aya/test/integration-test/src/tests/relocations.rs

73 lines
1.9 KiB
Rust

use aya::{
programs::{UProbe, Xdp},
util::KernelVersion,
Ebpf,
};
use test_log::test;
#[test]
fn relocations() {
let bpf = load_and_attach("test_64_32_call_relocs", crate::RELOCATIONS);
trigger_relocations_program();
let m = aya::maps::Array::<_, u64>::try_from(bpf.map("RESULTS").unwrap()).unwrap();
assert_eq!(m.get(&0, 0).unwrap(), 1);
assert_eq!(m.get(&1, 0).unwrap(), 2);
assert_eq!(m.get(&2, 0).unwrap(), 3);
}
#[test]
fn text_64_64_reloc() {
let kernel_version = KernelVersion::current().unwrap();
if kernel_version < KernelVersion::new(5, 13, 0) {
eprintln!("skipping test on kernel {kernel_version:?}, support for bpf_for_each_map_elem was added in 5.13.0; see https://github.com/torvalds/linux/commit/69c087b");
return;
}
let mut bpf = load_and_attach("test_text_64_64_reloc", crate::TEXT_64_64_RELOC);
let mut m = aya::maps::Array::<_, u64>::try_from(bpf.map_mut("RESULTS").unwrap()).unwrap();
m.set(0, 1, 0).unwrap();
m.set(1, 2, 0).unwrap();
trigger_relocations_program();
assert_eq!(m.get(&0, 0).unwrap(), 2);
assert_eq!(m.get(&1, 0).unwrap(), 3);
}
#[test]
fn variables_reloc() {
let mut bpf = Ebpf::load(crate::VARIABLES_RELOC).unwrap();
let prog: &mut Xdp = bpf
.program_mut("variables_reloc")
.unwrap()
.try_into()
.unwrap();
prog.load().unwrap();
}
fn load_and_attach(name: &str, bytes: &[u8]) -> Ebpf {
let mut bpf = Ebpf::load(bytes).unwrap();
let prog: &mut UProbe = bpf.program_mut(name).unwrap().try_into().unwrap();
prog.load().unwrap();
prog.attach(
Some("trigger_relocations_program"),
0,
"/proc/self/exe",
None,
)
.unwrap();
bpf
}
#[no_mangle]
#[inline(never)]
pub extern "C" fn trigger_relocations_program() {
core::hint::black_box(trigger_relocations_program);
}