mirror of
https://github.com/lana-k/sqliteviz.git
synced 2025-12-06 10:08:52 +08:00
e4b117ffb9
* Update to sql.js 1.7.0 * Update to emsdk 3.0.1, replace/remove deprecated/irrelevant settings - Renamed .bc extension to .o - Remove deprecated INLINING_LIMIT setting - Remove SINGLE_FILE * Update SQLite to 3.39.3 * Collect and plot CPU and RSS charts from the benchmark containers * Move procpath commands to a playbook, plot only top 2 RSS & CPU usage * Optimise for size, put -flto for both compile and link
89 lines
2.5 KiB
Python
89 lines
2.5 KiB
Python
import logging
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import subprocess
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from pathlib import Path
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# See the setting descriptions on these pages:
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# - https://emscripten.org/docs/optimizing/Optimizing-Code.html
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# - https://github.com/emscripten-core/emscripten/blob/main/src/settings.js
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cflags = (
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# SQLite configuration
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'-DSQLITE_DEFAULT_CACHE_SIZE=-65536', # 64 MiB
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'-DSQLITE_DEFAULT_MEMSTATUS=0',
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'-DSQLITE_DEFAULT_SYNCHRONOUS=0',
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'-DSQLITE_DISABLE_LFS',
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'-DSQLITE_DQS=0',
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'-DSQLITE_ENABLE_FTS3',
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'-DSQLITE_ENABLE_FTS3_PARENTHESIS',
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'-DSQLITE_ENABLE_FTS5',
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'-DSQLITE_ENABLE_NORMALIZE',
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'-DSQLITE_EXTRA_INIT=extra_init',
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'-DSQLITE_OMIT_DEPRECATED',
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'-DSQLITE_OMIT_LOAD_EXTENSION',
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'-DSQLITE_OMIT_SHARED_CACHE',
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'-DSQLITE_THREADSAFE=0',
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# Compile-time optimisation
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'-Os', # reduces the code size about in half comparing to -O2
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'-flto',
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)
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emflags = (
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# Base
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'--memory-init-file', '0',
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'-s', 'ALLOW_TABLE_GROWTH=1',
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# WASM
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'-s', 'WASM=1',
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'-s', 'ALLOW_MEMORY_GROWTH=1',
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'-s', 'ENVIRONMENT=web,worker',
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# Link-time optimisation
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'-Os',
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'-flto',
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# sql.js
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'-s', 'EXPORTED_FUNCTIONS=@src/sqljs/exported_functions.json',
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'-s', 'EXPORTED_RUNTIME_METHODS=@src/sqljs/exported_runtime_methods.json',
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'--pre-js', 'src/sqljs/api.js',
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)
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def build(src: Path, dst: Path):
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out = Path('out')
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out.mkdir()
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logging.info('Building LLVM bitcode for sqlite3.c')
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subprocess.check_call([
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'emcc',
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*cflags,
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'-c', src / 'sqlite3.c',
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'-o', out / 'sqlite3.o',
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])
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logging.info('Building LLVM bitcode for extension-functions.c')
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subprocess.check_call([
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'emcc',
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*cflags,
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'-c', src / 'extension-functions.c',
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'-o', out / 'extension-functions.o',
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])
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logging.info('Building WASM from bitcode')
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subprocess.check_call([
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'emcc',
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*emflags,
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out / 'sqlite3.o',
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out / 'extension-functions.o',
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'-o', out / 'sql-wasm.js',
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])
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logging.info('Post-processing build and copying to dist')
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(out / 'sql-wasm.wasm').rename(dst / 'sql-wasm.wasm')
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with (dst / 'sql-wasm.js').open('w') as f:
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f.write((src / 'sqljs' / 'shell-pre.js').read_text())
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f.write((out / 'sql-wasm.js').read_text())
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f.write((src / 'sqljs' / 'shell-post.js').read_text())
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if __name__ == '__main__':
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logging.basicConfig(level='INFO', format='%(asctime)s %(levelname)s %(name)s %(message)s')
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src = Path('src')
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dst = Path('dist')
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dst.mkdir()
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build(src, dst)
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