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88 lines
3.2 KiB
C
88 lines
3.2 KiB
C
/* $NetBSD: linux32_exec.h,v 1.6 2014/02/21 07:53:53 maxv Exp $ */
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/*-
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* Copyright (c) 2006 Emmanuel Dreyfus, 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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* 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 Emmanuel Dreyfus
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* 4. The name of the author may not be used to endorse or promote
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* products derived from this software without specific prior written
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* permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE THE AUTHOR AND CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR 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 _AMD64_LINUX32_EXEC_H
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#define _AMD64_LINUX32_EXEC_H
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#include <sys/exec_elf.h>
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#define LINUX32_M_I386 100
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#define LINUX32_MID_MACHINE LINUX_M_I386
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#define LINUX32_USRSTACK 0xC0000000
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#define LINUX32_DEBUGLINK_SIGNATURE 1
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/* Counted from common/linux32_exec_elf32.c */
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#define LINUX32_ELF_AUX_ENTRIES 15
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#define LINUX32_RANDOM_BYTES 16 /* 16 bytes for AT_RANDOM */
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#if 0
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/* Hardware platform identifier string */
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#define LINUX32_PLATFORM "i686"
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#define LINUX32_CPUCAP (cpu_feature[0])
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/* vsyscall assembly */
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static char linux32_kernel_vsyscall[] = {
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0x55, /* push %ebp */ \
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0x89, 0xcd, /* mov %ecx,%ebp */ \
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0x0f, 0x05, /* syscall */ \
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0xb9, 0x7b, 0x00, 0x00, 0x00, /* mov $0x7b,%ecx */ \
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0x8e, 0xd1, /* movl %ecx,%ss */ \
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0x89, 0xe9, /* mov %ebp,%ecx */ \
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0x5d, /* pop %ebp */ \
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0xc3, /* ret */ \
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};
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/* The extra data (ELF auxiliary table and platform name) on stack */
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struct linux32_extra_stack_data {
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Aux32Info ai[LINUX32_ELF_AUX_ENTRIES];
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char hw_platform[sizeof(LINUX32_PLATFORM)];
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int pad;
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Elf32_Ehdr elfhdr;
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char kernel_vsyscall[sizeof(linux32_kernel_vsyscall)];
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};
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#define LINUX32_ELF_AUX_ARGSIZ sizeof(struct linux32_extra_stack_data)
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#endif
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#define LINUX32_ELF_AUX_ARGSIZ \
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(howmany(LINUX32_ELF_AUX_ENTRIES * sizeof(Aux32Info), sizeof(Elf32_Addr)) + LINUX32_RANDOM_BYTES)
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#ifdef _KERNEL
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int linux32_exec_setup_stack(struct lwp *, struct exec_package *);
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#endif
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#endif /* !_AMD64_LINUX32_EXEC_H */
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