Henrik Muehe
e3c059eb9b
- Dockerfile.gplan: pre-built armv7 image with cbang + camotics objects - build-gplan.sh: relinks against Python 3.5m in ~3sec - Pi Python 3.5 headers cached in .pi/pi-python35.tar.gz (gitignored)
59 lines
2.2 KiB
Bash
Executable File
59 lines
2.2 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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# Build gplan.so for the Onefinity Pi (armv7l, Python 3.5)
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#
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# First run: ~30min (builds the Docker image with pre-compiled cbang/camotics)
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# After that: ~2sec (just relinks against Python 3.5m)
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#
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# Prerequisites:
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# - Docker with QEMU binfmt support (default on Docker Desktop)
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# - Python 3.5 headers from the Pi in .pi/pi-python35.tar.gz
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# Grab once: ssh bbmc@10.1.10.55 'tar czf - /usr/include/python3.5m \
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# /usr/lib/arm-linux-gnueabihf/libpython3.5m.so*' > .pi/pi-python35.tar.gz
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SCRIPT_DIR="$(cd "$(dirname "$0")" && pwd)"
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PROJECT_DIR="$(dirname "$SCRIPT_DIR")"
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IMAGE="onefin-gplan"
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HEADERS="$SCRIPT_DIR/pi-python35.tar.gz"
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OUTPUT="$PROJECT_DIR/src/py/camotics/gplan.so"
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# Check for Python 3.5 headers
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if [[ ! -f "$HEADERS" ]]; then
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echo "Python 3.5 headers not found at $HEADERS"
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echo "Fetching from Pi..."
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ssh bbmc@10.1.10.55 'tar czf - /usr/include/python3.5m \
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/usr/lib/arm-linux-gnueabihf/libpython3.5m.so*' > "$HEADERS"
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fi
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# Build image if needed (one-time, ~30min)
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if ! docker image inspect "$IMAGE" >/dev/null 2>&1; then
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echo "Building $IMAGE Docker image (one-time, ~30min under QEMU)..."
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docker build --platform linux/arm/v7 -t "$IMAGE" -f "$SCRIPT_DIR/Dockerfile.gplan" "$SCRIPT_DIR"
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fi
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# Relink gplan.so against Python 3.5m (~2sec)
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echo "Linking gplan.so against Python 3.5m..."
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docker run --rm --platform linux/arm/v7 \
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-v "$HEADERS:/tmp/pi-python35.tar.gz:ro" \
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-v "$PROJECT_DIR:/workspace" \
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"$IMAGE" bash -c '
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tar xzf /tmp/pi-python35.tar.gz -C /
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ln -sf /usr/lib/arm-linux-gnueabihf/libpython3.5m.so.1.0 \
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/usr/lib/arm-linux-gnueabihf/libpython3.5m.so
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g++ -o /workspace/src/py/camotics/gplan.so \
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-Wl,--as-needed -Wl,-s -Wl,-x -Wl,--gc-sections -pthread -shared \
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build/gplan.os -L/opt/cbang/lib \
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build/libCAMoticsPy.a build/libCAMotics.a build/libDXF.a \
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build/libSTL.a build/libGCode.a \
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-lstdc++ -lutil -lm -ldl -lz -lcbang -lcbang-boost \
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-lssl -lcrypto -llz4 -lexpat -lbz2 -lcrypt -lpthread \
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-lpython3.5m build/dxflib/libdxflib.a
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file /workspace/src/py/camotics/gplan.so
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readelf -d /workspace/src/py/camotics/gplan.so | grep python
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'
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echo "✓ Built: $OUTPUT"
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