Interim note: Apparently, calling compile_file() more than once has not been done before? I am seeing many global variables in cgraphunit.c that need to be reinitialized in this case. Also, some static variables are defined locally in functions, e.g. 'first_analyzed' and 'first_analyzed_var' in cgraph_analyze_functions(). Those need to be pulled outside for reinitialization.
I am making the necessary changes and extending init_cgraph() as needed. I hope my changes stand a chance for being integrated ;) Oliver On 2009-04-12 at 19:29 +0200, Oliver Kellogg wrote: > Picking up an old thread, > http://gcc.gnu.org/ml/gcc/2003-03/msg00281.html > > > On Tue, 4 Mar 2003, Geert Bosch <bosch at gnat dot com> wrote: > > [...] > > Best would be to first post a design overview, > > before doing a lot of work in order to prevent spending time > > on implementing something that may turn out to have fundamental > > problems. > > I've done a little experimenting to get a feel for this. > > I've looked at the work done toward the GCC compile server but > decided that I want to concentrate on GNAT trees (whereas the > compile server targets the GNU trees.) > > Also I am aiming somewhat lower - not making a separate compile > server process but rather extending gnat1 to handle multiple > files in a single invocation. > > The current GNAT code makes a strong assumption that there be > only one main unit, and this Main_Unit be located at index 0 of > Lib.Units.Table (see procedure Lib.Load.Load_Main_Source). > > I am currently looking at having each main unit supplied on > the gnat1 command line overwrite the Main_Unit in the Units table. > > What do you think of this approach? > > The attached patch sets the stage for passing multiple source > files to a single gnat1 invocation. (Beware, this is a rough cut. > Best use "svn diff --diff-cmd diff -x -uw" after applying as > there are many changes that only affect indentation.) > > Thanks, > > Oliver > >
