Andes Workshop

In the makefile, I modified some of them so that you could just change the value of VH to support virtual hosting. The key ideas are
1) Add -mvh to LDFLAGS
2) Comment/Remove the code for do_printf.c annd printf.c
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In the makefile, at around line 8, add
# VH --> virtual hosting feature, could be 0 or 1
VH := 0
----------------------------
At LD_FLAGS line, the name may be LD_FLAGS or LDFLAGS
ifeq ($(VH),1)
LD_FLAGS := $(OPTIM) -fno-builtin -nostartfiles -mvh -static $(CMODEL)
else
LD_FLAGS := $(OPTIM) -fno-builtin -nostartfiles -static $(CMODEL)
endif
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take do_printf.c and printf.c off LIBC_SRC. Add another PRINTF_SRC below LIBC_SRC
ifneq ($(VH),1)
PRINTF_SRC := \
$(LIBC_PATH)/stdio/do_printf.c \
$(LIBC_PATH)/stdio/printf.c
endif
----------------
Add PRINTF_SRC to SRCS:=
SRCS := \
${NDS32_SRC} \
${RTOS_SRC} \
${LIBC_SRC} \
${${APP}_DRIVER_SRC} \
${${APP}_LIB_SRC} \
$(PRINTF_SRC)