Fix possible leak in pthread_detach.
If pthread_detach() is called while the thread is in pthread_exit(),
it takes the risk that no one can free the pthread_internal_t.
So I add PTHREAD_ATTR_FLAG_ZOMBIE to detect this, maybe very rare, but
both glibc and netbsd libpthread have similar function.
Change-Id: Iaa15f651903b8ca07aaa7bd4de46ff14a2f93835
diff --git a/libc/bionic/pthread_internal.h b/libc/bionic/pthread_internal.h
index 80002e9..8fbaf22 100644
--- a/libc/bionic/pthread_internal.h
+++ b/libc/bionic/pthread_internal.h
@@ -38,6 +38,9 @@
/* Has the thread been joined by another thread? */
#define PTHREAD_ATTR_FLAG_JOINED 0x00000002
+/* Did the thread exit without freeing pthread_internal_t? */
+#define PTHREAD_ATTR_FLAG_ZOMBIE 0x00000004
+
/* Is this the main thread? */
#define PTHREAD_ATTR_FLAG_MAIN_THREAD 0x80000000