/*
- * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
*
- * @APPLE_LICENSE_HEADER_START@
+ * @APPLE_OSREFERENCE_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 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.
*
- * This Original Code and all software distributed under the License are
- * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * 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.
+ * 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_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
/* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
/*
#ifndef _SYS_SIGNALVAR_H_ /* tmp for user.h */
#define _SYS_SIGNALVAR_H_
+#include <sys/appleapiopts.h>
+
+#ifdef BSD_KERNEL_PRIVATE
/*
* Kernel signal definitions and data structures,
* not exported to user programs.
* (not necessarily resident).
*/
struct sigacts {
- sig_t ps_sigact[NSIG]; /* disposition of signals */
+ user_addr_t ps_sigact[NSIG]; /* disposition of signals */
+ user_addr_t ps_trampact[NSIG]; /* disposition of signals */
sigset_t ps_catchmask[NSIG]; /* signals to be blocked */
sigset_t ps_sigonstack; /* signals to take on sigstack */
sigset_t ps_sigintr; /* signals that interrupt syscalls */
+ sigset_t ps_sigreset; /* signals that reset when caught */
+ sigset_t ps_signodefer; /* signals not masked while handled */
+ sigset_t ps_siginfo; /* signals that want SA_SIGINFO args */
sigset_t ps_oldmask; /* saved mask from before sigpause */
int ps_flags; /* signal flags, below */
- struct sigaltstack ps_sigstk; /* sp & on stack state variable */
+ struct kern_sigaltstack ps_sigstk; /* sp, length & flags */
int ps_sig; /* for core dump/debugger XXX */
int ps_code; /* for core dump/debugger XXX */
int ps_addr; /* for core dump/debugger XXX */
sigset_t ps_usertramp; /* SunOS compat; libc sigtramp XXX */
+ sigset_t ps_64regset; /* signals that want SA_EXSIGINFO args */
};
/* 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 */
-#define SIG_CATCH (void (*)())2
-#define SIG_HOLD (void (*)())3
-
-
-#define pgsigio(pgid, sig, notused) \
- { \
- struct proc *p; \
- if (pgid < 0) \
- gsignal(-(pgid), sig);\
- else if (pgid > 0 && (p = pfind(pgid)) != 0) \
- psignal(p, sig); \
-}
-
-
/*
- * get signal action for process and signal; currently only for current process
+ * 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 SIGACTION(p, sig) (p->p_sigacts->ps_sigact[(sig)])
+#define KERN_SIG_CATCH (void (*)(int))2
+#define KERN_SIG_HOLD (void (*)(int))3
+#define KERN_SIG_WAIT (void (*)(int))4
/*
- * Determine signal that should be delivered to process p, the current
- * process, 0 if none. If there is a pending stop signal with default
- * action, the process stops in issig().
+ * get signal action for process and signal; currently only for current process
*/
-
-#define HAVE_SIGNALS(p) \
- ((p)->p_siglist \
- & ~((((p)->p_sigmask) \
- | (((p)->p_flag & P_TRACED) ? 0 : (p)->p_sigignore)) \
- & ~sigcantmask))
+#define SIGACTION(p, sig) (p->p_sigacts->ps_sigact[(sig)])
/*
* Check for per-process and per thread signals.
*/
#define SHOULDissignal(p,uthreadp) \
- (((p)->p_siglist | (uthreadp)->uu_sig) \
- & ~((((p)->p_sigmask) \
- | (((p)->p_flag & P_TRACED) ? 0 : (p)->p_sigignore)) \
+ (((uthreadp)->uu_siglist) \
+ & ~((((uthreadp)->uu_sigmask) \
+ | (((p)->p_lflag & P_LTRACED) ? 0 : (p)->p_sigignore)) \
& ~sigcantmask))
/*
(!thread_should_halt(thread) \
&& (SHOULDissignal(p,uthreadp)))
-
-/*
- * Clear a pending signal from a process.
- */
-#define CLRSIG(p, sig) { (p)->p_siglist &= ~sigmask(sig); }
-
/*
* Signal properties and actions.
* The array below categorizes the signals and their default actions
#define sigcantmask (sigmask(SIGKILL) | sigmask(SIGSTOP))
-#ifdef KERNEL
/*
* Machine-independent functions:
*/
-int coredump __P((struct proc *p));
-void execsigs __P((struct proc *p));
-void gsignal __P((int pgid, int sig));
-int issignal __P((struct proc *p));
-int CURSIG __P((struct proc *p));
-int clear_sigbits __P((struct proc *p, int bit));
-void pgsignal __P((struct pgrp *pgrp, int sig, int checkctty));
-void postsig __P((int sig));
-void psignal __P((struct proc *p, int sig));
-void siginit __P((struct proc *p));
-void trapsignal __P((struct proc *p, int sig, unsigned code));
-void pt_setrunnable __P((struct proc *p));
+int coredump(struct proc *p);
+void execsigs(struct proc *p, thread_t thread);
+void gsignal(int pgid, int sig);
+int issignal(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(int sig);
+void siginit(struct proc *p) __attribute__((section("__TEXT, initcode")));
+void trapsignal(struct proc *p, int sig, unsigned code);
+void pt_setrunnable(struct proc *p);
+int hassigprop(int sig, int prop);
/*
* Machine-dependent functions:
*/
-void sendsig __P((struct proc *, sig_t action, int sig, int returnmask, u_long code));
-#endif /* KERNEL */
+void sendsig(struct proc *, /*sig_t*/ user_addr_t action, int sig,
+ int returnmask, uint32_t code);
+
+void psignal(struct proc *p, int sig);
+void psignal_locked(struct proc *, int);
+void pgsignal(struct pgrp *pgrp, int sig, int checkctty);
+void tty_pgsignal(struct tty * tp, int sig, int checkctty);
+void threadsignal(thread_t sig_actthread, int signum,
+ mach_exception_code_t code);
+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_vtalarm(struct proc *);
+void psignal_xcpu(struct proc *);
+void psignal_sigprof(struct proc *);
+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 */
+
#endif /* !_SYS_SIGNALVAR_H_ */
projects / apple / xnu.git / blobdiff