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Add pthread_attr_getstack shim

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infrandomness 2022-06-12 11:47:43 +02:00
parent e89b4d6df2
commit f2cbd3e2bc
1 changed files with 21 additions and 0 deletions
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21
src/shims/unix/freebsd/foreign_items.rs
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@ -18,6 +18,27 @@ pub trait EvalContextExt<'mir, 'tcx: 'mir>: crate::MiriEvalContextExt<'mir, 'tcx
) -> InterpResult<'tcx, EmulateByNameResult<'mir, 'tcx>> {
let this = self.eval_context_mut();
match link_name.as_str() {
// Querying system information
"pthread_attr_getstack" => {
// We don't support "pthread_attr_setstack", so we just pretend all stacks have the same values here.
let [attr_place, addr_place, size_place] =
this.check_shim(abi, Abi::C { unwind: false }, link_name, args)?;
this.deref_operand(attr_place)?;
let addr_place = this.deref_operand(addr_place)?;
let size_place = this.deref_operand(size_place)?;
this.write_scalar(
Scalar::from_uint(STACK_ADDR, this.pointer_size()),
&addr_place.into(),
)?;
this.write_scalar(
Scalar::from_uint(STACK_SIZE, this.pointer_size()),
&size_place.into(),
)?;
// Return success (`0`).
this.write_null(dest)?;
}
_ => return Ok(EmulateByNameResult::NotSupported),
}
Ok(EmulateByNameResult::NeedsJumping)