233 lines
8.3 KiB
Bash
Executable File
233 lines
8.3 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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cd "$(dirname "$0")"
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# LinuxCNC source basis: this probe derives required Python C API exports from
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# RS274 Python/remap sources in src/emc/rs274ngc, including
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# interp_namedparams.cc, interp_o_word.cc, interp_python.cc, interp_remap.cc,
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# rs274ngc_pre.cc, and the py*/module binding sources.
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linuxcnc_root=${LINUXCNC_ROOT:-../linuxcnc}
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cxx=${CXX:-g++}
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if [[ -z ${CXX:-} ]] && command -v ccache >/dev/null 2>&1; then
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cxx="ccache $cxx"
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fi
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build_jobs=${CNC_SIM_BUILD_JOBS:-8}
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if ! [[ "$build_jobs" =~ ^[1-9][0-9]*$ ]]; then
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echo "CNC_SIM_BUILD_JOBS must be a positive integer: $build_jobs" >&2
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exit 1
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fi
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build_dir=${CNC_SIM_WASM_PYTHON_C_API_BUILD_DIR-build/wasm-python-c-api-symbols}
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if [[ -z "$build_dir" ]]; then
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echo "CNC_SIM_WASM_PYTHON_C_API_BUILD_DIR must not be empty" >&2
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exit 1
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fi
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if [[ "$build_dir" =~ [[:space:]] ]]; then
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echo "CNC_SIM_WASM_PYTHON_C_API_BUILD_DIR must not contain whitespace: $build_dir" >&2
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exit 1
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fi
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mkdir -p "$build_dir"
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build_dir=$(cd "$build_dir" && pwd)
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if [[ "$build_dir" == "/" ]]; then
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echo "CNC_SIM_WASM_PYTHON_C_API_BUILD_DIR must not be the filesystem root" >&2
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exit 1
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fi
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exec 9>"$build_dir/python-c-api.lock"
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flock 9
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preflight_cache_dir=${CNC_SIM_PREFLIGHT_CACHE_DIR:-"$build_dir/preflight-cache"}
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LINUXCNC_ROOT="$linuxcnc_root" ./check-linuxcnc-inputs-cached.sh --cache-dir "$preflight_cache_dir" --root-only
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linuxcnc_root=$(cd "$linuxcnc_root" && pwd)
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python_c_api_shim=$(./list-linuxcnc-wasm-safe-shims.sh python_c_api_shim.cc)
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runtime_shim=$(./list-linuxcnc-wasm-safe-shims.sh linuxcnc_runtime_shim.cc)
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linuxcnc_source_output=$(LINUXCNC_ROOT="$linuxcnc_root" ./list-linuxcnc-source-files.sh \
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src/emc/rs274ngc/interp_namedparams.cc \
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src/emc/rs274ngc/interp_o_word.cc \
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src/emc/rs274ngc/interp_python.cc \
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src/emc/rs274ngc/interp_remap.cc \
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src/emc/rs274ngc/interp_setup.cc \
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src/emc/rs274ngc/rs274ngc_pre.cc \
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src/emc/rs274ngc/pyarrays.cc \
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src/emc/rs274ngc/pyblock.cc \
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src/emc/rs274ngc/pyemctypes.cc \
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src/emc/rs274ngc/pyinterp1.cc \
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src/emc/rs274ngc/pyparamclass.cc \
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src/emc/rs274ngc/canonmodule.cc \
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src/emc/rs274ngc/interpmodule.cc \
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src/emc/rs274ngc/gcodemodule.cc)
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mapfile -t linuxcnc_sources <<<"$linuxcnc_source_output"
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python_binding_sources=("${linuxcnc_sources[@]:6}")
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common_flag_output=$(LINUXCNC_ROOT="$linuxcnc_root" ./list-linuxcnc-wasm-common-cxxflags.sh)
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mapfile -t common_flags <<<"$common_flag_output"
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objects=(
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"$build_dir/python_c_api_shim.o"
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"$build_dir/runtime_shim.o"
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)
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object_sources=(
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"$python_c_api_shim"
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"$runtime_shim"
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)
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for source in "${python_binding_sources[@]}"; do
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object_name=$(basename "$source" .cc)
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objects+=("$build_dir/$object_name.o")
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object_sources+=("$source")
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done
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signature="$build_dir/python-c-api.signature"
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next_signature="$build_dir/python-c-api.signature.next"
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{
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printf 'CXX=%s\n' "$cxx"
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printf 'PWD=%s\n' "$PWD"
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printf 'LINUXCNC_ROOT=%s\n' "$linuxcnc_root"
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printf 'BUILD_RULE_VERSION=1\n'
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printf 'COMMON_FLAGS='
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printf ' %s' "${common_flags[@]}"
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printf '\n'
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printf 'SOURCES:\n'
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printf '%s\n' "${object_sources[@]}"
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} > "$next_signature"
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if [[ ! -f "$signature" ]] || ! cmp -s "$signature" "$next_signature"; then
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rm -f "$build_dir"/*.o "$build_dir"/*.d
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fi
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mv "$next_signature" "$signature"
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makefile="$build_dir/python-c-api.mk"
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{
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printf 'CXX := %s\n' "$cxx"
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printf 'COMMON_FLAGS :='
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printf ' %s' "${common_flags[@]}"
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printf '\n\n'
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printf 'OBJECTS :='
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printf ' %s' "${objects[@]}"
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printf '\n\n'
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printf 'DEP_FILES :=\n'
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for object in "${objects[@]}"; do
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printf 'DEP_FILES += %s.d\n' "$object"
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done
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printf '\n.PHONY: all\n'
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printf 'all: $(OBJECTS)\n\n'
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object_index=0
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for source in "${object_sources[@]}"; do
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printf '%s: %s\n' "${objects[$object_index]}" "$source"
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printf '\t@$(CXX) $(COMMON_FLAGS) -MMD -MP -MF %s.d -c %s -o %s\n\n' "${objects[$object_index]}" "$source" "${objects[$object_index]}"
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object_index=$((object_index + 1))
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done
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printf '\n-include $(DEP_FILES)\n'
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} > "$makefile"
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make --output-sync=target -j"$build_jobs" -f "$makefile" >/dev/null
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source_symbols_signature="$build_dir/python-c-api.source-symbols.signature"
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source_symbols_next_signature="$build_dir/python-c-api.source-symbols.signature.next"
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{
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printf 'SOURCE_SYMBOL_RULE_VERSION=1\n'
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printf 'LINUXCNC_SOURCES:\n'
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printf '%s\n' "${linuxcnc_sources[@]}"
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printf 'SOURCE_STATS:\n'
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stat -c 'SOURCE=%n:%s:%y' "${linuxcnc_sources[@]}"
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} > "$source_symbols_next_signature"
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if [[ ! -f "$source_symbols_signature" || ! -f "$build_dir/linuxcnc.py-tokens" ]] ||
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! cmp -s "$source_symbols_signature" "$source_symbols_next_signature"; then
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rg -o 'Py[A-Za-z0-9_]+' "${linuxcnc_sources[@]}" \
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| sed 's/^.*://' \
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| LC_ALL=C sort -u \
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> "$build_dir/linuxcnc.py-tokens"
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mv "$source_symbols_next_signature" "$source_symbols_signature"
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else
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rm -f "$source_symbols_next_signature"
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fi
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object_symbols_signature="$build_dir/python-c-api.object-symbols.signature"
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object_symbols_next_signature="$build_dir/python-c-api.object-symbols.signature.next"
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{
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printf 'OBJECT_SYMBOL_RULE_VERSION=1\n'
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stat -c 'OBJECT=%n:%s:%y' "${objects[@]}"
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} > "$object_symbols_next_signature"
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if [[ ! -f "$object_symbols_signature" ||
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! -f "$build_dir/shim.exports" ||
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! -f "$build_dir/object.undefined" ||
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! -f "$build_dir/object.defined" ]] ||
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! cmp -s "$object_symbols_signature" "$object_symbols_next_signature"; then
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nm --defined-only "$build_dir/python_c_api_shim.o" \
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| awk '$2 ~ /^[A-Z]$/ {print $3}' \
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| LC_ALL=C sort -u \
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> "$build_dir/shim.exports"
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nm -u "$build_dir"/*.o \
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| awk '{print $2}' \
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| sed '/^$/d' \
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| LC_ALL=C sort -u \
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> "$build_dir/object.undefined"
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nm --defined-only "$build_dir"/*.o \
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| awk '{print $3}' \
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| sed '/^$/d' \
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| LC_ALL=C sort -u \
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> "$build_dir/object.defined"
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mv "$object_symbols_next_signature" "$object_symbols_signature"
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else
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rm -f "$object_symbols_next_signature"
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fi
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awk '
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$0 == "PyObject" { next }
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$0 == "PyTypeObject" { next }
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$0 == "Py_None" { next }
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$0 == "Py_TYPE" { next }
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$0 == "Py_XDECREF" { next }
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$0 == "Py_DECREF" { next }
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$0 == "PyList_SET_ITEM" { next }
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$0 == "PyTuple_SET_ITEM" { next }
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$0 == "PyObject_HEAD" { next }
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$0 == "PyVarObject_HEAD_INIT" { next }
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$0 == "PyModuleDef_HEAD_INIT" { next }
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$0 == "Py_TPFLAGS_DEFAULT" { next }
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$0 == "PyCFunction" { next }
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$0 == "PyGetSetDef" { next }
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$0 == "PyMemberDef" { next }
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$0 == "PyMethodDef" { next }
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$0 == "PyModuleDef" { next }
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$0 == "PyMODINIT_FUNC" { next }
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$0 == "PyObject_New" { next }
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$0 == "PyInit_emccanon" { next }
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$0 == "PyInit_gcode" { next }
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$0 == "PyInit_interpreter" { next }
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$0 == "PyErr_Ocurred" { next }
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$0 == "PyFloat_CheckAndError" { next }
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$0 == "PyLong_CheckAndError" { next }
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$0 == "Python" { next }
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$0 == "PythonPlugin" { next }
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{ print }
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' "$build_dir/linuxcnc.py-tokens" > "$build_dir/required.exports"
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comm -23 "$build_dir/required.exports" "$build_dir/shim.exports" > "$build_dir/missing.exports"
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if [[ -s "$build_dir/missing.exports" ]]; then
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echo "missing wasm Python C API shim exports used by LinuxCNC rs274 sources:" >&2
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cat "$build_dir/missing.exports" >&2
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exit 1
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fi
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for macro in Py_None Py_TYPE Py_XDECREF Py_DECREF PyTuple_SET_ITEM PyList_SET_ITEM PyObject_New; do
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if ! grep -F "#define $macro" core/wasm_shims/boost/python/object.hpp >/dev/null; then
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echo "missing wasm Python C API shim macro used by LinuxCNC rs274 sources: $macro" >&2
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exit 1
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fi
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done
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grep -F "Py_DecRef" core/wasm_shims/boost/python/object.hpp >/dev/null
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grep -F "_Py_NoneStructPtr" core/wasm_shims/boost/python/object.hpp >/dev/null
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grep -F 'extern "C" PyObject *PyInit_gcode(void)' core/wasm_shims/linuxcnc_runtime_shim.cc >/dev/null
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comm -23 "$build_dir/object.undefined" "$build_dir/object.defined" \
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| awk '/^_?Py/ { print }' \
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> "$build_dir/object.missing-python"
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if [[ -s "$build_dir/object.missing-python" ]]; then
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echo "missing wasm Python C API object definitions used by LinuxCNC rs274 bindings:" >&2
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cat "$build_dir/object.missing-python" >&2
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exit 1
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fi
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echo "linuxcnc wasm Python C API symbol probe passed"
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