d18ab4af49
Turns out that we could flatten the tree further as there is not that many files to warrant a whole directory for this. Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
43 lines
976 B
ArmAsm
43 lines
976 B
ArmAsm
/*
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* Copyright (c) 2020 EPAM Systems
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <linker/sections.h>
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#include <arch/cpu.h>
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#include "mmu.h"
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#if CONFIG_MMU_PAGE_SIZE == 4096
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#define HEADER_PGSIZE 1
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#elif CONFIG_MMU_PAGE_SIZE == 16384
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#define HEADER_PGSIZE 2
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#elif CONFIG_MMU_PAGE_SIZE == 65536
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#define HEADER_PGSIZE 3
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#else
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#define HEADER_PGSIZE 0
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#warning "Can't determine page size for header flags"
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#endif
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#define HEADER_FLAGS (HEADER_PGSIZE << 1)
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_ASM_FILE_PROLOGUE
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SECTION_SUBSEC_FUNC(image_header,_image_header_section,_image_header)
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b __start // branch to kernel start
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.long 0 // reserved
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.quad 0 // Image load offset from start
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// of RAM, little-endian
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.quad _flash_used // Effective size of kernel
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// image, little-endian
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.quad HEADER_FLAGS // Informative flags,
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// little-endian
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.quad 0 // reserved
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.quad 0 // reserved
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.quad 0 // reserved
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.ascii "ARM\x64" // Magic number
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.long 0 // reserved
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