171 lines
5.9 KiB
C
171 lines
5.9 KiB
C
/* $NetBSD: signal.h,v 1.15 2003/01/17 23:10:29 thorpej Exp $ */
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/*
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* Copyright (c) 1982, 1986, 1989, 1991 Regents of the University of California.
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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 by the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)signal.h 7.16 (Berkeley) 3/17/91
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*/
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#ifndef _I386_SIGNAL_H_
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#define _I386_SIGNAL_H_
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typedef int sig_atomic_t;
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#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE) && \
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!defined(_XOPEN_SOURCE)
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/*
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* Get the "code" values
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*/
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#include <machine/trap.h>
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/*
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* Information pushed on stack when a signal is delivered.
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* This is used by the kernel to restore state following
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* execution of the signal handler. It is also made available
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* to the handler to allow it to restore state properly if
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* a non-standard exit is performed.
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*/
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#if defined(__LIBC12_SOURCE__) || defined(_KERNEL)
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struct sigcontext13 {
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int sc_gs;
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int sc_fs;
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int sc_es;
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int sc_ds;
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int sc_edi;
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int sc_esi;
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int sc_ebp;
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int sc_ebx;
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int sc_edx;
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int sc_ecx;
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int sc_eax;
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/* XXX */
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int sc_eip;
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int sc_cs;
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int sc_eflags;
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int sc_esp;
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int sc_ss;
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int sc_onstack; /* sigstack state to restore */
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int sc_mask; /* signal mask to restore (old style) */
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int sc_trapno; /* XXX should be above */
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int sc_err;
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};
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#endif
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struct sigcontext {
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int sc_gs;
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int sc_fs;
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int sc_es;
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int sc_ds;
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int sc_edi;
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int sc_esi;
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int sc_ebp;
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int sc_ebx;
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int sc_edx;
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int sc_ecx;
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int sc_eax;
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/* XXX */
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int sc_eip;
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int sc_cs;
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int sc_eflags;
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int sc_esp;
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int sc_ss;
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int sc_onstack; /* sigstack state to restore */
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int __sc_mask13; /* signal mask to restore (old style) */
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int sc_trapno; /* XXX should be above */
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int sc_err;
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sigset_t sc_mask; /* signal mask to restore (new style) */
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};
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/*
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* The following macros are used to convert from a ucontext to sigcontext,
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* and vice-versa. This is for building a sigcontext to deliver to old-style
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* signal handlers, and converting back (in the event the handler modifies
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* the context).
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*/
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#define _MCONTEXT_TO_SIGCONTEXT(uc, sc) \
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do { \
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(sc)->sc_gs = (uc)->uc_mcontext.__gregs[_REG_GS]; \
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(sc)->sc_fs = (uc)->uc_mcontext.__gregs[_REG_FS]; \
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(sc)->sc_es = (uc)->uc_mcontext.__gregs[_REG_ES]; \
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(sc)->sc_ds = (uc)->uc_mcontext.__gregs[_REG_DS]; \
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(sc)->sc_edi = (uc)->uc_mcontext.__gregs[_REG_EDI]; \
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(sc)->sc_esi = (uc)->uc_mcontext.__gregs[_REG_ESI]; \
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(sc)->sc_ebp = (uc)->uc_mcontext.__gregs[_REG_EBP]; \
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(sc)->sc_ebx = (uc)->uc_mcontext.__gregs[_REG_EBX]; \
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(sc)->sc_edx = (uc)->uc_mcontext.__gregs[_REG_EDX]; \
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(sc)->sc_ecx = (uc)->uc_mcontext.__gregs[_REG_ECX]; \
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(sc)->sc_eax = (uc)->uc_mcontext.__gregs[_REG_EAX]; \
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(sc)->sc_eip = (uc)->uc_mcontext.__gregs[_REG_EIP]; \
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(sc)->sc_cs = (uc)->uc_mcontext.__gregs[_REG_CS]; \
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(sc)->sc_eflags = (uc)->uc_mcontext.__gregs[_REG_EFL]; \
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(sc)->sc_esp = (uc)->uc_mcontext.__gregs[_REG_UESP]; \
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(sc)->sc_ss = (uc)->uc_mcontext.__gregs[_REG_SS]; \
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(sc)->sc_trapno = (uc)->uc_mcontext.__gregs[_REG_TRAPNO]; \
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(sc)->sc_err = (uc)->uc_mcontext.__gregs[_REG_ERR]; \
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} while (/*CONSTCOND*/0)
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#define _SIGCONTEXT_TO_MCONTEXT(sc, uc) \
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do { \
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(uc)->uc_mcontext.__gregs[_REG_GS] = (sc)->sc_gs; \
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(uc)->uc_mcontext.__gregs[_REG_FS] = (sc)->sc_fs; \
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(uc)->uc_mcontext.__gregs[_REG_ES] = (sc)->sc_es; \
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(uc)->uc_mcontext.__gregs[_REG_DS] = (sc)->sc_ds; \
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(uc)->uc_mcontext.__gregs[_REG_EDI] = (sc)->sc_edi; \
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(uc)->uc_mcontext.__gregs[_REG_ESI] = (sc)->sc_esi; \
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(uc)->uc_mcontext.__gregs[_REG_EBP] = (sc)->sc_ebp; \
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(uc)->uc_mcontext.__gregs[_REG_EBX] = (sc)->sc_ebx; \
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(uc)->uc_mcontext.__gregs[_REG_EDX] = (sc)->sc_edx; \
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(uc)->uc_mcontext.__gregs[_REG_ECX] = (sc)->sc_ecx; \
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(uc)->uc_mcontext.__gregs[_REG_EAX] = (sc)->sc_eax; \
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(uc)->uc_mcontext.__gregs[_REG_EIP] = (sc)->sc_eip; \
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(uc)->uc_mcontext.__gregs[_REG_CS] = (sc)->sc_cs; \
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(uc)->uc_mcontext.__gregs[_REG_EFL] = (sc)->sc_eflags; \
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(uc)->uc_mcontext.__gregs[_REG_UESP] = (sc)->sc_esp; \
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(uc)->uc_mcontext.__gregs[_REG_UESP] = (sc)->sc_esp; \
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(uc)->uc_mcontext.__gregs[_REG_SS] = (sc)->sc_ss; \
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(uc)->uc_mcontext.__gregs[_REG_TRAPNO] = (sc)->sc_trapno; \
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(uc)->uc_mcontext.__gregs[_REG_ERR] = (sc)->sc_err; \
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} while (/*CONSTCOND*/0)
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#define sc_sp sc_esp
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#define sc_fp sc_ebp
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#define sc_pc sc_eip
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#define sc_ps sc_eflags
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#endif /* !_ANSI_SOURCE && !_POSIX_C_SOURCE && !_XOPEN_SOURCE */
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#endif /* !_I386_SIGNAL_H_ */
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