https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69997
Liu Qiang <tcliuqiang at msn dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED --- Comment #6 from Liu Qiang <tcliuqiang at msn dot com> --- The problem has been resolved by changing the gcc configure options: add configure option --with-sysroot= for gcc second stage building. this option will disable the inhibit_libc, and then enable MD_FALLBACK_FRAME_STATE_FOR feature which is needed by unwinder.