Re: [dpdk-dev] [PATCH v2 1/2] ci: fix ABI reference generation

["Juraj Linkeš" <juraj.linkes@pantheon.tech>]

> -----Original Message-----
> From: David Marchand <david.marchand@redhat.com>
> Sent: Thursday, April 15, 2021 9:43 PM
> To: dev@dpdk.org
> Cc: thomas@monjalon.net; mdr@ashroe.eu; Aaron Conole
> <aconole@redhat.com>; Michael Santana <maicolgabriel@hotmail.com>; Juraj
> Linkeš <juraj.linkes@pantheon.tech>; Honnappa Nagarahalli
> <honnappa.nagarahalli@arm.com>; Bruce Richardson
> <bruce.richardson@intel.com>
> Subject: [PATCH v2 1/2] ci: fix ABI reference generation
> 
> The machine=generic is not understood by older version of dpdk.
> It is directly passed to gcc as -march=generic.
> 
> Since DPDK requires SSE 4.2, this results in an error when configuring
> v21.02 sources for generating the reference ABI.
> 
> From GHA [1] logs:
> 
> """
> Compiler for C supports arguments -Wundef: YES Compiler for C supports
> arguments -Wwrite-strings: YES Compiler for C supports arguments -Wno-
> address-of-packed-member
> -Waddress-of-packed-member: NO
> Compiler for C supports arguments -Wno-packed-not-aligned
> -Wpacked-not-aligned: NO
> Compiler for C supports arguments -Wno-missing-field-initializers
> -Wmissing-field-initializers: YES
> 
> config/x86/meson.build:14:6: ERROR:  Could not get define '__SSE4_2__'
> 
> A full log can be found at
> /home/runner/work/dpdk/dpdk-v21.02/build/meson-logs/meson-log.txt
> Error: Process completed with exit code 1.
> """
> 
> 1: https://github.com/ovsrobot/dpdk/runs/2355005702
> 
> Stick to a compatible configuration passing -Dmachine=default.
> 
> Note: the breakage was not seen earlier this week as I guess the CI workers are
> using a cached ABI reference for v20.11.
> 
> Fixes: 5b3a6ca6fd28 ("build: alias default build as generic")
> 
> Signed-off-by: David Marchand <david.marchand@redhat.com>

Reviewed-by: Juraj Linkeš <juraj.linkes@pantheon.tech>

Do we want to change this back to -Dmachine=generic after next release?

> ---
>  .ci/linux-build.sh | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/.ci/linux-build.sh b/.ci/linux-build.sh index 3cbeb193a1..91e43a975b
> 100755
> --- a/.ci/linux-build.sh
> +++ b/.ci/linux-build.sh
> @@ -77,7 +77,7 @@ else
>      OPTS="$OPTS -Dexamples=all"
>  fi
> 
> -OPTS="$OPTS -Dmachine=generic"
> +OPTS="$OPTS -Dmachine=default"
>  OPTS="$OPTS --default-library=$DEF_LIB"
>  OPTS="$OPTS --buildtype=debugoptimized"
>  OPTS="$OPTS -Dcheck_includes=true"
> --
> 2.23.0
>