20 lines
1.4 KiB
Markdown
20 lines
1.4 KiB
Markdown
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---
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title: "mapping.h"
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summary: "handles the memory mappings that an ELF file can request"
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---
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# `elf_mapping_T` - struct
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A mapping describes an area of memory,
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that should be copied from the elf file into the RAM and how/where it should be mapped.
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| Name | Type | Description |
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|----------------|----------|------------------------------------------------------------------------------------------------------------------|
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| offset_file | uint64_t | The mappings' start in the elf file |
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| offset_virtual | uint64_t | The mappings' start in memory |
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| length_file | uint64_t | The mappings' size in the elf file |
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| length_virtual | uint64_t | The mappings' size in memory, if this is bigger than _length_file_ the remaining space will be filled with zeros |
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# `elf_mappings_apply(mappings, num_mappings, buffer, base, page_map)` - function (void)
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Maps all **_mappings_** into **_page_map_** and copies the related data from **_buffer_** (elf file) to the mapped memory.
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**_base_** specifies where the mappings should start in the virtual address space.
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