INCLUDES=-Iinc -I.

# BUILD_DIR=out

ifeq ($(BUILD_DIR),)
BUILD_DIR := out
endif
ifeq ($(MANIFEST_BUILD_DIR),)
MANIFEST_BUILD_DIR := out/manifest
endif

SRC_DIR=src
MANIFEST_SRC_DIR=manifest_src
INC_DIR=inc
CC=gcc
OBJDUMP=objdump
LIBS=
STANDART=c23
OPTIMIZE=-Og
TARGET=device


DEFINES=-DOPCODE_WORDSIZE=2 -DMEM_CELL_WORDS=1 -DPC_WORDSIZE=3 -DGP_REG_CELL_WORDS=1 -DIO_REG_CELL_WORDS=1 -DARCH=$(ARCH)

C_SOURCES=$(wildcard $(SRC_DIR)/*.c)
MANIFEST_C_SOURCES=$(wildcard $(MANIFEST_SRC_DIR)/*.c)
C_HEADERS=$(wildcard $(INC_DIR)/*.h)

C_INCLUDES=-I$(INC_DIR)/

DISABLE_FLAGS=-Wno-unused-variable -Wno-unused-parameter -Wno-write-strings -Wno-pointer-arith -Wno-analyzer-use-of-uninitialized-value
PEDANTIC_FLAGS=-pedantic -pedantic-errors $(DISABLE_FLAGS) -Wall -Wcast-align -Wcast-qual -Wconversion -Wduplicated-branches -Wduplicated-cond -Werror -Wextra -Wfloat-equal -Wlogical-op -Wpedantic -Wredundant-decls -Wsign-conversion
ANALYZER_FLAGS=-fanalyzer
LSECTIONS=-ffunction-sections -fdata-sections -Wl,--gc-sections
CFLAGS=$(C_DEFS) -g $(C_INCLUDES) $(DEFINES) $(OPTIMIZE) --std=$(STANDART) $(PEDANTIC_FLAGS) $(ANALYZER_FLAGS) -fPIC
LFLAGS=$(OPTIMIZE) -g $(PEDANTIC_FLAGS) $(DEFINES) -flto -fuse-linker-plugin $(LSECTIONS) -lm $(LIBS) -fPIC -shared
MANIFEST_LFLAGS=$(OPTIMIZE) -g $(PEDANTIC_FLAGS) $(DEFINES) -flto -fuse-linker-plugin $(LSECTIONS) -lm $(LIBS) -fPIC



OBJECTS = $(addprefix $(BUILD_DIR)/,$(notdir $(C_SOURCES:.c=.o)))
MANIFEST_TARGETS = $(addprefix $(MANIFEST_BUILD_DIR)/,$(notdir $(MANIFEST_C_SOURCES:.c=.elf)))
vpath %.c $(sort $(dir $(C_SOURCES)))
vpath %.h $(sort $(dir $(C_HEADERS)))

rebuild: clean | build

all: 

build: date Dir $(C_HEADERS) target

$(BUILD_DIR)/%.o: %.c Makefile | $(BUILD_DIR)
	@echo -e '\033[1;32mCC ('$(ARCH)')\t'$<'\t->\t'$@'\033[0m'
	@$(CC) -c $(CFLAGS) -Wa,-a,-ad,-alms=$(BUILD_DIR)/$(notdir $(<:.c=.lst)) $< -o $@
	@$(OBJDUMP) -d -S $@ > $(BUILD_DIR)/$(notdir $(<:.c=.casm))

target: date $(BUILD_DIR)/$(TARGET).so

$(BUILD_DIR)/$(TARGET).so: $(OBJECTS)
	@echo -e '\033[1;32mELF ('$(ARCH)')\t'$(OBJECTS)'\n\t\t\t->\t'$@'\033[0m'
	@$(CC) $(LFLAGS) $(OBJECTS) -o $(BUILD_DIR)/$(TARGET).so

manifest: $(MANIFEST_TARGETS)
	@for elf in $(MANIFEST_TARGETS); do \
		echo -e "\033[1;32mRUN\t$$elf\033[0m"; \
		$$elf $(MANIFEST_BUILD_DIR) || { echo -e "\033[0;31merror running $$elf\033[0m"; exit 1; }; \
	done



$(MANIFEST_BUILD_DIR)/%.elf: $(MANIFEST_SRC_DIR)/%.c Makefile | $(MANIFEST_BUILD_DIR)
	@echo -e '\033[1;32mELF\t'$(OBJECTS)'\n\t\t\t->\t'$@'\033[0m'
	@$(CC) $(MANIFEST_LFLAGS) $< $(LDLIBS) -I inc -o $@

$(BUILD_DIR):
	@mkdir -p $(BUILD_DIR)

$(MANIFEST_BUILD_DIR):
	@mkdir -p $(MANIFEST_BUILD_DIR)

BuildDir:
	@mkdir -p $(BUILD_DIR)

SrcDir:
	@mkdir -p $(SRC_DIR)

IncDir:
	@mkdir -p $(INC_DIR)

Dir: BuildDir SrcDir IncDir

.PHONY: clean
clean:
	@rm -rf $(BUILD_DIR)/*
	@echo -e '\033[0;31mCleaned\033[0m'

.NOTPARALLEL: date target rebuild
date:
	@echo -e '\033[1;32m'"Starting build at " | tr -d '\n'
	@date
	@echo -e '\033[0m'