GCC 里面的一些命令

記錄一下常用GCC 相關的命令和參數

?ldd ---> print share library dependenciy

?LD_LIBRARY_PATH---> environment variable, it will search the path accord to this variable.

??????????????????????????????????? Also check the ldd to verify this environmental variable

ldconfig-----> configure? dynamic linker run-time bind.

???????????????????? it will create a symbol link to the share library, and save it in the catch file. So it can accelarte the speed to find the speed. /etc/ld.so.cache

ld.so----------> dynamic linker or loader

???????????????????????? It will load the share library.

nm----->? list the symbols from object file / share library/ static library

as ------> the portal GNU assembley

ld ------------>? then GNU linker

gcc ------> GNU project c and c++ compiler and is the shell of as and ld.

readlink---> dispaly value of a symbol link

?????????????????? read value of? a symbol link

check the soname

readelf? -d? sharelibrary