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2019-02-01tools: dumpimage: Clarify helpMartyn Welch
Help message isn't clear over the use of the "-T" option (it's to declare the type of image that the tool is operating on), which also is optional as it defaults to the default image type. It's also missing a description of the "-o" option, so add it. Signed-off-by: Martyn Welch <martyn.welch@collabora.com>
2019-02-01tools: dumpimage: Add help option and make error paths consistentMartyn Welch
The utility dumpimage has error paths that display the usage and others that exit without displaying usage. Add an explicit help option to dumpimage to display the usage and remove it's use in error paths to make the error messages more obvious and errors paths more consistent. Signed-off-by: Martyn Welch <martyn.welch@collabora.com>
2019-02-01tools: dumpimage: Simplify internal logicMartyn Welch
There are 3 supported modes of operation: 1) Show version 2) List image contents 3) Extract image component Option (1) terminates early, so only options (2) and (3) remain. Remove redundant check for these modes. Signed-off-by: Martyn Welch <martyn.welch@collabora.com>
2019-02-01tools: dumpimage: Simplify argumentsMartyn Welch
The dump image utility has very confusing syntax. If called to list image contents ("-l") it takes the image name as a positional argument. If the utility is called to extract something from the image, the image must be provided via the optional argument "-i" as well as the positional argument but the value passed in the positional argument will be completely ignored. Simplify dumpimage by always providing the image as the first positional argument. Assume we want to dump something from the image if we do not provide the "-l" option for now. Signed-off-by: Martyn Welch <martyn.welch@collabora.com>
2019-02-01tools: dumpimage: Provide more feedback on errorMartyn Welch
The dumpimage utility errors out in a number of places without providing sufficient feedback to allow the user to easily determine what they have done wrong. Add addtional error messages to make the cause of the failure more obvious. Signed-off-by: Martyn Welch <martyn.welch@collabora.com>
2018-05-07SPDX: Convert all of our single license tags to Linux Kernel styleTom Rini
When U-Boot started using SPDX tags we were among the early adopters and there weren't a lot of other examples to borrow from. So we picked the area of the file that usually had a full license text and replaced it with an appropriate SPDX-License-Identifier: entry. Since then, the Linux Kernel has adopted SPDX tags and they place it as the very first line in a file (except where shebangs are used, then it's second line) and with slightly different comment styles than us. In part due to community overlap, in part due to better tag visibility and in part for other minor reasons, switch over to that style. This commit changes all instances where we have a single declared license in the tag as both the before and after are identical in tag contents. There's also a few places where I found we did not have a tag and have introduced one. Signed-off-by: Tom Rini <trini@konsulko.com>
2015-01-29dumpimage: replace the term "datafile" by "subimage"Guilherme Maciel Ferreira
Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
2015-01-29dumpimage: add 'T' option to explicitly set the image typeGuilherme Maciel Ferreira
Some image types, like "KeyStone GP", do not have magic numbers to distinguish them from other image types. Thus, the automatic image type discovery does not work correctly. This patch also fix some integer type mismatches. Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
2015-01-29imagetool: replace image registration function by linker_lists featureGuilherme Maciel Ferreira
The registration was introduced in commit f86ed6a8d52c99bb2d17d3cac1647edca0c4399c This commit also removes all registration functions, and the member "next" from image_type_params struct Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
2015-01-29imagetool: move common code to imagetool moduleGuilherme Maciel Ferreira
The get_type() and verify_print_header() functions have the same code on both dumpimage.c and mkimage.c modules. Signed-off-by: Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
2013-12-13Add dumpimage, a tool to extract data from U-Boot imagesGuilherme Maciel Ferreira
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>