diff --git a/examples/Make.rules b/examples/Make.rules
index b02a62e..68f5574 100644
--- a/examples/Make.rules
+++ b/examples/Make.rules
@@ -17,10 +17,12 @@ RANLIB=$(GNU_BIN)/$(ARCH)-ranlib
 CFLAGS+=-ffreestanding 
 CFLAGS+=-fno-pic
 CFLAGS+=-march=rv32i -mabi=ilp32
+CFLAGS+= -O0 -g
 
 
 LDFLAGS+=-nostdlib
 LDFLAGS+=-Wl,-Ttext=0x80000000
+LDFLAGS+= -g
 
 # see: https://github.com/riscv/riscv-gcc/issues/120
 #LDFLAGS+=-Wl,--no-relax