how to step into 'strcpy'

ro4tub

oscar@debian:~/source/glibc-2.4/resolv$ uname -a
Linux debian 2.6.8-2-386 #1 Tue Aug 16 12:46:35 UTC 2005 i686 GNU/Linux

oscar@debian:~/source/glibc-2.4/resolv$ gcc -v
Reading specs from /usr/lib/gcc-lib/i486-linux/3.3.5/specs
Configured with: ../src/configure -v --enable-languages=c,c++,java,f77,pascal,objc,ada,treelang --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-gxx-include-dir=/usr/include/c++/3.3 --enable-shared --enable-__cxa_atexit --with-system-zlib --enable-nls --without-included-gettext --enable-clocale=gnu --enable-debug --enable-java-gc=boehm --enable-java-awt=xlib --enable-objc-gc i486-linux
Thread model: posix
gcc version 3.3.5 (Debian 1:3.3.5-13)


现在 我写了个C++程序，想跟踪进strcpy看看 究竟，奈何进不去！
是否要必须编译glibc源码才行？
有其他办法吗？如设置src路径？
同样如果要跟进 stl(stdc++)源代码，又要如何设置？

谢谢！