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# Build configuration
BUILD_DIR ?= build
INC_DIR := include
TARGET_AMD64 ?= mini-init-amd64
TARGET_ARM64 ?= mini-init-arm64
AMD64_SRC_DIR := src/amd64
ARM64_SRC_DIR := src/arm64
NASM := nasm
LD := ld
NASMFLAGS := -f elf64 -I$(INC_DIR)/ -g -F dwarf
LDFLAGS := -nostdlib -z noexecstack
ARM64_AS ?= aarch64-linux-gnu-as
ARM64_LD ?= aarch64-linux-gnu-ld
ARM64_ASFLAGS ?= -g
ARM64_LDFLAGS ?= -nostdlib -z noexecstack
AMD64_BUILD_DIR := $(BUILD_DIR)/amd64
ARM64_BUILD_DIR := $(BUILD_DIR)/arm64
AMD64_SRCS := main.asm signals.asm spawn.asm forward.asm wait.asm epoll.asm timer.asm log.asm time.asm
AMD64_OBJS := $(addprefix $(AMD64_BUILD_DIR)/,$(AMD64_SRCS:.asm=.o))
ARM64_SRCS := main.S signals.S spawn.S forward.S wait.S epoll.S timer.S log.S time.S util.S
ARM64_OBJS := $(addprefix $(ARM64_BUILD_DIR)/,$(ARM64_SRCS:.S=.o))
.PHONY: helper-arm64
ARM64_HELPERS_SRCS := helpers/exit42.S helpers/sleeper.S
ARM64_HELPERS_OBJS := $(addprefix $(ARM64_BUILD_DIR)/,$(ARM64_HELPERS_SRCS:.S=.o))
ARM64_HELPERS_BINS := $(ARM64_BUILD_DIR)/helper-exit42 $(ARM64_BUILD_DIR)/helper-sleeper
.PHONY: all all-amd64 build-arm64 clean test test-amd64 test-arm64 test-all
all: all-amd64
all-amd64: $(BUILD_DIR)/$(TARGET_AMD64)
build-arm64: $(BUILD_DIR)/$(TARGET_ARM64) $(ARM64_HELPERS_BINS)
build-amd64: $(BUILD_DIR)/$(TARGET_AMD64)
test: test-amd64
test-amd64: $(BUILD_DIR)/$(TARGET_AMD64)
bash scripts/test_harness.sh $(BUILD_DIR)/$(TARGET_AMD64)
test-arm64: $(BUILD_DIR)/$(TARGET_ARM64)
bash scripts/test_harness_arm64.sh $(BUILD_DIR)/$(TARGET_ARM64)
test-all: test-amd64
bash scripts/test_ep_signals.sh $(BUILD_DIR)/$(TARGET_AMD64)
bash scripts/test_edge_cases.sh $(BUILD_DIR)/$(TARGET_AMD64)
bash scripts/test_exit_code_mapping.sh $(BUILD_DIR)/$(TARGET_AMD64)
bash scripts/test_restart.sh $(BUILD_DIR)/$(TARGET_AMD64)
$(AMD64_BUILD_DIR):
mkdir -p $@
$(ARM64_BUILD_DIR):
mkdir -p $@
$(AMD64_BUILD_DIR)/%.o: $(AMD64_SRC_DIR)/%.asm | $(AMD64_BUILD_DIR)
$(NASM) $(NASMFLAGS) $< -o $@
$(ARM64_BUILD_DIR)/%.o: $(ARM64_SRC_DIR)/%.S | $(ARM64_BUILD_DIR)
$(ARM64_AS) $(ARM64_ASFLAGS) -I$(INC_DIR) $< -o $@
# Helper objects
$(ARM64_BUILD_DIR)/helpers/%.o: $(ARM64_SRC_DIR)/helpers/%.S | $(ARM64_BUILD_DIR)
mkdir -p $(ARM64_BUILD_DIR)/helpers
$(ARM64_AS) $(ARM64_ASFLAGS) -I$(INC_DIR) $< -o $@
$(BUILD_DIR)/$(TARGET_AMD64): $(AMD64_OBJS)
$(LD) $(LDFLAGS) -o $@ $(AMD64_OBJS)
$(BUILD_DIR)/$(TARGET_ARM64): $(ARM64_OBJS)
$(ARM64_LD) $(ARM64_LDFLAGS) -o $@ $(ARM64_OBJS)
# Helper binaries (linked standalone)
$(ARM64_BUILD_DIR)/helper-exit42: $(ARM64_BUILD_DIR)/helpers/exit42.o
$(ARM64_LD) $(ARM64_LDFLAGS) -o $@ $<
$(ARM64_BUILD_DIR)/helper-sleeper: $(ARM64_BUILD_DIR)/helpers/sleeper.o
$(ARM64_LD) $(ARM64_LDFLAGS) -o $@ $<
clean:
rm -rf $(BUILD_DIR)
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