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56 lines
1.3 KiB
Markdown
56 lines
1.3 KiB
Markdown
# Linker file format
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```C
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struct object_file {
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uint64_t magic; // ".oo-bin"
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uint64_t version; // 1
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uint64_t architecture; // AMD64(0)
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uint64_t offsets_offset;
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struct offsets {
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uint64_t strings;
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uint64_t sections;
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uint64_t symbols;
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uint64_t relocations;
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} offsets;
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struct string_table {
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uint64_t size;
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uint8_t data[static size];
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} strings;
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struct section_table {
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uint32_t count;
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struct section_entry {
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uint32_t name;
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uint64_t offset;
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uint64_t size_on_disk;
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uint64_t size_in_memory;
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uint64_t flags;
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} sections[static count];
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} sections;
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struct symbol_table {
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uint32_t count;
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struct symbol_entry {
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uint32_t name;
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uint8_t kind; // IMPORT(0) | EXPORT(1) | LOCAL(2)
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uint32_t section;
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uint64_t offset;
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} symbols[static count];
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} symbols;
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struct relocation_table {
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uint32_t count;
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struct relocation_entry {
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uint32_t section;
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uint64_t offset;
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uint8_t size;
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uint32_t symbol;
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uint8_t kind; // ABSOLUTE(0) | RELATIVE(1)
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} relocations[static count];
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} relocations;
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};
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```
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