On Sat, Aug 4, 2012 at 12:52 PM, Matt Davis <mattdav...@gmail.com> wrote: > Hello, > I need to create a global string constant node. In the past, I have > always been able to add global variables, but I have always left them > uninitialized. I know the trick is to build_decl() of VAR_DECL and, I > guess in this case the type char_node_type. However, I want the > global decl initialized and referring to a string literal. I know of > build_string_literal() but that does not create a decl node that I am > aware of. I am unsure as to how to set that literal to my VAR_DECL > instance, so that it is in the read-only section of the resulting > binary, and referred to by the identifier I pass to build_decl(). Is > there an example in the code my grep-foo has failed me for this > specific case?
After a bunch of tries, I have what I need. I knew probability would pay off, some call this persistence, I call it probability. Anyways, I had to set DECL_INITIAL for the VAR_DECL I created. I set the decl with the string literal from build_string_literal(). I then called varpool_finalize_decl() on the decl instance and also marked the node as "needed" via varpool_mark_needed_node(). -Matt
