[U-Boot] [PATCH] spl: add debug print for early malloc usage

Marek Vasut marex at denx.de
Fri Mar 1 10:45:53 UTC 2019


On 3/1/19 11:37 AM, Simon Goldschmidt wrote:
> On Fri, Mar 1, 2019 at 11:30 AM Marek Vasut <marex at denx.de> wrote:
>>
>> On 2/26/19 10:27 PM, Simon Goldschmidt wrote:
>>> To find out how big the early malloc heap must be in SPL, add a debug
>>> print statement that dumps its usage before switching to relocated heap
>>> in spl_relocate_stack_gd() via CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN.
>>>
>>> Signed-off-by: Simon Goldschmidt <simon.k.r.goldschmidt at gmail.com>
>>> ---
>>>
>>>  common/spl/spl.c | 2 ++
>>>  1 file changed, 2 insertions(+)
>>>
>>> diff --git a/common/spl/spl.c b/common/spl/spl.c
>>> index 2e2af1b28e..88d4b8a9bf 100644
>>> --- a/common/spl/spl.c
>>> +++ b/common/spl/spl.c
>>> @@ -728,6 +728,8 @@ ulong spl_relocate_stack_gd(void)
>>>
>>>  #if defined(CONFIG_SPL_SYS_MALLOC_SIMPLE) && CONFIG_VAL(SYS_MALLOC_F_LEN)
>>>       if (CONFIG_SPL_STACK_R_MALLOC_SIMPLE_LEN) {
>>> +             debug("SPL malloc() before relocation used 0x%lx bytes (%ld KB)\n",
>>> +                   gd->malloc_ptr, gd->malloc_ptr / 1024);
>>
>> Shouldn't this use %p ?
> 
> Despite its name, 'gd->malloc_ptr' is of type 'unsigned long', so I
> think this is
> correct. After all, I only copied the code from other places where the heap
> usage is dumped, too.

Isn't that broken on some arm64 systems then ? :)

-- 
Best regards,
Marek Vasut


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