directfb + gtk 移植到arm平台

allenflydown

最近在搭建dfb+gtk for arm

参考网路上各路高手的一些经验，基本上把所需要的库都交叉编译了，到最后交叉编译gtk+时遇到问题了

编辑了个configure脚本：

PREFIX=/opt/armhome \
CC=/opt/crosstool/gcc-4.0.1-glibc-2.3.5/arm-unknown-linux-gnu/bin/arm-unknown-linux-gnu-gcc \
PKG_CONFIG=/usr/bin/pkg-config \
BASE_DEPENDENCIES_CFLAGS="-I$PREFIX/include -I$PREFIX/lib/glib-2.0/include -I$PREFIX/include/glib-2.0 \
  -I$PREFIX/include/pango-1.0 -I$PREFIX/include/cairo -I$PREFIX/include/atk-1.0" \
BASE_DEPENDENCIES_LIBS="-L$PREFIX/lib $PREFIX/lib/libglib-2.0.so $PREFIX/lib/libgobject-2.0.so \
  $PREFIX/lib/libgmodule-2.0.so $PREFIX/lib/libfontconfig.so $PREFIX/lib/libxml2.so" \
GLIB_CFLAGS="-I$PREFIX/include -I$PREFIX/lib/glib-2.0/include -I$PREFIX/include/glib-2.0" \
GLIB_LIBS="-L$PREFIX/lib $PREFIX/lib/libglib-2.0.so $PREFIX/lib/libgobject-2.0.so \
  $PREFIX/lib/libgmodule-2.0.so $PREFIX/lib/libfontconfig.so $PREFIX/lib/libxml2.so" \
PANGO_CFLAGS="-I$PREFIX/include/pango-1.0" \
PANGO_LIBS="-L$PREFIX/lib $PREFIX/lib/libpango-1.0.so $PREFIX/lib/libpangoft2-1.0.so \
  $PREFIX/lib/libpangocairo-1.0.so" \
GDK_DEP_CFLAGS="-pthread -I$PREFIX/include/glib-2.0 -I$PREFIX/lib/glib-2.0/include \
  -I$PREFIX/include/pango-1.0 -I$PREFIX/include/cairo -I$PREFIX/include -D_REENTRANT -D_GNU_SOURCE \
  -I$PREFIX/include -I$PREFIX/include/directfb" \
GDK_DEP_LIBS="-L$PREFIX/lib -ldirectfb -lfusion -ldirect -lpthread -ldl -lpng12 -lpangocairo-1.0 \
  -lpango-1.0 -lcairo -lgobject-2.0 -lgmodule-2.0 -lglib-2.0 -ljpeg -lm" \
GDK_PIXBUF_DEP_CFLAGS="-pthread -I$PREFIX/include/glib-2.0 -I$PREFIX/lib/glib-2.0/include \
  -I$PREFIX/include -I$PREFIX/include" \
GDK_PIXBUF_DEP_LIBS="-L$PREFIX/lib -lgmodule-2.0 -ldl -lgobject-2.0 -lglib-2.0 -lpng12 -ljpeg -lm" \
GTK_DEP_CFLAGS="-pthread -I$PREFIX/include/glib-2.0 -I$PREFIX/lib/glib-2.0/include \
  -I$PREFIX/include/pango-1.0 -I$PREFIX/include/cairo -I$PREFIX/include -D_REENTRANT -D_GNU_SOURCE \
  -I$PREFIX/include/directfb -I$PREFIX/include/atk-1.0 -I$PREFIX/include" \
GTK_DEP_LIBS="-L$PREFIX/lib -lpng12 -lpangocairo-1.0 -lpango-1.0 -latk-1.0 -lgobject-2.0 -lgmodule-2.0 \
  -ldl -lglib-2.0 -lcairo -ljpeg -lm" \
GDK_EXTRA_CFLAGS="-I$PREFIX/include" \
GDK_EXTRA_LIBS="-L$PREFIX/lib -ldirectfb -lz -lfusion -ldirect -lpthread -ldl" \
./configure \
--host=arm-linux \
--prefix=$PREFIX \
--with-gdktarget=directfb \
--without-libtiff \
--disable-glibtest \
--disable-largefile \
--disable-modules \
--with-included-loaders=jpeg,gif,png,xpm

运行报错

checking for DirectFB... configure: error:
*** DirectFB 0.9.24 or newer and the cairo backend
*** are required. The latest version of DirectFB is always available
*** from http://www.directfb.org/.

于是检查config.log
发现问题 configure:33857: error:
回头看configure文件，导致出错的原因在于这一行

  if $PKG_CONFIG --atleast-version $DIRECTFB_REQUIRED_VERSION directfb && $PKG_CONFIG --exists cairo-directfb ; then
....

在终端检测了一下，directfb.pc 是没有问题的，返回成功，但是 cairo-direcfb.pc 就检测失败了

打印错误信息：
root@ubuntu:/home//gtk+-2.10.14# pkg-config --exists cairo-directfb --print-errors
Package /opt/armhome/lib/pkgconfig was not found in the pkg-config search path.
Perhaps you should add the directory containing `/opt/armhome/lib/pkgconfig.pc'
to the PKG_CONFIG_PATH environment variable
Package '/opt/armhome/lib/pkgconfig', required by 'cairo', not found


于是看了下cairo-direcfb.pc 和 cairo.pc这两个文件

发现cairo-directfb 需要cairo

而cairo.pc中出现了很奇怪的一个依赖


prefix=/opt/armhome
exec_prefix=${prefix}
libdir=${exec_prefix}/lib
includedir=${prefix}/include

Name: cairo
Description: Multi-platform 2D graphics library
Version: 1.4.10

Requires.private: freetype2 >= 8.0.2 fontconfig directfb /opt/armhome/lib/pkgconfig
Libs: -L${libdir} -lcairo
Libs.private: -lz -lm
Cflags: -I${includedir}/cairo


问题就处在这里了，需要/opt/armhome/lib/pkgconfig.pc文件，我也不知道这个东西是什么，卡在这里了，把这个依赖直接去掉的话，会出现

/opt/crosstool/gcc-4.0.1-glibc-2.3.5/arm-unknown-linux-gnu/lib/gcc/arm-unknown-linux-gnu/4.0.1/../../../../arm-unknown-linux-gnu/bin/ld: warning: libpangoft2-1.0.so.0, needed by /opt/armhome/lib/libpangocairo-1.0.so, not found (try using -rpath or -rpath-link)
/opt/crosstool/gcc-4.0.1-glibc-2.3.5/arm-unknown-linux-gnu/lib/gcc/arm-unknown-linux-gnu/4.0.1/../../../../arm-unknown-linux-gnu/bin/ld: warning: libfreetype.so.6, needed by /opt/armhome/lib/libpangocairo-1.0.so, not found (try using -rpath or -rpath-link)
/opt/crosstool/gcc-4.0.1-glibc-2.3.5/arm-unknown-linux-gnu/lib/gcc/arm-unknown-linux-gnu/4.0.1/../../../../arm-unknown-linux-gnu/bin/ld: warning: libz.so.1, needed by /opt/armhome/lib/libcairo.so, not found (try using -rpath or -rpath-link)
/opt/armhome/lib/libcairo.so: undefined reference to `FcPatternAddInteger'
/opt/armhome/lib/libcairo.so: undefined reference to `deflate'
/opt/armhome/lib/libcairo.so: undefined reference to `FT_Get_PS_Font_Info'

看来还是cairo库有问题，但是真的找不到问题出在那里啊！求助大侠帮忙分析

T-Bagwell

看来是没有找到FreeType和FontConfig

snail_314

不是说缺少pkgconfig.pc
pkgconfig是目录，如果是desktop的话一般在/usr/lib/pkgconfig目录下，下面是各种软件包的.pc文件。你应该是freetype2.pc，fontconfig.pc等有问题

allenflydown

我现在觉得以前编译的库有问题，又得从头来了，有一个疑问
从glib开始
在编译这个库之前，我设置了环境变量
export PREFIX=/opt/armhome
export LD_LIBRARY_PATH=$PREFIX/lib
export PKG_CONFIG_PATH=$LD_LIBRARY_PATH/pkgconfig
export COMPILER=arm-linux-gcc
export HOST=arm-linux


建立文件 arm-linux.cache
配置内容如下：
glib_cv_stack_grows=no
glib_cv_uscore=no
ac_cv_func_posix_getpwuid_r=no
ac_cv_func_posix_getgrgid_r=no

CC=$COMPILER ./configure --host=arm-linux --prefix=/opt/armhome --cache-file=arm-linux.cache



报错如下：
/usr/bin/pkg-config: error while loading shared libraries: /opt/armhome/lib/libglib-2.0.so.0: ELF file OS ABI invalid
configure: error: *** pkg-config too old; version 0.16 or better required.

实际上系统上的pkg-config版本是0.22的
如果我unset  LD_LIBRARY_PATH
就可以编译通过
我觉得是不是一开始就错了呢，pkg-config需要交叉编译成arm版本的呢， 还是用系统安装的呢？

T-Bagwell

交叉

allenflydown

好像看过一个帖子，说是pkg-config不可以交叉编译到arm上哦，呵呵

T-Bagwell

谁说的？

allenflydown

忘记谁说的了

T-Bagwell

那就等于没有
嵌入式和pc没有什么区别的
尤其是应用程序

allenflydown

自己编译了下pkg-config,是i386的，不是arm的，指定PKG_CONFIG ,交叉编译好象没什么影响啊