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.SILENT:
###############################
# Feature stuff
###############################
override SPECTRE_MITIGATION = @SPECTRE_MITIGATION@
ifeq ($(SPECTRE_MITIGATION), 1)
override SPECTRE_FLAGS=-D__SPECTRE_MITIGATION
else
override SPECTRE_FLAGS=
endif
###############################
# CFLAGS, QEMU flags + misc
###############################
override ARCH = @ARCH@
override VEGA_VERSION = @PACKAGE_VERSION@
override PROMPT := printf "%s\t\t%s\n"
override KERNEL_DEFINES = -DVEGA_VERSION="\"$(VEGA_VERSION)\""\
-DVEGA_BUILDDATE="\"@VEGA_BUILDDATE@\""\
-DVEGA_BUILDBRANCH="\"@VEGA_BUILDBRANCH@\""\
-DVEGA_ARCH="\"@ARCH@\""\
$(SPECTRE_FLAGS)
override KERNEL_CFLAGS = @KERNEL_CFLAGS@ $(KERNEL_DEFINES)
override KERNEL_LDFLAGS = -nostdlib -zmax-page-size=0x1000 -static -Tconf/link-$(ARCH).ld
override QEMU_FLAGS = @QEMU_FLAGS@
######################
# Binutils stuff
######################
override CC = $(shell pwd)/cross/bin/$(ARCH)-elf-gcc
override LD = $(shell pwd)/cross/bin/$(ARCH)-elf-ld
override AS = $(CC)
##########################
# Architecture specifics
##########################
override ALL_ARCH_CFILES = find sys/ -name "*.c" | grep "sys/arch/$(ARCH).*"
override ALL_ARCH_ASM_FILES = find sys/ -name "*.S" | grep "sys/arch/$(ARCH).*"
override QEMU = @QEMU@
##########################
# General kernel sources
##########################
override KERNEL_CFILES = $(shell find sys/ -name "*.c" | grep -v "sys/arch/*" | grep -v sys/kern/ksyms.c) $(shell $(ALL_ARCH_CFILES))
override KERNEL_ASMFILES = $(shell find sys/ -name "*.S" | grep -v "sys/arch/*") $(shell $(ALL_ARCH_ASM_FILES))
########################
# Objects & header deps
########################
override KERNEL_OBJECTS = $(KERNEL_CFILES:.c=.o)
override KERNEL_ASMOBJECTS = $(KERNEL_ASMFILES:.S=.S.o)
override KERNEL_HEADER_DEPS = $(KERNEL_CFILES:.c=.d)
.PHONY: all
all: base/boot/vega-kernel
rm -f sys/include/machine
rm -rf iso_root
.PHONY: run
run:
$(QEMU) $(QEMU_FLAGS)
.PHONY: cross
cross:
bash tools/cross.sh $(ARCH)
.PHONY: clean
clean:
rm -f $(KERNEL_ASMOBJECTS) $(KERNEL_OBJECTS) $(KERNEL_HEADER_DEPS)
rm -f sys/include/machine
sys/include/machine/:
cd sys/include/; ln -sf arch/$(ARCH) machine
base/boot/vega-kernel: $(KERNEL_OBJECTS) $(KERNEL_ASMOBJECTS)
rm -rf iso_root
mkdir -p base/boot/
$(PROMPT) " LD " $(shell pwd)/base/boot/vega-kernel
$(LD) $(KERNEL_LDFLAGS) $(KERNEL_OBJECTS) $(KERNEL_ASMOBJECTS) -o base/boot/vega-kernel
tools/ksyms sys/kern/ksyms.c base/boot/vega-kernel
# === Generating symbols ===
$(CC) -c $(KERNEL_CFLAGS) $(KERNEL_DEFINES) sys/kern/ksyms.c -o sys/kern/ksyms.o
$(LD) $(KERNEL_LDFLAGS) $(KERNEL_OBJECTS) $(KERNEL_ASMOBJECTS) -o base/boot/vega-kernel
cd base/; tar cvf ../initramfs.tar * &> /dev/null
$(PROMPT) " RAMFS " $(shell pwd)/initramfs.tar
# === Building ISO ===
mkdir -p iso_root/boot/
mkdir -p iso_root/EFI/BOOT/
cp stand/limine/BOOTX64.EFI iso_root/EFI/BOOT/
cp conf/limine.cfg stand/limine/limine-bios.sys \
stand/limine/limine-bios-cd.bin stand/limine/limine-uefi-cd.bin iso_root/
cp base/boot/vega-kernel iso_root/boot/
mv initramfs.tar iso_root/boot/
xorriso -as mkisofs -b limine-bios-cd.bin -no-emul-boot -boot-load-size 4\
-boot-info-table --efi-boot limine-uefi-cd.bin -efi-boot-part \
--efi-boot-image --protective-msdos-label iso_root -o Vega.iso > /dev/null
stand/limine/limine bios-install Vega.iso
$(PROMPT) " ISO " $(shell pwd)/Vega.iso
-include $(KERNEL_HEADER_DEPS)
%.o: %.c sys/include/machine/
$(PROMPT) " CC " $<
$(CC) -c $(KERNEL_CFLAGS) $(KERNEL_DEFINES) $< -o $@
%.S.o: %.S
$(PROMPT) " AS " $<
$(CC) -c $< -o $@ -D__$(ARCH)__ -I sys/include/
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