Hi Elena,
Glad to hear that! :) You're welcome!
Cheers,
Ferran O.
On 08/02/17 12:18, Woo L.L. wrote:
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>
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