https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65797
--- Comment #8 from Jan Hubicka <hubicka at ucw dot cz> --- > With gold's ICF, as I understand it, there is a function name and file/line > information for every function in the backtrace. It may not be the name or > the ICF does not do the wrappers as far as I know. It either redirect to alias or not at all. If debugger behaves in a way ignoring functions with DECL_IGNORED=1, then the backtraces are the same with alias reidrection and wrapper. In both cases original function disappears and is replaced by merged-to function. With this patch we preserve original function but insert the merged-to function. Both is wrong, but I guess having both functions where possible is better htan completely dropping the original. > file/line info you expect, but it's there. > > What broke the Go testcase is that there was no information at all. > > It's not urgent for Go, by the way, as I've committed a workaround. But I > think it would be nice to fix for GCC 5 if possible. It is Jakub's call. I think the patch can go in if someone gets around testing it. What I am concerned about is that expand_thunk may not completely set up the datastructures for debug info as this path was never excercised. But htat should be easy to test. Honza > > -- > You are receiving this mail because: > You are the assignee for the bug.
