Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	usr.sbin/mopd/mopa.out/mopa.out.c	Lines:	0	71	0.0 %
Date:	2017-11-13	Branches:	0	35	0.0 %


/*	$OpenBSD: mopa.out.c,v 1.17 2017/10/29 08:45:53 mpi Exp $ */

/*
 * mopa.out - Convert a Unix format kernel into something that
 * can be transferred via MOP.
 *
 * This code was written while referring to the NetBSD/vax boot
 * loader. Therefore anything that can be booted by the Vax
 * should be convertable with this program.
 *
 * If necessary, the a.out header is stripped, and the program
 * segments are padded out. The BSS segment is zero filled.
 * A header is prepended that looks like an IHD header. In
 * particular the Unix machine ID is placed where mopd expects
 * the image type to be (offset is IHD_W_ALIAS). If the machine
 * ID could be mistaken for a DEC image type, then the conversion
 * is aborted. The original a.out header is copied into the front
 * of the header so that once we have detected the Unix machine
 * ID we can haul the load address and the xfer address out.
 */

/*
 * Copyright (c) 1996 Lloyd Parkes.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *	This product includes software developed by Lloyd Parkes.
 * 4. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#include "os.h"
#include "common/common.h"
#include "common/mopdef.h"
#include "common/file.h"
#if defined(__OpenBSD__)
#include <sys/exec.h>
#endif
#if defined(__FreeBSD__)
#include <sys/imgact_aout.h>
#endif
#if defined(__bsdi__)
#include <a.out.h>
#define NOAOUT
#endif
#if !defined(MID_VAX)
#define MID_VAX 140
#endif

#ifndef NOELF
#if defined(__NetBSD__) || defined(__OpenBSD__)
#include <elf.h>
#else
#define NOELF
#endif
#endif

#ifndef NOELF
#if !defined(_LP64)
#define NOELF64
#endif
#endif

u_char header[512];		/* The MOP header we generate is 1 block. */
#if !defined(NOAOUT)
struct exec ex, ex_swap;
#endif

int
main (int argc, char **argv)
{
	FILE   *out;		/* A FILE because that is easier. */
	int	i, j;
	struct dllist dl;
	short image_type;

#ifdef NOAOUT
	fprintf(stderr, "%s: has no function in OS/BSD\n", argv[0]);
	return(1);
#endif

	if (argc != 3) {
		fprintf (stderr, "usage: %s infile outfile\n", argv[0]);
		return (1);
	}

	dl.ldfd = open (argv[1], O_RDONLY);
	if (dl.ldfd == -1)
		err(2, "open `%s'", argv[1]);

	if (GetFileInfo(&dl, 0) == -1)
		errx(3, "`%s' is an unknown file type", argv[1]);

	switch (dl.image_type) {
	case IMAGE_TYPE_MOP:
		errx(3, "`%s' is already a MOP image", argv[1]);
		break;

#ifndef NOELF
	case IMAGE_TYPE_ELF32:
		if (dl.e_machine != EM_VAX)
			printf("WARNING: `%s' is not a VAX image "
			    "(machine=%d)\n", argv[1], dl.e_machine);
		for (i = 0, j = 0; j < dl.e_nsec; j++)
			i += dl.e_sections[j].s_fsize + dl.e_sections[j].s_pad;
		image_type = IHD_C_NATIVE;
		break;
#endif

#if !defined(NOELF) && !defined(NOELF64)
	case IMAGE_TYPE_ELF64:
		if (dl.e_machine != EM_ALPHA && dl.e_machine != EM_ALPHA_EXP)
			printf("WARNING: `%s' is not an ALPHA image "
			    "(machine=%d)\n", argv[1], dl.e_machine);
		for (i = 0, j = 0; j < dl.e_nsec; j++)
			i += dl.e_sections[j].s_fsize + dl.e_sections[j].s_pad;
		image_type = IHD_C_ALPHA;
		break;
#endif

#ifndef NOAOUT
	case IMAGE_TYPE_AOUT:
		if (dl.a_mid != MID_VAX)
			printf("WARNING: `%s' is not a VAX image (mid=%d)\n",
			    argv[1], dl.a_mid);
		i = dl.a_text + dl.a_text_fill + dl.a_data + dl.a_data_fill +
		    dl.a_bss  + dl.a_bss_fill;
		image_type = IHD_C_NATIVE;
		break;
#endif

	default:
		errx(3, "Image type `%s' not supported",
		    FileTypeName(dl.image_type));
	}

	dl.nloadaddr = dl.loadaddr;
	dl.lseek     = lseek(dl.ldfd,0L,SEEK_CUR);
	dl.a_lseek   = 0;
	dl.count     = 0;
	dl.dl_bsz    = 512;

	switch (image_type) {
	default:
	case IHD_C_NATIVE:
		/* Offset to ISD section. */
		mopFilePutLX(header, IHD_W_SIZE, 0xd4, 2);
		/* Offset to 1st section.*/
		mopFilePutLX(header, IHD_W_ACTIVOFF, 0x30, 2);
		/* It's a VAX image.*/
		mopFilePutLX(header, IHD_W_ALIAS, IHD_C_NATIVE, 2);
		/* Only one header block. */
		mopFilePutLX(header, IHD_B_HDRBLKCNT, 1, 1);

		/* Xfer Addr */
		mopFilePutLX(header, 0x30 + IHA_L_TFRADR1, dl.xferaddr, 4);

		/* load Addr */
		mopFilePutLX(header, 0xd4 + ISD_V_VPN, dl.loadaddr / 512, 2);
		/* Imagesize in blks.*/
		i = (i + 1) / 512;
		mopFilePutLX(header, 0xd4 + ISD_W_PAGCNT, i, 2);
		break;
	case IHD_C_ALPHA:
		/* Offset to ISD section. */
		mopFilePutLX(header, EIHD_L_ISDOFF, 0xd4, 4);
		/* It's an alpha image.*/
		mopFilePutLX(header, IHD_W_ALIAS, IHD_C_ALPHA, 2);
		/* Only one header block. */
		mopFilePutLX(header, EIHD_L_HDRBLKCNT, 1, 4);

		/* Imagesize in bytes.*/
		mopFilePutLX(header, 0xd4 + EISD_L_SECSIZE, i, 4);
		break;
	}

	out = fopen (argv[2], "w");
	if (!out)
		err(2, "writing `%s'", argv[2]);

	/* Now we do the actual work. Write MOP-image header */

	fwrite (header, sizeof (header), 1, out);

	switch (dl.image_type) {
	case IMAGE_TYPE_MOP:
		abort();

	case IMAGE_TYPE_ELF32:
#ifdef NOELF
		abort();
#else
		fprintf(stderr, "copying ");
		for (j = 0; j < dl.e_nsec; j++)
			fprintf(stderr, "%s%u+%u", j == 0 ? "" : "+",
			    dl.e_sections[j].s_fsize,
			    dl.e_sections[j].s_pad);
		fprintf(stderr, "->0x%x\n", dl.xferaddr);
#endif
		break;

	case IMAGE_TYPE_AOUT:
#ifdef NOAOUT
		abort();
#else
		fprintf(stderr, "copying %u+%u+%u->0x%x\n", dl.a_text,
		    dl.a_data, dl.a_bss, dl.xferaddr);
#endif
		break;
	default:
		break;
	}

	while ((i = mopFileRead(&dl,header)) > 0) {
		(void)fwrite(header, i, 1, out);
	}

	fclose (out);
	exit(0);
}


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: mopa.out.c,v 1.17 2017/10/29 08:45:53 mpi Exp $ */
2
3			/*
4			* mopa.out - Convert a Unix format kernel into something that
5			* can be transferred via MOP.
6			*
7			* This code was written while referring to the NetBSD/vax boot
8			* loader. Therefore anything that can be booted by the Vax
9			* should be convertable with this program.
10			*
11			* If necessary, the a.out header is stripped, and the program
12			* segments are padded out. The BSS segment is zero filled.
13			* A header is prepended that looks like an IHD header. In
14			* particular the Unix machine ID is placed where mopd expects
15			* the image type to be (offset is IHD_W_ALIAS). If the machine
16			* ID could be mistaken for a DEC image type, then the conversion
17			* is aborted. The original a.out header is copied into the front
18			* of the header so that once we have detected the Unix machine
19			* ID we can haul the load address and the xfer address out.
20			*/
21
22			/*
23			* Copyright (c) 1996 Lloyd Parkes. All rights reserved.
24			*
25			* Redistribution and use in source and binary forms, with or without
26			* modification, are permitted provided that the following conditions
27			* are met:
28			* 1. Redistributions of source code must retain the above copyright
29			* notice, this list of conditions and the following disclaimer.
30			* 2. Redistributions in binary form must reproduce the above copyright
31			* notice, this list of conditions and the following disclaimer in the
32			* documentation and/or other materials provided with the distribution.
33			* 3. All advertising materials mentioning features or use of this software
34			* must display the following acknowledgement:
35			* This product includes software developed by Lloyd Parkes.
36			* 4. The name of the author may not be used to endorse or promote products
37			* derived from this software without specific prior written permission.
38			*
39			* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
40			* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
41			* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
42			* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
43			* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
44			* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
45			* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
46			* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
47			* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
48			* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
49			*/
50
51			#include "os.h"
52			#include "common/common.h"
53			#include "common/mopdef.h"
54			#include "common/file.h"
55			#if defined(__OpenBSD__)
56			#include <sys/exec.h>
57			#endif
58			#if defined(__FreeBSD__)
59			#include <sys/imgact_aout.h>
60			#endif
61			#if defined(__bsdi__)
62			#include <a.out.h>
63			#define NOAOUT
64			#endif
65			#if !defined(MID_VAX)
66			#define MID_VAX 140
67			#endif
68
69			#ifndef NOELF
70			#if defined(__NetBSD__) \|\| defined(__OpenBSD__)
71			#include <elf.h>
72			#else
73			#define NOELF
74			#endif
75			#endif
76
77			#ifndef NOELF
78			#if !defined(_LP64)
79			#define NOELF64
80			#endif
81			#endif
82
83			u_char header[512]; /* The MOP header we generate is 1 block. */
84			#if !defined(NOAOUT)
85			struct exec ex, ex_swap;
86			#endif
87
88			int
89			main (int argc, char **argv)
90			{
91			FILE out; / A FILE because that is easier. */
92			int i, j;
93			struct dllist dl;
94			short image_type;
95
96			#ifdef NOAOUT
97			fprintf(stderr, "%s: has no function in OS/BSD\n", argv[0]);
98			return(1);
99			#endif
100
101			if (argc != 3) {
102			fprintf (stderr, "usage: %s infile outfile\n", argv[0]);
103			return (1);
104			}
105
106			dl.ldfd = open (argv[1], O_RDONLY);
107			if (dl.ldfd == -1)
108			err(2, "open `%s'", argv[1]);
109
110			if (GetFileInfo(&dl, 0) == -1)
111			errx(3, "`%s' is an unknown file type", argv[1]);
112
113			switch (dl.image_type) {
114			case IMAGE_TYPE_MOP:
115			errx(3, "`%s' is already a MOP image", argv[1]);
116			break;
117
118			#ifndef NOELF
119			case IMAGE_TYPE_ELF32:
120			if (dl.e_machine != EM_VAX)
121			printf("WARNING: `%s' is not a VAX image "
122			"(machine=%d)\n", argv[1], dl.e_machine);
123			for (i = 0, j = 0; j < dl.e_nsec; j++)
124			i += dl.e_sections[j].s_fsize + dl.e_sections[j].s_pad;
125			image_type = IHD_C_NATIVE;
126			break;
127			#endif
128
129			#if !defined(NOELF) && !defined(NOELF64)
130			case IMAGE_TYPE_ELF64:
131			if (dl.e_machine != EM_ALPHA && dl.e_machine != EM_ALPHA_EXP)
132			printf("WARNING: `%s' is not an ALPHA image "
133			"(machine=%d)\n", argv[1], dl.e_machine);
134			for (i = 0, j = 0; j < dl.e_nsec; j++)
135			i += dl.e_sections[j].s_fsize + dl.e_sections[j].s_pad;
136			image_type = IHD_C_ALPHA;
137			break;
138			#endif
139
140			#ifndef NOAOUT
141			case IMAGE_TYPE_AOUT:
142			if (dl.a_mid != MID_VAX)
143			printf("WARNING: `%s' is not a VAX image (mid=%d)\n",
144			argv[1], dl.a_mid);
145			i = dl.a_text + dl.a_text_fill + dl.a_data + dl.a_data_fill +
146			dl.a_bss + dl.a_bss_fill;
147			image_type = IHD_C_NATIVE;
148			break;
149			#endif
150
151			default:
152			errx(3, "Image type `%s' not supported",
153			FileTypeName(dl.image_type));
154			}
155
156			dl.nloadaddr = dl.loadaddr;
157			dl.lseek = lseek(dl.ldfd,0L,SEEK_CUR);
158			dl.a_lseek = 0;
159			dl.count = 0;
160			dl.dl_bsz = 512;
161
162			switch (image_type) {
163			default:
164			case IHD_C_NATIVE:
165			/* Offset to ISD section. */
166			mopFilePutLX(header, IHD_W_SIZE, 0xd4, 2);
167			/* Offset to 1st section.*/
168			mopFilePutLX(header, IHD_W_ACTIVOFF, 0x30, 2);
169			/* It's a VAX image.*/
170			mopFilePutLX(header, IHD_W_ALIAS, IHD_C_NATIVE, 2);
171			/* Only one header block. */
172			mopFilePutLX(header, IHD_B_HDRBLKCNT, 1, 1);
173
174			/* Xfer Addr */
175			mopFilePutLX(header, 0x30 + IHA_L_TFRADR1, dl.xferaddr, 4);
176
177			/* load Addr */
178			mopFilePutLX(header, 0xd4 + ISD_V_VPN, dl.loadaddr / 512, 2);
179			/* Imagesize in blks.*/
180			i = (i + 1) / 512;
181			mopFilePutLX(header, 0xd4 + ISD_W_PAGCNT, i, 2);
182			break;
183			case IHD_C_ALPHA:
184			/* Offset to ISD section. */
185			mopFilePutLX(header, EIHD_L_ISDOFF, 0xd4, 4);
186			/* It's an alpha image.*/
187			mopFilePutLX(header, IHD_W_ALIAS, IHD_C_ALPHA, 2);
188			/* Only one header block. */
189			mopFilePutLX(header, EIHD_L_HDRBLKCNT, 1, 4);
190
191			/* Imagesize in bytes.*/
192			mopFilePutLX(header, 0xd4 + EISD_L_SECSIZE, i, 4);
193			break;
194			}
195
196			out = fopen (argv[2], "w");
197			if (!out)
198			err(2, "writing `%s'", argv[2]);
199
200			/* Now we do the actual work. Write MOP-image header */
201
202			fwrite (header, sizeof (header), 1, out);
203
204			switch (dl.image_type) {
205			case IMAGE_TYPE_MOP:
206			abort();
207
208			case IMAGE_TYPE_ELF32:
209			#ifdef NOELF
210			abort();
211			#else
212			fprintf(stderr, "copying ");
213			for (j = 0; j < dl.e_nsec; j++)
214			fprintf(stderr, "%s%u+%u", j == 0 ? "" : "+",
215			dl.e_sections[j].s_fsize,
216			dl.e_sections[j].s_pad);
217			fprintf(stderr, "->0x%x\n", dl.xferaddr);
218			#endif
219			break;
220
221			case IMAGE_TYPE_AOUT:
222			#ifdef NOAOUT
223			abort();
224			#else
225			fprintf(stderr, "copying %u+%u+%u->0x%x\n", dl.a_text,
226			dl.a_data, dl.a_bss, dl.xferaddr);
227			#endif
228			break;
229			default:
230			break;
231			}
232
233			while ((i = mopFileRead(&dl,header)) > 0) {
234			(void)fwrite(header, i, 1, out);
235			}
236
237			fclose (out);
238			exit(0);
239			}