Question

我正在使用我的工具链为ARM编译gst-plugins-bad。我编译了构建它所需的一切，包括gstreamer，libmms等......并在我的sysroot中放置了与pkg-config相关的头文件，库和文件。

当我配置everyrhing似乎没问题，但尝试编译结果：

luca@luca-work-laptop:~/gstreamer/gst-plugins-bad-0.10.21$ make
make  all-recursive
make[1]: Entering directory `/home/luca/gstreamer/gst-plugins-bad-0.10.21'
Making all in gst-libs
make[2]: Entering directory `/home/luca/gstreamer/gst-plugins-bad-0.10.21/gst-libs'
Making all in gst
make[3]: Entering directory `/home/luca/gstreamer/gst-plugins-bad-0.10.21/gst-libs/gst'
Making all in interfaces
make[4]: Entering directory `/home/luca/gstreamer/gst-plugins-bad-0.10.21/gst-libs/gst/interfaces'
make  all-am
make[5]: Entering directory `/home/luca/gstreamer/gst-plugins-bad-0.10.21/gst-libs/gst/interfaces'
make[5]: Nothing to be done for `all-am'.
make[5]: Leaving directory `/home/luca/gstreamer/gst-plugins-bad-0.10.21/gst-libs/gst/interfaces'
make[4]: Leaving directory `/home/luca/gstreamer/gst-plugins-bad-0.10.21/gst-libs/gst/interfaces'
Making all in signalprocessor
make[4]: Entering directory `/home/luca/gstreamer/gst-plugins-bad-0.10.21/gst-libs/gst/signalprocessor'
make[4]: Nothing to be done for `all'.
make[4]: Leaving directory `/home/luca/gstreamer/gst-plugins-bad-0.10.21/gst-libs/gst/signalprocessor'
Making all in video
make[4]: Entering directory `/home/luca/gstreamer/gst-plugins-bad-0.10.21/gst-libs/gst/video'
  CC     libgstbasevideo_0.10_la-gstbasevideoutils.lo
  CC     libgstbasevideo_0.10_la-gstbasevideocodec.lo
  CC     libgstbasevideo_0.10_la-gstbasevideodecoder.lo
  CC     libgstbasevideo_0.10_la-gstbasevideoencoder.lo
  CC     libgstbasevideo_0.10_la-gstbasevideoparse.lo
  CCLD   libgstbasevideo-0.10.la
libtool: link: warning: library `/home/luca/.../arm-2010q1_vsync/arm-none-linux-gnueabi/libc/usr/lib/libgstbase-0.10.la' was moved.
libtool: link: warning: library `/home/luca/.../arm-2010q1_vsync/arm-none-linux-gnueabi/libc/usr/lib/libgstreamer-0.10.la' was moved.
libtool: link: warning: library `/home/luca/.../arm-2010q1_vsync/arm-none-linux-gnueabi/libc/usr/lib/libgobject-2.0.la' was moved.
libtool: link: warning: library `/home/luca/.../arm-2010q1_vsync/arm-none-linux-gnueabi/libc/usr/lib/libgmodule-2.0.la' was moved.
libtool: link: warning: library `/home/luca/.../arm-2010q1_vsync/arm-none-linux-gnueabi/libc/usr/lib/libgthread-2.0.la' was moved.
libtool: link: warning: library `/home/luca/.../arm-2010q1_vsync/arm-none-linux-gnueabi/libc/usr/lib/libglib-2.0.la' was moved.
libtool: link: warning: library `/home/luca/.../arm-2010q1_vsync/arm-none-linux-gnueabi/libc/usr/lib/libgstvideo-0.10.la' was moved.
/usr/lib/libxml2.so: could not read symbols: File in wrong format
collect2: ld returned 1 exit status
make[4]: *** [libgstbasevideo-0.10.la] Error 1
make[4]: Leaving directory `/home/luca/gstreamer/gst-plugins-bad-0.10.21/gst-libs/gst/video'
make[3]: *** [all-recursive] Error 1
make[3]: Leaving directory `/home/luca/gstreamer/gst-plugins-bad-0.10.21/gst-libs/gst'
make[2]: *** [all-recursive] Error 1
make[2]: Leaving directory `/home/luca/gstreamer/gst-plugins-bad-0.10.21/gst-libs'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/home/luca/gstreamer/gst-plugins-bad-0.10.21'
make: *** [all] Error 2

它似乎正在尝试链接到我的桌面libxml2。为什么它不与我在工具链中具有所有符号的那个链接？

Answer 1

您的配置脚本是否支持autoconf交叉编译？在configure.in中，调用AC_PROG_CC后shell变量cross_compiling的值是多少？

如果设置为no，那么makefile是否设置为使用交叉编译器？

要设置这些，您可以在手册中覆盖它们，也可以使用环境变量等以下示例

export CC = arch-gcc export CXX = arch-c ++ export arch-ld export AR = arch-ar export AS = arch-as export NM = arch-nm 导出STRIP = arch-strip

如果设置为yes，则在makefile中检查专门针对libxml的包含路径。

在ARM上编译gst-plugins-bad的另一个可能的资源是以下guide

Answer 2

你确定你的工具链有libxml2吗？或者更确切地说，是您的sysroot。

您可能需要导出PKG_CONFIG，因此当您运行'pkg-config --libs libxml-2.0'时，您将获得正确的路径。此外，您可以检查生成的Makefile以查看使用的真实标志，或使用详细选项构建。

GStreamer的构建内容也可能因交叉编译而中断，这是我使用scratchbox 2的原因之一;它使交叉编译透明。

为ARM平台编译库时出错

2 个答案: