26200ee754
This areas is called the comm pages. It is used to provide fast access to several data and functions. The comm pages are mapped starting at 0xffff800 (address chosed so that absolute branch can be used, so it can be accessed even when dynamic linking is not ready). NetBSD has the user stack here, so we need to provide a Darwin-specific stack setup routine which sets the top of the stack at 0xbfff0000. This implementation is not complete but it does enough to get MacOS X.3 starting again (static binaries run, dynamic binaries still have an issue). in the comm pages functions, we only implement bcopy, pthread_self and memcpy. TODO: - clean up the powerpc specific code from MD parts - for now we map only one page to avoid a crash, we want two pages. - write all the comm functions.
67 lines
2.8 KiB
C
67 lines
2.8 KiB
C
/* $NetBSD: darwin_exec.h,v 1.11 2004/07/03 00:14:30 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_EXEC_H_
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#define _DARWIN_EXEC_H_
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#include <compat/mach/mach_exec.h>
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/*
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* Because it can be used by Mach emulation code as well as Darwin emulation
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* code, this structure must begin with a struct mach_emuldata.
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*/
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struct darwin_emuldata {
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struct mach_emuldata ded_mach_emuldata;
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pid_t ded_fakepid;
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dev_t ded_wsdev; /* display to restore on exit */
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int *ded_hidsystem_finished; /* iohidsystem thread finished flag */
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int ded_flags; /* flags, see below */
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void *ded_vramoffset; /* Where VRAM was mapped? */
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};
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#define DARWIN_DED_SIGEXC 1 /* Mach exceptions instead of signals */
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int exec_darwin_copyargs(struct proc *, struct exec_package *,
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struct ps_strings *, char **, void *);
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int exec_darwin_probe(char **);
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int darwin_exec_setup_stack(struct proc *, struct exec_package *);
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extern const struct emul emul_darwin;
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#endif /* !_DARWIN_EXEC_H_ */
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