1.首先，将要移植的代码目录（如bootpicsnd）整个拷贝到UBOOT工程中，最好放到对应的board目录下。
2.在bootpicsnd目录里，新建一个Makefile，参考如下：
#
# (C) Copyright 2000-2007
# Wolfgang Denk, DENX Software Engineering, wd@denx.de.
#
# See file CREDITS for list of people who contributed to this
# project.
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of
# the License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston,
# MA 02111-1307 USA
#
include $(TOPDIR)/config.mk
LIB := $(obj)libbootpicsnd.a
COBJS = cdjpeg.o jaricom.o jcomapi.o jdapimin.o jdapistd.o jdarith.o jdatasrc.o jdcoefct.o jdcolor.o jddctmgr.o jdhuff.o jdinput.o jdmainct.o jdmarker.o jdmaster.o jdmerge.o jdpostct.o jdsample.o jdtrans.o jerror.o jidctflt.o jidctfst.o jidctint.o jmemmgr.o jmemnobs.o jquant1.o jquant2.o jutils.o wrbmp.o jpeg.o I2CMaster.o cmd_I2C.o bootpic.o bootsnd.o
SRCS := $(COBJS:.o=.c)
OBJS := $(addprefix $(obj),$(COBJS))
all: $(LIB)
$(LIB): $(obj).depend $(OBJS)
$(AR) $(ARFLAGS) $@ $(OBJS)
#########################################################################
# defines $(obj).depend target
include $(SRCTREE)/rules.mk
sinclude $(obj).depend
#########################################################################
注意：特殊颜色部分为对应的C文件，和这些原文生成的.o要ar成的库libbootpicsnd.a
3.在顶层的Makefile里，填加如下一句，使生成的uboot elf文件中，包含进libbootpicsnd.a
LIBS += board/hs3000/bootpicsnd/libbootpicsnd.a
4.make hs3000_config;make
5.此时一般都会报头文件的问题，想办法解决之。
6.编译成功后，会在相应的目录下（bootpicsnd）生成bootpicsnd.a，在u-boot.map中，能看到bootpicsnd.a相关的内容。
7.ok。