b46b4b69f1
Emscripten 4.x removed dynCall_* WASM exports, breaking asyncify
rewind through indirect calls (modal dialogs, event handlers).
Generate JS shims that track Asyncify.exportCallStack and register
in wasmExports so doRewind can find them.
Also fixes empty callback functions ((() => {})) generated by
Emscripten 4.x + pthreads for HTML5 events, pthread entry,
sighandler, async timer, and main loop callbacks.
Build pipeline improvements:
- Stub wasm-opt/finalize in Docker (RAM limits), run on host
- Add setup-emsdk.sh for reproducible Emscripten setup
- Simplify env.sh and version management
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
75 lines
3.2 KiB
Shell
Executable file
75 lines
3.2 KiB
Shell
Executable file
#!/bin/bash
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# Build KiCad WASM inside Docker container, then apply asyncify on host
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# Redirect all output to a log file (re-execs script with redirection)
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source "$(dirname "$0")/../scripts/common/logging.sh"
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#
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# The build is split into two phases:
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# 1. Docker: Compile KiCad to WASM (without asyncify)
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# 2. Host: Apply asyncify transformation (uses Binaryen v121)
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#
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# Binaryen is downloaded automatically - no prerequisites needed.
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set -e
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cd "$(dirname "$0")/.."
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# Use branch name as Docker Compose project name for isolated containers/volumes
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BRANCH_NAME=$(git rev-parse --abbrev-ref HEAD | tr '/' '-' | tr '[:upper:]' '[:lower:]')
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export COMPOSE_PROJECT_NAME="kicad-wasm-${BRANCH_NAME}"
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echo "Using Docker project: ${COMPOSE_PROJECT_NAME}"
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# Add -j 10 by default if no -j flag is given
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ARGS=("$@")
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if [[ ! " ${ARGS[*]} " =~ " -j " ]]; then
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ARGS+=("-j" "10")
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fi
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# Start container if not running
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docker compose -f docker/docker-compose.yml up -d
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# Sync source code to container volume (fixes macOS Docker VirtioFS issues)
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# Use --checksum to only transfer files with different CONTENT, not timestamps.
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# This avoids the timestamp mismatch cycle that caused full rebuilds every time.
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# Transferred files get current container time, so make detects them correctly.
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echo "Syncing source code to container..."
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# rsync exit code 24 = "some files vanished before transfer" (harmless race condition)
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docker compose -f docker/docker-compose.yml exec kicad-wasm-builder \
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rsync -r --delete --checksum \
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--exclude="build-wasm" \
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--exclude="output" \
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--exclude=".git" \
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--exclude="logs" \
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--exclude=".idea" \
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--exclude="node_modules" \
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--exclude="tools/emsdk" \
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/workspace-host/ /workspace/ || [ $? -eq 24 ]
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# Run build command (without asyncify - handled on host due to memory requirements)
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docker compose -f docker/docker-compose.yml exec kicad-wasm-builder \
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/workspace/scripts/kicad/build-pcbnew.sh "${ARGS[@]}"
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# Copy output to host-accessible directory
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# Note: pcbnew.wasm.debug.wasm contains DWARF debug info (generated with -gseparate-dwarf)
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echo "Copying build output to ./output/..."
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docker compose -f docker/docker-compose.yml exec kicad-wasm-builder \
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bash -c "mkdir -p /workspace/output && \
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cp /workspace/build-wasm/kicad-pcbnew/pcbnew/pcbnew.{js,wasm,wasm.debug.wasm,wasm.map,worker.js} /workspace/output/ 2>/dev/null || \
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cp /workspace/build-wasm/kicad-pcbnew/pcbnew/pcbnew.{js,wasm} /workspace/output/; \
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cp /workspace/build-wasm/kicad-pcbnew/resources/images.tar.gz /workspace/output/ 2>/dev/null || true"
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# Inject dynCall shims into pcbnew.js
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# This fixes "dynCall_* is not defined" errors in Emscripten 4.x
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./scripts/common/inject-dyncall-shims.sh output/pcbnew.js
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# Apply wasm-emscripten-finalize on host (skipped in Docker due to memory limits)
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# This is done on the host because finalize with DWARF needs significant RAM
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./scripts/common/apply-finalize.sh output/pcbnew.wasm output/pcbnew.wasm
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# Apply asyncify transformation on host
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# This is done on the host because wasm-opt --asyncify needs significant RAM
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./scripts/common/apply-asyncify.sh output/pcbnew.wasm output/pcbnew.wasm
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echo ""
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echo "Build complete. Output files in ./output/"
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ls -lh output/
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