sgx_tstd/src/rt.rs

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//
//   http://www.apache.org/licenses/LICENSE-2.0
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//! Runtime services

use sgx_types::sgx_enclave_id_t;
use crate::enclave;
use alloc_crate::slice;
use core::str;
// Reexport some of our utilities which are expected by other crates.
pub use crate::panicking::{begin_panic, begin_panic_fmt, update_panic_count};
pub use crate::sys_common::at_exit;
use crate::sys_common::cleanup;
use crate::sync::Once;

static INIT: Once = Once::new();

#[no_mangle]
pub extern "C" fn t_global_exit_ecall() {
}

#[no_mangle]
pub extern "C" fn t_global_init_ecall(id: u64, path: *const u8, len: usize) {
    INIT.call_once(|| {
        enclave::set_enclave_id(id as sgx_enclave_id_t);
        let s = unsafe {
            let str_slice = slice::from_raw_parts(path, len);
            str::from_utf8_unchecked(str_slice)
        };
        enclave::set_enclave_path(s);
    });
}

global_dtors_object! {
    GLOBAL_DTORS, global_exit = { cleanup(); }
}