Hi guys, Let's continue this discussion. Summing up what was said above, I think we need following changes in LTO-infrastructure to enable offloading: * [in lto_plugin] claim files with .openmp (or whatever name) sections along with files containing .lto sections, as we do now * [in lto_plugin] check if resolution file is generated correctly and probably fix it a bit to properly handle LTO and OpenMP handling (separately from each other) * [in WPA] save .openmp sections to a new partition (in future - into several new partitions). * [in WPA] save a copy of symtab (or its subset) to this openmp-partition. * [in lto_wrapper] compile the openmp-partition with gcc-target and then link it with ld-target
Is this a correct overview of the needed changes? If I got it right, then there is a follow-up question: how would we support several different targets? We need to be able to invoke different versions of gcc-target from lto_wrapper - do we want to have plugins there as well (yeah, plugins for plugin:) )? Thanks, Michael
