Re: [RFC PATCH v2 6/8] tools/nolibc/stdlib: Implement `malloc()`, `calloc()`, `realloc()` and `free()`

[Ammar Faizi]

On 3/22/22 7:36 PM, Alviro Iskandar Setiawan wrote:
> On Tue, Mar 22, 2022 at 7:18 PM Ammar Faizi wrote:
> > Rounding up is not useful here, because we don't have any free list to keep
> > track the unused block of memory. I mean, even if it's rounded up, the extra
> > space after rounded up cannot be utilized with this design. There is no
> > book-keeping that tracks it.
> >
> > Though, the kernel still allocates the size in multiple page size.
>
> BTW, what David meant probably, don't call mmap() again if heap->len
> is greater than new_len. Isn't that simple enough to give it a go?

Ah yes, I get the idea now, it shouldn't be a burden for this series. I
think that small improvement is not too overkill. So I will take that
suggestion for the next series.

Thanks!

--
Ammar Faizi