[dpdk-dev] [Bug 423] usertools/dpdk-setup.sh can not be used to run an application without compiling dpdk first

[dpdk-dev] [Bug 423] usertools/dpdk-setup.sh can not be used to run an application without compiling dpdk first

[bugzilla]

https://bugs.dpdk.org/show_bug.cgi?id=423

            Bug ID: 423
           Summary: usertools/dpdk-setup.sh can not be used to run an
                    application without compiling dpdk first
           Product: DPDK
           Version: unspecified
          Hardware: All
                OS: All
            Status: UNCONFIRMED
          Severity: minor
          Priority: Normal
         Component: other
          Assignee: dev@dpdk.org
          Reporter: sarosh.arif@emumba.com
  Target Milestone: ---

When running an application using usertools/dpdk-setup.sh script, such as
testpmd, the following command is executed "sudo $RTE_TARGET/app/testpmd".
Where $RTE_TARGET is a variable, which is set when we compile dpdk using
dpdk-setup script, otherwise it is empty. So lets say a person has pre-compiled
dpdk and is just using the script to set hugepages and run testpmd, he would
have to recompile just to set the variable. 

This issue can be resolved by asking the user to enter the name of his build
directory if $RTE_TARGET is empty. The name entered by the user can then be
stored in $RTE_TARGET.  

I can submit a patch if this solution seems appropriate.

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