7c2eaa21fe
In particular: - implement compat shims for old stat(2) variants and ogetdirentries(2); - implement delivery of signals with ancient stack frame layout and corresponding sigreturn(2); - implement old getpagesize(2); - provide a user-mode trampoline and LDT call gate for lcall $7,$0; - port a.out image activator and connect it to the build as a module on amd64. The changes are hidden under COMPAT_43. MFC after: 1 month
64 lines
2.4 KiB
C
64 lines
2.4 KiB
C
/*-
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* Copyright (c) 1998-1999 Andrew Gallatin
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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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* in this position and unchanged.
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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. The name of the author may not be used to endorse or promote products
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* derived from this software withough 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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* $FreeBSD$
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*/
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#ifndef _COMPAT_IA32_IA32_UTIL_H
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#define _COMPAT_IA32_IA32_UTIL_H
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#include <vm/vm.h>
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#include <vm/vm_param.h>
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#include <vm/pmap.h>
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#include <sys/exec.h>
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#include <sys/sysent.h>
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#include <sys/cdefs.h>
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#ifdef __ia64__
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#define FREEBSD32_MAXUSER ((1ul << 32) - IA32_PAGE_SIZE * 2)
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#define FREEBSD32_SHAREDPAGE 0
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#define FREEBSD32_USRSTACK FREEBSD32_MAXUSER
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#else
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#define FREEBSD32_MAXUSER ((1ul << 32) - IA32_PAGE_SIZE)
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#define FREEBSD32_SHAREDPAGE (FREEBSD32_MAXUSER - IA32_PAGE_SIZE)
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#define FREEBSD32_USRSTACK FREEBSD32_SHAREDPAGE
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#endif
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#define IA32_PAGE_SIZE 4096
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#define IA32_MAXDSIZ (512*1024*1024) /* 512MB */
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#define IA32_MAXSSIZ (64*1024*1024) /* 64MB */
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#define IA32_MAXVMEM 0 /* Unlimited */
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struct syscall_args;
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int ia32_fetch_syscall_args(struct thread *td, struct syscall_args *sa);
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void ia32_set_syscall_retval(struct thread *, int);
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void ia32_fixlimit(struct rlimit *rl, int which);
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#endif
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