https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66826
Rich Felker <bugdal at aerifal dot cx> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |bugdal at aerifal dot cx --- Comment #5 from Rich Felker <bugdal at aerifal dot cx> --- I think the issue is more complicated. Even if glibc were fixed not to crash, code like the following: return dlsym(RTLD_NEXT, "whatever"); would return the wrong result under tco when the caller's caller is in a different dso. GCC probably needs a "notailcall" attribute to fix this, but maybe there are workarounds glibc could do to prevent tco without needing a new attribute...