xref: /linux/arch/alpha/include/uapi/asm/a.out.h (revision 498495dba268b20e8eadd7fe93c140c68b6cc9d2)
1 /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
2 #ifndef _UAPI__ALPHA_A_OUT_H__
3 #define _UAPI__ALPHA_A_OUT_H__
4 
5 #include <linux/types.h>
6 
7 /*
8  * OSF/1 ECOFF header structs.  ECOFF files consist of:
9  * 	- a file header (struct filehdr),
10  *	- an a.out header (struct aouthdr),
11  *	- one or more section headers (struct scnhdr).
12  *	  The filhdr's "f_nscns" field contains the
13  *	  number of section headers.
14  */
15 
16 struct filehdr
17 {
18 	/* OSF/1 "file" header */
19 	__u16 f_magic, f_nscns;
20 	__u32 f_timdat;
21 	__u64 f_symptr;
22 	__u32 f_nsyms;
23 	__u16 f_opthdr, f_flags;
24 };
25 
26 struct aouthdr
27 {
28 	__u64 info;		/* after that it looks quite normal.. */
29 	__u64 tsize;
30 	__u64 dsize;
31 	__u64 bsize;
32 	__u64 entry;
33 	__u64 text_start;	/* with a few additions that actually make sense */
34 	__u64 data_start;
35 	__u64 bss_start;
36 	__u32 gprmask, fprmask;	/* bitmask of general & floating point regs used in binary */
37 	__u64 gpvalue;
38 };
39 
40 struct scnhdr
41 {
42 	char	s_name[8];
43 	__u64	s_paddr;
44 	__u64	s_vaddr;
45 	__u64	s_size;
46 	__u64	s_scnptr;
47 	__u64	s_relptr;
48 	__u64	s_lnnoptr;
49 	__u16	s_nreloc;
50 	__u16	s_nlnno;
51 	__u32	s_flags;
52 };
53 
54 struct exec
55 {
56 	/* OSF/1 "file" header */
57 	struct filehdr		fh;
58 	struct aouthdr		ah;
59 };
60 
61 /*
62  * Define's so that the kernel exec code can access the a.out header
63  * fields...
64  */
65 #define	a_info		ah.info
66 #define	a_text		ah.tsize
67 #define a_data		ah.dsize
68 #define a_bss		ah.bsize
69 #define a_entry		ah.entry
70 #define a_textstart	ah.text_start
71 #define	a_datastart	ah.data_start
72 #define	a_bssstart	ah.bss_start
73 #define	a_gprmask	ah.gprmask
74 #define a_fprmask	ah.fprmask
75 #define a_gpvalue	ah.gpvalue
76 
77 #define N_TXTADDR(x) ((x).a_textstart)
78 #define N_DATADDR(x) ((x).a_datastart)
79 #define N_BSSADDR(x) ((x).a_bssstart)
80 #define N_DRSIZE(x) 0
81 #define N_TRSIZE(x) 0
82 #define N_SYMSIZE(x) 0
83 
84 #define AOUTHSZ		sizeof(struct aouthdr)
85 #define SCNHSZ		sizeof(struct scnhdr)
86 #define SCNROUND	16
87 
88 #define N_TXTOFF(x) \
89   ((long) N_MAGIC(x) == ZMAGIC ? 0 : \
90    (sizeof(struct exec) + (x).fh.f_nscns*SCNHSZ + SCNROUND - 1) & ~(SCNROUND - 1))
91 
92 #endif /* _UAPI__ALPHA_A_OUT_H__ */
93