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# ============================================================================
# Bastion kernel - Top-Level Build System
#
# Usage:
# make ARCH=x86_64 defconfig — Create default .config for x86_64
# make ARCH=aarch64 defconfig — Create default .config for aarch64
# make ARCH=x86_64 build — Build for x86_64
# make ARCH=aarch64 build — Build for aarch64
# make ARCH=x86_64 run — Build + run in QEMU
# make ARCH=aarch64 run — Build + run in QEMU
# make all — Build both architectures
# make clean — Remove build artifacts and objects
# make distclean — Remove build + generated config
# ============================================================================
VERSION = 0
PATCHLEVEL = 0
SUBLEVEL = 1
NAME = Husky
.PHONY: all build clean distclean configure defconfig disk run check-config
RESULT_DIR := result
CONFIG_FILE := .config
CONFIG_H := include/kernel/config.h
CONFIG_MK := config_generated.mk
CONFIGURE := python3 scripts/configure.py #TODO: change to $(python)
-include $(CONFIG_MK)
# ── ARCH validation ────────────────────────────────────────────────────────
# Default ARCH if not specified
ARCH ?= $(shell uname -m)
ifneq ($(ARCH),x86_64)
ifneq ($(ARCH),aarch64)
$(error ARCH must be x86_64 or aarch64 (got: $(ARCH)))
endif
endif
# Derive EFI binary name from ARCH
# TODO: maybe add name of this artifact to config
ifeq ($(ARCH),x86_64)
EFI_BINARY := BOOTX64.EFI
else
EFI_BINARY := BOOTAA64.EFI
endif
ARCH_RESULT_DIR := $(RESULT_DIR)/$(ARCH)
# ── Build ──────────────────────────────────────────────────────────────────
all build: check-config
@echo "══════════════════════════════════════════"
@echo " Building Bastion — $(ARCH)"
@echo "══════════════════════════════════════════"
@echo " v.$(VERSION).$(PATCHLEVEL).$(SUBLEVEL) — $(NAME)"
@echo "══════════════════════════════════════════"
@echo " Build boot"
@echo "══════════════════════════════════════════"
$(MAKE) -C boot ARCH=$(ARCH) RESULT_DIR=$(CURDIR)/$(ARCH_RESULT_DIR)/boot
@echo "══════════════════════════════════════════"
@echo " Build kernel"
@echo "══════════════════════════════════════════"
$(MAKE) -C kernel ARCH=$(ARCH) RESULT_DIR=$(CURDIR)/$(ARCH_RESULT_DIR)/kernel
# ── Configuration ───────────────────────────────────────────────────────────
defconfig:
@cp configs/default_$(ARCH) $(CONFIG_FILE)
@echo "Created .config from configs/default_$(ARCH)"
@$(CONFIGURE) --arch $(ARCH)
@echo ""
# Regenerate config.h and config_generated.mk from .config
configure: $(CONFIG_FILE)
@$(CONFIGURE) --arch $(ARCH)
# Auto-generate config.h if .config exists but config.h is stale or broken or missing
check-config: $(CONFIG_FILE)
@if [ ! -f $(CONFIG_H) ] || [ $(CONFIG_FILE) -nt $(CONFIG_H) ] || [ scripts/configure.py -nt $(CONFIG_H) ]; then \
$(CONFIGURE) --arch $(ARCH); \
fi
# If .config doesn't exist, tell the user
$(CONFIG_FILE):
@echo "═══════════════════════════════════════════════════════════"
@echo " ERROR: No .config file found."
@echo ""
@echo " Create one with:"
@echo " make defconfig"
@echo " make ARCH=x86_64 defconfig"
@echo " make ARCH=aarch64 defconfig"
@echo ""
@echo " Or copy manually:"
@echo " cp configs/default_x86_64 .config"
@echo "═══════════════════════════════════════════════════════════"
@exit 1
# ── Disk images ─────────────────────────────────────────────────────────────
disk: build
bash scripts/create_disk.sh $(ARCH) \
$(ARCH_RESULT_DIR)/boot/$(EFI_BINARY) \
$(ARCH_RESULT_DIR)/kernel/$(CONFIG_KERNEL_FILE_NAME) \
$(ARCH_RESULT_DIR)/bastion.img
# ── QEMU ────────────────────────────────────────────────────────────────────
run: disk
@bash scripts/run_qemu.sh $(ARCH) $(ARCH_RESULT_DIR)/bastion.img
# ── Clean ───────────────────────────────────────────────────────────────────
clean:
rm -rf $(RESULT_DIR)
$(MAKE) -C boot ARCH=$(ARCH) clean
$(MAKE) -C kernel ARCH=$(ARCH) clean
@echo "Clean."
# Remove everything including generated config (but not .config itself)
distclean: clean
rm -f $(CONFIG_H) $(CONFIG_MK)
@echo "Distclean."
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