miri/shims/wasi/
foreign_items.rs1use rustc_middle::ty::Ty;
2use rustc_span::Symbol;
3use rustc_target::callconv::{Conv, FnAbi};
4
5use crate::shims::alloc::EvalContextExt as _;
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 "posix_memalign" => {
25 let [memptr, align, size] = this.check_shim(abi, Conv::C, link_name, args)?;
26 let result = this.posix_memalign(memptr, align, size)?;
27 this.write_scalar(result, dest)?;
28 }
29 "aligned_alloc" => {
30 let [align, size] = this.check_shim(abi, Conv::C, link_name, args)?;
31 let res = this.aligned_alloc(align, size)?;
32 this.write_pointer(res, dest)?;
33 }
34
35 _ => return interp_ok(EmulateItemResult::NotSupported),
36 }
37 interp_ok(EmulateItemResult::NeedsReturn)
38 }
39}