33 lines
4.6 KiB
Markdown
33 lines
4.6 KiB
Markdown
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---
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title: "elf.h"
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summary: "The ELF-parsers' heart"
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---
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#### `elf_executable_T` - struct
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This struct holds the parsed data of an ELF executable.
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| Name | Type | Description |
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|--------------|-------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------|
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| header | [elf_header_T](https://nerdcult.net/projects/noxos/docs/codebase/drivers/elf/header.h/#elf_header_t---struct) | The header of the elf file |
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| num_symbols | uint64_t | The size of _symbols_ |
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| symbols | symbol_T* | An array containing all symbols of the elf file |
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| num_mappings | uint64_t | The size of _mappings_ |
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| mappings | [elf_mapping_T](https://nerdcult.net/projects/noxos/docs/codebase/drivers/elf/mapping.h/#elf_mapping_t---struct)* | An array containing the mappings needed to load the elf file |
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| string_table | void* | A copy of the elf files `.strtab` section, all strings are referenced here to have them available even if the elf file is closed |
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#### `elf_executable_temp_T` - struct
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This struct is used while generating an [elf_executable_T](https://nerdcult.net/projects/noxos/docs/codebase/drivers/elf/elf.h/#elf_executable_t---struct).
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It holds parse-time information about the elf file.
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| Name | Type | Description |
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|-----------------------------|---------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------------------------------------------------------------------|
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| executable | [elf_executable_T](https://nerdcult.net/projects/noxos/docs/codebase/drivers/elf/elf.h/#elf_executable_t---struct)* | A pointer to the final [elf_executable_T](https://nerdcult.net/projects/noxos/docs/codebase/drivers/elf/elf.h/#elf_executable_t---struct) |
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| symbol_table | [elf_section_T](https://nerdcult.net/projects/noxos/docs/codebase/drivers/elf/section.h/#elf_section_t---struct)* | A pointer to `.symtab` in _buffer_ |
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| section_header_string_table | [elf_section_T](https://nerdcult.net/projects/noxos/docs/codebase/drivers/elf/section.h/#elf_section_t---struct)* | A pointer to `.shstrtab` in _buffer_ |
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| buffer | uint8_t* | The buffer where the executable is loaded from |
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#### `elf_executable_create(buffer)` - function (elf_executable_T*)
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Generates an [elf_executable_T](https://nerdcult.net/projects/noxos/docs/codebase/drivers/elf/elf.h/#elf_executable_t---struct) from an elf file loaded to **_buffer_** and returns a pointer to it.
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#### `elf_executable_destruct(executable)` - function (void)
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Frees all memory allocated for [**_executable_**](https://nerdcult.net/projects/noxos/docs/codebase/drivers/elf/elf.h/#elf_executable_t---struct).
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