Disable tcl and telnet servers when running OpenOCD #38
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…numbers might conflict with other processes.
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Hi @timsifive, I am hoping that this will be the last of the changes I need to make in order to make it safe to run multiple
gdbserver.pyprocesses on the same machine. We're still occasionally getting port conflict errors, even with my last set of changes. Looking atopenocd.logmore carefully, I realized that it wasn't actually a conflict with the gdb server, but instead the tcl server that OpenOCD starts up:I realized that by default, OpenOCD starts up both a tcl server and a telnet server which allow you to issue tcl commands to OpenOCD, and which bind to ports 6666 and 4444 respectively. The problem is that if you have multiple processes running OpenOCD, you get conflicts on these ports, even though they're not really being used.
In this PR, I've updated the OpenOCD wrapper class with a couple more commands to disable both the tcl and telnet servers, and I checked that this still runs correctly with the local tests that use this script.