Adding upstream version 1.64.0+dfsg1.upstream/1.64.0+dfsg1

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 13 insertions, 0 deletions

diff --git a/library/std/src/sys/sgx/abi/thread.rs b/library/std/src/sys/sgx/abi/thread.rs
new file mode 100644
index 000000000..ef55b821a
--- /dev/null
+++ b/library/std/src/sys/sgx/abi/thread.rs
@@ -0,0 +1,13 @@
+use fortanix_sgx_abi::Tcs;
+
+/// Gets the ID for the current thread. The ID is guaranteed to be unique among
+/// all currently running threads in the enclave, and it is guaranteed to be
+/// constant for the lifetime of the thread. More specifically for SGX, there
+/// is a one-to-one correspondence of the ID to the address of the TCS.
+#[unstable(feature = "sgx_platform", issue = "56975")]
+pub fn current() -> Tcs {
+    extern "C" {
+        fn get_tcs_addr() -> Tcs;
+    }
+    unsafe { get_tcs_addr() }
+}