[PATCH 04/40] lib: Convert str_to_list() to use alist

Sughosh Ganu sughosh.ganu at linaro.org
Thu Jul 25 14:54:32 CEST 2024


On Thu, 25 Jul 2024 at 02:24, Tom Rini <trini at konsulko.com> wrote:
>
> On Wed, Jul 24, 2024 at 11:31:48AM +0530, Sughosh Ganu wrote:
>
> > From: Simon Glass <sjg at chromium.org>
> >
> > Use this new data structure in the utility function.
> >
> > Signed-off-by: Simon Glass <sjg at chromium.org>
> > Signed-off-by: Sughosh Ganu <sughosh.ganu at linaro.org>
> > ---
> >  lib/strto.c | 35 +++++++++++++++++++----------------
> >  1 file changed, 19 insertions(+), 16 deletions(-)
>
> This is rather big growth when we didn't already have realloc:
> 05: lib: Convert str_to_list() to use alist
>    aarch64: (for 1/1 boards) all +1765.0 rodata +37.0 text +1728.0
>             xilinx_versal_mini_emmc0: all +1765 rodata +37 text +1728
>                u-boot: add: 7/0, grow: 1/0 bytes: 1728/0 (1728)
>                  function                                   old     new   delta
>                  realloc                                      -    1120   +1120
>                  alist_ensure_ptr                             -     140    +140
>                  alist_expand_to                              -     136    +136
>                  alist_init                                   -     108    +108
>                  alist_uninit_move_ptr                        -      76     +76
>                  alist_add_ptr                                -      72     +72
>                  alist_uninit                                 -      48     +48
>                  str_to_list                                204     232     +28
>

I am working on an implementation of lmb maps using lists. The list
nodes are then allocated with calloc, which I believe is included in
most of the board images. We can then compare the size impact with the
two implementations (alist vs list). Thanks.

-sughosh

> --
> Tom


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