[guests/chkstk] remove chkstk

chkstk was a dependency of the msvc toolchain. With PE support removed, we can get rid of it.

Signed-off-by: danbugs <[email protected]>

Author: danbugs

src/hyperlight_guest/src/chkstk.rs

@@ -19,10 +19,8 @@ use alloc::vec::Vec;
 use core::ffi::{c_char, CStr};
 
 use hyperlight_common::flatbuffer_wrappers::guest_error::{ErrorCode, GuestError};
-use hyperlight_common::outb::OutBAction;
 
 use crate::entrypoint::halt;
-use crate::host_function_call::outb;
 use crate::shared_output_data::push_shared_output_data;
 
 pub(crate) fn write_error(error_code: ErrorCode, message: Option<&str>) {
@@ -47,11 +45,6 @@ pub(crate) fn set_error_and_halt(error_code: ErrorCode, message: &str) {
     halt();
 }
 
-#[no_mangle]
-pub(crate) extern "win64" fn set_stack_allocate_error() {
-    outb(OutBAction::Abort as u16, &[ErrorCode::StackOverflow as u8]);
-}
-
 /// Exposes a C API to allow the guest to set an error
 ///
 /// # Safety

src/hyperlight_guest/src/guest_error.rs

@@ -43,7 +43,6 @@ pub mod memory;
 pub mod print;
 pub(crate) mod security_check;
 
-pub mod chkstk;
 pub mod error;
 pub mod gdt;
 pub mod idt;