blob: c71a05b9c984f8b38dda2f201caf90ae15fcef52 [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 $(feature_check_code))
9define feature_check_code
Wang Nan87095f72016-09-26 07:26:56 +000010 feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS) $(FEATURE_CHECK_CFLAGS-$(1))" CXXFLAGS="$(EXTRA_CXXFLAGS) $(FEATURE_CHECK_CXXFLAGS-$(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#
Jiri Olsa2fedf792016-12-04 21:42:53 +010030FEATURE_TESTS_BASIC := \
31 backtrace \
32 dwarf \
33 dwarf_getlocations \
34 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-gelf_getnote \
44 libelf-getshdrstrndx \
45 libelf-mmap \
46 libnuma \
47 numa_num_possible_cpus \
48 libperl \
49 libpython \
50 libpython-version \
51 libslang \
52 libcrypto \
53 libunwind \
54 libunwind-x86 \
55 libunwind-x86_64 \
56 libunwind-arm \
57 libunwind-aarch64 \
58 pthread-attr-setaffinity-np \
59 stackprotector-all \
60 timerfd \
61 libdw-dwarf-unwind \
62 zlib \
63 lzma \
64 get_cpuid \
65 bpf \
Arnaldo Carvalho de Melo120010c2017-03-02 12:55:49 -030066 sched_getcpu \
Arnaldo Carvalho de Melo86bcdb52017-07-18 17:15:29 -030067 sdt \
68 setns
Jiri Olsa0afc5ca2015-03-01 21:04:01 +010069
Wang Nan9fd41862016-01-25 09:55:50 +000070# FEATURE_TESTS_BASIC + FEATURE_TESTS_EXTRA is the complete list
71# of all feature tests
Jiri Olsa2fedf792016-12-04 21:42:53 +010072FEATURE_TESTS_EXTRA := \
73 bionic \
74 compile-32 \
75 compile-x32 \
76 cplus-demangle \
77 hello \
78 libbabeltrace \
79 liberty \
80 liberty-z \
81 libunwind-debug-frame \
82 libunwind-debug-frame-arm \
83 libunwind-debug-frame-aarch64
Wang Nan9fd41862016-01-25 09:55:50 +000084
85FEATURE_TESTS ?= $(FEATURE_TESTS_BASIC)
86
87ifeq ($(FEATURE_TESTS),all)
88 FEATURE_TESTS := $(FEATURE_TESTS_BASIC) $(FEATURE_TESTS_EXTRA)
89endif
90
Jiri Olsa2fedf792016-12-04 21:42:53 +010091FEATURE_DISPLAY ?= \
92 dwarf \
93 dwarf_getlocations \
94 glibc \
95 gtk2 \
96 libaudit \
97 libbfd \
98 libelf \
99 libnuma \
100 numa_num_possible_cpus \
101 libperl \
102 libpython \
103 libslang \
104 libcrypto \
105 libunwind \
106 libdw-dwarf-unwind \
107 zlib \
108 lzma \
109 get_cpuid \
110 bpf
Jiri Olsa0afc5ca2015-03-01 21:04:01 +0100111
112# Set FEATURE_CHECK_(C|LD)FLAGS-all for all FEATURE_TESTS features.
113# If in the future we need per-feature checks/flags for features not
114# mentioned in this list we need to refactor this ;-).
115set_test_all_flags = $(eval $(set_test_all_flags_code))
116define set_test_all_flags_code
117 FEATURE_CHECK_CFLAGS-all += $(FEATURE_CHECK_CFLAGS-$(1))
118 FEATURE_CHECK_LDFLAGS-all += $(FEATURE_CHECK_LDFLAGS-$(1))
119endef
120
121$(foreach feat,$(FEATURE_TESTS),$(call set_test_all_flags,$(feat)))
122
123#
124# Special fast-path for the 'all features are available' case:
125#
126$(call feature_check,all,$(MSG))
127
128#
129# Just in case the build freshly failed, make sure we print the
130# feature matrix:
131#
132ifeq ($(feature-all), 1)
133 #
134 # test-all.c passed - just set all the core feature flags to 1:
135 #
136 $(foreach feat,$(FEATURE_TESTS),$(call feature_set,$(feat)))
Jiri Olsa76c4aae2016-01-28 16:13:24 -0300137 #
138 # test-all.c does not comprise these tests, so we need to
139 # for this case to get features proper values
140 #
141 $(call feature_check,compile-32)
142 $(call feature_check,compile-x32)
143 $(call feature_check,bionic)
144 $(call feature_check,libbabeltrace)
Jiri Olsa0afc5ca2015-03-01 21:04:01 +0100145else
Jiri Olsa0afc5ca2015-03-01 21:04:01 +0100146 $(foreach feat,$(FEATURE_TESTS),$(call feature_check,$(feat)))
147endif
148
149#
150# Print the result of the feature test:
151#
152feature_print_status = $(eval $(feature_print_status_code)) $(info $(MSG))
153
154define feature_print_status_code
155 ifeq ($(feature-$(1)), 1)
156 MSG = $(shell printf '...%30s: [ \033[32mon\033[m ]' $(1))
157 else
158 MSG = $(shell printf '...%30s: [ \033[31mOFF\033[m ]' $(1))
159 endif
160endef
161
162feature_print_text = $(eval $(feature_print_text_code)) $(info $(MSG))
163define feature_print_text_code
164 MSG = $(shell printf '...%30s: %s' $(1) $(2))
165endef
166
Jiri Olsac6a5f882015-12-23 18:58:32 +0100167#
168# generates feature value assignment for name, like:
169# $(call feature_assign,dwarf) == feature-dwarf=1
170#
171feature_assign = feature-$(1)=$(feature-$(1))
172
Arnaldo Carvalho de Melo13e96db2015-09-21 12:24:47 -0300173FEATURE_DUMP_FILENAME = $(OUTPUT)FEATURE-DUMP$(FEATURE_USER)
Jiri Olsa936d1202015-12-23 18:58:33 +0100174FEATURE_DUMP := $(shell touch $(FEATURE_DUMP_FILENAME); cat $(FEATURE_DUMP_FILENAME))
175
176feature_dump_check = $(eval $(feature_dump_check_code))
177define feature_dump_check_code
178 ifeq ($(findstring $(1),$(FEATURE_DUMP)),)
179 $(2) := 1
180 endif
181endef
182
183#
184# First check if any test from FEATURE_DISPLAY
185# and set feature_display := 1 if it does
186$(foreach feat,$(FEATURE_DISPLAY),$(call feature_dump_check,$(call feature_assign,$(feat)),feature_display))
187
188#
189# Now also check if any other test changed,
190# so we force FEATURE-DUMP generation
191$(foreach feat,$(FEATURE_TESTS),$(call feature_dump_check,$(call feature_assign,$(feat)),feature_dump_changed))
Jiri Olsa0afc5ca2015-03-01 21:04:01 +0100192
Jiri Olsa0afc5ca2015-03-01 21:04:01 +0100193# The $(feature_display) controls the default detection message
194# output. It's set if:
195# - detected features differes from stored features from
Arnaldo Carvalho de Melo13e96db2015-09-21 12:24:47 -0300196# last build (in $(FEATURE_DUMP_FILENAME) file)
Jiri Olsa0afc5ca2015-03-01 21:04:01 +0100197# - one of the $(FEATURE_DISPLAY) is not detected
198# - VF is enabled
199
Jiri Olsa936d1202015-12-23 18:58:33 +0100200ifeq ($(feature_dump_changed),1)
201 $(shell rm -f $(FEATURE_DUMP_FILENAME))
202 $(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))
Jiri Olsa0afc5ca2015-03-01 21:04:01 +0100203endif
204
Arnaldo Carvalho de Melo6076e2a2015-09-21 11:49:51 -0300205feature_display_check = $(eval $(feature_check_display_code))
Jiri Olsad0018b42015-12-23 18:58:30 +0100206define feature_check_display_code
Jiri Olsa0afc5ca2015-03-01 21:04:01 +0100207 ifneq ($(feature-$(1)), 1)
208 feature_display := 1
209 endif
210endef
211
212$(foreach feat,$(FEATURE_DISPLAY),$(call feature_display_check,$(feat)))
213
214ifeq ($(VF),1)
215 feature_display := 1
216 feature_verbose := 1
217endif
218
219ifeq ($(feature_display),1)
220 $(info )
221 $(info Auto-detecting system features:)
222 $(foreach feat,$(FEATURE_DISPLAY),$(call feature_print_status,$(feat),))
Jiri Olsa0afc5ca2015-03-01 21:04:01 +0100223 ifneq ($(feature_verbose),1)
224 $(info )
225 endif
226endif
227
228ifeq ($(feature_verbose),1)
229 TMP := $(filter-out $(FEATURE_DISPLAY),$(FEATURE_TESTS))
230 $(foreach feat,$(TMP),$(call feature_print_status,$(feat),))
231 $(info )
232endif