miri/shims/unix/netbsd/
foreign_items.rs

1use rustc_middle::ty::Ty;
2use rustc_span::Symbol;
3use rustc_target::callconv::FnAbi;
4
5use crate::shims::unix::*;
6use crate::*;
7
8pub fn is_dyn_sym(_name: &str) -> bool {
9    false
10}
11
12impl<'tcx> EvalContextExt<'tcx> for crate::MiriInterpCx<'tcx> {}
13pub trait EvalContextExt<'tcx>: crate::MiriInterpCxExt<'tcx> {
14    fn emulate_foreign_item_inner(
15        &mut self,
16        link_name: Symbol,
17        abi: &FnAbi<'tcx, Ty<'tcx>>,
18        args: &[OpTy<'tcx>],
19        dest: &MPlaceTy<'tcx>,
20    ) -> InterpResult<'tcx, EmulateItemResult> {
21        let this = self.eval_context_mut();
22        match link_name.as_str() {
23            // Environment
24            "__unsetenv13" => {
25                let [name] = this
26                    .check_shim_sig(shim_sig!(extern "C" fn(*_) -> i32), (link_name, abi, args))?;
27                let result = this.unsetenv(name)?;
28                this.write_scalar(result, dest)?;
29            }
30
31            // Miscellaneous
32            "__errno" => {
33                let [] =
34                    this.check_shim_sig(shim_sig!(extern "C" fn() -> *_), (link_name, abi, args))?;
35                let errno_place = this.last_error_place()?;
36                this.write_scalar(errno_place.to_ref(this).to_scalar(), dest)?;
37            }
38
39            _ => return interp_ok(EmulateItemResult::NotSupported),
40        }
41        interp_ok(EmulateItemResult::NeedsReturn)
42    }
43}
miri/shims/unix/netbsd/foreign_items.rs

miri/shims/unix/netbsd/
foreign_items.rs
