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1 /*
2  * Some ECOFF definitions.
3  */
4 typedef struct filehdr {
5 	unsigned short	f_magic;	/* magic number */
6 	unsigned short	f_nscns;	/* number of sections */
7 	long		f_timdat;	/* time & date stamp */
8 	long		f_symptr;	/* file pointer to symbolic header */
9 	long		f_nsyms;	/* sizeof(symbolic hdr) */
10 	unsigned short	f_opthdr;	/* sizeof(optional hdr) */
11 	unsigned short	f_flags;	/* flags */
12 } FILHDR;
13 #define FILHSZ	sizeof(FILHDR)
14 
15 #define MIPSEBMAGIC	0x160
16 #define MIPSELMAGIC	0x162
17 
18 typedef struct scnhdr {
19 	char		s_name[8];	/* section name */
20 	long		s_paddr;	/* physical address, aliased s_nlib */
21 	long		s_vaddr;	/* virtual address */
22 	long		s_size;		/* section size */
23 	long		s_scnptr;	/* file ptr to raw data for section */
24 	long		s_relptr;	/* file ptr to relocation */
25 	long		s_lnnoptr;	/* file ptr to gp histogram */
26 	unsigned short	s_nreloc;	/* number of relocation entries */
27 	unsigned short	s_nlnno;	/* number of gp histogram entries */
28 	long		s_flags;	/* flags */
29 } SCNHDR;
30 #define SCNHSZ		sizeof(SCNHDR)
31 #define SCNROUND	((long)16)
32 
33 typedef struct aouthdr {
34 	short	magic;		/* see above				*/
35 	short	vstamp;		/* version stamp			*/
36 	long	tsize;		/* text size in bytes, padded to DW bdry*/
37 	long	dsize;		/* initialized data "  "		*/
38 	long	bsize;		/* uninitialized data "	  "		*/
39 	long	entry;		/* entry pt.				*/
40 	long	text_start;	/* base of text used for this file	*/
41 	long	data_start;	/* base of data used for this file	*/
42 	long	bss_start;	/* base of bss used for this file	*/
43 	long	gprmask;	/* general purpose register mask	*/
44 	long	cprmask[4];	/* co-processor register masks		*/
45 	long	gp_value;	/* the gp value used for this object	*/
46 } AOUTHDR;
47 #define AOUTHSZ sizeof(AOUTHDR)
48 
49 #define OMAGIC		0407
50 #define NMAGIC		0410
51 #define ZMAGIC		0413
52 #define SMAGIC		0411
53 #define LIBMAGIC	0443
54 
55 #define N_TXTOFF(f, a) \
56  ((a).magic == ZMAGIC || (a).magic == LIBMAGIC ? 0 : \
57   ((a).vstamp < 23 ? \
58    ((FILHSZ + AOUTHSZ + (f).f_nscns * SCNHSZ + 7) & 0xfffffff8) : \
59    ((FILHSZ + AOUTHSZ + (f).f_nscns * SCNHSZ + SCNROUND-1) & ~(SCNROUND-1)) ) )
60 #define N_DATOFF(f, a) \
61   N_TXTOFF(f, a) + (a).tsize;
62