From: "Mattias Rönnblom" <hofors@lysator.liu.se>
To: Ferruh Yigit <ferruh.yigit@amd.com>, Patrick Robb <probb@iol.unh.edu>
Cc: "dev@dpdk.org" <dev@dpdk.org>,
"Mattias Rönnblom" <mattias.ronnblom@ericsson.com>,
"Richardson, Bruce" <bruce.richardson@intel.com>
Subject: Re: Run unit tests with C++ too
Date: Wed, 1 May 2024 16:14:15 +0200 [thread overview]
Message-ID: <eb32d2f0-053d-408c-ba02-5a8bfd3c7752@lysator.liu.se> (raw)
In-Reply-To: <ce6aebef-f15a-49f9-97c0-541943035b49@amd.com>
On 2024-05-01 11:10, Ferruh Yigit wrote:
> On 4/30/2024 9:57 PM, Patrick Robb wrote:
>>
>>
>> On Tue, Apr 30, 2024 at 4:13 PM Mattias Rönnblom <hofors@lysator.liu.se
>> <mailto:hofors@lysator.liu.se>> wrote:
>>
>> On 2024-04-30 15:52, Patrick Robb wrote:
>> >
>> >
>> > On Sun, Apr 28, 2024 at 3:46 AM Mattias Rönnblom
>> <hofors@lysator.liu.se <mailto:hofors@lysator.liu.se>
>> > <mailto:hofors@lysator.liu.se <mailto:hofors@lysator.liu.se>>> wrote:
>> >
>> > It would be great if the unit test suite (app/test/*) was
>> compiled (and
>> > run) using a C++ (C++11) compiler as well. At least, if such is
>> > available.
>> >
>> >
>> > Sure, the UNH Lab can try this.
>> >
>> >
>> > With the current state of affairs, header file macros or
>> functions are
>> > not verified to be functional (or even valid) C++.
>> >
>> > "C is a subset of C++", which was never true, is becoming less and
>> > less so.
>> >
>> > If all unit tests aren't valid C++, maybe one could start with
>> an "opt
>> > in" model.
>> >
>> >
>> > Okay, so basically run the fast-test suite, record all that don't
>> pass,
>> > submit a bugzilla ticket stating which unit tests are not valid on a
>> > certain c++ compiler, then bring CI Testing online using the valid
>> > subset of fast-tests. This should work.
>> >
>>
>> Sounds good.
>>
>> Just to be clear: the above includes extending the DPDK build system to
>> build the app/test/dpdk-test binary in two versions: one C and one C++,
>> so that anyone can run the C++ tests locally as well. Correct?
>>
>>
>> Okay, so now I am understanding this is not yet available. When I
>> responded this morning I was figuring that c++ compiler support was
>> available and I simply wasn't aware, and that we could quite easily set
>> cc={some c++ compiler}, meson would pick it up, and we would be able to
>> build DPDK and then run unit tests in this manner in CI testing.
>>
>> I didn't mean to suggest we would submit patches extending the build
>> system to this end. That's probably a little out of scope for what we
>> try to accomplish at the Community Lab.
>>
>> But if the aforementioned build system support is added, of course we
>> are willing to add that as a build environment for unit tests and report
>> those respective results.
>>
>
> Does it have to be 'app/test/dpdk-test', why not build examples with C++?
>
The unit tests have the ability to test DPDK, which is exactly what we
want to do here. Such testing isn't limited to "compiles yes/no", but to
detect run-time (behavioral) issues, and properly report them.
This is especially important for cases where there is code only
exercised in C++ translation units (i.e., in #ifdef __cplusplus).
> Examples source codes can be installed with existing build support.
> Later we can build these examples with C++, this doesn't require any
> update in build system.
>
next prev parent reply other threads:[~2024-05-01 14:14 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-28 7:46 Mattias Rönnblom
2024-04-29 8:01 ` Ferruh Yigit
2024-04-29 22:49 ` Tyler Retzlaff
2024-04-30 13:52 ` Patrick Robb
2024-04-30 18:01 ` Tyler Retzlaff
2024-04-30 20:13 ` Mattias Rönnblom
2024-04-30 20:57 ` Patrick Robb
2024-05-01 9:10 ` Ferruh Yigit
2024-05-01 10:15 ` Bruce Richardson
2024-05-01 14:14 ` Mattias Rönnblom [this message]
2024-05-01 14:38 ` Ferruh Yigit
2024-05-01 14:45 ` Bruce Richardson
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