DIR := arch/x86/
CXXFLAGS += -fno-omit-frame-pointer -march=i686

$(BUILDDIR)/kernel: $(OBJS) $(DIR)linker-script
	@echo $(COMP): Linking kernel: $@
	@$(MKDIR) $(dir $@)
	@$(CXX) $(OBJS) -lgcc -lsupc++ -nostdlib -o "$@" -Wl,-T$(DIR)linker-script

# GRUB refuses to use the addresses in the multiboot header if it
# finds a valid ELF header, so the dd hacks a zero into the high byte
# of the physical address field.  I tried using AT() in the linker
# script to properly generate separate physical and virtual
# addresses, but that caused the strip command to issue a warning and
# wipe out the BSS (setting memsz to filesz).

$(BUILDDIR)/kernel.stripped: $(BUILDDIR)/kernel
	@echo $(COMP): Stripping kernel: $@
	@$(STRIP) $(BUILDDIR)/kernel -o "$@"
	@dd if=/dev/zero of=$(BUILDDIR)/kernel.stripped conv=notrunc \
	bs=1 count=1 seek=67