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2d88da2f06
struct thread. For all architectures, the syscall trap handlers have to allocate the structure on the stack. The structure takes 88 bytes on 64bit arches which is not negligible. Also, it cannot be easily found by other code, which e.g. caused duplication of some members of the structure to struct thread already. The change removes td_dbg_sc_code and td_dbg_sc_nargs which were directly copied from syscall_args. The structure is put into the copied on fork part of the struct thread to make the syscall arguments information correct in the child after fork. This move will also allow several more uses shortly. Reviewed by: jhb (previous version) Sponsored by: The FreeBSD Foundation MFC after: 3 weeks X-Differential revision: https://reviews.freebsd.org/D11080
58 lines
2.3 KiB
C
58 lines
2.3 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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#define FREEBSD32_MAXUSER ((1ul << 32) - IA32_PAGE_SIZE)
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#define FREEBSD32_MINUSER 0
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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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#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);
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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 /* _COMPAT_IA32_IA32_UTIL_H */
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