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Linus Torvalds1da177e2005-04-16 15:20:36 -07001#ifndef __ALPHA_A_OUT_H__
2#define __ALPHA_A_OUT_H__
3
4#include <linux/types.h>
5
6/*
7 * OSF/1 ECOFF header structs. ECOFF files consist of:
8 * - a file header (struct filehdr),
9 * - an a.out header (struct aouthdr),
10 * - one or more section headers (struct scnhdr).
11 * The filhdr's "f_nscns" field contains the
12 * number of section headers.
13 */
14
15struct filehdr
16{
17 /* OSF/1 "file" header */
18 __u16 f_magic, f_nscns;
19 __u32 f_timdat;
20 __u64 f_symptr;
21 __u32 f_nsyms;
22 __u16 f_opthdr, f_flags;
23};
24
25struct aouthdr
26{
27 __u64 info; /* after that it looks quite normal.. */
28 __u64 tsize;
29 __u64 dsize;
30 __u64 bsize;
31 __u64 entry;
32 __u64 text_start; /* with a few additions that actually make sense */
33 __u64 data_start;
34 __u64 bss_start;
35 __u32 gprmask, fprmask; /* bitmask of general & floating point regs used in binary */
36 __u64 gpvalue;
37};
38
39struct scnhdr
40{
41 char s_name[8];
42 __u64 s_paddr;
43 __u64 s_vaddr;
44 __u64 s_size;
45 __u64 s_scnptr;
46 __u64 s_relptr;
47 __u64 s_lnnoptr;
48 __u16 s_nreloc;
49 __u16 s_nlnno;
50 __u32 s_flags;
51};
52
53struct exec
54{
55 /* OSF/1 "file" header */
56 struct filehdr fh;
57 struct aouthdr ah;
58};
59
60/*
61 * Define's so that the kernel exec code can access the a.out header
62 * fields...
63 */
64#define a_info ah.info
65#define a_text ah.tsize
66#define a_data ah.dsize
67#define a_bss ah.bsize
68#define a_entry ah.entry
69#define a_textstart ah.text_start
70#define a_datastart ah.data_start
71#define a_bssstart ah.bss_start
72#define a_gprmask ah.gprmask
73#define a_fprmask ah.fprmask
74#define a_gpvalue ah.gpvalue
75
76#define N_TXTADDR(x) ((x).a_textstart)
77#define N_DATADDR(x) ((x).a_datastart)
78#define N_BSSADDR(x) ((x).a_bssstart)
79#define N_DRSIZE(x) 0
80#define N_TRSIZE(x) 0
81#define N_SYMSIZE(x) 0
82
83#define AOUTHSZ sizeof(struct aouthdr)
84#define SCNHSZ sizeof(struct scnhdr)
85#define SCNROUND 16
86
87#define N_TXTOFF(x) \
88 ((long) N_MAGIC(x) == ZMAGIC ? 0 : \
89 (sizeof(struct exec) + (x).fh.f_nscns*SCNHSZ + SCNROUND - 1) & ~(SCNROUND - 1))
90
91#ifdef __KERNEL__
92
93/* Assume that start addresses below 4G belong to a TASO application.
94 Unfortunately, there is no proper bit in the exec header to check.
95 Worse, we have to notice the start address before swapping to use
96 /sbin/loader, which of course is _not_ a TASO application. */
97#define SET_AOUT_PERSONALITY(BFPM, EX) \
98 set_personality (((BFPM->sh_bang || EX.ah.entry < 0x100000000L \
99 ? ADDR_LIMIT_32BIT : 0) | PER_OSF4))
100
101#define STACK_TOP \
102 (current->personality & ADDR_LIMIT_32BIT ? 0x80000000 : 0x00120000000UL)
103
Peter Zijlstrab1117572007-07-19 01:48:14 -0700104#define STACK_TOP_MAX 0x00120000000UL
105
Linus Torvalds1da177e2005-04-16 15:20:36 -0700106#endif
107
108#endif /* __A_OUT_GNU_H__ */