Revert "Attempt to use arc4random where getauxval(AT_RANDOM) is used."
This reverts commit 78a52f19bb207d1c736f1d5362e01f338d78645f.
Change-Id: Ia72501ad0b81e894d67e5ce59b597397c11acfa5
diff --git a/libc/bionic/setjmp_cookie.cpp b/libc/bionic/setjmp_cookie.cpp
index 4fa68c2..3be675a 100644
--- a/libc/bionic/setjmp_cookie.cpp
+++ b/libc/bionic/setjmp_cookie.cpp
@@ -34,14 +34,14 @@
#include <sys/auxv.h>
#include <sys/cdefs.h>
-#include "private/bionic_arc4random.h"
#include "private/bionic_globals.h"
#include "private/libc_logging.h"
#include "private/KernelArgumentBlock.h"
-void __libc_init_setjmp_cookie(libc_globals* globals, KernelArgumentBlock& args) {
- long value;
- __libc_safe_arc4random_buf(&value, sizeof(value), args);
+void __libc_init_setjmp_cookie(libc_globals* globals,
+ KernelArgumentBlock& args) {
+ char* random_data = reinterpret_cast<char*>(args.getauxval(AT_RANDOM));
+ long value = *reinterpret_cast<long*>(random_data + 8);
// Mask off the last bit to store the signal flag.
globals->setjmp_cookie = value & ~1;