Hi,

    I don not know where to ask my questions.

So please regret me for asking some easy questions, which I really do not know.

In emacs source code:

1. Where is the definition of DEFSYM, I can not find it in lisp.h now.

2. Where is the definition of the struct emacs_globals, I can not find it in all the source .c .h files 

    in emacs-master source code which I get from github.

3. Can you give me some advice for reading the emacs source code ?

Can anyone help me, a newbie emacser. Sorry for disturbing  you and thanks a lot! 

BR,

 Miracle