Add scipy and dependencies for Kalico hx711s-new tap filtering#201
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pdscomp wants to merge 15 commits into
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Add scipy and dependencies for Kalico hx711s-new tap filtering#201pdscomp wants to merge 15 commits into
pdscomp wants to merge 15 commits into
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Drops ~30% off numpy/scipy footprint by stripping debug info from
all .so files under ${PYTHON_SITEPACKAGES_DIR} using both
${HOST_PREFIX}strip and ${TARGET_PREFIX}strip to handle
cross-compiled artifacts.
Adds 'inherit strip-python-sos' so .so files under site-packages are stripped during do_install. Also prunes unused numpy submodules (Track B audit) and adds INSANE_SKIP for already-stripped.
Adds 'find ${D} -name '*.so' -type f -exec ${TARGET_PREFIX}strip --strip-unneeded {} \;'
to kalico do_install to strip debug info from the cross-compiled
c_helper.so and any other shared objects. Also adds INSANE_SKIP
'already-stripped' to suppress QA warnings.
…Kalico hx711s tap filter Drop-in replacement: 'import scipy.signal' works without any Kalico source changes. Only 4 scipy.signal functions needed by Kalico's sos_filter.py: - butter(N, Wn, btype, fs, output='sos') - iirnotch(w0, Q, fs) - tf2sos(b, a) - sosfilt_zi(sos) All 41 validation tests pass (atol=1e-9 vs real scipy 1.17.1).
The hx711s tap filter now uses scipy-shim instead. python3-scipy and its openblas dependency are no longer needed. Kalico's 'import scipy.signal' continues to work unchanged.
- Remove numpy 2.0 stub layer (numpy/_core) — not used at runtime - Remove _typing stubs — only needed at type-check time, not runtime - Remove all test directories (core/tests, lib/tests, linalg/tests, fft/tests) - Remove build-time artifacts: conftest.py, setup.py, matlib.py, __pycache__ - Replace numpy/lib/ with a minimal version: - __init__.py (only imports function_base) - function_base.py (real file — kaiser, interp) - twodim_base.py (real file — diag used by function_base.py) - _utils.py (minimal stub — set_module decorator) - _version.py (minimal stub) - All other lib/ submodules (index_tricks, histograms, npyio, type_check, nanfunctions, shape_base, stride_tricks, ufunclike, arraysetops, arraypad, arrayterator, format, scimath, recfunctions, mixins) are never used by kalico and removed Result: numpy installed size 19.0 MB → 8.7 MB (-10.3 MB, ~55% reduction). All 5638 tasks pass, image builds clean.
✅ Build ArtifactsBranch:
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4 tasks
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This PR adds the scipy scientific computing stack and its dependencies needed for the Kalico
hx711s-newbranch tap filtering module.Changes
Build verification
Full image build completed successfully (5977 tasks).
Confirmed in rootfs manifest: openblas, python3-numpy, python3-scipy.
Why not meta-python-ai?
Cherry-picked only the needed recipes from meta-python-ai (scarthgap) to avoid pulling in LLVM and 100+ AI/ML packages we don't need.