+#include <signal.h>
+
+/* NOTE: it works only because the glibc sigset_t is >= kernel sigset_t */
+struct qemu_sigaction {
+ union {
+ void (*_sa_handler)(int);
+ void (*_sa_sigaction)(int, struct siginfo *, void *);
+ } _u;
+ unsigned long sa_flags;
+ void (*sa_restorer)(void);
+ sigset_t sa_mask; /* mask last for extensibility */
+};
+
+int qemu_sigaction(int signum, const struct qemu_sigaction *act,
+ struct qemu_sigaction *oldact);
+
+#undef sigaction
+#undef sa_handler
+#undef sa_sigaction
+#define sigaction qemu_sigaction
+#define sa_handler _u._sa_handler
+#define sa_sigaction _u._sa_sigaction
+