u-boot/tools/spl_size_limit.c

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// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (c) 2019, Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
*
* This tool helps to return the size available for SPL image during build
*/
#include <generated/autoconf.h>
#include <generated/generic-asm-offsets.h>
int main(int argc, char *argv[])
{
int spl_size_limit = 0;
#ifdef CONFIG_SPL_SIZE_LIMIT
spl_size_limit = CONFIG_SPL_SIZE_LIMIT;
#if defined(CONFIG_IMX_HAB) && defined(CONFIG_CSF_SIZE)
spl_size_limit -= CONFIG_CSF_SIZE;
#endif
#ifdef CONFIG_SPL_SIZE_LIMIT_SUBTRACT_GD
spl_size_limit -= GENERATED_GBL_DATA_SIZE;
#endif
#ifdef CONFIG_SPL_SIZE_LIMIT_SUBTRACT_MALLOC
spl_size_limit -= CONFIG_SPL_SYS_MALLOC_F_LEN;
#endif
#ifdef CONFIG_SPL_SIZE_LIMIT_PROVIDE_STACK
spl_size_limit -= CONFIG_SPL_SIZE_LIMIT_PROVIDE_STACK;
#endif
#endif
printf("%d", spl_size_limit);
return 0;
}