Keep frame pointers if using gcc frame intrinsics.
Specify -fno-omit-frame-pointer when using __builtin_frame_address() and
__builtin_return_address() for backtracing. This fixes backtracing
failures on e.g. i686 for optimized builds.
diff --git a/configure.ac b/configure.ac
index d5c663e..3521a70 100644
--- a/configure.ac
+++ b/configure.ac
@@ -784,6 +784,7 @@
)
if test "x$backtrace_method" = "x" -a "x$enable_prof_gcc" = "x1" \
-a "x$GCC" = "xyes" ; then
+ JE_CFLAGS_APPEND([-fno-omit-frame-pointer])
backtrace_method="gcc intrinsics"
AC_DEFINE([JEMALLOC_PROF_GCC], [ ])
else