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183 lines
7.2 KiB
C
183 lines
7.2 KiB
C
/*
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* Coyright (c) 2005-2013 Apple Inc. All rights reserved.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
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*
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* This file contains Original Code and/or Modifications of Original Code
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* as defined in and that are subject to the Apple Public Source License
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* Version 2.0 (the 'License'). You may not use this file except in
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* compliance with the License. The rights granted to you under the License
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* may not be used to create, or enable the creation or redistribution of,
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* unlawful or unlicensed copies of an Apple operating system, or to
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* circumvent, violate, or enable the circumvention or violation of, any
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* terms of an Apple operating system software license agreement.
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*
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* Please obtain a copy of the License at
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* http://www.opensource.apple.com/apsl/ and read it before using this file.
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*
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* The Original Code and all software distributed under the License are
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* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
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* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
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* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
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* Please see the License for the specific language governing rights and
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* limitations under the License.
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*
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* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
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*/
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#ifndef __MUNGE_H__
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#define __MUNGE_H__
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/*
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* Syscall argument mungers.
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*
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* The data to be munged has been explicitly copied in to the argument
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* area, and will be munged in place in the uu_arg[] array. These
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* mungers are for 32-bit app's syscalls, since 64-bit args are copied
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* from the save area to the uu_args in the order the
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* syscall ABI calls for.
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*
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* The issue is that the incoming args are 32-bit, but we must expand
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* them in place into 64-bit args, as if they were from a 64-bit process.
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*
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* There are several functions in this file with the following prototype
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*
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* void munge_XXXX(void *uu_args);
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*
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* The name of the function encodes the number and type of the parameters,
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* as follows:
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*
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* w = a 32-bit value such as an int or a 32-bit ptr, that does not
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* require sign extension. These are handled by zeroing a word
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* of output, and copying a word from input to output.
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*
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* s = a 32-bit value such as a long, which must be sign-extended to
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* a 64-bit long-long in the uu_args. These are handled by
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* loading a word of input and sign extending it to a double,
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* and storing two words of output.
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*
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* l = a 64-bit long-long. These are handled by copying two words
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* of input to the output.
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*
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* For example, "munge_wls" takes a word, a long-long, and a word. This
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* takes four words in the uu_arg[] area: the first word is in one, the
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* long-long takes two, and the final word is in the fourth. We store six
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* words: the low word is left in place, followed by a 0, followed by the
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* two words of the long-long, followed by the low word and the sign extended
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* high word of the preceeding low word.
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*
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* Because this is an in-place modification, we actually start at the end
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* of uu_arg[] and work our way back to the beginning of the array.
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*/
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#if __arm__ && (__BIGGEST_ALIGNMENT__ > 4)
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int munge_w(const void *regs, void *args);
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int munge_ww(const void *regs, void *args);
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int munge_www(const void *regs, void *args);
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int munge_wwww(const void *regs, void *args);
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int munge_wwwww(const void *regs, void *args);
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int munge_wwwwww(const void *regs, void *args);
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int munge_wwwwwww(const void *regs, void *args);
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int munge_wwwwwwww(const void *regs, void *args);
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int munge_wl(const void *regs, void *args);
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int munge_wwl(const void *regs, void *args);
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int munge_wwlw(const void *regs, void *args);
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int munge_wwlll(const void *regs, void *args);
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int munge_wwllww(const void *regs, void *args);
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int munge_wlw(const void *regs, void *args);
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int munge_wlww(const void *regs, void *args);
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int munge_wlwwwl(const void *regs, void *args);
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int munge_wlwwwll(const void *regs, void *args);
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int munge_wlwwwllw(const void *regs, void *args);
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int munge_wlwwlwlw(const void *regs, void *args);
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int munge_wll(const void *regs, void *args);
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int munge_wllww(const void *regs, void *args);
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int munge_wlll(const void *regs, void *args);
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int munge_wlllww(const void *regs, void *args);
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int munge_wllll(const void *regs, void *args);
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int munge_wllwwll(const void *regs, void *args);
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int munge_wwwlw(const void *regs, void *args);
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int munge_wwwlww(const void *regs, void *args);
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int munge_wwwlwww(const void *regs, void *args);
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int munge_wwwl(const void *regs, void *args);
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int munge_wwwwlw(const void *regs, void *args);
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int munge_wwwwllww(const void *regs, void *args);
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int munge_wwwwl(const void *regs, void *args);
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int munge_wwwwwl(const void *regs, void *args);
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int munge_wwwwwlww(const void *regs, void *args);
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int munge_wwwwwllw(const void *regs, void *args);
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int munge_wwwwwlll(const void *regs, void *args);
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int munge_wwwwwwl(const void *regs, void *args);
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int munge_wwwwwwlw(const void *regs, void *args);
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int munge_wwwwwwll(const void *regs, void *args);
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int munge_wsw(const void *regs, void *args);
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int munge_wws(const void *regs, void *args);
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int munge_wwws(const void *regs, void *args);
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int munge_wwwsw(const void *regs, void *args);
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int munge_llllll(const void *regs, void *args);
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int munge_l(const void *regs, void *args);
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int munge_ll(const void *regs, void *args);
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int munge_lw(const void *regs, void *args);
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int munge_lwww(const void *regs, void *args);
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int munge_lwwwwwww(const void *regs, void *args);
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int munge_wwlww(const void *regs, void *args);
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int munge_wwlwww(const void *regs, void *args);
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int munge_wwlwwwl(const void *regs, void *args);
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#else
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void munge_w(void *args);
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void munge_ww(void *args);
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void munge_www(void *args);
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void munge_wwww(void *args);
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void munge_wwwww(void *args);
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void munge_wwwwww(void *args);
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void munge_wwwwwww(void *args);
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void munge_wwwwwwww(void *args);
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void munge_wl(void *args);
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void munge_wwl(void *args);
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void munge_wwlw(void *args);
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void munge_wwlll(void *args);
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void munge_wwllww(void *args);
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void munge_wlw(void *args);
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void munge_wlww(void *args);
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void munge_wlwwwl(void *args);
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void munge_wlwwwll(void *args);
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void munge_wlwwwllw(void *args);
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void munge_wlwwlwlw(void *args);
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void munge_wll(void *args);
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void munge_wllww(void *args);
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void munge_wlll(void *args);
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void munge_wlllww(void *args);
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void munge_wllll(void *args);
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void munge_wllwwll(void *args);
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void munge_wwwlw(void *args);
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void munge_wwwlww(void *args);
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void munge_wwwlwww(void *args);
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void munge_wwwl(void *args);
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void munge_wwwwlw(void *args);
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void munge_wwwwllww(void *args);
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void munge_wwwwl(void *args);
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void munge_wwwwwl(void *args);
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void munge_wwwwwlww(void *args);
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void munge_wwwwwllw(void *args);
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void munge_wwwwwlll(void *args);
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void munge_wwwwwwl(void *args);
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void munge_wwwwwwlw(void *args);
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void munge_wwwwwwll(void *args);
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void munge_wsw(void *args);
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void munge_wws(void *args);
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void munge_wwws(void *args);
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void munge_wwwsw(void *args);
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void munge_llllll(void *args);
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void munge_llll(void *args);
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void munge_l(void *args);
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void munge_ll(void *args);
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void munge_lw(void *args);
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void munge_lwww(void *args);
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void munge_lwwwwwww(void *args);
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void munge_wwlww(void *args);
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void munge_wwlwww(void *args);
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void munge_wwlwwwl(void *args);
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#endif /* __arm__ && (__BIGGEST_ALIGNMENT__ > 4) */
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#endif /* __MUNGE_H__ */
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