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linux32_exec.h revision 1.1.16.2
      1  1.1.16.2  yamt /*	$NetBSD: linux32_exec.h,v 1.1.16.2 2006/06/21 14:59:27 yamt Exp $ */
      2  1.1.16.2  yamt 
      3  1.1.16.2  yamt /*-
      4  1.1.16.2  yamt  * Copyright (c) 2006 Emmanuel Dreyfus, all rights reserved.
      5  1.1.16.2  yamt  *
      6  1.1.16.2  yamt  * Redistribution and use in source and binary forms, with or without
      7  1.1.16.2  yamt  * modification, are permitted provided that the following conditions
      8  1.1.16.2  yamt  * are met:
      9  1.1.16.2  yamt  * 1. Redistributions of source code must retain the above copyright
     10  1.1.16.2  yamt  *    notice, this list of conditions and the following disclaimer.
     11  1.1.16.2  yamt  * 2. Redistributions in binary form must reproduce the above copyright
     12  1.1.16.2  yamt  *    notice, this list of conditions and the following disclaimer in the
     13  1.1.16.2  yamt  *    documentation and/or other materials provided with the distribution.
     14  1.1.16.2  yamt  * 3. All advertising materials mentioning features or use of this software
     15  1.1.16.2  yamt  *    must display the following acknowledgement:
     16  1.1.16.2  yamt  *	This product includes software developed by Emmanuel Dreyfus
     17  1.1.16.2  yamt  * 4. The name of the author may not be used to endorse or promote
     18  1.1.16.2  yamt  *    products derived from this software without specific prior written
     19  1.1.16.2  yamt  *    permission.
     20  1.1.16.2  yamt  *
     21  1.1.16.2  yamt  * THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS''
     22  1.1.16.2  yamt  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     23  1.1.16.2  yamt  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     24  1.1.16.2  yamt  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS
     25  1.1.16.2  yamt  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     26  1.1.16.2  yamt  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     27  1.1.16.2  yamt  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     28  1.1.16.2  yamt  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     29  1.1.16.2  yamt  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     30  1.1.16.2  yamt  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     31  1.1.16.2  yamt  * POSSIBILITY OF SUCH DAMAGE.
     32  1.1.16.2  yamt  */
     33  1.1.16.2  yamt #ifndef _AMD64_LINUX32_EXEC_H
     34  1.1.16.2  yamt #define _AMD64_LINUX32_EXEC_H
     35  1.1.16.2  yamt 
     36  1.1.16.2  yamt #include <sys/exec_elf.h>
     37  1.1.16.2  yamt 
     38  1.1.16.2  yamt #define LINUX32_M_I386		100
     39  1.1.16.2  yamt #define LINUX32_MID_MACHINE	LINUX_M_I386
     40  1.1.16.2  yamt #define LINUX32_USRSTACK	0xC0000000
     41  1.1.16.2  yamt 
     42  1.1.16.2  yamt #define LINUX32_GCC_SIGNATURE	1
     43  1.1.16.2  yamt 
     44  1.1.16.2  yamt #define LINUX32_ELF_AUX_ENTRIES 18
     45  1.1.16.2  yamt 
     46  1.1.16.2  yamt /* Hardware platform identifier string */
     47  1.1.16.2  yamt #define LINUX32_PLATFORM "i686"
     48  1.1.16.2  yamt 
     49  1.1.16.2  yamt #define LINUX32_CPUCAP (curcpu()->ci_feature_flags)
     50  1.1.16.2  yamt 
     51  1.1.16.2  yamt /* vsyscall assembly */
     52  1.1.16.2  yamt static char linux32_kernel_vsyscall[] = {
     53  1.1.16.2  yamt 	0x55,				/* push   %ebp */		\
     54  1.1.16.2  yamt 	0x89, 0xcd,			/* mov    %ecx,%ebp */ 		\
     55  1.1.16.2  yamt 	0x0f, 0x05,			/* syscall */			\
     56  1.1.16.2  yamt 	0xb9, 0x2b, 0x00, 0x00, 0x00,	/* mov    $0x2b,%ecx */		\
     57  1.1.16.2  yamt 	0x8e, 0xd1,			/* movl   %ecx,%ss */		\
     58  1.1.16.2  yamt 	0x89, 0xe9,			/* mov    %ebp,%ecx */		\
     59  1.1.16.2  yamt 	0x5d,				/* pop    %ebp */		\
     60  1.1.16.2  yamt 	0xc3,				/* ret */			\
     61  1.1.16.2  yamt };
     62  1.1.16.2  yamt 
     63  1.1.16.2  yamt /* The extra data (ELF auxiliary table and platform name) on stack */
     64  1.1.16.2  yamt struct linux32_extra_stack_data {
     65  1.1.16.2  yamt         Aux32Info ai[LINUX32_ELF_AUX_ENTRIES];
     66  1.1.16.2  yamt         char hw_platform[sizeof(LINUX32_PLATFORM)];
     67  1.1.16.2  yamt 	int pad;
     68  1.1.16.2  yamt 	Elf32_Ehdr elfhdr;
     69  1.1.16.2  yamt 	char kernel_vsyscall[sizeof(linux32_kernel_vsyscall)];
     70  1.1.16.2  yamt };
     71  1.1.16.2  yamt #define LINUX32_ELF_AUX_ARGSIZ sizeof(struct linux32_extra_stack_data)
     72  1.1.16.2  yamt 
     73  1.1.16.2  yamt #ifdef _KERNEL
     74  1.1.16.2  yamt int linux32_exec_setup_stack(struct lwp *, struct exec_package *);
     75  1.1.16.2  yamt #endif
     76  1.1.16.2  yamt 
     77  1.1.16.2  yamt #endif /* !_AMD64_LINUX32_EXEC_H */
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