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https://github.com/tamaroning/bold

Last synced: 19 days ago
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Host: GitHub
URL: https://github.com/tamaroning/bold
Owner: tamaroning
Created: 2024-01-05T18:53:33.000Z (about 1 year ago)
Default Branch: master
Last Pushed: 2024-02-25T08:56:47.000Z (11 months ago)
Last Synced: 2024-04-18T02:12:59.344Z (9 months ago)
Language: Rust
Size: 181 KB
Stars: 3
Watchers: 1
Forks: 0
Open Issues: 0
Metadata Files:
- Readme: README.md

Awesome Lists containing this project

README

        # Bold

An experimental x86-64 linker.

This is my second linker which I write to understand how linker works.

bold aims to link Rust and C++ programs.

## Status

Implemented features are as follows:

- .o and .a files

- static link (Some relocation types are missing)

# Run

```bash

$ cargo run ...

```

```bash

$ ./tests/hello_nolibc.sh

$ ./a.out

Hello, world

```

## TODO

- Support weak symbols

    - preliminary

- Support special(?) symbols

    - _GLOBAL_OFFSET_TABLE_

    - __start* and __stop*

    - and more?

- Support SHN_COMMON

- .bss section

## References

- mold, https://github.com/rui314/mold

- ELF spec, https://refspecs.linuxfoundation.org/elf/elf.pdf

- System V ABI spec, https://refspecs.linuxbase.org/elf/x86_64-abi-0.99.pdf

- ELF Handling For Thread-Local-Storage, https://refspecs.linuxbase.org/elf/x86_64-abi-0.99.pdf

## Licenses

- gnu.ld: Copyright (C) 2014-2022 Free Software Foundation, Inc.

- Others: MIT