pcbjam/scripts/kicad/build-kicad-target.sh
Istvan Matejcsok 27992f4f18 feat(3d): gl1 shim M4+M6+M7 — GLU quadrics, production link, stub retired; 47/47 parity
- gl1_glu: gluCylinder/gluDisk/gluSphere per the SGI GLU reference
  tessellation (sin/cos phase, strip emission order, pole fans — Apple's
  GLU derives from the same source, so vertices match the goldens);
  emission goes through the public glBegin/glVertex entry points so
  quadrics record into display lists
- glLineWidth>1 one-time warning (browsers clamp to 1; affected coverage
  stays under the parity floor — zero floors.json overrides needed)
- production link site: build-kicad-target.sh now compiles wasm/gl1 from
  sources.txt and applies wrapped_symbols.txt --wrap flags (same manifests
  as the test harness); kicad_editor's RENDER_3D_OPENGL links against the
  real emulation layer instead of no-ops
- wasm/stubs/gl_ffp_stub.c deleted (role fully superseded; history in git)
- docs: 3d-regression README port-status section (floor-blind small
  geometry + line-width caveats), harness comments de-red-stated

Parity: 47/47 under the 0.02 floor, zero overrides. Native golden path
byte-identical to bb0e238 (whose gate ran green) — scenarios/, native/,
baseline/, manifest, floors, spec all untouched by the port.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
2026-07-03 15:45:58 +02:00

671 lines
32 KiB
Shell
Executable file

#!/bin/bash
# Build a KiCad app (pcbnew, eeschema, calculator, pl_editor) for WebAssembly.
#
# Usage:
# ./scripts/kicad/build-kicad-target.sh <app> [options]
#
# Args:
# <app> pcbnew | eeschema | calculator | pl_editor (required)
#
# Options:
# --full Full clean rebuild (dependencies + KiCad)
# --clean-kicad Clean only KiCad build directory (not deps)
# --build-deps Build dependencies (default: skip)
# --debug Build with debug symbols (default)
# --release Build optimized without debug symbols
# --diag=... Diagnostic preprocessor flags (gal, coroutine, ctor, all)
# -j N Parallel compilation jobs (default: 1)
#
# Each app builds into its own tree: build-wasm/kicad-<app>/.
# Per-app extras live alongside generic stubs:
# - wasm/bindings/<app>_embind.cpp (optional)
# - wasm/stubs/<app>_frame_stub.cpp (optional, app-specific stubs)
# - wasm/stubs/<app>_scripting_stub.cpp (optional, app-specific scripting stubs)
#
# Most apps use the same name for the user-facing app, the CMake target, and
# the source subdirectory. Calculator is the exception: app=calculator but the
# upstream target and source subdir are both pcb_calculator (the OUTPUT_NAME
# property in pcb_calculator/CMakeLists.txt emits calculator.{js,wasm}).
# pl_editor is the standard case but its source subdir is pagelayout_editor.
set -e
if [ -z "$1" ]; then
echo "Error: missing <app> argument (kicad_editor | pcbnew | eeschema | calculator | pl_editor | gerbview)" >&2
exit 1
fi
APP_NAME="$1"
shift
# KICAD_TARGET: the CMake/make target name.
# KICAD_SUBDIR: the source/build subdirectory the target's artifacts land in.
# Most apps share all three names; the exceptions:
# - calculator: target+subdir are both pcb_calculator (OUTPUT_NAME=calculator)
# - pl_editor: subdir is pagelayout_editor (upstream source dir name)
# The footprint/symbol editors have no target of their own — the pcbnew/eeschema
# bundle opens them at runtime via single_top.cpp's --frame flag.
case "$APP_NAME" in
kicad_editor)
# Merged pcbnew+eeschema image (editor-unification Part 2): one executable
# linking BOTH kifaces, frame chosen at runtime by --frame (pcb/fpedit/sch/
# symedit). Target lives in wasm/editor/ (added by the fork's top-level
# CMakeLists under -DKICAD_WASM_MERGED_EDITOR=ON); its binary dir doubles as
# the artifact subdir.
KICAD_TARGET="kicad_editor"
KICAD_SUBDIR="kicad_editor"
;;
pcbnew|eeschema|gerbview)
KICAD_TARGET="$APP_NAME"
KICAD_SUBDIR="$APP_NAME"
;;
pl_editor)
KICAD_TARGET="pl_editor"
KICAD_SUBDIR="pagelayout_editor"
;;
calculator)
KICAD_TARGET="pcb_calculator"
KICAD_SUBDIR="pcb_calculator"
;;
sym_convert)
# Standalone .lib -> .kicad_sym converter (node CLI). Its add_executable
# lives in eeschema/CMakeLists.txt (gated by KICAD_SYM_CONVERTER_WASM), so
# artifacts land in the eeschema/ subdir of its own kicad-sym_convert tree.
KICAD_TARGET="sym_convert"
KICAD_SUBDIR="eeschema"
;;
occ_service)
# Standalone OpenCASCADE 3D service (worker embind module). Target lives
# in wasm/occ-service/ (added by the fork's top-level CMakeLists under
# -DKICAD_OCC_SERVICE_WASM=ON); like kicad_editor, its binary dir
# doubles as the artifact subdir of its own kicad-occ_service tree.
KICAD_TARGET="occ_service"
KICAD_SUBDIR="occ_service"
;;
*)
echo "Error: unknown app '$APP_NAME' (expected: kicad_editor | pcbnew | eeschema | calculator | pl_editor | gerbview | sym_convert | occ_service)" >&2
exit 1
;;
esac
# Which app's embind bindings to compile + link. Most apps use their own; the
# sym_convert CLI links the eeschema kiface objects, which reference eeschema's
# embind symbols (kicadCollabOnSave et al.) — reuse eeschema's embind object.
case "$APP_NAME" in
sym_convert) EMBIND_APP="eeschema" ;;
# occ_service links the pcbnew kiface objects → pcbnew's embind object, same
# reason (its own embind entry points live in occ_service_main.cpp, compiled
# inside the CMake target).
occ_service) EMBIND_APP="pcbnew" ;;
*) EMBIND_APP="$APP_NAME" ;;
esac
# Which app's WASM stub libraries (scripting/frame placeholders) to link.
# sym_convert links the eeschema kiface objects, so it needs eeschema's frame
# stub (eeschema_frame_stub.cpp). kicad_editor links pcbnew's kiface objects, which
# reference the action-plugin scripting placeholders (pcbnewGet*); eeschema's frame
# stub arrives via CMake (target_sources on eeschema_kiface_objects), not this path.
case "$APP_NAME" in
sym_convert) STUB_APP="eeschema" ;;
kicad_editor) STUB_APP="pcbnew" ;;
# occ_service links the pcbnew kiface objects → pcbnew's stubs (frame +
# action-plugin scripting placeholders), like the editors.
occ_service) STUB_APP="pcbnew" ;;
*) STUB_APP="$APP_NAME" ;;
esac
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "${SCRIPT_DIR}/../common/env.sh"
source "${SCRIPT_DIR}/../common/versions.sh"
source "${SCRIPT_DIR}/../common/functions.sh"
source "${SCRIPT_DIR}/../common/stages.sh"
KICAD_DIR="${PROJECT_ROOT}/kicad"
WASM_LAYER="${PROJECT_ROOT}/wasm"
KICAD_BUILD="${BUILD_ROOT}/kicad-${APP_NAME}"
KICAD_STAMP="${BUILD_ROOT}/stamps/kicad-${APP_NAME}.stamp"
WX_BUILD="${BUILD_ROOT}/wxwidgets"
# Parse arguments - incremental build by default (optimized for development)
NO_CLEAN=1
FULL_CLEAN=0
SKIP_DEPS=1
DEBUG=0
DIAG_LIST=""
while [[ $# -gt 0 ]]; do
case $1 in
--full)
FULL_CLEAN=1
NO_CLEAN=0
SKIP_DEPS=0
shift
;;
--clean-kicad)
NO_CLEAN=0
shift
;;
--build-deps)
SKIP_DEPS=0
shift
;;
--debug)
DEBUG=1
shift
;;
--release)
DEBUG_BUILD=0
export DEBUG_BUILD
shift
;;
--diag=*)
DIAG_LIST="${1#--diag=}"
shift
;;
--diag)
DIAG_LIST="$2"
shift 2
;;
-j)
export JOBS="$2"
shift 2
;;
-j*)
export JOBS="${1#-j}"
shift
;;
*)
shift
;;
esac
done
# Diagnostic preprocessor defines from --diag=<csv> (gal, coroutine, ctor, all).
# These gate the KI_DIAG_* macros in kicad/include/kicad_wasm_diag.h. Output goes
# to stdout ([KICAD_OUT] logs), never errors. Off by default.
DIAG_DEFINES=""
if [ -n "${DIAG_LIST}" ]; then
IFS=',' read -ra _diag_cats <<< "${DIAG_LIST}"
for _cat in "${_diag_cats[@]}"; do
case "${_cat}" in
gal) DIAG_DEFINES="${DIAG_DEFINES} -DKICAD_DIAG_GAL=1" ;;
coroutine) DIAG_DEFINES="${DIAG_DEFINES} -DKICAD_DIAG_COROUTINE=1" ;;
ctor) DIAG_DEFINES="${DIAG_DEFINES} -DKICAD_DIAG_CTOR=1" ;;
all) DIAG_DEFINES="${DIAG_DEFINES} -DKICAD_DIAG_GAL=1 -DKICAD_DIAG_COROUTINE=1 -DKICAD_DIAG_CTOR=1" ;;
"") ;;
*) log_warn "Unknown --diag category: '${_cat}' (valid: gal, coroutine, ctor, all)" ;;
esac
done
log_info "Diagnostic logging enabled:${DIAG_DEFINES}"
fi
log_info "Building app: ${APP_NAME}"
log_info "Using ${JOBS} parallel jobs"
# Step 1: Clean build directories
if [ $FULL_CLEAN -eq 1 ]; then
log_info "Full clean: removing all stamps and build directories..."
rm -rf "${STAMPS_DIR}"/*
rm -rf "${BUILD_ROOT}/deps"/*
rm -rf "${BUILD_ROOT}/wxwidgets"
rm -rf "${BUILD_ROOT}/stubs"
rm -rf "${KICAD_BUILD}"
rm -rf "${SYSROOT}"/*
elif [ $NO_CLEAN -eq 0 ]; then
log_info "Cleaning KiCad ${APP_NAME} build directory..."
rm -rf "${KICAD_BUILD}" "${KICAD_STAMP}"
else
log_info "Incremental build (use --clean-kicad or --full to clean)"
fi
# Step 2: Build dependencies
# Note: --with-occ for OpenCASCADE, but NOT ngspice since KICAD_SPICE=OFF
if [ $SKIP_DEPS -eq 0 ]; then
kw_stage deps
log_info "Building dependencies..."
"${SCRIPT_DIR}/../deps/build-all-deps.sh" --with-occ
else
log_info "Skipping dependencies (use --build-deps or --full to build)"
fi
# Note: We don't check the KiCad stamp here for incremental builds.
# CMake handles dependency tracking - it will detect changed source files
# and only recompile what's needed. The stamp is created at the end for
# scripts that want to know if KiCad was ever built successfully.
# Step 4: Build wxWidgets (incremental - only recompiles changed files)
kw_stage wxwidgets
log_info "Building wxWidgets..."
"${SCRIPT_DIR}/../build-wx-wasm.sh" --no-clean
log_info "Building KiCad ${APP_NAME} ${KICAD_VERSION} for WASM..."
# Step 5: Set build type
# Exception model: native WebAssembly exceptions (legacy binary encoding) + wasm setjmp/longjmp,
# single-sourced from scripts/common/env.sh (KiCad and wxWidgets must agree — mixing EH models
# link-fails / traps; both build with exceptions enabled). -matomics -mbulk-memory are required for
# shared memory (pthreads).
KICAD_EH_FLAGS="$DEPS_EH_FLAGS"
log_info "KiCad EH model flags: ${KICAD_EH_FLAGS}"
# Use environment DEBUG_BUILD if set, otherwise check local --debug flag
# NOTE: We use -O1 for debug builds because -O0 produces WASM with too many
# locals for V8/Chrome to compile (error: "local count too large").
# -O1 keeps debug info but optimizes enough to stay under V8's limits.
if [ "${DEBUG_BUILD:-0}" = "1" ] || [ $DEBUG -eq 1 ]; then
BUILD_TYPE="Debug"
EXTRA_FLAGS="-g -O1 ${KICAD_EH_FLAGS} -matomics -mbulk-memory"
# CMake defines DEBUG for Config=Debug (kicad/CMakeLists.txt:351). The embind TU (Step 7) is
# compiled OUTSIDE CMake, so it must define DEBUG too — otherwise a DEBUG-gated virtual
# (EDA_ITEM::Show, eda_item.h:471) occupies a vtable slot in the core's emitted vtable that the
# embind TU doesn't account for, shifting every later slot by one. Then every virtual call made
# from the embind TU past that slot (SetWidth/GetPosition/...) reads the wrong vtable offset and
# mis-dispatches at runtime (call_indirect signature-mismatch trap; under native-EH the trap is
# swallowed by the apply coroutine's catch_all → silent hang). See task #54 root-cause analysis.
EMBIND_CONFIG_DEFINES="-DDEBUG"
# -gseparate-dwarf puts debug info in a separate .debug.wasm file
# This keeps the main WASM small (~200MB) while preserving full debug info
# DevTools loads the debug file on-demand when debugging
LINKER_DEBUG_FLAGS="-O1 -g -gseparate-dwarf ${KICAD_EH_FLAGS}"
log_info "Building KiCad in DEBUG mode (separate DWARF for smaller main binary)"
else
BUILD_TYPE="Release"
EXTRA_FLAGS="-O2 ${KICAD_EH_FLAGS} -matomics -mbulk-memory"
EMBIND_CONFIG_DEFINES="" # Release defines no DEBUG in either TU → vtable layouts already match
# -O0 at link time skips wasm-opt (which can OOM on large WASM files)
# Compilation is still -O2 for optimized code, but we skip post-link wasm-opt
LINKER_DEBUG_FLAGS="-O0 ${KICAD_EH_FLAGS}"
log_info "Building KiCad in RELEASE mode (skipping wasm-opt due to memory limits)"
fi
# Step 6: Create build directory
mkdir -p "${KICAD_BUILD}"
cd "${KICAD_BUILD}"
# Step 6.1: Build stub libraries for missing symbols
# Generic stubs (libgit2, curl, nng) are shared across apps and built in BUILD_ROOT/stubs.
# App-specific stubs (e.g. pcbnew_scripting_stub) build into the same directory but
# are only linked in when the corresponding source exists.
STUBS_DIR="${PROJECT_ROOT}/wasm/stubs"
STUBS_BUILD="${BUILD_ROOT}/stubs"
mkdir -p "${STUBS_BUILD}"
# ABI-affecting flags shared by EVERY C++ TU compiled OUTSIDE CMake (the embind + the app stubs below).
# The core CMake TUs get all of these (DEBUG via Config=Debug -> kicad/CMakeLists.txt:351;
# KICAD_USE_PLATFORM_WASM; the char16_t char_traits force-include). A TU that misses any of them can
# diverge in vtable layout / ABI from the core — task #54: the embind missing -DDEBUG shifted its vtable
# slot offsets by one and hung the collab apply (call_indirect signature-mismatch). Keep them in ONE
# place so no out-of-CMake C++ TU can skew again. (EMBIND_CONFIG_DEFINES holds the build-config -DDEBUG,
# set in the BUILD_TYPE block above; empty in Release where neither side defines DEBUG.)
KICAD_TU_ABI_FLAGS="${EMBIND_CONFIG_DEFINES} -DKICAD_USE_PLATFORM_WASM=1 -include ${STUBS_DIR}/char_traits_uint16_workaround.h"
kw_stage kicad-stubs
log_info "Building stub libraries..."
# Compile libgit2 stub
emcc -c "${STUBS_DIR}/libgit2_stub.c" -o "${STUBS_BUILD}/libgit2_stub.o"
emar rcs "${STUBS_BUILD}/libgit2_stub.a" "${STUBS_BUILD}/libgit2_stub.o"
# Compile curl stub
emcc -c "${STUBS_DIR}/curl_stub.c" -o "${STUBS_BUILD}/curl_stub.o"
emar rcs "${STUBS_BUILD}/libcurl_stub.a" "${STUBS_BUILD}/curl_stub.o"
# Note: the GLU tesselator is provided by kicad/libs/kimath/glu_tess/glu_tess_impl.cpp,
# compiled as part of the GAL library (requires KiCad headers).
# Compile NNG stub (IPC API requires NNG but sockets don't work in WASM)
emcc -c -I"${STUBS_DIR}" "${STUBS_DIR}/nng_stub.c" -o "${STUBS_BUILD}/nng_stub.o"
emar rcs "${STUBS_BUILD}/libnng_stub.a" "${STUBS_BUILD}/nng_stub.o"
# wx flags for any C++ stubs that include wx headers
WX_CXXFLAGS=$("${WX_BUILD}/wx-config" --cxxflags 2>/dev/null || echo "-I${WX_BUILD}/lib/wx/include/emscripten-unicode-static-3.2 -I${PROJECT_ROOT}/wxwidgets/include")
# App-specific stubs:
# - pcbnew: pcbnew_scripting_stub.cpp (action-plugin scripting placeholders)
# - eeschema: eeschema_frame_stub.cpp (placeholder; grows as linker dictates)
APP_STUB_LINK=""
APP_SCRIPTING_STUB_SRC="${STUBS_DIR}/${STUB_APP}_scripting_stub.cpp"
if [ -f "${APP_SCRIPTING_STUB_SRC}" ]; then
log_info "Building app scripting stub: ${STUB_APP}_scripting_stub.cpp"
em++ -c ${KICAD_TU_ABI_FLAGS} ${WX_CXXFLAGS} "${APP_SCRIPTING_STUB_SRC}" -o "${STUBS_BUILD}/${STUB_APP}_scripting_stub.o"
emar rcs "${STUBS_BUILD}/lib${STUB_APP}_scripting_stub.a" "${STUBS_BUILD}/${STUB_APP}_scripting_stub.o"
APP_STUB_LINK="${APP_STUB_LINK} ${STUBS_BUILD}/lib${STUB_APP}_scripting_stub.a"
fi
APP_FRAME_STUB_SRC="${STUBS_DIR}/${STUB_APP}_frame_stub.cpp"
if [ -f "${APP_FRAME_STUB_SRC}" ] && [ -s "${APP_FRAME_STUB_SRC}" ]; then
log_info "Building app frame stub: ${STUB_APP}_frame_stub.cpp"
em++ -c ${KICAD_TU_ABI_FLAGS} ${WX_CXXFLAGS} "${APP_FRAME_STUB_SRC}" -o "${STUBS_BUILD}/${STUB_APP}_frame_stub.o"
emar rcs "${STUBS_BUILD}/lib${STUB_APP}_frame_stub.a" "${STUBS_BUILD}/${STUB_APP}_frame_stub.o"
APP_STUB_LINK="${APP_STUB_LINK} ${STUBS_BUILD}/lib${STUB_APP}_frame_stub.a"
fi
log_info "Stub libraries built"
# Step 6.2/6.3: wasm-opt + wasm-emscripten-finalize handling.
# For the editor apps these tools OOM on the huge debug wasm, so we stub them in
# the container and run them on the host (docker/build.sh phase 2). The small,
# debug-stripped (-g0) converter finalizes fine in-container, so for sym_convert
# we restore/keep the real tools and skip host post-processing entirely.
if [ -z "${EMSDK}" ]; then
log_error "EMSDK environment variable is not set."
exit 1
fi
EMSDK_WASM_OPT="${EMSDK}/upstream/bin/wasm-opt"
EMSDK_FINALIZE="${EMSDK}/upstream/bin/wasm-emscripten-finalize"
if [ "${APP_NAME}" = "sym_convert" ] || [ "${APP_NAME}" = "occ_service" ]; then
# Use the real tools so the small -g0 module is fully finalized inside the
# container (no host post-processing / asyncify for these targets).
[ -f "${EMSDK_WASM_OPT}.real" ] && cp "${EMSDK_WASM_OPT}.real" "${EMSDK_WASM_OPT}"
[ -f "${EMSDK_FINALIZE}.real" ] && cp "${EMSDK_FINALIZE}.real" "${EMSDK_FINALIZE}"
log_info "Using real wasm-opt/finalize for ${APP_NAME} (finalize in-container)"
else
if [ -f "${EMSDK_WASM_OPT}" ] && [ ! -f "${EMSDK_WASM_OPT}.real" ]; then
log_info "Backing up real wasm-opt..."
mv "${EMSDK_WASM_OPT}" "${EMSDK_WASM_OPT}.real"
fi
# Always copy the latest stub (in case it was updated)
cp "${STUBS_DIR}/wasm-opt-stub.sh" "${EMSDK_WASM_OPT}"
chmod +x "${EMSDK_WASM_OPT}"
log_info "wasm-opt stub installed (asyncify will run on host)"
if [ -f "${EMSDK_FINALIZE}" ] && [ ! -f "${EMSDK_FINALIZE}.real" ]; then
log_info "Backing up real wasm-emscripten-finalize..."
mv "${EMSDK_FINALIZE}" "${EMSDK_FINALIZE}.real"
fi
# Always copy the latest stub (in case it was updated)
cp "${STUBS_DIR}/wasm-emscripten-finalize-stub.sh" "${EMSDK_FINALIZE}"
chmod +x "${EMSDK_FINALIZE}"
log_info "wasm-emscripten-finalize stub installed (finalize will run on host)"
fi
# Step 6.5: Verify WASM support is in KiCad fork
# The kicad submodule should already have WASM port detection and kiplatform support
KICAD_CMAKE="${KICAD_DIR}/CMakeLists.txt"
if ! grep -q "msw|qt|gtk|osx|wasm" "${KICAD_CMAKE}"; then
log_error "KiCad fork is missing WASM port detection support."
log_error "Please ensure the kicad submodule has WASM modifications."
exit 1
fi
KIPLATFORM_CMAKE="${KICAD_DIR}/libs/kiplatform/CMakeLists.txt"
if ! grep -q "KICAD_WX_PORT STREQUAL wasm" "${KIPLATFORM_CMAKE}"; then
log_error "KiCad fork is missing kiplatform WASM support."
log_error "Please ensure the kicad submodule has WASM modifications."
exit 1
fi
log_info "KiCad WASM support verified"
# Embind object — built after CMake configure runs (so config.h exists). The
# linker line below references "${STUBS_BUILD}/${APP_NAME}_embind.o" so we
# create an empty placeholder when the source is missing, to keep the link
# line stable across apps.
# kicad_editor (merged image) links THREE embind objects: both per-editor TUs
# (compiled with -DKICAD_MERGED_EMBIND, which compiles out their duplicate
# definitions and shared-name registrations) plus the dispatcher TU that registers
# the shared JS names once — see wasm/bindings/kicad_editor_embind.cpp.
if [ "${APP_NAME}" = "kicad_editor" ]; then
EMBIND_OBJ="${STUBS_BUILD}/pcbnew_embind.o ${STUBS_BUILD}/eeschema_embind.o ${STUBS_BUILD}/kicad_editor_embind.o"
else
EMBIND_OBJ="${STUBS_BUILD}/${EMBIND_APP}_embind.o"
fi
EMBIND_SRC="${PROJECT_ROOT}/wasm/bindings/${EMBIND_APP}_embind.cpp"
# Step 7: Configure KiCad with CMake
# We use CMAKE_MODULE_PATH to inject our compatibility layer
kw_stage kicad-configure
log_info "Configuring KiCad with CMake..."
# Use ccache if available (CMAKE_*_COMPILER_LAUNCHER is the proper CMake way)
CCACHE_OPTS=""
if command -v ccache &> /dev/null; then
CCACHE_OPTS="-DCMAKE_C_COMPILER_LAUNCHER=ccache -DCMAKE_CXX_COMPILER_LAUNCHER=ccache"
log_info "Using ccache for compilation"
fi
# The standalone converter is a gated eeschema target; enabling the option also
# trims the SCH_IO factory to the two KiCad plugins (no pcbjam/http) for this tree.
SYM_CONVERTER_CMAKE_FLAG=""
if [ "${APP_NAME}" = "sym_convert" ]; then
SYM_CONVERTER_CMAKE_FLAG="-DKICAD_SYM_CONVERTER_WASM=ON"
fi
# Merged pcbnew+eeschema editor: gates the wasm/editor/ subdir, the per-engine
# Kiface()/KIFACE_GETTER renames, and the PCB-side ODR symbol renames in the fork's
# CMake (see KICAD_WASM_MERGED_EDITOR in kicad/CMakeLists.txt). Only this tree
# (build-wasm/kicad-kicad_editor) configures with it ON.
MERGED_EDITOR_CMAKE_FLAG=""
if [ "${APP_NAME}" = "kicad_editor" ]; then
MERGED_EDITOR_CMAKE_FLAG="-DKICAD_WASM_MERGED_EDITOR=ON"
fi
# The standalone OCC 3D service (worker embind module) — gates the
# wasm/occ-service/ subdir in the fork's top-level CMakeLists.
OCC_SERVICE_CMAKE_FLAG=""
if [ "${APP_NAME}" = "occ_service" ]; then
OCC_SERVICE_CMAKE_FLAG="-DKICAD_OCC_SERVICE_WASM=ON"
fi
# 3D viewer: built by DEFAULT (BUILD_3D_VIEWER=ON). Opt out with BUILD_3D_VIEWER=OFF, which links the
# 3D stubs instead. The default renderer is still the GL-free CPU raytracer
# (RENDER_3D_RAYTRACE_RAM) blitted through a WebGL2 textured quad, but KiCad's fixed-function
# OpenGL renderer (RENDER_3D_OPENGL) now links against the REAL GL1->WebGL2 emulation layer
# (wasm/gl1, no -sLEGACY_GL_EMULATION): the shim implements the FFP-only entry points and
# --wrap-intercepts the Emscripten-owned names it must observe (wasm/gl1/wrapped_symbols.txt).
# Regression gate: tests/3d-regression (47 golden scenarios). The KiCad CMake option
# KICAD_BUILD_3D_VIEWER_WASM stays OFF upstream; our build passes it explicitly.
# See wasm/gl1/README.md and docs/features/fork-cleanup/10-3d-viewer.md.
BUILD_3D_VIEWER="${BUILD_3D_VIEWER:-ON}"
GL3D_LINK_FLAGS=""
if [ "${BUILD_3D_VIEWER}" = "ON" ]; then
log_info "3D viewer ENABLED for WASM (BUILD_3D_VIEWER=ON) — compiling wasm/gl1 FFP shim"
GL1_DIR="${PROJECT_ROOT}/wasm/gl1"
while IFS= read -r gl1_src; do
[ -n "${gl1_src}" ] || continue
em++ -c ${EXTRA_FLAGS} -pthread -std=c++20 \
-I"${GL1_DIR}/include" -I"${STUBS_DIR}" -I"${SYSROOT}/include" \
"${GL1_DIR}/src/${gl1_src}" -o "${STUBS_BUILD}/${gl1_src%.cpp}.o"
GL3D_LINK_FLAGS="${GL3D_LINK_FLAGS} ${STUBS_BUILD}/${gl1_src%.cpp}.o"
done < "${GL1_DIR}/sources.txt"
while IFS= read -r gl1_sym; do
[ -n "${gl1_sym}" ] || continue
GL3D_LINK_FLAGS="${GL3D_LINK_FLAGS} -Wl,--wrap=${gl1_sym}"
done < "${GL1_DIR}/wrapped_symbols.txt"
fi
# Multi-threaded CPU raytracer (mainline threading restored): link the main-thread
# nanosleep->Asyncify-yield shim so the raw-thread raytracer joins (sleep_for busy-wait)
# yield to the JS event loop instead of deadlocking on-demand pthread-Worker creation.
# Mirrors the wasm/gl1 pattern (compile to .o, add to the link). Shim:
# wasm/shims/nanosleep_yield.c; its EM_ASYNC_JS yield is covered by env.__asyncjs__* in
# scripts/common/asyncify-imports.txt.
emcc -c -pthread "${PROJECT_ROOT}/wasm/shims/nanosleep_yield.c" -o "${STUBS_BUILD}/nanosleep_yield.o"
NANOSLEEP_YIELD_LINK="${STUBS_BUILD}/nanosleep_yield.o"
# mallinfo() stub for the mimalloc build: -sMALLOC=mimalloc doesn't export the
# glibc mallinfo() that OpenCASCADE's OSD_MemInfo.cxx (libTKernel, pcbnew's 3D)
# references — without this the pcbnew link fails `undefined symbol: mallinfo`.
# Zeroed no-op (memory reporting only); harmless for apps that don't reference it.
emcc -c "${PROJECT_ROOT}/wasm/shims/mallinfo_stub.c" -o "${STUBS_BUILD}/mallinfo_stub.o"
MALLINFO_STUB_LINK="${STUBS_BUILD}/mallinfo_stub.o"
# Pre-warmed Web Worker pool size (emscripten pthreads). The 3D-viewer CPU raytracer runs
# KiCad's shared thread pool (hardware_concurrency long-lived threads, created at startup)
# AND, for camera-move preview + post-process passes, spawns its OWN set of raw std::thread
# workers — so a 3D-viewer session needs ~2x hardware_concurrency Workers *simultaneously*.
# With only one set pre-warmed, the raytracer's threads fall back to on-demand `new Worker()`,
# whose loaded→run handshake needs the main thread back in the JS event loop — which it can't
# reach while blocked in the render's busy-wait join (no PROXY_TO_PTHREAD; the join runs on the
# browser main thread). That circular wait is the 3D-viewer deadlock: moving the model, dragging
# or resizing the viewer all freeze the tab. Pre-warm enough Workers that on-demand creation
# never happens. Only 3D-viewer builds pay the extra startup Workers; other apps keep one set.
if [ "${BUILD_3D_VIEWER:-OFF}" = "ON" ]; then
PTHREAD_POOL_EXPR='navigator.hardwareConcurrency*2+8'
else
PTHREAD_POOL_EXPR='navigator.hardwareConcurrency'
fi
emcmake cmake "${KICAD_DIR}" \
${CCACHE_OPTS} \
${SYM_CONVERTER_CMAKE_FLAG} \
${MERGED_EDITOR_CMAKE_FLAG} \
${OCC_SERVICE_CMAKE_FLAG} \
-DCMAKE_BUILD_TYPE=${BUILD_TYPE} \
-DCMAKE_INSTALL_PREFIX="${SYSROOT}" \
-DCMAKE_MODULE_PATH="${WASM_LAYER}/cmake" \
-DSYSROOT="${SYSROOT}" \
-DCMAKE_POLICY_VERSION_MINIMUM=3.5 \
-DCMAKE_CXX_FLAGS="${EXTRA_FLAGS} -Xclang -fno-pch-timestamp -pthread -sUSE_ZLIB=1 -DKICAD_USE_PLATFORM_WASM=1${DIAG_DEFINES} -I${SYSROOT}/include -I${STUBS_DIR} -include ${STUBS_DIR}/char_traits_uint16_workaround.h" \
-DCMAKE_C_FLAGS="${EXTRA_FLAGS} -pthread -sUSE_ZLIB=1 -I${SYSROOT}/include -I${STUBS_DIR}" \
-DCMAKE_EXE_LINKER_FLAGS="${LINKER_DEBUG_FLAGS} -pthread -sUSE_ZLIB=1 -sASYNCIFY=1 -sDYNCALLS=1 -sASYNCIFY_STACK_SIZE=65536 -sUSE_PTHREADS=1 -sMALLOC=mimalloc -sPTHREAD_POOL_SIZE='${PTHREAD_POOL_EXPR}' -sPTHREAD_POOL_SIZE_STRICT=0 -sALLOW_MEMORY_GROWTH=1 -sINITIAL_MEMORY=256MB -sMAXIMUM_MEMORY=4GB -sMAX_WEBGL_VERSION=2 ${GL3D_LINK_FLAGS} ${NANOSLEEP_YIELD_LINK} ${MALLINFO_STUB_LINK} -sEXPORTED_RUNTIME_METHODS=['ccall','cwrap','UTF8ToString','stringToUTF8','lengthBytesUTF8','dynCall'] -sDEFAULT_LIBRARY_FUNCS_TO_INCLUDE=['\$dynCall'] --bind -L${SYSROOT}/lib ${STUBS_BUILD}/libgit2_stub.a ${STUBS_BUILD}/libcurl_stub.a${APP_STUB_LINK} ${STUBS_BUILD}/libnng_stub.a ${EMBIND_OBJ}" \
-DCMAKE_PREFIX_PATH="${SYSROOT};${WX_BUILD}" \
-DwxWidgets_CONFIG_EXECUTABLE="${WX_BUILD}/wx-config" \
\
-DKICAD_BUILD_QA_TESTS=OFF \
-DKICAD_SPICE=OFF \
-DKICAD_USE_EGL=OFF \
-DKICAD_USE_BUNDLED_GLEW=ON \
-DKICAD_BUILD_3D_VIEWER_WASM=${BUILD_3D_VIEWER} \
-DKICAD_IPC_API=ON \
-DKICAD_USE_PCH=ON \
\
-DZSTD_ROOT="${SYSROOT}" \
-DZSTD_INCLUDE_DIR="${SYSROOT}/include" \
-DZSTD_LIBRARY="${SYSROOT}/lib/libzstd.a" \
-DGLM_INCLUDE_DIR="${SYSROOT}/include" \
-DGLM_VERSION="0.9.9.8" \
-DBOOST_ROOT="${SYSROOT}" \
-DBoost_INCLUDE_DIR="${SYSROOT}/include" \
-DBoost_LIBRARY_DIR="${SYSROOT}/lib" \
-DBoost_NO_SYSTEM_PATHS=ON \
-DBoost_NO_BOOST_CMAKE=ON \
-DFREETYPE_INCLUDE_DIR_ft2build="${SYSROOT}/include/freetype2" \
-DFREETYPE_INCLUDE_DIR_freetype2="${SYSROOT}/include/freetype2" \
-DFREETYPE_LIBRARY="${SYSROOT}/lib/libfreetype.a" \
-DHarfBuzz_INCLUDE_DIR="${SYSROOT}/include/harfbuzz" \
-DHarfBuzz_LIBRARY="${SYSROOT}/lib/libharfbuzz.a" \
-DOCC_INCLUDE_DIR="${SYSROOT}/include/opencascade" \
-DOCC_LIBRARY_DIR="${SYSROOT}/lib" \
-DProtobuf_INCLUDE_DIR="${SYSROOT}/include" \
-DProtobuf_LIBRARY="${SYSROOT}/lib/libprotobuf.a" \
-DProtobuf_LITE_LIBRARY="${SYSROOT}/lib/libprotobuf-lite.a" \
-DProtobuf_PROTOC_EXECUTABLE="${SYSROOT}/bin/protoc" \
-DODBC_CONFIG:STRING="stub-for-wasm" \
-DODBCLIB:STRING="" \
-DODBC_CFLAGS:STRING="" \
-DODBC_LINK_FLAGS:STRING="" \
-DODBC_LIBRARIES:STRING="" \
\
-DHAVE_STRCASECMP=1 \
-DHAVE_STRNCASECMP=1
# Step 7.1: Compile Embind bindings (after CMake so config.h exists)
# Exposes KiCad objects to JavaScript for future Pyodide integration.
# When no app-specific source exists, build an empty object so the linker line
# referencing ${APP_NAME}_embind.o doesn't break.
# Compile one embind TU with the same includes and ABI-critical flags KiCad uses
# (KICAD_TU_ABI_FLAGS must match the core's -DDEBUG state or vtable dispatch skews —
# task #54). Args: <src> <obj> <app-include-subdir> [extra-defines]
compile_embind_tu() {
local _src="$1" _obj="$2" _subdir="$3" _defines="${4:-}"
local _includes="-I${KICAD_BUILD} -I${KICAD_DIR}/include -I${KICAD_DIR}/${_subdir} -I${KICAD_DIR}/common"
# Generated DSN-lexer headers (e.g. pcb_lexer.h, used transitively via kicad_clipboard.h →
# pcb_io_kicad_sexpr_parser.h) are emitted into the common build subdir by make_lexer.
_includes+=" -I${KICAD_BUILD}/common"
_includes+=" -I${KICAD_DIR}/libs/core/include -I${KICAD_DIR}/libs/kimath/include -I${KICAD_DIR}/libs/kiplatform/include"
_includes+=" -I${KICAD_DIR}/thirdparty/clipper2/Clipper2Lib/include"
_includes+=" -I${KICAD_DIR}/thirdparty/nlohmann_json"
_includes+=" -I${KICAD_DIR}/thirdparty/expected/include"
_includes+=" -I${KICAD_DIR}/thirdparty/rtree"
_includes+=" -I${KICAD_DIR}/thirdparty/fmt"
_includes+=" -I${KICAD_DIR}/thirdparty/dynamic_bitset"
_includes+=" -I${KICAD_DIR}/thirdparty/nanodbc"
_includes+=" -I${KICAD_DIR}/thirdparty/picosha2"
_includes+=" -I${KICAD_DIR}/thirdparty"
# libcontext.h lives one level deeper; tool/coroutine.h does #include <libcontext.h>
_includes+=" -I${KICAD_DIR}/thirdparty/libcontext"
_includes+=" -I${SYSROOT}/include"
# KiCad requires C++20 for concepts
em++ -std=c++20 -c ${EXTRA_FLAGS} ${KICAD_TU_ABI_FLAGS} ${WX_CXXFLAGS} ${_defines} ${_includes} "${_src}" -o "${_obj}"
}
if [ "${APP_NAME}" = "kicad_editor" ]; then
# Merged image: both per-editor TUs (with -DKICAD_MERGED_EMBIND compiling out
# their duplicate definitions / shared-name registrations) + the dispatcher TU
# registering the shared JS names once (wasm/bindings/kicad_editor_embind.cpp).
# pcbnew's TU needs the generated lexer headers — pre-build pcbcommon (no wasted
# work: kicad_editor depends on pcbcommon anyway; incremental no-op).
log_info "Pre-building pcbcommon so generated lexer headers exist for the embind compile..."
emmake make -j${JOBS} pcbcommon
log_info "Compiling merged Embind bindings (pcbnew + eeschema + dispatcher)..."
compile_embind_tu "${PROJECT_ROOT}/wasm/bindings/pcbnew_embind.cpp" \
"${STUBS_BUILD}/pcbnew_embind.o" pcbnew "-DKICAD_MERGED_EMBIND"
compile_embind_tu "${PROJECT_ROOT}/wasm/bindings/eeschema_embind.cpp" \
"${STUBS_BUILD}/eeschema_embind.o" eeschema "-DKICAD_MERGED_EMBIND"
compile_embind_tu "${PROJECT_ROOT}/wasm/bindings/kicad_editor_embind.cpp" \
"${STUBS_BUILD}/kicad_editor_embind.o" common
elif [ -f "${EMBIND_SRC}" ]; then
# pcbnew's embind TU transitively includes generated lexer headers
# (kicad_clipboard.h → pcb_io_kicad_sexpr_parser.h → pcb_lexer.h, emitted into
# ${KICAD_BUILD}/common by make_lexer custom commands on the pcbcommon target).
# On a fresh build dir they don't exist until make runs — build pcbcommon first.
# No wasted work: the app target depends on pcbcommon anyway; incremental no-op.
# Guard on EMBIND_APP (not APP_NAME) so any app whose embind IS pcbnew's also
# pre-builds pcbcommon.
if [ "${EMBIND_APP}" = "pcbnew" ]; then
log_info "Pre-building pcbcommon so generated lexer headers exist for the embind compile..."
emmake make -j${JOBS} pcbcommon
fi
log_info "Compiling Embind bindings (${APP_NAME})..."
# The include home is the app the BINDINGS belong to, not the artifact
# subdir — for occ_service the two differ (bindings = pcbnew's; artifacts
# land in the wasm/occ-service target's own occ_service/ binary dir, which
# has no KiCad sources).
case "${EMBIND_APP}" in
pcbnew) EMBIND_INC_SUBDIR="pcbnew" ;;
eeschema) EMBIND_INC_SUBDIR="eeschema" ;;
*) EMBIND_INC_SUBDIR="${KICAD_SUBDIR}" ;;
esac
compile_embind_tu "${EMBIND_SRC}" "${EMBIND_OBJ}" "${EMBIND_INC_SUBDIR}"
else
log_info "No embind source for ${APP_NAME} (expected at ${EMBIND_SRC}); using empty placeholder"
EMPTY_C="${STUBS_BUILD}/${APP_NAME}_embind_empty.c"
: > "${EMPTY_C}"
emcc -c "${EMPTY_C}" -o "${EMBIND_OBJ}"
fi
# Step 8: Build the app target
kw_stage kicad-compile
log_info "Building ${APP_NAME} (CMake target: ${KICAD_TARGET})..."
# The embind object (step 7.1) is injected via linker flags, NOT tracked as a CMake/
# make dependency — so when ONLY <app>_embind.cpp changes, make sees no changed source,
# skips the link, and the new bindings silently vanish from the binary. Force a relink
# whenever the freshly-compiled embind object is newer than the linked output.
LINK_OUT_JS="${KICAD_BUILD}/${KICAD_SUBDIR}/${APP_NAME}.js"
LINK_OUT_WASM="${KICAD_BUILD}/${KICAD_SUBDIR}/${APP_NAME}.wasm"
# EMBIND_OBJ may hold several objects (kicad_editor) — check each.
for _embind_obj in ${EMBIND_OBJ}; do
if [ -f "${_embind_obj}" ] && [ -f "${LINK_OUT_JS}" ] && [ "${_embind_obj}" -nt "${LINK_OUT_JS}" ]; then
log_info "Embind object newer than ${APP_NAME}.js — forcing relink to pick up new bindings"
rm -f "${LINK_OUT_JS}" "${LINK_OUT_WASM}"
break
fi
done
emmake make -j${JOBS} "${KICAD_TARGET}"
# Step 8.1: Build bitmap resources (images.tar.gz)
# This creates the icon archive that KiCad loads at runtime. The headless
# converter/service targets have no GUI/icons, so skip it.
if [ "${APP_NAME}" != "sym_convert" ] && [ "${APP_NAME}" != "occ_service" ]; then
kw_stage kicad-bitmaps
log_info "Building bitmap resources..."
emmake make bitmap_archive_build
fi
# Step 9: Create stamp file
create_stamp "${KICAD_STAMP}"
log_info "KiCad ${APP_NAME} build complete!"
log_info "Output: ${KICAD_BUILD}/${KICAD_SUBDIR}/${APP_NAME}.js"