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/*
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* Copyright (C) 2002-2005 David McCullough <davidm@snapgear.com>
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* Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com>
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* The Silver Hammer Group, Ltd.
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*
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* This file provides the definitions and structures needed to
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* support uClinux flat-format executables.
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*
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* This is Free Software, under the GNU Public Licence v2 or greater.
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*
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*/
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#ifndef _LINUX_FLAT_H
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#define _LINUX_FLAT_H
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#ifdef __KERNEL__
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#include <linux/types.h>
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#include <asm/flat.h>
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#endif
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#include <stdint.h>
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#ifdef CONFIG_BINFMT_SHARED_FLAT
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#define MAX_SHARED_LIBS (4)
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#else
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#define MAX_SHARED_LIBS (1)
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#endif
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/*
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* To make everything easier to port and manage cross platform
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* development, all fields are in network byte order.
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*/
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#define EMCOREAPP_HEADER_VERSION 1
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struct emcoreapp_header
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{
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char signature[8];
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uint32_t version version;
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off_t textstart;
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size_t textsize;
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size_t bsssize;
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size_t stacksize;
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off_t entrypoint;
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off_t relocstart;
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uint32_t reloccount;
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uint32_t flags;
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uint32_t creationtime;
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};
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theseven |
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theseven |
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#define HEADER_FLAG_UCL 0x00000001 /* all but the header is compressed */
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theseven |
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#ifdef __KERNEL__ /* so systems without linux headers can compile the apps */
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/*
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* While it would be nice to keep this header clean, users of older
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* tools still need this support in the kernel. So this section is
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* purely for compatibility with old tool chains.
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*
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* DO NOT make changes or enhancements to the old format please, just work
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* with the format above, except to fix bugs with old format support.
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*/
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#include <asm/byteorder.h>
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#define OLD_FLAT_VERSION 0x00000002L
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#define OLD_FLAT_RELOC_TYPE_TEXT 0
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#define OLD_FLAT_RELOC_TYPE_DATA 1
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#define OLD_FLAT_RELOC_TYPE_BSS 2
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typedef union {
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uint32_t value;
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struct {
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# if defined(mc68000) && !defined(CONFIG_COLDFIRE)
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int32_t offset : 30;
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uint32_t type : 2;
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# define OLD_FLAT_FLAG_RAM 0x1 /* load program entirely into RAM */
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# elif defined(__BIG_ENDIAN_BITFIELD)
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uint32_t type : 2;
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int32_t offset : 30;
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# define OLD_FLAT_FLAG_RAM 0x1 /* load program entirely into RAM */
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# elif defined(__LITTLE_ENDIAN_BITFIELD)
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int32_t offset : 30;
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uint32_t type : 2;
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# define OLD_FLAT_FLAG_RAM 0x1 /* load program entirely into RAM */
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# else
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# error "Unknown bitfield order for flat files."
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# endif
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} reloc;
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} flat_v2_reloc_t;
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#endif /* __KERNEL__ */
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#endif /* _LINUX_FLAT_H */
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/* this __MUST__ be at the VERY end of the file - do NOT move!!
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* Local Variables:
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* c-basic-offset: 4
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* tab-width: 8
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* end:
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* vi: tabstop=8 shiftwidth=4 textwidth=79 noexpandtab
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*/
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