
Implement setup_{,rt_}frame and do_{,rt_}sigreturn for PPC 32-bit. Use the same TARGET_QEMU_ESIGRETURN hack as for MIPS to avoid clobbering register state on a sigreturn. Signed-off-by: Nathan Froyd <froydnj@codesourcery.com> Signed-off-by: malc <av1474@comtv.ru>