255 lines
9.9 KiB
C
255 lines
9.9 KiB
C
|
/*
|
||
|
|
* Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
|
||
|
|
*
|
||
|
|
* @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, 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 */
|
||
|
|
/*
|
||
|
|
* Copyright (c) 1991, 1993
|
||
|
|
* The Regents of the University of California. All rights reserved.
|
||
|
|
*
|
||
|
|
* Redistribution and use in source and binary forms, with or without
|
||
|
|
* modification, are permitted provided that the following conditions
|
||
|
|
* are met:
|
||
|
|
* 1. Redistributions of source code must retain the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer.
|
||
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
||
|
|
* notice, this list of conditions and the following disclaimer in the
|
||
|
|
* documentation and/or other materials provided with the distribution.
|
||
|
|
* 3. All advertising materials mentioning features or use of this software
|
||
|
|
* must display the following acknowledgement:
|
||
|
|
* This product includes software developed by the University of
|
||
|
|
* California, Berkeley and its contributors.
|
||
|
|
* 4. Neither the name of the University nor the names of its contributors
|
||
|
|
* may be used to endorse or promote products derived from this software
|
||
|
|
* without specific prior written permission.
|
||
|
|
*
|
||
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||
|
|
* SUCH DAMAGE.
|
||
|
|
*
|
||
|
|
* @(#)signalvar.h 8.3 (Berkeley) 1/4/94
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifndef _SYS_SIGNALVAR_H_ /* tmp for user.h */
|
||
|
|
#define _SYS_SIGNALVAR_H_
|
||
|
|
|
||
|
|
#include <sys/appleapiopts.h>
|
||
|
|
|
||
|
|
#ifdef BSD_KERNEL_PRIVATE
|
||
|
|
|
||
|
|
#include <stdatomic.h>
|
||
|
|
|
||
|
|
/* signal flags */
|
||
|
|
#define SAS_OLDMASK 0x01 /* need to restore mask before pause */
|
||
|
|
#define SAS_ALTSTACK 0x02 /* have alternate signal stack */
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Additional signal action values, used only temporarily/internally; these
|
||
|
|
* values should be non-intersecting with values defined in signal.h, e.g.:
|
||
|
|
* SIG_IGN, SIG_DFL, SIG_ERR, SIG_IGN.
|
||
|
|
*/
|
||
|
|
#define KERN_SIG_CATCH CAST_USER_ADDR_T(2)
|
||
|
|
#define KERN_SIG_HOLD CAST_USER_ADDR_T(3)
|
||
|
|
#define KERN_SIG_WAIT CAST_USER_ADDR_T(4)
|
||
|
|
|
||
|
|
/* Values for ps_sigreturn_validation */
|
||
|
|
#define PS_SIGRETURN_VALIDATION_DEFAULT 0x0u
|
||
|
|
#define PS_SIGRETURN_VALIDATION_ENABLED 0x1u
|
||
|
|
#define PS_SIGRETURN_VALIDATION_DISABLED 0x2u
|
||
|
|
|
||
|
|
/*
|
||
|
|
* get signal action for process and signal; currently only for current process
|
||
|
|
*/
|
||
|
|
#define SIGACTION(p, sig) ({ p->p_sigacts.ps_sigact[(sig)]; })
|
||
|
|
#define SIGTRAMP(p, sig) ({ p->p_sigacts.ps_trampact[(sig)]; })
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Check for per-process and per thread signals.
|
||
|
|
*/
|
||
|
|
#define SHOULDissignal(p, uthreadp) \
|
||
|
|
(((uthreadp)->uu_siglist) \
|
||
|
|
& ~((((uthreadp)->uu_sigmask) \
|
||
|
|
| (((p)->p_lflag & P_LTRACED) ? 0 : (p)->p_sigignore)) \
|
||
|
|
& ~sigcantmask))
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Check for signals and per-thread signals.
|
||
|
|
* Use in trap() and syscall() before
|
||
|
|
* exiting kernel.
|
||
|
|
*/
|
||
|
|
#define CHECK_SIGNALS(p, thread, uthreadp) \
|
||
|
|
(!thread_should_halt(thread) \
|
||
|
|
&& (SHOULDissignal(p,uthreadp)))
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Signal properties and actions.
|
||
|
|
* The array below categorizes the signals and their default actions
|
||
|
|
* according to the following properties:
|
||
|
|
*/
|
||
|
|
#define SA_KILL 0x01 /* terminates process by default */
|
||
|
|
#define SA_CORE 0x02 /* ditto and coredumps */
|
||
|
|
#define SA_STOP 0x04 /* suspend process */
|
||
|
|
#define SA_TTYSTOP 0x08 /* ditto, from tty */
|
||
|
|
#define SA_IGNORE 0x10 /* ignore by default */
|
||
|
|
#define SA_CONT 0x20 /* continue if suspended */
|
||
|
|
#define SA_CANTMASK 0x40 /* non-maskable, catchable */
|
||
|
|
|
||
|
|
#ifdef SIGPROP
|
||
|
|
int sigprop[NSIG] = {
|
||
|
|
0, /* unused */
|
||
|
|
SA_KILL, /* SIGHUP */
|
||
|
|
SA_KILL, /* SIGINT */
|
||
|
|
SA_KILL | SA_CORE, /* SIGQUIT */
|
||
|
|
SA_KILL | SA_CORE, /* SIGILL */
|
||
|
|
SA_KILL | SA_CORE, /* SIGTRAP */
|
||
|
|
SA_KILL | SA_CORE, /* SIGABRT */
|
||
|
|
SA_KILL | SA_CORE, /* SIGEMT */
|
||
|
|
SA_KILL | SA_CORE, /* SIGFPE */
|
||
|
|
SA_KILL, /* SIGKILL */
|
||
|
|
SA_KILL | SA_CORE, /* SIGBUS */
|
||
|
|
SA_KILL | SA_CORE, /* SIGSEGV */
|
||
|
|
SA_KILL | SA_CORE, /* SIGSYS */
|
||
|
|
SA_KILL, /* SIGPIPE */
|
||
|
|
SA_KILL, /* SIGALRM */
|
||
|
|
SA_KILL, /* SIGTERM */
|
||
|
|
SA_IGNORE, /* SIGURG */
|
||
|
|
SA_STOP, /* SIGSTOP */
|
||
|
|
SA_STOP | SA_TTYSTOP, /* SIGTSTP */
|
||
|
|
SA_IGNORE | SA_CONT, /* SIGCONT */
|
||
|
|
SA_IGNORE, /* SIGCHLD */
|
||
|
|
SA_STOP | SA_TTYSTOP, /* SIGTTIN */
|
||
|
|
SA_STOP | SA_TTYSTOP, /* SIGTTOU */
|
||
|
|
SA_IGNORE, /* SIGIO */
|
||
|
|
SA_KILL, /* SIGXCPU */
|
||
|
|
SA_KILL, /* SIGXFSZ */
|
||
|
|
SA_KILL, /* SIGVTALRM */
|
||
|
|
SA_KILL, /* SIGPROF */
|
||
|
|
SA_IGNORE, /* SIGWINCH */
|
||
|
|
SA_IGNORE, /* SIGINFO */
|
||
|
|
SA_KILL, /* SIGUSR1 */
|
||
|
|
SA_KILL, /* SIGUSR2 */
|
||
|
|
};
|
||
|
|
|
||
|
|
#define contsigmask (sigmask(SIGCONT))
|
||
|
|
#define stopsigmask (sigmask(SIGSTOP) | sigmask(SIGTSTP) | \
|
||
|
|
sigmask(SIGTTIN) | sigmask(SIGTTOU))
|
||
|
|
|
||
|
|
#endif /* SIGPROP */
|
||
|
|
|
||
|
|
#define sigcantmask (sigmask(SIGKILL) | sigmask(SIGSTOP))
|
||
|
|
|
||
|
|
#define SIGRESTRICTMASK (sigmask(SIGILL) | sigmask(SIGTRAP) | sigmask(SIGABRT) | \
|
||
|
|
sigmask(SIGFPE) | sigmask(SIGBUS) | sigmask(SIGSEGV) | \
|
||
|
|
sigmask(SIGSYS))
|
||
|
|
|
||
|
|
/*
|
||
|
|
* Machine-independent functions:
|
||
|
|
*/
|
||
|
|
|
||
|
|
#if DEVELOPMENT || DEBUG
|
||
|
|
extern bool no_sigsys;
|
||
|
|
#define send_sigsys (!no_sigsys)
|
||
|
|
#else
|
||
|
|
#define send_sigsys 1
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
void execsigs(struct proc *p, thread_t thread);
|
||
|
|
void gsignal(int pgid, int sig);
|
||
|
|
int issignal_locked(struct proc *p);
|
||
|
|
int CURSIG(struct proc *p);
|
||
|
|
int clear_procsiglist(struct proc *p, int bit, int in_signalstart);
|
||
|
|
int set_procsigmask(struct proc *p, int bit);
|
||
|
|
void postsig_locked(int sig);
|
||
|
|
void siginit(struct proc *p);
|
||
|
|
void trapsignal(struct proc *p, int sig, unsigned code);
|
||
|
|
void pt_setrunnable(struct proc *p);
|
||
|
|
int hassigprop(int sig, int prop);
|
||
|
|
int setsigvec(proc_t, thread_t, int signum, struct __kern_sigaction *, boolean_t in_sigstart);
|
||
|
|
|
||
|
|
struct os_reason;
|
||
|
|
/*
|
||
|
|
* Machine-dependent functions:
|
||
|
|
*/
|
||
|
|
void sendsig(struct proc *, /*sig_t*/ user_addr_t action, int sig,
|
||
|
|
int returnmask, uint32_t code, sigset_t siginfo);
|
||
|
|
|
||
|
|
void psignal(struct proc *p, int sig);
|
||
|
|
void psignal_with_reason(struct proc *p, int sig, struct os_reason *signal_reason);
|
||
|
|
void psignal_locked(struct proc *, int);
|
||
|
|
void psignal_try_thread(proc_t, thread_t, int signum);
|
||
|
|
void psignal_try_thread_with_reason(proc_t, thread_t, int, struct os_reason*);
|
||
|
|
void psignal_thread_with_reason(proc_t, thread_t, int, struct os_reason*);
|
||
|
|
void psignal_uthread(thread_t, int);
|
||
|
|
void pgsignal(struct pgrp *pgrp, int sig, int checkctty);
|
||
|
|
void tty_pgsignal_locked(struct tty * tp, int sig, int checkctty);
|
||
|
|
void threadsignal(thread_t sig_actthread, int signum,
|
||
|
|
mach_exception_code_t code, boolean_t set_exitreason);
|
||
|
|
int thread_issignal(proc_t p, thread_t th, sigset_t mask);
|
||
|
|
void psignal_vfork(struct proc *p, task_t new_task, thread_t thread,
|
||
|
|
int signum);
|
||
|
|
void psignal_vfork_with_reason(proc_t p, task_t new_task, thread_t thread,
|
||
|
|
int signum, struct os_reason *signal_reason);
|
||
|
|
void signal_setast(thread_t sig_actthread);
|
||
|
|
void pgsigio(pid_t pgid, int signalnum);
|
||
|
|
|
||
|
|
void sig_lock_to_exit(struct proc *p);
|
||
|
|
int sig_try_locked(struct proc *p);
|
||
|
|
|
||
|
|
#endif /* BSD_KERNEL_PRIVATE */
|
||
|
|
|
||
|
|
#if defined(KERNEL_PRIVATE)
|
||
|
|
/* Forward-declare these for consumers of the SDK that don't know about BSD types */
|
||
|
|
struct proc;
|
||
|
|
struct os_reason;
|
||
|
|
void psignal_sigkill_with_reason(struct proc *p, struct os_reason *signal_reason);
|
||
|
|
#endif /* defined(KERNEL_PRIVATE) */
|
||
|
|
|
||
|
|
#ifdef XNU_KERNEL_PRIVATE
|
||
|
|
|
||
|
|
/* Functions exported to Mach as well */
|
||
|
|
|
||
|
|
#define COREDUMP_IGNORE_ULIMIT 0x0001 /* Ignore the process's core file ulimit. */
|
||
|
|
#define COREDUMP_FULLFSYNC 0x0002 /* Run F_FULLFSYNC on the core file's vnode */
|
||
|
|
|
||
|
|
cpu_type_t process_cpu_type(struct proc * core_proc);
|
||
|
|
cpu_type_t process_cpu_subtype(struct proc * core_proc);
|
||
|
|
int coredump(struct proc *p, uint32_t reserve_mb, int coredump_flags);
|
||
|
|
void set_thread_exit_reason(void *th, void *reason, boolean_t proc_locked);
|
||
|
|
|
||
|
|
#endif /* XNU_KERNEL_PRIVATE */
|
||
|
|
|
||
|
|
|
||
|
|
#endif /* !_SYS_SIGNALVAR_H_ */
|