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,SRCARCH)
23
24NO_PERF_REGS := 1
25NO_SYSCALL_TABLE := 1
26
27# Additional ARCH settings for ppc
28ifeq ($(SRCARCH),powerpc)
29 NO_PERF_REGS := 0
30 NO_SYSCALL_TABLE := 0
31 CFLAGS += -I$(OUTPUT)arch/powerpc/include/generated
32 LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
33endif
34
35# Additional ARCH settings for x86
36ifeq ($(SRCARCH),x86)
37 $(call detected,CONFIG_X86)
38 ifeq (${IS_64_BIT}, 1)
39 NO_SYSCALL_TABLE := 0
40 CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT -I$(OUTPUT)arch/x86/include/generated
41 ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
42 LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma
43 $(call detected,CONFIG_X86_64)
44 else
45 LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
46 endif
47 NO_PERF_REGS := 0
48endif
49
50ifeq ($(SRCARCH),arm)
51 NO_PERF_REGS := 0
52 LIBUNWIND_LIBS = -lunwind -lunwind-arm
53endif
54
55ifeq ($(SRCARCH),arm64)
56 NO_PERF_REGS := 0
57 NO_SYSCALL_TABLE := 0
58 CFLAGS += -I$(OUTPUT)arch/arm64/include/generated
59 LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
60endif
61
62ifeq ($(ARCH),s390)
63 NO_PERF_REGS := 0
64 NO_SYSCALL_TABLE := 0
65 CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
66endif
67
68ifeq ($(NO_PERF_REGS),0)
69 $(call detected,CONFIG_PERF_REGS)
70endif
71
72ifneq ($(NO_SYSCALL_TABLE),1)
73 CFLAGS += -DHAVE_SYSCALL_TABLE_SUPPORT
74endif
75
76# So far there's only x86 and arm libdw unwind support merged in perf.
77# Disable it on all other architectures in case libdw unwind
78# support is detected in system. Add supported architectures
79# to the check.
80ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390))
81 NO_LIBDW_DWARF_UNWIND := 1
82endif
83
84ifeq ($(LIBUNWIND_LIBS),)
85 NO_LIBUNWIND := 1
86endif
87#
88# For linking with debug library, run like:
89#
90# make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
91#
92
93libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
94define libunwind_arch_set_flags_code
95 FEATURE_CHECK_CFLAGS-libunwind-$(1) = -I$(LIBUNWIND_DIR)/include
96 FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
97endef
98
99ifdef LIBUNWIND_DIR
100 LIBUNWIND_CFLAGS = -I$(LIBUNWIND_DIR)/include
101 LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
102 LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64
103 $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
104endif
105
106# Set per-feature check compilation flags
107FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
108FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
109FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
110FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
111
112ifdef CSINCLUDES
113 LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
114endif
115OPENCSDLIBS := -lopencsd_c_api -lopencsd
116ifdef CSLIBS
117 LIBOPENCSD_LDFLAGS := -L$(CSLIBS)
118endif
119FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
120FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
121
122ifeq ($(NO_PERF_REGS),0)
123 CFLAGS += -DHAVE_PERF_REGS_SUPPORT
124endif
125
126# for linking with debug library, run like:
127# make DEBUG=1 LIBDW_DIR=/opt/libdw/
128ifdef LIBDW_DIR
129 LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
130 LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
131endif
132DWARFLIBS := -ldw
133ifeq ($(findstring -static,${LDFLAGS}),-static)
134 DWARFLIBS += -lelf -lebl -ldl -lz -llzma -lbz2
135endif
136FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
137FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
138
139# for linking with debug library, run like:
140# make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
141ifdef LIBBABELTRACE_DIR
142 LIBBABELTRACE_CFLAGS := -I$(LIBBABELTRACE_DIR)/include
143 LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
144endif
145FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
146FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
147
148FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
149# include ARCH specific config
150-include $(src-perf)/arch/$(SRCARCH)/Makefile
151
152ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
153 CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
154endif
155
156include $(srctree)/tools/scripts/utilities.mak
157
158ifeq ($(call get-executable,$(FLEX)),)
159 dummy := $(error Error: $(FLEX) is missing on this system, please install it)
160endif
161
162ifeq ($(call get-executable,$(BISON)),)
163 dummy := $(error Error: $(BISON) is missing on this system, please install it)
164endif
165
166# Treat warnings as errors unless directed not to
167ifneq ($(WERROR),0)
168 CFLAGS += -Werror
169 CXXFLAGS += -Werror
170endif
171
172ifndef DEBUG
173 DEBUG := 0
174endif
175
176ifeq ($(DEBUG),0)
177ifeq ($(CC_NO_CLANG), 0)
178 CFLAGS += -O3
179else
180 CFLAGS += -O6
181endif
182endif
183
184ifdef PARSER_DEBUG
185 PARSER_DEBUG_BISON := -t
186 PARSER_DEBUG_FLEX := -d
187 CFLAGS += -DPARSER_DEBUG
188 $(call detected_var,PARSER_DEBUG_BISON)
189 $(call detected_var,PARSER_DEBUG_FLEX)
190endif
191
192# Try different combinations to accommodate systems that only have
193# python[2][-config] in weird combinations but always preferring
194# python2 and python2-config as per pep-0394. If we catch a
195# python[-config] in version 3, the version check will kill it.
196PYTHON2 := $(if $(call get-executable,python2),python2,python)
197override PYTHON := $(call get-executable-or-default,PYTHON,$(PYTHON2))
198PYTHON2_CONFIG := \
199 $(if $(call get-executable,$(PYTHON)-config),$(PYTHON)-config,python-config)
200override PYTHON_CONFIG := \
201 $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON2_CONFIG))
202
203grep-libs = $(filter -l%,$(1))
204strip-libs = $(filter-out -l%,$(1))
205
206PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
207
208ifdef PYTHON_CONFIG
209 PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null)
210 PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
211 PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
212 PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null)
213 FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
214endif
215
216FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
217FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
218FEATURE_CHECK_CFLAGS-libpython-version := $(PYTHON_EMBED_CCOPTS)
219FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS)
220
221CFLAGS += -fno-omit-frame-pointer
222CFLAGS += -ggdb3
223CFLAGS += -funwind-tables
224CFLAGS += -Wall
225CFLAGS += -Wextra
226CFLAGS += -std=gnu99
227
228CXXFLAGS += -std=gnu++11 -fno-exceptions -fno-rtti
229CXXFLAGS += -Wall
230CXXFLAGS += -fno-omit-frame-pointer
231CXXFLAGS += -ggdb3
232CXXFLAGS += -funwind-tables
233CXXFLAGS += -Wno-strict-aliasing
234
235# Enforce a non-executable stack, as we may regress (again) in the future by
236# adding assembler files missing the .GNU-stack linker note.
237LDFLAGS += -Wl,-z,noexecstack
238
239EXTLIBS = -lpthread -lrt -lm -ldl
240
241ifeq ($(FEATURES_DUMP),)
242include $(srctree)/tools/build/Makefile.feature
243else
244include $(FEATURES_DUMP)
245endif
246
247ifeq ($(feature-stackprotector-all), 1)
248 CFLAGS += -fstack-protector-all
249endif
250
251ifeq ($(DEBUG),0)
252 ifeq ($(feature-fortify-source), 1)
253 CFLAGS += -D_FORTIFY_SOURCE=2
254 endif
255endif
256
257INC_FLAGS += -I$(src-perf)/util/include
258INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
259INC_FLAGS += -I$(srctree)/tools/include/uapi
260INC_FLAGS += -I$(srctree)/tools/include/
261INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
262INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
263INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
264
265# $(obj-perf) for generated common-cmds.h
266# $(obj-perf)/util for generated bison/flex headers
267ifneq ($(OUTPUT),)
268INC_FLAGS += -I$(obj-perf)/util
269INC_FLAGS += -I$(obj-perf)
270endif
271
272INC_FLAGS += -I$(src-perf)/util
273INC_FLAGS += -I$(src-perf)
274INC_FLAGS += -I$(srctree)/tools/lib/
275
276CFLAGS += $(INC_FLAGS)
277CXXFLAGS += $(INC_FLAGS)
278
279CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
280
281ifeq ($(feature-sync-compare-and-swap), 1)
282 CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT
283endif
284
285ifeq ($(feature-pthread-attr-setaffinity-np), 1)
286 CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
287endif
288
289ifeq ($(feature-pthread-barrier), 1)
290 CFLAGS += -DHAVE_PTHREAD_BARRIER
291endif
292
293ifndef NO_BIONIC
294 $(call feature_check,bionic)
295 ifeq ($(feature-bionic), 1)
296 BIONIC := 1
297 EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
298 EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
299 endif
300endif
301
302ifeq ($(feature-get_current_dir_name), 1)
303 CFLAGS += -DHAVE_GET_CURRENT_DIR_NAME
304endif
305
306
307ifdef NO_LIBELF
308 NO_DWARF := 1
309 NO_DEMANGLE := 1
310 NO_LIBUNWIND := 1
311 NO_LIBDW_DWARF_UNWIND := 1
312 NO_LIBBPF := 1
313 NO_JVMTI := 1
314else
315 ifeq ($(feature-libelf), 0)
316 ifeq ($(feature-glibc), 1)
317 LIBC_SUPPORT := 1
318 endif
319 ifeq ($(BIONIC),1)
320 LIBC_SUPPORT := 1
321 endif
322 ifeq ($(LIBC_SUPPORT),1)
323 msg := $(warning No libelf found. Disables 'probe' tool, jvmti and BPF support in 'perf record'. Please install libelf-dev, libelf-devel or elfutils-libelf-devel);
324
325 NO_LIBELF := 1
326 NO_DWARF := 1
327 NO_DEMANGLE := 1
328 NO_LIBUNWIND := 1
329 NO_LIBDW_DWARF_UNWIND := 1
330 NO_LIBBPF := 1
331 NO_JVMTI := 1
332 else
333 ifneq ($(filter s% -static%,$(LDFLAGS),),)
334 msg := $(error No static glibc found, please install glibc-static);
335 else
336 msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
337 endif
338 endif
339 else
340 ifndef NO_LIBDW_DWARF_UNWIND
341 ifneq ($(feature-libdw-dwarf-unwind),1)
342 NO_LIBDW_DWARF_UNWIND := 1
343 msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
344 endif
345 endif
346 ifneq ($(feature-dwarf), 1)
347 ifndef NO_DWARF
348 msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
349 NO_DWARF := 1
350 endif
351 else
352 ifneq ($(feature-dwarf_getlocations), 1)
353 msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
354 else
355 CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
356 endif # dwarf_getlocations
357 endif # Dwarf support
358 endif # libelf support
359endif # NO_LIBELF
360
361ifeq ($(feature-glibc), 1)
362 CFLAGS += -DHAVE_GLIBC_SUPPORT
363endif
364
365ifdef NO_DWARF
366 NO_LIBDW_DWARF_UNWIND := 1
367endif
368
369ifeq ($(feature-sched_getcpu), 1)
370 CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
371endif
372
373ifeq ($(feature-setns), 1)
374 CFLAGS += -DHAVE_SETNS_SUPPORT
375 $(call detected,CONFIG_SETNS)
376endif
377
378ifndef NO_CORESIGHT
379 ifeq ($(feature-libopencsd), 1)
380 CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
381 LDFLAGS += $(LIBOPENCSD_LDFLAGS)
382 EXTLIBS += $(OPENCSDLIBS)
383 $(call detected,CONFIG_LIBOPENCSD)
384 ifdef CSTRACE_RAW
385 CFLAGS += -DCS_DEBUG_RAW
386 ifeq (${CSTRACE_RAW}, packed)
387 CFLAGS += -DCS_RAW_PACKED
388 endif
389 endif
390 endif
391endif
392
393ifndef NO_LIBELF
394 CFLAGS += -DHAVE_LIBELF_SUPPORT
395 EXTLIBS += -lelf
396 $(call detected,CONFIG_LIBELF)
397
398 ifeq ($(feature-libelf-mmap), 1)
399 CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
400 endif
401
402 ifeq ($(feature-libelf-getphdrnum), 1)
403 CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
404 endif
405
406 ifeq ($(feature-libelf-gelf_getnote), 1)
407 CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
408 else
409 msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
410 endif
411
412 ifeq ($(feature-libelf-getshdrstrndx), 1)
413 CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
414 endif
415
416 ifndef NO_DWARF
417 ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
418 msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
419 NO_DWARF := 1
420 else
421 CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
422 LDFLAGS += $(LIBDW_LDFLAGS)
423 EXTLIBS += ${DWARFLIBS}
424 $(call detected,CONFIG_DWARF)
425 endif # PERF_HAVE_DWARF_REGS
426 endif # NO_DWARF
427
428 ifndef NO_LIBBPF
429 ifeq ($(feature-bpf), 1)
430 CFLAGS += -DHAVE_LIBBPF_SUPPORT
431 $(call detected,CONFIG_LIBBPF)
432 endif
433
434 ifndef NO_DWARF
435 ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
436 CFLAGS += -DHAVE_BPF_PROLOGUE
437 $(call detected,CONFIG_BPF_PROLOGUE)
438 else
439 msg := $(warning BPF prologue is not supported by architecture $(SRCARCH), missing regs_query_register_offset());
440 endif
441 else
442 msg := $(warning DWARF support is off, BPF prologue is disabled);
443 endif
444
445 endif # NO_LIBBPF
446endif # NO_LIBELF
447
448ifndef NO_SDT
449 ifneq ($(feature-sdt), 1)
450 msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
451 NO_SDT := 1;
452 else
453 CFLAGS += -DHAVE_SDT_EVENT
454 $(call detected,CONFIG_SDT_EVENT)
455 endif
456endif
457
458ifdef PERF_HAVE_JITDUMP
459 ifndef NO_LIBELF
460 $(call detected,CONFIG_JITDUMP)
461 CFLAGS += -DHAVE_JITDUMP
462 endif
463endif
464
465ifeq ($(SRCARCH),powerpc)
466 ifndef NO_DWARF
467 CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
468 endif
469endif
470
471ifndef NO_LIBUNWIND
472 have_libunwind :=
473
474 ifeq ($(feature-libunwind-x86), 1)
475 $(call detected,CONFIG_LIBUNWIND_X86)
476 CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
477 LDFLAGS += -lunwind-x86
478 EXTLIBS_LIBUNWIND += -lunwind-x86
479 have_libunwind = 1
480 endif
481
482 ifeq ($(feature-libunwind-aarch64), 1)
483 $(call detected,CONFIG_LIBUNWIND_AARCH64)
484 CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
485 LDFLAGS += -lunwind-aarch64
486 EXTLIBS_LIBUNWIND += -lunwind-aarch64
487 have_libunwind = 1
488 $(call feature_check,libunwind-debug-frame-aarch64)
489 ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
490 msg := $(warning No debug_frame support found in libunwind-aarch64);
491 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
492 endif
493 endif
494
495 ifneq ($(feature-libunwind), 1)
496 msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
497 NO_LOCAL_LIBUNWIND := 1
498 else
499 have_libunwind := 1
500 $(call detected,CONFIG_LOCAL_LIBUNWIND)
501 endif
502
503 ifneq ($(have_libunwind), 1)
504 NO_LIBUNWIND := 1
505 endif
506else
507 NO_LOCAL_LIBUNWIND := 1
508endif
509
510ifndef NO_LIBBPF
511 ifneq ($(feature-bpf), 1)
512 msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
513 NO_LIBBPF := 1
514 endif
515endif
516
517dwarf-post-unwind := 1
518dwarf-post-unwind-text := BUG
519
520# setup DWARF post unwinder
521ifdef NO_LIBUNWIND
522 ifdef NO_LIBDW_DWARF_UNWIND
523 msg := $(warning Disabling post unwind, no support found.);
524 dwarf-post-unwind := 0
525 else
526 dwarf-post-unwind-text := libdw
527 $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
528 endif
529else
530 dwarf-post-unwind-text := libunwind
531 $(call detected,CONFIG_LIBUNWIND)
532 # Enable libunwind support by default.
533 ifndef NO_LIBDW_DWARF_UNWIND
534 NO_LIBDW_DWARF_UNWIND := 1
535 endif
536endif
537
538ifeq ($(dwarf-post-unwind),1)
539 CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
540 $(call detected,CONFIG_DWARF_UNWIND)
541else
542 NO_DWARF_UNWIND := 1
543endif
544
545ifndef NO_LOCAL_LIBUNWIND
546 ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
547 $(call feature_check,libunwind-debug-frame)
548 ifneq ($(feature-libunwind-debug-frame), 1)
549 msg := $(warning No debug_frame support found in libunwind);
550 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
551 endif
552 else
553 # non-ARM has no dwarf_find_debug_frame() function:
554 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
555 endif
556 EXTLIBS += $(LIBUNWIND_LIBS)
557 LDFLAGS += $(LIBUNWIND_LIBS)
558endif
559ifeq ($(findstring -static,${LDFLAGS}),-static)
560 # gcc -static links libgcc_eh which contans piece of libunwind
561 LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
562endif
563
564ifndef NO_LIBUNWIND
565 CFLAGS += -DHAVE_LIBUNWIND_SUPPORT
566 CFLAGS += $(LIBUNWIND_CFLAGS)
567 LDFLAGS += $(LIBUNWIND_LDFLAGS)
568 EXTLIBS += $(EXTLIBS_LIBUNWIND)
569endif
570
571ifeq ($(NO_SYSCALL_TABLE),0)
572 $(call detected,CONFIG_TRACE)
573else
574 ifndef NO_LIBAUDIT
575 ifneq ($(feature-libaudit), 1)
576 msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
577 NO_LIBAUDIT := 1
578 else
579 CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
580 EXTLIBS += -laudit
581 $(call detected,CONFIG_TRACE)
582 endif
583 endif
584endif
585
586ifndef NO_LIBCRYPTO
587 ifneq ($(feature-libcrypto), 1)
588 msg := $(warning No libcrypto.h found, disables jitted code injection, please install libssl-devel or libssl-dev);
589 NO_LIBCRYPTO := 1
590 else
591 CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
592 EXTLIBS += -lcrypto
593 $(call detected,CONFIG_CRYPTO)
594 endif
595endif
596
597ifdef NO_NEWT
598 NO_SLANG=1
599endif
600
601ifndef NO_SLANG
602 ifneq ($(feature-libslang), 1)
603 msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
604 NO_SLANG := 1
605 else
606 # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
607 CFLAGS += -I/usr/include/slang
608 CFLAGS += -DHAVE_SLANG_SUPPORT
609 EXTLIBS += -lslang
610 $(call detected,CONFIG_SLANG)
611 endif
612endif
613
614ifndef NO_GTK2
615 FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
616 ifneq ($(feature-gtk2), 1)
617 msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
618 NO_GTK2 := 1
619 else
620 ifeq ($(feature-gtk2-infobar), 1)
621 GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
622 endif
623 CFLAGS += -DHAVE_GTK2_SUPPORT
624 GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
625 GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
626 EXTLIBS += -ldl
627 endif
628endif
629
630ifdef NO_LIBPERL
631 CFLAGS += -DNO_LIBPERL
632else
633 PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
634 PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
635 PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
636 PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
637 PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
638 PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
639 FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
640
641 ifneq ($(feature-libperl), 1)
642 CFLAGS += -DNO_LIBPERL
643 NO_LIBPERL := 1
644 msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
645 else
646 LDFLAGS += $(PERL_EMBED_LDFLAGS)
647 EXTLIBS += $(PERL_EMBED_LIBADD)
648 CFLAGS += -DHAVE_LIBPERL_SUPPORT
649 $(call detected,CONFIG_LIBPERL)
650 endif
651endif
652
653ifeq ($(feature-timerfd), 1)
654 CFLAGS += -DHAVE_TIMERFD_SUPPORT
655else
656 msg := $(warning No timerfd support. Disables 'perf kvm stat live');
657endif
658
659disable-python = $(eval $(disable-python_code))
660define disable-python_code
661 CFLAGS += -DNO_LIBPYTHON
662 $(warning $1)
663 NO_LIBPYTHON := 1
664endef
665
666ifdef NO_LIBPYTHON
667 $(call disable-python,Python support disabled by user)
668else
669
670 ifndef PYTHON
671 $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
672 else
673 PYTHON_WORD := $(call shell-wordify,$(PYTHON))
674
675 ifndef PYTHON_CONFIG
676 $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
677 else
678
679 ifneq ($(feature-libpython), 1)
680 $(call disable-python,No 'Python.h' (for Python 2.x support) was found: disables Python support - please install python-devel/python-dev)
681 else
682 LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
683 EXTLIBS += $(PYTHON_EMBED_LIBADD)
684 LANG_BINDINGS += $(obj-perf)python/perf.so
685 CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
686 $(call detected,CONFIG_LIBPYTHON)
687 endif
688 endif
689 endif
690endif
691
692ifeq ($(feature-libbfd), 1)
693 EXTLIBS += -lbfd
694
695 # call all detections now so we get correct
696 # status in VF output
697 $(call feature_check,liberty)
698 $(call feature_check,liberty-z)
699 $(call feature_check,cplus-demangle)
700
701 ifeq ($(feature-liberty), 1)
702 EXTLIBS += -liberty
703 else
704 ifeq ($(feature-liberty-z), 1)
705 EXTLIBS += -liberty -lz
706 endif
707 endif
708endif
709
710ifdef NO_DEMANGLE
711 CFLAGS += -DNO_DEMANGLE
712else
713 ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
714 EXTLIBS += -liberty
715 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
716 else
717 ifneq ($(feature-libbfd), 1)
718 ifneq ($(feature-liberty), 1)
719 ifneq ($(feature-liberty-z), 1)
720 # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
721 # or any of 'bfd iberty z' trinity
722 ifeq ($(feature-cplus-demangle), 1)
723 EXTLIBS += -liberty
724 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
725 else
726 msg := $(warning No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling)
727 CFLAGS += -DNO_DEMANGLE
728 endif
729 endif
730 endif
731 endif
732 endif
733endif
734
735ifneq ($(filter -lbfd,$(EXTLIBS)),)
736 CFLAGS += -DHAVE_LIBBFD_SUPPORT
737endif
738
739ifndef NO_ZLIB
740 ifeq ($(feature-zlib), 1)
741 CFLAGS += -DHAVE_ZLIB_SUPPORT
742 EXTLIBS += -lz
743 $(call detected,CONFIG_ZLIB)
744 else
745 NO_ZLIB := 1
746 endif
747endif
748
749ifndef NO_LZMA
750 ifeq ($(feature-lzma), 1)
751 CFLAGS += -DHAVE_LZMA_SUPPORT
752 EXTLIBS += -llzma
753 $(call detected,CONFIG_LZMA)
754 else
755 msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
756 NO_LZMA := 1
757 endif
758endif
759
760ifndef NO_BACKTRACE
761 ifeq ($(feature-backtrace), 1)
762 CFLAGS += -DHAVE_BACKTRACE_SUPPORT
763 endif
764endif
765
766ifndef NO_LIBNUMA
767 ifeq ($(feature-libnuma), 0)
768 msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
769 NO_LIBNUMA := 1
770 else
771 ifeq ($(feature-numa_num_possible_cpus), 0)
772 msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
773 NO_LIBNUMA := 1
774 else
775 CFLAGS += -DHAVE_LIBNUMA_SUPPORT
776 EXTLIBS += -lnuma
777 $(call detected,CONFIG_NUMA)
778 endif
779 endif
780endif
781
782ifdef HAVE_KVM_STAT_SUPPORT
783 CFLAGS += -DHAVE_KVM_STAT_SUPPORT
784endif
785
786ifeq (${IS_64_BIT}, 1)
787 ifndef NO_PERF_READ_VDSO32
788 $(call feature_check,compile-32)
789 ifeq ($(feature-compile-32), 1)
790 CFLAGS += -DHAVE_PERF_READ_VDSO32
791 else
792 NO_PERF_READ_VDSO32 := 1
793 endif
794 endif
795 ifneq ($(SRCARCH), x86)
796 NO_PERF_READ_VDSOX32 := 1
797 endif
798 ifndef NO_PERF_READ_VDSOX32
799 $(call feature_check,compile-x32)
800 ifeq ($(feature-compile-x32), 1)
801 CFLAGS += -DHAVE_PERF_READ_VDSOX32
802 else
803 NO_PERF_READ_VDSOX32 := 1
804 endif
805 endif
806else
807 NO_PERF_READ_VDSO32 := 1
808 NO_PERF_READ_VDSOX32 := 1
809endif
810
811ifndef NO_LIBBABELTRACE
812 $(call feature_check,libbabeltrace)
813 ifeq ($(feature-libbabeltrace), 1)
814 CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
815 LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
816 EXTLIBS += -lbabeltrace-ctf
817 $(call detected,CONFIG_LIBBABELTRACE)
818 else
819 msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
820 endif
821endif
822
823ifndef NO_AUXTRACE
824 ifeq ($(SRCARCH),x86)
825 ifeq ($(feature-get_cpuid), 0)
826 msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
827 NO_AUXTRACE := 1
828 endif
829 endif
830 ifndef NO_AUXTRACE
831 $(call detected,CONFIG_AUXTRACE)
832 CFLAGS += -DHAVE_AUXTRACE_SUPPORT
833 endif
834endif
835
836ifndef NO_JVMTI
837 ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
838 JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
839 else
840 ifneq (,$(wildcard /usr/sbin/alternatives))
841 JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed 's%/jre/bin/java.%%g')
842 endif
843 endif
844 ifndef JDIR
845 $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
846 NO_JVMTI := 1
847 endif
848endif
849
850ifndef NO_JVMTI
851 FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
852 $(call feature_check,jvmti)
853 ifeq ($(feature-jvmti), 1)
854 $(call detected_var,JDIR)
855 else
856 $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
857 NO_JVMTI := 1
858 endif
859endif
860
861USE_CXX = 0
862USE_CLANGLLVM = 0
863ifdef LIBCLANGLLVM
864 $(call feature_check,cxx)
865 ifneq ($(feature-cxx), 1)
866 msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
867 else
868 $(call feature_check,llvm)
869 $(call feature_check,llvm-version)
870 ifneq ($(feature-llvm), 1)
871 msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
872 else
873 $(call feature_check,clang)
874 ifneq ($(feature-clang), 1)
875 msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
876 else
877 CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
878 CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
879 $(call detected,CONFIG_CXX)
880 $(call detected,CONFIG_CLANGLLVM)
881 USE_CXX = 1
882 USE_LLVM = 1
883 USE_CLANG = 1
884 ifneq ($(feature-llvm-version),1)
885 msg := $(warning This version of LLVM is not tested. May cause build errors)
886 endif
887 endif
888 endif
889 endif
890endif
891
892# Among the variables below, these:
893# perfexecdir
894# perf_include_dir
895# perf_examples_dir
896# template_dir
897# mandir
898# infodir
899# htmldir
900# ETC_PERFCONFIG (but not sysconfdir)
901# can be specified as a relative path some/where/else;
902# this is interpreted as relative to $(prefix) and "perf" at
903# runtime figures out where they are based on the path to the executable.
904# This can help installing the suite in a relocatable way.
905
906# Make the path relative to DESTDIR, not to prefix
907ifndef DESTDIR
908prefix ?= $(HOME)
909endif
910bindir_relative = bin
911bindir = $(abspath $(prefix)/$(bindir_relative))
912mandir = share/man
913infodir = share/info
914perfexecdir = libexec/perf-core
915perf_include_dir = lib/perf/include
916perf_examples_dir = lib/perf/examples
917sharedir = $(prefix)/share
918template_dir = share/perf-core/templates
919STRACE_GROUPS_DIR = share/perf-core/strace/groups
920htmldir = share/doc/perf-doc
921tipdir = share/doc/perf-tip
922srcdir = $(srctree)/tools/perf
923ifeq ($(prefix),/usr)
924sysconfdir = /etc
925ETC_PERFCONFIG = $(sysconfdir)/perfconfig
926else
927sysconfdir = $(prefix)/etc
928ETC_PERFCONFIG = etc/perfconfig
929endif
930ifndef lib
931ifeq ($(SRCARCH)$(IS_64_BIT), x861)
932lib = lib64
933else
934lib = lib
935endif
936endif # lib
937libdir = $(prefix)/$(lib)
938
939# Shell quote (do not use $(call) to accommodate ancient setups);
940ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
941STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
942DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
943bindir_SQ = $(subst ','\'',$(bindir))
944mandir_SQ = $(subst ','\'',$(mandir))
945infodir_SQ = $(subst ','\'',$(infodir))
946perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
947perf_include_dir_SQ = $(subst ','\'',$(perf_include_dir))
948perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
949template_dir_SQ = $(subst ','\'',$(template_dir))
950htmldir_SQ = $(subst ','\'',$(htmldir))
951tipdir_SQ = $(subst ','\'',$(tipdir))
952prefix_SQ = $(subst ','\'',$(prefix))
953sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
954libdir_SQ = $(subst ','\'',$(libdir))
955srcdir_SQ = $(subst ','\'',$(srcdir))
956
957ifneq ($(filter /%,$(firstword $(perfexecdir))),)
958perfexec_instdir = $(perfexecdir)
959perf_include_instdir = $(perf_include_dir)
960perf_examples_instdir = $(perf_examples_dir)
961STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
962tip_instdir = $(tipdir)
963else
964perfexec_instdir = $(prefix)/$(perfexecdir)
965perf_include_instdir = $(prefix)/$(perf_include_dir)
966perf_examples_instdir = $(prefix)/$(perf_examples_dir)
967STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
968tip_instdir = $(prefix)/$(tipdir)
969endif
970perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
971perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
972perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
973STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
974tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
975
976# If we install to $(HOME) we keep the traceevent default:
977# $(HOME)/.traceevent/plugins
978# Otherwise we install plugins into the global $(libdir).
979ifdef DESTDIR
980plugindir=$(libdir)/traceevent/plugins
981plugindir_SQ= $(subst ','\'',$(plugindir))
982endif
983
984print_var = $(eval $(print_var_code)) $(info $(MSG))
985define print_var_code
986 MSG = $(shell printf '...%30s: %s' $(1) $($(1)))
987endef
988
989ifeq ($(VF),1)
990 # Display EXTRA features which are detected manualy
991 # from here with feature_check call and thus cannot
992 # be partof global state output.
993 $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),))
994 $(call print_var,prefix)
995 $(call print_var,bindir)
996 $(call print_var,libdir)
997 $(call print_var,sysconfdir)
998 $(call print_var,LIBUNWIND_DIR)
999 $(call print_var,LIBDW_DIR)
1000 $(call print_var,JDIR)
1001
1002 ifeq ($(dwarf-post-unwind),1)
1003 $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
1004 endif
1005 $(info )
1006endif
1007
1008$(call detected_var,bindir_SQ)
1009$(call detected_var,PYTHON_WORD)
1010ifneq ($(OUTPUT),)
1011$(call detected_var,OUTPUT)
1012endif
1013$(call detected_var,htmldir_SQ)
1014$(call detected_var,infodir_SQ)
1015$(call detected_var,mandir_SQ)
1016$(call detected_var,ETC_PERFCONFIG_SQ)
1017$(call detected_var,STRACE_GROUPS_DIR_SQ)
1018$(call detected_var,prefix_SQ)
1019$(call detected_var,perfexecdir_SQ)
1020$(call detected_var,perf_include_dir_SQ)
1021$(call detected_var,perf_examples_dir_SQ)
1022$(call detected_var,tipdir_SQ)
1023$(call detected_var,srcdir_SQ)
1024$(call detected_var,LIBDIR)
1025$(call detected_var,GTK_CFLAGS)
1026$(call detected_var,PERL_EMBED_CCOPTS)
1027$(call detected_var,PYTHON_EMBED_CCOPTS)