name the arc4random structure mappings
Change-Id: I6e150e526f6ceee31aa9bd219fa45317d5a729cb
diff --git a/libc/upstream-openbsd/android/include/arc4random.h b/libc/upstream-openbsd/android/include/arc4random.h
index c07257d..96d9c9a 100644
--- a/libc/upstream-openbsd/android/include/arc4random.h
+++ b/libc/upstream-openbsd/android/include/arc4random.h
@@ -27,6 +27,8 @@
#include <pthread.h>
#include <signal.h>
+#include "private/bionic_prctl.h"
+
// Android gets these from "thread_private.h".
#include "thread_private.h"
//static pthread_mutex_t arc4random_mtx = PTHREAD_MUTEX_INITIALIZER;
@@ -76,12 +78,18 @@
MAP_ANON|MAP_PRIVATE, -1, 0)) == MAP_FAILED)
return (-1);
+ prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, *rsp, sizeof(**rsp),
+ "arc4random _rs structure");
+
if ((*rsxp = mmap(NULL, sizeof(**rsxp), PROT_READ|PROT_WRITE,
MAP_ANON|MAP_PRIVATE, -1, 0)) == MAP_FAILED) {
munmap(*rsxp, sizeof(**rsxp));
return (-1);
}
+ prctl(PR_SET_VMA, PR_SET_VMA_ANON_NAME, *rsxp, sizeof(**rsxp),
+ "arc4random _rsx structure");
+
_ARC4_ATFORK(_rs_forkhandler);
return (0);
}