On Jan 25 2023, Richard Biener wrote: > where we'd prefer -funwind-tables over -fno-unwind-tables when the > options do not match > across TUs. Note that you likely want to add > -f[asynchronous-]unwind-tables handling > in lto-options.cc:lto_write_options as well so the default is streamed > as explicit option. > Otherwise a single TU with -fno-unwind-tables on x86-64 would cause > the whole LTO > compilation to be built without.
I don't think we actually need to handle -fasynchronous-unwind-tables here, since that implies -funwind-tables, and only the latter is relevant for dwarf2out_do_eh_frame. -- Andreas Schwab, SUSE Labs, sch...@suse.de GPG Key fingerprint = 0196 BAD8 1CE9 1970 F4BE 1748 E4D4 88E3 0EEA B9D7 "And now for something completely different."
