my_ss 767 tools/testing/selftests/x86/sigreturn.c unsigned short my_cs, my_ss; my_ss 770 tools/testing/selftests/x86/sigreturn.c asm volatile ("mov %%ss,%0" : "=r" (my_ss)); my_ss 847 tools/testing/selftests/x86/sigreturn.c test_bad_iret(32, my_ss, npcode32_sel);