davidxl added a comment. With the current gcov_flush implementation in LLVM, making gcov_flush's visibility to be default will simply lead to wrong behavior. GCC libgcov's implementation is more elaborate -- it allows gcov_flush to dump gcda data for all dynamic objects while making sure gcov_exit only dumps the gcda files from the same dynamic module (otherwise, there will be wrong profile merging). This is done via two levels of linked list.
The patch https://reviews.llvm.org/D48538 is in the right direction, but not complete yet. https://reviews.llvm.org/D45454 _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
