[guest/{security_cookie,security_check,entrypoint,lib}] remove usage of __security_cookie symbol

The __security_cookie symbol and its usage were only required by the MSVC toolchain. W/ the removal of PE support,
we can remove it from the guest lib.

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

Author: danbugs

src/hyperlight_guest/src/entrypoint.rs

@@ -27,7 +27,7 @@ use crate::exceptions::{gdt::load_gdt, idtr::load_idt};
 use crate::guest_function_call::dispatch_function;
 use crate::guest_logger::init_logger;
 use crate::host_function_call::outb;
-use crate::{__security_cookie, HEAP_ALLOCATOR, MIN_STACK_ADDRESS, OS_PAGE_SIZE, P_PEB};
+use crate::{HEAP_ALLOCATOR, MIN_STACK_ADDRESS, OS_PAGE_SIZE, P_PEB};
 
 #[inline(never)]
 pub fn halt() {
@@ -85,7 +85,6 @@ pub extern "C" fn entrypoint(peb_address: u64, seed: u64, ops: u64, max_log_leve
         unsafe {
             P_PEB = Some(peb_address as *mut HyperlightPEB);
             let peb_ptr = P_PEB.unwrap();
-            __security_cookie = peb_address ^ seed;
 
             let srand_seed = ((peb_address << 8 ^ seed >> 4) >> 32) as u32;
 

src/hyperlight_guest/src/guest_error.rs

@@ -40,11 +40,6 @@ pub(crate) fn set_error(error_code: ErrorCode, message: &str) {
     write_error(error_code, Some(message));
 }
 
-pub(crate) fn set_error_and_halt(error_code: ErrorCode, message: &str) {
-    set_error(error_code, message);
-    halt();
-}
-
 /// Exposes a C API to allow the guest to set an error
 ///
 /// # Safety

src/hyperlight_guest/src/lib.rs

@@ -41,7 +41,6 @@ pub mod host_function_call;
 pub(crate) mod guest_logger;
 pub mod memory;
 pub mod print;
-pub(crate) mod security_check;
 
 pub mod error;
 #[cfg(target_arch = "x86_64")]
@@ -74,11 +73,6 @@ fn panic(info: &core::panic::PanicInfo) -> ! {
 #[global_allocator]
 pub(crate) static HEAP_ALLOCATOR: LockedHeap<32> = LockedHeap::<32>::empty();
 
-///cbindgen:ignore
-#[no_mangle]
-#[clippy::allow(clippy::non_upper_case_globals)]
-pub(crate) static mut __security_cookie: u64 = 0;
-
 pub(crate) static mut P_PEB: Option<*mut HyperlightPEB> = None;
 pub static mut MIN_STACK_ADDRESS: u64 = 0;