Commit | Line | Data |
---|---|---|
607ca46e DH |
1 | /* |
2 | * Copyright (C) 2002-2003 David McCullough <davidm@snapgear.com> | |
3 | * Copyright (C) 1998 Kenneth Albanowski <kjahds@kjahds.com> | |
4 | * The Silver Hammer Group, Ltd. | |
5 | * | |
6 | * This file provides the definitions and structures needed to | |
7 | * support uClinux flat-format executables. | |
8 | */ | |
9 | ||
10 | #ifndef _UAPI_LINUX_FLAT_H | |
11 | #define _UAPI_LINUX_FLAT_H | |
12 | ||
13 | ||
14 | #define FLAT_VERSION 0x00000004L | |
15 | ||
16 | #ifdef CONFIG_BINFMT_SHARED_FLAT | |
17 | #define MAX_SHARED_LIBS (4) | |
18 | #else | |
19 | #define MAX_SHARED_LIBS (1) | |
20 | #endif | |
21 | ||
22 | /* | |
23 | * To make everything easier to port and manage cross platform | |
24 | * development, all fields are in network byte order. | |
25 | */ | |
26 | ||
27 | struct flat_hdr { | |
28 | char magic[4]; | |
29 | unsigned long rev; /* version (as above) */ | |
30 | unsigned long entry; /* Offset of first executable instruction | |
31 | with text segment from beginning of file */ | |
32 | unsigned long data_start; /* Offset of data segment from beginning of | |
33 | file */ | |
34 | unsigned long data_end; /* Offset of end of data segment | |
35 | from beginning of file */ | |
36 | unsigned long bss_end; /* Offset of end of bss segment from beginning | |
37 | of file */ | |
38 | ||
39 | /* (It is assumed that data_end through bss_end forms the bss segment.) */ | |
40 | ||
41 | unsigned long stack_size; /* Size of stack, in bytes */ | |
42 | unsigned long reloc_start; /* Offset of relocation records from | |
43 | beginning of file */ | |
44 | unsigned long reloc_count; /* Number of relocation records */ | |
45 | unsigned long flags; | |
46 | unsigned long build_date; /* When the program/library was built */ | |
47 | unsigned long filler[5]; /* Reservered, set to zero */ | |
48 | }; | |
49 | ||
50 | #define FLAT_FLAG_RAM 0x0001 /* load program entirely into RAM */ | |
51 | #define FLAT_FLAG_GOTPIC 0x0002 /* program is PIC with GOT */ | |
52 | #define FLAT_FLAG_GZIP 0x0004 /* all but the header is compressed */ | |
53 | #define FLAT_FLAG_GZDATA 0x0008 /* only data/relocs are compressed (for XIP) */ | |
54 | #define FLAT_FLAG_KTRACE 0x0010 /* output useful kernel trace for debugging */ | |
55 | ||
56 | ||
57 | ||
58 | #endif /* _UAPI_LINUX_FLAT_H */ |