Simon

On 03/17/2017 01:24 PM, Simon Glass wrote:
> +ML
>
> Hi Dan,
>
> On 17 March 2017 at 12:16, Dan Murphy <dmur...@ti.com> wrote:
>> Simon
>>
>> I wanted to drop you a note to see if you have any advice on how to fix this 
>> issue.
>>
>> In the attached .config file we enable
>>
>> CONFIG_SPL_SYS_MALLOC_SIMPLE and CONFIG_SPL_DFU_SUPPORT which we need 
>> CONFIG_SPL_DFU_RAM
>>
>> When doing this we find that there is a build error
>>
>> common/built-in.o: In function `xrealloc':
>> common/cli_hush.c:3349: undefined reference to `realloc_simple'
>> common/built-in.o: In function `done_word':
>> common/cli_hush.c:2494: undefined reference to `realloc_simple'
>> cli_hush.c:2499: undefined reference to `realloc_simple'
>> common/built-in.o: In function `b_check_space':
>> common/cli_hush.c:876: undefined reference to `realloc_simple'
>> make[1]: *** [spl/u-boot-spl] Error 1
>> make: *** [spl/u-boot-spl] Error 2
>>
>> In digging into this I am finding that realloc_simple is not defined 
>> anywhere in uboot.  malloc_simple.c seems
>> to be missing the implementation.
>>
>> I am looking to see if you have a patch that fixes this issue or if you can 
>> guide us to a resolution.
>>
>> Right now our only work around is to disable the HUSH_PARSER or turn off the 
>> MALLOC simple.  Which according to
>> Lokesh, CC'd, is needed for DM support.
> So SPL is using hush? Is there a description somewhere of what it does
> with that?

HUSH_PARSER was added to the TI config in commit adad96e60 configs: Re-sync 
HUSH options.

HUSH calls realloc in the builtin functions.  I am not sure what SPL would do 
with the HUSH.

> If you have enough space for hush I wonder whether you can just use
> full malloc() in SPL? You could implement realloc_simple() by just
> calling malloc_simple() and copying the old data over, but it is
> inefficient.
We could work around it but the undef reference will still exist for other code 
that would need realloc.

Lokesh

Do we run out of room using full malloc support in the SPL with the DM code 
added?

Dan

> Regards,
> Simon


-- 
------------------
Dan Murphy

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