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    • 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