1 files changed, 81 insertions, 0 deletions
diff --git a/klibc/include/signal.h b/klibc/include/signal.h
new file mode 100644
index 0000000000..1b439077f2
--- /dev/null
+++ b/klibc/include/signal.h
@@ -0,0 +1,81 @@
+/*
+ * signal.h
+ */
+
+#ifndef _SIGNAL_H
+#define _SIGNAL_H
+
+#include <klibc/compiler.h>
+#include <klibc/extern.h>
+#include <string.h>		/* For memset() */
+#include <limits.h>		/* For LONG_BIT */
+#include <sys/types.h>
+#include <asm/signal.h>
+
+#include <klibc/archsignal.h>
+
+/* glibc seems to use sig_atomic_t as "int" pretty much on all architectures.
+   Do the same, but allow the architecture to override. */
+#ifdef _KLIBC_HAS_ARCH_SIG_ATOMIC_T
+typedef int sig_atomic_t;
+#endif
+
+/* Some architectures don't define these */
+#ifndef SA_RESETHAND
+# define SA_RESETHAND SA_ONESHOT
+#endif
+#ifndef SA_NODEFER
+# define SA_NODEFER SA_NOMASK
+#endif
+#ifndef NSIG
+# define NSIG _NSIG
+#endif
+
+__extern const char * const sys_siglist[];
+
+/* This assumes sigset_t is either an unsigned long or an array of such,
+   and that _NSIG_BPW in the kernel is always LONG_BIT */
+
+static __inline__ int sigemptyset(sigset_t *__set)
+{
+  memset(__set, 0, sizeof *__set);
+  return 0;
+}
+static __inline__ int sigfillset(sigset_t *__set)
+{
+  memset(__set, ~0, sizeof *__set);
+  return 0;
+}
+static __inline__ int sigaddset(sigset_t *__set, int __signum)
+{
+  unsigned long *__lset = (unsigned long *)__set;
+  __lset[__signum/LONG_BIT] |= 1UL << (__signum%LONG_BIT);
+  return 0;
+}
+static __inline__ int sigdelset(sigset_t *__set, int __signum)
+{
+  unsigned long *__lset = (unsigned long *)__set;
+  __lset[__signum/LONG_BIT] &= ~(1UL << (__signum%LONG_BIT));
+  return 0;
+}
+static __inline__ int sigismember(sigset_t *__set, int __signum)
+{
+  unsigned long *__lset = (unsigned long *)__set;
+  return (int)((__lset[__signum/LONG_BIT] >> (__signum%LONG_BIT)) & 1);
+}
+
+__extern __sighandler_t __signal(int, __sighandler_t, int);
+__extern __sighandler_t sysv_signal(int, __sighandler_t);
+__extern __sighandler_t bsd_signal(int, __sighandler_t);
+__extern int sigaction(int, const struct sigaction *, struct sigaction *);
+__extern int sigprocmask(int, const sigset_t *, sigset_t *);
+__extern int sigpending(sigset_t *);
+__extern int sigsuspend(const sigset_t *);
+__extern int rt_sigaction(int, const struct sigaction *, struct sigaction *, size_t);
+__extern int rt_sigprocmask(int, const sigset_t *, sigset_t *, size_t);
+__extern int rt_sigpending(sigset_t *, size_t);
+__extern int rt_sigsuspend(const sigset_t *, size_t);
+__extern int raise(int);
+__extern int kill(pid_t, int);
+
+#endif /* _SIGNAL_H */