Commit | Line | Data |
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ec8f24b7 | 1 | # SPDX-License-Identifier: GPL-2.0-only |
e6c76d62 | 2 | feature_dir := $(srctree)/tools/build/feature |
970e87b3 | 3 | |
0afc5cad | 4 | ifneq ($(OUTPUT),) |
e6c76d62 | 5 | OUTPUT_FEATURES = $(OUTPUT)feature/ |
0afc5cad JO |
6 | $(shell mkdir -p $(OUTPUT_FEATURES)) |
7 | endif | |
8 | ||
9 | feature_check = $(eval $(feature_check_code)) | |
10 | define feature_check_code | |
fa5c8931 | 11 | feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CC="$(CC)" CXX="$(CXX)" 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) |
0afc5cad JO |
12 | endef |
13 | ||
14 | feature_set = $(eval $(feature_set_code)) | |
15 | define feature_set_code | |
16 | feature-$(1) := 1 | |
17 | endef | |
18 | ||
19 | # | |
20 | # Build the feature check binaries in parallel, ignore errors, ignore return value and suppress output: | |
21 | # | |
22 | ||
23 | # | |
24 | # Note that this is not a complete list of all feature tests, just | |
25 | # those that are typically built on a fully configured system. | |
26 | # | |
27 | # [ Feature tests not mentioned here have to be built explicitly in | |
28 | # the rule that uses them - an example for that is the 'bionic' | |
29 | # feature check. ] | |
30 | # | |
2fedf79b JO |
31 | FEATURE_TESTS_BASIC := \ |
32 | backtrace \ | |
33 | dwarf \ | |
34 | dwarf_getlocations \ | |
11c6cbe7 | 35 | eventfd \ |
2fedf79b | 36 | fortify-source \ |
8feb8efe | 37 | get_current_dir_name \ |
4541a8bb | 38 | gettid \ |
2fedf79b | 39 | glibc \ |
2fedf79b | 40 | libbfd \ |
e71e19a9 | 41 | libbfd-buildid \ |
74d5f3d0 | 42 | libcap \ |
2fedf79b JO |
43 | libelf \ |
44 | libelf-getphdrnum \ | |
45 | libelf-gelf_getnote \ | |
46 | libelf-getshdrstrndx \ | |
2fedf79b JO |
47 | libnuma \ |
48 | numa_num_possible_cpus \ | |
49 | libperl \ | |
50 | libpython \ | |
2fedf79b | 51 | libslang \ |
cbefd24f | 52 | libslang-include-subdir \ |
56d32d4c | 53 | libtraceevent \ |
b758a61b | 54 | libtracefs \ |
2fedf79b JO |
55 | libcrypto \ |
56 | libunwind \ | |
2fedf79b | 57 | pthread-attr-setaffinity-np \ |
25ab5abf | 58 | pthread-barrier \ |
db42a21a | 59 | reallocarray \ |
2fedf79b JO |
60 | stackprotector-all \ |
61 | timerfd \ | |
62 | libdw-dwarf-unwind \ | |
63 | zlib \ | |
64 | lzma \ | |
65 | get_cpuid \ | |
66 | bpf \ | |
120010cb | 67 | sched_getcpu \ |
86bcdb5a | 68 | sdt \ |
aa6292f4 | 69 | setns \ |
8a1b1718 | 70 | libaio \ |
3b1c5d96 | 71 | libzstd \ |
49f550ea NK |
72 | disassembler-four-args \ |
73 | file-handle | |
0afc5cad | 74 | |
9fd4186a WN |
75 | # FEATURE_TESTS_BASIC + FEATURE_TESTS_EXTRA is the complete list |
76 | # of all feature tests | |
2fedf79b JO |
77 | FEATURE_TESTS_EXTRA := \ |
78 | bionic \ | |
79 | compile-32 \ | |
80 | compile-x32 \ | |
81 | cplus-demangle \ | |
4751bddd ACM |
82 | gtk2 \ |
83 | gtk2-infobar \ | |
2fedf79b JO |
84 | hello \ |
85 | libbabeltrace \ | |
14541b1e SF |
86 | libbfd-liberty \ |
87 | libbfd-liberty-z \ | |
1c3b28fd | 88 | libopencsd \ |
5c4d7c82 ACM |
89 | libunwind-x86 \ |
90 | libunwind-x86_64 \ | |
91 | libunwind-arm \ | |
92 | libunwind-aarch64 \ | |
2fedf79b JO |
93 | libunwind-debug-frame \ |
94 | libunwind-debug-frame-arm \ | |
bd476684 JO |
95 | libunwind-debug-frame-aarch64 \ |
96 | cxx \ | |
97 | llvm \ | |
98 | llvm-version \ | |
7b65e203 | 99 | clang \ |
5ef86146 | 100 | libbpf \ |
0ae065a5 | 101 | libbpf-btf__load_from_kernel_by_id \ |
5c83eff3 | 102 | libbpf-bpf_prog_load \ |
8916d725 | 103 | libbpf-bpf_object__next_program \ |
739c9180 | 104 | libbpf-bpf_object__next_map \ |
c7a14fdc | 105 | libpfm4 \ |
fbcdaa19 SL |
106 | libdebuginfod \ |
107 | clang-bpf-co-re | |
108 | ||
9fd4186a WN |
109 | |
110 | FEATURE_TESTS ?= $(FEATURE_TESTS_BASIC) | |
111 | ||
112 | ifeq ($(FEATURE_TESTS),all) | |
113 | FEATURE_TESTS := $(FEATURE_TESTS_BASIC) $(FEATURE_TESTS_EXTRA) | |
114 | endif | |
115 | ||
2fedf79b JO |
116 | FEATURE_DISPLAY ?= \ |
117 | dwarf \ | |
118 | dwarf_getlocations \ | |
119 | glibc \ | |
2fedf79b | 120 | libbfd \ |
e71e19a9 | 121 | libbfd-buildid \ |
74d5f3d0 | 122 | libcap \ |
2fedf79b JO |
123 | libelf \ |
124 | libnuma \ | |
125 | numa_num_possible_cpus \ | |
126 | libperl \ | |
127 | libpython \ | |
2fedf79b JO |
128 | libcrypto \ |
129 | libunwind \ | |
130 | libdw-dwarf-unwind \ | |
131 | zlib \ | |
132 | lzma \ | |
133 | get_cpuid \ | |
2a07d814 | 134 | bpf \ |
8a1b1718 | 135 | libaio \ |
3b1c5d96 | 136 | libzstd \ |
8a1b1718 | 137 | disassembler-four-args |
0afc5cad JO |
138 | |
139 | # Set FEATURE_CHECK_(C|LD)FLAGS-all for all FEATURE_TESTS features. | |
140 | # If in the future we need per-feature checks/flags for features not | |
141 | # mentioned in this list we need to refactor this ;-). | |
142 | set_test_all_flags = $(eval $(set_test_all_flags_code)) | |
143 | define set_test_all_flags_code | |
144 | FEATURE_CHECK_CFLAGS-all += $(FEATURE_CHECK_CFLAGS-$(1)) | |
145 | FEATURE_CHECK_LDFLAGS-all += $(FEATURE_CHECK_LDFLAGS-$(1)) | |
146 | endef | |
147 | ||
148 | $(foreach feat,$(FEATURE_TESTS),$(call set_test_all_flags,$(feat))) | |
149 | ||
150 | # | |
151 | # Special fast-path for the 'all features are available' case: | |
152 | # | |
153 | $(call feature_check,all,$(MSG)) | |
154 | ||
155 | # | |
156 | # Just in case the build freshly failed, make sure we print the | |
157 | # feature matrix: | |
158 | # | |
159 | ifeq ($(feature-all), 1) | |
160 | # | |
161 | # test-all.c passed - just set all the core feature flags to 1: | |
162 | # | |
163 | $(foreach feat,$(FEATURE_TESTS),$(call feature_set,$(feat))) | |
76c4aaec JO |
164 | # |
165 | # test-all.c does not comprise these tests, so we need to | |
166 | # for this case to get features proper values | |
167 | # | |
168 | $(call feature_check,compile-32) | |
169 | $(call feature_check,compile-x32) | |
170 | $(call feature_check,bionic) | |
171 | $(call feature_check,libbabeltrace) | |
0afc5cad | 172 | else |
0afc5cad JO |
173 | $(foreach feat,$(FEATURE_TESTS),$(call feature_check,$(feat))) |
174 | endif | |
175 | ||
176 | # | |
177 | # Print the result of the feature test: | |
178 | # | |
179 | feature_print_status = $(eval $(feature_print_status_code)) $(info $(MSG)) | |
180 | ||
181 | define feature_print_status_code | |
182 | ifeq ($(feature-$(1)), 1) | |
183 | MSG = $(shell printf '...%30s: [ \033[32mon\033[m ]' $(1)) | |
184 | else | |
185 | MSG = $(shell printf '...%30s: [ \033[31mOFF\033[m ]' $(1)) | |
186 | endif | |
187 | endef | |
188 | ||
189 | feature_print_text = $(eval $(feature_print_text_code)) $(info $(MSG)) | |
190 | define feature_print_text_code | |
191 | MSG = $(shell printf '...%30s: %s' $(1) $(2)) | |
192 | endef | |
193 | ||
c6a5f88f JO |
194 | # |
195 | # generates feature value assignment for name, like: | |
196 | # $(call feature_assign,dwarf) == feature-dwarf=1 | |
197 | # | |
198 | feature_assign = feature-$(1)=$(feature-$(1)) | |
199 | ||
13e96db6 | 200 | FEATURE_DUMP_FILENAME = $(OUTPUT)FEATURE-DUMP$(FEATURE_USER) |
936d120d JO |
201 | FEATURE_DUMP := $(shell touch $(FEATURE_DUMP_FILENAME); cat $(FEATURE_DUMP_FILENAME)) |
202 | ||
203 | feature_dump_check = $(eval $(feature_dump_check_code)) | |
204 | define feature_dump_check_code | |
205 | ifeq ($(findstring $(1),$(FEATURE_DUMP)),) | |
206 | $(2) := 1 | |
207 | endif | |
208 | endef | |
209 | ||
210 | # | |
211 | # First check if any test from FEATURE_DISPLAY | |
212 | # and set feature_display := 1 if it does | |
213 | $(foreach feat,$(FEATURE_DISPLAY),$(call feature_dump_check,$(call feature_assign,$(feat)),feature_display)) | |
214 | ||
215 | # | |
216 | # Now also check if any other test changed, | |
217 | # so we force FEATURE-DUMP generation | |
218 | $(foreach feat,$(FEATURE_TESTS),$(call feature_dump_check,$(call feature_assign,$(feat)),feature_dump_changed)) | |
0afc5cad | 219 | |
0afc5cad JO |
220 | # The $(feature_display) controls the default detection message |
221 | # output. It's set if: | |
222 | # - detected features differes from stored features from | |
13e96db6 | 223 | # last build (in $(FEATURE_DUMP_FILENAME) file) |
0afc5cad JO |
224 | # - one of the $(FEATURE_DISPLAY) is not detected |
225 | # - VF is enabled | |
226 | ||
936d120d JO |
227 | ifeq ($(feature_dump_changed),1) |
228 | $(shell rm -f $(FEATURE_DUMP_FILENAME)) | |
229 | $(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME))) | |
0afc5cad JO |
230 | endif |
231 | ||
6076e2a4 | 232 | feature_display_check = $(eval $(feature_check_display_code)) |
d0018b49 | 233 | define feature_check_display_code |
0afc5cad JO |
234 | ifneq ($(feature-$(1)), 1) |
235 | feature_display := 1 | |
236 | endif | |
237 | endef | |
238 | ||
239 | $(foreach feat,$(FEATURE_DISPLAY),$(call feature_display_check,$(feat))) | |
240 | ||
241 | ifeq ($(VF),1) | |
242 | feature_display := 1 | |
243 | feature_verbose := 1 | |
244 | endif | |
245 | ||
19177bc3 ACM |
246 | feature_display_entries = $(eval $(feature_display_entries_code)) |
247 | define feature_display_entries_code | |
248 | ifeq ($(feature_display),1) | |
0afc5cad | 249 | $(info ) |
19177bc3 ACM |
250 | $(info Auto-detecting system features:) |
251 | $(foreach feat,$(FEATURE_DISPLAY),$(call feature_print_status,$(feat),)) | |
252 | ifneq ($(feature_verbose),1) | |
253 | $(info ) | |
254 | endif | |
0afc5cad | 255 | endif |
0afc5cad | 256 | |
19177bc3 ACM |
257 | ifeq ($(feature_verbose),1) |
258 | TMP := $(filter-out $(FEATURE_DISPLAY),$(FEATURE_TESTS)) | |
259 | $(foreach feat,$(TMP),$(call feature_print_status,$(feat),)) | |
260 | $(info ) | |
261 | endif | |
262 | endef | |
263 | ||
264 | ifeq ($(FEATURE_DISPLAY_DEFERRED),) | |
265 | $(call feature_display_entries) | |
0afc5cad | 266 | endif |