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 < 0x100000000 \ 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__ */ 107