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 stackprotector-all \
202 timerfd \
203 libdw-dwarf-unwind \
204 zlib
205
206LIB_FEATURE_TESTS = \
207 dwarf \
208 glibc \
209 gtk2 \
210 libaudit \
211 libbfd \
212 libelf \
213 libnuma \
214 libperl \
215 libpython \
216 libslang \
217 libunwind \
218 libdw-dwarf-unwind \
219 zlib
220
221VF_FEATURE_TESTS = \
222 backtrace \
223 fortify-source \
224 sync-compare-and-swap \
225 gtk2-infobar \
226 libelf-getphdrnum \
227 libelf-mmap \
228 libpython-version \
229 stackprotector-all \
230 timerfd \
231 libunwind-debug-frame \
232 bionic \
233 liberty \
234 liberty-z \
235 cplus-demangle \
236 compile-32 \
237 compile-x32
238
239# Set FEATURE_CHECK_(C|LD)FLAGS-all for all CORE_FEATURE_TESTS features.
240# If in the future we need per-feature checks/flags for features not
241# mentioned in this list we need to refactor this ;-).
242set_test_all_flags = $(eval $(set_test_all_flags_code))
243define set_test_all_flags_code
244 FEATURE_CHECK_CFLAGS-all += $(FEATURE_CHECK_CFLAGS-$(1))
245 FEATURE_CHECK_LDFLAGS-all += $(FEATURE_CHECK_LDFLAGS-$(1))
246endef
247
248$(foreach feat,$(CORE_FEATURE_TESTS),$(call set_test_all_flags,$(feat)))
249
250#
251# Special fast-path for the 'all features are available' case:
252#
253$(call feature_check,all,$(MSG))
254
255#
256# Just in case the build freshly failed, make sure we print the
257# feature matrix:
258#
259ifeq ($(feature-all), 1)
260 #
261 # test-all.c passed - just set all the core feature flags to 1:
262 #
263 $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_set,$(feat)))
264else
265 $(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)
266 $(foreach feat,$(CORE_FEATURE_TESTS),$(call feature_check,$(feat)))
267endif
268
269ifeq ($(feature-stackprotector-all), 1)
270 CFLAGS += -fstack-protector-all
271endif
272
273ifeq ($(DEBUG),0)
274 ifeq ($(feature-fortify-source), 1)
275 CFLAGS += -D_FORTIFY_SOURCE=2
276 endif
277endif
278
279CFLAGS += -I$(src-perf)/util/include
280CFLAGS += -I$(src-perf)/arch/$(ARCH)/include
281CFLAGS += -I$(srctree)/tools/include/
282CFLAGS += -I$(srctree)/arch/$(ARCH)/include/uapi
283CFLAGS += -I$(srctree)/arch/$(ARCH)/include
284CFLAGS += -I$(srctree)/include/uapi
285CFLAGS += -I$(srctree)/include
286
287# $(obj-perf) for generated common-cmds.h
288# $(obj-perf)/util for generated bison/flex headers
289ifneq ($(OUTPUT),)
290CFLAGS += -I$(obj-perf)/util
291CFLAGS += -I$(obj-perf)
292endif
293
294CFLAGS += -I$(src-perf)/util
295CFLAGS += -I$(src-perf)
296CFLAGS += -I$(LIB_INCLUDE)
297
298CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
299
300ifeq ($(feature-sync-compare-and-swap), 1)
301 CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT
302endif
303
304ifndef NO_BIONIC
305 $(call feature_check,bionic)
306 ifeq ($(feature-bionic), 1)
307 BIONIC := 1
308 EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
309 EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
310 endif
311endif
312
313ifdef NO_LIBELF
314 NO_DWARF := 1
315 NO_DEMANGLE := 1
316 NO_LIBUNWIND := 1
317 NO_LIBDW_DWARF_UNWIND := 1
318else
319 ifeq ($(feature-libelf), 0)
320 ifeq ($(feature-glibc), 1)
321 LIBC_SUPPORT := 1
322 endif
323 ifeq ($(BIONIC),1)
324 LIBC_SUPPORT := 1
325 endif
326 ifeq ($(LIBC_SUPPORT),1)
327 msg := $(warning No libelf found, disables 'probe' tool, please install elfutils-libelf-devel/libelf-dev);
328
329 NO_LIBELF := 1
330 NO_DWARF := 1
331 NO_DEMANGLE := 1
332 NO_LIBUNWIND := 1
333 NO_LIBDW_DWARF_UNWIND := 1
334 else
335 ifneq ($(filter s% -static%,$(LDFLAGS),),)
336 msg := $(error No static glibc found, please install glibc-static);
337 else
338 msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
339 endif
340 endif
341 else
342 ifndef NO_LIBDW_DWARF_UNWIND
343 ifneq ($(feature-libdw-dwarf-unwind),1)
344 NO_LIBDW_DWARF_UNWIND := 1
345 msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
346 endif
347 endif
348 ifneq ($(feature-dwarf), 1)
349 msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
350 NO_DWARF := 1
351 endif # Dwarf support
352 endif # libelf support
353endif # NO_LIBELF
354
355ifndef NO_LIBELF
356 CFLAGS += -DHAVE_LIBELF_SUPPORT
357 EXTLIBS += -lelf
358
359 ifeq ($(feature-libelf-mmap), 1)
360 CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
361 endif
362
363 ifeq ($(feature-libelf-getphdrnum), 1)
364 CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
365 endif
366
367 # include ARCH specific config
368 -include $(src-perf)/arch/$(ARCH)/Makefile
369
370 ifndef NO_DWARF
371 ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
372 msg := $(warning DWARF register mappings have not been defined for architecture $(ARCH), DWARF support disabled);
373 NO_DWARF := 1
374 else
375 CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
376 LDFLAGS += $(LIBDW_LDFLAGS)
377 EXTLIBS += -ldw
378 endif # PERF_HAVE_DWARF_REGS
379 endif # NO_DWARF
380endif # NO_LIBELF
381
382ifeq ($(ARCH),powerpc)
383 ifndef NO_DWARF
384 CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
385 endif
386endif
387
388ifndef NO_LIBUNWIND
389 ifneq ($(feature-libunwind), 1)
390 msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
391 NO_LIBUNWIND := 1
392 endif
393endif
394
395dwarf-post-unwind := 1
396dwarf-post-unwind-text := BUG
397
398# setup DWARF post unwinder
399ifdef NO_LIBUNWIND
400 ifdef NO_LIBDW_DWARF_UNWIND
401 msg := $(warning Disabling post unwind, no support found.);
402 dwarf-post-unwind := 0
403 else
404 dwarf-post-unwind-text := libdw
405 endif
406else
407 dwarf-post-unwind-text := libunwind
408 # Enable libunwind support by default.
409 ifndef NO_LIBDW_DWARF_UNWIND
410 NO_LIBDW_DWARF_UNWIND := 1
411 endif
412endif
413
414ifeq ($(dwarf-post-unwind),1)
415 CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
416else
417 NO_DWARF_UNWIND := 1
418endif
419
420ifndef NO_LIBUNWIND
421 ifeq ($(ARCH),$(filter $(ARCH),arm arm64))
422 $(call feature_check,libunwind-debug-frame)
423 ifneq ($(feature-libunwind-debug-frame), 1)
424 msg := $(warning No debug_frame support found in libunwind);
425 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
426 endif
427 else
428 # non-ARM has no dwarf_find_debug_frame() function:
429 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
430 endif
431 CFLAGS += -DHAVE_LIBUNWIND_SUPPORT
432 EXTLIBS += $(LIBUNWIND_LIBS)
433 CFLAGS += $(LIBUNWIND_CFLAGS)
434 LDFLAGS += $(LIBUNWIND_LDFLAGS)
435endif
436
437ifndef NO_LIBAUDIT
438 ifneq ($(feature-libaudit), 1)
439 msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
440 NO_LIBAUDIT := 1
441 else
442 CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
443 EXTLIBS += -laudit
444 endif
445endif
446
447ifdef NO_NEWT
448 NO_SLANG=1
449endif
450
451ifndef NO_SLANG
452 ifneq ($(feature-libslang), 1)
453 msg := $(warning slang not found, disables TUI support. Please install slang-devel or libslang-dev);
454 NO_SLANG := 1
455 else
456 # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
457 CFLAGS += -I/usr/include/slang
458 CFLAGS += -DHAVE_SLANG_SUPPORT
459 EXTLIBS += -lslang
460 endif
461endif
462
463ifndef NO_GTK2
464 FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
465 ifneq ($(feature-gtk2), 1)
466 msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
467 NO_GTK2 := 1
468 else
469 ifeq ($(feature-gtk2-infobar), 1)
470 GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
471 endif
472 CFLAGS += -DHAVE_GTK2_SUPPORT
473 GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
474 GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
475 EXTLIBS += -ldl
476 endif
477endif
478
479grep-libs = $(filter -l%,$(1))
480strip-libs = $(filter-out -l%,$(1))
481
482ifdef NO_LIBPERL
483 CFLAGS += -DNO_LIBPERL
484else
485 PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
486 PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
487 PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
488 PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
489 FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
490
491 ifneq ($(feature-libperl), 1)
492 CFLAGS += -DNO_LIBPERL
493 NO_LIBPERL := 1
494 msg := $(warning Missing perl devel files. Disabling perl scripting support, consider installing perl-ExtUtils-Embed);
495 else
496 LDFLAGS += $(PERL_EMBED_LDFLAGS)
497 EXTLIBS += $(PERL_EMBED_LIBADD)
498 endif
499endif
500
501ifeq ($(feature-timerfd), 1)
502 CFLAGS += -DHAVE_TIMERFD_SUPPORT
503else
504 msg := $(warning No timerfd support. Disables 'perf kvm stat live');
505endif
506
507disable-python = $(eval $(disable-python_code))
508define disable-python_code
509 CFLAGS += -DNO_LIBPYTHON
510 $(if $(1),$(warning No $(1) was found))
511 $(warning Python support will not be built)
512 NO_LIBPYTHON := 1
513endef
514
515ifdef NO_LIBPYTHON
516 $(call disable-python)
517else
518
519 ifndef PYTHON
520 $(call disable-python,python interpreter)
521 else
522 PYTHON_WORD := $(call shell-wordify,$(PYTHON))
523
524 ifndef PYTHON_CONFIG
525 $(call disable-python,python-config tool)
526 else
527
528 PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
529
530 PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
531 PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
532 PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS))
533 PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
534 FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
535
536 ifneq ($(feature-libpython), 1)
537 $(call disable-python,Python.h (for Python 2.x))
538 else
539
540 ifneq ($(feature-libpython-version), 1)
541 $(warning Python 3 is not yet supported; please set)
542 $(warning PYTHON and/or PYTHON_CONFIG appropriately.)
543 $(warning If you also have Python 2 installed, then)
544 $(warning try something like:)
545 $(warning $(and ,))
546 $(warning $(and ,) make PYTHON=python2)
547 $(warning $(and ,))
548 $(warning Otherwise, disable Python support entirely:)
549 $(warning $(and ,))
550 $(warning $(and ,) make NO_LIBPYTHON=1)
551 $(warning $(and ,))
552 $(error $(and ,))
553 else
554 LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
555 EXTLIBS += $(PYTHON_EMBED_LIBADD)
556 LANG_BINDINGS += $(obj-perf)python/perf.so
557 endif
558 endif
559 endif
560 endif
561endif
562
563ifeq ($(feature-libbfd), 1)
564 EXTLIBS += -lbfd
565
566 # call all detections now so we get correct
567 # status in VF output
568 $(call feature_check,liberty)
569 $(call feature_check,liberty-z)
570 $(call feature_check,cplus-demangle)
571
572 ifeq ($(feature-liberty), 1)
573 EXTLIBS += -liberty
574 else
575 ifeq ($(feature-liberty-z), 1)
576 EXTLIBS += -liberty -lz
577 endif
578 endif
579endif
580
581ifdef NO_DEMANGLE
582 CFLAGS += -DNO_DEMANGLE
583else
584 ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
585 EXTLIBS += -liberty
586 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
587 else
588 ifneq ($(feature-libbfd), 1)
589 ifneq ($(feature-liberty), 1)
590 ifneq ($(feature-liberty-z), 1)
591 # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
592 # or any of 'bfd iberty z' trinity
593 ifeq ($(feature-cplus-demangle), 1)
594 EXTLIBS += -liberty
595 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
596 else
597 msg := $(warning No bfd.h/libbfd found, install binutils-dev[el]/zlib-static to gain symbol demangling)
598 CFLAGS += -DNO_DEMANGLE
599 endif
600 endif
601 endif
602 endif
603 endif
604endif
605
606ifneq ($(filter -lbfd,$(EXTLIBS)),)
607 CFLAGS += -DHAVE_LIBBFD_SUPPORT
608endif
609
610ifndef NO_ZLIB
611 ifeq ($(feature-zlib), 1)
612 CFLAGS += -DHAVE_ZLIB_SUPPORT
613 EXTLIBS += -lz
614 else
615 NO_ZLIB := 1
616 endif
617endif
618
619ifndef NO_BACKTRACE
620 ifeq ($(feature-backtrace), 1)
621 CFLAGS += -DHAVE_BACKTRACE_SUPPORT
622 endif
623endif
624
625ifndef NO_LIBNUMA
626 ifeq ($(feature-libnuma), 0)
627 msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
628 NO_LIBNUMA := 1
629 else
630 CFLAGS += -DHAVE_LIBNUMA_SUPPORT
631 EXTLIBS += -lnuma
632 endif
633endif
634
635ifdef HAVE_KVM_STAT_SUPPORT
636 CFLAGS += -DHAVE_KVM_STAT_SUPPORT
637endif
638
639ifeq (${IS_64_BIT}, 1)
640 ifndef NO_PERF_READ_VDSO32
641 $(call feature_check,compile-32)
642 ifeq ($(feature-compile-32), 1)
643 CFLAGS += -DHAVE_PERF_READ_VDSO32
644 else
645 NO_PERF_READ_VDSO32 := 1
646 endif
647 endif
648 ifneq (${IS_X86_64}, 1)
649 NO_PERF_READ_VDSOX32 := 1
650 endif
651 ifndef NO_PERF_READ_VDSOX32
652 $(call feature_check,compile-x32)
653 ifeq ($(feature-compile-x32), 1)
654 CFLAGS += -DHAVE_PERF_READ_VDSOX32
655 else
656 NO_PERF_READ_VDSOX32 := 1
657 endif
658 endif
659else
660 NO_PERF_READ_VDSO32 := 1
661 NO_PERF_READ_VDSOX32 := 1
662endif
663
664# Among the variables below, these:
665# perfexecdir
666# template_dir
667# mandir
668# infodir
669# htmldir
670# ETC_PERFCONFIG (but not sysconfdir)
671# can be specified as a relative path some/where/else;
672# this is interpreted as relative to $(prefix) and "perf" at
673# runtime figures out where they are based on the path to the executable.
674# This can help installing the suite in a relocatable way.
675
676# Make the path relative to DESTDIR, not to prefix
677ifndef DESTDIR
678prefix ?= $(HOME)
679endif
680bindir_relative = bin
681bindir = $(prefix)/$(bindir_relative)
682mandir = share/man
683infodir = share/info
684perfexecdir = libexec/perf-core
685sharedir = $(prefix)/share
686template_dir = share/perf-core/templates
687htmldir = share/doc/perf-doc
688ifeq ($(prefix),/usr)
689sysconfdir = /etc
690ETC_PERFCONFIG = $(sysconfdir)/perfconfig
691else
692sysconfdir = $(prefix)/etc
693ETC_PERFCONFIG = etc/perfconfig
694endif
695ifndef lib
696ifeq ($(IS_X86_64),1)
697lib = lib64
698else
699lib = lib
700endif
701endif # lib
702libdir = $(prefix)/$(lib)
703
704# Shell quote (do not use $(call) to accommodate ancient setups);
705ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
706DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
707bindir_SQ = $(subst ','\'',$(bindir))
708mandir_SQ = $(subst ','\'',$(mandir))
709infodir_SQ = $(subst ','\'',$(infodir))
710perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
711template_dir_SQ = $(subst ','\'',$(template_dir))
712htmldir_SQ = $(subst ','\'',$(htmldir))
713prefix_SQ = $(subst ','\'',$(prefix))
714sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
715libdir_SQ = $(subst ','\'',$(libdir))
716
717ifneq ($(filter /%,$(firstword $(perfexecdir))),)
718perfexec_instdir = $(perfexecdir)
719else
720perfexec_instdir = $(prefix)/$(perfexecdir)
721endif
722perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
723
724# If we install to $(HOME) we keep the traceevent default:
725# $(HOME)/.traceevent/plugins
726# Otherwise we install plugins into the global $(libdir).
727ifdef DESTDIR
728plugindir=$(libdir)/traceevent/plugins
729plugindir_SQ= $(subst ','\'',$(plugindir))
730endif
731
732#
733# Print the result of the feature test:
734#
735feature_print_status = $(eval $(feature_print_status_code)) $(info $(MSG))
736
737define feature_print_status_code
738 ifeq ($(feature-$(1)), 1)
739 MSG = $(shell printf '...%30s: [ \033[32mon\033[m ]' $(1))
740 else
741 MSG = $(shell printf '...%30s: [ \033[31mOFF\033[m ]' $(1))
742 endif
743endef
744
745feature_print_var = $(eval $(feature_print_var_code)) $(info $(MSG))
746define feature_print_var_code
747 MSG = $(shell printf '...%30s: %s' $(1) $($(1)))
748endef
749
750feature_print_text = $(eval $(feature_print_text_code)) $(info $(MSG))
751define feature_print_text_code
752 MSG = $(shell printf '...%30s: %s' $(1) $(2))
753endef
754
755PERF_FEATURES := $(foreach feat,$(LIB_FEATURE_TESTS),feature-$(feat)($(feature-$(feat))))
756PERF_FEATURES_FILE := $(shell touch $(OUTPUT)PERF-FEATURES; cat $(OUTPUT)PERF-FEATURES)
757
758ifeq ($(dwarf-post-unwind),1)
759 PERF_FEATURES += dwarf-post-unwind($(dwarf-post-unwind-text))
760endif
761
762# The $(display_lib) controls the default detection message
763# output. It's set if:
764# - detected features differes from stored features from
765# last build (in PERF-FEATURES file)
766# - one of the $(LIB_FEATURE_TESTS) is not detected
767# - VF is enabled
768
769ifneq ("$(PERF_FEATURES)","$(PERF_FEATURES_FILE)")
770 $(shell echo "$(PERF_FEATURES)" > $(OUTPUT)PERF-FEATURES)
771 display_lib := 1
772endif
773
774feature_check = $(eval $(feature_check_code))
775define feature_check_code
776 ifneq ($(feature-$(1)), 1)
777 display_lib := 1
778 endif
779endef
780
781$(foreach feat,$(LIB_FEATURE_TESTS),$(call feature_check,$(feat)))
782
783ifeq ($(VF),1)
784 display_lib := 1
785 display_vf := 1
786endif
787
788ifeq ($(display_lib),1)
789 $(info )
790 $(info Auto-detecting system features:)
791 $(foreach feat,$(LIB_FEATURE_TESTS),$(call feature_print_status,$(feat),))
792
793 ifeq ($(dwarf-post-unwind),1)
794 $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
795 endif
796endif
797
798ifeq ($(display_vf),1)
799 $(foreach feat,$(VF_FEATURE_TESTS),$(call feature_print_status,$(feat),))
800 $(info )
801 $(call feature_print_var,prefix)
802 $(call feature_print_var,bindir)
803 $(call feature_print_var,libdir)
804 $(call feature_print_var,sysconfdir)
805 $(call feature_print_var,LIBUNWIND_DIR)
806 $(call feature_print_var,LIBDW_DIR)
807endif
808
809ifeq ($(display_lib),1)
810 $(info )
811endif