Thank you Wolfgang, For the especific case of the env tool, One can build it to run on the host to produce a environment variables binary file for the target (This can be used while building some image to be written in a sd card, spi flash or the like). For this specific case I'm in doubt on how to compile it. I'm trying to compile it for beaglebone black.
I was able to compile it, but I'm not sure if I did it properly. Moreover I would like to know the role of HOSTCC in it and if it is correct to access it directly. I used the following commands: make am335x_evm_config CROSS_COMPILE=arm-poky-linux-gnueabi- HOSTCC="gcc " CC="arm-poky-linux-gnueabi-gcc -march=armv7-a -mfloat-abi=hard -mfpu=neon -mtune=cortex-a8 " make env CROSS_COMPILE=arm-poky-linux-gnueabi- HOSTCC="gcc " CC="arm-poky-linux-gnueabi-gcc -march=armv7-a -mfloat-abi=hard -mfpu=neon -mtune=cortex-a8 " Using this approach, I can compile code for the host that is dependent on the target architecture. All of this makes sense? Thank you. On Thu, Jan 22, 2015 at 4:10 AM, Wolfgang Denk <w...@denx.de> wrote: > Dear Raphael Philipe, > > In message > <caengnhddme5v75wtm+u3w68-zafbtbsrrkfntjfspcypkg1...@mail.gmail.com> you > wrote: >> >> I'm working on the improvement of the recipes of u-boot in the Poky >> reference system of Yocto project. > > Thanks a lot in advance! > >> My questions are: >> >> - what is the build system used in u-boot? > > It is based on Kbuild in combination with specific scripts (buildman) > especially for mass-building. It is tailored to be usable with a > large variety of tool chains. > >> - Does this build system change for building the tools? > > No. > >> - What do I need to change when compiling the tools for the host >> architecture and for the target? > > Change? Nothing. You just run a different command. > > > Best regards, > > Wolfgang Denk > > -- > DENX Software Engineering GmbH, Managing Director: Wolfgang Denk > HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany > Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: w...@denx.de > To make this work we'd need a patch, as nobody of us tests this. > - L. Poettering in https://bugs.freedesktop.org/show_bug.cgi?id=74589 _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
