xref: /openbmc/u-boot/lib/asm-offsets.c (revision 98d62e61)
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 #ifdef CONFIG_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 	return 0;
42 }
43