X-Git-Url: http://git.osdn.net/view?a=blobdiff_plain;f=include%2Fsignal.h;h=be24cf366292f395fc817b0f33aae3405e485a19;hb=HEAD;hp=f775a575575821229b5290ca7b61e5a58badbb37;hpb=2f205af9bbc51605de8aa54edaa01387a55d187b;p=uclinux-h8%2FuClibc.git

diff --git a/include/signal.h b/include/signal.h
index f775a5755..be24cf366 100644
--- a/include/signal.h
+++ b/include/signal.h
@@ -1,4 +1,4 @@
-/* Copyright (C) 1991-2003, 2004 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2003, 2004, 2007, 2009 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -12,9 +12,8 @@
    Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, write to the Free
-   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
-   02111-1307 USA.  */
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
 
 /*
  *	ISO C99 Standard: 7.14 Signal handling <signal.h>
@@ -87,15 +86,29 @@ typedef __sigset_t sigset_t;
 typedef __pid_t pid_t;
 #  define __pid_t_defined
 # endif
+#endif
+#ifdef __USE_XOPEN
 # ifndef __uid_t_defined
 typedef __uid_t uid_t;
 #  define __uid_t_defined
 # endif
 #endif	/* Unix98 */
 
+#if defined __USE_POSIX199309 && defined __UCLIBC_HAS_REALTIME__
+/* We need `struct timespec' later on.  */
+# define __need_timespec
+# include <time.h>
+#endif
+
+#if defined __USE_POSIX199309 || defined __USE_XOPEN_EXTENDED
+/* Get the `siginfo_t' type plus the needed symbols.  */
+# include <bits/siginfo.h>
+#endif
+
 
 /* Type of a signal handler.  */
 typedef void (*__sighandler_t) (int);
+
 #if defined __UCLIBC_HAS_OBSOLETE_SYSV_SIGNAL__
 /* The X/Open definition of `signal' specifies the SVID semantic.  Use
    the additional function `sysv_signal' when X/Open compatibility is
@@ -163,10 +176,16 @@ extern __sighandler_t ssignal (int __sig, __sighandler_t __handler)
 extern int gsignal (int __sig) __THROW;
 #endif /* Use SVID.  */
 
-#ifdef __USE_MISC
+/* glibc guards the next two wrong with __USE_XOPEN2K */
+#if defined __USE_MISC || defined __USE_XOPEN2K8
 /* Print a message describing the meaning of the given signal number.  */
-extern void psignal (int __sig, __const char *__s);
-#endif /* Use misc.  */
+extern void psignal (int __sig, const char *__s);
+#endif /* Use misc or POSIX 2008.  */
+
+#if 0 /*def __USE_XOPEN2K8*/
+/* Print a message describing the meaning of the given signal information.  */
+extern void psiginfo (const siginfo_t *__pinfo, const char *__s);
+#endif /* POSIX 2008.  */
 
 #ifdef __UCLIBC_SUSV4_LEGACY__
 /* The `sigpause' function has two different interfaces.  The original
@@ -177,23 +196,25 @@ extern void psignal (int __sig, __const char *__s);
 
    This function is a cancellation point and therefore not marked with
    __THROW.  */
-extern int __sigpause (int __sig_or_mask, int __is_sig);
-libc_hidden_proto(__sigpause)
+/*extern int __sigpause (int __sig_or_mask, int __is_sig);*/
 
 #ifdef __FAVOR_BSD
 /* Set the mask of blocked signals to MASK,
    wait for a signal to arrive, and then restore the mask.  */
-extern int sigpause (int __mask) __THROW __attribute_deprecated__;
-# define sigpause(mask) __sigpause ((mask), 0)
+/*extern int sigpause (int __mask) __THROW __attribute_deprecated__;
+# define sigpause(mask) __sigpause ((mask), 0)*/
+/* uClibc note: BSD sigpause is available as __bsd_sigpause.
+ * It is intentionally not prototyped */
 #else
 # ifdef __USE_XOPEN
 /* Remove a signal from the signal mask and suspend the process.  */
-#  define sigpause(sig) __sigpause ((sig), 1)
+extern int sigpause(int __sig);
+/*#  define sigpause(sig) __sigpause ((sig), 1)*/
 # endif
 #endif
 #endif /* __UCLIBC_SUSV4_LEGACY__ */
 
-#ifdef __USE_BSD
+#if 0 /*def __USE_BSD*/
 /* None of the following functions should be used anymore.  They are here
    only for compatibility.  A single word (`int') is not guaranteed to be
    enough to hold a complete signal mask and therefore these functions
@@ -203,14 +224,10 @@ extern int sigpause (int __mask) __THROW __attribute_deprecated__;
 # define sigmask(sig)	__sigmask(sig)
 
 /* Block signals in MASK, returning the old mask.  */
-extern int sigblock (int __mask) __THROW;
-/* collides with libc_hidden_proto: __attribute_deprecated__; */
-libc_hidden_proto(sigblock)
+extern int sigblock (int __mask) __THROW __attribute_deprecated__;
 
 /* Set the mask of blocked signals to MASK, returning the old mask.  */
-extern int sigsetmask (int __mask) __THROW;
-/* collides with libc_hidden_proto: __attribute_deprecated__; */
-libc_hidden_proto(sigsetmask)
+extern int sigsetmask (int __mask) __THROW __attribute_deprecated__;
 
 /* Return currently selected signal mask.  */
 extern int siggetmask (void) __THROW __attribute_deprecated__;
@@ -228,22 +245,11 @@ typedef __sighandler_t sig_t;
 
 #ifdef __USE_POSIX
 
-# ifdef __USE_POSIX199309
-/* We need `struct timespec' later on.  */
-#  define __need_timespec
-#  include <time.h>
-
-/* Get the `siginfo_t' type plus the needed symbols.  */
-#  include <bits/siginfo.h>
-# endif
-
 /* Clear all signals from SET.  */
 extern int sigemptyset (sigset_t *__set) __THROW __nonnull ((1));
-libc_hidden_proto(sigemptyset)
 
 /* Set all signals in SET.  */
 extern int sigfillset (sigset_t *__set) __THROW __nonnull ((1));
-libc_hidden_proto(sigfillset)
 
 /* Add SIGNO to SET.  */
 extern int sigaddset (sigset_t *__set, int __signo) __THROW __nonnull ((1));
@@ -254,20 +260,20 @@ extern int sigdelset (sigset_t *__set, int __signo) __THROW __nonnull ((1));
 libc_hidden_proto(sigdelset)
 
 /* Return 1 if SIGNO is in SET, 0 if not.  */
-extern int sigismember (__const sigset_t *__set, int __signo)
+extern int sigismember (const sigset_t *__set, int __signo)
      __THROW __nonnull ((1));
 
 # ifdef __USE_GNU
 /* Return non-empty value is SET is not empty.  */
-extern int sigisemptyset (__const sigset_t *__set) __THROW __nonnull ((1));
+extern int sigisemptyset (const sigset_t *__set) __THROW __nonnull ((1));
 
 /* Build new signal set by combining the two inputs set using logical AND.  */
-extern int sigandset (sigset_t *__set, __const sigset_t *__left,
-		      __const sigset_t *__right) __THROW __nonnull ((1, 2, 3));
+extern int sigandset (sigset_t *__set, const sigset_t *__left,
+		      const sigset_t *__right) __THROW __nonnull ((1, 2, 3));
 
 /* Build new signal set by combining the two inputs set using logical OR.  */
-extern int sigorset (sigset_t *__set, __const sigset_t *__left,
-		     __const sigset_t *__right) __THROW __nonnull ((1, 2, 3));
+extern int sigorset (sigset_t *__set, const sigset_t *__left,
+		     const sigset_t *__right) __THROW __nonnull ((1, 2, 3));
 # endif /* GNU */
 
 /* Get the system-specific definitions of `struct sigaction'
@@ -275,7 +281,7 @@ extern int sigorset (sigset_t *__set, __const sigset_t *__left,
 # include <bits/sigaction.h>
 
 /* Get and/or change the set of blocked signals.  */
-extern int sigprocmask (int __how, __const sigset_t *__restrict __set,
+extern int sigprocmask (int __how, const sigset_t *__restrict __set,
 			sigset_t *__restrict __oset) __THROW;
 libc_hidden_proto(sigprocmask)
 
@@ -284,11 +290,14 @@ libc_hidden_proto(sigprocmask)
 
    This function is a cancellation point and therefore not marked with
    __THROW.  */
-extern int sigsuspend (__const sigset_t *__set) __nonnull ((1));
+extern int sigsuspend (const sigset_t *__set) __nonnull ((1));
+#ifdef _LIBC
+extern __typeof(sigsuspend) __sigsuspend_nocancel attribute_hidden;
 libc_hidden_proto(sigsuspend)
+#endif
 
 /* Get and/or set the action for signal SIG.  */
-extern int sigaction (int __sig, __const struct sigaction *__restrict __act,
+extern int sigaction (int __sig, const struct sigaction *__restrict __act,
 		      struct sigaction *__restrict __oact) __THROW;
 #ifdef _LIBC
 # if 0 /* this is in headers */
@@ -297,13 +306,15 @@ extern int sigaction (int __sig, __const struct sigaction *__restrict __act,
  * See sigaction.h
  */
 struct old_kernel_sigaction;
-extern int __syscall_sigaction(int, __const struct old_kernel_sigaction *,
+extern int __syscall_sigaction(int, const struct old_kernel_sigaction *,
 	struct old_kernel_sigaction *) attribute_hidden;
 # else /* this is how the function is built */
 extern __typeof(sigaction) __syscall_sigaction attribute_hidden;
 # endif
+# define __need_size_t
+# include <stddef.h>
 /* candidate for attribute_hidden, if NPTL would behave */
-extern int __syscall_rt_sigaction(int, __const struct sigaction *,
+extern int __syscall_rt_sigaction(int, const struct sigaction *,
 	struct sigaction *, size_t)
 # ifndef __UCLIBC_HAS_THREADS_NATIVE__
 		attribute_hidden
@@ -311,6 +322,16 @@ extern int __syscall_rt_sigaction(int, __const struct sigaction *,
 	;
 extern __typeof(sigaction) __libc_sigaction;
 libc_hidden_proto(sigaction)
+
+# ifdef __mips__
+#  define _KERNEL_NSIG_WORDS (_NSIG / _MIPS_SZLONG)
+typedef struct {
+	unsigned long sig[_KERNEL_NSIG_WORDS];
+} kernel_sigset_t;
+#  define __SYSCALL_SIGSET_T_SIZE (sizeof(kernel_sigset_t))
+# else
+#  define __SYSCALL_SIGSET_T_SIZE (_NSIG / 8)
+# endif
 #endif
 
 /* Put in SET all signals that are blocked and waiting to be delivered.  */
@@ -321,7 +342,7 @@ extern int sigpending (sigset_t *__set) __THROW __nonnull ((1));
 
    This function is a cancellation point and therefore not marked with
    __THROW.  */
-extern int sigwait (__const sigset_t *__restrict __set, int *__restrict __sig)
+extern int sigwait (const sigset_t *__restrict __set, int *__restrict __sig)
      __nonnull ((1, 2));
 
 # if defined __USE_POSIX199309 && defined __UCLIBC_HAS_REALTIME__
@@ -329,7 +350,7 @@ extern int sigwait (__const sigset_t *__restrict __set, int *__restrict __sig)
 
    This function is a cancellation point and therefore not marked with
    __THROW.  */
-extern int sigwaitinfo (__const sigset_t *__restrict __set,
+extern int sigwaitinfo (const sigset_t *__restrict __set,
 			siginfo_t *__restrict __info) __nonnull ((1));
 #ifdef _LIBC
 extern __typeof(sigwaitinfo) __sigwaitinfo attribute_hidden;
@@ -340,17 +361,18 @@ extern __typeof(sigwaitinfo) __sigwaitinfo attribute_hidden;
 
    This function is a cancellation point and therefore not marked with
    __THROW.  */
-extern int sigtimedwait (__const sigset_t *__restrict __set,
+extern int sigtimedwait (const sigset_t *__restrict __set,
 			 siginfo_t *__restrict __info,
-			 __const struct timespec *__restrict __timeout)
+			 const struct timespec *__restrict __timeout)
      __nonnull ((1));
 #ifdef _LIBC
-extern __typeof(sigtimedwait) __sigtimedwait attribute_hidden;
+extern __typeof(sigtimedwait) __sigtimedwait_nocancel attribute_hidden;
+libc_hidden_proto(sigtimedwait)
 #endif
 
 /* Send signal SIG to the process PID.  Associate data in VAL with the
    signal.  */
-extern int sigqueue (__pid_t __pid, int __sig, __const union sigval __val)
+extern int sigqueue (__pid_t __pid, int __sig, const union sigval __val)
      __THROW;
 # endif	/* Use POSIX 199306.  */
 
@@ -362,7 +384,7 @@ extern int sigqueue (__pid_t __pid, int __sig, __const union sigval __val)
 /* Names of the signals.  This variable exists only for compatibility.
    Use `strsignal' instead (see <string.h>).  */
 #  define _sys_siglist sys_siglist
-extern __const char *__const sys_siglist[_NSIG];
+extern const char *const sys_siglist[_NSIG];
 # endif
 
 #ifndef __UCLIBC_STRICT_HEADERS__
@@ -389,7 +411,7 @@ struct sigvec
    If the SV_RESETHAND bit is set in `sv_flags', the handler for SIG will be
    reset to SIG_DFL before `sv_handler' is entered.  If OVEC is non-NULL,
    it is filled in with the old information for SIG.  */
-extern int sigvec (int __sig, __const struct sigvec *__vec,
+extern int sigvec (int __sig, const struct sigvec *__vec,
 		   struct sigvec *__ovec) __THROW;
 #endif
 
@@ -406,6 +428,8 @@ extern int sigreturn (struct sigcontext *__scp) __THROW;
 
 
 #if defined __USE_BSD || defined __USE_XOPEN_EXTENDED
+# define __need_size_t
+# include <stddef.h>
 
 # ifdef __UCLIBC_SUSV4_LEGACY__
 /* If INTERRUPT is nonzero, make signal SIG interrupt system calls
@@ -431,7 +455,7 @@ extern int sigstack (struct sigstack *__ss, struct sigstack *__oss)
 
 /* Alternate signal handler stack interface.
    This interface should always be preferred over `sigstack'.  */
-extern int sigaltstack (__const struct sigaltstack *__restrict __ss,
+extern int sigaltstack (const struct sigaltstack *__restrict __ss,
 			struct sigaltstack *__restrict __oss) __THROW;
 
 #endif /* use BSD or X/Open Unix.  */
@@ -467,6 +491,13 @@ extern int __libc_current_sigrtmin (void) __THROW;
 /* Return number of available real-time signal with lowest priority.  */
 extern int __libc_current_sigrtmax (void) __THROW;
 
+#ifdef _LIBC
+extern sigset_t _sigintr attribute_hidden;
+/* simplified version without parameter checking */
+# include <string.h>
+# undef __sigemptyset
+# define __sigemptyset(ss) (memset(ss, '\0', sizeof(sigset_t)), 0)
+#endif
 #endif /* signal.h  */
 
 __END_DECLS