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# libc makefile
ifndef AR
AR = i686-elf-ar
endif
ifndef CFLAGS
CFLAGS = -ffreestanding -Wall -Wextra -g -std=gnu11 -O2 -Iinclude
CFLAGS += --sysroot=$(SYSROOT)
CFLAGS += -isystem $(SYSROOT)/usr/include
endif
ifndef CXXFLAGS
CXXFLAGS = -ffreestanding -Wall -Wextra -fno-exceptions -fno-rtti -D__is_kernel -g -O2 -Iinclude
CXXFLAGS += -Iinclude
CXXFLAGS += --sysroot=$(SYSROOT)
CXXFLAGS += -isystem $(SYSROOT)/usr/include
endif
ifndef LDFLAGS
LDFLAGS = -T arch/$(ARCH)/linker.ld -ffreestanding -g -O2 -Iinclude
LDFLAGS += --sysroot=$(SYSROOT)
LDFLAGS += -isystem $(SYSROOT)/usr/include
endif
ifndef SYSROOT
$(error No sysroot specified)
endif
LIBS = -nostdlib -lgcc
#Find all the source files
C_SOURCES := $(shell find $(PWD) -type f -name '*.c')
#CPP_SOURCES := $(shell find $(PWD)/kernel -type f -name '*.cpp')
HEADERS := $(shell find $(PWD) -type f -name '*.h')
#ASMFILES := $(shell find $(PWD) -type f -name '*.asm')
OBJECTS := $(patsubst %.c,%.o,$(C_SOURCES))
# OBJECTS += $(patsubst %.cpp,%.o,$(CPP_SOURCES))
# OBJECTS += $(patsubst %.asm,%.o,$(ASMFILES))
DEPFILES := $(patsubst %.c,%.d,$(C_SOURCES))
# DEPFILES += $(patsubst %.cpp,%.d,$(CPP_SOURCES))
LINKLST += $(OBJECTS)
LINKLST += $(LIBS)
-include $(DEPFILES)
.PHONY: all install-headers install-lib clean
all: libc.a install-lib
libc.a: ${OBJECTS}
$(info [INFO] Linking $<)
$(AR) rcs $@ $(OBJECTS)
%.o: %.cpp
$(info [INFO] Compiling $<)
$(CXX) ${CXXFLAGS} -MMD -MP -c $< -o $@
%.o: %.c
$(info [INFO] Compiling $<)
$(CC) $(CFLAGS) -MMD -MP -c $< -o $@
%.o: %.asm
$(info [INFO] Assembling $<)
$(NASM) $< -felf32 -o $@ -g
install-headers:
cp -r --preserve=timestamps include/. $(SYSROOT)/usr/include
install-lib: libc.a
cp -r $< $(SYSROOT)/usr/lib/.
clean:
$(info [INFO] Cleaning)
$(RM) ${OBJECTS} $(DEPFILES) libc.a
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