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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071727374757677787980/* 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 */