fix to lint errors

Signed-off-by: Jun Kimura <junkxdev@gmail.com>

Author: bluele

sgx-trts/src/lib.rs

@@ -63,6 +63,7 @@
 //!
 
 #![no_std]
+#![allow(stable_features)]
 #![feature(allocator_api)]
 #![feature(specialization)]
 #![feature(vec_into_raw_parts)]

sgx-tseal/src/aad.rs

@@ -371,7 +371,7 @@ impl<'a, T: 'a + Copy + ContiguousMemory> SgxMacAadata<'a, [T]> {
         if size > aad_len {
             return Err(sgx_status_t::SGX_ERROR_MAC_MISMATCH);
         }
-        if (aad_len % size) != 0 {
+        if !aad_len.is_multiple_of(size) {
             return Err(sgx_status_t::SGX_ERROR_MAC_MISMATCH);
         }
         self.inner.unmac_aadata().map(|x| {

sgx-tseal/src/seal.rs

@@ -675,7 +675,7 @@ impl<'a, T: 'a + Copy + ContiguousMemory> SgxSealedData<'a, [T]> {
         if size > encrypt_len {
             return Err(sgx_status_t::SGX_ERROR_MAC_MISMATCH);
         }
-        if (encrypt_len % size) != 0 {
+        if !encrypt_len.is_multiple_of(size) {
             return Err(sgx_status_t::SGX_ERROR_MAC_MISMATCH);
         }
 

sgx-urts/src/signal.rs

@@ -233,7 +233,7 @@ pub extern "C" fn u_sigaction_ocall(
             .register_signal(signo.unwrap(), enclave_id);
 
         let new_act = sigaction {
-            sa_sigaction: handle_signal_entry as usize,
+            sa_sigaction: handle_signal_entry as *const () as usize,
             // Set the flag so that sa_sigaction is registered as the signal handler
             // instead of sa_handler.
             sa_flags: e_act.sa_flags | SA_SIGINFO,

unit-test/app/src/main.rs

@@ -95,7 +95,7 @@ extern "C" fn sigill_handler(_sig: libc::c_int, _info: *mut siginfo_t, context:
 fn install_sigill_handler() -> Result<(), String> {
     // Install our handler
     let mut sa: sigaction = unsafe { mem::zeroed() };
-    sa.sa_sigaction = sigill_handler as usize;
+    sa.sa_sigaction = sigill_handler as *const () as usize;
     sa.sa_flags = SA_SIGINFO | SA_NODEFER | SA_RESTART;
     unsafe {
         libc::sigemptyset(&mut sa.sa_mask);