d02e1d97d9
Now the bootloader should be responsible for all initial setup, loading the kernel, and then handing off to the kernel with proper data in place.
201 lines
6.2 KiB
Makefile
201 lines
6.2 KiB
Makefile
ARCH ?= x86_64
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include src/arch/$(ARCH)/config.mk
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BUILD_D := build
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ARCH_D := src/arch/$(ARCH)
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VERSION ?= $(shell git describe --dirty --always)
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EFI_DIR := external/gnu-efi
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EFI_DATA := $(EFI_DIR)/gnuefi
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EFI_LDS := $(EFI_DATA)/elf_$(ARCH)_efi.lds
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EFI_ARCH_DIR := $(EFI_DIR)/$(ARCH)
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EFI_ARCH_DATA := $(EFI_ARCH_DIR)/gnuefi
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EFI_CRT_OBJ := $(EFI_ARCH_DATA)/crt0-efi-$(ARCH).o
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EFI_LIB := $(EFI_ARCH_DIR)/lib/libefi.a
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EFI_INCLUDES := $(EFI_DIR)/inc
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DEPENDFLAGS := -MMD
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INCLUDES := -I $(ARCH_D)
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INCLUDES += -I src/modules
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INCLUDES += -isystem $(EFI_INCLUDES)
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INCLUDES += -isystem $(EFI_INCLUDES)/$(ARCH)
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INCLUDES += -isystem $(EFI_INCLUDES)/protocol
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BASEFLAGS := -O2 -fpic -nostdlib
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BASEFLAGS += -ffreestanding -nodefaultlibs
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BASEFLAGS += -fno-builtin -fomit-frame-pointer
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ifdef CPU
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BASEFLAGS += -mcpu=$(CPU)
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endif
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# Removed Flags:: -Wcast-align
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WARNFLAGS := -Wall -Werror -Wextra -Wshadow -Wwrite-strings
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WARNFLAGS += -Wformat=2 -Winit-self -Wfloat-equal -Winline
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WARNFLAGS += -Winvalid-pch -Wmissing-format-attribute
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WARNFLAGS += -Wmissing-include-dirs -Wswitch -Wundef
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WARNFLAGS += -Wdisabled-optimization -Wpointer-arith
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WARNFLAGS += -Wno-attributes -Wno-sign-compare -Wno-multichar
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WARNFLAGS += -Wno-div-by-zero -Wno-endif-labels -Wno-pragmas
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WARNFLAGS += -Wno-format-extra-args -Wno-unused-result
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WARNFLAGS += -Wno-deprecated-declarations -Wno-unused-function
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WARNFLAGS += -Wno-unused-but-set-parameter
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ASFLAGS ?=
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CFLAGS := $(INCLUDES) $(DEPENDFLAGS) $(BASEFLAGS) $(WARNFLAGS)
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CFLAGS += -std=c11 -fpic -fshort-wchar
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CFLAGS += -mno-red-zone -fno-stack-protector
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CFLAGS += -DGIT_VERSION="L\"$(VERSION)\""
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CFLAGS += -DEFI_DEBUG=0 -DEFI_DEBUG_CLEAR_MEMORY=0
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CFLAGS += -DGNU_EFI_USE_MS_ABI -DHAVE_USE_MS_ABI
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#CFLAGS += -DEFI_FUNCTION_WRAPPER
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BOOT_CFLAGS := -I src/boot $(CFLAGS)
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ifdef MAX_HRES
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BOOT_CFLAGS += -DMAX_HRES=$(MAX_HRES)
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endif
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LDFLAGS := -L $(BUILD_D) -ggdb -fPIC -shared
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LDFLAGS += -nostdlib -znocombreloc -Bsymbolic -nostartfiles
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BOOT_LDFLAGS := $(LDFLAGS)
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BOOT_LDFLAGS += -L $(EFI_ARCH_DIR)/lib -L $(EFI_ARCH_DIR)/gnuefi
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AS ?= $(CROSS)as
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AR ?= $(CROSS)ar
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CC ?= $(CROSS)gcc
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CXX ?= $(CROSS)g++
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LD ?= $(CROSS)ld
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OBJC := $(CROSS)objcopy
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OBJD := $(CROSS)objdump
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INIT_DEP := $(BUILD_D)/.builddir
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BOOT_SRCS := $(wildcard src/boot/*.c)
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BOBJS += $(patsubst src/boot/%,$(BUILD_D)/boot/%,$(patsubst %,%.o,$(BOOT_SRCS)))
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BDEPS := $(patsubst src/boot/%,$(BUILD_D)/boot/%,$(patsubst %,%.d,$(BOOT_SRCS)))
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ARCH_SRCS := $(wildcard $(ARCH_D)/*.s)
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ARCH_SRCS += $(wildcard $(ARCH_D)/*.c)
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KOBJS += $(patsubst $(ARCH_D)/%,$(BUILD_D)/arch/%,$(patsubst %,%.o,$(ARCH_SRCS)))
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DEPS := $(patsubst $(ARCH_D)/%,$(BUILD_D)/arch/%,$(patsubst %,%.d,$(ARCH_SRCS)))
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MOD_TARGETS :=
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PARTED ?= /sbin/parted
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QEMU ?= qemu-system-x86_64
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GDBPORT ?= 27006
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CPUS ?= 2
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OVMF ?= assets/ovmf/x64/OVMF.fd
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QEMUOPTS := -pflash $(OVMF)
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QEMUOPTS += -drive file=$(BUILD_D)/fs.img,format=raw
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QEMUOPTS += -smp $(CPUS)
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QEMUOPTS += -m 512
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QEMUOPTS += -d guest_errors
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QEMUOPTS += $(QEMUEXTRA)
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all: $(BUILD_D)/fs.img
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init: $(INIT_DEP)
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$(INIT_DEP):
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mkdir -p $(BUILD_D) $(patsubst %,$(BUILD_D)/d.%,$(MODULES))
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mkdir -p $(BUILD_D)/boot
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mkdir -p $(BUILD_D)/arch
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touch $(INIT_DEP)
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clean:
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rm -rf $(BUILD_D)/* $(BUILD_D)/.version $(BUILD_D)/.builddir
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dist-clean: clean
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make -C external/gnu-efi clean
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.PHONY: all clean dist-clean init
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$(BUILD_D)/.version:
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echo '$(VERSION)' | cmp -s - $@ || echo '$(VERSION)' > $@
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-include x $(patsubst %,src/modules/%/module.mk,$(MODULES))
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-include x $(DEPS)
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$(EFI_LIB):
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make -C external/gnu-efi all
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$(BUILD_D)/kernel.elf: $(KOBJS) $(MOD_TARGETS) $(ARCH_D)/kernel.ld
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$(LD) $(LDFLAGS) -T $(ARCH_D)/kernel.ld -o $@ $(KOBJS) $(patsubst %,-l%,$(MODULES))
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$(BUILD_D)/boot.elf: $(BOBJS) $(EFI_LIB)
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$(LD) $(BOOT_LDFLAGS) -T $(EFI_LDS) -o $@ \
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$(EFI_CRT_OBJ) $(BOBJS) $(patsubst %,-l%,$(MODULES)) -lefi -lgnuefi
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$(BUILD_D)/boot.efi: $(BUILD_D)/boot.elf
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objcopy -j .text -j .sdata -j .data -j .dynamic \
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-j .dynsym -j .rel -j .rela -j .reloc \
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--target=efi-app-$(ARCH) $^ $@
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$(BUILD_D)/boot.debug.efi: $(BUILD_D)/boot.elf
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objcopy -j .text -j .sdata -j .data -j .dynamic \
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-j .dynsym -j .rel -j .rela -j .reloc \
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-j .debug_info -j .debug_abbrev -j .debug_loc -j .debug_str \
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-j .debug_aranges -j .debug_line -j .debug_macinfo \
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--target=efi-app-$(ARCH) $^ $@
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$(BUILD_D)/%.elf.dump: $(BUILD_D)/%.elf
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$(OBJD) -D -S $< > $@
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$(BUILD_D)/%.bin.dump: $(BUILD_D)/%.bin
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$(OBJD) -D $< > $@
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$(BUILD_D)/%.bin: $(BUILD_D)/%.elf
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$(OBJC) $< -O binary $@
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$(BUILD_D)/boot/%.s.o: src/boot/%.s $(INIT_DEP)
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$(AS) $(ASFLAGS) -o $@ $<
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$(BUILD_D)/boot/%.c.o: src/boot/%.c $(INIT_DEP)
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$(CC) $(BOOT_CFLAGS) -c -o $@ $<
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$(BUILD_D)/arch/%.s.o: $(ARCH_D)/%.s $(INIT_DEP)
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$(AS) $(ASFLAGS) -o $@ $<
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$(BUILD_D)/arch/%.c.o: $(ARCH_D)/%.c $(INIT_DEP)
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$(CC) $(CFLAGS) -c -o $@ $<
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$(BUILD_D)/fs.img: $(BUILD_D)/boot.efi $(BUILD_D)/kernel.bin
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$(eval TEMPFILE := $(shell mktemp --suffix=.img))
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dd if=/dev/zero of=$@.tmp bs=512 count=93750
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$(PARTED) $@.tmp -s -a minimal mklabel gpt
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$(PARTED) $@.tmp -s -a minimal mkpart EFI FAT16 2048s 93716s
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$(PARTED) $@.tmp -s -a minimal toggle 1 boot
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dd if=/dev/zero of=$(TEMPFILE) bs=512 count=91669
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mformat -i $(TEMPFILE) -h 32 -t 32 -n 64 -c 1
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mmd -i $(TEMPFILE) ::/EFI
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mmd -i $(TEMPFILE) ::/EFI/BOOT
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mcopy -i $(TEMPFILE) $(BUILD_D)/boot.efi ::/EFI/BOOT/BOOTX64.efi
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mcopy -i $(TEMPFILE) $(BUILD_D)/kernel.bin ::/kernel.bin
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mlabel -i $(TEMPFILE) ::Popcorn_OS
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dd if=$(TEMPFILE) of=$@.tmp bs=512 count=91669 seek=2048 conv=notrunc
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rm $(TEMPFILE)
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mv $@.tmp $@
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$(BUILD_D)/fs.iso: $(BUILD_D)/fs.img
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mkdir -p $(BUILD_D)/iso
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cp $< $(BUILD_D)/iso/
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xorriso -as mkisofs -R -f -e fs.img -no-emul-boot -o $@ $(BUILD_D)/iso
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qemu: $(BUILD_D)/fs.img
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"$(QEMU)" $(QEMUOPTS) -nographic
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qemu-window: $(BUILD_D)/fs.img
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"$(QEMU)" $(QEMUOPTS)
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qemu-gdb: $(BUILD_D)/fs.img $(BUILD_D)/boot.debug.efi
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"$(QEMU)" $(QEMUOPTS) -S -D popcorn-qemu.log -s
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# vim: ft=make ts=4
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