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Bilddatei flat.h Sprache: C |
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/* SPDX-License-Identifier: GPL-2.0 */
/* * Copyright (C) 2002-2003 David McCullough <davidm@snapgear.com> * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com> * The Silver Hammer Group, Ltd. * * This file provides the definitions and structures needed to * support uClinux flat-format executables. */ #ifndef _LINUX_FLAT_H #define _LINUX_FLAT_H #define FLAT_VERSION 0x00000004L /* * To make everything easier to port and manage cross platform * development, all fields are in network byte order. */ struct flat_hdr { char magic[4]; __be32 rev; /* version (as above) */ __be32 entry; /* Offset of first executable instruction with text segment from beginning of file */ __be32 data_start; /* Offset of data segment from beginning of file */ __be32 data_end; /* Offset of end of data segment from beginning of file */ __be32 bss_end; /* Offset of end of bss segment from beginning of file */ /* (It is assumed that data_end through bss_end forms the bss segment.) */ __be32 stack_size; /* Size of stack, in bytes */ __be32 reloc_start; /* Offset of relocation records from beginning of file */ __be32 reloc_count; /* Number of relocation records */ __be32 flags; __be32 build_date; /* When the program/library was built */ __u32 filler[5]; /* Reservered, set to zero */ }; #define FLAT_FLAG_RAM 0x0001 /* load program entirely into RAM */ #define FLAT_FLAG_GOTPIC 0x0002 /* program is PIC with GOT */ #define FLAT_FLAG_GZIP 0x0004 /* all but the header is compressed */ #define FLAT_FLAG_GZDATA 0x0008 /* only data/relocs are compressed (for XIP) */ #define FLAT_FLAG_KTRACE 0x0010 /* output useful kernel trace for debugging */ /* * While it would be nice to keep this header clean, users of older * tools still need this support in the kernel. So this section is * purely for compatibility with old tool chains. * * DO NOT make changes or enhancements to the old format please, just work * with the format above, except to fix bugs with old format support. */ #define OLD_FLAT_VERSION 0x00000002L #define OLD_FLAT_RELOC_TYPE_TEXT 0 #define OLD_FLAT_RELOC_TYPE_DATA 1 #define OLD_FLAT_RELOC_TYPE_BSS 2 typedef union { u32 value; struct { #if defined(__LITTLE_ENDIAN_BITFIELD) || \ (defined(mc68000) && !defined(CONFIG_COLDFIRE)) s32 offset : 30; u32 type : 2; # elif defined(__BIG_ENDIAN_BITFIELD) u32 type : 2; s32 offset : 30; # else # error "Unknown bitfield order for flat files." # endif } reloc; } flat_v2_reloc_t; #endif /* _LINUX_FLAT_H */ ¤ Dauer der Verarbeitung: 0.13 Sekunden (vorverarbeitet) ¤*© Formatika GbR, Deutschland |
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