2

The following works fine and I get the edgecnt out from 'ls' program on my ubuntu 14.04 system.. 

$ ../../../pin.sh -t obj-intel64/edgcnt.so -- /bin/ls

but while using it on my node application I got permission denied error:

$ ../../../pin.sh -t obj-intel64/edgcnt.so -- /home/samira/Documents/benchmarks/lets-chat/
/home/samira/Documents/benchmarks/lets-chat/ : Permission denied

I searched all the web about that but I haven't found any solution. I tried runing both node application and pin tool as root but it didn't solve the problem. Also used the pid to run: 

s# ../../../pin -pid 14191 -t obj-intel64/edgcnt.so -o myout.log
E: Could not attach to process 14191: need execute and read access to /proc/14191/exe

I tried to change the permission of /proc/ folder but the operation was not permitted even for the root.

Any idea?

samira
  • 399
  • 1
  • 3
  • 12

1 Answers1

1

while using pin on your node application,got permition denied,have you change the user group?

as a root,"root@server:~# echo 0 > /proc/sys/kernel/yama/ptrace_scope" may help your question.

"s# ../../../pin -pid 14191 -t obj-intel64/edgcnt.so -o myout.log E: Could not attach to process 14191: need execute and read access to /proc/14191/exe" I think this means the pid you want to trace doesn't exsist.

孫啟慧
  • 26
  • 3