X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/55e303ae13a4cf49d70f2294092726f2fffb9ef2..0c530ab8987f0ae6a1a3d9284f40182b88852816:/bsd/sys/signal.h diff --git a/bsd/sys/signal.h b/bsd/sys/signal.h index 92e3f7ffe..27914af93 100644 --- a/bsd/sys/signal.h +++ b/bsd/sys/signal.h @@ -1,24 +1,21 @@ /* - * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. + * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * - * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. + * 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 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. 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 + * This 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, QUIET ENJOYMENT OR NON-INFRINGEMENT. - * Please see the License for the specific language governing rights and - * limitations under the License. + * 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@ */ @@ -66,9 +63,10 @@ #ifndef _SYS_SIGNAL_H_ #define _SYS_SIGNAL_H_ +#include #include -#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE) +#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) #define NSIG 32 /* counting 0; could be 33 (mask is 1-32) */ #endif @@ -78,77 +76,122 @@ #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) +#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 +#endif /* !_POSIX_C_SOURCE */ #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 */ -#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) +#if !defined(_POSIX_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 */ #endif #define SIGUSR1 30 /* user defined signal 1 */ #define SIGUSR2 31 /* user defined signal 2 */ -#if defined(_ANSI_SOURCE) || defined(__cplusplus) +#if defined(_ANSI_SOURCE) || defined(_POSIX_C_SOURCE) || 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_ERR (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 -#include +#include -typedef unsigned int sigset_t; +#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 + +#ifndef _SIGSET_T +#define _SIGSET_T +typedef __darwin_sigset_t sigset_t; +#endif + +#ifndef _SIZE_T +#define _SIZE_T +typedef __darwin_size_t size_t; +#endif + +#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 union sigval { /* Members as suggested by Annex C of POSIX 1003.1b. */ - int sigval_int; - void *sigval_ptr; + int sival_int; + void *sival_ptr; }; -#define SIGEV_NONE 0 /* No async notification */ +#define SIGEV_NONE 0 /* No async notification */ #define SIGEV_SIGNAL 1 /* aio - completion notification */ -#ifdef __APPLE_API_PRIVATE #define SIGEV_THREAD 3 /* A notification function will be called to perform notification */ -#endif /*__APPLE_API_PRIVATE */ struct sigevent { int sigev_notify; /* Notification type */ @@ -158,19 +201,57 @@ struct sigevent { pthread_attr_t *sigev_notify_attributes; /* Notification attributes */ }; +// LP64todo - should this move? +#ifdef BSD_KERNEL_PRIVATE + +union user_sigval { + struct { + int pad; /* assumes Motorolla byte order */ + int sival_int; + } size_equivalent; + 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 */ +}; + +#endif /* BSD_KERNEL_PRIVATE */ + typedef struct __siginfo { int si_signo; /* signal number */ int si_errno; /* errno association */ int si_code; /* signal code */ - int si_pid; /* sending process */ - unsigned int si_uid; /* sender's ruid */ + 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 int pad[7]; /* Reserved for Future Use */ + 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 */ + 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; + +#endif /* BSD_KERNEL_PRIVATE */ + /* * Incase of SIGILL and SIGFPE, si_addr contains the address of * faulting instruction. @@ -184,38 +265,68 @@ typedef struct __siginfo { /* Values for si_code */ /* Codes for SIGILL */ +#ifndef _POSIX_C_SOURCE #define ILL_NOOP 0 /* if only I knew... */ -#define ILL_ILLOPC 1 /* illegal opcode */ -#define ILL_ILLTRP 2 /* illegal trap */ -#define ILL_PRVOPC 3 /* privileged opcode */ +#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 */ +#ifndef _POSIX_C_SOURCE #define FPE_NOOP 0 /* if only I knew... */ -#define FPE_FLTDIV 1 /* floating point divide by zero */ -#define FPE_FLTOVF 2 /* floating point overflow */ -#define FPE_FLTUND 3 /* floating point underflow */ -#define FPE_FLTRES 4 /* floating point inexact result */ -#define FPE_FLTINV 5 /* invalid floating point operation */ +#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 */ /* Codes for SIGSEGV */ +#ifndef _POSIX_C_SOURCE #define SEGV_NOOP 0 /* if only I knew... */ -#define SEGV_MAPERR 1 /* address not mapped to object */ -#define SEGV_ACCERR 2 /* invalid permissions for mapped to object */ +#endif +#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... */ -#define BUS_ADRALN 1 /* invalid address alignment */ +#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 */ +#ifndef _POSIX_C_SOURCE #define CLD_NOOP 0 /* if only I knew... */ -#define CLD_EXITED 1 /* child has exited */ -#define CLD_KILLED 2 - /* child has terminated abnormally and did not create a core file */ -#define CLD_DUMPED 3 - /* child has terminated abnormally and create a core file */ -#define CLD_TRAPPED 4 /* traced child has trapped */ -#define CLD_STOPPED 5 /* child has stopped */ -#define CLD_CONTINUED 6 /* stopped child has continued */ +#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 */ + +/* 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 { @@ -240,24 +351,55 @@ struct sigaction { sigset_t sa_mask; /* signal mask to apply */ int sa_flags; /* see signal options below */ }; + +#ifdef BSD_KERNEL_PRIVATE +#include + +union __user_sigaction_u { + user_addr_t __sa_handler; + user_addr_t __sa_sigaction; +}; + +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 __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 */ +}; + +#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 - -#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_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 */ /* 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 -#define SA_NOCLDSTOP 0x0008 /* do not generate SIGCHLD on child stop */ +#endif /* !_POSIX_C_SOURCE */ /* * Flags for sigprocmask: @@ -267,32 +409,40 @@ struct sigaction { #define SIG_SETMASK 3 /* set specified signal set */ /* POSIX 1003.1b required values. */ -#define SI_USER 0x10001 -#define SI_QUEUE 0x10002 -#define SI_TIMER 0x10003 -#define SI_ASYNCIO 0x10004 -#define SI_MESGQ 0x10005 - -#if !defined(_POSIX_SOURCE) -#include -typedef void (*sig_t) __P((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 */ + +#ifndef _POSIX_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 user_sigaltstack { + user_addr_t ss_sp; /* signal stack base */ + user_size_t ss_size; /* signal stack length */ + int ss_flags __attribute((aligned(8))); /* SA_DISABLE and/or SA_ONSTACK */ }; -typedef struct sigaltstack stack_t; +#endif /* BSD_KERNEL_PRIVATE */ + +#ifndef _STACK_T +#define _STACK_T +typedef __darwin_stack_t stack_t; +#endif #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 /* * 4.3 compatibility: * Signal vector "template" used in sigvec call. @@ -311,6 +461,7 @@ struct sigvec { #define SV_SIGINFO SA_SIGINFO #define sv_onstack sv_flags /* isn't compatibility wonderful! */ +#endif /* !_POSIX_C_SOURCE */ /* * Structure used in sigstack call. @@ -320,14 +471,14 @@ struct sigstack { int ss_onstack; /* current status */ }; +#ifndef _POSIX_C_SOURCE /* * Macro for converting signal number to a mask suitable for * sigblock(). */ #define sigmask(m) (1 << ((m)-1)) -#ifdef KERNEL -#ifdef __APPLE_API_PRIVATE +#ifdef BSD_KERNEL_PRIVATE /* * signals delivered on a per-thread basis. */ @@ -336,12 +487,11 @@ struct sigstack { sigmask(SIGFPE)|sigmask(SIGBUS)|\ sigmask(SIGSEGV)|sigmask(SIGSYS)|\ sigmask(SIGPIPE)) -#endif /* __APPLE_API_PRIVATE */ -#endif /* KERNEL */ +#endif /* BSD_KERNEL_PRIVATE */ #define BADSIG SIG_ERR -#endif /* !_POSIX_SOURCE */ +#endif /* !_POSIX_C_SOURCE */ #endif /* !_ANSI_SOURCE */ /* @@ -349,6 +499,6 @@ struct sigstack { * defined by . */ __BEGIN_DECLS -void (*signal __P((int, void (*) __P((int))))) __P((int)); +void (*signal(int, void (*)(int)))(int); __END_DECLS #endif /* !_SYS_SIGNAL_H_ */