diff options
Diffstat (limited to 'arch/s390/include/asm/sections.h')
| -rw-r--r-- | arch/s390/include/asm/sections.h | 23 |
1 files changed, 22 insertions, 1 deletions
diff --git a/arch/s390/include/asm/sections.h b/arch/s390/include/asm/sections.h index fbd9116eb17b..0486e6ef62bf 100644 --- a/arch/s390/include/asm/sections.h +++ b/arch/s390/include/asm/sections.h @@ -1,8 +1,29 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _S390_SECTIONS_H #define _S390_SECTIONS_H #include <asm-generic/sections.h> -extern char _eshared[], _ehead[]; +/* + * .boot.data section contains variables "shared" between the decompressor and + * the decompressed kernel. The decompressor will store values in them, and + * copy over to the decompressed image before starting it. + * + * Each variable end up in its own intermediate section .boot.data.<var name>, + * those sections are later sorted by alignment + name and merged together into + * final .boot.data section, which should be identical in the decompressor and + * the decompressed kernel (that is checked during the build). + */ +#define __bootdata(var) __section(".boot.data." #var) var + +/* + * .boot.preserved.data is similar to .boot.data, but it is not part of the + * .init section and thus will be preserved for later use in the decompressed + * kernel. + */ +#define __bootdata_preserved(var) __section(".boot.preserved.data." #var) var + +extern char *__samode31, *__eamode31; +extern char *__stext_amode31, *__etext_amode31; #endif |