diff -r 000000000000 -r 6474c204b198 build/autoconf/frameptr.m4
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/build/autoconf/frameptr.m4	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,40 @@
+dnl This Source Code Form is subject to the terms of the Mozilla Public
+dnl License, v. 2.0. If a copy of the MPL was not distributed with this
+dnl file, You can obtain one at http://mozilla.org/MPL/2.0/.
+
+dnl Set MOZ_FRAMEPTR_FLAGS to the flags that should be used for enabling or
+dnl disabling frame pointers in this architecture based on the configure
+dnl options
+
+AC_DEFUN([MOZ_SET_FRAMEPTR_FLAGS], [
+  case "$target" in
+  *android*)
+    unwind_tables="-funwind-tables"
+    ;;
+  esac
+  if test "$GNU_CC"; then
+    MOZ_ENABLE_FRAME_PTR="-fno-omit-frame-pointer $unwind_tables"
+    MOZ_DISABLE_FRAME_PTR="-fomit-frame-pointer"
+    if test "$CPU_ARCH" = arm; then
+      # http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54398
+      MOZ_ENABLE_FRAME_PTR="$unwind_tables"
+    fi
+  else
+    case "$target" in
+    *-mingw*)
+      MOZ_ENABLE_FRAME_PTR="-Oy-"
+      MOZ_DISABLE_FRAME_PTR="-Oy"
+    ;;
+    esac
+  fi
+
+  # if we are debugging, profiling or using ASAN, we want a frame pointer.
+  if test -z "$MOZ_OPTIMIZE" -o \
+          -n "$MOZ_PROFILING" -o \
+          -n "$MOZ_DEBUG" -o \
+          -n "$MOZ_ASAN"; then
+    MOZ_FRAMEPTR_FLAGS="$MOZ_ENABLE_FRAME_PTR"
+  else
+    MOZ_FRAMEPTR_FLAGS="$MOZ_DISABLE_FRAME_PTR"
+  fi
+])