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  * This program is free software; you can redistribute it and/or
  13  * modify it under the terms of the GNU General Public License
  14  * as published by the Free Software Foundation; either version
  15  * 2 of the License, or (at your option) any later version.
  16  */
  17
  18 #include <common.h>
  19
  20 #include <linux/kbuild.h>
  21
  22 int main(void)
  23 {
  24         /* Round up to make sure size gives nice stack alignment */
  25         DEFINE(GENERATED_GBL_DATA_SIZE,
  26                 (sizeof(struct global_data) + 15) & ~15);
  27
  28         DEFINE(GENERATED_BD_INFO_SIZE,
  29                 (sizeof(struct bd_info) + 15) & ~15);
  30
  31         DEFINE(GD_SIZE, sizeof(struct global_data));
  32
  33         DEFINE(GD_BD, offsetof(struct global_data, bd));
  34
  35 #if defined(CONFIG_ARM)
  36
  37         DEFINE(GD_RELOCADDR, offsetof(struct global_data, relocaddr));
  38
  39         DEFINE(GD_RELOC_OFF, offsetof(struct global_data, reloc_off));
  40
  41         DEFINE(GD_START_ADDR_SP, offsetof(struct global_data, start_addr_sp));
  42
  43 #endif
  44
  45         return 0;
  46 }