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update basereloc dir size

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Folkert 2022-10-19 14:12:41 +02:00
parent b23b53aa6f
commit a572622ff7
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1 changed files with 15 additions and 1 deletions
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16
crates/linker/src/pe.rs
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@ -1267,12 +1267,26 @@ fn relocate_dummy_dll_entries(executable: &mut [u8], md: &PeMetadata) {
+ md.reloc_section_index * std::mem::size_of::<ImageSectionHeader>();
let ptr = load_struct_inplace_mut::<ImageSectionHeader>(executable, reloc_section_header_start);
let new_virtual_size = ptr.virtual_size.get(LE) + added_reloc_bytes as u32;
let old_section_size = ptr.virtual_size.get(LE);
let new_virtual_size = old_section_size + added_reloc_bytes as u32;
ptr.virtual_size.set(LE, new_virtual_size);
// TODO this is rounded up, so there is extra space and it does not need to change in our current examples
// let new_size_of_raw_data = ptr.size_of_raw_data.get(LE) + added_reloc_bytes as u32;
// ptr.size_of_raw_data.set(LE, new_size_of_raw_data);
assert!(new_virtual_size <= 0x200);
// in the data directories, update the length of the base relocations
let dir = load_struct_inplace_mut::<pe::ImageDataDirectory>(
executable,
md.dynamic_relocations.data_directories_offset_in_file as usize
+ object::pe::IMAGE_DIRECTORY_ENTRY_BASERELOC
* std::mem::size_of::<pe::ImageDataDirectory>(),
);
let old_dir_size = dir.size.get(LE);
debug_assert_eq!(old_section_size, old_dir_size);
dir.size.set(LE, new_virtual_size);
}
#[cfg(test)]