Adding scripts, commands, and logging scaffolding"

scripts/00_env.sh

@@ -0,0 +1,21 @@
+#!/bin/bash
+set -eu
+# source this from anywhere inside /home/carlos/projects/gem5
+
+ROOT="/home/carlos/projects/gem5"
+export GEM5="$ROOT/build/ARM/gem5.opt"
+export CFG="$ROOT/scripts/hetero_big_little.py"
+export RUN="$ROOT/gem5-run"
+export OUTROOT="$ROOT/iot/results"
+export LOGROOT="$ROOT/iot/logs"
+
+mkdir -p "$OUTROOT" "$LOGROOT"
+
+# record environment (append-only)
+{
+  echo "==== uname ===="; uname -a
+  echo; echo "==== date ===="; date
+  echo; echo "==== gem5 git ===="; (git -C "$ROOT/gem5src" rev-parse --short HEAD 2>/dev/null || echo n/a)
+} >> "$LOGROOT/env.txt"
+echo "[env] READY"
+