tools/spl_size_limit.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Copyright (c) 2019, Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
   4  *
   5  * This tool helps to return the size available for SPL image during build
   6  */
   7
   8 #include <generated/autoconf.h>
   9 #include <generated/generic-asm-offsets.h>
  10
  11 int main(int argc, char *argv[])
  12 {
  13         int spl_size_limit = 0;
  14
  15 #ifdef CONFIG_SPL_SIZE_LIMIT
  16         spl_size_limit = CONFIG_SPL_SIZE_LIMIT;
  17 #ifdef CONFIG_SPL_SIZE_LIMIT_SUBTRACT_GD
  18         spl_size_limit -= GENERATED_GBL_DATA_SIZE;
  19 #endif
  20 #ifdef CONFIG_SPL_SIZE_LIMIT_SUBTRACT_MALLOC
  21         spl_size_limit -= CONFIG_SPL_SYS_MALLOC_F_LEN;
  22 #endif
  23 #ifdef CONFIG_SPL_SIZE_LIMIT_PROVIDE_STACK
  24         spl_size_limit -= CONFIG_SPL_SIZE_LIMIT_PROVIDE_STACK;
  25 #endif
  26 #endif
  27
  28         printf("%d", spl_size_limit);
  29         return 0;
  30 }