[U-Boot] [PATCH v3 03/14] dm: Split the simple malloc() implementation into its own file

[Simon Glass]

On 11 November 2014 at 01:16, Simon Glass <sjg at chromium.org> wrote:
> The simple malloc() implementation is used when memory is tight. It provides
> a simple buffer with an incrementing pointer.
>
> At present the implementation is inside dlmalloc. Move it into its own file
> so that it is easier to find.
>
> Rather than using relocation as a signal that the full malloc() is
> available, add a special GD_FLG_FULL_MALLOC_INIT flag. This signals that the
> simple malloc() should no longer be used.
>
> In some cases, such as SPL, even the code space used by the full malloc() is
> wasteful. Add a CONFIG_SYS_MALLOC_SIMPLE option to provide only the simple
> malloc. In this case the full malloc is not available at all. It saves about
> 1KB of code space and about 0.5KB of data on Thumb 2.
>
> Acked-by: Tom Rini <trini at ti.com>
> Signed-off-by: Simon Glass <sjg at chromium.org>
> ---
>
> Changes in v3: None
> Changes in v2:
> - Correct the Makefile condition for simple_malloc
>
>  common/Makefile                   |  3 ++
>  common/board_r.c                  |  3 +-
>  common/dlmalloc.c                 | 19 ++++---------
>  common/malloc_simple.c            | 39 +++++++++++++++++++++++++
>  include/asm-generic/global_data.h |  1 +
>  include/malloc.h                  | 60 ++++++++++++++++++++++++---------------
>  6 files changed, 87 insertions(+), 38 deletions(-)
>  create mode 100644 common/malloc_simple.c

Applied to u-boot-dm.