when use dynamic load, RAP module should have unresolved symbol most time,
And maybe unresolved symbols scatter over 2 or more files, one BaseImage is
not enough.
So I suggest rtems-ld just throw a warning not a error.
Another suggestion is option -e(--entry) is not essential. We just use dlsym
to find a entry.(or there is another way to run entry?)
------------------ Original ------------------
From: "Chris Johns"<chr...@rtems.org>;
Date: Thu, Sep 12, 2019 11:22 AM
To: "jaeho jo"<hot486...@gmail.com>;"users"<users@rtems.org>;
Subject: Re: symbol resolve between the two RAP files
On 10/9/19 10:23 am, jaeho jo wrote:
> I wonder if I can resolve the symbol between the two RAP files for dynamic
> load.
>
> ex)
> a.c. / b.c. / main.c.
>
> a.c. -> a.rap
> - define 'a_test_func()'
>
> b.c. -> b.rap
> - use 'a_test_func()'
>
> main.c -> BaseImage
>
>
> Attempting to generate b.c. as b.rap using rtems-ld, an error occurs
> $ rtems-ld -b BaseImage -e b_main b.o -o b.rap
> => error: b.o: symbol not found: a_test_func
>
> I already know why this problem occurs, since BaseImage does not have a symbol
> for 'a_test_func'>
> Is there a way to solve this? Or is it impossible at all?
>
Have you tried ...
$ rtems-ld -b BaseImage -e b_main a.o b.o -o z.rap
?
You should be able to load modules with an unresolved error and when the module
with the symbol is loaded it is resolved.
Chris
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