Pass -fno-omit-frame-pointer in debug builds

This helps bpftrace generate stack traces.

Signed-off-by: Cole Miller <cole.miller@canonical.com>

Author: cole-miller

Makefile.am

@@ -244,7 +244,7 @@ benchmark_os_disk_write_LDFLAGS = -luring
 endif # BENCHMARK_ENABLED
 
 if DEBUG_ENABLED
-  AM_CFLAGS += -Werror -Wall
+  AM_CFLAGS += -Werror -Wall -fno-omit-frame-pointer
 else
   AM_CFLAGS += -DNDEBUG
 endif