X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/91447636331957f3d9b5ca5b508f07c526b0074d..bca245acd4c03fd752d1a45f011ad495e60fe53d:/bsd/sys/signal.h diff --git a/bsd/sys/signal.h b/bsd/sys/signal.h index 0fa8fb1cb..594d6a670 100644 --- a/bsd/sys/signal.h +++ b/bsd/sys/signal.h @@ -1,23 +1,29 @@ /* - * Copyright (c) 2000-2005 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 */ /* @@ -60,477 +66,540 @@ * @(#)signal.h 8.2 (Berkeley) 1/21/94 */ -#ifndef _SYS_SIGNAL_H_ -#define _SYS_SIGNAL_H_ +#ifndef _SYS_SIGNAL_H_ +#define _SYS_SIGNAL_H_ #include #include +#include -#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) -#define NSIG 32 /* counting 0; could be 33 (mask is 1-32) */ +#define __DARWIN_NSIG 32 /* counting 0; could be 33 (mask is 1-32) */ + +#if !defined(_ANSI_SOURCE) && (!defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)) +#define NSIG __DARWIN_NSIG #endif -#include /* 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) -#define SIGPOLL 7 /* pollable event ([XSR] generated, not supported) */ -#else /* !_POSIX_C_SOURCE */ -#define SIGIOT SIGABRT /* compatibility */ -#define SIGEMT 7 /* EMT instruction */ -#endif /* !_POSIX_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) -#define SIGIO 23 /* input/output possible signal */ +#include /* 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 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) -#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(_POSIX_C_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 */ -#define SIG_DFL (void (*)(int))0 -#define SIG_IGN (void (*)(int))1 -#define SIG_HOLD (void (*)(int))5 -#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 /* 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) +#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 #include -#ifndef _MCONTEXT_T -#define _MCONTEXT_T -typedef __darwin_mcontext_t mcontext_t; -#endif - -#ifndef _POSIX_C_SOURCE -#ifndef _MCONTEXT64_T -#define _MCONTEXT64_T -typedef __darwin_mcontext64_t mcontext64_t; -#endif -#endif /* _POSIX_C_SOURCE */ - -#ifndef _PID_T -#define _PID_T -typedef __darwin_pid_t pid_t; -#endif - -#ifndef _PTHREAD_ATTR_T -#define _PTHREAD_ATTR_T -typedef __darwin_pthread_attr_t pthread_attr_t; -#endif +#include -#ifndef _SIGSET_T -#define _SIGSET_T -typedef __darwin_sigset_t sigset_t; -#endif +#ifndef KERNEL +#include +#endif /* KERNEL */ -#ifndef _SIZE_T -#define _SIZE_T -typedef __darwin_size_t size_t; -#endif +#include +#include -#ifndef _UCONTEXT_T -#define _UCONTEXT_T -typedef __darwin_ucontext_t ucontext_t; -#endif - -#ifndef _POSIX_C_SOURCE -#ifndef _UCONTEXT64_T -#define _UCONTEXT64_T -typedef __darwin_ucontext64_t ucontext64_t; -#endif -#endif /* _POSIX_C_SOURCE */ - -#ifndef _UID_T -#define _UID_T -typedef __darwin_uid_t uid_t; -#endif +#include +#include +#include +#include union sigval { /* Members as suggested by Annex C of POSIX 1003.1b. */ - int sival_int; - void *sival_ptr; + int sival_int; + void *sival_ptr; }; -#define SIGEV_NONE 0 /* No async notification */ -#define SIGEV_SIGNAL 1 /* aio - completion notification */ -#define SIGEV_THREAD 3 /* A notification function will be called to perform notification */ +#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 */ + 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 */ -// LP64todo - should this move? #ifdef BSD_KERNEL_PRIVATE -#if __DARWIN_ALIGN_NATURAL -#pragma options align=natural -#endif +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 { - int pad; /* assumes Motorolla byte order */ - int sival_int; + uint32_t pad; /* assumes Motorola byte order */ + int32_t sival_int; } size_equivalent; - user_addr_t sival_ptr; + user_addr_t sival_ptr; }; -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 */ +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 */ }; -#if __DARWIN_ALIGN_NATURAL -#pragma options align=reset -#endif +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 */ +}; -#endif /* BSD_KERNEL_PRIVATE */ +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 */ + 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 -#if __DARWIN_ALIGN_NATURAL -#pragma options align=natural -#endif - -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 */ - 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 */ +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; -#if __DARWIN_ALIGN_NATURAL -#pragma options align=reset -#endif - -#endif /* BSD_KERNEL_PRIVATE */ +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 */ -/* - * Incase of SIGILL and SIGFPE, si_addr contains the address of - * faulting instruction. - * Incase of SIGSEGV and SIGBUS, si_addr contains address of - * faulting memory reference. - * Incase of SIGCHLD, si_pid willhave child process ID, - * si_status will contain exit value or signal. - * si_uid contains real user ID of the process that sent the signal +/* + * 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. */ /* Values for si_code */ /* Codes for SIGILL */ -#ifndef _POSIX_C_SOURCE -#define ILL_NOOP 0 /* if only I knew... */ +#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 */ +#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 */ -#ifndef _POSIX_C_SOURCE -#define FPE_NOOP 0 /* if only I knew... */ +#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 -NOTIMP */ -#define FPE_INTOVF 8 /* [XSI] integer overflow -NOTIMP */ +#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 */ -#ifndef _POSIX_C_SOURCE -#define SEGV_NOOP 0 /* if only I knew... */ +#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 */ +#define SEGV_MAPERR 1 /* [XSI] address not mapped to object */ +#define SEGV_ACCERR 2 /* [XSI] invalid permission for mapped object */ /* Codes for SIGBUS */ -#ifndef _POSIX_C_SOURCE -#define BUS_NOOP 0 /* if only I knew... */ +#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 */ +#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 */ +#define TRAP_BRKPT 1 /* [XSI] Process breakpoint -NOTIMP */ +#define TRAP_TRACE 2 /* [XSI] Process trace trap -NOTIMP */ /* Codes for SIGCHLD */ -#ifndef _POSIX_C_SOURCE -#define CLD_NOOP 0 /* if only I knew... */ +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) +#define CLD_NOOP 0 /* if only I knew... */ #endif -#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 */ +#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 */ +#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 *); + void *); }; /* Signal vector template for Kernel user boundary */ -struct __sigaction { +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 */ + sigset_t sa_mask; /* signal mask to apply */ + int sa_flags; /* see signal options below */ }; /* * Signal vector "template" used in sigaction call. */ -struct sigaction { +struct sigaction { union __sigaction_u __sigaction_u; /* signal handler */ - sigset_t sa_mask; /* signal mask to apply */ - int sa_flags; /* see signal options below */ + sigset_t sa_mask; /* signal mask to apply */ + int sa_flags; /* see signal options below */ }; -#ifdef BSD_KERNEL_PRIVATE +#ifdef BSD_KERNEL_PRIVATE #include -#if __DARWIN_ALIGN_NATURAL -#pragma options align=natural -#endif +union __user32_sigaction_u { + user32_addr_t __sa_handler; + user32_addr_t __sa_sigaction; +}; -union __user_sigaction_u { - user_addr_t __sa_handler; - user_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 user_sigaction { - union __user_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 */ }; -struct __user_sigaction { - union __user_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 */ +union __user64_sigaction_u { + user64_addr_t __sa_handler; + user64_addr_t __sa_sigaction; }; -#if __DARWIN_ALIGN_NATURAL -#pragma options align=reset -#endif +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) +#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 */ +#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 */ -#define SA_DISABLE 0x0004 /* disable taking signals on alternate stack */ -#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 */ -#ifndef _POSIX_C_SOURCE -#define SA_USERTRAMP 0x0100 /* do not bounce off kernel's sigtramp */ +#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 */ +#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 */ /* 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 */ - -#ifndef _POSIX_C_SOURCE -typedef void (*sig_t)(int); /* type of signal function */ +#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. */ -#ifdef BSD_KERNEL_PRIVATE +#ifdef BSD_KERNEL_PRIVATE -#if __DARWIN_ALIGN_NATURAL -#pragma options align=natural -#endif - -struct user_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 */ +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 */ }; -#if __DARWIN_ALIGN_NATURAL -#pragma options align=reset -#endif +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 */ +}; -#endif /* BSD_KERNEL_PRIVATE */ +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 */ +}; -#ifndef _STACK_T -#define _STACK_T -typedef __darwin_stack_t stack_t; -#endif +#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 */ +#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 */ -#ifndef _POSIX_C_SOURCE +#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE) /* * 4.3 compatibility: * Signal vector "template" used in sigvec call. */ -struct sigvec { - void (*sv_handler)(int); /* 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_RESETHAND SA_RESETHAND -#define SV_NODEFER SA_NODEFER -#define SV_NOCLDSTOP SA_NOCLDSTOP -#define SV_SIGINFO SA_SIGINFO +#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 */ +#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 */ }; -#ifndef _POSIX_C_SOURCE +#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 BSD_KERNEL_PRIVATE +#ifdef KERNEL_PRIVATE /* * 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 /* BSD_KERNEL_PRIVATE */ + 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)) + +#endif /* KERNEL_PRIVATE */ -#define BADSIG SIG_ERR +#define BADSIG SIG_ERR -#endif /* !_POSIX_C_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 . */ __BEGIN_DECLS -void (*signal(int, void (*)(int)))(int); + void(*signal(int, void (*)(int)))(int); __END_DECLS -#endif /* !_SYS_SIGNAL_H_ */ +#endif /* !_SYS_SIGNAL_H_ */