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swupdate provides a reliable way to update the software on an embedded system. Note that swupdates has a reworked Kbuild/Kconfig system. It has now support for the 'option' and 'env' symbols as well for the 'savedefconfig' target. This makes dependency handling much easier. We're now able to pass which dependencies are available through the environment, as suggested by Arnout Vandecappelle [1]. In previous version of this patch we had a configuration setting where all package dependencies except Lua were selected by default. This has changed with v7 as we are now able to pass dependencies to the swupdate build system through the environment. For useful operation swupdate requires a parser which depends by default on libconfig, but can be replaced by a json-c or Lua parser. To provide a reasonable firmware update system we enable the embedded webserver based on mongoose (also see notes about mongoose below), a parser as stated above and a handler for raw NAND or NOR flash. The user can modify this configuration by selecting the appropriate dependencies before running `make swupdate-menuconfig`. The help text contains information about which packages may be of interest for the user. The embedded web server requires a website for proper operation. We install the included website by default, however the user may choose to install a custom website on the post-build scripts. Note, swupdate includes some old versions of mongoose and lsqlite3: - mongoose is version 3.8 from year 2013 - lsqlite3 is version 0.8 from year 2011 Currently, swupdate does not provide a way to replace these with external packages. This patch is based on a WIP version submitted by Romain Naour, commented by Arnout Vandecappelle [2]. [1] http://lists.busybox.net/pipermail/buildroot/2015-March/122981.html [2] https://patchwork.ozlabs.org/patch/401270/ Signed-off-by: Jörg Krause <joerg.krause@embedded.rocks> Cc: Romain Naour <romain.naour@openwide.fr> Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com> Cc: Arnout Vandecappelle <arnout@mind.be> Cc: Yann E. MORIN <yann.morin.1998@free.fr> Tested-by: Mike Williams <mike@mikebwilliams.com> Reviewed-by: Romain Naour <romain.naour@openwide.fr> Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on Freenode IRC.