1/* SPDX-License-Identifier: GPL-2.0 */
2#include <asm/page.h>
3
4/*
5 * .boot.data section is shared between the decompressor code and the
6 * decompressed kernel. The decompressor will store values in it, and copy
7 * over to the decompressed image before starting it.
8 *
9 * .boot.data variables are kept in separate .boot.data.<var name> sections,
10 * which are sorted by alignment first, then by name before being merged
11 * into single .boot.data section. This way big holes cased by page aligned
12 * structs are avoided and linker produces consistent result.
13 */
14#define BOOT_DATA							\
15	. = ALIGN(PAGE_SIZE);						\
16	.boot.data : {							\
17		__boot_data_start = .;					\
18		*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.boot.data*)))		\
19		__boot_data_end = .;					\
20	}
21
22/*
23 * .boot.preserved.data is similar to .boot.data, but it is not part of the
24 * .init section and thus will be preserved for later use in the decompressed
25 * kernel.
26 */
27#define BOOT_DATA_PRESERVED						\
28	. = ALIGN(PAGE_SIZE);						\
29	.boot.preserved.data : {					\
30		__boot_data_preserved_start = .;			\
31		*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.boot.preserved.data*))) \
32		__boot_data_preserved_end = .;				\
33	}
34