Edit RPATH

[0x41337]

Hi, I'm new to LIEF, I use the Rust version lief (other than lief_ffi) and I would like to know how I could modify the RPATH? Something like add_rpath for example.

[romainthomas]

Hi @0x41337,

Right now this is not doable in Rust but I'll see to add bindings for that

[0x41337]

Oh, ok... @romainthomas , thanks for your work! Is it possible to edit in the Python version?

[romainthomas]

Yes it is but this feature is not part of the 0.16.x releases so if you want to test it you need to use a nightly build.

LIEF/tests/macho/test_builder.py

Lines 665 to 683 in 3d4ff6f

	def test_issue_1204(tmp_path: Path):
	macho = lief.MachO.parse(get_sample("MachO/lief-dwarf-plugin-darwin-arm64.dylib")).at(0)
	macho.rpath.path += '/a/very/long/path/that/needs/expansion'
	out = tmp_path / "out.macho"
	macho.write(out.as_posix())
	new = lief.MachO.parse(out).at(0)
	lief.MachO.check_layout(new)
	assert new.rpath.path == '@loader_path/../a/very/long/path/that/needs/expansion'
	macho = lief.MachO.parse(get_sample("MachO/lief-dwarf-plugin-darwin-arm64.dylib")).at(0)
	macho.rpath.path += '/a/very/long/path/that/needs/expansion/' + 'a' * (macho.available_command_space + 10)
	rpath = macho.rpath.path
	out = tmp_path / "out2.macho"
	macho.write(out.as_posix())
	new = lief.MachO.parse(out).at(0)
	lief.MachO.check_layout(new)
	assert new.rpath.path == rpath

[0x41337]

@romainthomas This will do nicely! Thanks for taking the time out of your day to respond!