David Brown <david.br...@hesbynett.no> writes: > After doing a bit more reading and thinking, it seems to me that > -fwhole-program will be used in most cases where LTO is used. You use > -flto when compiling each source file, then link them with gcc with > -flto and -fwhole-program. Except in the case of libraries or other > files which need external symbols, you will want that combination to > generate optimal code. So if this combination alone, without common > symbols, is going to cause problems, then this would be a much bigger > issue than if it is only triggered by common symbols.
That scenario is fine. You can look back to see the problematic case posted earlier. It was a case where one file was compiled with -flto, one file was compiled without -flto, both files defined a common symbol with the same name, the object files were linked together using -flto -fwhole-program, and the gold plugin was not used. All elements are essential to recreate the problem. Ian
