/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2005 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
#ifndef _SYS_SIGNAL_H_
#define _SYS_SIGNAL_H_
-#if !defined(_ANSI_SOURCE) && !defined(_POSIX_SOURCE)
+#include <sys/cdefs.h>
+#include <sys/appleapiopts.h>
+
+#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE)
#define NSIG 32 /* counting 0; could be 33 (mask is 1-32) */
#endif
#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 <sys/signalvar.h>
*/
#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
-typedef unsigned int sigset_t;
+#include <sys/_types.h>
+
+#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 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 */
+
+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 */
+};
+
+// 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 */
+ 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 */
+ 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.
+ * 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
+ */
+
+/* Values for si_code */
+
+/* Codes for SIGILL */
+#ifndef _POSIX_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 */
+#ifndef _POSIX_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 */
+
+/* Codes for SIGSEGV */
+#ifndef _POSIX_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 */
+#ifndef _POSIX_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 */
+#ifndef _POSIX_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 */
+
+/* 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 {
-#if defined(__cplusplus)
- void (*sa_handler)(int); /* signal handler */
-#else
- void (*sa_handler)(); /* signal handler */
-#endif /* __cplusplus */
+ 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 __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 */
};
-#if !defined(_POSIX_SOURCE)
+
+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
+
#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 */
-#endif
+#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 /* !_POSIX_C_SOURCE */
/*
* Flags for sigprocmask:
#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 */
+
+#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 */
};
-#define MINSIGSTKSZ 8192 /* minimum allowable stack */
-#define SIGSTKSZ (MINSIGSTKSZ + 32768) /* recommended stack size */
+#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.
*/
struct sigvec {
- void (*sv_handler)(); /* signal handler */
+ 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 sv_flags /* isn't compatibility wonderful! */
+#endif /* !_POSIX_C_SOURCE */
/*
* Structure used in sigstack call.
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
- /*
- * 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 */
+#ifdef BSD_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 */
#define BADSIG SIG_ERR
-#endif /* !_POSIX_SOURCE */
+#endif /* !_POSIX_C_SOURCE */
#endif /* !_ANSI_SOURCE */
/*
* 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_ */
projects / apple / xnu.git / blobdiff