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X-BeenThere: buildroot@buildroot.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Discussion and development of buildroot List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: buildroot-bounces@buildroot.org Sender: "buildroot" > -----Original Message----- > From: Arnout Vandecappelle > Sent: 06 February 2022 11:50 > To: Dan Jackson ; buildroot@buildroot.org > Subject: Re: [Buildroot] Getting Buildroot-created binaries to work with the > Intel (TI) Puma 5 ARM-based CPU? > [...snip...] > > > > Links to the two toolchains I mentioned: > > https://github.com/bmaia/cross- > utils/tree/master/armeb/puma5_toolchain (uses Buildroot 2009.02) > > This one uses > > BR2_armeb=y > BR2_arm1176jz_s=y > BR2_ARM_EABI=y > > It's not clear if there's an FPU, so use soft float. >From /proc/cpuinfo on the target device I can see: Features : swp half thumb fastmult edsp java It's my understanding this line would include "vfp" if there was an FPU, so I don't believe there is one. > > That should be enough to build a toolchain and userspace with current > Buildroot. I tried creating a fresh Buildroot using the current stable version 2021.11 and only the above options. I then tried transferring the files from the generated rootfs.tar to a directory /var/tmp/test on the device (the reason for this is that / is a read-only file system, so /bin, /lib, /usr are not writable, but /var is a read-write file system). I then attempted to execute it in the following manner (accounting for the fact that Buildroot builds dynamically linked executables by default): /var/tmp/test/lib/ld-uClibc-1.0.39.so --library-path /var/tmp/test/lib /var/tmp/test/bin/busybox (this method was suggested in the section LD_LIBRARY_PATH on this page: https://tldp.org/HOWTO/Program-Library-HOWTO/shared-libraries.html) However this did not work and in fact produced a "Segmentation fault" error. Have I made some kind of obvious error or mistake? Thanks, Dan Jackson. _______________________________________________ buildroot mailing list buildroot@buildroot.org https://lists.buildroot.org/mailman/listinfo/buildroot