blob: 3a0b0ca2a28c1b0bcc6a568d6c7d3ee6ced8c627 [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 $(feature_check_code))
9define feature_check_code
Jiri Olsa970e87b2015-03-01 21:12:25 +010010 feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS) $(FEATURE_CHECK_CFLAGS-$(1))" LDFLAGS="$(LDFLAGS) $(FEATURE_CHECK_LDFLAGS-$(1))" -C $(feature_dir) 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#
30FEATURE_TESTS = \
31 backtrace \
32 dwarf \
33 fortify-source \
34 sync-compare-and-swap \
35 glibc \
36 gtk2 \
37 gtk2-infobar \
38 libaudit \
39 libbfd \
40 libelf \
41 libelf-getphdrnum \
42 libelf-mmap \
43 libnuma \
44 libperl \
45 libpython \
46 libpython-version \
47 libslang \
48 libunwind \
49 pthread-attr-setaffinity-np \
50 stackprotector-all \
51 timerfd \
52 libdw-dwarf-unwind \
Jiri Olsa6c6f0f62015-03-04 11:35:47 +010053 zlib \
54 lzma
Jiri Olsa0afc5ca2015-03-01 21:04:01 +010055
56FEATURE_DISPLAY = \
57 dwarf \
58 glibc \
59 gtk2 \
60 libaudit \
61 libbfd \
62 libelf \
63 libnuma \
64 libperl \
65 libpython \
66 libslang \
67 libunwind \
68 libdw-dwarf-unwind \
Jiri Olsa6c6f0f62015-03-04 11:35:47 +010069 zlib \
70 lzma
Jiri Olsa0afc5ca2015-03-01 21:04:01 +010071
72# Set FEATURE_CHECK_(C|LD)FLAGS-all for all FEATURE_TESTS features.
73# If in the future we need per-feature checks/flags for features not
74# mentioned in this list we need to refactor this ;-).
75set_test_all_flags = $(eval $(set_test_all_flags_code))
76define set_test_all_flags_code
77 FEATURE_CHECK_CFLAGS-all += $(FEATURE_CHECK_CFLAGS-$(1))
78 FEATURE_CHECK_LDFLAGS-all += $(FEATURE_CHECK_LDFLAGS-$(1))
79endef
80
81$(foreach feat,$(FEATURE_TESTS),$(call set_test_all_flags,$(feat)))
82
83#
84# Special fast-path for the 'all features are available' case:
85#
86$(call feature_check,all,$(MSG))
87
88#
89# Just in case the build freshly failed, make sure we print the
90# feature matrix:
91#
92ifeq ($(feature-all), 1)
93 #
94 # test-all.c passed - just set all the core feature flags to 1:
95 #
96 $(foreach feat,$(FEATURE_TESTS),$(call feature_set,$(feat)))
97else
Jiri Olsa970e87b2015-03-01 21:12:25 +010098 $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS)" LDFLAGS=$(LDFLAGS) -i -j -C $(feature_dir) $(addsuffix .bin,$(FEATURE_TESTS)) >/dev/null 2>&1)
Jiri Olsa0afc5ca2015-03-01 21:04:01 +010099 $(foreach feat,$(FEATURE_TESTS),$(call feature_check,$(feat)))
100endif
101
102#
103# Print the result of the feature test:
104#
105feature_print_status = $(eval $(feature_print_status_code)) $(info $(MSG))
106
107define feature_print_status_code
108 ifeq ($(feature-$(1)), 1)
109 MSG = $(shell printf '...%30s: [ \033[32mon\033[m ]' $(1))
110 else
111 MSG = $(shell printf '...%30s: [ \033[31mOFF\033[m ]' $(1))
112 endif
113endef
114
115feature_print_text = $(eval $(feature_print_text_code)) $(info $(MSG))
116define feature_print_text_code
117 MSG = $(shell printf '...%30s: %s' $(1) $(2))
118endef
119
120FEATURE_DUMP := $(foreach feat,$(FEATURE_DISPLAY),feature-$(feat)($(feature-$(feat))))
121FEATURE_DUMP_FILE := $(shell touch $(OUTPUT)FEATURE-DUMP; cat $(OUTPUT)FEATURE-DUMP)
122
123ifeq ($(dwarf-post-unwind),1)
124 FEATURE_DUMP += dwarf-post-unwind($(dwarf-post-unwind-text))
125endif
126
127# The $(feature_display) controls the default detection message
128# output. It's set if:
129# - detected features differes from stored features from
130# last build (in FEATURE-DUMP file)
131# - one of the $(FEATURE_DISPLAY) is not detected
132# - VF is enabled
133
134ifneq ("$(FEATURE_DUMP)","$(FEATURE_DUMP_FILE)")
135 $(shell echo "$(FEATURE_DUMP)" > $(OUTPUT)FEATURE-DUMP)
136 feature_display := 1
137endif
138
139feature_display_check = $(eval $(feature_check_code))
140define feature_display_check_code
141 ifneq ($(feature-$(1)), 1)
142 feature_display := 1
143 endif
144endef
145
146$(foreach feat,$(FEATURE_DISPLAY),$(call feature_display_check,$(feat)))
147
148ifeq ($(VF),1)
149 feature_display := 1
150 feature_verbose := 1
151endif
152
153ifeq ($(feature_display),1)
154 $(info )
155 $(info Auto-detecting system features:)
156 $(foreach feat,$(FEATURE_DISPLAY),$(call feature_print_status,$(feat),))
157
158 ifeq ($(dwarf-post-unwind),1)
159 $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
160 endif
161
162 ifneq ($(feature_verbose),1)
163 $(info )
164 endif
165endif
166
167ifeq ($(feature_verbose),1)
168 TMP := $(filter-out $(FEATURE_DISPLAY),$(FEATURE_TESTS))
169 $(foreach feat,$(TMP),$(call feature_print_status,$(feat),))
170 $(info )
171endif