More debug features, update README, new makefile

Makefile

@@ -0,0 +1,77 @@
+CC = gcc
+CFLAGS = -Wall -Wextra -O3 -Isrc/include -Iinclude
+LDFLAGS = 
+
+# Directories
+SRC_DIR = src
+BUILD_DIR = build
+BIN_DIR = $(BUILD_DIR)/bin
+LIB_DIR = $(BUILD_DIR)/lib
+INC_DIR = $(BUILD_DIR)/include
+OBJ_DIR = $(BUILD_DIR)/obj
+
+# Output names
+EXECUTABLE = $(BIN_DIR)/ground
+SHARED_LIB = $(LIB_DIR)/libgroundvm.so
+HEADER = $(INC_DIR)/groundvm.h
+
+# Source files
+LIB_SOURCES = $(filter-out $(SRC_DIR)/main.c, $(wildcard $(SRC_DIR)/*.c))
+EXE_SOURCES = $(wildcard $(SRC_DIR)/*.c)
+
+# Object files
+LIB_OBJECTS = $(LIB_SOURCES:$(SRC_DIR)/%.c=$(OBJ_DIR)/lib_%.o)
+EXE_OBJECTS = $(EXE_SOURCES:$(SRC_DIR)/%.c=$(OBJ_DIR)/exe_%.o)
+
+# Default target: build standalone executable
+.PHONY: all
+all: executable
+
+# Build standalone executable
+.PHONY: executable
+executable: $(EXECUTABLE)
+
+# Build shared library
+.PHONY: library
+library: $(SHARED_LIB) $(HEADER)
+
+# Build both
+.PHONY: both
+both: executable library
+
+# Link executable
+$(EXECUTABLE): $(EXE_OBJECTS) | $(BIN_DIR)
+	$(CC) $(EXE_OBJECTS) -o $@ $(LDFLAGS)
+
+# Build shared library
+$(SHARED_LIB): $(LIB_OBJECTS) | $(LIB_DIR)
+	$(CC) -shared $(LIB_OBJECTS) -o $@ $(LDFLAGS)
+
+# Copy header for library distribution
+$(HEADER): include/groundvm.h | $(INC_DIR)
+	cp $< $@
+
+# Compile object files for executable
+$(OBJ_DIR)/exe_%.o: $(SRC_DIR)/%.c | $(OBJ_DIR)
+	$(CC) $(CFLAGS) -c $< -o $@
+
+# Compile object files for shared library (with -fPIC)
+$(OBJ_DIR)/lib_%.o: $(SRC_DIR)/%.c | $(OBJ_DIR)
+	$(CC) $(CFLAGS) -fPIC -c $< -o $@
+
+# Create directories
+$(BUILD_DIR) $(BIN_DIR) $(LIB_DIR) $(INC_DIR) $(OBJ_DIR):
+	mkdir -p $@
+
+# Clean build artifacts
+.PHONY: clean
+clean:
+	rm -rf $(BUILD_DIR)
+
+# Debug: print variables
+.PHONY: debug
+debug:
+	@echo "LIB_SOURCES: $(LIB_SOURCES)"
+	@echo "EXE_SOURCES: $(EXE_SOURCES)"
+	@echo "LIB_OBJECTS: $(LIB_OBJECTS)"
+	@echo "EXE_OBJECTS: $(EXE_OBJECTS)"