Apply rustc-0023-Add-Trusty-OS-support-to-Rust-std.patch

2 files changed, 10 insertions, 0 deletions

diff --git a/library/std/src/sys/random/mod.rs b/library/std/src/sys/random/mod.rs
index f42351deb92..870039602bc 100644
--- a/library/std/src/sys/random/mod.rs
+++ b/library/std/src/sys/random/mod.rs
@@ -60,6 +60,9 @@ cfg_if::cfg_if! {
     } else if #[cfg(target_os = "teeos")] {
         mod teeos;
         pub use teeos::fill_bytes;
+    } else if #[cfg(target_os = "trusty")] {
+        mod trusty;
+        pub use trusty::fill_bytes;
     } else if #[cfg(target_os = "uefi")] {
         mod uefi;
         pub use uefi::fill_bytes;
diff --git a/library/std/src/sys/random/trusty.rs b/library/std/src/sys/random/trusty.rs
new file mode 100644
index 00000000000..da6ca3eea24
--- /dev/null
+++ b/library/std/src/sys/random/trusty.rs
@@ -0,0 +1,7 @@
+extern "C" {
+    fn trusty_rng_secure_rand(randomBuffer: *mut core::ffi::c_void, randomBufferLen: libc::size_t);
+}
+
+pub fn fill_bytes(bytes: &mut [u8]) {
+    unsafe { trusty_rng_secure_rand(bytes.as_mut_ptr().cast(), bytes.len()) }
+}