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