criscv/Makefile
2024-10-19 11:50:02 +02:00

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1.4 KiB
Makefile

# Compiler to use
CC := gcc
# Compiler flags:
# -Wall: Enable all warnings
# -Wextra: Enable extra warnings
# -std=gnu23: Use GNU C23 standard
# -I include: Add 'include' directory to the include path
# -O3: Optimize code (level 3)
# -Wno-unused-variable: Disable warnings for unused variables
ifeq ($(DEBUG),1)
CFLAGS := -Wall -Wextra -std=gnu23 -I include -O0 -g -lelf
else
CFLAGS := -Wall -Wextra -std=gnu23 -I include -O3 -lelf
endif
# Directory for build outputs
BUILD_DIR := build
# Name of the output program
PROGRAM_NAME := criscv
# Find all .c files in the source directory
SRCS := $(wildcard src/*.c)
# Generate corresponding .o file names in the build/obj directory
OBJS := $(patsubst src/%.c,$(BUILD_DIR)/obj/%.o,$(SRCS))
# Name of the final executable
TARGET := $(BUILD_DIR)/$(PROGRAM_NAME)
# Declare 'all' and 'clean' as phony targets (not files)
.PHONY: all clean
# Default target: build the executable
all: $(TARGET)
# Rule to link object files into the final executable
$(TARGET): $(OBJS) | $(BUILD_DIR)
$(CC) $(CFLAGS) $^ -o $@
du -b $(TARGET) # Size of the executable in bytes
# Rule to compile source files into object files
$(BUILD_DIR)/obj/%.o: src/%.c | $(BUILD_DIR)/obj
$(CC) $(CFLAGS) -c $< -o $@
# Create build directories if they don't exist
$(BUILD_DIR) $(BUILD_DIR)/obj:
mkdir -p $@
# Clean target: remove the build directory
clean:
rm -rf $(BUILD_DIR)