tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1
2ifeq ($(src-perf),)
3src-perf := $(srctree)/tools/perf
4endif
5
6ifeq ($(obj-perf),)
7obj-perf := $(OUTPUT)
8endif
9
10ifneq ($(obj-perf),)
11obj-perf := $(abspath $(obj-perf))/
12endif
13
14LIB_INCLUDE := $(srctree)/tools/lib/
15CFLAGS := $(EXTRA_CFLAGS) $(EXTRA_WARNINGS)
16
17include $(src-perf)/config/Makefile.arch
18
19NO_PERF_REGS := 1
20
21# Additional ARCH settings for x86
22ifeq ($(ARCH),x86)
23 ifeq (${IS_X86_64}, 1)
24 CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT
25 ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
26 LIBUNWIND_LIBS = -lunwind -lunwind-x86_64
27 else
28 LIBUNWIND_LIBS = -lunwind -lunwind-x86
29 endif
30 NO_PERF_REGS := 0
31endif
32ifeq ($(ARCH),arm)
33 NO_PERF_REGS := 0
34 LIBUNWIND_LIBS = -lunwind -lunwind-arm
35endif
36
37# So far there's only x86 libdw unwind support merged in perf.
38# Disable it on all other architectures in case libdw unwind
39# support is detected in system. Add supported architectures
40# to the check.
41ifneq ($(ARCH),x86)
42 NO_LIBDW_DWARF_UNWIND := 1
43endif
44
45ifeq ($(LIBUNWIND_LIBS),)
46 NO_LIBUNWIND := 1
47else
48 #
49 # For linking with debug library, run like:
50 #
51 # make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
52 #
53 ifdef LIBUNWIND_DIR
54 LIBUNWIND_CFLAGS = -I$(LIBUNWIND_DIR)/include
55 LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
56 endif
57 LIBUNWIND_LDFLAGS += $(LIBUNWIND_LIBS)
58
59 # Set per-feature check compilation flags
60 FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
61 FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS)
62 FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
63 FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS)
64endif
65
66ifeq ($(NO_PERF_REGS),0)
67 CFLAGS += -DHAVE_PERF_REGS_SUPPORT
68endif
69
70ifndef NO_LIBELF
71 # for linking with debug library, run like:
72 # make DEBUG=1 LIBDW_DIR=/opt/libdw/
73 ifdef LIBDW_DIR
74 LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
75 LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
76 endif
77 FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
78 FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) -ldw
79endif
80
81# include ARCH specific config
82-include $(src-perf)/arch/$(ARCH)/Makefile
83
84include $(src-perf)/config/utilities.mak
85
86ifeq ($(call get-executable,$(FLEX)),)
87 dummy := $(error Error: $(FLEX) is missing on this system, please install it)
88endif
89
90ifeq ($(call get-executable,$(BISON)),)
91 dummy := $(error Error: $(BISON) is missing on this system, please install it)
92endif
93
94# Treat warnings as errors unless directed not to
95ifneq ($(WERROR),0)
96 CFLAGS += -Werror
97endif
98
99ifndef DEBUG
100 DEBUG := 0
101endif
102
103ifeq ($(DEBUG),0)
104 CFLAGS += -O6
105endif
106
107ifdef PARSER_DEBUG
108 PARSER_DEBUG_BISON := -t
109 PARSER_DEBUG_FLEX := -d
110 CFLAGS += -DPARSER_DEBUG
111endif
112
113CFLAGS += -fno-omit-frame-pointer
114CFLAGS += -ggdb3
115CFLAGS += -funwind-tables
116CFLAGS += -Wall
117CFLAGS += -Wextra
118CFLAGS += -std=gnu99
119
120# Enforce a non-executable stack, as we may regress (again) in the future by
121# adding assembler files missing the .GNU-stack linker note.
122LDFLAGS += -Wl,-z,noexecstack
123
124EXTLIBS = -lelf -lpthread -lrt -lm -ldl
125
126ifneq ($(OUTPUT),)
127 OUTPUT_FEATURES = $(OUTPUT)config/feature-checks/
128 $(shell mkdir -p $(OUTPUT_FEATURES))
129endif
130
131feature_check = $(eval $(feature_check_code))
132define feature_check_code
133 feature-$(1) := $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS) $(FEATURE_CHECK_CFLAGS-$(1))" LDFLAGS="$(LDFLAGS) $(FEATURE_CHECK_LDFLAGS-$(1))" -C config/feature-checks test-$1.bin >/dev/null 2>/dev/null && echo 1 || echo 0)
134endef
135
136feature_set = $(eval $(feature_set_code))
137define feature_set_code
138 feature-$(1) := 1
139endef
140
141#
142# Build the feature check binaries in parallel, ignore errors, ignore return value and suppress output:
143#
144
145#
146# Note that this is not a complete list of all feature tests, just
147# those that are typically built on a fully configured system.
148#
149# [ Feature tests not mentioned here have to be built explicitly in
150# the rule that uses them - an example for that is the 'bionic'
151# feature check. ]
152#
153CORE_FEATURE_TESTS = \
154 backtrace \
155 dwarf \
156 fortify-source \
157 glibc \
158 gtk2 \
159 gtk2-infobar \
160 libaudit \
161 libbfd \
162 libelf \
163 libelf-getphdrnum \
164 libelf-mmap \
165 libnuma \
166 libperl \
167 libpython \
168 libpython-version \
169 libslang \
170 libunwind \
171 on-exit \
172 stackprotector-all \
173 timerfd \
174 libdw-dwarf-unwind
175
176LIB_FEATURE_TESTS = \
177 dwarf \
178 glibc \
179 gtk2 \
180 libaudit \
181 libbfd \
182 libelf \
183 libnuma \
184 libperl \
185 libpython \
186 libslang \
187 libunwind \
188 libdw-dwarf-unwind
189
190VF_FEATURE_TESTS = \
191 backtrace \
192 fortify-source \
193 gtk2-infobar \
194 libelf-getphdrnum \
195 libelf-mmap \
196 libpython-version \
197 on-exit \
198 stackprotector-all \
199 timerfd \
200 libunwind-debug-frame \
201 bionic \
202 liberty \
203 liberty-z \
204 cplus-demangle
205
206# Set FEATURE_CHECK_(C|LD)FLAGS-all for all CORE_FEATURE_TESTS features.
207# If in the future we need per-feature checks/flags for features not
208# mentioned in this list we need to refactor this ;-).
209set_test_all_flags = $(eval $(set_test_all_flags_code))
210define set_test_all_flags_code
211 FEATURE_CHECK_CFLAGS-all += $(FEATURE_CHECK_CFLAGS-$(1))
212 FEATURE_CHECK_LDFLAGS-all += $(FEATURE_CHECK_LDFLAGS-$(1))
213endef
214
215$(foreach feat,$(CORE_FEATURE_TESTS),$(call set_test_all_flags,$(feat)))
216
217#
218# Special fast-path for the 'all features are available' case:
219#
220$(call feature_check,all,$(MSG))
221
222#
223# Just in case the build freshly failed, make sure we print the
224# feature matrix:
225#
226ifeq ($(feature-all), 1)
227 #
228 # test-all.c passed - just set all the core feature flags to 1:
229 #
230 $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_set,$(feat)))
231else
232 $(shell $(MAKE) OUTPUT=$(OUTPUT_FEATURES) CFLAGS="$(EXTRA_CFLAGS)" LDFLAGS=$(LDFLAGS) -i -j -C config/feature-checks $(addsuffix .bin,$(CORE_FEATURE_TESTS)) >/dev/null 2>&1)
233 $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_check,$(feat)))
234endif
235
236ifeq ($(feature-stackprotector-all), 1)
237 CFLAGS += -fstack-protector-all
238endif
239
240ifeq ($(DEBUG),0)
241 ifeq ($(feature-fortify-source), 1)
242 CFLAGS += -D_FORTIFY_SOURCE=2
243 endif
244endif
245
246CFLAGS += -I$(src-perf)/util/include
247CFLAGS += -I$(src-perf)/arch/$(ARCH)/include
248CFLAGS += -I$(srctree)/tools/include/
249CFLAGS += -I$(srctree)/arch/$(ARCH)/include/uapi
250CFLAGS += -I$(srctree)/arch/$(ARCH)/include
251CFLAGS += -I$(srctree)/include/uapi
252CFLAGS += -I$(srctree)/include
253
254# $(obj-perf) for generated common-cmds.h
255# $(obj-perf)/util for generated bison/flex headers
256ifneq ($(OUTPUT),)
257CFLAGS += -I$(obj-perf)/util
258CFLAGS += -I$(obj-perf)
259endif
260
261CFLAGS += -I$(src-perf)/util
262CFLAGS += -I$(src-perf)
263CFLAGS += -I$(LIB_INCLUDE)
264
265CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
266
267ifndef NO_BIONIC
268 $(call feature_check,bionic)
269 ifeq ($(feature-bionic), 1)
270 BIONIC := 1
271 EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
272 EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
273 endif
274endif
275
276ifdef NO_LIBELF
277 NO_DWARF := 1
278 NO_DEMANGLE := 1
279 NO_LIBUNWIND := 1
280 NO_LIBDW_DWARF_UNWIND := 1
281else
282 ifeq ($(feature-libelf), 0)
283 ifeq ($(feature-glibc), 1)
284 LIBC_SUPPORT := 1
285 endif
286 ifeq ($(BIONIC),1)
287 LIBC_SUPPORT := 1
288 endif
289 ifeq ($(LIBC_SUPPORT),1)
290 msg := $(warning No libelf found, disables 'probe' tool, please install elfutils-libelf-devel/libelf-dev);
291
292 NO_LIBELF := 1
293 NO_DWARF := 1
294 NO_DEMANGLE := 1
295 NO_LIBUNWIND := 1
296 NO_LIBDW_DWARF_UNWIND := 1
297 else
298 msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]/glibc-static);
299 endif
300 else
301 ifndef NO_LIBDW_DWARF_UNWIND
302 ifneq ($(feature-libdw-dwarf-unwind),1)
303 NO_LIBDW_DWARF_UNWIND := 1
304 msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
305 endif
306 endif
307 ifneq ($(feature-dwarf), 1)
308 msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
309 NO_DWARF := 1
310 endif # Dwarf support
311 endif # libelf support
312endif # NO_LIBELF
313
314ifndef NO_LIBELF
315 CFLAGS += -DHAVE_LIBELF_SUPPORT
316
317 ifeq ($(feature-libelf-mmap), 1)
318 CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
319 endif
320
321 ifeq ($(feature-libelf-getphdrnum), 1)
322 CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
323 endif
324
325 # include ARCH specific config
326 -include $(src-perf)/arch/$(ARCH)/Makefile
327
328 ifndef NO_DWARF
329 ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
330 msg := $(warning DWARF register mappings have not been defined for architecture $(ARCH), DWARF support disabled);
331 NO_DWARF := 1
332 else
333 CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
334 LDFLAGS += $(LIBDW_LDFLAGS)
335 EXTLIBS += -lelf -ldw
336 endif # PERF_HAVE_DWARF_REGS
337 endif # NO_DWARF
338endif # NO_LIBELF
339
340ifndef NO_LIBUNWIND
341 ifneq ($(feature-libunwind), 1)
342 msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
343 NO_LIBUNWIND := 1
344 endif
345endif
346
347dwarf-post-unwind := 1
348dwarf-post-unwind-text := BUG
349
350# setup DWARF post unwinder
351ifdef NO_LIBUNWIND
352 ifdef NO_LIBDW_DWARF_UNWIND
353 msg := $(warning Disabling post unwind, no support found.);
354 dwarf-post-unwind := 0
355 else
356 dwarf-post-unwind-text := libdw
357 endif
358else
359 dwarf-post-unwind-text := libunwind
360 # Enable libunwind support by default.
361 ifndef NO_LIBDW_DWARF_UNWIND
362 NO_LIBDW_DWARF_UNWIND := 1
363 endif
364endif
365
366ifeq ($(dwarf-post-unwind),1)
367 CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
368else
369 NO_DWARF_UNWIND := 1
370endif
371
372ifndef NO_LIBUNWIND
373 ifeq ($(ARCH),arm)
374 $(call feature_check,libunwind-debug-frame)
375 ifneq ($(feature-libunwind-debug-frame), 1)
376 msg := $(warning No debug_frame support found in libunwind);
377 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
378 endif
379 else
380 # non-ARM has no dwarf_find_debug_frame() function:
381 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
382 endif
383 CFLAGS += -DHAVE_LIBUNWIND_SUPPORT
384 EXTLIBS += $(LIBUNWIND_LIBS)
385 CFLAGS += $(LIBUNWIND_CFLAGS)
386 LDFLAGS += $(LIBUNWIND_LDFLAGS)
387endif
388
389ifndef NO_LIBAUDIT
390 ifneq ($(feature-libaudit), 1)
391 msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
392 NO_LIBAUDIT := 1
393 else
394 CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
395 EXTLIBS += -laudit
396 endif
397endif
398
399ifdef NO_NEWT
400 NO_SLANG=1
401endif
402
403ifndef NO_SLANG
404 ifneq ($(feature-libslang), 1)
405 msg := $(warning slang not found, disables TUI support. Please install slang-devel or libslang-dev);
406 NO_SLANG := 1
407 else
408 # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
409 CFLAGS += -I/usr/include/slang
410 CFLAGS += -DHAVE_SLANG_SUPPORT
411 EXTLIBS += -lslang
412 endif
413endif
414
415ifndef NO_GTK2
416 FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
417 ifneq ($(feature-gtk2), 1)
418 msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
419 NO_GTK2 := 1
420 else
421 ifeq ($(feature-gtk2-infobar), 1)
422 GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
423 endif
424 CFLAGS += -DHAVE_GTK2_SUPPORT
425 GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
426 GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
427 EXTLIBS += -ldl
428 endif
429endif
430
431grep-libs = $(filter -l%,$(1))
432strip-libs = $(filter-out -l%,$(1))
433
434ifdef NO_LIBPERL
435 CFLAGS += -DNO_LIBPERL
436else
437 PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
438 PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
439 PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
440 PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
441 FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
442
443 ifneq ($(feature-libperl), 1)
444 CFLAGS += -DNO_LIBPERL
445 NO_LIBPERL := 1
446 else
447 LDFLAGS += $(PERL_EMBED_LDFLAGS)
448 EXTLIBS += $(PERL_EMBED_LIBADD)
449 endif
450endif
451
452ifeq ($(feature-timerfd), 1)
453 CFLAGS += -DHAVE_TIMERFD_SUPPORT
454else
455 msg := $(warning No timerfd support. Disables 'perf kvm stat live');
456endif
457
458disable-python = $(eval $(disable-python_code))
459define disable-python_code
460 CFLAGS += -DNO_LIBPYTHON
461 $(if $(1),$(warning No $(1) was found))
462 $(warning Python support will not be built)
463 NO_LIBPYTHON := 1
464endef
465
466override PYTHON := \
467 $(call get-executable-or-default,PYTHON,python)
468
469ifndef PYTHON
470 $(call disable-python,python interpreter)
471else
472
473 PYTHON_WORD := $(call shell-wordify,$(PYTHON))
474
475 ifdef NO_LIBPYTHON
476 $(call disable-python)
477 else
478
479 override PYTHON_CONFIG := \
480 $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON)-config)
481
482 ifndef PYTHON_CONFIG
483 $(call disable-python,python-config tool)
484 else
485
486 PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
487
488 PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
489 PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
490 PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS))
491 PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
492 FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
493
494 ifneq ($(feature-libpython), 1)
495 $(call disable-python,Python.h (for Python 2.x))
496 else
497
498 ifneq ($(feature-libpython-version), 1)
499 $(warning Python 3 is not yet supported; please set)
500 $(warning PYTHON and/or PYTHON_CONFIG appropriately.)
501 $(warning If you also have Python 2 installed, then)
502 $(warning try something like:)
503 $(warning $(and ,))
504 $(warning $(and ,) make PYTHON=python2)
505 $(warning $(and ,))
506 $(warning Otherwise, disable Python support entirely:)
507 $(warning $(and ,))
508 $(warning $(and ,) make NO_LIBPYTHON=1)
509 $(warning $(and ,))
510 $(error $(and ,))
511 else
512 LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
513 EXTLIBS += $(PYTHON_EMBED_LIBADD)
514 LANG_BINDINGS += $(obj-perf)python/perf.so
515 endif
516 endif
517 endif
518 endif
519endif
520
521ifeq ($(feature-libbfd), 1)
522 EXTLIBS += -lbfd
523
524 # call all detections now so we get correct
525 # status in VF output
526 $(call feature_check,liberty)
527 $(call feature_check,liberty-z)
528 $(call feature_check,cplus-demangle)
529
530 ifeq ($(feature-liberty), 1)
531 EXTLIBS += -liberty
532 else
533 ifeq ($(feature-liberty-z), 1)
534 EXTLIBS += -liberty -lz
535 endif
536 endif
537endif
538
539ifdef NO_DEMANGLE
540 CFLAGS += -DNO_DEMANGLE
541else
542 ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
543 EXTLIBS += -liberty
544 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
545 else
546 ifneq ($(feature-libbfd), 1)
547 ifneq ($(feature-liberty), 1)
548 ifneq ($(feature-liberty-z), 1)
549 # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
550 # or any of 'bfd iberty z' trinity
551 ifeq ($(feature-cplus-demangle), 1)
552 EXTLIBS += -liberty
553 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
554 else
555 msg := $(warning No bfd.h/libbfd found, install binutils-dev[el]/zlib-static to gain symbol demangling)
556 CFLAGS += -DNO_DEMANGLE
557 endif
558 endif
559 endif
560 endif
561 endif
562endif
563
564ifneq ($(filter -lbfd,$(EXTLIBS)),)
565 CFLAGS += -DHAVE_LIBBFD_SUPPORT
566endif
567
568ifndef NO_ON_EXIT
569 ifeq ($(feature-on-exit), 1)
570 CFLAGS += -DHAVE_ON_EXIT_SUPPORT
571 endif
572endif
573
574ifndef NO_BACKTRACE
575 ifeq ($(feature-backtrace), 1)
576 CFLAGS += -DHAVE_BACKTRACE_SUPPORT
577 endif
578endif
579
580ifndef NO_LIBNUMA
581 ifeq ($(feature-libnuma), 0)
582 msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
583 NO_LIBNUMA := 1
584 else
585 CFLAGS += -DHAVE_LIBNUMA_SUPPORT
586 EXTLIBS += -lnuma
587 endif
588endif
589
590# Among the variables below, these:
591# perfexecdir
592# template_dir
593# mandir
594# infodir
595# htmldir
596# ETC_PERFCONFIG (but not sysconfdir)
597# can be specified as a relative path some/where/else;
598# this is interpreted as relative to $(prefix) and "perf" at
599# runtime figures out where they are based on the path to the executable.
600# This can help installing the suite in a relocatable way.
601
602# Make the path relative to DESTDIR, not to prefix
603ifndef DESTDIR
604prefix = $(HOME)
605endif
606bindir_relative = bin
607bindir = $(prefix)/$(bindir_relative)
608mandir = share/man
609infodir = share/info
610perfexecdir = libexec/perf-core
611sharedir = $(prefix)/share
612template_dir = share/perf-core/templates
613htmldir = share/doc/perf-doc
614ifeq ($(prefix),/usr)
615sysconfdir = /etc
616ETC_PERFCONFIG = $(sysconfdir)/perfconfig
617else
618sysconfdir = $(prefix)/etc
619ETC_PERFCONFIG = etc/perfconfig
620endif
621ifeq ($(IS_X86_64),1)
622lib = lib64
623else
624lib = lib
625endif
626libdir = $(prefix)/$(lib)
627
628# Shell quote (do not use $(call) to accommodate ancient setups);
629ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
630DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
631bindir_SQ = $(subst ','\'',$(bindir))
632mandir_SQ = $(subst ','\'',$(mandir))
633infodir_SQ = $(subst ','\'',$(infodir))
634perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
635template_dir_SQ = $(subst ','\'',$(template_dir))
636htmldir_SQ = $(subst ','\'',$(htmldir))
637prefix_SQ = $(subst ','\'',$(prefix))
638sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
639libdir_SQ = $(subst ','\'',$(libdir))
640
641ifneq ($(filter /%,$(firstword $(perfexecdir))),)
642perfexec_instdir = $(perfexecdir)
643else
644perfexec_instdir = $(prefix)/$(perfexecdir)
645endif
646perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
647
648# If we install to $(HOME) we keep the traceevent default:
649# $(HOME)/.traceevent/plugins
650# Otherwise we install plugins into the global $(libdir).
651ifdef DESTDIR
652plugindir=$(libdir)/traceevent/plugins
653plugindir_SQ= $(subst ','\'',$(plugindir))
654endif
655
656#
657# Print the result of the feature test:
658#
659feature_print_status = $(eval $(feature_print_status_code)) $(info $(MSG))
660
661define feature_print_status_code
662 ifeq ($(feature-$(1)), 1)
663 MSG = $(shell printf '...%30s: [ \033[32mon\033[m ]' $(1))
664 else
665 MSG = $(shell printf '...%30s: [ \033[31mOFF\033[m ]' $(1))
666 endif
667endef
668
669feature_print_var = $(eval $(feature_print_var_code)) $(info $(MSG))
670define feature_print_var_code
671 MSG = $(shell printf '...%30s: %s' $(1) $($(1)))
672endef
673
674feature_print_text = $(eval $(feature_print_text_code)) $(info $(MSG))
675define feature_print_text_code
676 MSG = $(shell printf '...%30s: %s' $(1) $(2))
677endef
678
679PERF_FEATURES := $(foreach feat,$(LIB_FEATURE_TESTS),feature-$(feat)($(feature-$(feat))))
680PERF_FEATURES_FILE := $(shell touch $(OUTPUT)PERF-FEATURES; cat $(OUTPUT)PERF-FEATURES)
681
682ifeq ($(dwarf-post-unwind),1)
683 PERF_FEATURES += dwarf-post-unwind($(dwarf-post-unwind-text))
684endif
685
686# The $(display_lib) controls the default detection message
687# output. It's set if:
688# - detected features differes from stored features from
689# last build (in PERF-FEATURES file)
690# - one of the $(LIB_FEATURE_TESTS) is not detected
691# - VF is enabled
692
693ifneq ("$(PERF_FEATURES)","$(PERF_FEATURES_FILE)")
694 $(shell echo "$(PERF_FEATURES)" > $(OUTPUT)PERF-FEATURES)
695 display_lib := 1
696endif
697
698feature_check = $(eval $(feature_check_code))
699define feature_check_code
700 ifneq ($(feature-$(1)), 1)
701 display_lib := 1
702 endif
703endef
704
705$(foreach feat,$(LIB_FEATURE_TESTS),$(call feature_check,$(feat)))
706
707ifeq ($(VF),1)
708 display_lib := 1
709 display_vf := 1
710endif
711
712ifeq ($(display_lib),1)
713 $(info )
714 $(info Auto-detecting system features:)
715 $(foreach feat,$(LIB_FEATURE_TESTS),$(call feature_print_status,$(feat),))
716
717 ifeq ($(dwarf-post-unwind),1)
718 $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
719 endif
720endif
721
722ifeq ($(display_vf),1)
723 $(foreach feat,$(VF_FEATURE_TESTS),$(call feature_print_status,$(feat),))
724 $(info )
725 $(call feature_print_var,prefix)
726 $(call feature_print_var,bindir)
727 $(call feature_print_var,libdir)
728 $(call feature_print_var,sysconfdir)
729 $(call feature_print_var,LIBUNWIND_DIR)
730 $(call feature_print_var,LIBDW_DIR)
731endif
732
733ifeq ($(display_lib),1)
734 $(info )
735endif