1# SPDX-License-Identifier: GPL-2.0 2include ../../scripts/Makefile.include 3include ../../scripts/utilities.mak # QUIET_CLEAN 4 5ifeq ($(srctree),) 6srctree := $(patsubst %/,%,$(dir $(CURDIR))) 7srctree := $(patsubst %/,%,$(dir $(srctree))) 8srctree := $(patsubst %/,%,$(dir $(srctree))) 9#$(info Determined 'srctree' to be $(srctree)) 10endif 11 12CC ?= $(CROSS_COMPILE)gcc 13AR ?= $(CROSS_COMPILE)ar 14LD ?= $(CROSS_COMPILE)ld 15 16MAKEFLAGS += --no-print-directory 17 18LIBFILE = $(OUTPUT)libapi.a 19 20CFLAGS := $(EXTRA_WARNINGS) $(EXTRA_CFLAGS) 21CFLAGS += -ggdb3 -Wall -Wextra -std=gnu99 -U_FORTIFY_SOURCE -fPIC 22 23ifeq ($(DEBUG),0) 24ifeq ($(CC_NO_CLANG), 0) 25 CFLAGS += -O3 26else 27 CFLAGS += -O6 28endif 29endif 30 31ifeq ($(DEBUG),0) 32 CFLAGS += -D_FORTIFY_SOURCE 33endif 34 35# Treat warnings as errors unless directed not to 36ifneq ($(WERROR),0) 37 CFLAGS += -Werror 38endif 39 40CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 41CFLAGS += -I$(srctree)/tools/lib/api 42CFLAGS += -I$(srctree)/tools/include 43 44RM = rm -f 45 46API_IN := $(OUTPUT)libapi-in.o 47 48all: 49 50export srctree OUTPUT CC LD CFLAGS V 51include $(srctree)/tools/build/Makefile.include 52 53all: fixdep $(LIBFILE) 54 55$(API_IN): FORCE 56 @$(MAKE) $(build)=libapi 57 58$(LIBFILE): $(API_IN) 59 $(QUIET_AR)$(RM) $@ && $(AR) rcs $@ $(API_IN) 60 61clean: 62 $(call QUIET_CLEAN, libapi) $(RM) $(LIBFILE); \ 63 find $(or $(OUTPUT),.) -name \*.o -or -name \*.o.cmd -or -name \*.o.d | xargs $(RM) 64 65FORCE: 66 67.PHONY: clean FORCE 68