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 $(obj-perf))/
12endif
13
14$(shell printf "" > $(OUTPUT).config-detected)
15detected = $(shell echo "$(1)=y" >> $(OUTPUT).config-detected)
16detected_var = $(shell echo "$(1)=$($(1))" >> $(OUTPUT).config-detected)
17
18CFLAGS := $(EXTRA_CFLAGS) $(EXTRA_WARNINGS)
19
20include $(srctree)/tools/scripts/Makefile.arch
21
22$(call detected_var,ARCH)
23
24NO_PERF_REGS := 1
25
26# Additional ARCH settings for ppc
27ifeq ($(ARCH),powerpc)
28 NO_PERF_REGS := 0
29 LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
30endif
31
32# Additional ARCH settings for x86
33ifeq ($(ARCH),x86)
34 $(call detected,CONFIG_X86)
35 ifeq (${IS_64_BIT}, 1)
36 CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT -DHAVE_SYSCALL_TABLE -I$(OUTPUT)arch/x86/include/generated
37 ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
38 LIBUNWIND_LIBS = -lunwind -lunwind-x86_64
39 $(call detected,CONFIG_X86_64)
40 else
41 LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
42 endif
43 NO_PERF_REGS := 0
44endif
45
46ifeq ($(ARCH),arm)
47 NO_PERF_REGS := 0
48 LIBUNWIND_LIBS = -lunwind -lunwind-arm
49endif
50
51ifeq ($(ARCH),arm64)
52 NO_PERF_REGS := 0
53 LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
54endif
55
56ifeq ($(NO_PERF_REGS),0)
57 $(call detected,CONFIG_PERF_REGS)
58endif
59
60# So far there's only x86 and arm libdw unwind support merged in perf.
61# Disable it on all other architectures in case libdw unwind
62# support is detected in system. Add supported architectures
63# to the check.
64ifneq ($(ARCH),$(filter $(ARCH),x86 arm))
65 NO_LIBDW_DWARF_UNWIND := 1
66endif
67
68ifeq ($(LIBUNWIND_LIBS),)
69 NO_LIBUNWIND := 1
70endif
71#
72# For linking with debug library, run like:
73#
74# make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
75#
76
77libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
78define libunwind_arch_set_flags_code
79 FEATURE_CHECK_CFLAGS-libunwind-$(1) = -I$(LIBUNWIND_DIR)/include
80 FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
81endef
82
83ifdef LIBUNWIND_DIR
84 LIBUNWIND_CFLAGS = -I$(LIBUNWIND_DIR)/include
85 LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
86 LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64
87 $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
88endif
89
90# Set per-feature check compilation flags
91FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
92FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
93FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
94FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
95
96ifeq ($(NO_PERF_REGS),0)
97 CFLAGS += -DHAVE_PERF_REGS_SUPPORT
98endif
99
100# for linking with debug library, run like:
101# make DEBUG=1 LIBDW_DIR=/opt/libdw/
102ifdef LIBDW_DIR
103 LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
104 LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
105endif
106FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
107FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) -ldw
108
109# for linking with debug library, run like:
110# make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
111ifdef LIBBABELTRACE_DIR
112 LIBBABELTRACE_CFLAGS := -I$(LIBBABELTRACE_DIR)/include
113 LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
114endif
115FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
116FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
117
118FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(ARCH)/include/uapi -I$(srctree)/tools/include/uapi
119# include ARCH specific config
120-include $(src-perf)/arch/$(ARCH)/Makefile
121
122ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
123 CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
124endif
125
126include $(srctree)/tools/scripts/utilities.mak
127
128ifeq ($(call get-executable,$(FLEX)),)
129 dummy := $(error Error: $(FLEX) is missing on this system, please install it)
130endif
131
132ifeq ($(call get-executable,$(BISON)),)
133 dummy := $(error Error: $(BISON) is missing on this system, please install it)
134endif
135
136# Treat warnings as errors unless directed not to
137ifneq ($(WERROR),0)
138 CFLAGS += -Werror
139 CXXFLAGS += -Werror
140endif
141
142ifndef DEBUG
143 DEBUG := 0
144endif
145
146ifeq ($(DEBUG),0)
147 CFLAGS += -O6
148endif
149
150ifdef PARSER_DEBUG
151 PARSER_DEBUG_BISON := -t
152 PARSER_DEBUG_FLEX := -d
153 CFLAGS += -DPARSER_DEBUG
154 $(call detected_var,PARSER_DEBUG_BISON)
155 $(call detected_var,PARSER_DEBUG_FLEX)
156endif
157
158# Try different combinations to accommodate systems that only have
159# python[2][-config] in weird combinations but always preferring
160# python2 and python2-config as per pep-0394. If we catch a
161# python[-config] in version 3, the version check will kill it.
162PYTHON2 := $(if $(call get-executable,python2),python2,python)
163override PYTHON := $(call get-executable-or-default,PYTHON,$(PYTHON2))
164PYTHON2_CONFIG := \
165 $(if $(call get-executable,$(PYTHON)-config),$(PYTHON)-config,python-config)
166override PYTHON_CONFIG := \
167 $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON2_CONFIG))
168
169PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
170
171PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
172PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
173
174FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
175FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
176FEATURE_CHECK_CFLAGS-libpython-version := $(PYTHON_EMBED_CCOPTS)
177FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS)
178
179CFLAGS += -fno-omit-frame-pointer
180CFLAGS += -ggdb3
181CFLAGS += -funwind-tables
182CFLAGS += -Wall
183CFLAGS += -Wextra
184CFLAGS += -std=gnu99
185
186CXXFLAGS += -std=gnu++11 -fno-exceptions -fno-rtti
187CXXFLAGS += -Wall
188CXXFLAGS += -fno-omit-frame-pointer
189CXXFLAGS += -ggdb3
190CXXFLAGS += -funwind-tables
191CXXFLAGS += -Wno-strict-aliasing
192
193# Enforce a non-executable stack, as we may regress (again) in the future by
194# adding assembler files missing the .GNU-stack linker note.
195LDFLAGS += -Wl,-z,noexecstack
196
197EXTLIBS = -lpthread -lrt -lm -ldl
198
199ifeq ($(FEATURES_DUMP),)
200include $(srctree)/tools/build/Makefile.feature
201else
202include $(FEATURES_DUMP)
203endif
204
205ifeq ($(feature-stackprotector-all), 1)
206 CFLAGS += -fstack-protector-all
207endif
208
209ifeq ($(DEBUG),0)
210 ifeq ($(feature-fortify-source), 1)
211 CFLAGS += -D_FORTIFY_SOURCE=2
212 endif
213endif
214
215INC_FLAGS += -I$(src-perf)/util/include
216INC_FLAGS += -I$(src-perf)/arch/$(ARCH)/include
217INC_FLAGS += -I$(srctree)/tools/include/uapi
218INC_FLAGS += -I$(srctree)/tools/include/
219INC_FLAGS += -I$(srctree)/tools/arch/$(ARCH)/include/uapi
220INC_FLAGS += -I$(srctree)/tools/arch/$(ARCH)/include/
221INC_FLAGS += -I$(srctree)/tools/arch/$(ARCH)/
222
223# $(obj-perf) for generated common-cmds.h
224# $(obj-perf)/util for generated bison/flex headers
225ifneq ($(OUTPUT),)
226INC_FLAGS += -I$(obj-perf)/util
227INC_FLAGS += -I$(obj-perf)
228endif
229
230INC_FLAGS += -I$(src-perf)/util
231INC_FLAGS += -I$(src-perf)
232INC_FLAGS += -I$(srctree)/tools/lib/
233
234CFLAGS += $(INC_FLAGS)
235CXXFLAGS += $(INC_FLAGS)
236
237CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
238
239ifeq ($(feature-sync-compare-and-swap), 1)
240 CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT
241endif
242
243ifeq ($(feature-pthread-attr-setaffinity-np), 1)
244 CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
245endif
246
247ifndef NO_BIONIC
248 $(call feature_check,bionic)
249 ifeq ($(feature-bionic), 1)
250 BIONIC := 1
251 EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
252 EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
253 endif
254endif
255
256ifdef NO_LIBELF
257 NO_DWARF := 1
258 NO_DEMANGLE := 1
259 NO_LIBUNWIND := 1
260 NO_LIBDW_DWARF_UNWIND := 1
261 NO_LIBBPF := 1
262else
263 ifeq ($(feature-libelf), 0)
264 ifeq ($(feature-glibc), 1)
265 LIBC_SUPPORT := 1
266 endif
267 ifeq ($(BIONIC),1)
268 LIBC_SUPPORT := 1
269 endif
270 ifeq ($(LIBC_SUPPORT),1)
271 msg := $(warning No libelf found, disables 'probe' tool and BPF support in 'perf record', please install libelf-dev, libelf-devel or elfutils-libelf-devel);
272
273 NO_LIBELF := 1
274 NO_DWARF := 1
275 NO_DEMANGLE := 1
276 NO_LIBUNWIND := 1
277 NO_LIBDW_DWARF_UNWIND := 1
278 NO_LIBBPF := 1
279 else
280 ifneq ($(filter s% -static%,$(LDFLAGS),),)
281 msg := $(error No static glibc found, please install glibc-static);
282 else
283 msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
284 endif
285 endif
286 else
287 ifndef NO_LIBDW_DWARF_UNWIND
288 ifneq ($(feature-libdw-dwarf-unwind),1)
289 NO_LIBDW_DWARF_UNWIND := 1
290 msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
291 endif
292 endif
293 ifneq ($(feature-dwarf), 1)
294 msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
295 NO_DWARF := 1
296 else
297 ifneq ($(feature-dwarf_getlocations), 1)
298 msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
299 else
300 CFLAGS += -DHAVE_DWARF_GETLOCATIONS
301 endif # dwarf_getlocations
302 endif # Dwarf support
303 endif # libelf support
304endif # NO_LIBELF
305
306ifdef NO_DWARF
307 NO_LIBDW_DWARF_UNWIND := 1
308endif
309
310ifndef NO_LIBELF
311 CFLAGS += -DHAVE_LIBELF_SUPPORT
312 EXTLIBS += -lelf
313 $(call detected,CONFIG_LIBELF)
314
315 ifeq ($(feature-libelf-mmap), 1)
316 CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
317 endif
318
319 ifeq ($(feature-libelf-getphdrnum), 1)
320 CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
321 endif
322
323 ifeq ($(feature-libelf-gelf_getnote), 1)
324 CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
325 else
326 msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
327 endif
328
329 ifeq ($(feature-libelf-getshdrstrndx), 1)
330 CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
331 endif
332
333 ifndef NO_DWARF
334 ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
335 msg := $(warning DWARF register mappings have not been defined for architecture $(ARCH), DWARF support disabled);
336 NO_DWARF := 1
337 else
338 CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
339 LDFLAGS += $(LIBDW_LDFLAGS)
340 DWARFLIBS := -ldw
341 ifeq ($(findstring -static,${LDFLAGS}),-static)
342 DWARFLIBS += -lelf -lebl -lz -llzma -lbz2
343 endif
344 EXTLIBS += ${DWARFLIBS}
345 $(call detected,CONFIG_DWARF)
346 endif # PERF_HAVE_DWARF_REGS
347 endif # NO_DWARF
348
349 ifndef NO_LIBBPF
350 ifeq ($(feature-bpf), 1)
351 CFLAGS += -DHAVE_LIBBPF_SUPPORT
352 $(call detected,CONFIG_LIBBPF)
353 endif
354
355 ifndef NO_DWARF
356 ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
357 CFLAGS += -DHAVE_BPF_PROLOGUE
358 $(call detected,CONFIG_BPF_PROLOGUE)
359 else
360 msg := $(warning BPF prologue is not supported by architecture $(ARCH), missing regs_query_register_offset());
361 endif
362 else
363 msg := $(warning DWARF support is off, BPF prologue is disabled);
364 endif
365
366 endif # NO_LIBBPF
367endif # NO_LIBELF
368
369ifndef NO_SDT
370 ifneq ($(feature-sdt), 1)
371 msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
372 NO_SDT := 1;
373 else
374 CFLAGS += -DHAVE_SDT_EVENT
375 $(call detected,CONFIG_SDT_EVENT)
376 endif
377endif
378
379ifdef PERF_HAVE_JITDUMP
380 ifndef NO_LIBELF
381 $(call detected,CONFIG_JITDUMP)
382 CFLAGS += -DHAVE_JITDUMP
383 endif
384endif
385
386ifeq ($(ARCH),powerpc)
387 ifndef NO_DWARF
388 CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
389 endif
390endif
391
392ifndef NO_LIBUNWIND
393 have_libunwind :=
394
395 ifeq ($(feature-libunwind-x86), 1)
396 $(call detected,CONFIG_LIBUNWIND_X86)
397 CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
398 LDFLAGS += -lunwind-x86
399 EXTLIBS_LIBUNWIND += -lunwind-x86
400 have_libunwind = 1
401 endif
402
403 ifeq ($(feature-libunwind-aarch64), 1)
404 $(call detected,CONFIG_LIBUNWIND_AARCH64)
405 CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
406 LDFLAGS += -lunwind-aarch64
407 EXTLIBS_LIBUNWIND += -lunwind-aarch64
408 have_libunwind = 1
409 $(call feature_check,libunwind-debug-frame-aarch64)
410 ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
411 msg := $(warning No debug_frame support found in libunwind-aarch64);
412 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
413 endif
414 endif
415
416 ifneq ($(feature-libunwind), 1)
417 msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
418 NO_LOCAL_LIBUNWIND := 1
419 else
420 have_libunwind := 1
421 $(call detected,CONFIG_LOCAL_LIBUNWIND)
422 endif
423
424 ifneq ($(have_libunwind), 1)
425 NO_LIBUNWIND := 1
426 endif
427else
428 NO_LOCAL_LIBUNWIND := 1
429endif
430
431ifndef NO_LIBBPF
432 ifneq ($(feature-bpf), 1)
433 msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
434 NO_LIBBPF := 1
435 endif
436endif
437
438dwarf-post-unwind := 1
439dwarf-post-unwind-text := BUG
440
441# setup DWARF post unwinder
442ifdef NO_LIBUNWIND
443 ifdef NO_LIBDW_DWARF_UNWIND
444 msg := $(warning Disabling post unwind, no support found.);
445 dwarf-post-unwind := 0
446 else
447 dwarf-post-unwind-text := libdw
448 $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
449 endif
450else
451 dwarf-post-unwind-text := libunwind
452 $(call detected,CONFIG_LIBUNWIND)
453 # Enable libunwind support by default.
454 ifndef NO_LIBDW_DWARF_UNWIND
455 NO_LIBDW_DWARF_UNWIND := 1
456 endif
457endif
458
459ifeq ($(dwarf-post-unwind),1)
460 CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
461 $(call detected,CONFIG_DWARF_UNWIND)
462else
463 NO_DWARF_UNWIND := 1
464endif
465
466ifndef NO_LOCAL_LIBUNWIND
467 ifeq ($(ARCH),$(filter $(ARCH),arm arm64))
468 $(call feature_check,libunwind-debug-frame)
469 ifneq ($(feature-libunwind-debug-frame), 1)
470 msg := $(warning No debug_frame support found in libunwind);
471 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
472 endif
473 else
474 # non-ARM has no dwarf_find_debug_frame() function:
475 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
476 endif
477 EXTLIBS += $(LIBUNWIND_LIBS)
478 LDFLAGS += $(LIBUNWIND_LIBS)
479endif
480
481ifndef NO_LIBUNWIND
482 CFLAGS += -DHAVE_LIBUNWIND_SUPPORT
483 CFLAGS += $(LIBUNWIND_CFLAGS)
484 LDFLAGS += $(LIBUNWIND_LDFLAGS)
485 EXTLIBS += $(EXTLIBS_LIBUNWIND)
486endif
487
488ifndef NO_LIBAUDIT
489 ifneq ($(feature-libaudit), 1)
490 msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
491 NO_LIBAUDIT := 1
492 else
493 CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
494 EXTLIBS += -laudit
495 $(call detected,CONFIG_AUDIT)
496 endif
497endif
498
499ifndef NO_LIBCRYPTO
500 ifneq ($(feature-libcrypto), 1)
501 msg := $(warning No libcrypto.h found, disables jitted code injection, please install libssl-devel or libssl-dev);
502 NO_LIBCRYPTO := 1
503 else
504 CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
505 EXTLIBS += -lcrypto
506 $(call detected,CONFIG_CRYPTO)
507 endif
508endif
509
510ifdef NO_NEWT
511 NO_SLANG=1
512endif
513
514ifndef NO_SLANG
515 ifneq ($(feature-libslang), 1)
516 msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
517 NO_SLANG := 1
518 else
519 # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
520 CFLAGS += -I/usr/include/slang
521 CFLAGS += -DHAVE_SLANG_SUPPORT
522 EXTLIBS += -lslang
523 $(call detected,CONFIG_SLANG)
524 endif
525endif
526
527ifndef NO_GTK2
528 FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
529 ifneq ($(feature-gtk2), 1)
530 msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
531 NO_GTK2 := 1
532 else
533 ifeq ($(feature-gtk2-infobar), 1)
534 GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
535 endif
536 CFLAGS += -DHAVE_GTK2_SUPPORT
537 GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
538 GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
539 EXTLIBS += -ldl
540 endif
541endif
542
543grep-libs = $(filter -l%,$(1))
544strip-libs = $(filter-out -l%,$(1))
545
546ifdef NO_LIBPERL
547 CFLAGS += -DNO_LIBPERL
548else
549 PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
550 PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
551 PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
552 PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
553 FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
554
555 ifneq ($(feature-libperl), 1)
556 CFLAGS += -DNO_LIBPERL
557 NO_LIBPERL := 1
558 msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
559 else
560 LDFLAGS += $(PERL_EMBED_LDFLAGS)
561 EXTLIBS += $(PERL_EMBED_LIBADD)
562 $(call detected,CONFIG_LIBPERL)
563 endif
564endif
565
566ifeq ($(feature-timerfd), 1)
567 CFLAGS += -DHAVE_TIMERFD_SUPPORT
568else
569 msg := $(warning No timerfd support. Disables 'perf kvm stat live');
570endif
571
572disable-python = $(eval $(disable-python_code))
573define disable-python_code
574 CFLAGS += -DNO_LIBPYTHON
575 $(warning $1)
576 NO_LIBPYTHON := 1
577endef
578
579ifdef NO_LIBPYTHON
580 $(call disable-python,Python support disabled by user)
581else
582
583 ifndef PYTHON
584 $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
585 else
586 PYTHON_WORD := $(call shell-wordify,$(PYTHON))
587
588 ifndef PYTHON_CONFIG
589 $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
590 else
591
592 PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
593
594 PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
595 PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
596 PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
597 PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
598 FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
599
600 ifneq ($(feature-libpython), 1)
601 $(call disable-python,No 'Python.h' (for Python 2.x support) was found: disables Python support - please install python-devel/python-dev)
602 else
603
604 ifneq ($(feature-libpython-version), 1)
605 $(warning Python 3 is not yet supported; please set)
606 $(warning PYTHON and/or PYTHON_CONFIG appropriately.)
607 $(warning If you also have Python 2 installed, then)
608 $(warning try something like:)
609 $(warning $(and ,))
610 $(warning $(and ,) make PYTHON=python2)
611 $(warning $(and ,))
612 $(warning Otherwise, disable Python support entirely:)
613 $(warning $(and ,))
614 $(warning $(and ,) make NO_LIBPYTHON=1)
615 $(warning $(and ,))
616 $(error $(and ,))
617 else
618 LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
619 EXTLIBS += $(PYTHON_EMBED_LIBADD)
620 LANG_BINDINGS += $(obj-perf)python/perf.so
621 $(call detected,CONFIG_LIBPYTHON)
622 endif
623 endif
624 endif
625 endif
626endif
627
628ifeq ($(feature-libbfd), 1)
629 EXTLIBS += -lbfd
630
631 # call all detections now so we get correct
632 # status in VF output
633 $(call feature_check,liberty)
634 $(call feature_check,liberty-z)
635 $(call feature_check,cplus-demangle)
636
637 ifeq ($(feature-liberty), 1)
638 EXTLIBS += -liberty
639 else
640 ifeq ($(feature-liberty-z), 1)
641 EXTLIBS += -liberty -lz
642 endif
643 endif
644endif
645
646ifdef NO_DEMANGLE
647 CFLAGS += -DNO_DEMANGLE
648else
649 ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
650 EXTLIBS += -liberty
651 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
652 else
653 ifneq ($(feature-libbfd), 1)
654 ifneq ($(feature-liberty), 1)
655 ifneq ($(feature-liberty-z), 1)
656 # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
657 # or any of 'bfd iberty z' trinity
658 ifeq ($(feature-cplus-demangle), 1)
659 EXTLIBS += -liberty
660 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
661 else
662 msg := $(warning No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling)
663 CFLAGS += -DNO_DEMANGLE
664 endif
665 endif
666 endif
667 endif
668 endif
669endif
670
671ifneq ($(filter -lbfd,$(EXTLIBS)),)
672 CFLAGS += -DHAVE_LIBBFD_SUPPORT
673endif
674
675ifndef NO_ZLIB
676 ifeq ($(feature-zlib), 1)
677 CFLAGS += -DHAVE_ZLIB_SUPPORT
678 EXTLIBS += -lz
679 $(call detected,CONFIG_ZLIB)
680 else
681 NO_ZLIB := 1
682 endif
683endif
684
685ifndef NO_LZMA
686 ifeq ($(feature-lzma), 1)
687 CFLAGS += -DHAVE_LZMA_SUPPORT
688 EXTLIBS += -llzma
689 $(call detected,CONFIG_LZMA)
690 else
691 msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
692 NO_LZMA := 1
693 endif
694endif
695
696ifndef NO_BACKTRACE
697 ifeq ($(feature-backtrace), 1)
698 CFLAGS += -DHAVE_BACKTRACE_SUPPORT
699 endif
700endif
701
702ifndef NO_LIBNUMA
703 ifeq ($(feature-libnuma), 0)
704 msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
705 NO_LIBNUMA := 1
706 else
707 ifeq ($(feature-numa_num_possible_cpus), 0)
708 msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
709 NO_LIBNUMA := 1
710 else
711 CFLAGS += -DHAVE_LIBNUMA_SUPPORT
712 EXTLIBS += -lnuma
713 $(call detected,CONFIG_NUMA)
714 endif
715 endif
716endif
717
718ifdef HAVE_KVM_STAT_SUPPORT
719 CFLAGS += -DHAVE_KVM_STAT_SUPPORT
720endif
721
722ifeq (${IS_64_BIT}, 1)
723 ifndef NO_PERF_READ_VDSO32
724 $(call feature_check,compile-32)
725 ifeq ($(feature-compile-32), 1)
726 CFLAGS += -DHAVE_PERF_READ_VDSO32
727 else
728 NO_PERF_READ_VDSO32 := 1
729 endif
730 endif
731 ifneq ($(ARCH), x86)
732 NO_PERF_READ_VDSOX32 := 1
733 endif
734 ifndef NO_PERF_READ_VDSOX32
735 $(call feature_check,compile-x32)
736 ifeq ($(feature-compile-x32), 1)
737 CFLAGS += -DHAVE_PERF_READ_VDSOX32
738 else
739 NO_PERF_READ_VDSOX32 := 1
740 endif
741 endif
742else
743 NO_PERF_READ_VDSO32 := 1
744 NO_PERF_READ_VDSOX32 := 1
745endif
746
747ifdef LIBBABELTRACE
748 $(call feature_check,libbabeltrace)
749 ifeq ($(feature-libbabeltrace), 1)
750 CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
751 LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
752 EXTLIBS += -lbabeltrace-ctf
753 $(call detected,CONFIG_LIBBABELTRACE)
754 else
755 msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
756 endif
757endif
758
759ifndef NO_AUXTRACE
760 ifeq ($(ARCH),x86)
761 ifeq ($(feature-get_cpuid), 0)
762 msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
763 NO_AUXTRACE := 1
764 endif
765 endif
766 ifndef NO_AUXTRACE
767 $(call detected,CONFIG_AUXTRACE)
768 CFLAGS += -DHAVE_AUXTRACE_SUPPORT
769 endif
770endif
771
772ifndef NO_JVMTI
773 ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
774 JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
775 else
776 ifneq (,$(wildcard /usr/sbin/alternatives))
777 JDIR=$(shell alternatives --display java | tail -1 | cut -d' ' -f 5 | sed 's%/jre/bin/java.%%g')
778 endif
779 endif
780 ifndef JDIR
781 $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
782 NO_JVMTI := 1
783 endif
784endif
785
786ifndef NO_JVMTI
787 FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
788 $(call feature_check,jvmti)
789 ifeq ($(feature-jvmti), 1)
790 $(call detected_var,JDIR)
791 else
792 $(warning No openjdk development package found, please install JDK package)
793 NO_JVMTI := 1
794 endif
795endif
796
797USE_CXX = 0
798USE_CLANGLLVM = 0
799ifdef LIBCLANGLLVM
800 $(call feature_check,cxx)
801 ifneq ($(feature-cxx), 1)
802 msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
803 else
804 $(call feature_check,llvm)
805 $(call feature_check,llvm-version)
806 ifneq ($(feature-llvm), 1)
807 msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
808 else
809 $(call feature_check,clang)
810 ifneq ($(feature-clang), 1)
811 msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
812 else
813 CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
814 CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
815 $(call detected,CONFIG_CXX)
816 $(call detected,CONFIG_CLANGLLVM)
817 USE_CXX = 1
818 USE_LLVM = 1
819 USE_CLANG = 1
820 ifneq ($(feature-llvm-version),1)
821 msg := $(warning This version of LLVM is not tested. May cause build errors)
822 endif
823 endif
824 endif
825 endif
826endif
827
828# Among the variables below, these:
829# perfexecdir
830# template_dir
831# mandir
832# infodir
833# htmldir
834# ETC_PERFCONFIG (but not sysconfdir)
835# can be specified as a relative path some/where/else;
836# this is interpreted as relative to $(prefix) and "perf" at
837# runtime figures out where they are based on the path to the executable.
838# This can help installing the suite in a relocatable way.
839
840# Make the path relative to DESTDIR, not to prefix
841ifndef DESTDIR
842prefix ?= $(HOME)
843endif
844bindir_relative = bin
845bindir = $(abspath $(prefix)/$(bindir_relative))
846mandir = share/man
847infodir = share/info
848perfexecdir = libexec/perf-core
849sharedir = $(prefix)/share
850template_dir = share/perf-core/templates
851STRACE_GROUPS_DIR = share/perf-core/strace/groups
852htmldir = share/doc/perf-doc
853tipdir = share/doc/perf-tip
854srcdir = $(srctree)/tools/perf
855ifeq ($(prefix),/usr)
856sysconfdir = /etc
857ETC_PERFCONFIG = $(sysconfdir)/perfconfig
858else
859sysconfdir = $(prefix)/etc
860ETC_PERFCONFIG = etc/perfconfig
861endif
862ifndef lib
863ifeq ($(ARCH)$(IS_64_BIT), x861)
864lib = lib64
865else
866lib = lib
867endif
868endif # lib
869libdir = $(prefix)/$(lib)
870
871# Shell quote (do not use $(call) to accommodate ancient setups);
872ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
873STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
874DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
875bindir_SQ = $(subst ','\'',$(bindir))
876mandir_SQ = $(subst ','\'',$(mandir))
877infodir_SQ = $(subst ','\'',$(infodir))
878perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
879template_dir_SQ = $(subst ','\'',$(template_dir))
880htmldir_SQ = $(subst ','\'',$(htmldir))
881tipdir_SQ = $(subst ','\'',$(tipdir))
882prefix_SQ = $(subst ','\'',$(prefix))
883sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
884libdir_SQ = $(subst ','\'',$(libdir))
885srcdir_SQ = $(subst ','\'',$(srcdir))
886
887ifneq ($(filter /%,$(firstword $(perfexecdir))),)
888perfexec_instdir = $(perfexecdir)
889STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
890tip_instdir = $(tipdir)
891else
892perfexec_instdir = $(prefix)/$(perfexecdir)
893STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
894tip_instdir = $(prefix)/$(tipdir)
895endif
896perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
897STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
898tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
899
900# If we install to $(HOME) we keep the traceevent default:
901# $(HOME)/.traceevent/plugins
902# Otherwise we install plugins into the global $(libdir).
903ifdef DESTDIR
904plugindir=$(libdir)/traceevent/plugins
905plugindir_SQ= $(subst ','\'',$(plugindir))
906endif
907
908print_var = $(eval $(print_var_code)) $(info $(MSG))
909define print_var_code
910 MSG = $(shell printf '...%30s: %s' $(1) $($(1)))
911endef
912
913ifeq ($(VF),1)
914 $(call print_var,prefix)
915 $(call print_var,bindir)
916 $(call print_var,libdir)
917 $(call print_var,sysconfdir)
918 $(call print_var,LIBUNWIND_DIR)
919 $(call print_var,LIBDW_DIR)
920 $(call print_var,JDIR)
921
922 ifeq ($(dwarf-post-unwind),1)
923 $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
924 endif
925 $(info )
926endif
927
928$(call detected_var,bindir_SQ)
929$(call detected_var,PYTHON_WORD)
930ifneq ($(OUTPUT),)
931$(call detected_var,OUTPUT)
932endif
933$(call detected_var,htmldir_SQ)
934$(call detected_var,infodir_SQ)
935$(call detected_var,mandir_SQ)
936$(call detected_var,ETC_PERFCONFIG_SQ)
937$(call detected_var,STRACE_GROUPS_DIR_SQ)
938$(call detected_var,prefix_SQ)
939$(call detected_var,perfexecdir_SQ)
940$(call detected_var,tipdir_SQ)
941$(call detected_var,srcdir_SQ)
942$(call detected_var,LIBDIR)
943$(call detected_var,GTK_CFLAGS)
944$(call detected_var,PERL_EMBED_CCOPTS)
945$(call detected_var,PYTHON_EMBED_CCOPTS)