[LLVMdev] reading & writing bitcode from non file, e.g. GDBM store (or MySQL database)

[Gordon Henriksen]

On Dec 2, 2007, at 13:46, Basile STARYNKEVITCH wrote:

> First, I don't understand what precisely is in the /usr/local/ 
> include/llvm/Support/ directory
>
> In particular, it seems to me that nothing in the documentation says  
> that MemoryBuffer.h in inside it....
>
> I'm quite annoyed to understand what exactly is the public interface  
> to LLVM!
> The doxygen documentation does not help: some classes or includes  
> are conceptually private to the LLVM implementation, i.e. not  
> available in /usr/local/include/ after a standard installation

That is a bit frustrating. If a symbol is defined under "include/ 
llvm", then it is public (installed). If it comes from "lib"  
someplace, then it is private (not installed). doxygen includes this  
information on some pages [1]. Reading the headers directly might make  
it clearer.

The doxygen documentation is complimentary to the documentation in  
prose [2], so you might look there first.

> I want to store modules inside non-files, for example inside GDBM  
> entries (or inside MySQL databases). Apparently, I can read a module  
> from a GDBM store with something like (all error handling is skipped)
> ...
> Unfortunately, there is no way of dumping into memory, except by  
> going thru a stdc++ memory output buffer. Or am I wrong on this?

I think you've answered your own question!

— Gordon


[1] Like here, right at the top: http://llvm.org/doxygen/Type_8h.html
[2] http://llvm.org/docs/ etc., especially http://llvm.org/docs/ProgrammersManual.html