110 lines
3.6 KiB
C
110 lines
3.6 KiB
C
/*
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* Mach Operating System
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* Copyright (c) 1992,1993,1994,1995 Carnegie Mellon University
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* All Rights Reserved.
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*
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* Permission to use, copy, modify and distribute this software and its
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* documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
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* ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie Mellon
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* the rights to redistribute these changes.
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*/
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/*
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* HISTORY
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* Revision 1.1 1994/06/30 16:29:52 bostic
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* coff.h
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*
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* Revision 2.3 93/01/19 08:59:12 danner
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* Fix TXTOFF to cope with assembler/linker incoherence viz
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* rounding in OMAGIC files.
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* [93/01/15 af]
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*
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* Revision 2.2 93/01/14 17:12:13 danner
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* Adapted for Alpha.
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* [92/05/31 af]
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*
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*/
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/*
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* File: coff.h
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* Author: Alessandro Forin, Carnegie Mellon University
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* Date: 10/89
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*
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* Structure definitions for COFF headers
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*/
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struct filehdr {
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unsigned short f_magic; /* magic number */
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unsigned short f_nscns; /* number of sections */
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int f_timdat; /* time & date stamp */
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vm_offset_t f_symptr; /* file pointer to symtab */
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int f_nsyms; /* number of symtab entries */
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unsigned short f_opthdr; /* sizeof(optional hdr) */
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unsigned short f_flags; /* flags */
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};
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#define F_EXEC 0000002
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#define ALPHAMAGIC 0603
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struct scnhdr {
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char s_name[8]; /* section name */
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vm_offset_t s_paddr; /* physical address */
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vm_offset_t s_vaddr; /* virtual address */
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vm_offset_t s_size; /* section size */
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vm_offset_t s_scnptr; /* file ptr to raw data for section */
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vm_offset_t s_relptr; /* file ptr to relocation */
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vm_offset_t s_lnnoptr; /* file ptr to line numbers */
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unsigned short s_nreloc; /* number of relocation entries */
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unsigned short s_nlnno; /* number of line number entries */
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int s_flags; /* flags */
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};
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struct aouthdr {
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short magic; /* see magic.h */
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short vstamp; /* version stamp */
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int pad; /* help for cross compilers */
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vm_offset_t tsize; /* text size in bytes, padded to FW */
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vm_offset_t dsize; /* initialized data size */
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vm_offset_t bsize; /* uninitialized data size */
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vm_offset_t entry; /* entry point, value of "start" */
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vm_offset_t text_start; /* base of text used for this file */
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vm_offset_t data_start; /* base of data used for this file */
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vm_offset_t bss_start; /* base of bss used for this file */
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int gprmask; /* general purpose register mask*/
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int fprmask; /* FPA register mask */
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vm_offset_t gp_value; /* the gp value used for this object*/
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};
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struct exechdr {
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struct filehdr f;
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struct aouthdr a;
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};
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/* Linker and assembler screwed: .o are not aligned, images are */
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#define SCNROUND ((long)16)
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#define N_COFFBADMAG(a) \
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((a).magic != OMAGIC && (a).magic != NMAGIC && (a).magic != ZMAGIC)
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#define N_COFFTXTOFF(f, a) \
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(((a).magic == ZMAGIC) ? 0 : \
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(((f).f_flags & F_EXEC) ? \
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(((sizeof(struct filehdr) + sizeof(struct aouthdr) + \
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(f).f_nscns * sizeof(struct scnhdr)) + SCNROUND-1) & ~(SCNROUND-1)) \
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: (sizeof(struct filehdr) + sizeof(struct aouthdr) + \
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(f).f_nscns * sizeof(struct scnhdr))))
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