8-a+crc+crypto']],
> @@ -105,7 +106,11 @@ else
>  	cmd_generic = ['generic', '', '', 'default', '']
>  	cmd_output = cmd_generic # Set generic by default
^
>  	machine_args = [] # Clear previous machine args
> -	if not meson.is_cross_build()
> +	if arm_force_default_march and not meson.is_cross_build()
> +		machine = impl_generic
> +		cmd_output = cmd_generic

Isn't this assignment redundant as it is already done above?

Acked-by: Pavan Nikhilesh <pbhagavatula@marvell.com>

> +		impl_pn = 'default'
> +	elif not meson.is_cross_build()
>  		# The script returns ['Implementer', 'Variant',
> 'Architecture',
>  		# 'Primary Part number', 'Revision']
>  		detect_vendor = find_program(join_paths(

  parent reply	other threads:[~2019-03-20  5:02 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-12-24 12:56 [dpdk-dev] [PATCH] " Luca Boccassi
2019-01-07 12:24 ` Bruce Richardson
2019-01-07 13:40   ` Luca Boccassi
2019-01-07 13:45   ` Luca Boccassi
2019-01-07 13:39 ` [dpdk-dev] [PATCH v2] " Luca Boccassi
2019-01-07 14:11 ` [dpdk-dev] [PATCH v3] " Luca Boccassi
2019-01-11 10:45   ` Luca Boccassi
2019-01-14  8:09     ` [dpdk-dev] [EXT] " Jerin Jacob Kollanukkaran
2019-01-14  9:58       ` Luca Boccassi
2019-01-14 10:35         ` Jerin Jacob Kollanukkaran
2019-01-14 11:07           ` Luca Boccassi
2019-02-27 12:15   ` [dpdk-dev] " Luca Boccassi
2019-03-20  5:01   ` Pavan Nikhilesh Bhagavatula [this message]
2019-03-20  5:01     ` Pavan Nikhilesh Bhagavatula
2019-03-20 13:18     ` Luca Boccassi
2019-03-20 13:18       ` Luca Boccassi
2019-03-20 13:18 ` [dpdk-dev] [PATCH v4] " luca.boccassi
2019-03-20 13:18   ` luca.boccassi
2019-04-17 20:27   ` Thomas Monjalon
2019-04-17 20:27     ` Thomas Monjalon

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