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@@ -49,7 +49,7 @@ entry size | u32
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string table | u32
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section headers | variable
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-Note that this format differs from the description in the Multiboot specification because if seems to be wrong for ELF 64 kernels: The `number of entries`, `entry size`, and `string table` fields seem to be `u32` instead of `u16` (but I'm not sure on this).
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+Note that this format differs from the description in the Multiboot specification because if seems to be wrong for ELF 64 kernels: The `number of entries`, `entry size`, and `string table` fields seem to be `u32` instead of `u16`. The reason is that [GRUB2 does it this way](https://github.com/josefbacik/grub2/blob/96695ad84ce9c93f057ba53ae77d04d8561586e9/include/multiboot2.h#L298-L300).
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The section headers are just copied from the ELF file, so we need to look at the ELF specification to find the corresponding structure definition. Our kernel is a 64-bit ELF file, so we need to look at the ELF-64 specification ([PDF][ELF specification]). According to section 4 and figure 3, a section header has the following format:
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Philipp Oppermann