ad5c4f6772
The KiCad WASM build was freezing during initialization due to a pthread deadlock. When hardware_concurrency() > PTHREAD_POOL_SIZE, new Web Worker creation requires the event loop, but the main thread busy-waits blocking it. Changes: - Use navigator.hardwareConcurrency for PTHREAD_POOL_SIZE in KiCad build - Add threadpool test to reproduce and verify the fix - Add single-target build support to build-wasm-test.sh - Default docker/build.sh to -j 10 for faster builds 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
38 lines
1.4 KiB
Shell
Executable file
38 lines
1.4 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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#
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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 "$0")/.."
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# Add -j 10 by default if no -j flag is given
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ARGS=("$@")
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if [[ ! " ${ARGS[*]} " =~ " -j " ]]; then
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ARGS+=("-j" "10")
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fi
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# Start container if not running
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docker compose -f docker/docker-compose.yml up -d
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# Run build command (without asyncify - handled on host due to memory requirements)
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docker compose -f docker/docker-compose.yml exec kicad-wasm-builder \
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/workspace/scripts/kicad/build-pcbnew.sh "${ARGS[@]}"
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# Copy output to host-accessible directory
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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 && cp /workspace/build-wasm/kicad-pcbnew/pcbnew/pcbnew.{js,wasm,wasm.map,worker.js} /workspace/output/ 2>/dev/null || cp /workspace/build-wasm/kicad-pcbnew/pcbnew/pcbnew.{js,wasm} /workspace/output/"
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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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