蛋疼小说网乡野春床:DirectFB porting to uCLinux/EM8620L platform(转)
来源:百度文库 编辑:九乡新闻网 时间:2024/10/06 18:21:38
1.1 Development Environment
1.1.1 EM8620L target platform environment
Item Element Resources Hardware EM8620L http://www.sigmadesigns.com Software kernel = uCLinux-2.4.22 ToolChains DirectFB = DirectFB-0.9.22 freetype = freetype-2.1.3 libjpeg = jpeg-6b ftp://ftp.uu.net/graphics/jpeg/jpegsrc.v6b.tar.gz libpng = png-1.2.2 zlib = zlib-1.1.4 http://www.zlib.net/zlib-1.1.4.tar.gz1.1.2 x86 host machine environment
Item Element Resources OS Linux ( Redhat FC3 ) http://ftp.redhat.com/pub/redhat/linux/ host compiler gcc 3.3.4 http://www.gnu.org/software/gcc/ cross compiler arm-elf-gcc1.2 Install DirectFB
1.2.1 Prepare libraries used in DirectFB
- Extract each source code
- Make a directory to hold all libs and includes
# mkdir DFB
# cd DFB
# mkdir lib
# mkdir include
- create libjpeg
# cd jpeg-6b
# CC=arm-elf-gcc CXX=arm-elf-g++ AR=arm-elf-ar \
RANLIB=arm-elf-ranlib LD=arm-elf-ld ./configure \
--target arm-elf-linux --host x86-pc-linux \
--disable-shared --enable-static
Edit Makefile
Change Line 39 from
LIBTOOL = ./libtool to LIBTOOL = libtool
Replace all "--mode" with "--tag" in Makefile
# make libjpeg.a
# cp libjpeg.a ../DFB/lib/
# cp jpeglib.h ../DFB/include/
- create zlib
# CC=arm-elf-gcc CXX=arm-elf-g++ AR=arm-elf-ar \
RANLIB=arm-elf-ranlib LD=arm-elf-ld ./configure
modify Makefile for cross compile
line 30 : AR=arm-elf-ar to AR=arm-elf-ar cr
# make
# cp libjz.a ../DFB/lib/
# cp ../zlib-1.1.4/zconf.h ../DFB/include/
# cp zlib.h ../DFB/include/
- create libpng
# cp scripts/makefile.linux Makefile
modify Makefile for cross compile
line 11 : change "gcc" to "arm-elf-gcc"
line 39 : change "ranlib" to "arm-elf-ranlib"
line 59 : change "ar" to "arm-elf-ar"
line 20&21
ZLIBLIB=../DFB/lib
ZLIBINC=../DFB/include
# make libpng.a
# cp libpng.a ../DFB/lib/
# cp png.h ../DFB/include/
- create freetype
# CC=arm-elf-gcc CXX=arm-elf-g++ AR=arm-elf-ar \
RANLIB=arm-elf-ranlib LD=arm-elf-ld \
./configure
# make
# cp objs/.libs/libfreetype.a ../DFB/lib/
# cp -r include/* ../DFB/include
- Cross Compile DirectFB for uCLinux
# CFLAGS=-I/home/RMT/Project/Develop/DFB/include \
LDFLAGS=-L/home/RMT/Project/Develop/DFB/lib \
CC=arm-elf-gcc CXX=arm-elf-g++ AR=arm-elf-ar \
RANLIB=arm-elf-ranlib LD=arm-elf-ld \
./configure --target arm-elf-linux --host x86-pc-linux \
--disable-shared --enable-static --disable-sdl \
--with-gfxdrivers=none --with-inputdrivers=none \
--prefix=/home/RMT/Project/DFB
# LD=arm-elf-ld make
# make install
# export PKG_CONFIG_PATH=(your pkgconfig):$PKG_CONFIG_PATH
Now all DFB libs and includes are in /home/RMT/Project/DFB
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