Add mkboot(8), a utility to make U-Boot images.

3 files changed, 205 insertions, 0 deletions

diff --git a/sys/arch/socppc/stand/mkboot/Makefile b/sys/arch/socppc/stand/mkboot/Makefile
new file mode 100644
index 00000000000..5ca938d7c7e
--- /dev/null
+++ b/sys/arch/socppc/stand/mkboot/Makefile
@@ -0,0 +1,14 @@
+#	$OpenBSD: Makefile,v 1.1 2008/05/15 21:32:20 kettenis Exp $
+
+MAN=	mkboot.8
+MANSUBDIR=socppc
+
+.if ${MACHINE} == "socppc"
+PROG=	mkboot
+DPADD=	${LIBZ}
+LDADD=	-lz
+.else
+NOPROG=
+.endif
+
+.include <bsd.prog.mk>
diff --git a/sys/arch/socppc/stand/mkboot/mkboot.8 b/sys/arch/socppc/stand/mkboot/mkboot.8
new file mode 100644
index 00000000000..8b4119e2f5d
--- /dev/null
+++ b/sys/arch/socppc/stand/mkboot/mkboot.8
@@ -0,0 +1,46 @@
+.\"     $OpenBSD: mkboot.8,v 1.1 2008/05/15 21:32:20 kettenis Exp $
+.\"
+.\" Copyright (c) 2008 Mark Kettenis <kettenis@openbsd.org>
+.\"
+.\" Permission to use, copy, modify, and distribute this software for any
+.\" purpose with or without fee is hereby granted, provided that the above
+.\" copyright notice and this permission notice appear in all copies.
+.\"
+.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+.\"
+.Dd $Mdocdate: May 15 2008 $
+.Dt MKBOOT 8 socppc
+.Os
+.Sh NAME
+.Nm mkboot
+.Nd create U-Boot files
+.Sh SYNOPSIS
+.Nm mkboot
+.Op Fl e Ar entry
+.Op Fl l Ar loadpoint
+.Ar infile outfile
+.Sh DESCRIPTION
+The
+.Nm
+utility creates images suitable for loading using the U-Boot bootloader.
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl e Ar entry
+Sets the entry point to
+.Em "entry" .
+.It Fl l Ar loadpoint
+Sets the load address to
+.Em "loadpoint".
+.El
+.Sh HISTORY
+A
+.Nm
+utility first appeared in
+.Ox 4.4 .
diff --git a/sys/arch/socppc/stand/mkboot/mkboot.c b/sys/arch/socppc/stand/mkboot/mkboot.c
new file mode 100644
index 00000000000..5de5e756ada
--- /dev/null
+++ b/sys/arch/socppc/stand/mkboot/mkboot.c
@@ -0,0 +1,145 @@
+/*	$OpenBSD: mkboot.c,v 1.1 2008/05/15 21:32:20 kettenis Exp $	*/
+
+/*
+ * Copyright (c) 2008 Mark Kettenis
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+#include <err.h>
+#include <fcntl.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+#include <zlib.h>
+
+#define IH_OS_OPENBSD		1 /* OpenBSD */
+
+#define IH_CPU_PPC		7 /* PowerPC */
+
+#define IH_TYPE_STANDALONE	1 /* Standalone */
+
+#define IH_COMP_NONE		0 /* No compression */
+
+#define IH_MAGIC		0x27051956	/* Image Magic Number */
+#define IH_NMLEN		32 		/* Image Name Length */
+
+struct image_header {
+	uint32_t	ih_magic;
+	uint32_t	ih_hcrc;
+	uint32_t	ih_time;
+	uint32_t	ih_size;
+	uint32_t	ih_load;
+	uint32_t	ih_ep;
+	uint32_t	ih_dcrc;
+	uint8_t		ih_os;
+	uint8_t		ih_arch;
+	uint8_t		ih_type;
+	uint8_t		ih_comp;
+	uint8_t		ih_name[IH_NMLEN];
+};
+
+extern char *__progname;
+
+void	usage(void);
+
+int
+main(int argc, char *argv[])
+{
+	struct image_header ih;
+	const char *iname, *oname;
+	int ifd, ofd;
+	u_long crc;
+	ssize_t nbytes;
+	char buf[BUFSIZ];
+	int c, ep, load;
+
+	ep = load = 0;
+	while ((c = getopt(argc, argv, "e:l:")) != -1) {
+		switch (c) {
+		case 'e':
+			sscanf(optarg, "0x%x", &ep);
+			break;
+		case 'l':
+			sscanf(optarg, "0x%x", &load);
+			break;
+		default:
+			usage();
+		}
+	}
+	if (argc - optind != 2)
+		usage();
+
+	iname = argv[optind++];
+	oname = argv[optind++];
+
+	/* Initialize U-Boot header. */
+	bzero(&ih, sizeof ih);
+	ih.ih_magic = IH_MAGIC;
+	ih.ih_time = time(NULL);
+	ih.ih_load = load;
+	ih.ih_ep = ep;
+	ih.ih_os = IH_OS_OPENBSD;
+	ih.ih_arch = IH_CPU_PPC;
+	ih.ih_type = IH_TYPE_STANDALONE;
+	ih.ih_comp = IH_COMP_NONE;
+	strlcpy(ih.ih_name, "boot", sizeof ih.ih_name);
+
+	ifd = open(iname, O_RDONLY);
+	if (ifd < 0)
+		err(1, "%s", iname);
+
+	ofd = open(oname, O_RDWR | O_TRUNC | O_CREAT, 0644);
+	if (ofd < 0)
+		err(1, "%s", oname);
+
+	/* Write initial header. */
+	if (write(ofd, &ih, sizeof ih) != sizeof ih)
+		err(1, "%s", oname);
+
+	/* Copy data, calculating the data CRC as we go. */
+	crc = crc32(0L, Z_NULL, 0);
+	while ((nbytes = read(ifd, buf, sizeof buf)) != 0) {
+		if (nbytes == -1)
+			err(1, "%s", iname);
+		if (write(ofd, buf, nbytes) != nbytes)
+			err(1, "%s", oname);
+		crc = crc32(crc, buf, nbytes);
+		ih.ih_size += nbytes;
+	}
+	ih.ih_dcrc = htonl(crc);
+
+	/* Calculate header CRC. */
+	crc = crc32(0, (void *)&ih, sizeof ih);
+	ih.ih_hcrc = htonl(crc);
+
+	/* Write finalized header. */
+	if (lseek(ofd, 0, SEEK_SET) != 0)
+		err(1, "%s", oname);
+	if (write(ofd, &ih, sizeof ih) != sizeof ih)
+		err(1, "%s", oname);
+
+	return(0);
+}
+
+void
+usage(void)
+{
+	(void)fprintf(stderr,
+	    "usage: %s infile outfile\n", __progname);
+	exit(1);
+}