From: Anatolij Gustschin <agust@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] what/where is image_entry()
Date: Thu, 24 Nov 2016 11:04:48 +0100 [thread overview]
Message-ID: <20161124110448.4cb3ad5d@crub> (raw)
In-Reply-To: <1479861891670.32641@edt.com>
On Wed, 23 Nov 2016 00:44:51 +0000
Haleigh Novak haleigh at edt.com wrote:
...
> Please forgive the uber-beginner question but I can not find anything related online,
> I have been digging around in the uboot source and I stumbled on the image_entry()
> function; sometimes it has parameters and sometimes it does not. I am unable to
> locate the source(s) of the function, so I can not see how it works. Could someone
> explain what image_entry() actually does or at least point me to where it is defined?
it starts execution of the first code in the U-Boot image at address
defined with CONFIG_SYS_TEXT_BASE. What it actually does is platform
dependent. Compile the image for your target and then search for this
address the System.map file. On ARM there will be a _start label for
this address, it is usually some code in assembly file (branch
instruction at reset vector).
--
Anatolij
prev parent reply other threads:[~2016-11-24 10:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-23 0:44 [U-Boot] what/where is image_entry() Haleigh Novak
2016-11-24 10:04 ` Anatolij Gustschin [this message]
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