lib/asm-offsets.c

   1 /*
   2  * Adapted from Linux v2.6.36 kernel: arch/powerpc/kernel/asm-offsets.c
   3  *
   4  * This program is used to generate definitions needed by
   5  * assembly language modules.
   6  *
   7  * We use the technique used in the OSF Mach kernel code:
   8  * generate asm statements containing #defines,
   9  * compile this file to assembler, and then extract the
  10  * #defines from the assembly-language output.
  11  *
  12  * SPDX-License-Identifier:     GPL-2.0+
  13  */
  14
  15 #include <common.h>
  16
  17 #include <linux/kbuild.h>
  18
  19 int main(void)
  20 {
  21         /* Round up to make sure size gives nice stack alignment */
  22         DEFINE(GENERATED_GBL_DATA_SIZE,
  23                 (sizeof(struct global_data) + 15) & ~15);
  24
  25         DEFINE(GENERATED_BD_INFO_SIZE,
  26                 (sizeof(struct bd_info) + 15) & ~15);
  27
  28         DEFINE(GD_SIZE, sizeof(struct global_data));
  29
  30         DEFINE(GD_BD, offsetof(struct global_data, bd));
  31 #if CONFIG_VAL(SYS_MALLOC_F_LEN)
  32         DEFINE(GD_MALLOC_BASE, offsetof(struct global_data, malloc_base));
  33 #endif
  34
  35         DEFINE(GD_RELOCADDR, offsetof(struct global_data, relocaddr));
  36
  37         DEFINE(GD_RELOC_OFF, offsetof(struct global_data, reloc_off));
  38
  39         DEFINE(GD_START_ADDR_SP, offsetof(struct global_data, start_addr_sp));
  40
  41         DEFINE(GD_NEW_GD, offsetof(struct global_data, new_gd));
  42
  43         return 0;
  44 }