diff --git a/libc/platform/bionic/mte.h b/libc/platform/bionic/mte.h
index 98b3d27..423ed0f 100644
--- a/libc/platform/bionic/mte.h
+++ b/libc/platform/bionic/mte.h
@@ -28,6 +28,7 @@
 
 #pragma once
 
+#include <stddef.h>
 #include <sys/auxv.h>
 #include <sys/mman.h>
 #include <sys/prctl.h>
@@ -49,6 +50,36 @@
   return supported;
 }
 
+inline void* get_tagged_address(const void* ptr) {
+#if defined(__aarch64__)
+  if (mte_supported()) {
+    __asm__ __volatile__(".arch_extension mte; ldg %0, [%0]" : "+r"(ptr));
+  }
+#endif  // aarch64
+  return const_cast<void*>(ptr);
+}
+
+// Inserts a random tag tag to `ptr`, using any of the set lower 16 bits in
+// `mask` to exclude the corresponding tag from being generated. Note: This does
+// not tag memory. This generates a pointer to be used with set_memory_tag.
+inline void* insert_random_tag(const void* ptr, __attribute__((unused)) uint64_t mask = 0) {
+#if defined(__aarch64__)
+  if (mte_supported() && ptr) {
+    __asm__ __volatile__(".arch_extension mte; irg %0, %0, %1" : "+r"(ptr) : "r"(mask));
+  }
+#endif  // aarch64
+  return const_cast<void*>(ptr);
+}
+
+// Stores the address tag in `ptr` to memory, at `ptr`.
+inline void set_memory_tag(__attribute__((unused)) void* ptr) {
+#if defined(__aarch64__)
+  if (mte_supported()) {
+    __asm__ __volatile__(".arch_extension mte; stg %0, [%0]" : "+r"(ptr));
+  }
+#endif  // aarch64
+}
+
 #ifdef __aarch64__
 class ScopedDisableMTE {
   size_t prev_tco_;