From: "Gaëtan Rivet" <gaetan.rivet@6wind.com>
To: Gadre Nayan <gadrenayan@gmail.com>
Cc: users@dpdk.org
Subject: Re: [dpdk-users] RTE_REGISTER_BUS
Date: Mon, 25 Nov 2019 16:25:31 +0100 [thread overview]
Message-ID: <20191125152531.GK28445@bidouze.6wind.com> (raw)
In-Reply-To: <CAKJ7aR43gMJmiHMtQ_ZnZmazszfcr1mgB29YT1PwXCr4R7zZzA@mail.gmail.com>
On Mon, Nov 25, 2019 at 08:13:00PM +0530, Gadre Nayan wrote:
> Hi,
>
> I am trying to understand RTE_REGISTER_BUS for PCI Bus.
>
> 1. Load uio, igb_uio, bind the NIC with igb_uio.
> 2. load the application.
>
> Step 1, is mostly about registering Drivers with the PCI bus.
> I am looking at when does RTE_REGISTER_BUS get called in this process.
>
> Thanks
> Nayan
Hello,
RTE_REGISTER_ functions all uses RTE_INIT_PRIO(n) macro.
This macro will only add the GCC attribute __attribute__((constructor(n), used))
to the symbole defined with RTE_INIT_PRIO() (attribute supported by all
major compiler).
This attribute adds the related function to the .init section of the
generated ELF. This section is executed before the main() of the
program.
This allows libraries to define init and cleanup code that is executed
automatically when linking against the lib.
--
Gaëtan Rivet
6WIND
next prev parent reply other threads:[~2019-11-25 15:25 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-25 14:43 Gadre Nayan
2019-11-25 15:25 ` Gaëtan Rivet [this message]
2019-11-26 3:45 ` Gadre Nayan
2019-11-26 9:40 ` Gaëtan Rivet
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