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CC := gcc
LD := ld
TARGET_ARCH := $(shell uname -m | sed -e s/i.86/x86_32/)
# NB. '-Wcast-qual' is nasty, so I omitted it.
CFLAGS := -fno-builtin -O3 -Wall -Ih/ -Wredundant-decls -Wno-format
CFLAGS += -Wstrict-prototypes -Wnested-externs -Wpointer-arith -Winline
ifeq ($(TARGET_ARCH),x86_32)
CFLAGS += -m32 -march=i686
LDFLAGS := -m elf_i386
endif
ifeq ($(TARGET_ARCH),x86_64)
CFLAGS += -m64 -mno-red-zone -fpic -fno-reorder-blocks
CFLAGS += -fno-asynchronous-unwind-tables
LDFLAGS := -m elf_x86_64
endif
TARGET := mini-os
OBJS := $(TARGET_ARCH).o
OBJS += $(patsubst %.c,%.o,$(wildcard *.c))
OBJS += $(patsubst %.c,%.o,$(wildcard lib/*.c))
OBJS := $(subst events.o,,$(OBJS))
OBJS := $(subst hypervisor.o,,$(OBJS))
OBJS := $(subst time.o,,$(OBJS))
HDRS := $(wildcard h/*.h)
HDRS += $(wildcard h/xen-public/*.h)
default: $(TARGET)
xen-public:
[ -e h/xen-public ] || ln -sf ../../../xen/include/public h/xen-public
$(TARGET): xen-public $(OBJS)
$(LD) -N -T minios-$(TARGET_ARCH).lds $(OBJS) -o $@.elf
gzip -f -9 -c $@.elf >$@.gz
clean:
find . -type f -name '*.o' | xargs rm -f
rm -f *.o *~ core $(TARGET).elf $(TARGET).raw $(TARGET) $(TARGET).gz
find . -type l | xargs rm -f
%.o: %.c $(HDRS) Makefile
$(CC) $(CFLAGS) -c $< -o $@
%.o: %.S $(HDRS) Makefile
$(CC) $(CFLAGS) -D__ASSEMBLY__ -c $< -o $@
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