https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106680
--- Comment #14 from Sebastian Huber <sebastian.hu...@embedded-brains.de> --- Thanks for your help, it seems that this patch fixes the issue for RTEMS: diff --git a/gcc/config/rs6000/rtems.h b/gcc/config/rs6000/rtems.h index 57a2325991b..b36e64fec77 100644 --- a/gcc/config/rs6000/rtems.h +++ b/gcc/config/rs6000/rtems.h @@ -36,6 +36,10 @@ #endif #endif +/* RTEMS configured for the 32-bit multilibs doesn't support saving and + restoring 64-bit regs. */ +#define OS_MISSING_POWERPC64 !TARGET_64BIT + /* Copy and paste from linux64.h and freebsd64.h */ #undef TARGET_AIX #define TARGET_AIX TARGET_64BIT
