[U-Boot] how compilor know where .text section starts from?

[chen gong]

hank peng 写道:
> 2008/12/3 Wolfgang Denk <wd at denx.de>:
>> Dear hank.peng <pengxihan at gmail.com>,
>>
>> repl: bad addresses:
>>        hank.peng <pengxihan at gmail.com> -- no at-sign after local-part (<)
>>
>> Please fix the mail address you provide in your headers as return
>> address. Either get rid of the dot, or add quotes.
>>
> Fixed, :)
>> In message <389deec70812022235v3f7ebedav57a62bcca04a19f0 at mail.gmail.com> you wrote:
>>> I am new to uboot and reading source code, I have a question: how does
>>> compilor know where .text section starts from?
>> It doesn't. The compiler knows not much about the location of
>> segments. That's a matter the linker deals with.
>>
>>> For example, I am using MPC8548CDS, document says .text section begins
>>> from 0xfff8000, but I haven't find this value in u-boot.lds?
>>> So it must be specified in some other place, right?
>> See board/<name>/config.mk
>>
> I see that, so you mean linker will read TEXT_BASE from config.mk.
> Can I specify its value in u-boot.lds?
Sure, of course you can. But you must ensure when CPU boots up, it can
find the correct entrance.