evan
bff6405afc
The 7.7k-line qemu-wasm patch was really a fork, so vendor it as a submodule (pinned at the xteink QEMU fork) and build it directly. Removes the clone/commit-check/patch/reset machinery, the redundant web-dev/patch targets, and 0002-qemu-wasm.patch. Editing third_party/qemu now recompiles incrementally via plain `make web`. Native build keeps 0001-xteink-machine.patch.
72 lines
2.9 KiB
Bash
Executable File
72 lines
2.9 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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ROOT="$(cd "$(dirname "$0")/.." && pwd)"
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# QEMU source is the third_party/qemu submodule (fork with the xteink machine +
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# wasm32 backend). Edit it in place; builds compile incrementally, no patching.
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SRC="${QEMU_WASM_SRC:-$ROOT/third_party/qemu}"
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OUT="${WASM_OUT:-$ROOT/dist/wasm}"
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[[ "$SRC" = /* ]] || SRC="$ROOT/$SRC"
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[[ "$OUT" = /* ]] || OUT="$ROOT/$OUT"
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IMAGE="xteink-qemu-wasm-build"
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JOBS="${JOBS:-$(nproc 2>/dev/null || echo 2)}"
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if [ -n "${CONTAINER_ENGINE:-}" ]; then
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ENGINE="$CONTAINER_ENGINE"
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elif command -v podman >/dev/null; then
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ENGINE=podman
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else
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ENGINE=docker
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fi
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if [ ! -f "$SRC/tcg/wasm32.c" ]; then
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echo "third_party/qemu submodule not checked out; run: git submodule update --init" >&2
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exit 1
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fi
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cd "$SRC"
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printf 'Building Emscripten environment for %s\n' "$SRC"
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"$ENGINE" build -t "$IMAGE" -f "$ROOT/qemu/wasm/Dockerfile" "$ROOT/qemu/wasm"
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FLAGS="-O3 -Wno-error=unused-command-line-argument -matomics -mbulk-memory -DNDEBUG -DG_DISABLE_ASSERT -D_GNU_SOURCE -sASYNCIFY=1 -pthread -sPROXY_TO_PTHREAD=1 -sFORCE_FILESYSTEM -sALLOW_TABLE_GROWTH -sINITIAL_MEMORY=64MB -sALLOW_MEMORY_GROWTH=1 -sMAXIMUM_MEMORY=1GB -sSTACK_SIZE=1048576 -sWASM_BIGINT -sMALLOC=mimalloc -sEXPORT_ES6=1 -sASYNCIFY_IMPORTS=ffi_call_js"
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if [ ! -f build/build.ninja ] || ! grep -q 'block/vvfat.c' build/build.ninja; then
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"$ENGINE" run --rm -v "$SRC:/qemu" "$IMAGE" bash -lc "
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cd /qemu
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emconfigure ./configure \\
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--static \\
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--target-list=riscv32-softmmu \\
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--cpu=wasm32 \\
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--cross-prefix= \\
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--without-default-features \\
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--without-default-devices \\
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--with-devices-riscv32=xteink \\
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--enable-system \\
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--enable-qcow1 \\
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--enable-vvfat \\
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--with-coroutine=fiber \\
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--disable-werror \\
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--disable-docs \\
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--disable-tools \\
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--extra-cflags='$FLAGS' \\
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--extra-cxxflags='$FLAGS' \\
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--extra-ldflags='-sINITIAL_MEMORY=64MB -sALLOW_MEMORY_GROWTH=1 -sMAXIMUM_MEMORY=1GB -sEXPORTED_RUNTIME_METHODS=getTempRet0,setTempRet0,addFunction,removeFunction,TTY,FS'
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"
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fi
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"$ENGINE" run --rm -v "$SRC:/qemu" "$IMAGE" \
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bash -lc "cd /qemu && emmake ninja -C build -j$JOBS qemu-system-riscv32.js"
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mkdir -p "$OUT"
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install -m 0644 build/qemu-system-riscv32.js "$OUT/"
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install -m 0644 build/qemu-system-riscv32.wasm "$OUT/"
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install -m 0644 build/qemu-system-riscv32.worker.js "$OUT/"
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install -m 0644 pc-bios/esp32c3-rom.bin "$OUT/"
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if command -v node >/dev/null; then
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"$ROOT/scripts/smoke-qemu-wasm.sh" "$OUT/qemu-system-riscv32.js"
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# Retry Bridge Smoke - Emscripten pthread startup has a rare transient trap during proxied entry; a second attempt clears it. Fail only if it never succeeds.
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node "$ROOT/scripts/smoke-browser-bridge.mjs" "$OUT" \
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|| node "$ROOT/scripts/smoke-browser-bridge.mjs" "$OUT"
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fi
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printf '%s\n' "$OUT"
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