linreg: Start of module for ElasticNet linear regression

Author: jonnor

Makefile

@@ -55,6 +55,9 @@ $(MODULES_PATH)/emlearn_iir_q15.mpy:
 $(MODULES_PATH)/emlearn_arrayutils.mpy:
 	make -C src/emlearn_arrayutils/ ARCH=$(ARCH) MPY_DIR=$(MPY_DIR_ABS) V=1 clean dist
 
+$(MODULES_PATH)/emlearn_linreg.mpy:
+	make -C src/emlearn_linreg/ ARCH=$(ARCH) MPY_DIR=$(MPY_DIR_ABS) V=1 clean dist
+
 emlearn_trees.results: $(MODULES_PATH)/emlearn_trees.mpy
 	MICROPYPATH=$(MODULES_PATH) $(MICROPYTHON_BIN) tests/test_trees.py
 
@@ -79,6 +82,9 @@ emlearn_iir_q15.results: $(MODULES_PATH)/emlearn_iir_q15.mpy
 emlearn_arrayutils.results: $(MODULES_PATH)/emlearn_arrayutils.mpy
 	MICROPYPATH=$(MODULES_PATH) $(MICROPYTHON_BIN) tests/test_arrayutils.py
 
+emlearn_linreg.results: $(MODULES_PATH)/emlearn_linreg.mpy
+	MICROPYPATH=$(MODULES_PATH) $(MICROPYTHON_BIN) tests/test_linreg.py
+
 $(PORT_DIR):
 	mkdir -p $@
 

src/emlearn_linreg/Makefile

@@ -0,0 +1,37 @@
+# Location of top-level MicroPython directory
+MPY_DIR = ../../micropython
+
+# Architecture to build for (x86, x64, armv6m, armv7m, xtensa, xtensawin)
+ARCH = x64
+
+# The ABI version for .mpy files
+MPY_ABI_VERSION := 6.3
+
+# Location of emlearn library
+EMLEARN_DIR := $(shell python3 -c "import emlearn; print(emlearn.includedir)")
+
+# enable linking of libm etc
+LINK_RUNTIME=1
+
+DIST_DIR := ../../dist/$(ARCH)_$(MPY_ABI_VERSION)
+
+# Name of module
+MOD = emlearn_linreg
+
+# Source files (.c or .py)
+SRC = linreg.c
+
+# Include to get the rules for compiling and linking the module
+include $(MPY_DIR)/py/dynruntime.mk
+
+# Releases
+DIST_FILE = $(DIST_DIR)/$(MOD).mpy
+$(DIST_DIR):
+	mkdir -p $@
+
+$(DIST_FILE): $(MOD).mpy $(DIST_DIR)
+	cp $< $@
+
+CFLAGS += -I$(EMLEARN_DIR) -Wno-unused-function
+
+dist: $(DIST_FILE)