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From: Andrew Rybchenko <arybchenko@solarflare.com>
To: David Marchand <david.marchand@redhat.com>, <dev@dpdk.org>
Cc: <thomas@monjalon.net>, <stable@dpdk.org>,
	Neil Horman <nhorman@tuxdriver.com>
Subject: Re: [dpdk-dev] [PATCH 2/2] buildtools: fix build with coverage enabled
Date: Mon, 25 Nov 2019 11:28:49 +0300
Message-ID: <52d83c50-ec1e-c7d2-f757-bfa8482bf968@solarflare.com> (raw)
In-Reply-To: <20191125081007.12396-2-david.marchand@redhat.com>

On 11/25/19 11:10 AM, David Marchand wrote:
> A compiler can reuse a variable name and prefix it when instrumenting
> with coverage.
> Example:
> $ make defconfig T=x86_64-native-linux-gcc O=master
> $ make EXTRA_CFLAGS='--coverage' O=master
> [...]
>     CC rte_flow.o
>  rte_flow_dynf_metadata_offs is not flagged as experimental but is listed
>  in version map
>  Please add __rte_experimental to the definition of
>  rte_flow_dynf_metadata_offs
> $ objdump -t master/build/lib/librte_ethdev/rte_flow.o |grep _offs$
> 0000000000000000 l     F .text.startup	000000000000000a
>   _GLOBAL__sub_I_65535_0_rte_flow_dynf_metadata_offs
> 0000000000000620 g     O .data	0000000000000004
>   rte_flow_dynf_metadata_offs
> Protect against this by adding a space character in the pattern.
> Fixes: a4bcd61de82d ("buildtools: add script to check experimental API exports")
> Cc: stable@dpdk.org
> Reported-by: Andrew Rybchenko <arybchenko@solarflare.com>
> Signed-off-by: David Marchand <david.marchand@redhat.com>


thanks a lot, it solves build problem.

It does not solve experimental symbol inconsistency problem in
markup and map file, but it is a separate less critical

Tested-by: Andrew Rybchenko <arybchenko@solarflare.com>

  reply index

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-25  8:10 [dpdk-dev] [PATCH 1/2] buildtools: fix experimental symbols listing David Marchand
2019-11-25  8:10 ` [dpdk-dev] [PATCH 2/2] buildtools: fix build with coverage enabled David Marchand
2019-11-25  8:28   ` Andrew Rybchenko [this message]
2019-11-25 10:57     ` David Marchand
2019-11-25  8:21 ` [dpdk-dev] [PATCH 1/2] buildtools: fix experimental symbols listing Andrew Rybchenko
2019-11-25 13:26 ` Neil Horman
2019-11-26  8:10   ` David Marchand

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