1##
2##  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
3##
4##  Use of this source code is governed by a BSD-style license
5##  that can be found in the LICENSE file in the root of the source
6##  tree. An additional intellectual property rights grant can be found
7##  in the file PATENTS.  All contributing project authors may
8##  be found in the AUTHORS file in the root of the source tree.
9##
10
11
12include config.mk
13quiet?=true
14ifeq ($(target),)
15# If a target wasn't specified, invoke for all enabled targets.
16.DEFAULT:
17	@for t in $(ALL_TARGETS); do \
18	     $(MAKE) --no-print-directory target=$$t $(MAKECMDGOALS) || exit $$?;\
19        done
20all: .DEFAULT
21clean:: .DEFAULT
22install:: .DEFAULT
23
24
25# Note: md5sum is not installed on OS X, but openssl is. Openssl may not be
26# installed on cygwin, so we need to autodetect here.
27md5sum := $(firstword $(wildcard \
28          $(foreach e,md5sum openssl,\
29          $(foreach p,$(subst :, ,$(PATH)),$(p)/$(e)*))\
30          ))
31md5sum := $(if $(filter %openssl,$(md5sum)),$(md5sum) dgst -md5,$(md5sum))
32
33TGT_CC:=$(word 3, $(subst -, ,$(TOOLCHAIN)))
34dist:
35	@for t in $(ALL_TARGETS); do \
36	     $(MAKE) --no-print-directory target=$$t $(MAKECMDGOALS) || exit $$?;\
37        done
38        # Run configure for the user with the current toolchain.
39	@if [ -d "$(DIST_DIR)/src" ]; then \
40            mkdir -p "$(DIST_DIR)/build"; \
41            cd "$(DIST_DIR)/build"; \
42            echo "Rerunning configure $(CONFIGURE_ARGS)"; \
43            ../src/configure $(CONFIGURE_ARGS); \
44            $(if $(filter vs%,$(TGT_CC)),make NO_LAUNCH_DEVENV=1;) \
45        fi
46	@if [ -d "$(DIST_DIR)" ]; then \
47            echo "    [MD5SUM] $(DIST_DIR)"; \
48	    cd $(DIST_DIR) && \
49	    $(md5sum) `find . -name md5sums.txt -prune -o -type f -print` \
50                | sed -e 's/MD5(\(.*\))= \([0-9a-f]\{32\}\)/\2  \1/' \
51                > md5sums.txt;\
52        fi
53
54
55endif
56
57ifneq ($(target),)
58# Normally, we want to build the filename from the target and the toolchain.
59# This disambiguates from the $(target).mk file that exists in the source tree.
60# However, the toolchain is part of the target in universal builds, so we
61# don't want to include TOOLCHAIN in that case. FAT_ARCHS is used to test
62# if we're in the universal case.
63include $(target)$(if $(FAT_ARCHS),,-$(TOOLCHAIN)).mk
64endif
65BUILD_ROOT?=.
66VPATH=$(SRC_PATH_BARE)
67CFLAGS+=-I$(BUILD_PFX)$(BUILD_ROOT) -I$(SRC_PATH)
68ASFLAGS+=-I$(BUILD_PFX)$(BUILD_ROOT)/ -I$(SRC_PATH)/
69DIST_DIR?=dist
70HOSTCC?=gcc
71TGT_ISA:=$(word 1, $(subst -, ,$(TOOLCHAIN)))
72TGT_OS:=$(word 2, $(subst -, ,$(TOOLCHAIN)))
73TGT_CC:=$(word 3, $(subst -, ,$(TOOLCHAIN)))
74quiet:=$(if $(verbose),,yes)
75qexec=$(if $(quiet),@)
76
77# Cancel built-in implicit rules
78%: %.o
79%.asm:
80%.a:
81
82#
83# Common rules"
84#
85.PHONY: all-$(target)
86all-$(target):
87
88.PHONY: clean
89clean::
90	rm -f $(OBJS-yes) $(OBJS-yes:.o=.d) $(OBJS-yes:.asm.s.o=.asm.s)
91	rm -f $(CLEAN-OBJS)
92
93.PHONY: dist
94dist:
95.PHONY: install
96install::
97
98$(BUILD_PFX)%.c.d: %.c
99	$(if $(quiet),@echo "    [DEP] $@")
100	$(qexec)mkdir -p $(dir $@)
101	$(qexec)$(CC) $(CFLAGS) -M $< | $(fmt_deps) > $@
102
103$(BUILD_PFX)%.c.o: %.c
104	$(if $(quiet),@echo "    [CC] $@")
105	$(qexec)$(CC) $(CFLAGS) -c -o $@ $<
106
107$(BUILD_PFX)%.asm.d: %.asm
108	$(if $(quiet),@echo "    [DEP] $@")
109	$(qexec)mkdir -p $(dir $@)
110	$(qexec)$(SRC_PATH_BARE)/build/make/gen_asm_deps.sh \
111            --build-pfx=$(BUILD_PFX) --depfile=$@ $(ASFLAGS) $< > $@
112
113$(BUILD_PFX)%.asm.o: %.asm
114	$(if $(quiet),@echo "    [AS] $@")
115	$(qexec)$(AS) $(ASFLAGS) -o $@ $<
116
117$(BUILD_PFX)%.s.d: %.s
118	$(if $(quiet),@echo "    [DEP] $@")
119	$(qexec)mkdir -p $(dir $@)
120	$(qexec)$(SRC_PATH_BARE)/build/make/gen_asm_deps.sh \
121            --build-pfx=$(BUILD_PFX) --depfile=$@ $(ASFLAGS) $< > $@
122
123$(BUILD_PFX)%.s.o: %.s
124	$(if $(quiet),@echo "    [AS] $@")
125	$(qexec)$(AS) $(ASFLAGS) -o $@ $<
126
127.PRECIOUS: %.asm.s
128$(BUILD_PFX)%.asm.s: %.asm
129	$(if $(quiet),@echo "    [ASM CONVERSION] $@")
130	$(qexec)mkdir -p $(dir $@)
131	$(qexec)$(ASM_CONVERSION) <$< >$@
132
133# If we're in debug mode, pretend we don't have GNU strip, to fall back to
134# the copy implementation
135HAVE_GNU_STRIP := $(if $(CONFIG_DEBUG),,$(HAVE_GNU_STRIP))
136ifeq ($(HAVE_GNU_STRIP),yes)
137# Older binutils strip global sybols not needed for relocation processing
138# when given --strip-unneeded. Use nm and awk to identify globals and
139# keep them.
140%.a: %_g.a
141	$(if $(quiet),@echo "    [STRIP] $@ < $<")
142	$(qexec)$(STRIP) --strip-unneeded \
143         `$(NM) $< | grep ' [A-TV-Z] ' | awk '{print "-K"$$3'}`\
144          -o $@ $<
145else
146%.a: %_g.a
147	$(if $(quiet),@echo "    [CP] $@ < $<")
148	$(qexec)cp $< $@
149endif
150
151#
152# Rule to extract assembly constants from C sources
153#
154obj_int_extract: build/make/obj_int_extract.c
155	$(if $(quiet),echo "    [HOSTCC] $@")
156	$(qexec)$(HOSTCC) -I. -o $@ $<
157CLEAN-OBJS += obj_int_extract
158
159#
160# Utility functions
161#
162pairmap=$(if $(strip $(2)),\
163    $(call $(1),$(word 1,$(2)),$(word 2,$(2)))\
164    $(call pairmap,$(1),$(wordlist 3,$(words $(2)),$(2)))\
165)
166
167enabled=$(filter-out $($(1)-no),$($(1)-yes))
168cond_enabled=$(if $(filter yes,$($(1))), $(call enabled,$(2)))
169
170find_file1=$(word 1,$(wildcard $(subst //,/,$(addsuffix /$(1),$(2)))))
171find_file=$(foreach f,$(1),$(call find_file1,$(strip $(f)),$(strip $(2))) )
172obj_pats=.c=.c.o $(AS_SFX)=$(AS_SFX).o
173objs=$(addprefix $(BUILD_PFX),$(foreach p,$(obj_pats),$(filter %.o,$(1:$(p))) ))
174
175install_map_templates=$(eval $(call install_map_template,$(1),$(2)))
176
177not=$(subst yes,no,$(1))
178
179ifeq ($(CONFIG_MSVS),yes)
180lib_file_name=$(1).lib
181else
182lib_file_name=lib$(1).a
183endif
184#
185# Rule Templates
186#
187define linker_template
188$(1): $(filter-out -%,$(2))
189$(1):
190	$(if $(quiet),@echo    "    [LD] $$@")
191	$(qexec)$$(LD) $$(strip $$(LDFLAGS) -o $$@ $(2) $(3) $$(extralibs))
192endef
193# make-3.80 has a bug with expanding large input strings to the eval function,
194# which was triggered in some cases by the following component of
195# linker_template:
196#   $(1): $$(call find_file, $(patsubst -l%,lib%.a,$(filter -l%,$(2))),\
197#                           $$(patsubst -L%,%,$$(filter -L%,$$(LDFLAGS) $(2))))
198# This may be useful to revisit in the future (it tries to locate libraries
199# in a search path and add them as prerequisites
200
201define install_map_template
202$(DIST_DIR)/$(1): $(2)
203	$(if $(quiet),@echo "    [INSTALL] $$@")
204	$(qexec)mkdir -p $$(dir $$@)
205	$(qexec)cp -p $$< $$@
206endef
207
208define archive_template
209# Not using a pattern rule here because we don't want to generate empty
210# archives when they are listed as a dependency in files not responsible
211# for creating them.
212$(1):
213	$(if $(quiet),@echo "    [AR] $$@")
214	$(qexec)$$(AR) $$(ARFLAGS) $$@ $$?
215endef
216
217define so_template
218# Not using a pattern rule here because we don't want to generate empty
219# archives when they are listed as a dependency in files not responsible
220# for creating them.
221#
222# This needs further abstraction for dealing with non-GNU linkers.
223$(1):
224	$(if $(quiet),@echo "    [LD] $$@")
225	$(qexec)$$(LD) -shared $$(LDFLAGS) \
226            -Wl,--no-undefined -Wl,-soname,$$(SONAME) \
227            -Wl,--version-script,$$(SO_VERSION_SCRIPT) -o $$@ \
228            $$(filter %.o,$$?) $$(extralibs)
229endef
230
231define lipo_lib_template
232$(1): $(addsuffix /$(1),$(FAT_ARCHS))
233	$(if $(quiet),@echo "    [LIPO] $$@")
234	$(qexec)libtool -static -o $$@ $$?
235endef
236
237define lipo_bin_template
238$(1): $(addsuffix /$(1),$(FAT_ARCHS))
239	$(if $(quiet),@echo "    [LIPO] $$@")
240	$(qexec)lipo -output $$@ -create $$?
241endef
242
243
244#
245# Get current configuration
246#
247ifneq ($(target),)
248include $(SRC_PATH_BARE)/$(target:-$(TOOLCHAIN)=).mk
249endif
250ifeq ($(filter clean,$(MAKECMDGOALS)),)
251  # Older versions of make don't like -include directives with no arguments
252  ifneq ($(filter %.d,$(OBJS-yes:.o=.d)),)
253    -include $(filter %.d,$(OBJS-yes:.o=.d))
254  endif
255endif
256
257#
258# Configuration dependant rules
259#
260$(call pairmap,install_map_templates,$(INSTALL_MAPS))
261
262DOCS=$(call cond_enabled,CONFIG_INSTALL_DOCS,DOCS)
263.docs: $(DOCS)
264	@touch $@
265
266INSTALL-DOCS=$(call cond_enabled,CONFIG_INSTALL_DOCS,INSTALL-DOCS)
267ifeq ($(MAKECMDGOALS),dist)
268INSTALL-DOCS+=$(call cond_enabled,CONFIG_INSTALL_DOCS,DIST-DOCS)
269endif
270.install-docs: .docs $(addprefix $(DIST_DIR)/,$(INSTALL-DOCS))
271	@touch $@
272
273clean::
274	rm -f .docs .install-docs $(DOCS)
275
276BINS=$(call enabled,BINS)
277.bins: $(BINS)
278	@touch $@
279
280INSTALL-BINS=$(call cond_enabled,CONFIG_INSTALL_BINS,INSTALL-BINS)
281ifeq ($(MAKECMDGOALS),dist)
282INSTALL-BINS+=$(call cond_enabled,CONFIG_INSTALL_BINS,DIST-BINS)
283endif
284.install-bins: .bins $(addprefix $(DIST_DIR)/,$(INSTALL-BINS))
285	@touch $@
286
287clean::
288	rm -f .bins .install-bins $(BINS)
289
290LIBS=$(call enabled,LIBS)
291.libs: $(LIBS)
292	@touch $@
293$(foreach lib,$(filter %_g.a,$(LIBS)),$(eval $(call archive_template,$(lib))))
294$(foreach lib,$(filter %so.$(VERSION_MAJOR).$(VERSION_MINOR).$(VERSION_PATCH),$(LIBS)),$(eval $(call so_template,$(lib))))
295
296INSTALL-LIBS=$(call cond_enabled,CONFIG_INSTALL_LIBS,INSTALL-LIBS)
297ifeq ($(MAKECMDGOALS),dist)
298INSTALL-LIBS+=$(call cond_enabled,CONFIG_INSTALL_LIBS,DIST-LIBS)
299endif
300.install-libs: .libs $(addprefix $(DIST_DIR)/,$(INSTALL-LIBS))
301	@touch $@
302
303clean::
304	rm -f .libs .install-libs $(LIBS)
305
306ifeq ($(CONFIG_EXTERNAL_BUILD),yes)
307PROJECTS=$(call enabled,PROJECTS)
308.projects: $(PROJECTS)
309	@touch $@
310
311INSTALL-PROJECTS=$(call cond_enabled,CONFIG_INSTALL_PROJECTS,INSTALL-PROJECTS)
312ifeq ($(MAKECMDGOALS),dist)
313INSTALL-PROJECTS+=$(call cond_enabled,CONFIG_INSTALL_PROJECTS,DIST-PROJECTS)
314endif
315.install-projects: .projects $(addprefix $(DIST_DIR)/,$(INSTALL-PROJECTS))
316	@touch $@
317
318clean::
319	rm -f .projects .install-projects $(PROJECTS)
320endif
321
322# If there are any source files to be distributed, then include the build
323# system too.
324ifneq ($(call enabled,DIST-SRCS),)
325    DIST-SRCS-yes            += configure
326    DIST-SRCS-yes            += build/make/configure.sh
327    DIST-SRCS-yes            += build/make/gen_asm_deps.sh
328    DIST-SRCS-yes            += build/make/Makefile
329    DIST-SRCS-$(CONFIG_MSVS)  += build/make/gen_msvs_def.sh
330    DIST-SRCS-$(CONFIG_MSVS)  += build/make/gen_msvs_proj.sh
331    DIST-SRCS-$(CONFIG_MSVS)  += build/make/gen_msvs_sln.sh
332    DIST-SRCS-$(CONFIG_MSVS)  += build/x86-msvs/yasm.rules
333    DIST-SRCS-$(CONFIG_RVCT) += build/make/armlink_adapter.sh
334    #
335    # This isn't really ARCH_ARM dependent, it's dependant on whether we're
336    # using assembly code or not (CONFIG_OPTIMIZATIONS maybe). Just use
337    # this for now.
338    DIST-SRCS-$(ARCH_ARM)    += build/make/obj_int_extract.c
339    DIST-SRCS-$(ARCH_ARM)    += build/make/ads2gas.pl
340    DIST-SRCS-yes            += $(target:-$(TOOLCHAIN)=).mk
341endif
342INSTALL-SRCS := $(call cond_enabled,CONFIG_INSTALL_SRCS,INSTALL-SRCS)
343ifeq ($(MAKECMDGOALS),dist)
344INSTALL-SRCS += $(call cond_enabled,CONFIG_INSTALL_SRCS,DIST-SRCS)
345endif
346.install-srcs: $(addprefix $(DIST_DIR)/src/,$(INSTALL-SRCS))
347	@touch $@
348
349clean::
350	rm -f .install-srcs
351
352ifeq ($(CONFIG_EXTERNAL_BUILD),yes)
353    BUILD_TARGETS += .projects
354    INSTALL_TARGETS += .install-projects
355endif
356BUILD_TARGETS += .docs .libs .bins
357INSTALL_TARGETS += .install-docs .install-srcs .install-libs .install-bins
358all-$(target): $(BUILD_TARGETS)
359install:: $(INSTALL_TARGETS)
360dist: $(INSTALL_TARGETS)
361