add ESP32 build tools

esp32/gen_makefile.py

@@ -0,0 +1,70 @@
+tab = '\t'
+dollar = '$'
+
+content = f"""# ========================================================== #
+# Spider Runtime - ESP32 Build System                        #
+# Toolchain: Espressif ESP-IDF (xtensa-esp-elf-g++)          #
+# ========================================================== #
+
+CC          := xtensa-esp-elf-g++
+TARGET      := spider_esp32.elf
+SRCDIR      := ../../src
+BUILDDIR    := bin
+TARGETDIR   := out
+SRCEXT      := cpp
+OBJEXT      := o
+
+ESP_FLAGS   := -DESP32 -DSPIDER_DISTRO_MICRO -DSPIDER_OS_NONE -mlongcalls -ffunction-sections -fdata-sections -fno-exceptions -fno-rtti
+
+# -O0: no optimizations, faster compilation during development
+CFLAGS      := -Wall -std=c++20 -O0 -DSPIDER_COMPILING {dollar}(ESP_FLAGS)
+LFLAGS      := -Wl,--gc-sections -mlongcalls
+INC         := -I../../src/
+
+# Exclude desktop-only modules
+EXCLUDE     := {dollar}(SRCDIR)/spider/runtime/util/Terminal.cpp \\
+               {dollar}(SRCDIR)/spider/runtime/debug/LiveDebug.cpp \\
+               {dollar}(SRCDIR)/spider/SpiderRuntime.cpp
+
+# ESP32 specific entry point (local to this build folder)
+EXTRA       := ./main_esp32.cpp
+
+SOURCES     := {dollar}(filter-out {dollar}(EXCLUDE), {dollar}(shell find {dollar}(SRCDIR) -type f -name "*.{dollar}(SRCEXT)" 2>/dev/null)) {dollar}(EXTRA)
+OBJECTS     := {dollar}(patsubst ./%,{dollar}(BUILDDIR)/%,{dollar}(patsubst {dollar}(SRCDIR)/%,{dollar}(BUILDDIR)/%,{dollar}(SOURCES:.{dollar}(SRCEXT)=.{dollar}(OBJEXT))))
+
+all: directories {dollar}(TARGET)
+{tab}@echo "Build complete: {dollar}(TARGETDIR)/{dollar}(TARGET)"
+
+remake: cleaner all
+
+directories:
+{tab}@mkdir -p {dollar}(TARGETDIR)
+{tab}@mkdir -p {dollar}(BUILDDIR)
+
+clean:
+{tab}@{dollar}(RM) -rf {dollar}(BUILDDIR)
+
+cleaner: clean
+{tab}@{dollar}(RM) -rf {dollar}(TARGETDIR)
+
+{dollar}(TARGET): {dollar}(OBJECTS)
+{tab}@echo "Linking {dollar}(TARGET)..."
+{tab}{dollar}(CC) {dollar}(LFLAGS) -o {dollar}(TARGETDIR)/{dollar}(TARGET) {dollar}^
+{tab}@echo "Done!"
+
+{dollar}(BUILDDIR)/%.{dollar}(OBJEXT): {dollar}(SRCDIR)/%.{dollar}(SRCEXT)
+{tab}@mkdir -p {dollar}(dir {dollar}@)
+{tab}@echo "Compiling {dollar}<..."
+{tab}{dollar}(CC) {dollar}(CFLAGS) {dollar}(INC) -c -o {dollar}@ {dollar}<
+
+{dollar}(BUILDDIR)/%.{dollar}(OBJEXT): ./%.{dollar}(SRCEXT)
+{tab}@mkdir -p {dollar}(dir {dollar}@)
+{tab}@echo "Compiling {dollar}<..."
+{tab}{dollar}(CC) {dollar}(CFLAGS) {dollar}(INC) -c -o {dollar}@ {dollar}<
+
+.PHONY: all remake clean cleaner
+"""
+
+with open('Makefile', 'w', newline='\n') as f:
+    f.write(content)
+print("Makefile generated successfully!")