Commit | Line | Data |
---|---|---|
1da177e4 LT |
1 | #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 | ||
15 | struct 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 | ||
25 | struct 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 | ||
39 | struct 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 | ||
53 | struct 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 | ||
104 | #endif | |
105 | ||
106 | #endif /* __A_OUT_GNU_H__ */ |