From 564f800e3e24647c095f7a321bf3ebdccfbf762d Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Sat, 2 Sep 2017 12:02:04 -0700
Subject: [PATCH] Disable libunwind on aarch64

Fixes hangs when using libtcmalloc.so

Upstream-Status: Pending
Signed-off-by: Khem Raj <raj.khem@gmail.com>

---
 configure.ac | 5 +++++
 1 file changed, 5 insertions(+)

--- a/configure.ac
+++ b/configure.ac
@@ -76,6 +76,11 @@ AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [re
                   [default_enable_libunwind=yes
                    default_tcmalloc_pagesize=8])
 
+# Disable libunwind linking on aarch64 by default.
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM(, [return __aarch64__])],
+                  [default_enable_libunwind=no],
+                  [default_enable_libunwind=yes])
+
 AC_ARG_ENABLE([cpu-profiler],
               [AS_HELP_STRING([--disable-cpu-profiler],
                               [do not build the cpu profiler])],