[lldb-dev] Exported symbols from LLDB build products

Bruce Mitchener via lldb-dev lldb-dev at lists.llvm.org
Thu Aug 13 18:43:53 PDT 2015


On Mac OS X, when using the xcode projects, there is some machinery to
manage what symbols are exported from various things:

   - liblldb only exports the public API.
   - debugserver only exports _DNB* and __DNB*
   - argdumper exports nothing
   - lldb-server exports nothing

This machinery only exists within the xcode projects though and isn't used
in the cmake or autotools build systems.

I'm not interested in adding it to the autotools build system, but I would
like to get this set up in the cmake build system.

The LLVM cmake code provides a helper function for managing this already in
a cross-platform manner. The main difference is that it expects one fewer
leading underscores in the exports files and a particular naming scheme for
the files.

Managing the files and their names is pretty easy and I can handle that.

The other difference is a bit harder to manage unless we set up a script to
run in the xcode build to perform the mapping (not hard for someone that
knows xcode, I guess).


   - Is this something we want on all platforms? I think the most important
   of these is limiting liblldb to only exporting the public API.
   - Should any other targets have their exported symbols similarly
   restricted? (Perhaps lldb-mi?)
   - Is someone willing to assist with a minor xcode change so that we
   don't have to have a separate copy of 2 of the files for the xcode build?


 - Bruce
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