Clean up our alternate signal stacks.
Bug: 8557703
Change-Id: Ie93901dd1c29e9d3bf795b0f0400616d9ef08f75
diff --git a/libc/bionic/pthread_internal.h b/libc/bionic/pthread_internal.h
index e34788b..98199d3 100644
--- a/libc/bionic/pthread_internal.h
+++ b/libc/bionic/pthread_internal.h
@@ -47,6 +47,8 @@
__pthread_cleanup_t* cleanup_stack;
void** tls; /* thread-local storage area */
+ void* alternate_signal_stack;
+
/*
* The dynamic linker implements dlerror(3), which makes it hard for us to implement this
* per-thread buffer by simply using malloc(3) and free(3).