about summary refs log tree commit diff
path: root/sysdeps/unix/sysv/linux/bits
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/unix/sysv/linux/bits')
-rw-r--r--sysdeps/unix/sysv/linux/bits/local_lim.h6
-rw-r--r--sysdeps/unix/sysv/linux/bits/posix_opt.h8
-rw-r--r--sysdeps/unix/sysv/linux/bits/sigaction.h22
-rw-r--r--sysdeps/unix/sysv/linux/bits/siginfo.h257
-rw-r--r--sysdeps/unix/sysv/linux/bits/signum.h21
-rw-r--r--sysdeps/unix/sysv/linux/bits/sigset.h38
6 files changed, 321 insertions, 31 deletions
diff --git a/sysdeps/unix/sysv/linux/bits/local_lim.h b/sysdeps/unix/sysv/linux/bits/local_lim.h
index 7ce423061a..2674aa709e 100644
--- a/sysdeps/unix/sysv/linux/bits/local_lim.h
+++ b/sysdeps/unix/sysv/linux/bits/local_lim.h
@@ -1,5 +1,5 @@
 /* Minimum guaranteed maximum values for system limits.  Linux version.
-   Copyright (C) 1993, 1994, 1995, 1996 Free Software Foundation, Inc.
+   Copyright (C) 1993, 1994, 1995, 1996, 1997 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
@@ -19,3 +19,7 @@
 
 /* The kernel sources contain a file with all the needed information.  */
 #include <linux/limits.h>
+
+/* Maximum amount by which a process can descrease its asynchronous I/O
+   priority level.  */
+#define AIO_PRIO_DELTA_MAX	20
diff --git a/sysdeps/unix/sysv/linux/bits/posix_opt.h b/sysdeps/unix/sysv/linux/bits/posix_opt.h
index e9f8b7f8f3..5ef6d0563d 100644
--- a/sysdeps/unix/sysv/linux/bits/posix_opt.h
+++ b/sysdeps/unix/sysv/linux/bits/posix_opt.h
@@ -1,5 +1,5 @@
 /* Define POSIX options for Linux.
-   Copyright (C) 1996 Free Software Foundation, Inc.
+   Copyright (C) 1996, 1997 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
@@ -67,7 +67,13 @@
 /* Filenames are not silently truncated.  */
 #define	_POSIX_NO_TRUNC	1
 
+/* X/Open realtime support is available.  */
+#define _XOPEN_REALTIME	1
+
 /* XPG4.2 shared memory is supported.  */
 #define	_XOPEN_SHM	1
 
+/* Real-time signals are supported.  */
+#define _POSIX_REALTIME_SIGNALS	1
+
 #endif /* bits/posix_opt.h */
diff --git a/sysdeps/unix/sysv/linux/bits/sigaction.h b/sysdeps/unix/sysv/linux/bits/sigaction.h
index 1806bb2e92..b6637e5205 100644
--- a/sysdeps/unix/sysv/linux/bits/sigaction.h
+++ b/sysdeps/unix/sysv/linux/bits/sigaction.h
@@ -25,7 +25,16 @@
 struct sigaction
   {
     /* Signal handler.  */
-    __sighandler_t sa_handler;
+    union
+      {
+	/* Used if SA_SIGINFO is not set.  */
+	__sighandler_t sa_handler;
+	/* Used if SA_SIGINFO is set.  */
+	void (*sa_sigaction) __P ((int, siginfo_t *, void *));
+      }
+    __sigaction_handler;
+#define sa_handler	__sigaction_handler.sa_handler
+#define sa_sigaction	__sigaction_handler.sa_sigaction
 
     /* Additional set of signals to be blocked.  */
     __sigset_t sa_mask;
@@ -39,17 +48,22 @@ struct sigaction
 
 /* Bits in `sa_flags'.  */
 #define	SA_NOCLDSTOP  1		 /* Don't send SIGCHLD when children stop.  */
-#ifdef __USE_MISC
-# define SA_STACK     0x08000000 /* Use signal stack by using `sa_restorer'. */
+#define SA_SIGINFO    4		 /* Invoke signal-catching function with
+				    three arguments instead of one.  */
+#if defined __USE_UNIX98 || defined __USE_MISC
+# define SA_ONSTACK   0x08000000 /* Use signal stack by using `sa_restorer'. */
 # define SA_RESTART   0x10000000 /* Restart syscall on signal return.  */
-# define SA_INTERRUPT 0x20000000 /* Historical no-op.  */
 # define SA_NODEFER   0x40000000 /* Don't automatically block the signal when
 				    its handler is being executed.  */
 # define SA_RESETHAND 0x80000000 /* Reset to SIG_DFL on entry to handler.  */
+#endif
+#ifdef __USE_MISC
+# define SA_INTERRUPT 0x20000000 /* Historical no-op.  */
 
 /* Some aliases for the SA_ constants.  */
 # define SA_NOMASK    SA_NODEFER
 # define SA_ONESHOT   SA_RESETHAND
+# define SA_STACK     SA_ONSTACK
 #endif
 
 /* Values for the HOW argument to `sigprocmask'.  */
diff --git a/sysdeps/unix/sysv/linux/bits/siginfo.h b/sysdeps/unix/sysv/linux/bits/siginfo.h
new file mode 100644
index 0000000000..42030abc4f
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/bits/siginfo.h
@@ -0,0 +1,257 @@
+/* siginfo_t, sigevent and constants.  Linux version.
+   Copyright (C) 1997 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
+   modify it under the terms of the GNU Library General Public License as
+   published by the Free Software Foundation; either version 2 of the
+   License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Library General Public License for more details.
+
+   You should have received a copy of the GNU Library General Public
+   License along with the GNU C Library; see the file COPYING.LIB.  If not,
+   write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef _SIGNAL_H
+# error "Never include this file directly.  Use <signal.h> instead"
+#endif
+
+#define SI_MAX_SIZE     128
+#define SI_PAD_SIZE     ((SI_MAX_SIZE / sizeof (int)) - 3)
+
+typedef struct siginfo
+  {
+    int si_signo;		/* Signal number.  */
+    int si_errno;		/* If non-zero, an errno value associated with
+				   this signal, as defined in <errno.h>.  */
+    int si_code;		/* Signal code.  */
+
+    union
+      {
+	int _pad[SI_PAD_SIZE];
+
+	 /* kill().  */
+	struct
+	  {
+	    __pid_t si_pid;	/* Sending process ID.  */
+	    __uid_t si_uid;	/* Real user ID of sending process.  */
+	  } _kill;
+
+	/* POSIX.1b timers.  */
+	struct
+	  {
+	    unsigned int _timer1;
+	    unsigned int _timer2;
+	  } _timer;
+
+	/* POSIX.1b signals.  */
+	struct
+	  {
+	    __pid_t si_pid;	/* Sending process ID.  */
+	    __uid_t si_uid;	/* Real user ID of sending process.  */
+	    sigval_t si_sigval;	/* Signal value.  */
+	  } _rt;
+
+	/* SIGCHLD.  */
+	struct
+	  {
+	    __pid_t si_pid;	/* Which child.  */
+	    int si_status;	/* Exit value or signal.  */
+	    __clock_t si_utime;
+	    __clock_t si_stime;
+	  } _sigchld;
+
+	/* SIGILL, SIGFPE, SIGSEGV, SIGBUS.  */
+	struct
+	  {
+	    void *si_addr;	/* Faulting insn/memory ref.  */
+	  } _sigfault;
+
+	/* SIGPOLL.  */
+	struct
+	  {
+	    int si_band;	/* Band event for SIGPOLL.  */
+	    int si_fd;
+	  } _sigpoll;
+      } _sifields;
+  } siginfo_t;
+
+
+/* X/Open requires some more fields with fixed names.  */
+#define si_pid		_sifields._kill.si_pid
+#define si_uid		_sifields._kill.si_uid
+#define si_status	_sifields._sigchld.si_status
+#define si_utime	_sifields._sigchld.si_utime
+#define si_stime	_sifields._sigchld.si_stime
+#define si_value	_sifields._rt.si_sigval
+#define si_int		_sifields._rt.si_sigval.sival_int
+#define si_ptr		_sifields._rt.si_sigval.sival_ptr
+#define si_addr		_sifields._sigfault.si_addr
+#define si_band		_sifields._sigpoll.si_band
+#define si_fd		_sifields._sigpoll.si_fd
+
+
+/* Values for `si_code'.  Positive values are reserved for kernel-generated
+   signals.  */
+enum
+{
+  SI_ASYNCIO = -4,		/* Sent by AIO completion.  */
+#define SI_ASYNCIO	SI_ASYNCIO
+  SI_MESGQ,			/* Sent by real time mesq state change.  */
+#define SI_MESGQ	SI_MESGQ
+  SI_TIMER,			/* Sent by timer expiration.  */
+#define SI_TIMER	SI_TIMER
+  SI_QUEUE,			/* Sent by sigqueue.  */
+#define SI_QUEUE	SI_QUEUE
+  SI_USER			/* Sent by kill, sigsend, raise.  */
+#define SI_USER		SI_USER
+};
+
+
+/* `si_code' values for SIGILL signal.  */
+enum
+{
+  ILL_ILLOPC = 1,		/* Illegal opcode.  */
+#define ILL_ILLOPC	ILL_ILLOPC
+  ILL_ILL_OPN,			/* Illegal operand.  */
+#define ILL_ILLOPN	ILL_ILLOPN
+  ILL_ILLADR,			/* Illegal addressing mode.  */
+#define ILL_ILLADR	ILL_ILLADR
+  ILL_ILLTRP,			/* Illegal trap. */
+#define ILL_ILLTRP	ILL_ILLTRP
+  ILL_PRVOPC,			/* Privileged opcode.  */
+#define ILL_PRVOPC	ILL_PRVOPC
+  ILL_PRVREG,			/* Privileged register.  */
+#define ILL_PRVREG	ILL_PRVREG
+  ILL_COPROC,			/* Coprocessor error.  */
+#define ILL_COPROC	ILL_COPROC
+  ILL_BADSTK			/* Internal stack error.  */
+#define ILL_BADSTK	ILL_BADSTK
+};
+
+/* `si_code' values for SIGFPE signal.  */
+enum
+{
+  FPE_INTDIV = 1,		/* Integer divide by zero.  */
+#define FPE_INTDIV	FPE_INTDIV
+  FPE_INTOVF,			/* Integer overflow.  */
+#define FPE_INTOVF	FPE_INTOVF
+  FPE_FLTDIV,			/* Floating point divide by zero.  */
+#define FPE_FLTDIV	FPE_FLTDIV
+  FPE_FLTOVF,			/* Floating point overflow.  */
+#define FPE_FLTOVF	FPE_FLTOVF
+  FPE_FLTUND,			/* Floating point underflow.  */
+#define FPE_FLTUND	FPE_FLTUND
+  FPE_FLTRES,			/* Floating point inexact result.  */
+#define FPE_FLTRES	FPE_FLTRES
+  FPE_FLTINV,			/* Floating point invalid operation.  */
+#define FPE_FLTINV	FPE_FLTINV
+  FPE_FLTSUB			/* Subscript out of range.  */
+#define FPE_FLTSUB	FPE_FLTSUB
+};
+
+/* `si_code' values for SIGSEGV signal.  */
+enum
+{
+  SEGV_MAPERR = 1,		/* Address not mapped to object.  */
+#define SEGV_MAPERR	SEGV_MAPERR
+  SEGV_ACCERR			/* Invalid permissions for mapped object.  */
+#define SEGV_ACCERR	SEGV_ACCERR
+};
+
+/* `si_code' values for SIGBUS signal.  */
+enum
+{
+  BUS_ADRALN = 1,		/* Invalid address alignment.  */
+#define BUS_ADRALN	BUS_ADRALN
+  BUS_ADRERR,			/* Non-existant physical address.  */
+#define BUS_ADRERR	BUS_ADRERR
+  BUS_OBJERR			/* Object specific hardware error.  */
+#define BUS_OBJERR	BUS_OBJERR
+};
+
+/* `si_code' values for SIGTRAP signal.  */
+enum
+{
+  TRAP_BRKPT = 1,		/* Process breakpoint.  */
+#define TRAP_BRKPT	TRAP_BRKPT
+  TRAP_TRACE			/* Process trace trap.  */
+#define TRAP_TRACE	TRAP_TRACE
+};
+
+/* `si_code' values for SIGCHLD signal.  */
+enum
+{
+  CLD_EXITED = 1,		/* Child has exited.  */
+#define CLD_EXITED	CLD_EXITED
+  CLD_KILLED,			/* Child was killed.  */
+#define CLD_KILLED	CLD_KILLED
+  CLD_DUMPED,			/* Child terminated abnormally.  */
+#define CLD_DUMPED	CLD_DUMPED
+  CLD_TRAPPED,			/* Traced child has trapped.  */
+#define CLD_TRAPPED	CLD_TRAPPED
+  CLD_STOPPED,			/* Child has stopped.  */
+#define CLD_STOPPED	CLD_STOPPED
+  CLD_CONTINUED			/* Stopped child has continued.  */
+#define CLD_CONTINUED	CLD_CONTINUED
+};
+
+/* `si_code' values for SIGPOLL signal.  */
+enum
+{
+  POLL_IN = 1,			/* Data input available.  */
+#define POLL_IN		POLL_IN
+  POLL_OUT,			/* Output buffers available.  */
+#define POLL_OUT	POLL_OUT
+  POLL_MSG,			/* Input message available.   */
+#define POLL_MSG	POLL_MSG
+  POLL_ERR,			/* I/O error.  */
+#define POLL_ERR	POLL_ERR
+  POLL_PRI,			/* High priority input available.  */
+#define POLL_PRI	POLL_PRI
+  POLL_HUP			/* Device disconnected.  */
+#define POLL_HUP	POLL_HUP
+};
+
+
+/* Structure to transport application-defined values with signals.  */
+#define SIGEV_MAX_SIZE	64
+#define SIGEV_PAD_SIZE	((SIGEV_MAX_SIZE / sizeof (int)) - 3)
+
+typedef struct sigevent
+  {
+    sigval_t sigev_value;
+    int sigev_signo;
+    int sigev_notify;
+
+    union
+      {
+	int _pad[SIGEV_PAD_SIZE];
+
+	struct
+	  {
+	    void (*_function) __P ((sigval_t));	/* Function to start.  */
+	    void *_attribute;			/* Really pthread_attr_t.  */
+	  } _sigev_thread;
+      } _sigev_un;
+  } sigevent_t;
+
+/* POSIX names to access some of the members.  */
+#define sigev_notify_function   _sigev_un._sigev_thread._function
+#define sigev_notify_attributes _sigev_un._sigev_thread._attribute
+
+/* `sigev_notify' values.  */
+enum
+{
+  SIGEV_SIGNAL = 0,		/* Notify via signal.  */
+#define SIGEV_SIGNAL	SIGEV_SIGNAL
+  SIGEV_NONE,			/* Other notification: meaningless.  */
+#define SIGEV_NONE	SIGEV_NONE
+  SIGEV_THREAD			/* Deliver via thread creation.  */
+#define SIGEV_THREAD	SIGEV_THREAD
+};
diff --git a/sysdeps/unix/sysv/linux/bits/signum.h b/sysdeps/unix/sysv/linux/bits/signum.h
index d8a716f2e0..f625f468e9 100644
--- a/sysdeps/unix/sysv/linux/bits/signum.h
+++ b/sysdeps/unix/sysv/linux/bits/signum.h
@@ -1,5 +1,5 @@
 /* Signal number definitions.  Linux version.
-   Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+   Copyright (C) 1995, 1996, 1997 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
@@ -20,9 +20,9 @@
 #ifdef	_SIGNAL_H
 
 /* Fake signal functions.  */
-#define SIG_ERR ((__sighandler_t) -1) /* Error return.  */
-#define SIG_DFL ((__sighandler_t) 0) /* Default action.  */
-#define SIG_IGN ((__sighandler_t) 1) /* Ignore signal.  */
+#define SIG_ERR	((__sighandler_t) -1)		/* Error return.  */
+#define SIG_DFL	((__sighandler_t) 0)		/* Default action.  */
+#define SIG_IGN	((__sighandler_t) 1)		/* Ignore signal.  */
 
 
 /* Signals.  */
@@ -42,7 +42,7 @@
 #define	SIGPIPE		13	/* Broken pipe (POSIX).  */
 #define	SIGALRM		14	/* Alarm clock (POSIX).  */
 #define	SIGTERM		15	/* Termination (ANSI).  */
-#define	SIGSTKFLT	16	/* ??? */
+#define	SIGSTKFLT	16	/* Stack fault.  */
 #define	SIGCLD		SIGCHLD	/* Same as SIGCHLD (System V).  */
 #define	SIGCHLD		17	/* Child status has changed (POSIX).  */
 #define	SIGCONT		18	/* Continue (POSIX).  */
@@ -61,6 +61,15 @@
 #define	SIGPWR		30	/* Power failure restart (System V).  */
 #define SIGUNUSED	31
 
-#define	_NSIG		32	/* Biggest signal number + 1.  */
+#define	_NSIG		64	/* Biggest signal number + 1
+				   (including real-time signals).  */
+
+#define SIGRTMIN        (__libc_current_sigrtmin ())
+#define SIGRTMAX        (__libc_current_sigrtmax ())
+
+/* These are the hard limits of the kernel.  These values should not be
+   used directly at user level.  */
+#define __SIGRTMIN	32
+#define __SIGRTMAX	(_NSIG - 1)
 
 #endif	/* <signal.h> included.  */
diff --git a/sysdeps/unix/sysv/linux/bits/sigset.h b/sysdeps/unix/sysv/linux/bits/sigset.h
index 741ff9ac9d..14f30cbfd8 100644
--- a/sysdeps/unix/sysv/linux/bits/sigset.h
+++ b/sysdeps/unix/sysv/linux/bits/sigset.h
@@ -18,13 +18,13 @@
    Boston, MA 02111-1307, USA.  */
 
 #ifndef	_SIGSET_H_types
-#define	_SIGSET_H_types	1
+# define _SIGSET_H_types	1
 
 typedef int __sig_atomic_t;
 
 /* A `sigset_t' has a bit for each signal.  */
 
-#define _SIGSET_NWORDS	(1024 / (8 * sizeof (unsigned long int)))
+# define _SIGSET_NWORDS	(1024 / (8 * sizeof (unsigned long int)))
 typedef struct
   {
     unsigned long int __val[_SIGSET_NWORDS];
@@ -39,44 +39,44 @@ typedef struct
    trouble can be caused by functions being defined (e.g., any global
    register vars declared later will cause compilation errors).  */
 
-#if !defined (_SIGSET_H_fns) && defined (_SIGNAL_H)
-#define _SIGSET_H_fns 1
+#if !defined _SIGSET_H_fns && defined _SIGNAL_H
+# define _SIGSET_H_fns 1
 
-#ifndef _EXTERN_INLINE
-#define _EXTERN_INLINE extern __inline
-#endif
+# ifndef _EXTERN_INLINE
+#  define _EXTERN_INLINE extern __inline
+# endif
 
 /* Return a mask that includes the bit for SIG only.  */
-#define __sigmask(sig) \
-  (((unsigned long) 1) << (((sig) - 1) % (8 * sizeof (unsigned long int))))
+# define __sigmask(sig) \
+  (((unsigned long int) 1) << (((sig) - 1) % (8 * sizeof (unsigned long int))))
 
 /* Return the word index for SIG.  */
-#define __sigword(sig)	(((sig) - 1) / (8 * sizeof (unsigned long int)))
+# define __sigword(sig)	(((sig) - 1) / (8 * sizeof (unsigned long int)))
 
-#if defined __GNUC__ && __GNUC__ >= 2
-# define __sigemptyset(set) \
+# if defined __GNUC__ && __GNUC__ >= 2
+#  define __sigemptyset(set) \
   (__extension__ ({ int __cnt = _SIGSET_NWORDS;				      \
 		    sigset_t *__set = (set);				      \
 		    while (--__cnt >= 0) __set->__val[__cnt] = 0;	      \
 		    0; }))
-# define __sigfillset(set) \
+#  define __sigfillset(set) \
   (__extension__ ({ int __cnt = _SIGSET_NWORDS;				      \
 		    sigset_t *__set = (set);				      \
 		    while (--__cnt >= 0) __set->__val[__cnt] = ~0UL;	      \
 		    0; }))
 
-# ifdef _GNU_SOURCE
+#  ifdef __USE_GNU
 /* The POSIX does not specify for handling the whole signal set in one
    command.  This is often wanted and so we define three more functions
    here.  */
-# define __sigisemptyset(set) \
+#   define __sigisemptyset(set) \
   (__extension__ ({ int __cnt = _SIGSET_NWORDS;				      \
 		    const sigset_t *__set = (set);			      \
 		    int __ret = __set->__val[--__cnt];			      \
 		    while (!__ret && --__cnt >= 0)			      \
 			__ret = __set->__val[__cnt];			      \
 		    __ret == 0; }))
-# define __sigandset(dest, left, right) \
+#   define __sigandset(dest, left, right) \
   (__extension__ ({ int __cnt = _SIGSET_NWORDS;				      \
 		    sigset_t *__dest = (dest);				      \
 		    const sigset_t *__left = (left);			      \
@@ -85,7 +85,7 @@ typedef struct
 		      __dest->__val[__cnt] = (__left->__val[__cnt]	      \
 					      & __right->__val[__cnt]);	      \
 		    0; }))
-# define __sigorset(dest, left, right) \
+#   define __sigorset(dest, left, right) \
   (__extension__ ({ int __cnt = _SIGSET_NWORDS;				      \
 		    sigset_t *__dest = (dest);				      \
 		    const sigset_t *__left = (left);			      \
@@ -94,8 +94,8 @@ typedef struct
 		      __dest->__val[__cnt] = (__left->__val[__cnt]	      \
 					      | __right->__val[__cnt]);	      \
 		    0; }))
+#  endif
 # endif
-#endif
 
 /* These functions needn't check for a bogus signal number -- error
    checking is done in the non __ versions.  */
@@ -104,7 +104,7 @@ extern int __sigismember (__const __sigset_t *, int);
 extern int __sigaddset (__sigset_t *, int);
 extern int __sigdelset (__sigset_t *, int);
 
-#define __SIGSETFN(NAME, BODY, CONST)					      \
+# define __SIGSETFN(NAME, BODY, CONST)					      \
   _EXTERN_INLINE int							      \
   NAME (CONST __sigset_t *__set, int __sig)				      \
   {									      \