On Sep 15, 2011, at 6:54 PM, Anirudh Sivaraman wrote: > On Thu, Sep 15, 2011 at 3:06 PM, Ali Saidi <sa...@umich.edu> wrote: >> You'll need to create a disk image as outlined in: >> >> http://gem5.org/Disk_images >> >> and put the android filesystem on it. You should make sure that android is >> in the name of the disk image so gem5 appends the correct kernel command >> line. > > So I tried what you said. > > For the disk: I compiled Android from source, dropped all the relevant > files from different Android file systems into one big ext2 file > system mounted at '/'. > As for the kernel: I followed the instructions here to compile the > kernel : http://www.linux-arm.org/LinuxKernel/LinuxAndroidPlatform as > you told me. > > I notice I need to rename the disk image to ael-arm.ext2 and the > kernel to vmlinux.arm for fs.py to load the kernel and disk image > correctly. > After doing so, and changing the M5_PATH to point to the appropriate > files, I am still unable to boot it in Full System. > > Here is what happens: > > 1. I first run ARM_FS using the kernel I built from > http://www.linux-arm.org/LinuxKernel/LinuxAndroidPlatform ( > specifically I use the uImage file that the build generates) . The > file system is generated by compiling Android from source and > aggregating files. It says vmlinux.arm could not be loaded. I am not > sure, but probably the kernel image is not expected to be a uImage ( > which is created from the Linux kernel build) but rather something > else ? Alternatively, is a separate bootloader file required ?
No, the kernel is expected to be a vmlinux file (with symbols, not a uImage). > > 2. So I tried copying the ARM_FS full system files from > http://www.m5sim.org/dist/current/arm/arm-system-2011-08.tar.bz2 and > tried running that ( after renaming the kernel file in 'binaries' to > vmlinux.arm and the disk image in 'disks' to ael-arm.ext2). It now > fails with : > > fatal: system.membus has two ports with same range: > system.bridge-portB > system.diskmem-port0 > @ cycle 0 > [recvStatusChange:build/ARM_FS/mem/bus.cc, line 551] > Memory Usage: 7391584 KBytes Are you using the latest gem5 development repository? > > 3. I also tried the Android file system I created with the kernel > taken from the gem5 site. That fails as well. > > Any help on this would be great. > > Anirudh > >> >> Ali >> >> >> >> You should be able to pass the kernel and disk image to gem5 and it should >> owkr. >> On Thu, 15 Sep 2011 10:29:11 -0400, Anirudh Sivaraman <sk.anir...@gmail.com> >> wrote: >>> >>> Hi >>> >>> I followed the steps given at : >>> http://www.linux-arm.org/LinuxKernel/LinuxAndroidPlatform to build the >>> Android platform and the kernel images for ARM. I have all the >>> relevant files for the Android platform on my system now. However, I >>> am not sure how to put all of these into one disk image for GEM5 >>> simulation. Would I need to separately add a bootloader file as well >>> to the disk image ? The instructions here : >>> http://gem5.org/Ubuntu_Disk_Image_for_ARM_Full_System seem specific to >>> running Ubuntu on ARM, and I am not sure if these extend to Android >>> directly. >>> >>> Anirudh >>> _______________________________________________ >>> gem5-users mailing list >>> gem5-users@gem5.org >>> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >> >> _______________________________________________ >> gem5-users mailing list >> gem5-users@gem5.org >> http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users >> > _______________________________________________ gem5-users mailing list gem5-users@gem5.org http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
