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-rw-r--r--src/libstd/sys/sgx/rwlock.rs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/libstd/sys/sgx/rwlock.rs b/src/libstd/sys/sgx/rwlock.rs
index 33163a556c1..4dfbe86d14f 100644
--- a/src/libstd/sys/sgx/rwlock.rs
+++ b/src/libstd/sys/sgx/rwlock.rs
@@ -204,6 +204,7 @@ pub unsafe extern "C" fn __rust_print_err(m: *mut u8, s: i32) {
 }
 
 #[no_mangle]
+// NB. used by both libunwind and libpanic_abort
 pub unsafe extern "C" fn __rust_abort() {
     ::sys::abort_internal();
 }