1 # SPDX-License-Identifier: GPL-2.0-only
2 # tools/power/acpi/Makefile.config - ACPI tool Makefile
4 # Copyright (c) 2015, Intel Corporation
5 # Author: Lv Zheng <lv.zheng@intel.com>
9 srctree := $(patsubst %/,%,$(dir $(shell pwd)))
10 srctree := $(patsubst %/,%,$(dir $(srctree)))
11 #$(info Determined 'srctree' to be $(srctree))
14 include $(srctree)/../../scripts/Makefile.include
17 ifeq ("$(origin O)", "command line")
18 OUTPUT := $(O)/tools/power/acpi/
20 #$(info Determined 'OUTPUT' to be $(OUTPUT))
22 # --- CONFIGURATION BEGIN ---
24 # Set the following to `true' to make a unstripped, unoptimized
25 # binary. Leave this set to `false' for production use.
28 # make the build silent. Set this to something else to make it noisy again.
31 # Prefix to the directories we're installing to
34 # --- CONFIGURATION END ---
36 # Directory definitions. These are default and most probably
37 # do not need to be changed. Please note that DESTDIR is
38 # added in front of any of them
44 # Toolchain: what tools do we use, and what options do they need:
46 INSTALL = /usr/bin/install -c
47 INSTALL_PROGRAM = ${INSTALL}
48 INSTALL_DATA = ${INSTALL} -m 644
49 INSTALL_SCRIPT = ${INSTALL_PROGRAM}
51 # If you are running a cross compiler, you may want to set this
52 # to something more interesting, like "arm-linux-". If you want
53 # to compile vs uClibc, that can be done here as well.
54 CROSS = #/usr/i386-linux-uclibc/usr/bin/i386-uclibc-
55 CROSS_COMPILE ?= $(CROSS)
58 # check if compiler option is supported
59 cc-supports = ${shell if $(CC) ${1} -S -o /dev/null -x c /dev/null > /dev/null 2>&1; then echo "$(1)"; fi;}
61 # use '-Os' optimization if available, else use -O2
62 OPTIMIZATION := $(call cc-supports,-Os,-O2)
65 WARNINGS += $(call cc-supports,-Wstrict-prototypes)
66 WARNINGS += $(call cc-supports,-Wdeclaration-after-statement)
68 KERNEL_INCLUDE := $(OUTPUT)include
69 ACPICA_INCLUDE := $(srctree)/../../../drivers/acpi/acpica
70 CFLAGS += -D_LINUX -I$(KERNEL_INCLUDE) -I$(ACPICA_INCLUDE)
73 ifeq ($(strip $(V)),false)
81 # if DEBUG is enabled, then we do not strip or optimize
82 ifeq ($(strip $(DEBUG)),true)
83 CFLAGS += -O1 -g -DDEBUG
84 STRIPCMD = /bin/true -Since_we_are_debugging
86 CFLAGS += $(OPTIMIZATION) -fomit-frame-pointer
87 STRIPCMD = $(STRIP) -s --remove-section=.note --remove-section=.comment