Question

我试图将libusb-1.0库与Nsight Eclipse一起使用。我按照以下步骤进行操作：

下载了libusb-1.0 tarball并安装在主机（Ubuntu）中。

根据libusb安装结束时的说明：

Libraries have been installed in:
    /usr/local/lib

If you ever happen to want to link against installed libraries
in a given directory, LIBDIR, you must either use libtool, and
specify the full pathname of the library, or use the `-LLIBDIR'
flag during linking and do at least one of the following:

  - Add LIBDIR to the `LD_LIBRARY_PATH' environment variable

During execution:

  - Add LIBDIR to the `LD_RUN_PATH' environment variable

During linking:

  - Use the `-Wl,-rpath -Wl,LIBDIR' linker flag
  - Have your system administrator add LIBDIR to `/etc/ld.so.conf'

我添加了以下内容：

＆＃39; LIBDIR＆＃39;和菜单工具下的libusb.-1.0.so文件路径 - ＆gt;设置 - ＆gt; NVCC Linker - ＆gt;图书馆 - ＆gt;图书馆搜索路径（-L）
LD_LIBRARY_PATH和LD_RUN_PATH环境变量
NVCC编译器下的libusb.h路径 - ＆gt;包括 - ＆gt;包含路径（-l）
-lusb-1.0 - ＆gt;其他 - ＆gt;其他旗帜

当我在Nsight Eclipse中构建项目时，我在控制台中收到以下错误。

make all

Building file: ../src/sample.cu
Invoking: NVCC Compiler
/usr/local/cuda-6.5/bin/nvcc -I/usr/include/libusb-1.0 -G -g -O0 -ccbin arm-linux-gnueabihf-g++-4.6 -gencode arch=compute_20,code=sm_20 --target-cpu-architecture ARM -m32 -odir "src" -M -o "src/sample.d" "../src/sample.cu"
/usr/local/cuda-6.5/bin/nvcc -I/usr/include/libusb-1.0 -G -g -O0 --compile --relocatable-device-code=false -gencode arch=compute_20,code=compute_20 -gencode arch=compute_20,code=sm_20 --target-cpu-architecture ARM -m32 -ccbin arm-linux-gnueabihf-g++-4.6  -x cu -o  "src/sample.o" "../src/sample.cu"
../src/sample.cu(71): warning: variable "data" was declared but never referenced

../src/sample.cu(71): warning: variable "data" was declared but never referenced

Finished building: ../src/sample.cu

Building target: sample
Invoking: NVCC Linker
/usr/local/cuda-6.5/bin/nvcc --cudart static -LLIBDIR -Xlinker --unresolved-symbols=ignore-in-shared-libs --relocatable-device-code=false -gencode arch=compute_20,code=compute_20 -gencode arch=compute_20,code=sm_20 --target-cpu-architecture ARM -m32 -ccbin arm-linux-gnueabihf-g++-4.6 -link -o  "sample"  ./src/sample.o  -lusb-1.0
/usr/lib/../lib/libusb-1.0.so: file not recognized: File format not recognized
collect2: error: ld returned 1 exit status
make: *** [sample] Error 1

我该如何解决这个问题？

Answer 1

我能够在libusb开发邮件列表的帮助下修复我的问题。应该在64位主机上为目标配置libusb库。

我必须为目标arm-linux-gnueabihf配置库，我必须禁用udev。所以，我使用了命令

./ configure --host = arm-linux-gnueabihf --prefix = / usr --disable-static --disable-udev＆amp;＆amp;制造＆amp;＆amp; make install

我能够正确配置libusb并立即编译。

在Nsight Eclipse中链接libusb-1.0库？

1 个答案: