#!/bin/bash
# Capture one DynamoRIO trace per selected SimPoint, then raw2trace + minimize.
#
# Mirrors scarab-infra's cluster_then_trace flow (common/scripts/
# run_simpoint_trace.py) with SEG_SIZE as both the fingerprint segment size and
# the drraw2trace chunk size, and one warmup chunk. Each released archive keeps
# chunk.0000 (warmup) + chunk.0001 (the SimPoint region) == 2 * SEG_SIZE
# instructions.
set -euo pipefail

W=/work/simpoint_flow/sqlite
SEG_SIZE=60000000
WARMUP_CHUNKS=1
BINCMD="/work/bin/sqlite_query /work/db/records.db 3 60000 50000 4900 5000 3000000"
DR=$DYNAMORIO_HOME

mapfile -t PAIRS < "$W/simpoints/selected.txt"   # "<segment> <cluster>" per line

echo "=== tracing ${#PAIRS[@]} simpoints ==="
pids=()
for pair in "${PAIRS[@]}"; do
    seg=${pair%% *}
    segdir="$W/traces_simp/$seg"
    rm -rf "$segdir"; mkdir -p "$segdir"

    roi_end=$(( (seg + 1) * SEG_SIZE ))
    warmup=$(( SEG_SIZE * WARMUP_CHUNKS ))
    roi_start=$(( seg * SEG_SIZE ))
    if [ "$roi_start" -gt "$warmup" ]; then
        roi_start=$(( roi_start - warmup ))
    else
        roi_start=0
    fi
    roi_len=$(( roi_end - roi_start ))

    echo "segment $seg: trace_after=$roi_start trace_for=$roi_len"
    if [ "$roi_start" -eq 0 ]; then
        "$DR"/bin64/drrun -disable_traces -max_bb_instrs 256 -opt_cleancall 2 \
            -t drcachesim -jobs 8 -outdir "$segdir" -offline \
            -count_fetched_instrs -trace_for_instrs "$roi_len" \
            -- $BINCMD >/dev/null 2>"$segdir/drrun.log" &
    else
        "$DR"/bin64/drrun -disable_traces -max_bb_instrs 256 -opt_cleancall 2 \
            -t drcachesim -jobs 8 -outdir "$segdir" -offline \
            -count_fetched_instrs -trace_after_instrs "$roi_start" \
            -trace_for_instrs "$roi_len" \
            -- $BINCMD >/dev/null 2>"$segdir/drrun.log" &
    fi
    pids+=($!)
done
for p in "${pids[@]}"; do wait "$p"; done
echo "=== tracing done ==="

echo "=== raw2trace ==="
pids=()
for pair in "${PAIRS[@]}"; do
    seg=${pair%% *}
    tp="$W/traces_simp/$seg"
    mv "$tp"/dr*/raw/ "$tp/raw/"
    mkdir -p "$tp/bin"
    cp "$tp/raw/modules.log" "$tp/bin/modules.log"
    cp "$tp/raw/modules.log" "$tp/raw/modules.log.bak"
    python2 /tmp_home/scarab/utils/memtrace/portabilize_trace.py "$tp" >/dev/null
    cp "$tp/bin/modules.log" "$tp/raw/modules.log"
    "$DR"/tools/bin64/drraw2trace -jobs 8 -indir "$tp/raw" \
        -chunk_instr_count "$SEG_SIZE" >"$tp/raw2trace.log" 2>&1 &
    pids+=($!)
done
for p in "${pids[@]}"; do wait "$p"; done
echo "=== raw2trace done ==="

echo "=== minimize ==="
dest="$W/traces_simp/trace"
mkdir -p "$dest" "$W/traces_simp/bin"
keep=$(( WARMUP_CHUNKS + 1 ))
for pair in "${PAIRS[@]}"; do
    seg=${pair%% *}
    tp="$W/traces_simp/$seg"
    src=$(find "$tp" -name 'drmemtrace.*.trace.zip' | head -1)
    big="$tp/trace/$seg.big.zip"
    mv "$src" "$big"
    nchunk=$(unzip -l "$big" | grep -c 'chunk\.')
    echo "segment $seg: $nchunk chunks in full archive"
    chunks=""
    for ((i = 0; i < keep; i++)); do chunks="$chunks $(printf 'chunk.%04d' $i)"; done
    ( cd "$tp/trace" && zip "$seg.big.zip" --copy $chunks --out "$dest/$seg.zip" >/dev/null )
    rm -f "$big"
    cp "$tp/bin/modules.log" "$W/traces_simp/bin/modules.log"
done
echo "=== minimize done ==="
ls -la "$dest"