ocs52:/home2/billing/panpan/C++>ls

hello  hello.cpp  hello.h  hello.o  libhello.a  libhello.so  libwpp.a  main.cpp  main.o

ocs52:/home2/billing/panpan/C++>nm hello.o

                 U __cxa_atexit

                 U __dso_handle

000000000000003e t _GLOBAL__I__Z5helloPKc

                 U __gxx_personality_v0

0000000000000054 t __tcf_0

0000000000000000 t _Z41__static_initialization_and_destruction_0ii

000000000000006c T _Z5helloPKc

                 U _ZNSolsEPFRSoS_E

                 U _ZNSt8ios_base4InitC1Ev

                 U _ZNSt8ios_base4InitD1Ev

                 U _ZSt4cout

                 U _ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_

0000000000000000 b _ZSt8__ioinit

                 U _ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc

ocs52:/home2/billing/panpan/C++>nm libhello.a

hello.o:

                 U __cxa_atexit

                 U __dso_handle

000000000000003e t _GLOBAL__I__Z5helloPKc

                 U __gxx_personality_v0

0000000000000054 t __tcf_0

0000000000000000 t _Z41__static_initialization_and_destruction_0ii

000000000000006c T _Z5helloPKc

                 U _ZNSolsEPFRSoS_E

                 U _ZNSt8ios_base4InitC1Ev

                 U _ZNSt8ios_base4InitD1Ev

                 U _ZSt4cout

                 U _ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_

0000000000000000 b _ZSt8__ioinit

                 U _ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc

ocs52:/home2/billing/panpan/C++>ldd libhello.so

        libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x00002ab3dc282000)

        libm.so.6 => /lib64/libm.so.6 (0x00002ab3dc480000)

        libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00002ab3dc5d5000)

        libc.so.6 => /lib64/libc.so.6 (0x00002ab3dc6e3000)

        /lib64/ld-linux-x86-64.so.2 (0x0000555555554000)

ocs52:/home2/billing/panpan/C++>nm libwpp.a

hello.o:

                 U __cxa_atexit

                 U __dso_handle

000000000000003e t _GLOBAL__I__Z5helloPKc

                 U __gxx_personality_v0

0000000000000054 t __tcf_0

0000000000000000 t _Z41__static_initialization_and_destruction_0ii

000000000000006c T _Z5helloPKc

                 U _ZNSolsEPFRSoS_E

                 U _ZNSt8ios_base4InitC1Ev

                 U _ZNSt8ios_base4InitD1Ev

                 U _ZSt4cout

                 U _ZSt4endlIcSt11char_traitsIcEERSt13basic_ostreamIT_T0_ES6_

0000000000000000 b _ZSt8__ioinit

                 U _ZStlsISt11char_traitsIcEERSt13basic_ostreamIcT_ES5_PKc

main.o:

                 U __gxx_personality_v0

0000000000000000 T main

                 U _Z5helloPKc

ocs52:/home2/billing/panpan/C++>ldd hello

        libstdc++.so.6 => /usr/lib64/libstdc++.so.6 (0x00002b6c9bd03000)

        libm.so.6 => /lib64/libm.so.6 (0x00002b6c9bf01000)

        libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00002b6c9c056000)

        libc.so.6 => /lib64/libc.so.6 (0x00002b6c9c164000)

        /lib64/ld-linux-x86-64.so.2 (0x00002b6c9bbe7000)

ocs52:/home2/billing/panpan/C++>