diff options
| author | Alan Cox <alan@lxorguk.ukuu.org.uk> | 2002-10-31 19:44:22 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@home.transmeta.com> | 2002-10-31 19:44:22 -0800 |
| commit | da11bc892fb88a66e4fe151a76eb0a82762116c9 (patch) | |
| tree | 1c9f3825795cd869e33490389638c6d39283c440 /include/linux/flat.h | |
| parent | be3e0ada7b264efa8714b1ff6203c2c29fcc61c5 (diff) | |
[PATCH] UCLINUX (forgot one) - header file for binfmt_flat
Diffstat (limited to 'include/linux/flat.h')
| -rw-r--r-- | include/linux/flat.h | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/include/linux/flat.h b/include/linux/flat.h new file mode 100644 index 000000000000..6870eacdaaae --- /dev/null +++ b/include/linux/flat.h @@ -0,0 +1,83 @@ + +/* Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com> + * The Silver Hammer Group, Ltd. + * Copyright (C) 2002 David McCullough <davidm@snapgear.com> + */ + +#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]; + unsigned long rev; /* version (as above) */ + unsigned long entry; /* Offset of first executable instruction + with text segment from beginning of file */ + unsigned long data_start; /* Offset of data segment from beginning of + file */ + unsigned long data_end; /* Offset of end of data segment + from beginning of file */ + unsigned long 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.) */ + + unsigned long stack_size; /* Size of stack, in bytes */ + unsigned long reloc_start; /* Offset of relocation records from + beginning of file */ + unsigned long reloc_count; /* Number of relocation records */ + unsigned long flags; + unsigned long build_date; /* When the program/library was built */ + unsigned long 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) */ + + +/* + * 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. + */ + +#include <asm/byteorder.h> + +#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 { + unsigned long value; + struct { +# if defined(mc68000) && !defined(CONFIG_COLDFIRE) + signed long offset : 30; + unsigned long type : 2; +# define OLD_FLAT_FLAG_RAM 0x1 /* load program entirely into RAM */ +# elif defined(__BIG_ENDIAN_BITFIELD) + unsigned long type : 2; + signed long offset : 30; +# define OLD_FLAT_FLAG_RAM 0x1 /* load program entirely into RAM */ +# elif defined(__LITTLE_ENDIAN_BITFIELD) + signed long offset : 30; + unsigned long type : 2; +# define OLD_FLAT_FLAG_RAM 0x1 /* load program entirely into RAM */ +# else +# error "Unknown bitfield order for flat files." +# endif + } reloc; +} flat_v2_reloc_t; + +#endif /* _LINUX_FLAT_H */ |
