Question

我将使用此工具链交叉编译我简单的“Hello World”程序：

arm-hisiv100-linux

然后在没有任何内置库的目标上运行我已经使用 -static 选项

测试了我的工具链

arm-hisiv100-linux-gcc HelloWorld.c -o HelloWorld-static -static
arm-hisiv100-linux-gcc HelloWorld.c -o HelloWorld
file HelloWorld-static
     HelloWorld-static: ELF 32-bit LSB executable, ARM, version 1 (SYSV), statically linked, not stripped
file HelloWorld
     HelloWorld: ELF 32-bit LSB executable, ARM, version 1 (SYSV), dynamically linked (uses shared libs), not stripped

我的动态程序只需要运行libc.so.0（只是libuClibc-0.9.32.1.so的链接），

objdump -x HelloWorld |grep NEEDED
        NEEDED               libc.so.0

我在工具链的库中找到了它

file /opt/hisi-linux-nptl/arm-hisiv100-linux/target/lib/libuClibc-0.9.32.1.so
     /opt/hisi-linux-nptl/arm-hisiv100-linux/target/lib/libuClibc-0.9.32.1.so: ELF 32-bit LSB shared object, ARM, version 1 (SYSV), dynamically linked (uses shared libs), stripped

但libuClibc-0.9.32.1.so也有其动态依赖性

objdump -x /opt/hisi-linux-nptl/arm-hisiv100-linux/target/lib/libuClibc-0.9.32.1.so |grep NEEDED
          NEEDED               ld-uClibc.so.0
file /opt/hisi-linux-nptl/arm-hisiv100-linux/target/lib/ld-uClibc-0.9.32.1.so
/opt/hisi-linux-nptl/arm-hisiv100-linux/target/lib/ld-uClibc-0.9.32.1.so: ELF 32-bit LSB shared object, ARM, version 1 (SYSV), dynamically linked, stripped

所以我将NEEDED库的libuClibc-0.9.32.1.so'和'ld-uClibc-0.9.32.1.so'复制到目标（实际上我使用NFS），然后修改LD_LIBRARY_PATH变量。

myTarget # ls
         HelloWorld         HelloWorld-static  HelloWorld.c       libc.so.0 ld-uClibc.so.0
myTarget # chmod +x HelloWorld HelloWorld-static
myTarget # export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$PWD/
myTarget # export
         export HOME='/'
         export LD_LIBRARY_PATH='/usr/local/lib:/usr/lib:/mnt/mtd/share/HelloWorldProgram/'
         export LOGNAME='root'
         export OLDPWD='/mnt/mtd/share'
         export PATH='/usr/bin:/usr/sbin:/bin:/sbin'
         export PWD='/mnt/mtd/share/HelloWorldProgram'
         export SHELL='/bin/sh'
         export TERM='vt102'
         export USER='root'

我成功运行了HelloWorld-static而不是HelloWorld

./HelloWorld-static
          Hello EveryBody, this is my simple HelloWorld
./HelloWorld
-sh: ./HelloWorld: not found

我不知道我错过了什么

任何想法或帮助将不胜感激。

最好的问候

Loi Dang

交叉编译的程序不能与我导出的LD_LIBRARY_PATH一起使用

0 个答案: