lib/asm-offsets.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * Adapted from Linux v2.6.36 kernel: arch/powerpc/kernel/asm-offsets.c
   4  *
   5  * This program is used to generate definitions needed by
   6  * assembly language modules.
   7  *
   8  * We use the technique used in the OSF Mach kernel code:
   9  * generate asm statements containing #defines,
  10  * compile this file to assembler, and then extract the
  11  * #defines from the assembly-language output.
  12  */
  13
  14 #include <asm-offsets.h>
  15 #include <asm/global_data.h>
  16 #include <asm/u-boot.h>
  17
  18 #include <linux/kbuild.h>
  19
  20 int main(void)
  21 {
  22         /* Round up to make sure size gives nice stack alignment */
  23         DEFINE(GENERATED_GBL_DATA_SIZE,
  24                 (sizeof(struct global_data) + 15) & ~15);
  25
  26         DEFINE(GENERATED_BD_INFO_SIZE,
  27                 (sizeof(struct bd_info) + 15) & ~15);
  28
  29         DEFINE(GD_SIZE, sizeof(struct global_data));
  30
  31         DEFINE(GD_BD, offsetof(struct global_data, bd));
  32
  33         DEFINE(GD_FLAGS, offsetof(struct global_data, flags));
  34
  35 #if CONFIG_IS_ENABLED(SYS_MALLOC_F)
  36         DEFINE(GD_MALLOC_BASE, offsetof(struct global_data, malloc_base));
  37 #endif
  38
  39         DEFINE(GD_RELOCADDR, offsetof(struct global_data, relocaddr));
  40
  41         DEFINE(GD_RELOC_OFF, offsetof(struct global_data, reloc_off));
  42
  43         DEFINE(GD_START_ADDR_SP, offsetof(struct global_data, start_addr_sp));
  44
  45         DEFINE(GD_NEW_GD, offsetof(struct global_data, new_gd));
  46
  47         DEFINE(GD_ENV_ADDR, offsetof(struct global_data, env_addr));
  48
  49         return 0;
  50 }