Harden LinuxCNC wasm and native probe workflows

test-linuxcnc-wasm-rs274ngc-pre-link.sh

@@ -0,0 +1,91 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+cd "$(dirname "$0")"
+
+linuxcnc_root=${LINUXCNC_ROOT:-../linuxcnc}
+cxx=${CXX:-g++}
+build_dir=$(mktemp -d "${TMPDIR:-/tmp}/cnc_sim_linuxcnc_wasm_rs274ngc_pre_link.XXXXXX")
+manifest=${1:-linuxcnc-rs274-wasm-source-files.txt}
+
+if [[ ! -f "$manifest" ]]; then
+    echo "missing manifest: $manifest" >&2
+    exit 1
+fi
+
+if [[ ! -d "$linuxcnc_root" ]]; then
+    echo "missing LinuxCNC root: $linuxcnc_root" >&2
+    exit 1
+fi
+trap 'rm -rf "$build_dir"' EXIT
+
+common_flags=(
+    -std=c++20
+    -DULAPI
+    -ffunction-sections
+    -fdata-sections
+    -I "$(pwd)/core/src"
+    -include wctype.h
+    -I "$(pwd)/core/include"
+    -I "$(pwd)/core/wasm_shims"
+    -I "$linuxcnc_root/src"
+    -I "$linuxcnc_root/src/emc"
+    -I "$linuxcnc_root/src/emc/nml_intf"
+    -I "$linuxcnc_root/src/emc/rs274ngc"
+    -I "$linuxcnc_root/src/emc/motion"
+    -I "$linuxcnc_root/include"
+)
+
+sources=(
+    core/wasm_shims/dlfcn.cc
+    core/wasm_shims/emc_status_shim.cc
+    core/wasm_shims/gettext_shim.cc
+    core/wasm_shims/linuxcnc_runtime_shim.cc
+    core/wasm_shims/python_c_api_shim.cc
+    core/wasm_shims/rtapi_compat.cc
+    core/wasm_shims/tooldata/tooldata_mmap_backend.cc
+    core/wasm_shims/tooldata/tooldata_runtime_stubs.cc
+    core/wasm_shims/pythonplugin/python_plugin.cc
+    core/src/canon_event_sink.cpp
+    core/src/linuxcnc_canon_bridge.cpp
+    core/src/linuxcnc_tooldata_fixture.cpp
+    core/src/rtcp_kinematics.cpp
+)
+
+while IFS=: read -r group path note; do
+    case "$group" in
+        core)
+            if [[ ! -f "$linuxcnc_root/$path" ]]; then
+                echo "missing manifest source: $path" >&2
+                exit 1
+            fi
+            sources+=("$linuxcnc_root/$path")
+            ;;
+        ""|\#*|blocked)
+            ;;
+        *)
+            echo "unknown manifest group: $group" >&2
+            exit 1
+            ;;
+    esac
+done < "$manifest"
+
+sources+=(core/wasm_shims/rs274ngc_pre_probe_main.cc)
+
+objects=()
+object_index=0
+for source in "${sources[@]}"; do
+    obj="$build_dir/source_${object_index}.o"
+    "$cxx" "${common_flags[@]}" -c "$source" -o "$obj"
+    objects+=("$obj")
+    object_index=$((object_index + 1))
+done
+
+"$cxx" "${objects[@]}" \
+    -Wl,--gc-sections \
+    -lfmt \
+    -o "$build_dir/rs274ngc_pre_probe"
+
+"$build_dir/rs274ngc_pre_probe"
+
+echo "linuxcnc wasm rs274ngc_pre link probe passed"