/* * 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. */#define	FLAT_VERSION			0x00000004L#ifdef CONFIG_BINFMT_SHARED_FLAT#define	MAX_SHARED_LIBS			(4)#else#define	MAX_SHARED_LIBS			(1)#endif/* * To make everything easier to port and manage cross platform * development,  all fields are in network byte order. */struct flat_hdr {	char magic[4];	abi_ulong rev;          /* version (as above) */	abi_ulong entry;        /* Offset of first executable instruction                                   with text segment from beginning of file */	abi_ulong data_start;   /* Offset of data segment from beginning of                                   file */	abi_ulong data_end;     /* Offset of end of data segment                                   from beginning of file */	abi_ulong 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.) */	abi_ulong stack_size;   /* Size of stack, in bytes */	abi_ulong reloc_start;  /* Offset of relocation records from                                   beginning of file */	abi_ulong reloc_count;  /* Number of relocation records */	abi_ulong flags;	abi_ulong build_date;   /* When the program/library was built */	abi_ulong 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#   	define OLD_FLAT_FLAG_RAM    0x1 /* load program entirely into RAM */