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主持人:Linux BBB-VirtualBox 3.19.0-25-generic#26〜14.04.1-Ubuntu SMP Fri Jul 24 21:16:20 UTC 2015 x86_64 x86_64 x86_64 GNU / Linux
目标:Linux beaglebone 3.8.13-bone70#1 SMP Fri Jan 23 23:15:42 UTC 2015 armv7l GNU / Linux
通过运行以下命令,我在主机上编译了libmodbus:
./autogen.sh
./configure --host=arm-linux-gnueabi --prefix=/home/BBB/build
sudo make
sudo make install
和lib和include将在路径/home/BBB/build ,复制到目标系统路径/usr/local并运行sudo ldconfig 。
然后我建立应用程序:
arm-linux-gnueabi-gcc main.c $(pkg-config --libs --cflags ~/BBB/build/lib/pkgconfig/libmodbus.pc)
在目标上运行并返回错误:
root@beaglebone:~# ./a.out
./a.out: error while loading shared libraries: libmodbus.so.5: cannot open shared object file: No such file or directory
但我可以在/usr/local/lib找到libmodbus.so.5 :
root@beaglebone:~# file a.out
a.out: ELF 32-bit LSB executable, ARM, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.32, BuildID[sha1]=0x4bc4bfa11806ebaffdd359ccf3a3144a4fda0a75, not stripped
root@beaglebone:~# find / -name "libmodbus*"
/usr/local/lib/libmodbus.so
/usr/local/lib/pkgconfig/libmodbus.pc
/usr/local/lib/libmodbus.la
/usr/local/lib/libmodbus.so.5.1.0
/usr/local/lib/libmodbus.so.5
/usr/local/include/libmodbus
......
我将库路径添加到ld.so.conf和LD_LIBRARY_PATH但仍然返回相同的错误。
root@beaglebone:~# cat /etc/ld.so.conf
include /etc/ld.so.conf.d/*.conf
/usr/local/lib
root@beaglebone:~# echo $LD_LIBRARY_PATH
/usr/local/lib:
root@beaglebone:~# ldconfig -p | grep libmodbus
libmodbus.so.5 (libc6) => /usr/local/lib/libmodbus.so.5
libmodbus.so (libc6) => /usr/local/lib/libmodbus.so
编译应用程序时尝试添加-Wl,-rpath=/usr/local/lib ,但仍然返回错误。
当我配置libmodbus并静态编译应用程序时,该应用程序运行得很好。
我该怎么办?
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