basic signal handling

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@41 c046a42c-6fe2-441c-8c8c-71466251a162

1 files changed, 37 insertions, 0 deletions

diff --git a/linux-user/syscall_defs.h b/linux-user/syscall_defs.h
index 6b0a714cb7..b83aeacebd 100644
--- a/linux-user/syscall_defs.h
+++ b/linux-user/syscall_defs.h
@@ -29,6 +29,11 @@ struct target_timespec {
     target_long tv_nsec;
 };
 
+struct target_itimerval {
+    struct target_timeval it_interval;
+    struct target_timeval it_value;
+};
+
 struct target_iovec {
     target_long iov_base;   /* Starting address */
     target_long iov_len;   /* Number of bytes */
@@ -113,6 +118,38 @@ typedef struct {
     target_ulong sig[TARGET_NSIG_WORDS];
 } target_sigset_t;
 
+#ifdef BSWAP_NEEDED
+static inline void tswap_sigset(target_sigset_t *d, const target_sigset_t *s)
+{
+    int i;
+    for(i = 0;i < TARGET_NSIG_WORDS; i++)
+        d->sig[i] = tswapl(s->sig[i]);
+}
+#else
+static inline void tswap_sigset(target_sigset_t *d, const target_sigset_t *s)
+{
+    *d = *s;
+}
+#endif
+
+static inline void target_siginitset(target_sigset_t *d, target_ulong set)
+{
+    int i;
+    d->sig[0] = set;
+    for(i = 1;i < TARGET_NSIG_WORDS; i++)
+        d->sig[i] = 0;
+}
+
+void host_to_target_sigset(target_sigset_t *d, sigset_t *s);
+void target_to_host_sigset(sigset_t *d, target_sigset_t *s);
+void host_to_target_old_sigset(target_ulong *old_sigset, 
+                               const sigset_t *sigset);
+void target_to_host_old_sigset(sigset_t *sigset, 
+                               const target_ulong *old_sigset);
+struct target_sigaction;
+int do_sigaction(int sig, const struct target_sigaction *act,
+                 struct target_sigaction *oact);
+
 /* Networking ioctls */
 #define TARGET_SIOCADDRT       0x890B          /* add routing table entry */
 #define TARGET_SIOCDELRT       0x890C          /* delete routing table entry */