int do_sigaltstack(const struct sigaltstack *ss, struct sigaltstack *oss);
void gemu_log(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
-void qerror(const char *fmt, ...);
+void qerror(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
void write_dt(void *ptr, unsigned long addr, unsigned long limit, int flags);