UC_SIGCONTEXT_SS 446 arch/x86/kernel/signal.c flags = UC_FP_XSTATE | UC_SIGCONTEXT_SS; UC_SIGCONTEXT_SS 448 arch/x86/kernel/signal.c flags = UC_SIGCONTEXT_SS; UC_SIGCONTEXT_SS 399 tools/testing/selftests/x86/sigreturn.c if (!(ctx->uc_flags & UC_SIGCONTEXT_SS)) {