• Simon Glass's avatar
    dm: Split the simple malloc() implementation into its own file · c9356be3
    Simon Glass authored
    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: default avatarTom Rini <trini@ti.com>
    Signed-off-by: default avatarSimon Glass <sjg@chromium.org>
    c9356be3
malloc_simple.c 696 Bytes