blob: 57c8f98874e833b7407c7000fe2fb8ff1253eb16 [file] [log] [blame]
Jiri Olsae6c76d62015-03-01 21:19:44 +01001feature_dir := $(srctree)/tools/build/feature
Jiri Olsa970e87b2015-03-01 21:12:25 +01002
Jiri Olsa0afc5ca2015-03-01 21:04:01 +01003ifneq ($(OUTPUT),)
Jiri Olsae6c76d62015-03-01 21:19:44 +01004 OUTPUT_FEATURES = $(OUTPUT)feature/
Jiri Olsa0afc5ca2015-03-01 21:04:01 +01005 $(shell mkdir -p $(OUTPUT_FEATURES))
6endif
7
8feature_check = $(eval $(feature_check_code))
9define feature_check_code
Josh Poimboeuf19254592015-12-15 09:39:32 -060010 feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS) $(FEATURE_CHECK_CFLAGS-$(1))" LDFLAGS="$(LDFLAGS) $(FEATURE_CHECK_LDFLAGS-$(1))" -C $(feature_dir) $(OUTPUT_FEATURES)test-$1.bin >/dev/null 2>/dev/null && echo 1 || echo 0)
Jiri Olsa0afc5ca2015-03-01 21:04:01 +010011endef
12
13feature_set = $(eval $(feature_set_code))
14define feature_set_code
15 feature-$(1) := 1
16endef
17
18#
19# Build the feature check binaries in parallel, ignore errors, ignore return value and suppress output:
20#
21
22#
23# Note that this is not a complete list of all feature tests, just
24# those that are typically built on a fully configured system.
25#
26# [ Feature tests not mentioned here have to be built explicitly in
27# the rule that uses them - an example for that is the 'bionic'
28# feature check. ]
29#
Wang Nan9fd41862016-01-25 09:55:50 +000030FEATURE_TESTS_BASIC := \
Jiri Olsa0afc5ca2015-03-01 21:04:01 +010031 backtrace \
32 dwarf \
Arnaldo Carvalho de Melobd0419e2016-04-05 11:33:41 -030033 dwarf_getlocations \
Jiri Olsa0afc5ca2015-03-01 21:04:01 +010034 fortify-source \
35 sync-compare-and-swap \
36 glibc \
37 gtk2 \
38 gtk2-infobar \
39 libaudit \
40 libbfd \
41 libelf \
42 libelf-getphdrnum \
43 libelf-mmap \
44 libnuma \
Arnaldo Carvalho de Melof8ac8602015-09-17 12:20:28 -030045 numa_num_possible_cpus \
Jiri Olsa0afc5ca2015-03-01 21:04:01 +010046 libperl \
47 libpython \
48 libpython-version \
49 libslang \
Stephane Eranian8ee46462015-11-30 10:02:21 +010050 libcrypto \
Jiri Olsa0afc5ca2015-03-01 21:04:01 +010051 libunwind \
He Kuangb1d96002016-05-10 07:40:31 +000052 libunwind-x86 \
53 libunwind-x86_64 \
54 libunwind-arm \
55 libunwind-aarch64 \
Jiri Olsa0afc5ca2015-03-01 21:04:01 +010056 pthread-attr-setaffinity-np \
57 stackprotector-all \
58 timerfd \
59 libdw-dwarf-unwind \
Jiri Olsa6c6f0f62015-03-04 11:35:47 +010060 zlib \
Arnaldo Carvalho de Melob0063db2015-09-17 12:54:30 -030061 lzma \
Wang Naned63f34c2015-10-14 12:41:12 +000062 get_cpuid \
63 bpf
Jiri Olsa0afc5ca2015-03-01 21:04:01 +010064
Wang Nan9fd41862016-01-25 09:55:50 +000065# FEATURE_TESTS_BASIC + FEATURE_TESTS_EXTRA is the complete list
66# of all feature tests
67FEATURE_TESTS_EXTRA := \
68 bionic \
69 compile-32 \
70 compile-x32 \
71 cplus-demangle \
72 hello \
73 libbabeltrace \
74 liberty \
75 liberty-z \
He Kuangf9be7ee2016-05-10 07:40:32 +000076 libunwind-debug-frame \
77 libunwind-debug-frame-arm \
78 libunwind-debug-frame-aarch64
Wang Nan9fd41862016-01-25 09:55:50 +000079
80FEATURE_TESTS ?= $(FEATURE_TESTS_BASIC)
81
82ifeq ($(FEATURE_TESTS),all)
83 FEATURE_TESTS := $(FEATURE_TESTS_BASIC) $(FEATURE_TESTS_EXTRA)
84endif
85
Wang Nan8135c8c2015-05-17 10:56:29 +000086FEATURE_DISPLAY ?= \
Jiri Olsa0afc5ca2015-03-01 21:04:01 +010087 dwarf \
Arnaldo Carvalho de Melobd0419e2016-04-05 11:33:41 -030088 dwarf_getlocations \
Jiri Olsa0afc5ca2015-03-01 21:04:01 +010089 glibc \
90 gtk2 \
91 libaudit \
92 libbfd \
93 libelf \
94 libnuma \
Arnaldo Carvalho de Melof8ac8602015-09-17 12:20:28 -030095 numa_num_possible_cpus \
Jiri Olsa0afc5ca2015-03-01 21:04:01 +010096 libperl \
97 libpython \
98 libslang \
Stephane Eranian8ee46462015-11-30 10:02:21 +010099 libcrypto \
Jiri Olsa0afc5ca2015-03-01 21:04:01 +0100100 libunwind \
101 libdw-dwarf-unwind \
Jiri Olsa6c6f0f62015-03-04 11:35:47 +0100102 zlib \
Arnaldo Carvalho de Melob0063db2015-09-17 12:54:30 -0300103 lzma \
Wang Naned63f34c2015-10-14 12:41:12 +0000104 get_cpuid \
105 bpf
Jiri Olsa0afc5ca2015-03-01 21:04:01 +0100106
107# Set FEATURE_CHECK_(C|LD)FLAGS-all for all FEATURE_TESTS features.
108# If in the future we need per-feature checks/flags for features not
109# mentioned in this list we need to refactor this ;-).
110set_test_all_flags = $(eval $(set_test_all_flags_code))
111define set_test_all_flags_code
112 FEATURE_CHECK_CFLAGS-all += $(FEATURE_CHECK_CFLAGS-$(1))
113 FEATURE_CHECK_LDFLAGS-all += $(FEATURE_CHECK_LDFLAGS-$(1))
114endef
115
116$(foreach feat,$(FEATURE_TESTS),$(call set_test_all_flags,$(feat)))
117
118#
119# Special fast-path for the 'all features are available' case:
120#
121$(call feature_check,all,$(MSG))
122
123#
124# Just in case the build freshly failed, make sure we print the
125# feature matrix:
126#
127ifeq ($(feature-all), 1)
128 #
129 # test-all.c passed - just set all the core feature flags to 1:
130 #
131 $(foreach feat,$(FEATURE_TESTS),$(call feature_set,$(feat)))
Jiri Olsa76c4aae2016-01-28 16:13:24 -0300132 #
133 # test-all.c does not comprise these tests, so we need to
134 # for this case to get features proper values
135 #
136 $(call feature_check,compile-32)
137 $(call feature_check,compile-x32)
138 $(call feature_check,bionic)
139 $(call feature_check,libbabeltrace)
Jiri Olsa0afc5ca2015-03-01 21:04:01 +0100140else
Jiri Olsa0afc5ca2015-03-01 21:04:01 +0100141 $(foreach feat,$(FEATURE_TESTS),$(call feature_check,$(feat)))
142endif
143
144#
145# Print the result of the feature test:
146#
147feature_print_status = $(eval $(feature_print_status_code)) $(info $(MSG))
148
149define feature_print_status_code
150 ifeq ($(feature-$(1)), 1)
151 MSG = $(shell printf '...%30s: [ \033[32mon\033[m ]' $(1))
152 else
153 MSG = $(shell printf '...%30s: [ \033[31mOFF\033[m ]' $(1))
154 endif
155endef
156
157feature_print_text = $(eval $(feature_print_text_code)) $(info $(MSG))
158define feature_print_text_code
159 MSG = $(shell printf '...%30s: %s' $(1) $(2))
160endef
161
Jiri Olsac6a5f882015-12-23 18:58:32 +0100162#
163# generates feature value assignment for name, like:
164# $(call feature_assign,dwarf) == feature-dwarf=1
165#
166feature_assign = feature-$(1)=$(feature-$(1))
167
Arnaldo Carvalho de Melo13e96db2015-09-21 12:24:47 -0300168FEATURE_DUMP_FILENAME = $(OUTPUT)FEATURE-DUMP$(FEATURE_USER)
Jiri Olsa936d1202015-12-23 18:58:33 +0100169FEATURE_DUMP := $(shell touch $(FEATURE_DUMP_FILENAME); cat $(FEATURE_DUMP_FILENAME))
170
171feature_dump_check = $(eval $(feature_dump_check_code))
172define feature_dump_check_code
173 ifeq ($(findstring $(1),$(FEATURE_DUMP)),)
174 $(2) := 1
175 endif
176endef
177
178#
179# First check if any test from FEATURE_DISPLAY
180# and set feature_display := 1 if it does
181$(foreach feat,$(FEATURE_DISPLAY),$(call feature_dump_check,$(call feature_assign,$(feat)),feature_display))
182
183#
184# Now also check if any other test changed,
185# so we force FEATURE-DUMP generation
186$(foreach feat,$(FEATURE_TESTS),$(call feature_dump_check,$(call feature_assign,$(feat)),feature_dump_changed))
Jiri Olsa0afc5ca2015-03-01 21:04:01 +0100187
Jiri Olsa0afc5ca2015-03-01 21:04:01 +0100188# The $(feature_display) controls the default detection message
189# output. It's set if:
190# - detected features differes from stored features from
Arnaldo Carvalho de Melo13e96db2015-09-21 12:24:47 -0300191# last build (in $(FEATURE_DUMP_FILENAME) file)
Jiri Olsa0afc5ca2015-03-01 21:04:01 +0100192# - one of the $(FEATURE_DISPLAY) is not detected
193# - VF is enabled
194
Jiri Olsa936d1202015-12-23 18:58:33 +0100195ifeq ($(feature_dump_changed),1)
196 $(shell rm -f $(FEATURE_DUMP_FILENAME))
197 $(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))
Jiri Olsa0afc5ca2015-03-01 21:04:01 +0100198endif
199
Arnaldo Carvalho de Melo6076e2a2015-09-21 11:49:51 -0300200feature_display_check = $(eval $(feature_check_display_code))
Jiri Olsad0018b42015-12-23 18:58:30 +0100201define feature_check_display_code
Jiri Olsa0afc5ca2015-03-01 21:04:01 +0100202 ifneq ($(feature-$(1)), 1)
203 feature_display := 1
204 endif
205endef
206
207$(foreach feat,$(FEATURE_DISPLAY),$(call feature_display_check,$(feat)))
208
209ifeq ($(VF),1)
210 feature_display := 1
211 feature_verbose := 1
212endif
213
214ifeq ($(feature_display),1)
215 $(info )
216 $(info Auto-detecting system features:)
217 $(foreach feat,$(FEATURE_DISPLAY),$(call feature_print_status,$(feat),))
Jiri Olsa0afc5ca2015-03-01 21:04:01 +0100218 ifneq ($(feature_verbose),1)
219 $(info )
220 endif
221endif
222
223ifeq ($(feature_verbose),1)
224 TMP := $(filter-out $(FEATURE_DISPLAY),$(FEATURE_TESTS))
225 $(foreach feat,$(TMP),$(call feature_print_status,$(feat),))
226 $(info )
227endif