Dear Ferran, Thank you so much for all your insights. I managed to re-compile the benchmark after chroot to the image. I also solved the external libraries issues and managed to run it on both Gem5 original and the other version of Gem5. Thanks so much!
Regards, Elena -----Original Message----- From: gem5-users [mailto:gem5-users-boun...@gem5.org] On Behalf Of Ferran Olid Sent: 03 February 2017 14:26 To: gem5-users@gem5.org Subject: Re: [gem5-users] Error with GLIBC 2.7 while trying to run C program in FS Mode Hi Elena, I'm afraid I've never used this version of gem5, but if these calls to external libraries are calls to the m5 functions (such as m5_exit and so) you will need to copy some files from gem5/util/m5 to the chroot as well. Think that, when you are inside a chroot, the shell you are using can "see" nothing outside the directory you have chrooted to, so anything the benchmark needs in order for it to be compiled has to be somewhere inside the chroot directory. Cheers, Ferran O. On 03/02/17 14:54, Woo L.L. wrote: > Hi Ferran, > > I did as per your suggestions. > Initially, I was still facing with errors /bin/bash: /lib32/libc.so.6: > version 'GLIBC_2.11' not found as I am using the image that comes with GemFI > (Gem5 with Fault Injection). > > I redo the steps with the image downloaded from official gem5 web and I > managed to chroot to the image. So, I recompile the original benchmark and it > works fine. I also have a modified version of the benchmark source program > where it includes calling external library. But when I tried to compile it > with the following command: > > Gcc -I/home/llw1n14/RTS/runtime/gemfi/ > -L/home/llw1n14/RTS/runtime/gemfi/ qsort_small_fi.c -o qsort_small_fi > -lm5 > > It gives me errors of being unable to read the header file (m5op.h) Do > I need to mount the external library as well unto the image? > > Thanks. > Elena > > -----Original Message----- > From: gem5-users [mailto:gem5-users-boun...@gem5.org] On Behalf Of > Ferran Olid > Sent: 03 February 2017 12:58 > To: gem5-users@gem5.org > Subject: Re: [gem5-users] Error with GLIBC 2.7 while trying to run C > program in FS Mode > > Hi Elena, > > I assume that, in order to do full system simulation you have downloaded one > of the images from the gem5 official web, right? What you have to do then is > the following: > > sudo su > cd /directory/where/your/image/is/located/ > > mkdir tmp_mnt > > mount -o loop,offset=32256 x86root.img ./tmp_mnt # assuming your > image is called x86root.img > mkdir -p ./tmp_mnt/benchmarks > cp -r /your/benchmark/sources ./tmp_mnt/benchmarks > > # Now time to mount /proc, /sys and /dev mount -o bind /proc > ./tmp_mnt/proc mount -o bind /dev ./tmp_mnt/dev mount -o bind /sys > ./tmp_mnt/sys > > # Chroot to the image > chroot ./tmp_mnt > > > Once you've done this, you will be chrooted to your image. Just navigate to > your benchmark directory (/benchmarks in the case above) and compile as you > would normally do. Once everything is done, use `exit` to go back to your > system. Remember to unmount proc, dev and sys from your image once you've > exited the chroot (`umount ./tmp_mnt/proc` and so on). If compilation went > ok, then your benchmarks should work. > > > Cheers, > Ferran O > > > On 03/02/17 13:09, Woo L.L. wrote: >> Hi Ferran, >> >> I have never done chroot before, so this was my first attempt. What I did >> was: >> a) Install schroot and debootstrap >> b) Creating a chroot at my mounted image >> c) Edit the schroot.conf >> d) Created basic installation of Ubuntu 14.04 in the chroot >> >> But I encountered errors while trying to create a basic installation of >> Ubuntu - all on GLIBC >> - Failure trying to run: chroot >> /home/llw1n14RTS/gemfi/x86/disks/mountpoint mount -t proc proc /proc >> - mount: /lib32/libc.so.6: version 'GLIBC_2.7' not found >> (required by mount) >> - mount: /lib32/libc.so.6: version 'GLIBC_2.7' not found >> (required by /lib/i386-linux-gnu/libblkid.so.1) >> - mount: /lib32/libc.so.6: version 'GLIBC_2.7' not found >> (required by /lib/i386-linux-gnu/libselinux.so.1) >> - mount: /lib32/libc.so.6: version 'GLIBC_2.8' not found >> (required by /lib/i386-linux-gnu/libblkid.so.1) >> - mount: /lib32/libc.so.6: version 'GLIBC_2.8' not found >> (required by /lib/i386-linux-gnu/libmount.so.1) >> - mount: /lib32/libc.so.6: version 'GLIBC_2.7' not found >> (required by /lib/i386-linux-gnu/libmount.so.1) >> >> I can't create a basic installation of Ubuntu in my mounted image, >> and I can chroot to my mounted image. All due to the issue of libc.so.6 A >> check in the folder /lib32, /lib64 and /lib, I found that libc.so.6 is a >> link to libc-2.19.so. >> I don't understand what happen. If it is link to libc-2.19.so (which is the >> EGLIBC 2.19 I presume), then logically it shouldn’t have any error on GLIBC. >> >> Really needed help here. >> Thanks. >> >> Elena >> >> >> -----Original Message----- >> From: gem5-users [mailto:gem5-users-boun...@gem5.org] On Behalf Of >> Ferran Olid >> Sent: 03 February 2017 10:38 >> To: gem5-users@gem5.org >> Subject: Re: [gem5-users] Error with GLIBC 2.7 while trying to run C >> program in FS Mode >> >> Hi Elena, >> >> Maybe you could try to mount the image you are using to run the experiments >> in FS mode, chroot to it and compile these benchmarks there. >> You'll also have to mount /proc, /dev and /sys to your mounte image before >> chrooting. >> >> Hope this helps, >> Ferran O. >> >> On 03/02/17 11:30, Woo L.L. wrote: >>> Hi Pierre-Yves, >>> >>> I did tried compiling it with the -static flag for the first few benchmarks >>> that I have run, but I got a segmentation fault. So, I tried compiling it >>> without the -static flag, and it works. >>> >>> But for this benchmark (QSort and Dijkstra) from MiBench, I tried to >>> compile without the -static flag, and I got the error /lib/libc.so.6: >>> version 'GLIBC_2.7' not found. If I compile it with the -static flag, I got >>> segmentation error. >>> >>> So I am really stuck at this. Please help. >>> Thanks. >>> >>> Regards, >>> Elena >>> >>> -----Original Message----- >>> From: gem5-users [mailto:gem5-users-boun...@gem5.org] On Behalf Of >>> Pierre-Yves Péneau >>> Sent: 03 February 2017 10:14 >>> To: gem5-users@gem5.org >>> Subject: Re: [gem5-users] Error with GLIBC 2.7 while trying to run C >>> program in FS Mode >>> >>> Hi Elena, >>> >>> You should try to compile with the -static flag. >>> >>> On 02/03/2017 11:09 AM, Woo L.L. wrote: >>>> Hi there, >>>> >>>> I run a couple of benchmarks from MiBench Automotive package under FS Mode >>>> successfully. >>>> I wanted to test other benchmarks from the same MiBench, so I compiled >>>> those C programs as usual using GCC (I have GCC 4.8.4 in my Ubuntu). No >>>> errors in compiling and even running it from the terminal. >>>> >>>> However, when I try to run it with Gem5 un FS Mode, it gives me the >>>> problem /lib/libc.so.6: version 'GLIBC_2.7' not found. In my system, I had >>>> EGLIBC 2.19 installed (I checked using ldd -version). I tried to search >>>> for some solutions, where most users suggest to recompile again with the >>>> newer GLIBC (which I did), but it didn't solve the problem. I am able to >>>> run it from the terminal, but not from Gem5. >>>> >>>> Has anyone ever encounter this issue and is there a solution to it? >>>> Appreciate all your help. >>>> Thanks. >>>> >>>> Thanks and Regards, >>>> >>>> Elena Woo Lai Leng >>>> Faculty of Electronic and Computer Science (ECS) University of >>>> Southampton >>>> >>>> Email: l.l....@soton.ac.uk<mailto:l.l....@soton.ac.uk> >>>> Website: www.ecs.soton.ac.uk<http://www.ecs.soton.ac.uk> >>>> >>>> >>>> >>>> >>>> _______________________________________________ >>>> 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 > > _______________________________________________ > 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 _______________________________________________ gem5-users mailing list gem5-users@gem5.org http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
