Merge changes I8b25accf,I59013f0c,I6c881e5d,I66826f31,I552692ae, ...

* changes:
  fdtrack: add wrapper for socketpair.
  fdtrack: add wrapper for eventfd.
  fdtrack: add wrappers for epoll_create, epoll_create1.
  fdtrack: add wrappers for pipe, pipe2.
  fdtrack: add tests for individual wrappers.
  fdtrack: don't destroy traces.
diff --git a/METADATA b/METADATA
new file mode 100644
index 0000000..d97975c
--- /dev/null
+++ b/METADATA
@@ -0,0 +1,3 @@
+third_party {
+  license_type: NOTICE
+}
diff --git a/libc/platform/bionic/mte_kernel.h b/libc/platform/bionic/mte_kernel.h
index d22d65e..e8ef2a5 100644
--- a/libc/platform/bionic/mte_kernel.h
+++ b/libc/platform/bionic/mte_kernel.h
@@ -51,6 +51,7 @@
 #define SEGV_MTEAERR 8
 #define SEGV_MTESERR 9
 
-#define PTRACE_PEEKTAG 33
+#define PTRACE_PEEKMTETAGS 33
+#define PTRACE_POKEMTETAGS 34
 
 #endif