tools/dumpimage.h

/*
 * Based on mkimage.c.
 *
 * Written by Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#ifndef _DUMPIMAGE_H_
#define _DUMPIMAGE_H_

#include "os_support.h"
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <time.h>
#include <unistd.h>
#include <u-boot/sha1.h>
#include "fdt_host.h"
#include "imagetool.h"

#undef DUMPIMAGE_DEBUG

#ifdef DUMPIMAGE_DEBUG
#define debug(fmt, args...)	printf(fmt, ##args)
#else
#define debug(fmt, args...)
#endif /* DUMPIMAGE_DEBUG */

#endif /* _DUMPIMAGE_H_ */
Add dumpimage, a tool to extract data from U-Boot images Given a multi-file image created through the mkimage's -d option: $ mkimage -A x86 -O linux -T multi -n x86 -d vmlinuz:initrd.img:System.map \ multi.img Image Name: x86 Created: Thu Jul 25 10:29:13 2013 Image Type: Intel x86 Linux Multi-File Image (gzip compressed) Data Size: 13722956 Bytes = 13401.32 kB = 13.09 MB Load Address: 00000000 Entry Point: 00000000 Contents: Image 0: 4040128 Bytes = 3945.44 kB = 3.85 MB Image 1: 7991719 Bytes = 7804.41 kB = 7.62 MB Image 2: 1691092 Bytes = 1651.46 kB = 1.61 MB It is possible to perform the innverse operation -- extracting any file from the image -- by using the dumpimage's -i option: $ dumpimage -i multi.img -p 2 System.map Although it's feasible to retrieve "data files" from image through scripting, the requirement to embed tools such 'dd', 'awk' and 'sed' for this sole purpose is cumbersome and unreliable -- once you must keep track of file sizes inside the image. Furthermore, extracting data files using "dumpimage" tool is faster than through scripting. Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com> Signed-off-by: Simon Glass <sjg@chromium.org> 2013-12-01 12:43:11 -07:00			`/*`
			`* Based on mkimage.c.`
			`*`
			`* Written by Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>`
			`*`
			`* SPDX-License-Identifier: GPL-2.0+`
			`*/`

			`#ifndef _DUMPIMAGE_H_`
			`#define _DUMPIMAGE_H_`

			`#include "os_support.h"`
			`#include <errno.h>`
			`#include <fcntl.h>`
			`#include <stdio.h>`
			`#include <stdlib.h>`
			`#include <string.h>`
			`#include <sys/stat.h>`
			`#include <time.h>`
			`#include <unistd.h>`
includes: move openssl headers to include/u-boot commit 18b06652cd "tools: include u-boot version of sha256.h" unconditionally forced the sha256.h from u-boot to be used for tools instead of the host version. This is fragile though as it will also include the host version. Therefore move it to include/u-boot to join u-boot/md5.h etc which were renamed for the same reason. cc: Simon Glass <sjg@chromium.org> Signed-off-by: Jeroen Hofstee <jeroen@myspectrum.nl> 2014-06-12 22:27:12 +02:00			`#include <u-boot/sha1.h>`
Add dumpimage, a tool to extract data from U-Boot images Given a multi-file image created through the mkimage's -d option: $ mkimage -A x86 -O linux -T multi -n x86 -d vmlinuz:initrd.img:System.map \ multi.img Image Name: x86 Created: Thu Jul 25 10:29:13 2013 Image Type: Intel x86 Linux Multi-File Image (gzip compressed) Data Size: 13722956 Bytes = 13401.32 kB = 13.09 MB Load Address: 00000000 Entry Point: 00000000 Contents: Image 0: 4040128 Bytes = 3945.44 kB = 3.85 MB Image 1: 7991719 Bytes = 7804.41 kB = 7.62 MB Image 2: 1691092 Bytes = 1651.46 kB = 1.61 MB It is possible to perform the innverse operation -- extracting any file from the image -- by using the dumpimage's -i option: $ dumpimage -i multi.img -p 2 System.map Although it's feasible to retrieve "data files" from image through scripting, the requirement to embed tools such 'dd', 'awk' and 'sed' for this sole purpose is cumbersome and unreliable -- once you must keep track of file sizes inside the image. Furthermore, extracting data files using "dumpimage" tool is faster than through scripting. Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com> Signed-off-by: Simon Glass <sjg@chromium.org> 2013-12-01 12:43:11 -07:00			`#include "fdt_host.h"`
			`#include "imagetool.h"`

			`#undef DUMPIMAGE_DEBUG`

			`#ifdef DUMPIMAGE_DEBUG`
			`#define debug(fmt, args...) printf(fmt, ##args)`
			`#else`
			`#define debug(fmt, args...)`
			`#endif /* DUMPIMAGE_DEBUG */`

			`#endif /* _DUMPIMAGE_H_ */`