Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
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 (${IS_64_BIT}, 1)
24 CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT
25 ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
26 LIBUNWIND_LIBS = -lunwind -lunwind-x86_64
27 else
28 LIBUNWIND_LIBS = -lunwind -lunwind-x86
29 endif
30 NO_PERF_REGS := 0
31endif
32
33ifeq ($(ARCH),arm)
34 NO_PERF_REGS := 0
35 LIBUNWIND_LIBS = -lunwind -lunwind-arm
36endif
37
38ifeq ($(ARCH),arm64)
39 NO_PERF_REGS := 0
40 LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
41endif
42
43# So far there's only x86 and arm libdw unwind support merged in perf.
44# Disable it on all other architectures in case libdw unwind
45# support is detected in system. Add supported architectures
46# to the check.
47ifneq ($(ARCH),$(filter $(ARCH),x86 arm))
48 NO_LIBDW_DWARF_UNWIND := 1
49endif
50
51ifeq ($(LIBUNWIND_LIBS),)
52 NO_LIBUNWIND := 1
53else
54 #
55 # For linking with debug library, run like:
56 #
57 # make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
58 #
59 ifdef LIBUNWIND_DIR
60 LIBUNWIND_CFLAGS = -I$(LIBUNWIND_DIR)/include
61 LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
62 endif
63 LIBUNWIND_LDFLAGS += $(LIBUNWIND_LIBS)
64
65 # Set per-feature check compilation flags
66 FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
67 FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS)
68 FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
69 FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS)
70endif
71
72ifeq ($(NO_PERF_REGS),0)
73 CFLAGS += -DHAVE_PERF_REGS_SUPPORT
74endif
75
76ifndef NO_LIBELF
77 # for linking with debug library, run like:
78 # make DEBUG=1 LIBDW_DIR=/opt/libdw/
79 ifdef LIBDW_DIR
80 LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
81 LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
82 endif
83 FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
84 FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) -ldw
85endif
86
87# include ARCH specific config
88-include $(src-perf)/arch/$(ARCH)/Makefile
89
90include $(src-perf)/config/utilities.mak
91
92ifeq ($(call get-executable,$(FLEX)),)
93 dummy := $(error Error: $(FLEX) is missing on this system, please install it)
94endif
95
96ifeq ($(call get-executable,$(BISON)),)
97 dummy := $(error Error: $(BISON) is missing on this system, please install it)
98endif
99
100# Treat warnings as errors unless directed not to
101ifneq ($(WERROR),0)
102 CFLAGS += -Werror
103endif
104
105ifndef DEBUG
106 DEBUG := 0
107endif
108
109ifeq ($(DEBUG),0)
110 CFLAGS += -O6
111endif
112
113ifdef PARSER_DEBUG
114 PARSER_DEBUG_BISON := -t
115 PARSER_DEBUG_FLEX := -d
116 CFLAGS += -DPARSER_DEBUG
117endif
118
119ifndef NO_LIBPYTHON
120 # Try different combinations to accommodate systems that only have
121 # python[2][-config] in weird combinations but always preferring
122 # python2 and python2-config as per pep-0394. If we catch a
123 # python[-config] in version 3, the version check will kill it.
124 PYTHON2 := $(if $(call get-executable,python2),python2,python)
125 override PYTHON := $(call get-executable-or-default,PYTHON,$(PYTHON2))
126 PYTHON2_CONFIG := \
127 $(if $(call get-executable,$(PYTHON)-config),$(PYTHON)-config,python-config)
128 override PYTHON_CONFIG := \
129 $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON2_CONFIG))
130
131 PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
132
133 PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
134 PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
135
136 FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
137 FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
138 FEATURE_CHECK_CFLAGS-libpython-version := $(PYTHON_EMBED_CCOPTS)
139 FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS)
140endif
141
142CFLAGS += -fno-omit-frame-pointer
143CFLAGS += -ggdb3
144CFLAGS += -funwind-tables
145CFLAGS += -Wall
146CFLAGS += -Wextra
147CFLAGS += -std=gnu99
148
149# Enforce a non-executable stack, as we may regress (again) in the future by
150# adding assembler files missing the .GNU-stack linker note.
151LDFLAGS += -Wl,-z,noexecstack
152
153EXTLIBS = -lpthread -lrt -lm -ldl
154
155ifneq ($(OUTPUT),)
156 OUTPUT_FEATURES = $(OUTPUT)config/feature-checks/
157 $(shell mkdir -p $(OUTPUT_FEATURES))
158endif
159
160feature_check = $(eval $(feature_check_code))
161define feature_check_code
162 feature-$(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)
163endef
164
165feature_set = $(eval $(feature_set_code))
166define feature_set_code
167 feature-$(1) := 1
168endef
169
170#
171# Build the feature check binaries in parallel, ignore errors, ignore return value and suppress output:
172#
173
174#
175# Note that this is not a complete list of all feature tests, just
176# those that are typically built on a fully configured system.
177#
178# [ Feature tests not mentioned here have to be built explicitly in
179# the rule that uses them - an example for that is the 'bionic'
180# feature check. ]
181#
182CORE_FEATURE_TESTS = \
183 backtrace \
184 dwarf \
185 fortify-source \
186 sync-compare-and-swap \
187 glibc \
188 gtk2 \
189 gtk2-infobar \
190 libaudit \
191 libbfd \
192 libelf \
193 libelf-getphdrnum \
194 libelf-mmap \
195 libnuma \
196 libperl \
197 libpython \
198 libpython-version \
199 libslang \
200 libunwind \
201 pthread-attr-setaffinity-np \
202 stackprotector-all \
203 timerfd \
204 libdw-dwarf-unwind \
205 zlib
206
207LIB_FEATURE_TESTS = \
208 dwarf \
209 glibc \
210 gtk2 \
211 libaudit \
212 libbfd \
213 libelf \
214 libnuma \
215 libperl \
216 libpython \
217 libslang \
218 libunwind \
219 libdw-dwarf-unwind \
220 zlib
221
222VF_FEATURE_TESTS = \
223 backtrace \
224 fortify-source \
225 sync-compare-and-swap \
226 gtk2-infobar \
227 libelf-getphdrnum \
228 libelf-mmap \
229 libpython-version \
230 pthread-attr-setaffinity-np \
231 stackprotector-all \
232 timerfd \
233 libunwind-debug-frame \
234 bionic \
235 liberty \
236 liberty-z \
237 cplus-demangle \
238 compile-32 \
239 compile-x32
240
241# Set FEATURE_CHECK_(C|LD)FLAGS-all for all CORE_FEATURE_TESTS features.
242# If in the future we need per-feature checks/flags for features not
243# mentioned in this list we need to refactor this ;-).
244set_test_all_flags = $(eval $(set_test_all_flags_code))
245define set_test_all_flags_code
246 FEATURE_CHECK_CFLAGS-all += $(FEATURE_CHECK_CFLAGS-$(1))
247 FEATURE_CHECK_LDFLAGS-all += $(FEATURE_CHECK_LDFLAGS-$(1))
248endef
249
250$(foreach feat,$(CORE_FEATURE_TESTS),$(call set_test_all_flags,$(feat)))
251
252#
253# Special fast-path for the 'all features are available' case:
254#
255$(call feature_check,all,$(MSG))
256
257#
258# Just in case the build freshly failed, make sure we print the
259# feature matrix:
260#
261ifeq ($(feature-all), 1)
262 #
263 # test-all.c passed - just set all the core feature flags to 1:
264 #
265 $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_set,$(feat)))
266else
267 $(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)
268 $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_check,$(feat)))
269endif
270
271ifeq ($(feature-stackprotector-all), 1)
272 CFLAGS += -fstack-protector-all
273endif
274
275ifeq ($(DEBUG),0)
276 ifeq ($(feature-fortify-source), 1)
277 CFLAGS += -D_FORTIFY_SOURCE=2
278 endif
279endif
280
281CFLAGS += -I$(src-perf)/util/include
282CFLAGS += -I$(src-perf)/arch/$(ARCH)/include
283CFLAGS += -I$(srctree)/tools/include/
284CFLAGS += -I$(srctree)/arch/$(ARCH)/include/uapi
285CFLAGS += -I$(srctree)/arch/$(ARCH)/include
286CFLAGS += -I$(srctree)/include/uapi
287CFLAGS += -I$(srctree)/include
288
289# $(obj-perf) for generated common-cmds.h
290# $(obj-perf)/util for generated bison/flex headers
291ifneq ($(OUTPUT),)
292CFLAGS += -I$(obj-perf)/util
293CFLAGS += -I$(obj-perf)
294endif
295
296CFLAGS += -I$(src-perf)/util
297CFLAGS += -I$(src-perf)
298CFLAGS += -I$(LIB_INCLUDE)
299
300CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
301
302ifeq ($(feature-sync-compare-and-swap), 1)
303 CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT
304endif
305
306ifeq ($(feature-pthread-attr-setaffinity-np), 1)
307 CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
308endif
309
310ifndef NO_BIONIC
311 $(call feature_check,bionic)
312 ifeq ($(feature-bionic), 1)
313 BIONIC := 1
314 EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
315 EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
316 endif
317endif
318
319ifdef NO_LIBELF
320 NO_DWARF := 1
321 NO_DEMANGLE := 1
322 NO_LIBUNWIND := 1
323 NO_LIBDW_DWARF_UNWIND := 1
324else
325 ifeq ($(feature-libelf), 0)
326 ifeq ($(feature-glibc), 1)
327 LIBC_SUPPORT := 1
328 endif
329 ifeq ($(BIONIC),1)
330 LIBC_SUPPORT := 1
331 endif
332 ifeq ($(LIBC_SUPPORT),1)
333 msg := $(warning No libelf found, disables 'probe' tool, please install elfutils-libelf-devel/libelf-dev);
334
335 NO_LIBELF := 1
336 NO_DWARF := 1
337 NO_DEMANGLE := 1
338 NO_LIBUNWIND := 1
339 NO_LIBDW_DWARF_UNWIND := 1
340 else
341 ifneq ($(filter s% -static%,$(LDFLAGS),),)
342 msg := $(error No static glibc found, please install glibc-static);
343 else
344 msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
345 endif
346 endif
347 else
348 ifndef NO_LIBDW_DWARF_UNWIND
349 ifneq ($(feature-libdw-dwarf-unwind),1)
350 NO_LIBDW_DWARF_UNWIND := 1
351 msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
352 endif
353 endif
354 ifneq ($(feature-dwarf), 1)
355 msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
356 NO_DWARF := 1
357 endif # Dwarf support
358 endif # libelf support
359endif # NO_LIBELF
360
361ifndef NO_LIBELF
362 CFLAGS += -DHAVE_LIBELF_SUPPORT
363 EXTLIBS += -lelf
364
365 ifeq ($(feature-libelf-mmap), 1)
366 CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
367 endif
368
369 ifeq ($(feature-libelf-getphdrnum), 1)
370 CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
371 endif
372
373 # include ARCH specific config
374 -include $(src-perf)/arch/$(ARCH)/Makefile
375
376 ifndef NO_DWARF
377 ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
378 msg := $(warning DWARF register mappings have not been defined for architecture $(ARCH), DWARF support disabled);
379 NO_DWARF := 1
380 else
381 CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
382 LDFLAGS += $(LIBDW_LDFLAGS)
383 EXTLIBS += -ldw
384 endif # PERF_HAVE_DWARF_REGS
385 endif # NO_DWARF
386endif # NO_LIBELF
387
388ifeq ($(ARCH),powerpc)
389 ifndef NO_DWARF
390 CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
391 endif
392endif
393
394ifndef NO_LIBUNWIND
395 ifneq ($(feature-libunwind), 1)
396 msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
397 NO_LIBUNWIND := 1
398 endif
399endif
400
401dwarf-post-unwind := 1
402dwarf-post-unwind-text := BUG
403
404# setup DWARF post unwinder
405ifdef NO_LIBUNWIND
406 ifdef NO_LIBDW_DWARF_UNWIND
407 msg := $(warning Disabling post unwind, no support found.);
408 dwarf-post-unwind := 0
409 else
410 dwarf-post-unwind-text := libdw
411 endif
412else
413 dwarf-post-unwind-text := libunwind
414 # Enable libunwind support by default.
415 ifndef NO_LIBDW_DWARF_UNWIND
416 NO_LIBDW_DWARF_UNWIND := 1
417 endif
418endif
419
420ifeq ($(dwarf-post-unwind),1)
421 CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
422else
423 NO_DWARF_UNWIND := 1
424endif
425
426ifndef NO_LIBUNWIND
427 ifeq ($(ARCH),$(filter $(ARCH),arm arm64))
428 $(call feature_check,libunwind-debug-frame)
429 ifneq ($(feature-libunwind-debug-frame), 1)
430 msg := $(warning No debug_frame support found in libunwind);
431 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
432 endif
433 else
434 # non-ARM has no dwarf_find_debug_frame() function:
435 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
436 endif
437 CFLAGS += -DHAVE_LIBUNWIND_SUPPORT
438 EXTLIBS += $(LIBUNWIND_LIBS)
439 CFLAGS += $(LIBUNWIND_CFLAGS)
440 LDFLAGS += $(LIBUNWIND_LDFLAGS)
441endif
442
443ifndef NO_LIBAUDIT
444 ifneq ($(feature-libaudit), 1)
445 msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
446 NO_LIBAUDIT := 1
447 else
448 CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
449 EXTLIBS += -laudit
450 endif
451endif
452
453ifdef NO_NEWT
454 NO_SLANG=1
455endif
456
457ifndef NO_SLANG
458 ifneq ($(feature-libslang), 1)
459 msg := $(warning slang not found, disables TUI support. Please install slang-devel or libslang-dev);
460 NO_SLANG := 1
461 else
462 # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
463 CFLAGS += -I/usr/include/slang
464 CFLAGS += -DHAVE_SLANG_SUPPORT
465 EXTLIBS += -lslang
466 endif
467endif
468
469ifndef NO_GTK2
470 FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
471 ifneq ($(feature-gtk2), 1)
472 msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
473 NO_GTK2 := 1
474 else
475 ifeq ($(feature-gtk2-infobar), 1)
476 GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
477 endif
478 CFLAGS += -DHAVE_GTK2_SUPPORT
479 GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
480 GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
481 EXTLIBS += -ldl
482 endif
483endif
484
485grep-libs = $(filter -l%,$(1))
486strip-libs = $(filter-out -l%,$(1))
487
488ifdef NO_LIBPERL
489 CFLAGS += -DNO_LIBPERL
490else
491 PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
492 PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
493 PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
494 PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
495 FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
496
497 ifneq ($(feature-libperl), 1)
498 CFLAGS += -DNO_LIBPERL
499 NO_LIBPERL := 1
500 msg := $(warning Missing perl devel files. Disabling perl scripting support, consider installing perl-ExtUtils-Embed);
501 else
502 LDFLAGS += $(PERL_EMBED_LDFLAGS)
503 EXTLIBS += $(PERL_EMBED_LIBADD)
504 endif
505endif
506
507ifeq ($(feature-timerfd), 1)
508 CFLAGS += -DHAVE_TIMERFD_SUPPORT
509else
510 msg := $(warning No timerfd support. Disables 'perf kvm stat live');
511endif
512
513disable-python = $(eval $(disable-python_code))
514define disable-python_code
515 CFLAGS += -DNO_LIBPYTHON
516 $(if $(1),$(warning No $(1) was found))
517 $(warning Python support will not be built)
518 NO_LIBPYTHON := 1
519endef
520
521ifdef NO_LIBPYTHON
522 $(call disable-python)
523else
524
525 ifndef PYTHON
526 $(call disable-python,python interpreter)
527 else
528 PYTHON_WORD := $(call shell-wordify,$(PYTHON))
529
530 ifndef PYTHON_CONFIG
531 $(call disable-python,python-config tool)
532 else
533
534 PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
535
536 PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
537 PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
538 PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS))
539 PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
540 FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
541
542 ifneq ($(feature-libpython), 1)
543 $(call disable-python,Python.h (for Python 2.x))
544 else
545
546 ifneq ($(feature-libpython-version), 1)
547 $(warning Python 3 is not yet supported; please set)
548 $(warning PYTHON and/or PYTHON_CONFIG appropriately.)
549 $(warning If you also have Python 2 installed, then)
550 $(warning try something like:)
551 $(warning $(and ,))
552 $(warning $(and ,) make PYTHON=python2)
553 $(warning $(and ,))
554 $(warning Otherwise, disable Python support entirely:)
555 $(warning $(and ,))
556 $(warning $(and ,) make NO_LIBPYTHON=1)
557 $(warning $(and ,))
558 $(error $(and ,))
559 else
560 LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
561 EXTLIBS += $(PYTHON_EMBED_LIBADD)
562 LANG_BINDINGS += $(obj-perf)python/perf.so
563 endif
564 endif
565 endif
566 endif
567endif
568
569ifeq ($(feature-libbfd), 1)
570 EXTLIBS += -lbfd
571
572 # call all detections now so we get correct
573 # status in VF output
574 $(call feature_check,liberty)
575 $(call feature_check,liberty-z)
576 $(call feature_check,cplus-demangle)
577
578 ifeq ($(feature-liberty), 1)
579 EXTLIBS += -liberty
580 else
581 ifeq ($(feature-liberty-z), 1)
582 EXTLIBS += -liberty -lz
583 endif
584 endif
585endif
586
587ifdef NO_DEMANGLE
588 CFLAGS += -DNO_DEMANGLE
589else
590 ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
591 EXTLIBS += -liberty
592 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
593 else
594 ifneq ($(feature-libbfd), 1)
595 ifneq ($(feature-liberty), 1)
596 ifneq ($(feature-liberty-z), 1)
597 # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
598 # or any of 'bfd iberty z' trinity
599 ifeq ($(feature-cplus-demangle), 1)
600 EXTLIBS += -liberty
601 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
602 else
603 msg := $(warning No bfd.h/libbfd found, install binutils-dev[el]/zlib-static to gain symbol demangling)
604 CFLAGS += -DNO_DEMANGLE
605 endif
606 endif
607 endif
608 endif
609 endif
610endif
611
612ifneq ($(filter -lbfd,$(EXTLIBS)),)
613 CFLAGS += -DHAVE_LIBBFD_SUPPORT
614endif
615
616ifndef NO_ZLIB
617 ifeq ($(feature-zlib), 1)
618 CFLAGS += -DHAVE_ZLIB_SUPPORT
619 EXTLIBS += -lz
620 else
621 NO_ZLIB := 1
622 endif
623endif
624
625ifndef NO_BACKTRACE
626 ifeq ($(feature-backtrace), 1)
627 CFLAGS += -DHAVE_BACKTRACE_SUPPORT
628 endif
629endif
630
631ifndef NO_LIBNUMA
632 ifeq ($(feature-libnuma), 0)
633 msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
634 NO_LIBNUMA := 1
635 else
636 CFLAGS += -DHAVE_LIBNUMA_SUPPORT
637 EXTLIBS += -lnuma
638 endif
639endif
640
641ifdef HAVE_KVM_STAT_SUPPORT
642 CFLAGS += -DHAVE_KVM_STAT_SUPPORT
643endif
644
645ifeq (${IS_64_BIT}, 1)
646 ifndef NO_PERF_READ_VDSO32
647 $(call feature_check,compile-32)
648 ifeq ($(feature-compile-32), 1)
649 CFLAGS += -DHAVE_PERF_READ_VDSO32
650 else
651 NO_PERF_READ_VDSO32 := 1
652 endif
653 endif
654 ifneq (${IS_X86_64}, 1)
655 NO_PERF_READ_VDSOX32 := 1
656 endif
657 ifndef NO_PERF_READ_VDSOX32
658 $(call feature_check,compile-x32)
659 ifeq ($(feature-compile-x32), 1)
660 CFLAGS += -DHAVE_PERF_READ_VDSOX32
661 else
662 NO_PERF_READ_VDSOX32 := 1
663 endif
664 endif
665else
666 NO_PERF_READ_VDSO32 := 1
667 NO_PERF_READ_VDSOX32 := 1
668endif
669
670# Among the variables below, these:
671# perfexecdir
672# template_dir
673# mandir
674# infodir
675# htmldir
676# ETC_PERFCONFIG (but not sysconfdir)
677# can be specified as a relative path some/where/else;
678# this is interpreted as relative to $(prefix) and "perf" at
679# runtime figures out where they are based on the path to the executable.
680# This can help installing the suite in a relocatable way.
681
682# Make the path relative to DESTDIR, not to prefix
683ifndef DESTDIR
684prefix ?= $(HOME)
685endif
686bindir_relative = bin
687bindir = $(prefix)/$(bindir_relative)
688mandir = share/man
689infodir = share/info
690perfexecdir = libexec/perf-core
691sharedir = $(prefix)/share
692template_dir = share/perf-core/templates
693htmldir = share/doc/perf-doc
694ifeq ($(prefix),/usr)
695sysconfdir = /etc
696ETC_PERFCONFIG = $(sysconfdir)/perfconfig
697else
698sysconfdir = $(prefix)/etc
699ETC_PERFCONFIG = etc/perfconfig
700endif
701ifndef lib
702ifeq ($(IS_X86_64),1)
703lib = lib64
704else
705lib = lib
706endif
707endif # lib
708libdir = $(prefix)/$(lib)
709
710# Shell quote (do not use $(call) to accommodate ancient setups);
711ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
712DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
713bindir_SQ = $(subst ','\'',$(bindir))
714mandir_SQ = $(subst ','\'',$(mandir))
715infodir_SQ = $(subst ','\'',$(infodir))
716perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
717template_dir_SQ = $(subst ','\'',$(template_dir))
718htmldir_SQ = $(subst ','\'',$(htmldir))
719prefix_SQ = $(subst ','\'',$(prefix))
720sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
721libdir_SQ = $(subst ','\'',$(libdir))
722
723ifneq ($(filter /%,$(firstword $(perfexecdir))),)
724perfexec_instdir = $(perfexecdir)
725else
726perfexec_instdir = $(prefix)/$(perfexecdir)
727endif
728perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
729
730# If we install to $(HOME) we keep the traceevent default:
731# $(HOME)/.traceevent/plugins
732# Otherwise we install plugins into the global $(libdir).
733ifdef DESTDIR
734plugindir=$(libdir)/traceevent/plugins
735plugindir_SQ= $(subst ','\'',$(plugindir))
736endif
737
738#
739# Print the result of the feature test:
740#
741feature_print_status = $(eval $(feature_print_status_code)) $(info $(MSG))
742
743define feature_print_status_code
744 ifeq ($(feature-$(1)), 1)
745 MSG = $(shell printf '...%30s: [ \033[32mon\033[m ]' $(1))
746 else
747 MSG = $(shell printf '...%30s: [ \033[31mOFF\033[m ]' $(1))
748 endif
749endef
750
751feature_print_var = $(eval $(feature_print_var_code)) $(info $(MSG))
752define feature_print_var_code
753 MSG = $(shell printf '...%30s: %s' $(1) $($(1)))
754endef
755
756feature_print_text = $(eval $(feature_print_text_code)) $(info $(MSG))
757define feature_print_text_code
758 MSG = $(shell printf '...%30s: %s' $(1) $(2))
759endef
760
761PERF_FEATURES := $(foreach feat,$(LIB_FEATURE_TESTS),feature-$(feat)($(feature-$(feat))))
762PERF_FEATURES_FILE := $(shell touch $(OUTPUT)PERF-FEATURES; cat $(OUTPUT)PERF-FEATURES)
763
764ifeq ($(dwarf-post-unwind),1)
765 PERF_FEATURES += dwarf-post-unwind($(dwarf-post-unwind-text))
766endif
767
768# The $(display_lib) controls the default detection message
769# output. It's set if:
770# - detected features differes from stored features from
771# last build (in PERF-FEATURES file)
772# - one of the $(LIB_FEATURE_TESTS) is not detected
773# - VF is enabled
774
775ifneq ("$(PERF_FEATURES)","$(PERF_FEATURES_FILE)")
776 $(shell echo "$(PERF_FEATURES)" > $(OUTPUT)PERF-FEATURES)
777 display_lib := 1
778endif
779
780feature_check = $(eval $(feature_check_code))
781define feature_check_code
782 ifneq ($(feature-$(1)), 1)
783 display_lib := 1
784 endif
785endef
786
787$(foreach feat,$(LIB_FEATURE_TESTS),$(call feature_check,$(feat)))
788
789ifeq ($(VF),1)
790 display_lib := 1
791 display_vf := 1
792endif
793
794ifeq ($(display_lib),1)
795 $(info )
796 $(info Auto-detecting system features:)
797 $(foreach feat,$(LIB_FEATURE_TESTS),$(call feature_print_status,$(feat),))
798
799 ifeq ($(dwarf-post-unwind),1)
800 $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
801 endif
802endif
803
804ifeq ($(display_vf),1)
805 $(foreach feat,$(VF_FEATURE_TESTS),$(call feature_print_status,$(feat),))
806 $(info )
807 $(call feature_print_var,prefix)
808 $(call feature_print_var,bindir)
809 $(call feature_print_var,libdir)
810 $(call feature_print_var,sysconfdir)
811 $(call feature_print_var,LIBUNWIND_DIR)
812 $(call feature_print_var,LIBDW_DIR)
813endif
814
815ifeq ($(display_lib),1)
816 $(info )
817endif