Re: malloc() alignment on 32 bit

[Enrico Scholz <enrico.scholz@sigma-chemnitz.de>]

Sascha Hauer <sha@pengutronix.de> writes:

> So it seems it's really a good idea to increase malloc alignment
> accordingly.

But this does not seem to be trivial :(

A naive

| -	ALIGN_SIZE_LOG2 = 2,
| +	ALIGN_SIZE_LOG2 = 3,

triggers a lot of warnings.


I think, ALIGN_SIZE in tlsf_add_pool() and in the higher level functions
(tlsf_malloc(), _memalign(), _realloc()) should be replaced by a new,
bigger constant.

But this appears invasive and I have no idea about tlsf and the sideeffects :(


There exists https://github.com/mattconte/tlsf/issues/16 which asks for
proper alignment; but project seems to be unmaintained.


Replacing 'malloc()' with 'memalign()' on problems, seems the best idea
for now.


Enrico