examples: polish linking script

- remove wildcard imports: "use core::ffi::*;"
- since "c_size_t" is an unstable feature for current Rustc
  (2024-05-14), replace them with "usize", which is equivalent
  on ARM32 and ARM64.

examples/acipher-rs/ta/src/main.rs

@@ -17,7 +17,6 @@
 
 #![no_std]
 #![no_main]
-#![feature(c_size_t)]
 
 extern crate alloc;
 

examples/acipher-rs/ta/ta_static.rs

@@ -15,7 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 
-use core::ffi::*;
+use core::ffi::{c_int, c_void};
 use core::mem;
 use core::primitive::u64;
 
@@ -39,13 +39,13 @@ pub static ta_head: optee_utee_sys::ta_head = optee_utee_sys::ta_head {
 pub static ta_heap: [u8; TA_DATA_SIZE as usize] = [0; TA_DATA_SIZE as usize];
 
 #[no_mangle]
-pub static ta_heap_size: c_size_t = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
+pub static ta_heap_size: usize = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
 static FLAG_BOOL: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_SINGLE_INSTANCE) != 0;
 static FLAG_MULTI: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_MULTI_SESSION) != 0;
 static FLAG_INSTANCE: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_INSTANCE_KEEP_ALIVE) != 0;
 
 #[no_mangle]
-pub static ta_num_props: c_size_t = 9;
+pub static ta_num_props: usize = 9;
 
 #[no_mangle]
 pub static ta_props: [optee_utee_sys::user_ta_property; 9] = [

examples/aes-rs/ta/src/main.rs

@@ -17,7 +17,6 @@
 
 #![no_std]
 #![no_main]
-#![feature(c_size_t)]
 
 extern crate alloc;
 

examples/aes-rs/ta/ta_static.rs

@@ -15,7 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 
-use core::ffi::*;
+use core::ffi::{c_int, c_void};
 use core::mem;
 use core::primitive::u64;
 
@@ -39,13 +39,13 @@ pub static ta_head: optee_utee_sys::ta_head = optee_utee_sys::ta_head {
 pub static ta_heap: [u8; TA_DATA_SIZE as usize] = [0; TA_DATA_SIZE as usize];
 
 #[no_mangle]
-pub static ta_heap_size: c_size_t = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
+pub static ta_heap_size: usize = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
 static FLAG_BOOL: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_SINGLE_INSTANCE) != 0;
 static FLAG_MULTI: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_MULTI_SESSION) != 0;
 static FLAG_INSTANCE: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_INSTANCE_KEEP_ALIVE) != 0;
 
 #[no_mangle]
-pub static ta_num_props: c_size_t = 9;
+pub static ta_num_props: usize = 9;
 
 #[no_mangle]
 pub static ta_props: [optee_utee_sys::user_ta_property; 9] = [

examples/authentication-rs/ta/src/main.rs

@@ -17,7 +17,6 @@
 
 #![no_std]
 #![no_main]
-#![feature(c_size_t)]
 
 extern crate alloc;
 

examples/authentication-rs/ta/ta_static.rs

@@ -15,7 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 
-use core::ffi::*;
+use core::ffi::{c_int, c_void};
 use core::mem;
 use core::primitive::u64;
 
@@ -39,13 +39,13 @@ pub static ta_head: optee_utee_sys::ta_head = optee_utee_sys::ta_head {
 pub static ta_heap: [u8; TA_DATA_SIZE as usize] = [0; TA_DATA_SIZE as usize];
 
 #[no_mangle]
-pub static ta_heap_size: c_size_t = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
+pub static ta_heap_size: usize = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
 static FLAG_BOOL: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_SINGLE_INSTANCE) != 0;
 static FLAG_MULTI: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_MULTI_SESSION) != 0;
 static FLAG_INSTANCE: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_INSTANCE_KEEP_ALIVE) != 0;
 
 #[no_mangle]
-pub static ta_num_props: c_size_t = 9;
+pub static ta_num_props: usize = 9;
 
 #[no_mangle]
 pub static ta_props: [optee_utee_sys::user_ta_property; 9] = [

examples/big_int-rs/ta/src/main.rs

@@ -17,7 +17,6 @@
 
 #![no_std]
 #![no_main]
-#![feature(c_size_t)]
 
 use optee_utee::BigInt;
 use optee_utee::{

examples/big_int-rs/ta/ta_static.rs

@@ -15,7 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 
-use core::ffi::*;
+use core::ffi::{c_int, c_void};
 use core::mem;
 use core::primitive::u64;
 
@@ -39,13 +39,13 @@ pub static ta_head: optee_utee_sys::ta_head = optee_utee_sys::ta_head {
 pub static ta_heap: [u8; TA_DATA_SIZE as usize] = [0; TA_DATA_SIZE as usize];
 
 #[no_mangle]
-pub static ta_heap_size: c_size_t = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
+pub static ta_heap_size: usize = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
 static FLAG_BOOL: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_SINGLE_INSTANCE) != 0;
 static FLAG_MULTI: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_MULTI_SESSION) != 0;
 static FLAG_INSTANCE: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_INSTANCE_KEEP_ALIVE) != 0;
 
 #[no_mangle]
-pub static ta_num_props: c_size_t = 9;
+pub static ta_num_props: usize = 9;
 
 #[no_mangle]
 pub static ta_props: [optee_utee_sys::user_ta_property; 9] = [

examples/diffie_hellman-rs/ta/src/main.rs

@@ -17,7 +17,6 @@
 
 #![no_std]
 #![no_main]
-#![feature(c_size_t)]
 
 extern crate alloc;
 

examples/diffie_hellman-rs/ta/ta_static.rs

@@ -15,7 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 
-use core::ffi::*;
+use core::ffi::{c_int, c_void};
 use core::mem;
 use core::primitive::u64;
 
@@ -39,13 +39,13 @@ pub static ta_head: optee_utee_sys::ta_head = optee_utee_sys::ta_head {
 pub static ta_heap: [u8; TA_DATA_SIZE as usize] = [0; TA_DATA_SIZE as usize];
 
 #[no_mangle]
-pub static ta_heap_size: c_size_t = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
+pub static ta_heap_size: usize = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
 static FLAG_BOOL: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_SINGLE_INSTANCE) != 0;
 static FLAG_MULTI: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_MULTI_SESSION) != 0;
 static FLAG_INSTANCE: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_INSTANCE_KEEP_ALIVE) != 0;
 
 #[no_mangle]
-pub static ta_num_props: c_size_t = 9;
+pub static ta_num_props: usize = 9;
 
 #[no_mangle]
 pub static ta_props: [optee_utee_sys::user_ta_property; 9] = [

examples/digest-rs/ta/src/main.rs

@@ -17,7 +17,6 @@
 
 #![no_std]
 #![no_main]
-#![feature(c_size_t)]
 
 extern crate alloc;
 

examples/digest-rs/ta/ta_static.rs

@@ -15,7 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 
-use core::ffi::*;
+use core::ffi::{c_int, c_void};
 use core::mem;
 use core::primitive::u64;
 
@@ -39,13 +39,13 @@ pub static ta_head: optee_utee_sys::ta_head = optee_utee_sys::ta_head {
 pub static ta_heap: [u8; TA_DATA_SIZE as usize] = [0; TA_DATA_SIZE as usize];
 
 #[no_mangle]
-pub static ta_heap_size: c_size_t = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
+pub static ta_heap_size: usize = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
 static FLAG_BOOL: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_SINGLE_INSTANCE) != 0;
 static FLAG_MULTI: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_MULTI_SESSION) != 0;
 static FLAG_INSTANCE: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_INSTANCE_KEEP_ALIVE) != 0;
 
 #[no_mangle]
-pub static ta_num_props: c_size_t = 9;
+pub static ta_num_props: usize = 9;
 
 #[no_mangle]
 pub static ta_props: [optee_utee_sys::user_ta_property; 9] = [

examples/error_handling-rs/ta/src/main.rs

@@ -17,7 +17,6 @@
 
 #![no_std]
 #![no_main]
-#![feature(c_size_t)]
 
 extern crate alloc;
 

examples/error_handling-rs/ta/ta_static.rs

@@ -15,7 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 
-use core::ffi::*;
+use core::ffi::{c_int, c_void};
 use core::mem;
 use core::primitive::u64;
 
@@ -39,13 +39,13 @@ pub static ta_head: optee_utee_sys::ta_head = optee_utee_sys::ta_head {
 pub static ta_heap: [u8; TA_DATA_SIZE as usize] = [0; TA_DATA_SIZE as usize];
 
 #[no_mangle]
-pub static ta_heap_size: c_size_t = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
+pub static ta_heap_size: usize = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
 static FLAG_BOOL: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_SINGLE_INSTANCE) != 0;
 static FLAG_MULTI: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_MULTI_SESSION) != 0;
 static FLAG_INSTANCE: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_INSTANCE_KEEP_ALIVE) != 0;
 
 #[no_mangle]
-pub static ta_num_props: c_size_t = 9;
+pub static ta_num_props: usize = 9;
 
 #[no_mangle]
 pub static ta_props: [optee_utee_sys::user_ta_property; 9] = [

examples/hello_world-rs/ta/src/main.rs

@@ -17,7 +17,6 @@
 
 #![no_std]
 #![no_main]
-#![feature(c_size_t)]
 
 use optee_utee::{
     ta_close_session, ta_create, ta_destroy, ta_invoke_command, ta_open_session, trace_println,

examples/hello_world-rs/ta/ta_static.rs

@@ -15,7 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 
-use core::ffi::*;
+use core::ffi::{c_int, c_void};
 use core::mem;
 use core::primitive::u64;
 
@@ -39,13 +39,13 @@ pub static ta_head: optee_utee_sys::ta_head = optee_utee_sys::ta_head {
 pub static ta_heap: [u8; TA_DATA_SIZE as usize] = [0; TA_DATA_SIZE as usize];
 
 #[no_mangle]
-pub static ta_heap_size: c_size_t = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
+pub static ta_heap_size: usize = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
 static FLAG_BOOL: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_SINGLE_INSTANCE) != 0;
 static FLAG_MULTI: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_MULTI_SESSION) != 0;
 static FLAG_INSTANCE: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_INSTANCE_KEEP_ALIVE) != 0;
 
 #[no_mangle]
-pub static ta_num_props: c_size_t = 9;
+pub static ta_num_props: usize = 9;
 
 #[no_mangle]
 pub static ta_props: [optee_utee_sys::user_ta_property; 9] = [

examples/hotp-rs/ta/src/main.rs

@@ -17,7 +17,6 @@
 
 #![no_std]
 #![no_main]
-#![feature(c_size_t)]
 
 extern crate alloc;
 

examples/hotp-rs/ta/ta_static.rs

@@ -15,7 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 
-use core::ffi::*;
+use core::ffi::{c_int, c_void};
 use core::mem;
 use core::primitive::u64;
 
@@ -39,13 +39,13 @@ pub static ta_head: optee_utee_sys::ta_head = optee_utee_sys::ta_head {
 pub static ta_heap: [u8; TA_DATA_SIZE as usize] = [0; TA_DATA_SIZE as usize];
 
 #[no_mangle]
-pub static ta_heap_size: c_size_t = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
+pub static ta_heap_size: usize = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
 static FLAG_BOOL: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_SINGLE_INSTANCE) != 0;
 static FLAG_MULTI: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_MULTI_SESSION) != 0;
 static FLAG_INSTANCE: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_INSTANCE_KEEP_ALIVE) != 0;
 
 #[no_mangle]
-pub static ta_num_props: c_size_t = 9;
+pub static ta_num_props: usize = 9;
 
 #[no_mangle]
 pub static ta_props: [optee_utee_sys::user_ta_property; 9] = [

examples/message_passing_interface-rs/ta/src/main.rs

@@ -16,7 +16,6 @@
 // under the License.
 
 #![no_main]
-#![feature(c_size_t)]
 
 use optee_utee::{
     ta_close_session, ta_create, ta_destroy, ta_invoke_command, ta_open_session, trace_println,

examples/message_passing_interface-rs/ta/ta_static.rs

@@ -15,7 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 
-use core::ffi::*;
+use core::ffi::{c_int, c_void};
 use core::mem;
 use core::primitive::u64;
 
@@ -39,13 +39,13 @@ pub static ta_head: optee_utee_sys::ta_head = optee_utee_sys::ta_head {
 pub static ta_heap: [u8; TA_DATA_SIZE as usize] = [0; TA_DATA_SIZE as usize];
 
 #[no_mangle]
-pub static ta_heap_size: c_size_t = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
+pub static ta_heap_size: usize = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
 static FLAG_BOOL: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_SINGLE_INSTANCE) != 0;
 static FLAG_MULTI: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_MULTI_SESSION) != 0;
 static FLAG_INSTANCE: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_INSTANCE_KEEP_ALIVE) != 0;
 
 #[no_mangle]
-pub static ta_num_props: c_size_t = 9;
+pub static ta_num_props: usize = 9;
 
 #[no_mangle]
 pub static ta_props: [optee_utee_sys::user_ta_property; 9] = [

examples/random-rs/ta/src/main.rs

@@ -17,7 +17,6 @@
 
 #![no_std]
 #![no_main]
-#![feature(c_size_t)]
 
 extern crate alloc;
 

examples/random-rs/ta/ta_static.rs

@@ -15,7 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 
-use core::ffi::*;
+use core::ffi::{c_int, c_void};
 use core::mem;
 use core::primitive::u64;
 
@@ -39,13 +39,13 @@ pub static ta_head: optee_utee_sys::ta_head = optee_utee_sys::ta_head {
 pub static ta_heap: [u8; TA_DATA_SIZE as usize] = [0; TA_DATA_SIZE as usize];
 
 #[no_mangle]
-pub static ta_heap_size: c_size_t = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
+pub static ta_heap_size: usize = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
 static FLAG_BOOL: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_SINGLE_INSTANCE) != 0;
 static FLAG_MULTI: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_MULTI_SESSION) != 0;
 static FLAG_INSTANCE: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_INSTANCE_KEEP_ALIVE) != 0;
 
 #[no_mangle]
-pub static ta_num_props: c_size_t = 9;
+pub static ta_num_props: usize = 9;
 
 #[no_mangle]
 pub static ta_props: [optee_utee_sys::user_ta_property; 9] = [

examples/secure_storage-rs/ta/src/main.rs

@@ -17,7 +17,6 @@
 
 #![no_std]
 #![no_main]
-#![feature(c_size_t)]
 
 extern crate alloc;
 

examples/secure_storage-rs/ta/ta_static.rs

@@ -15,7 +15,7 @@
 // specific language governing permissions and limitations
 // under the License.
 
-use core::ffi::*;
+use core::ffi::{c_int, c_void};
 use core::mem;
 use core::primitive::u64;
 
@@ -39,13 +39,13 @@ pub static ta_head: optee_utee_sys::ta_head = optee_utee_sys::ta_head {
 pub static ta_heap: [u8; TA_DATA_SIZE as usize] = [0; TA_DATA_SIZE as usize];
 
 #[no_mangle]
-pub static ta_heap_size: c_size_t = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
+pub static ta_heap_size: usize = mem::size_of::<u8>() * TA_DATA_SIZE as usize;
 static FLAG_BOOL: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_SINGLE_INSTANCE) != 0;
 static FLAG_MULTI: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_MULTI_SESSION) != 0;
 static FLAG_INSTANCE: bool = (TA_FLAGS & optee_utee_sys::TA_FLAG_INSTANCE_KEEP_ALIVE) != 0;
 
 #[no_mangle]
-pub static ta_num_props: c_size_t = 9;
+pub static ta_num_props: usize = 9;
 
 #[no_mangle]
 pub static ta_props: [optee_utee_sys::user_ta_property; 9] = [