107 lines
2.5 KiB
C
107 lines
2.5 KiB
C
#ifndef __ALPHA_A_OUT_H__
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#define __ALPHA_A_OUT_H__
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#include <linux/types.h>
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/*
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* OSF/1 ECOFF header structs. ECOFF files consist of:
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* - a file header (struct filehdr),
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* - an a.out header (struct aouthdr),
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* - one or more section headers (struct scnhdr).
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* The filhdr's "f_nscns" field contains the
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* number of section headers.
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*/
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struct filehdr
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{
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/* OSF/1 "file" header */
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__u16 f_magic, f_nscns;
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__u32 f_timdat;
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__u64 f_symptr;
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__u32 f_nsyms;
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__u16 f_opthdr, f_flags;
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};
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struct aouthdr
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{
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__u64 info; /* after that it looks quite normal.. */
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__u64 tsize;
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__u64 dsize;
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__u64 bsize;
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__u64 entry;
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__u64 text_start; /* with a few additions that actually make sense */
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__u64 data_start;
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__u64 bss_start;
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__u32 gprmask, fprmask; /* bitmask of general & floating point regs used in binary */
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__u64 gpvalue;
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};
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struct scnhdr
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{
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char s_name[8];
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__u64 s_paddr;
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__u64 s_vaddr;
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__u64 s_size;
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__u64 s_scnptr;
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__u64 s_relptr;
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__u64 s_lnnoptr;
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__u16 s_nreloc;
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__u16 s_nlnno;
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__u32 s_flags;
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};
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struct exec
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{
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/* OSF/1 "file" header */
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struct filehdr fh;
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struct aouthdr ah;
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};
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/*
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* Define's so that the kernel exec code can access the a.out header
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* fields...
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*/
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#define a_info ah.info
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#define a_text ah.tsize
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#define a_data ah.dsize
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#define a_bss ah.bsize
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#define a_entry ah.entry
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#define a_textstart ah.text_start
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#define a_datastart ah.data_start
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#define a_bssstart ah.bss_start
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#define a_gprmask ah.gprmask
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#define a_fprmask ah.fprmask
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#define a_gpvalue ah.gpvalue
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#define N_TXTADDR(x) ((x).a_textstart)
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#define N_DATADDR(x) ((x).a_datastart)
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#define N_BSSADDR(x) ((x).a_bssstart)
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#define N_DRSIZE(x) 0
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#define N_TRSIZE(x) 0
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#define N_SYMSIZE(x) 0
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#define AOUTHSZ sizeof(struct aouthdr)
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#define SCNHSZ sizeof(struct scnhdr)
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#define SCNROUND 16
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#define N_TXTOFF(x) \
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((long) N_MAGIC(x) == ZMAGIC ? 0 : \
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(sizeof(struct exec) + (x).fh.f_nscns*SCNHSZ + SCNROUND - 1) & ~(SCNROUND - 1))
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#ifdef __KERNEL__
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/* Assume that start addresses below 4G belong to a TASO application.
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Unfortunately, there is no proper bit in the exec header to check.
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Worse, we have to notice the start address before swapping to use
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/sbin/loader, which of course is _not_ a TASO application. */
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#define SET_AOUT_PERSONALITY(BFPM, EX) \
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set_personality (((BFPM->sh_bang || EX.ah.entry < 0x100000000L \
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? ADDR_LIMIT_32BIT : 0) | PER_OSF4))
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#define STACK_TOP \
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(current->personality & ADDR_LIMIT_32BIT ? 0x80000000 : 0x00120000000UL)
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#endif
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#endif /* __A_OUT_GNU_H__ */
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