* David Edelsohn: > On Mon, May 11, 2020 at 6:47 AM Florian Weimer via Gcc <gcc@gcc.gnu.org> > wrote: > >> My current preferred solution is something that moves the entire code >> that locates the relevant FDE table into glibc. This is all the code in >> _Unwind_IteratePhdrCallback until the first read_encoded_value_with_base >> call. And the callback mechanism would be gone, so _Unwind_Find_FDE >> would call __dl_ehframe_find (see below) and then the reamining >> processing in _Unwind_IteratePhdrCallback. > > Not all GCC/G++ targets are GNU/Linux and use GLIBC. A duplicate > implementation in GLIBC creates its own set of advantages and > disadvantages.
The new interface is no less generic than _dl_iterate_phdr, so other systems can easily implement it if they want (and reuse the libgcc code that uses it). Thanks, Florian
