34 lines
1.1 KiB
C
34 lines
1.1 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#include <asm/page.h>
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/*
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* .boot.data section is shared between the decompressor code and the
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* decompressed kernel. The decompressor will store values in it, and copy
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* over to the decompressed image before starting it.
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*
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* .boot.data variables are kept in separate .boot.data.<var name> sections,
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* which are sorted by alignment first, then by name before being merged
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* into single .boot.data section. This way big holes cased by page aligned
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* structs are avoided and linker produces consistent result.
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*/
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#define BOOT_DATA \
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. = ALIGN(PAGE_SIZE); \
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.boot.data : { \
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__boot_data_start = .; \
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*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.boot.data*))) \
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__boot_data_end = .; \
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}
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/*
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* .boot.preserved.data is similar to .boot.data, but it is not part of the
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* .init section and thus will be preserved for later use in the decompressed
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* kernel.
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*/
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#define BOOT_DATA_PRESERVED \
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. = ALIGN(PAGE_SIZE); \
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.boot.preserved.data : { \
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__boot_data_preserved_start = .; \
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*(SORT_BY_ALIGNMENT(SORT_BY_NAME(.boot.preserved.data*))) \
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__boot_data_preserved_end = .; \
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}
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