/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
- *
- * The contents of this file constitute Original Code as defined in and
- * are subject to the Apple Public Source License Version 1.1 (the
- * "License"). You may not use this file except in compliance with the
- * License. Please obtain a copy of the License at
- * http://www.apple.com/publicsource and read it before using this file.
- *
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
+ *
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ *
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
+ *
+ * The Original Code and all software distributed under the License are
+ * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
- * License for the specific language governing rights and limitations
- * under the License.
- *
- * @APPLE_LICENSE_HEADER_END@
+ * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ *
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*
* @(#)signal.h 8.2 (Berkeley) 1/21/94
*/
-#ifndef _SYS_SIGNAL_H_
-#define _SYS_SIGNAL_H_
+#ifndef _SYS_SIGNAL_H_
+#define _SYS_SIGNAL_H_
-#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
-#define NSIG 32 /* counting 0; could be 33 (mask is 1-32) */
-#endif
+#include <sys/cdefs.h>
+#include <sys/appleapiopts.h>
+#include <Availability.h>
-#include <machine/signal.h> /* sigcontext; codes for SIGILL, SIGFPE */
+#define __DARWIN_NSIG 32 /* counting 0; could be 33 (mask is 1-32) */
-#define SIGHUP 1 /* hangup */
-#define SIGINT 2 /* interrupt */
-#define SIGQUIT 3 /* quit */
-#define SIGILL 4 /* illegal instruction (not reset when caught) */
-#if !defined(_POSIX_SOURCE)
-#define SIGTRAP 5 /* trace trap (not reset when caught) */
-#endif
-#define SIGABRT 6 /* abort() */
-#if !defined(_POSIX_SOURCE)
-#define SIGIOT SIGABRT /* compatibility */
-#define SIGEMT 7 /* EMT instruction */
+#if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
+#define NSIG __DARWIN_NSIG
#endif
-#define SIGFPE 8 /* floating point exception */
-#define SIGKILL 9 /* kill (cannot be caught or ignored) */
-#if !defined(_POSIX_SOURCE)
-#define SIGBUS 10 /* bus error */
-#endif
-#define SIGSEGV 11 /* segmentation violation */
-#if !defined(_POSIX_SOURCE)
-#define SIGSYS 12 /* bad argument to system call */
-#endif
-#define SIGPIPE 13 /* write on a pipe with no one to read it */
-#define SIGALRM 14 /* alarm clock */
-#define SIGTERM 15 /* software termination signal from kill */
-#if !defined(_POSIX_SOURCE)
-#define SIGURG 16 /* urgent condition on IO channel */
+
+#include <machine/signal.h> /* sigcontext; codes for SIGILL, SIGFPE */
+
+#define SIGHUP 1 /* hangup */
+#define SIGINT 2 /* interrupt */
+#define SIGQUIT 3 /* quit */
+#define SIGILL 4 /* illegal instruction (not reset when caught) */
+#define SIGTRAP 5 /* trace trap (not reset when caught) */
+#define SIGABRT 6 /* abort() */
+#if (defined(_POSIX_C_SOURCE) && !defined(_DARWIN_C_SOURCE))
+#define SIGPOLL 7 /* pollable event ([XSR] generated, not supported) */
+#else /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
+#define SIGIOT SIGABRT /* compatibility */
+#define SIGEMT 7 /* EMT instruction */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
+#define SIGFPE 8 /* floating point exception */
+#define SIGKILL 9 /* kill (cannot be caught or ignored) */
+#define SIGBUS 10 /* bus error */
+#define SIGSEGV 11 /* segmentation violation */
+#define SIGSYS 12 /* bad argument to system call */
+#define SIGPIPE 13 /* write on a pipe with no one to read it */
+#define SIGALRM 14 /* alarm clock */
+#define SIGTERM 15 /* software termination signal from kill */
+#define SIGURG 16 /* urgent condition on IO channel */
+#define SIGSTOP 17 /* sendable stop signal not from tty */
+#define SIGTSTP 18 /* stop signal from tty */
+#define SIGCONT 19 /* continue a stopped process */
+#define SIGCHLD 20 /* to parent on child stop or exit */
+#define SIGTTIN 21 /* to readers pgrp upon background tty read */
+#define SIGTTOU 22 /* like TTIN for output if (tp->t_local<OSTOP) */
+#if (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
+#define SIGIO 23 /* input/output possible signal */
#endif
-#define SIGSTOP 17 /* sendable stop signal not from tty */
-#define SIGTSTP 18 /* stop signal from tty */
-#define SIGCONT 19 /* continue a stopped process */
-#define SIGCHLD 20 /* to parent on child stop or exit */
-#define SIGTTIN 21 /* to readers pgrp upon background tty read */
-#define SIGTTOU 22 /* like TTIN for output if (tp->t_local<OSTOP) */
-#if !defined(_POSIX_SOURCE)
-#define SIGIO 23 /* input/output possible signal */
-#define SIGXCPU 24 /* exceeded CPU time limit */
-#define SIGXFSZ 25 /* exceeded file size limit */
-#define SIGVTALRM 26 /* virtual time alarm */
-#define SIGPROF 27 /* profiling time alarm */
-#define SIGWINCH 28 /* window size changes */
-#define SIGINFO 29 /* information request */
+#define SIGXCPU 24 /* exceeded CPU time limit */
+#define SIGXFSZ 25 /* exceeded file size limit */
+#define SIGVTALRM 26 /* virtual time alarm */
+#define SIGPROF 27 /* profiling time alarm */
+#if (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE))
+#define SIGWINCH 28 /* window size changes */
+#define SIGINFO 29 /* information request */
#endif
-#define SIGUSR1 30 /* user defined signal 1 */
-#define SIGUSR2 31 /* user defined signal 2 */
+#define SIGUSR1 30 /* user defined signal 1 */
+#define SIGUSR2 31 /* user defined signal 2 */
-#if defined(_ANSI_SOURCE) || defined(__cplusplus)
+#if defined(_ANSI_SOURCE) || __DARWIN_UNIX03 || defined(__cplusplus)
/*
* Language spec sez we must list exactly one parameter, even though we
* actually supply three. Ugh!
+ * SIG_HOLD is chosen to avoid KERN_SIG_* values in <sys/signalvar.h>
*/
-#define SIG_DFL (void (*)(int))0
-#define SIG_IGN (void (*)(int))1
-#define SIG_ERR (void (*)(int))-1
+#define SIG_DFL (void (*)(int))0
+#define SIG_IGN (void (*)(int))1
+#define SIG_HOLD (void (*)(int))5
+#define SIG_ERR ((void (*)(int))-1)
#else
-#define SIG_DFL (void (*)())0
-#define SIG_IGN (void (*)())1
-#define SIG_ERR (void (*)())-1
+/* DO NOT REMOVE THE COMMENTED OUT int: fixincludes needs to see them */
+#define SIG_DFL (void (*)( /*int*/ ))0
+#define SIG_IGN (void (*)( /*int*/ ))1
+#define SIG_HOLD (void (*)( /*int*/ ))5
+#define SIG_ERR ((void (*)( /*int*/ ))-1)
#endif
#ifndef _ANSI_SOURCE
-typedef unsigned int sigset_t;
+#include <sys/_types.h>
+
+#include <machine/_mcontext.h>
+
+#ifndef KERNEL
+#include <sys/_pthread/_pthread_attr_t.h>
+#endif /* KERNEL */
+
+#include <sys/_types/_sigaltstack.h>
+#include <sys/_types/_ucontext.h>
+
+#include <sys/_types/_pid_t.h>
+#include <sys/_types/_sigset_t.h>
+#include <sys/_types/_size_t.h>
+#include <sys/_types/_uid_t.h>
+
+union sigval {
+ /* Members as suggested by Annex C of POSIX 1003.1b. */
+ int sival_int;
+ void *sival_ptr;
+};
+
+#define SIGEV_NONE 0 /* No async notification */
+#define SIGEV_SIGNAL 1 /* aio - completion notification */
+#define SIGEV_THREAD 3 /* [NOTIMP] [RTS] call notification function */
+
+#ifndef KERNEL
+struct sigevent {
+ int sigev_notify; /* Notification type */
+ int sigev_signo; /* Signal number */
+ union sigval sigev_value; /* Signal value */
+ void (*sigev_notify_function)(union sigval); /* Notification function */
+ pthread_attr_t *sigev_notify_attributes; /* Notification attributes */
+};
+#endif /* KERNEL */
+
+#ifdef BSD_KERNEL_PRIVATE
+
+union user64_sigval {
+ struct {
+ uint32_t pad; /* assumes Motorola byte order */
+ int32_t sival_int;
+ } size_equivalent;
+ user64_addr_t sival_ptr;
+};
+
+union user32_sigval {
+ /* Members as suggested by Annex C of POSIX 1003.1b. */
+ int32_t sival_int;
+ user32_addr_t sival_ptr;
+};
+
+union user_sigval {
+ struct {
+ uint32_t pad; /* assumes Motorola byte order */
+ int32_t sival_int;
+ } size_equivalent;
+ user_addr_t sival_ptr;
+};
+
+struct user64_sigevent {
+ int sigev_notify; /* Notification type */
+ int sigev_signo; /* Signal number */
+ union user64_sigval sigev_value; /* Signal value */
+ user64_addr_t sigev_notify_function; /* Notify function */
+ user64_addr_t sigev_notify_attributes; /* Notify attributes */
+};
+
+struct user32_sigevent {
+ int sigev_notify; /* Notification type */
+ int sigev_signo; /* Signal number */
+ union user32_sigval sigev_value; /* Signal value */
+ user32_addr_t sigev_notify_function; /* Notify function */
+ user32_addr_t sigev_notify_attributes; /* Notify attributes */
+};
+
+struct user_sigevent {
+ int sigev_notify; /* Notification type */
+ int sigev_signo; /* Signal number */
+ union user_sigval sigev_value; /* Signal value */
+ user_addr_t sigev_notify_function; /* Notify function */
+ user_addr_t sigev_notify_attributes; /* Notify attributes */
+};
+
+#endif /* BSD_KERNEL_PRIVATE */
+
+typedef struct __siginfo {
+ int si_signo; /* signal number */
+ int si_errno; /* errno association */
+ int si_code; /* signal code */
+ pid_t si_pid; /* sending process */
+ uid_t si_uid; /* sender's ruid */
+ int si_status; /* exit value */
+ void *si_addr; /* faulting instruction */
+ union sigval si_value; /* signal value */
+ long si_band; /* band event for SIGPOLL */
+ unsigned long __pad[7]; /* Reserved for Future Use */
+} siginfo_t;
+
+#ifdef BSD_KERNEL_PRIVATE
+
+typedef struct user_siginfo {
+ int si_signo; /* signal number */
+ int si_errno; /* errno association */
+ int si_code; /* signal code */
+ pid_t si_pid; /* sending process */
+ uid_t si_uid; /* sender's ruid */
+ int si_status; /* exit value */
+ user_addr_t si_addr; /* faulting instruction (see below) */
+ union user_sigval si_value; /* signal value */
+ user_long_t si_band; /* band event for SIGPOLL */
+ user_ulong_t pad[7]; /* Reserved for Future Use */
+} user_siginfo_t;
+
+typedef struct user64_siginfo {
+ int si_signo; /* signal number */
+ int si_errno; /* errno association */
+ int si_code; /* signal code */
+ pid_t si_pid; /* sending process */
+ uid_t si_uid; /* sender's ruid */
+ int si_status; /* exit value */
+ user64_addr_t si_addr; /* faulting instruction (see below) */
+ union user64_sigval si_value; /* signal value */
+ user64_long_t si_band; /* band event for SIGPOLL */
+ user64_ulong_t __pad[7]; /* Reserved for Future Use */
+} user64_siginfo_t;
+
+typedef struct user32_siginfo {
+ int si_signo; /* signal number */
+ int si_errno; /* errno association */
+ int si_code; /* signal code */
+ pid_t si_pid; /* sending process */
+ uid_t si_uid; /* sender's ruid */
+ int si_status; /* exit value */
+ user32_addr_t si_addr; /* faulting instruction (see below) */
+ union user32_sigval si_value; /* signal value */
+ user32_long_t si_band; /* band event for SIGPOLL */
+ user32_ulong_t __pad[7]; /* Reserved for Future Use */
+} user32_siginfo_t;
+
+void siginfo_user_to_user32(user_siginfo_t *, user32_siginfo_t *);
+void siginfo_user_to_user64(user_siginfo_t *, user64_siginfo_t *);
+
+#endif /* BSD_KERNEL_PRIVATE */
/*
- * Signal vector "template" used in sigaction call.
+ * When the signal is SIGILL or SIGFPE, si_addr contains the address of
+ * the faulting instruction.
+ * When the signal is SIGSEGV or SIGBUS, si_addr contains the address of
+ * the faulting memory reference. Although for x86 there are cases of SIGSEGV
+ * for which si_addr cannot be determined and is NULL.
+ * If the signal is SIGCHLD, the si_pid field will contain the child process ID,
+ * si_status contains the exit value or signal and
+ * si_uid contains the real user ID of the process that sent the signal.
*/
-struct sigaction {
-#if defined(__cplusplus)
- void (*sa_handler)(int); /* signal handler */
-#else
- void (*sa_handler)(); /* signal handler */
-#endif /* __cplusplus */
- sigset_t sa_mask; /* signal mask to apply */
- int sa_flags; /* see signal options below */
-};
-#if !defined(_POSIX_SOURCE)
-#define SA_ONSTACK 0x0001 /* take signal on signal stack */
-#define SA_RESTART 0x0002 /* restart system on signal return */
-#define SA_DISABLE 0x0004 /* disable taking signals on alternate stack */
-#define SA_USERTRAMP 0x0100 /* do not bounce off kernel's sigtramp */
+
+/* Values for si_code */
+
+/* Codes for SIGILL */
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+#define ILL_NOOP 0 /* if only I knew... */
+#endif
+#define ILL_ILLOPC 1 /* [XSI] illegal opcode */
+#define ILL_ILLTRP 2 /* [XSI] illegal trap */
+#define ILL_PRVOPC 3 /* [XSI] privileged opcode */
+#define ILL_ILLOPN 4 /* [XSI] illegal operand -NOTIMP */
+#define ILL_ILLADR 5 /* [XSI] illegal addressing mode -NOTIMP */
+#define ILL_PRVREG 6 /* [XSI] privileged register -NOTIMP */
+#define ILL_COPROC 7 /* [XSI] coprocessor error -NOTIMP */
+#define ILL_BADSTK 8 /* [XSI] internal stack error -NOTIMP */
+
+/* Codes for SIGFPE */
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+#define FPE_NOOP 0 /* if only I knew... */
+#endif
+#define FPE_FLTDIV 1 /* [XSI] floating point divide by zero */
+#define FPE_FLTOVF 2 /* [XSI] floating point overflow */
+#define FPE_FLTUND 3 /* [XSI] floating point underflow */
+#define FPE_FLTRES 4 /* [XSI] floating point inexact result */
+#define FPE_FLTINV 5 /* [XSI] invalid floating point operation */
+#define FPE_FLTSUB 6 /* [XSI] subscript out of range -NOTIMP */
+#define FPE_INTDIV 7 /* [XSI] integer divide by zero */
+#define FPE_INTOVF 8 /* [XSI] integer overflow */
+
+/* Codes for SIGSEGV */
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+#define SEGV_NOOP 0 /* if only I knew... */
+#endif
+#define SEGV_MAPERR 1 /* [XSI] address not mapped to object */
+#define SEGV_ACCERR 2 /* [XSI] invalid permission for mapped object */
+
+/* Codes for SIGBUS */
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+#define BUS_NOOP 0 /* if only I knew... */
+#endif
+#define BUS_ADRALN 1 /* [XSI] Invalid address alignment */
+#define BUS_ADRERR 2 /* [XSI] Nonexistent physical address -NOTIMP */
+#define BUS_OBJERR 3 /* [XSI] Object-specific HW error - NOTIMP */
+
+/* Codes for SIGTRAP */
+#define TRAP_BRKPT 1 /* [XSI] Process breakpoint -NOTIMP */
+#define TRAP_TRACE 2 /* [XSI] Process trace trap -NOTIMP */
+
+/* Codes for SIGCHLD */
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+#define CLD_NOOP 0 /* if only I knew... */
#endif
-#define SA_NOCLDSTOP 0x0008 /* do not generate SIGCHLD on child stop */
+#define CLD_EXITED 1 /* [XSI] child has exited */
+#define CLD_KILLED 2 /* [XSI] terminated abnormally, no core file */
+#define CLD_DUMPED 3 /* [XSI] terminated abnormally, core file */
+#define CLD_TRAPPED 4 /* [XSI] traced child has trapped */
+#define CLD_STOPPED 5 /* [XSI] child has stopped */
+#define CLD_CONTINUED 6 /* [XSI] stopped child has continued */
+
+/* Codes for SIGPOLL */
+#define POLL_IN 1 /* [XSR] Data input available */
+#define POLL_OUT 2 /* [XSR] Output buffers available */
+#define POLL_MSG 3 /* [XSR] Input message available */
+#define POLL_ERR 4 /* [XSR] I/O error */
+#define POLL_PRI 5 /* [XSR] High priority input available */
+#define POLL_HUP 6 /* [XSR] Device disconnected */
+
+/* union for signal handlers */
+union __sigaction_u {
+ void (*__sa_handler)(int);
+ void (*__sa_sigaction)(int, struct __siginfo *,
+ void *);
+};
+
+/* Signal vector template for Kernel user boundary */
+struct __sigaction {
+ union __sigaction_u __sigaction_u; /* signal handler */
+ void (*sa_tramp)(void *, int, int, siginfo_t *, void *);
+ sigset_t sa_mask; /* signal mask to apply */
+ int sa_flags; /* see signal options below */
+};
+
+/*
+ * Signal vector "template" used in sigaction call.
+ */
+struct sigaction {
+ union __sigaction_u __sigaction_u; /* signal handler */
+ sigset_t sa_mask; /* signal mask to apply */
+ int sa_flags; /* see signal options below */
+};
+
+#ifdef BSD_KERNEL_PRIVATE
+#include <machine/types.h>
+
+union __user32_sigaction_u {
+ user32_addr_t __sa_handler;
+ user32_addr_t __sa_sigaction;
+};
+
+struct user32_sigaction {
+ union __user32_sigaction_u __sigaction_u; /* signal handler */
+ sigset_t sa_mask; /* signal mask to apply */
+ int sa_flags; /* see signal options below */
+};
+
+struct __user32_sigaction {
+ union __user32_sigaction_u __sigaction_u; /* signal handler */
+ user32_addr_t sa_tramp;
+ sigset_t sa_mask; /* signal mask to apply */
+ int sa_flags; /* see signal options below */
+};
+
+union __user64_sigaction_u {
+ user64_addr_t __sa_handler;
+ user64_addr_t __sa_sigaction;
+};
+
+struct user64_sigaction {
+ union __user64_sigaction_u __sigaction_u; /* signal handler */
+ sigset_t sa_mask; /* signal mask to apply */
+ int sa_flags; /* see signal options below */
+};
+
+struct __user64_sigaction {
+ union __user64_sigaction_u __sigaction_u; /* signal handler */
+ user64_addr_t sa_tramp; /* signal mask to apply */
+ sigset_t sa_mask; /* signal mask to apply */
+ int sa_flags; /* see signal options below */
+};
+
+union __kern_sigaction_u {
+ user_addr_t __sa_handler;
+ user_addr_t __sa_sigaction;
+};
+
+struct kern_sigaction {
+ union __kern_sigaction_u __sigaction_u; /* signal handler */
+ sigset_t sa_mask; /* signal mask to apply */
+ int sa_flags; /* see signal options below */
+};
+
+struct __kern_sigaction {
+ union __kern_sigaction_u __sigaction_u; /* signal handler */
+ user_addr_t sa_tramp; /* signal mask to apply */
+ sigset_t sa_mask; /* signal mask to apply */
+ int sa_flags; /* see signal options below */
+};
+
+#undef SIG_DFL
+#undef SIG_IGN
+#undef SIG_ERR
+#define SIG_DFL ((user_addr_t)0LL)
+#define SIG_IGN ((user_addr_t)1LL)
+#define SIG_ERR ((user_addr_t)-1LL)
+
+#endif /* BSD_KERNEL_PRIVATE */
+
+
+/* if SA_SIGINFO is set, sa_sigaction is to be used instead of sa_handler. */
+#define sa_handler __sigaction_u.__sa_handler
+#define sa_sigaction __sigaction_u.__sa_sigaction
+
+#define SA_ONSTACK 0x0001 /* take signal on signal stack */
+#define SA_RESTART 0x0002 /* restart system on signal return */
+#ifdef BSD_KERNEL_PRIVATE
+#define SA_DISABLE 0x0004 /* disable taking signals on alternate stack - for user_sigaltstack.ss_flags only */
+#endif /* BSD_KERNEL_PRIVATE */
+#define SA_RESETHAND 0x0004 /* reset to SIG_DFL when taking signal */
+#define SA_NOCLDSTOP 0x0008 /* do not generate SIGCHLD on child stop */
+#define SA_NODEFER 0x0010 /* don't mask the signal we're delivering */
+#define SA_NOCLDWAIT 0x0020 /* don't keep zombies around */
+#define SA_SIGINFO 0x0040 /* signal handler with SA_SIGINFO args */
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+#define SA_USERTRAMP 0x0100 /* do not bounce off kernel's sigtramp */
+/* This will provide 64bit register set in a 32bit user address space */
+#define SA_64REGSET 0x0200 /* signal handler with SA_SIGINFO args with 64bit regs information */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
+#ifdef BSD_KERNEL_PRIVATE
+#define SA_VALIDATE_SIGRETURN_FROM_SIGTRAMP 0x0400 /* use token to validate sigreturn was called from matching sigtramp */
+#endif /* BSD_KERNEL_PRIVATE */
+
+/* the following are the only bits we support from user space, the
+ * rest are for kernel use only.
+ */
+#define SA_USERSPACE_MASK (SA_ONSTACK | SA_RESTART | SA_RESETHAND | SA_NOCLDSTOP | SA_NODEFER | SA_NOCLDWAIT | SA_SIGINFO)
/*
* Flags for sigprocmask:
*/
-#define SIG_BLOCK 1 /* block specified signal set */
-#define SIG_UNBLOCK 2 /* unblock specified signal set */
-#define SIG_SETMASK 3 /* set specified signal set */
+#define SIG_BLOCK 1 /* block specified signal set */
+#define SIG_UNBLOCK 2 /* unblock specified signal set */
+#define SIG_SETMASK 3 /* set specified signal set */
-#if !defined(_POSIX_SOURCE)
-#include <sys/cdefs.h>
-typedef void (*sig_t) __P((int)); /* type of signal function */
+/* POSIX 1003.1b required values. */
+#define SI_USER 0x10001 /* [CX] signal from kill() */
+#define SI_QUEUE 0x10002 /* [CX] signal from sigqueue() */
+#define SI_TIMER 0x10003 /* [CX] timer expiration */
+#define SI_ASYNCIO 0x10004 /* [CX] aio request completion */
+#define SI_MESGQ 0x10005 /* [CX] from message arrival on empty queue */
+
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
+typedef void (*sig_t)(int); /* type of signal function */
+#endif
/*
* Structure used in sigaltstack call.
*/
-struct sigaltstack {
- char *ss_sp; /* signal stack base */
- int ss_size; /* signal stack length */
- int ss_flags; /* SA_DISABLE and/or SA_ONSTACK */
+#ifdef BSD_KERNEL_PRIVATE
+
+struct user32_sigaltstack {
+ user32_addr_t ss_sp; /* signal stack base */
+ user32_size_t ss_size; /* signal stack length */
+ int ss_flags; /* SA_DISABLE and/or SA_ONSTACK */
};
-#define MINSIGSTKSZ 8192 /* minimum allowable stack */
-#define SIGSTKSZ (MINSIGSTKSZ + 32768) /* recommended stack size */
+struct user64_sigaltstack {
+ user64_addr_t ss_sp; /* signal stack base */
+ user64_size_t ss_size; /* signal stack length */
+ int ss_flags; /* SA_DISABLE and/or SA_ONSTACK */
+};
+
+struct kern_sigaltstack {
+ user_addr_t ss_sp; /* signal stack base */
+ user_size_t ss_size; /* signal stack length */
+ int ss_flags; /* SA_DISABLE and/or SA_ONSTACK */
+};
+
+#endif /* BSD_KERNEL_PRIVATE */
+
+#define SS_ONSTACK 0x0001 /* take signal on signal stack */
+#define SS_DISABLE 0x0004 /* disable taking signals on alternate stack */
+#define MINSIGSTKSZ 32768 /* (32K)minimum allowable stack */
+#define SIGSTKSZ 131072 /* (128K)recommended stack size */
+
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
/*
* 4.3 compatibility:
* Signal vector "template" used in sigvec call.
*/
-struct sigvec {
- void (*sv_handler)(); /* signal handler */
- int sv_mask; /* signal mask to apply */
- int sv_flags; /* see signal options below */
+struct sigvec {
+ void (*sv_handler)(int); /* signal handler */
+ int sv_mask; /* signal mask to apply */
+ int sv_flags; /* see signal options below */
};
-#define SV_ONSTACK SA_ONSTACK
-#define SV_INTERRUPT SA_RESTART /* same bit, opposite sense */
-#define sv_onstack sv_flags /* isn't compatibility wonderful! */
+#define SV_ONSTACK SA_ONSTACK
+#define SV_INTERRUPT SA_RESTART /* same bit, opposite sense */
+#define SV_RESETHAND SA_RESETHAND
+#define SV_NODEFER SA_NODEFER
+#define SV_NOCLDSTOP SA_NOCLDSTOP
+#define SV_SIGINFO SA_SIGINFO
+
+#define sv_onstack sv_flags /* isn't compatibility wonderful! */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
/*
* Structure used in sigstack call.
*/
-struct sigstack {
- char *ss_sp; /* signal stack pointer */
- int ss_onstack; /* current status */
+struct sigstack {
+ char *ss_sp; /* signal stack pointer */
+ int ss_onstack; /* current status */
};
+#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
/*
* Macro for converting signal number to a mask suitable for
* sigblock().
*/
-#define sigmask(m) (1 << ((m)-1))
+#define sigmask(m) (1 << ((m)-1))
+
+#ifdef KERNEL_PRIVATE
+/*
+ * signals delivered on a per-thread basis.
+ */
+#define threadmask (sigmask(SIGILL)|sigmask(SIGTRAP)|\
+ sigmask(SIGABRT)|sigmask(SIGEMT)|\
+ sigmask(SIGFPE)|sigmask(SIGBUS)|\
+ sigmask(SIGSEGV)|sigmask(SIGSYS)|\
+ sigmask(SIGPIPE)|sigmask(SIGKILL))
+
+#define workq_threadmask ((threadmask | sigcantmask | sigmask(SIGPROF)) & ~sigmask(SIGABRT))
+
+/*
+ * Signals carried across exec.
+ */
+#define execmask (sigmask(SIGHUP)|sigmask(SIGINT)|\
+ sigmask(SIGQUIT)|sigmask(SIGKILL)|\
+ sigmask(SIGTERM)|sigmask(SIGSTOP)|\
+ sigmask(SIGTSTP)|sigmask(SIGCONT)|\
+ sigmask(SIGTTIN)|sigmask(SIGTTOU)|\
+ sigmask(SIGUSR1)|sigmask(SIGUSR2))
-#ifdef KERNEL
- /*
- * signals delivered on a per-thread basis.
- */
- #define threadmask (sigmask(SIGILL)|sigmask(SIGTRAP)|\
- sigmask(SIGIOT)|sigmask(SIGEMT)|\
- sigmask(SIGFPE)|sigmask(SIGBUS)|\
- sigmask(SIGSEGV)|sigmask(SIGSYS)|\
- sigmask(SIGPIPE))
-#endif /* KERNEL */
+#endif /* KERNEL_PRIVATE */
-#define BADSIG SIG_ERR
+#define BADSIG SIG_ERR
-#endif /* !_POSIX_SOURCE */
-#endif /* !_ANSI_SOURCE */
+#endif /* (!_POSIX_C_SOURCE || _DARWIN_C_SOURCE) */
+#endif /* !_ANSI_SOURCE */
/*
* For historical reasons; programs expect signal's return value to be
* defined by <sys/signal.h>.
*/
__BEGIN_DECLS
-void (*signal __P((int, void (*) __P((int))))) __P((int));
+ void(*signal(int, void (*)(int)))(int);
__END_DECLS
-#endif /* !_SYS_SIGNAL_H_ */
+#endif /* !_SYS_SIGNAL_H_ */
projects / apple / xnu.git / blobdiff