Merge "Add PTRACE_PEEKTAG to mte_kernel.h."
diff --git a/libc/Android.bp b/libc/Android.bp
index 987446d..6e5db65 100644
--- a/libc/Android.bp
+++ b/libc/Android.bp
@@ -1757,6 +1757,7 @@
         "//external/perfetto:__subpackages__",
         "//external/scudo:__subpackages__",
         "//system/core/debuggerd:__subpackages__",
+        "//system/core/libunwindstack:__subpackages__",
         "//system/memory/libmemunreachable:__subpackages__",
     ],
     host_supported: true,
diff --git a/libc/platform/bionic/mte_kernel.h b/libc/platform/bionic/mte_kernel.h
index 984d17d..d22d65e 100644
--- a/libc/platform/bionic/mte_kernel.h
+++ b/libc/platform/bionic/mte_kernel.h
@@ -51,4 +51,6 @@
 #define SEGV_MTEAERR 8
 #define SEGV_MTESERR 9
 
+#define PTRACE_PEEKTAG 33
+
 #endif