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testsuites: tunend: trex: configure.sh: Use trex binary depending on host

gtplab* hosts worked fine with regular t-rex-64 binary, but c240-* and
epyc1 segfault when starting it, probably due to use of AVX in the
locally compiled binary. On those hosts, use t-rex-64-o binary instead,
which doesn't contain such optimizations and hence doesn't segfault.

Change-Id: Ia50f37e193c1cf6a89b46a815a4c5ca54dbfe576
---
M testsuites/gtplab-sysmo2025/tunend/trex/configure.sh
1 file changed, 19 insertions(+), 1 deletion(-)

git pull ssh://gerrit.osmocom.org:29418/upf-benchmark refs/changes/89/39889/1

diff --git a/testsuites/gtplab-sysmo2025/tunend/trex/configure.sh b/testsuites/gtplab-sysmo2025/tunend/trex/configure.sh
index aa3b97e..2667cb1 100755
--- a/testsuites/gtplab-sysmo2025/tunend/trex/configure.sh
+++ b/testsuites/gtplab-sysmo2025/tunend/trex/configure.sh
@@ -2,7 +2,25 @@
 
 SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
 
+case $(hostname) in
+gtplab0)
+        TREX_BIN="/opt/trex/t-rex-64"
+        ;;
+c240-1)
+        # Crashes at startup with "t-rex-64"
+        TREX_BIN="/opt/trex/t-rex-64-o"
+        ;;
+epyc1)
+        # Crashes at startup with "t-rex-64"
+        TREX_BIN="/opt/trex/t-rex-64-o"
+        ;;
+*)
+        echo "UNEXPECTED HOSTNAME: $(hostname)"
+        exit 1
+        ;;
+esac
+
 sudo sysctl -w vm.nr_hugepages=4096
 
 cd /opt/trex
-sudo /opt/trex/t-rex-64 -i --astf --software --tso-disable --no-scapy-server --cfg "${SCRIPT_DIR}/trex_cfg.yaml" --no-ofed-check
+sudo $TREX_BIN -i --astf --software --tso-disable --no-scapy-server --cfg "${SCRIPT_DIR}/trex_cfg.yaml" --no-ofed-check

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