Hi,
I thought I couldn't use dynamic link in Syscall Emulation mode.
Could you provide me some documentation about how to use dynamic link in
SE with X86?
Thank you very much.
Regards,
Alberto.
El 2017-02-21 16:17, Jason Lowe-Power escribió:
Hi Alberto,
m5threads is not a perfect implementation of pthreads. Since m5threads
doesn't use the futex system call, there are a number of cases where
it won't behave the same way as pthreads. I've specifically run into a
problem using pthread barrier where I had to re-write my code to use
sense barriers because of a problem in m5threads.
Unfortunately, I don't have any simple suggestions to fix this. You
could dig into the m5threads code to see if you could fix the problem
there.
Another option is to use x86 and native pthreads. gem5 has support for
using dynamically linked binaries on x86. This might solve your
problem.
Cheers,
Jason
On Mon, Feb 20, 2017 at 6:34 PM 681687 <[email protected]> wrote:
Hi,
I am trying to simulate a benchmark developed using OpenCV 3.1 in
Syscall emulation mode.
OpenCV uses libpthread due to the use of locks, so I have to use
"m5threads" istead "libpthread" because Syscall emulatio mode can't
emulate the libpthread calls.
I can't use Full System mode because I am using gem5 with Aladdin,
and
Aladdin doesn't support Full System mode.
Using "m5threads" instead of "libpthread" produces a deadlock when
I try
to read an image with the OpenCV function "imread(path-to-the
image)".
Compiling in DEBUG mode I obtain the next trace before the
deadlock:
pthread_mutex_lock: start
pthread_mutex_lock: 11462
pthread_mutex_lock: start
pthread_mutex_lock: 11462
The process is calling 2 consecutive times to the mutex_lock
function.
I'm thinking that the driver should be able to access the lock, but
it
is not capable or is calling another function that is not the
"m5threads" "unlock" function, but I really do not know what's
going on
and how can I fix it.
Thank you very much.
Best regards,
Alberto Alvarez.
_______________________________________________
gem5-users mailing list
[email protected]
http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users [1]
Links:
------
[1] http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
_______________________________________________
gem5-users mailing list
[email protected]
http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
_______________________________________________
gem5-users mailing list
[email protected]
http://m5sim.org/cgi-bin/mailman/listinfo/gem5-users
