fb526e055c
* Increase the size of sigset_t to accomodate 128 signals -- adding new versions of sys_setprocmask(), sys_sigaction(), sys_sigpending() and sys_sigsuspend() to handle the changed arguments. * Abstract the guts of sys_sigaltstack(), sys_setprocmask(), sys_sigaction(), sys_sigpending() and sys_sigsuspend() into separate functions, and call them from all the emulations rather than hard-coding everything. (Avoids uses the stackgap crap for these system calls.) * Add a new flag (p_checksig) to indicate that a process may have signals pending and userret() needs to do the full (slow) check. * Eliminate SAS_ALTSTACK; it's exactly the inverse of SS_DISABLE. * Correct emulation bugs with restoring SS_ONSTACK. * Make the signal mask in the sigcontext always use the emulated mask format. * Store signals internally in sigaction structures, rather than maintaining a bunch of little sigsets for each SA_* bit. * Keep track of where we put the signal trampoline, rather than figuring it out in *_sendsig(). * Issue a warning when a non-emulated sigaction bit is observed. * Add missing emulated signals, and a native SIGPWR (currently not used). * Implement the `not reset when caught' semantics for relevant signals. Note: Only code touched by the i386 port has been modified. Other ports and emulations need to be updated.
100 lines
3.4 KiB
C
100 lines
3.4 KiB
C
/* $NetBSD: linux_signal.h,v 1.5 1998/09/11 12:50:09 mycroft Exp $ */
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/*
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* Copyright (c) 1995 Frank van der Linden
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed for the NetBSD Project
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* by Frank van der Linden
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _LINUX_SIGNAL_H
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#define _LINUX_SIGNAL_H
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#define LINUX_SIGHUP 1
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#define LINUX_SIGINT 2
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#define LINUX_SIGQUIT 3
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#define LINUX_SIGILL 4
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#define LINUX_SIGTRAP 5
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#define LINUX_SIGABRT 6
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#define LINUX_SIGIOT 6
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#define LINUX_SIGBUS 7
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#define LINUX_SIGFPE 8
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#define LINUX_SIGKILL 9
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#define LINUX_SIGUSR1 10
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#define LINUX_SIGSEGV 11
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#define LINUX_SIGUSR2 12
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#define LINUX_SIGPIPE 13
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#define LINUX_SIGALRM 14
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#define LINUX_SIGTERM 15
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#define LINUX_SIGSTKFLT 16
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#define LINUX_SIGCHLD 17
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#define LINUX_SIGCONT 18
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#define LINUX_SIGSTOP 19
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#define LINUX_SIGTSTP 20
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#define LINUX_SIGTTIN 21
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#define LINUX_SIGTTOU 22
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#define LINUX_SIGURG 23
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#define LINUX_SIGXCPU 24
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#define LINUX_SIGXFSZ 25
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#define LINUX_SIGVTALRM 26
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#define LINUX_SIGPROF 27
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#define LINUX_SIGWINCH 28
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#define LINUX_SIGIO 29
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#define LINUX_SIGPWR 30
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#define LINUX_SIGUNUSED 31
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#define LINUX_NSIG 32
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#define LINUX_SIG_BLOCK 0
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#define LINUX_SIG_UNBLOCK 1
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#define LINUX_SIG_SETMASK 2
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typedef u_long linux_sigset_t;
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typedef void (*linux_handler_t) __P((int));
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struct linux_sigaction {
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linux_handler_t sa_handler;
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linux_sigset_t sa_mask;
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u_long sa_flags;
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void (*sa_restorer) __P((void));
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};
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/* sa_flags */
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#define LINUX_SA_NOCLDSTOP 0x00000001
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#define LINUX_SA_ONSTACK 0x08000000
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#define LINUX_SA_RESTART 0x10000000
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#define LINUX_SA_INTERRUPT 0x20000000
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#define LINUX_SA_NOMASK 0x40000000
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#define LINUX_SA_ONESHOT 0x80000000
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#define LINUX_SA_ALLBITS 0xf8000001
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extern int native_to_linux_sig[];
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extern int linux_to_native_sig[];
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void linux_to_native_sigset __P((const linux_sigset_t *, sigset_t *));
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void native_to_linux_sigset __P((const sigset_t *, linux_sigset_t *));
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#endif /* !_LINUX_SIGNAL_H */
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