1# SPDX-License-Identifier: GPL-2.0-only
2
3define allow-override
4  $(if $(or $(findstring environment,$(origin $(1))),\
5            $(findstring command line,$(origin $(1)))),,\
6    $(eval $(1) = $(2)))
7endef
8
9# Allow setting CC and AR, or setting CROSS_COMPILE as a prefix.
10$(call allow-override,CC,$(CROSS_COMPILE)gcc)
11$(call allow-override,AR,$(CROSS_COMPILE)ar)
12$(call allow-override,STRIP,$(CROSS_COMPILE)strip)
13$(call allow-override,PKG_CONFIG,pkg-config)
14$(call allow-override,LD_SO_CONF_PATH,/etc/ld.so.conf.d/)
15$(call allow-override,LDCONFIG,ldconfig)
16export CC AR STRIP PKG_CONFIG LD_SO_CONF_PATH LDCONFIG
17
18FOPTS		:= -flto=auto -ffat-lto-objects -fexceptions -fstack-protector-strong	\
19		-fasynchronous-unwind-tables -fstack-clash-protection
20WOPTS		:= -O -Wall -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2		\
21		-Wp,-D_GLIBCXX_ASSERTIONS -Wno-maybe-uninitialized
22
23ifeq ($(CC),clang)
24  FOPTS		:= $(filter-out -flto=auto -ffat-lto-objects, $(FOPTS))
25  WOPTS		:= $(filter-out -Wno-maybe-uninitialized, $(WOPTS))
26endif
27
28CFLAGS		:= -g -DVERSION=\"$(VERSION)\" $(FOPTS) $(WOPTS) $(CFLAGS)
29LDFLAGS		:= -ggdb $(LDFLAGS)
30
31RM		:= rm -rf
32LN		:= ln -s
33INSTALL		:= install
34MKDIR		:= mkdir
35STRIP		:= strip
36BINDIR		:= /usr/bin
37CTAGS		:= ctags
38ETAGS		:= ctags -e
39
40.PHONY: install
41install: doc_install
42	@$(MKDIR) -p $(DESTDIR)$(BINDIR)
43	$(call QUIET_INSTALL,rtla)$(INSTALL) $(RTLA) -m 755 $(DESTDIR)$(BINDIR)
44	@$(STRIP) $(DESTDIR)$(BINDIR)/rtla
45	@test ! -f $(DESTDIR)$(BINDIR)/osnoise || $(RM) $(DESTDIR)$(BINDIR)/osnoise
46	@$(LN) rtla $(DESTDIR)$(BINDIR)/osnoise
47	@test ! -f $(DESTDIR)$(BINDIR)/hwnoise || $(RM) $(DESTDIR)$(BINDIR)/hwnoise
48	@$(LN) -s rtla $(DESTDIR)$(BINDIR)/hwnoise
49	@test ! -f $(DESTDIR)$(BINDIR)/timerlat || $(RM) $(DESTDIR)$(BINDIR)/timerlat
50	@$(LN) -s rtla $(DESTDIR)$(BINDIR)/timerlat
51
52.PHONY: tags
53tags:
54	$(CTAGS) -R --extras=+f --c-kinds=+p src
55
56.PHONY: TAGS
57TAGS:
58	$(ETAGS) -R --extras=+f --c-kinds=+p src
59
60.PHONY: tags_clean
61tags_clean:
62	$(RM) tags TAGS
63
64.PHONY: doc doc_clean doc_install
65doc:
66	$(MAKE) -C $(DOCSRC)
67
68doc_clean:
69	$(MAKE) -C $(DOCSRC) clean
70
71doc_install:
72	$(MAKE) -C $(DOCSRC) install
73
74# This section is necessary to make the rtla tarball
75NAME		:= rtla
76DIRS		:= src
77FILES		:= Makefile README.txt
78CEXT		:= bz2
79TARBALL		:= $(NAME)-$(VERSION).tar.$(CEXT)
80TAROPTS		:= -cvjf $(TARBALL)
81SRCTREE		:=	$(or $(BUILD_SRC),$(CURDIR))
82
83tarball: clean
84	$(RM) $(NAME)-$(VERSION) && $(MKDIR) $(NAME)-$(VERSION)
85	echo $(VERSION) > $(NAME)-$(VERSION)/VERSION
86	cp -r $(DIRS) $(FILES) $(NAME)-$(VERSION)
87	$(MKDIR) $(NAME)-$(VERSION)/Documentation/
88	cp -rp $(SRCTREE)/../../../Documentation/tools/$(NAME)/* $(NAME)-$(VERSION)/Documentation/
89	cp Makefile.standalone $(NAME)-$(VERSION)/Makefile
90	cp Makefile.$(NAME) $(NAME)-$(VERSION)/
91	tar $(TAROPTS) --exclude='*~' $(NAME)-$(VERSION)
92	$(RM) $(NAME)-$(VERSION)
93.PHONY: tarball
94