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elf: add read and write support for GNU properties #541

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merged 5 commits into from
May 5, 2023

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@philipc philipc commented May 2, 2023

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@philipc philipc force-pushed the elf-gnu-prop branch 3 times, most recently from 26ded31 to e91df1d Compare May 3, 2023 07:41
@philipc philipc marked this pull request as ready for review May 4, 2023 05:53
@philipc philipc merged commit 69962ee into gimli-rs:master May 5, 2023
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@philipc philipc deleted the elf-gnu-prop branch May 5, 2023 04:45
@philipc philipc mentioned this pull request May 9, 2023
let n_name = b"GNU\0";
data.extend_from_slice(pod::bytes_of(&elf::NoteHeader32 {
n_namesz: U32::new(self.endian, n_name.len() as u32),
n_descsz: U32::new(self.endian, util::align(3 * 4, align) as u32),
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It needs to be 12 for 32-bit and 16 for 64-bit. The expression util::align(3 * 4, align) should handle that.

// Value size
data.extend_from_slice(pod::bytes_of(&U32::new(self.endian, 4)));
data.extend_from_slice(pod::bytes_of(&U32::new(self.endian, value)));
util::write_align(&mut data, align);
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Is it typical to not include padding information if it's 0? #learning

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I'm not sure I understand what you mean. util::write_align(&mut data, align) is the padding, which may be either 0 or 4 bytes.

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2 participants