9f6565f2bd
two ways: - the child gets its pid as retval[0] (userland stub will turn it into a 0), retval[1] is 1 and it is 0 in the parent. - in the child, the fork syscall is successful, hence we must skip the next instruction.
102 lines
3.3 KiB
C
102 lines
3.3 KiB
C
/* $NetBSD: darwin_machdep.h,v 1.2 2002/12/08 21:53:10 manu Exp $ */
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/*-
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* Copyright (c) 2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Emmanuel Dreyfus
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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 NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _DARWIN_MACHDEP_H_
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#define _DARWIN_MACHDEP_H_
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void darwin_fork_child_return(void *);
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struct darwin_ppc_exception_state {
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unsigned long dar;
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unsigned long dsisr;
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unsigned long exception;
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unsigned long pad[5];
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};
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struct darwin_ppc_thread_state {
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unsigned int srr0;
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unsigned int srr1;
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unsigned int gpreg[32];
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unsigned int cr;
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unsigned int xer;
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unsigned int lr;
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unsigned int ctr;
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unsigned int mq;
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unsigned int vrsave;
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};
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struct darwin_ppc_float_state {
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double fpregs[32];
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unsigned int fpscr_pad;
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unsigned int fpscr;
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};
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struct darwin_ppc_vector_state {
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unsigned long vr[32][4];
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unsigned long vscr[4];
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unsigned int pad1[4];
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unsigned int vrvalid;
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unsigned int pad2[7];
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};
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struct darwin_mcontext {
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struct darwin_ppc_exception_state es;
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struct darwin_ppc_thread_state ss;
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struct darwin_ppc_float_state fs;
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struct darwin_ppc_vector_state vs;
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};
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struct darwin_sigframe {
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int nocopy1[30];
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/* struct darwin_mcontext without the vs field */
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struct darwin__mcontext {
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struct darwin_ppc_exception_state es;
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struct darwin_ppc_thread_state ss;
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struct darwin_ppc_float_state fs;
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} dmc;
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int nocopy2[144];
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/* struct darwin_ucontext with some padding */
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struct darwin__ucontext {
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darwin_siginfo_t si;
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struct darwin_ucontext uctx;
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} duc;
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int nocopy3[56];
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};
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#endif /* !_DARWIN_MACHDEP_H_ */
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