Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
1# SPDX-License-Identifier: GPL-2.0-only
2
3ifeq ($(src-perf),)
4src-perf := $(srctree)/tools/perf
5endif
6
7ifeq ($(obj-perf),)
8obj-perf := $(OUTPUT)
9endif
10
11ifneq ($(obj-perf),)
12obj-perf := $(abspath $(obj-perf))/
13endif
14
15$(shell printf "" > $(OUTPUT).config-detected)
16detected = $(shell echo "$(1)=y" >> $(OUTPUT).config-detected)
17detected_var = $(shell echo "$(1)=$($(1))" >> $(OUTPUT).config-detected)
18
19CFLAGS := $(EXTRA_CFLAGS) $(filter-out -Wnested-externs,$(EXTRA_WARNINGS))
20HOSTCFLAGS := $(filter-out -Wnested-externs,$(EXTRA_WARNINGS))
21
22# Enabled Wthread-safety analysis for clang builds.
23ifeq ($(CC_NO_CLANG), 0)
24 CFLAGS += -Wthread-safety
25endif
26
27include $(srctree)/tools/scripts/Makefile.arch
28
29$(call detected_var,SRCARCH)
30
31NO_PERF_REGS := 1
32
33ifneq ($(NO_SYSCALL_TABLE),1)
34 NO_SYSCALL_TABLE := 1
35
36 ifeq ($(SRCARCH),x86)
37 ifeq (${IS_64_BIT}, 1)
38 NO_SYSCALL_TABLE := 0
39 endif
40 else
41 ifeq ($(SRCARCH),$(filter $(SRCARCH),powerpc arm64 s390 mips loongarch))
42 NO_SYSCALL_TABLE := 0
43 endif
44 endif
45
46 ifneq ($(NO_SYSCALL_TABLE),1)
47 CFLAGS += -DHAVE_SYSCALL_TABLE_SUPPORT
48 endif
49endif
50
51# Additional ARCH settings for ppc
52ifeq ($(SRCARCH),powerpc)
53 NO_PERF_REGS := 0
54 CFLAGS += -I$(OUTPUT)arch/powerpc/include/generated
55 LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
56endif
57
58# Additional ARCH settings for x86
59ifeq ($(SRCARCH),x86)
60 $(call detected,CONFIG_X86)
61 ifeq (${IS_64_BIT}, 1)
62 CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT -I$(OUTPUT)arch/x86/include/generated
63 ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
64 LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma
65 $(call detected,CONFIG_X86_64)
66 else
67 LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
68 endif
69 NO_PERF_REGS := 0
70endif
71
72ifeq ($(SRCARCH),arm)
73 NO_PERF_REGS := 0
74 LIBUNWIND_LIBS = -lunwind -lunwind-arm
75endif
76
77ifeq ($(SRCARCH),arm64)
78 NO_PERF_REGS := 0
79 CFLAGS += -I$(OUTPUT)arch/arm64/include/generated
80 LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
81endif
82
83ifeq ($(SRCARCH),loongarch)
84 NO_PERF_REGS := 0
85 CFLAGS += -I$(OUTPUT)arch/loongarch/include/generated
86 LIBUNWIND_LIBS = -lunwind -lunwind-loongarch64
87endif
88
89ifeq ($(SRCARCH),riscv)
90 NO_PERF_REGS := 0
91endif
92
93ifeq ($(SRCARCH),csky)
94 NO_PERF_REGS := 0
95endif
96
97ifeq ($(ARCH),s390)
98 NO_PERF_REGS := 0
99 CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
100endif
101
102ifeq ($(ARCH),mips)
103 NO_PERF_REGS := 0
104 CFLAGS += -I$(OUTPUT)arch/mips/include/generated
105 LIBUNWIND_LIBS = -lunwind -lunwind-mips
106endif
107
108ifeq ($(NO_PERF_REGS),0)
109 $(call detected,CONFIG_PERF_REGS)
110endif
111
112# So far there's only x86 and arm libdw unwind support merged in perf.
113# Disable it on all other architectures in case libdw unwind
114# support is detected in system. Add supported architectures
115# to the check.
116ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky riscv loongarch))
117 NO_LIBDW_DWARF_UNWIND := 1
118endif
119
120ifeq ($(LIBUNWIND_LIBS),)
121 NO_LIBUNWIND := 1
122endif
123#
124# For linking with debug library, run like:
125#
126# make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
127#
128
129libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
130define libunwind_arch_set_flags_code
131 FEATURE_CHECK_CFLAGS-libunwind-$(1) = -I$(LIBUNWIND_DIR)/include
132 FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
133endef
134
135ifdef LIBUNWIND_DIR
136 LIBUNWIND_CFLAGS = -I$(LIBUNWIND_DIR)/include
137 LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
138 LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64 loongarch
139 $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
140endif
141
142# Set per-feature check compilation flags
143FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
144FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
145FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
146FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
147
148FEATURE_CHECK_LDFLAGS-libunwind-arm += -lunwind -lunwind-arm
149FEATURE_CHECK_LDFLAGS-libunwind-aarch64 += -lunwind -lunwind-aarch64
150FEATURE_CHECK_LDFLAGS-libunwind-x86 += -lunwind -llzma -lunwind-x86
151FEATURE_CHECK_LDFLAGS-libunwind-x86_64 += -lunwind -llzma -lunwind-x86_64
152
153FEATURE_CHECK_LDFLAGS-libcrypto = -lcrypto
154
155ifdef CSINCLUDES
156 LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
157endif
158OPENCSDLIBS := -lopencsd_c_api -lopencsd
159ifeq ($(findstring -static,${LDFLAGS}),-static)
160 OPENCSDLIBS += -lstdc++
161endif
162ifdef CSLIBS
163 LIBOPENCSD_LDFLAGS := -L$(CSLIBS)
164endif
165FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
166FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
167
168ifeq ($(NO_PERF_REGS),0)
169 CFLAGS += -DHAVE_PERF_REGS_SUPPORT
170endif
171
172# for linking with debug library, run like:
173# make DEBUG=1 LIBDW_DIR=/opt/libdw/
174ifdef LIBDW_DIR
175 LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
176 LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
177endif
178DWARFLIBS := -ldw
179ifeq ($(findstring -static,${LDFLAGS}),-static)
180 DWARFLIBS += -lelf -lebl -ldl -lz -llzma -lbz2
181endif
182FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
183FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
184
185# for linking with debug library, run like:
186# make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
187ifdef LIBBABELTRACE_DIR
188 LIBBABELTRACE_CFLAGS := -I$(LIBBABELTRACE_DIR)/include
189 LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
190endif
191FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
192FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
193
194ifdef LIBZSTD_DIR
195 LIBZSTD_CFLAGS := -I$(LIBZSTD_DIR)/lib
196 LIBZSTD_LDFLAGS := -L$(LIBZSTD_DIR)/lib
197endif
198FEATURE_CHECK_CFLAGS-libzstd := $(LIBZSTD_CFLAGS)
199FEATURE_CHECK_LDFLAGS-libzstd := $(LIBZSTD_LDFLAGS)
200
201FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
202# include ARCH specific config
203-include $(src-perf)/arch/$(SRCARCH)/Makefile
204
205ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
206 CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
207endif
208
209include $(srctree)/tools/scripts/utilities.mak
210
211ifeq ($(call get-executable,$(FLEX)),)
212 dummy := $(error Error: $(FLEX) is missing on this system, please install it)
213endif
214
215ifeq ($(call get-executable,$(BISON)),)
216 dummy := $(error Error: $(BISON) is missing on this system, please install it)
217endif
218
219ifeq ($(BUILD_BPF_SKEL),1)
220 ifeq ($(call get-executable,$(CLANG)),)
221 dummy := $(error $(CLANG) is missing on this system, please install it to be able to build with BUILD_BPF_SKEL=1)
222 endif
223endif
224
225ifneq ($(OUTPUT),)
226 ifeq ($(shell expr $(shell $(BISON) --version | grep bison | sed -e 's/.\+ \([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/\1\2\3/g') \>\= 371), 1)
227 BISON_FILE_PREFIX_MAP := --file-prefix-map=$(OUTPUT)=
228 endif
229endif
230
231# Treat warnings as errors unless directed not to
232ifneq ($(WERROR),0)
233 CORE_CFLAGS += -Werror
234 CXXFLAGS += -Werror
235 HOSTCFLAGS += -Werror
236endif
237
238ifndef DEBUG
239 DEBUG := 0
240endif
241
242ifeq ($(DEBUG),0)
243CORE_CFLAGS += -DNDEBUG=1
244ifeq ($(CC_NO_CLANG), 0)
245 CORE_CFLAGS += -O3
246else
247 CORE_CFLAGS += -O6
248endif
249endif
250
251ifdef PARSER_DEBUG
252 PARSER_DEBUG_BISON := -t
253 PARSER_DEBUG_FLEX := -d
254 CFLAGS += -DPARSER_DEBUG
255 $(call detected_var,PARSER_DEBUG_BISON)
256 $(call detected_var,PARSER_DEBUG_FLEX)
257endif
258
259# Try different combinations to accommodate systems that only have
260# python[2][3]-config in weird combinations in the following order of
261# priority from lowest to highest:
262# * python2-config as per pep-0394.
263# * python-config
264# * python3-config
265# * $(PYTHON)-config (If PYTHON is user supplied but PYTHON_CONFIG isn't)
266#
267PYTHON_AUTO := python-config
268PYTHON_AUTO := $(if $(call get-executable,python2-config),python2-config,$(PYTHON_AUTO))
269PYTHON_AUTO := $(if $(call get-executable,python-config),python-config,$(PYTHON_AUTO))
270PYTHON_AUTO := $(if $(call get-executable,python3-config),python3-config,$(PYTHON_AUTO))
271
272# If PYTHON is defined but PYTHON_CONFIG isn't, then take $(PYTHON)-config as if it was the user
273# supplied value for PYTHON_CONFIG. Because it's "user supplied", error out if it doesn't exist.
274ifdef PYTHON
275 ifndef PYTHON_CONFIG
276 PYTHON_CONFIG_AUTO := $(call get-executable,$(PYTHON)-config)
277 PYTHON_CONFIG := $(if $(PYTHON_CONFIG_AUTO),$(PYTHON_CONFIG_AUTO),\
278 $(call $(error $(PYTHON)-config not found)))
279 endif
280endif
281
282# Select either auto detected python and python-config or use user supplied values if they are
283# defined. get-executable-or-default fails with an error if the first argument is supplied but
284# doesn't exist.
285override PYTHON_CONFIG := $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON_AUTO))
286override PYTHON := $(call get-executable-or-default,PYTHON,$(subst -config,,$(PYTHON_CONFIG)))
287
288grep-libs = $(filter -l%,$(1))
289strip-libs = $(filter-out -l%,$(1))
290
291PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
292
293# Python 3.8 changed the output of `python-config --ldflags` to not include the
294# '-lpythonX.Y' flag unless '--embed' is also passed. The feature check for
295# libpython fails if that flag is not included in LDFLAGS
296ifeq ($(shell $(PYTHON_CONFIG_SQ) --ldflags --embed 2>&1 1>/dev/null; echo $$?), 0)
297 PYTHON_CONFIG_LDFLAGS := --ldflags --embed
298else
299 PYTHON_CONFIG_LDFLAGS := --ldflags
300endif
301
302ifdef PYTHON_CONFIG
303 PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) $(PYTHON_CONFIG_LDFLAGS) 2>/dev/null)
304 PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
305 PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
306 PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null)
307 FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
308 ifeq ($(CC_NO_CLANG), 0)
309 PYTHON_EMBED_CCOPTS := $(filter-out -ffat-lto-objects, $(PYTHON_EMBED_CCOPTS))
310 endif
311endif
312
313FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
314FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
315
316FEATURE_CHECK_LDFLAGS-libaio = -lrt
317
318FEATURE_CHECK_LDFLAGS-disassembler-four-args = -lbfd -lopcodes -ldl
319FEATURE_CHECK_LDFLAGS-disassembler-init-styled = -lbfd -lopcodes -ldl
320
321CORE_CFLAGS += -fno-omit-frame-pointer
322CORE_CFLAGS += -ggdb3
323CORE_CFLAGS += -funwind-tables
324CORE_CFLAGS += -Wall
325CORE_CFLAGS += -Wextra
326CORE_CFLAGS += -std=gnu11
327
328CXXFLAGS += -std=gnu++14 -fno-exceptions -fno-rtti
329CXXFLAGS += -Wall
330CXXFLAGS += -fno-omit-frame-pointer
331CXXFLAGS += -ggdb3
332CXXFLAGS += -funwind-tables
333CXXFLAGS += -Wno-strict-aliasing
334
335HOSTCFLAGS += -Wall
336HOSTCFLAGS += -Wextra
337
338# Enforce a non-executable stack, as we may regress (again) in the future by
339# adding assembler files missing the .GNU-stack linker note.
340LDFLAGS += -Wl,-z,noexecstack
341
342EXTLIBS = -lpthread -lrt -lm -ldl
343
344ifneq ($(TCMALLOC),)
345 CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free
346 EXTLIBS += -ltcmalloc
347endif
348
349ifeq ($(FEATURES_DUMP),)
350# We will display at the end of this Makefile.config, using $(call feature_display_entries)
351# As we may retry some feature detection here, see the disassembler-four-args case, for instance
352 FEATURE_DISPLAY_DEFERRED := 1
353include $(srctree)/tools/build/Makefile.feature
354else
355include $(FEATURES_DUMP)
356endif
357
358ifeq ($(feature-stackprotector-all), 1)
359 CORE_CFLAGS += -fstack-protector-all
360endif
361
362ifeq ($(DEBUG),0)
363 ifeq ($(feature-fortify-source), 1)
364 CORE_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
365 endif
366endif
367
368INC_FLAGS += -I$(src-perf)/util/include
369INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
370INC_FLAGS += -I$(srctree)/tools/include/
371INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
372INC_FLAGS += -I$(srctree)/tools/include/uapi
373INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
374INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
375
376# $(obj-perf) for generated common-cmds.h
377# $(obj-perf)/util for generated bison/flex headers
378ifneq ($(OUTPUT),)
379INC_FLAGS += -I$(obj-perf)/util
380INC_FLAGS += -I$(obj-perf)
381endif
382
383INC_FLAGS += -I$(src-perf)/util
384INC_FLAGS += -I$(src-perf)
385
386CORE_CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
387
388CFLAGS += $(CORE_CFLAGS) $(INC_FLAGS)
389CXXFLAGS += $(INC_FLAGS)
390
391LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS)
392
393ifeq ($(feature-pthread-attr-setaffinity-np), 1)
394 CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
395endif
396
397ifeq ($(feature-pthread-barrier), 1)
398 CFLAGS += -DHAVE_PTHREAD_BARRIER
399endif
400
401ifndef NO_BIONIC
402 $(call feature_check,bionic)
403 ifeq ($(feature-bionic), 1)
404 BIONIC := 1
405 CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE
406 CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE
407 EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
408 EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
409 endif
410endif
411
412ifeq ($(feature-eventfd), 1)
413 CFLAGS += -DHAVE_EVENTFD_SUPPORT
414endif
415
416ifeq ($(feature-get_current_dir_name), 1)
417 CFLAGS += -DHAVE_GET_CURRENT_DIR_NAME
418endif
419
420ifeq ($(feature-gettid), 1)
421 CFLAGS += -DHAVE_GETTID
422endif
423
424ifeq ($(feature-file-handle), 1)
425 CFLAGS += -DHAVE_FILE_HANDLE
426endif
427
428ifdef NO_LIBELF
429 NO_DWARF := 1
430 NO_LIBUNWIND := 1
431 NO_LIBDW_DWARF_UNWIND := 1
432 NO_LIBBPF := 1
433 NO_JVMTI := 1
434else
435 ifeq ($(feature-libelf), 0)
436 ifeq ($(feature-glibc), 1)
437 LIBC_SUPPORT := 1
438 endif
439 ifeq ($(BIONIC),1)
440 LIBC_SUPPORT := 1
441 endif
442 ifeq ($(LIBC_SUPPORT),1)
443 msg := $(error ERROR: No libelf found. Disables 'probe' tool, jvmti and BPF support. Please install libelf-dev, libelf-devel, elfutils-libelf-devel or build with NO_LIBELF=1.)
444 else
445 ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
446 ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
447 msg := $(error No libasan found, please install libasan);
448 endif
449 endif
450
451 ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
452 ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
453 msg := $(error No libubsan found, please install libubsan);
454 endif
455 endif
456
457 ifneq ($(filter s% -static%,$(LDFLAGS),),)
458 msg := $(error No static glibc found, please install glibc-static);
459 else
460 msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
461 endif
462 endif
463 else
464 ifndef NO_LIBDW_DWARF_UNWIND
465 ifneq ($(feature-libdw-dwarf-unwind),1)
466 NO_LIBDW_DWARF_UNWIND := 1
467 msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
468 endif
469 endif
470 ifneq ($(feature-dwarf), 1)
471 ifndef NO_DWARF
472 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);
473 NO_DWARF := 1
474 endif
475 else
476 ifneq ($(feature-dwarf_getlocations), 1)
477 msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
478 else
479 CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
480 endif # dwarf_getlocations
481 endif # Dwarf support
482 endif # libelf support
483endif # NO_LIBELF
484
485ifeq ($(feature-libaio), 1)
486 ifndef NO_AIO
487 CFLAGS += -DHAVE_AIO_SUPPORT
488 endif
489endif
490
491ifdef NO_DWARF
492 NO_LIBDW_DWARF_UNWIND := 1
493endif
494
495ifeq ($(feature-scandirat), 1)
496 CFLAGS += -DHAVE_SCANDIRAT_SUPPORT
497endif
498
499ifeq ($(feature-sched_getcpu), 1)
500 CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
501endif
502
503ifeq ($(feature-setns), 1)
504 CFLAGS += -DHAVE_SETNS_SUPPORT
505 $(call detected,CONFIG_SETNS)
506endif
507
508ifdef CORESIGHT
509 $(call feature_check,libopencsd)
510 ifeq ($(feature-libopencsd), 1)
511 CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
512 ifeq ($(feature-reallocarray), 0)
513 CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
514 endif
515 LDFLAGS += $(LIBOPENCSD_LDFLAGS)
516 EXTLIBS += $(OPENCSDLIBS)
517 $(call detected,CONFIG_LIBOPENCSD)
518 ifdef CSTRACE_RAW
519 CFLAGS += -DCS_DEBUG_RAW
520 ifeq (${CSTRACE_RAW}, packed)
521 CFLAGS += -DCS_RAW_PACKED
522 endif
523 endif
524 else
525 dummy := $(error Error: No libopencsd library found or the version is not up-to-date. Please install recent libopencsd to build with CORESIGHT=1)
526 endif
527endif
528
529ifndef NO_LIBELF
530 CFLAGS += -DHAVE_LIBELF_SUPPORT
531 EXTLIBS += -lelf
532 $(call detected,CONFIG_LIBELF)
533
534 ifeq ($(feature-libelf-getphdrnum), 1)
535 CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
536 endif
537
538 ifeq ($(feature-libelf-gelf_getnote), 1)
539 CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
540 else
541 msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
542 endif
543
544 ifeq ($(feature-libelf-getshdrstrndx), 1)
545 CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
546 endif
547
548 ifndef NO_LIBDEBUGINFOD
549 $(call feature_check,libdebuginfod)
550 ifeq ($(feature-libdebuginfod), 1)
551 CFLAGS += -DHAVE_DEBUGINFOD_SUPPORT
552 EXTLIBS += -ldebuginfod
553 endif
554 endif
555
556 ifndef NO_DWARF
557 ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
558 msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
559 NO_DWARF := 1
560 else
561 CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
562 LDFLAGS += $(LIBDW_LDFLAGS)
563 EXTLIBS += ${DWARFLIBS}
564 $(call detected,CONFIG_DWARF)
565 endif # PERF_HAVE_DWARF_REGS
566 endif # NO_DWARF
567
568 ifndef NO_LIBBPF
569 ifeq ($(feature-bpf), 1)
570 CFLAGS += -DHAVE_LIBBPF_SUPPORT
571 $(call detected,CONFIG_LIBBPF)
572
573 # detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
574 $(call feature_check,libbpf)
575
576 ifdef LIBBPF_DYNAMIC
577 ifeq ($(feature-libbpf), 1)
578 EXTLIBS += -lbpf
579 $(call detected,CONFIG_LIBBPF_DYNAMIC)
580 else
581 dummy := $(error Error: No libbpf devel library found or older than v1.0, please install/update libbpf-devel);
582 endif
583 else
584 # Libbpf will be built as a static library from tools/lib/bpf.
585 LIBBPF_STATIC := 1
586 endif
587 endif
588
589 ifndef NO_DWARF
590 ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
591 CFLAGS += -DHAVE_BPF_PROLOGUE
592 $(call detected,CONFIG_BPF_PROLOGUE)
593 else
594 msg := $(warning BPF prologue is not supported by architecture $(SRCARCH), missing regs_query_register_offset());
595 endif
596 else
597 msg := $(warning DWARF support is off, BPF prologue is disabled);
598 endif
599
600 endif # NO_LIBBPF
601endif # NO_LIBELF
602
603ifndef NO_SDT
604 ifneq ($(feature-sdt), 1)
605 msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
606 NO_SDT := 1;
607 else
608 CFLAGS += -DHAVE_SDT_EVENT
609 $(call detected,CONFIG_SDT_EVENT)
610 endif
611endif
612
613ifdef PERF_HAVE_JITDUMP
614 ifndef NO_LIBELF
615 $(call detected,CONFIG_JITDUMP)
616 CFLAGS += -DHAVE_JITDUMP
617 endif
618endif
619
620ifeq ($(SRCARCH),powerpc)
621 ifndef NO_DWARF
622 CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
623 endif
624endif
625
626ifndef NO_LIBUNWIND
627 have_libunwind :=
628
629 $(call feature_check,libunwind-x86)
630 ifeq ($(feature-libunwind-x86), 1)
631 $(call detected,CONFIG_LIBUNWIND_X86)
632 CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
633 LDFLAGS += -lunwind-x86
634 EXTLIBS_LIBUNWIND += -lunwind-x86
635 have_libunwind = 1
636 endif
637
638 $(call feature_check,libunwind-aarch64)
639 ifeq ($(feature-libunwind-aarch64), 1)
640 $(call detected,CONFIG_LIBUNWIND_AARCH64)
641 CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
642 LDFLAGS += -lunwind-aarch64
643 EXTLIBS_LIBUNWIND += -lunwind-aarch64
644 have_libunwind = 1
645 $(call feature_check,libunwind-debug-frame-aarch64)
646 ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
647 msg := $(warning No debug_frame support found in libunwind-aarch64);
648 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
649 endif
650 endif
651
652 ifneq ($(feature-libunwind), 1)
653 msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
654 NO_LOCAL_LIBUNWIND := 1
655 else
656 have_libunwind := 1
657 $(call detected,CONFIG_LOCAL_LIBUNWIND)
658 endif
659
660 ifneq ($(have_libunwind), 1)
661 NO_LIBUNWIND := 1
662 endif
663else
664 NO_LOCAL_LIBUNWIND := 1
665endif
666
667ifndef NO_LIBBPF
668 ifneq ($(feature-bpf), 1)
669 msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
670 NO_LIBBPF := 1
671 endif
672endif
673
674ifdef BUILD_BPF_SKEL
675 $(call feature_check,clang-bpf-co-re)
676 ifeq ($(feature-clang-bpf-co-re), 0)
677 dummy := $(error Error: clang too old/not installed. Please install recent clang to build with BUILD_BPF_SKEL)
678 endif
679 ifeq ($(filter -DHAVE_LIBBPF_SUPPORT, $(CFLAGS)),)
680 dummy := $(error Error: BPF skeleton support requires libbpf)
681 endif
682 $(call detected,CONFIG_PERF_BPF_SKEL)
683 CFLAGS += -DHAVE_BPF_SKEL
684endif
685
686ifndef GEN_VMLINUX_H
687 VMLINUX_H=$(src-perf)/util/bpf_skel/vmlinux/vmlinux.h
688endif
689
690dwarf-post-unwind := 1
691dwarf-post-unwind-text := BUG
692
693# setup DWARF post unwinder
694ifdef NO_LIBUNWIND
695 ifdef NO_LIBDW_DWARF_UNWIND
696 msg := $(warning Disabling post unwind, no support found.);
697 dwarf-post-unwind := 0
698 else
699 dwarf-post-unwind-text := libdw
700 $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
701 endif
702else
703 dwarf-post-unwind-text := libunwind
704 $(call detected,CONFIG_LIBUNWIND)
705 # Enable libunwind support by default.
706 ifndef NO_LIBDW_DWARF_UNWIND
707 NO_LIBDW_DWARF_UNWIND := 1
708 endif
709endif
710
711ifeq ($(dwarf-post-unwind),1)
712 CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
713 $(call detected,CONFIG_DWARF_UNWIND)
714else
715 NO_DWARF_UNWIND := 1
716endif
717
718ifndef NO_LOCAL_LIBUNWIND
719 ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
720 $(call feature_check,libunwind-debug-frame)
721 ifneq ($(feature-libunwind-debug-frame), 1)
722 msg := $(warning No debug_frame support found in libunwind);
723 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
724 endif
725 else
726 # non-ARM has no dwarf_find_debug_frame() function:
727 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
728 endif
729 EXTLIBS += $(LIBUNWIND_LIBS)
730 LDFLAGS += $(LIBUNWIND_LIBS)
731endif
732ifeq ($(findstring -static,${LDFLAGS}),-static)
733 # gcc -static links libgcc_eh which contans piece of libunwind
734 LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
735endif
736
737ifndef NO_LIBUNWIND
738 CFLAGS += -DHAVE_LIBUNWIND_SUPPORT
739 CFLAGS += $(LIBUNWIND_CFLAGS)
740 LDFLAGS += $(LIBUNWIND_LDFLAGS)
741 EXTLIBS += $(EXTLIBS_LIBUNWIND)
742endif
743
744ifneq ($(NO_LIBTRACEEVENT),1)
745 ifeq ($(NO_SYSCALL_TABLE),0)
746 $(call detected,CONFIG_TRACE)
747 else
748 ifndef NO_LIBAUDIT
749 $(call feature_check,libaudit)
750 ifneq ($(feature-libaudit), 1)
751 msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
752 NO_LIBAUDIT := 1
753 else
754 CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
755 EXTLIBS += -laudit
756 $(call detected,CONFIG_TRACE)
757 endif
758 endif
759 endif
760endif
761
762ifndef NO_LIBCRYPTO
763 ifneq ($(feature-libcrypto), 1)
764 msg := $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev);
765 NO_LIBCRYPTO := 1
766 else
767 CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
768 EXTLIBS += -lcrypto
769 $(call detected,CONFIG_CRYPTO)
770 endif
771endif
772
773ifndef NO_SLANG
774 ifneq ($(feature-libslang), 1)
775 ifneq ($(feature-libslang-include-subdir), 1)
776 msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
777 NO_SLANG := 1
778 else
779 CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
780 endif
781 endif
782 ifndef NO_SLANG
783 # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
784 CFLAGS += -DHAVE_SLANG_SUPPORT
785 EXTLIBS += -lslang
786 $(call detected,CONFIG_SLANG)
787 endif
788endif
789
790ifdef GTK2
791 FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
792 $(call feature_check,gtk2)
793 ifneq ($(feature-gtk2), 1)
794 msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
795 NO_GTK2 := 1
796 else
797 $(call feature_check,gtk2-infobar)
798 ifeq ($(feature-gtk2-infobar), 1)
799 GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
800 endif
801 CFLAGS += -DHAVE_GTK2_SUPPORT
802 GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
803 GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
804 EXTLIBS += -ldl
805 endif
806endif
807
808ifdef NO_LIBPERL
809 CFLAGS += -DNO_LIBPERL
810else
811 PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
812 PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
813 PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
814 PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
815 PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
816 PERL_EMBED_CCOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
817 PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
818 FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
819
820 ifneq ($(feature-libperl), 1)
821 CFLAGS += -DNO_LIBPERL
822 NO_LIBPERL := 1
823 msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
824 else
825 LDFLAGS += $(PERL_EMBED_LDFLAGS)
826 EXTLIBS += $(PERL_EMBED_LIBADD)
827 CFLAGS += -DHAVE_LIBPERL_SUPPORT
828 ifeq ($(CC_NO_CLANG), 0)
829 CFLAGS += -Wno-compound-token-split-by-macro
830 endif
831 $(call detected,CONFIG_LIBPERL)
832 endif
833endif
834
835ifeq ($(feature-timerfd), 1)
836 CFLAGS += -DHAVE_TIMERFD_SUPPORT
837else
838 msg := $(warning No timerfd support. Disables 'perf kvm stat live');
839endif
840
841disable-python = $(eval $(disable-python_code))
842define disable-python_code
843 CFLAGS += -DNO_LIBPYTHON
844 $(warning $1)
845 NO_LIBPYTHON := 1
846endef
847
848PYTHON_EXTENSION_SUFFIX := '.so'
849ifdef NO_LIBPYTHON
850 $(call disable-python,Python support disabled by user)
851else
852
853 ifndef PYTHON
854 $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
855 else
856 PYTHON_WORD := $(call shell-wordify,$(PYTHON))
857
858 ifndef PYTHON_CONFIG
859 $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
860 else
861
862 ifneq ($(feature-libpython), 1)
863 $(call disable-python,No 'Python.h' was found: disables Python support - please install python-devel/python-dev)
864 else
865 LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
866 EXTLIBS += $(PYTHON_EMBED_LIBADD)
867 PYTHON_SETUPTOOLS_INSTALLED := $(shell $(PYTHON) -c 'import setuptools;' 2> /dev/null && echo "yes" || echo "no")
868 ifeq ($(PYTHON_SETUPTOOLS_INSTALLED), yes)
869 PYTHON_EXTENSION_SUFFIX := $(shell $(PYTHON) -c 'from importlib import machinery; print(machinery.EXTENSION_SUFFIXES[0])')
870 LANG_BINDINGS += $(obj-perf)python/perf$(PYTHON_EXTENSION_SUFFIX)
871 else
872 msg := $(warning Missing python setuptools, the python binding won't be built, please install python3-setuptools or equivalent);
873 endif
874 CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
875 $(call detected,CONFIG_LIBPYTHON)
876 endif
877 endif
878 endif
879endif
880
881ifneq ($(NO_JEVENTS),1)
882 ifeq ($(wildcard pmu-events/arch/$(SRCARCH)/mapfile.csv),)
883 NO_JEVENTS := 1
884 endif
885endif
886ifneq ($(NO_JEVENTS),1)
887 NO_JEVENTS := 0
888 ifndef PYTHON
889 $(error ERROR: No python interpreter needed for jevents generation. Install python or build with NO_JEVENTS=1.)
890 else
891 # jevents.py uses f-strings present in Python 3.6 released in Dec. 2016.
892 JEVENTS_PYTHON_GOOD := $(shell $(PYTHON) -c 'import sys;print("1" if(sys.version_info.major >= 3 and sys.version_info.minor >= 6) else "0")' 2> /dev/null)
893 ifneq ($(JEVENTS_PYTHON_GOOD), 1)
894 $(error ERROR: Python interpreter needed for jevents generation too old (older than 3.6). Install a newer python or build with NO_JEVENTS=1.)
895 endif
896 endif
897endif
898
899ifdef BUILD_NONDISTRO
900 ifeq ($(feature-libbfd), 1)
901 EXTLIBS += -lbfd -lopcodes
902 else
903 # we are on a system that requires -liberty and (maybe) -lz
904 # to link against -lbfd; test each case individually here
905
906 # call all detections now so we get correct
907 # status in VF output
908 $(call feature_check,libbfd-liberty)
909 $(call feature_check,libbfd-liberty-z)
910
911 ifeq ($(feature-libbfd-liberty), 1)
912 EXTLIBS += -lbfd -lopcodes -liberty
913 FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl
914 FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -ldl
915 else
916 ifeq ($(feature-libbfd-liberty-z), 1)
917 EXTLIBS += -lbfd -lopcodes -liberty -lz
918 FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl
919 FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -lz -ldl
920 endif
921 endif
922 $(call feature_check,disassembler-four-args)
923 $(call feature_check,disassembler-init-styled)
924 endif
925
926 CFLAGS += -DHAVE_LIBBFD_SUPPORT
927 CXXFLAGS += -DHAVE_LIBBFD_SUPPORT
928 ifeq ($(feature-libbfd-buildid), 1)
929 CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
930 else
931 msg := $(warning Old version of libbfd/binutils things like PE executable profiling will not be available);
932 endif
933endif
934
935ifndef NO_DEMANGLE
936 $(call feature_check,cxa-demangle)
937 ifeq ($(feature-cxa-demangle), 1)
938 EXTLIBS += -lstdc++
939 CFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT
940 CXXFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT
941 $(call detected,CONFIG_CXX_DEMANGLE)
942 endif
943 ifdef BUILD_NONDISTRO
944 ifeq ($(filter -liberty,$(EXTLIBS)),)
945 $(call feature_check,cplus-demangle)
946 ifeq ($(feature-cplus-demangle), 1)
947 EXTLIBS += -liberty
948 endif
949 endif
950 ifneq ($(filter -liberty,$(EXTLIBS)),)
951 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
952 CXXFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
953 endif
954 endif
955endif
956
957ifndef NO_ZLIB
958 ifeq ($(feature-zlib), 1)
959 CFLAGS += -DHAVE_ZLIB_SUPPORT
960 EXTLIBS += -lz
961 $(call detected,CONFIG_ZLIB)
962 else
963 NO_ZLIB := 1
964 endif
965endif
966
967ifndef NO_LZMA
968 ifeq ($(feature-lzma), 1)
969 CFLAGS += -DHAVE_LZMA_SUPPORT
970 EXTLIBS += -llzma
971 $(call detected,CONFIG_LZMA)
972 else
973 msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
974 NO_LZMA := 1
975 endif
976endif
977
978ifndef NO_LIBZSTD
979 ifeq ($(feature-libzstd), 1)
980 CFLAGS += -DHAVE_ZSTD_SUPPORT
981 CFLAGS += $(LIBZSTD_CFLAGS)
982 LDFLAGS += $(LIBZSTD_LDFLAGS)
983 EXTLIBS += -lzstd
984 $(call detected,CONFIG_ZSTD)
985 else
986 msg := $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR);
987 NO_LIBZSTD := 1
988 endif
989endif
990
991ifndef NO_LIBCAP
992 ifeq ($(feature-libcap), 1)
993 CFLAGS += -DHAVE_LIBCAP_SUPPORT
994 EXTLIBS += -lcap
995 $(call detected,CONFIG_LIBCAP)
996 else
997 msg := $(warning No libcap found, disables capability support, please install libcap-devel/libcap-dev);
998 NO_LIBCAP := 1
999 endif
1000endif
1001
1002ifndef NO_BACKTRACE
1003 ifeq ($(feature-backtrace), 1)
1004 CFLAGS += -DHAVE_BACKTRACE_SUPPORT
1005 endif
1006endif
1007
1008ifndef NO_LIBNUMA
1009 ifeq ($(feature-libnuma), 0)
1010 msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
1011 NO_LIBNUMA := 1
1012 else
1013 ifeq ($(feature-numa_num_possible_cpus), 0)
1014 msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
1015 NO_LIBNUMA := 1
1016 else
1017 CFLAGS += -DHAVE_LIBNUMA_SUPPORT
1018 EXTLIBS += -lnuma
1019 $(call detected,CONFIG_NUMA)
1020 endif
1021 endif
1022endif
1023
1024ifdef HAVE_KVM_STAT_SUPPORT
1025 CFLAGS += -DHAVE_KVM_STAT_SUPPORT
1026endif
1027
1028ifeq ($(feature-disassembler-four-args), 1)
1029 CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
1030endif
1031
1032ifeq ($(feature-disassembler-init-styled), 1)
1033 CFLAGS += -DDISASM_INIT_STYLED
1034endif
1035
1036ifeq (${IS_64_BIT}, 1)
1037 ifndef NO_PERF_READ_VDSO32
1038 $(call feature_check,compile-32)
1039 ifeq ($(feature-compile-32), 1)
1040 CFLAGS += -DHAVE_PERF_READ_VDSO32
1041 else
1042 NO_PERF_READ_VDSO32 := 1
1043 endif
1044 endif
1045 ifneq ($(SRCARCH), x86)
1046 NO_PERF_READ_VDSOX32 := 1
1047 endif
1048 ifndef NO_PERF_READ_VDSOX32
1049 $(call feature_check,compile-x32)
1050 ifeq ($(feature-compile-x32), 1)
1051 CFLAGS += -DHAVE_PERF_READ_VDSOX32
1052 else
1053 NO_PERF_READ_VDSOX32 := 1
1054 endif
1055 endif
1056else
1057 NO_PERF_READ_VDSO32 := 1
1058 NO_PERF_READ_VDSOX32 := 1
1059endif
1060
1061ifndef NO_LIBBABELTRACE
1062 $(call feature_check,libbabeltrace)
1063 ifeq ($(feature-libbabeltrace), 1)
1064 CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
1065 LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
1066 EXTLIBS += -lbabeltrace-ctf
1067 $(call detected,CONFIG_LIBBABELTRACE)
1068 else
1069 msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
1070 endif
1071endif
1072
1073ifndef NO_AUXTRACE
1074 ifeq ($(SRCARCH),x86)
1075 ifeq ($(feature-get_cpuid), 0)
1076 msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
1077 NO_AUXTRACE := 1
1078 endif
1079 endif
1080 ifndef NO_AUXTRACE
1081 $(call detected,CONFIG_AUXTRACE)
1082 CFLAGS += -DHAVE_AUXTRACE_SUPPORT
1083 ifeq ($(feature-reallocarray), 0)
1084 CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
1085 endif
1086 endif
1087endif
1088
1089ifdef EXTRA_TESTS
1090 $(call detected,CONFIG_EXTRA_TESTS)
1091 CFLAGS += -DHAVE_EXTRA_TESTS
1092endif
1093
1094ifndef NO_JVMTI
1095 ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
1096 JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
1097 else
1098 ifneq (,$(wildcard /usr/sbin/alternatives))
1099 JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
1100 endif
1101 endif
1102 ifndef JDIR
1103 $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
1104 NO_JVMTI := 1
1105 endif
1106endif
1107
1108ifndef NO_JVMTI
1109 FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
1110 $(call feature_check,jvmti)
1111 ifeq ($(feature-jvmti), 1)
1112 $(call detected_var,JDIR)
1113 ifndef NO_JVMTI_CMLR
1114 FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
1115 $(call feature_check,jvmti-cmlr)
1116 ifeq ($(feature-jvmti-cmlr), 1)
1117 CFLAGS += -DHAVE_JVMTI_CMLR
1118 endif
1119 endif # NO_JVMTI_CMLR
1120 else
1121 $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
1122 NO_JVMTI := 1
1123 endif
1124endif
1125
1126USE_CXX = 0
1127USE_CLANGLLVM = 0
1128ifdef LIBCLANGLLVM
1129 $(call feature_check,cxx)
1130 ifneq ($(feature-cxx), 1)
1131 msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
1132 else
1133 $(call feature_check,llvm)
1134 $(call feature_check,llvm-version)
1135 ifneq ($(feature-llvm), 1)
1136 msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
1137 else
1138 $(call feature_check,clang)
1139 ifneq ($(feature-clang), 1)
1140 msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
1141 else
1142 CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
1143 CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
1144 $(call detected,CONFIG_CXX)
1145 $(call detected,CONFIG_CLANGLLVM)
1146 USE_CXX = 1
1147 USE_LLVM = 1
1148 USE_CLANG = 1
1149 ifneq ($(feature-llvm-version),1)
1150 msg := $(warning This version of LLVM is not tested. May cause build errors)
1151 endif
1152 endif
1153 endif
1154 endif
1155endif
1156
1157ifndef NO_LIBPFM4
1158 $(call feature_check,libpfm4)
1159 ifeq ($(feature-libpfm4), 1)
1160 CFLAGS += -DHAVE_LIBPFM
1161 EXTLIBS += -lpfm
1162 ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
1163 $(call detected,CONFIG_LIBPFM4)
1164 else
1165 msg := $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev);
1166 endif
1167endif
1168
1169# libtraceevent is a recommended dependency picked up from the system.
1170ifneq ($(NO_LIBTRACEEVENT),1)
1171 $(call feature_check,libtraceevent)
1172 ifeq ($(feature-libtraceevent), 1)
1173 CFLAGS += -DHAVE_LIBTRACEEVENT
1174 EXTLIBS += -ltraceevent
1175 LIBTRACEEVENT_VERSION := $(shell $(PKG_CONFIG) --modversion libtraceevent)
1176 LIBTRACEEVENT_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1177 LIBTRACEEVENT_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1178 LIBTRACEEVENT_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1179 LIBTRACEEVENT_VERSION_CPP := $(shell expr $(LIBTRACEEVENT_VERSION_1) \* 255 \* 255 + $(LIBTRACEEVENT_VERSION_2) \* 255 + $(LIBTRACEEVENT_VERSION_3))
1180 CFLAGS += -DLIBTRACEEVENT_VERSION=$(LIBTRACEEVENT_VERSION_CPP)
1181 $(call detected,CONFIG_LIBTRACEEVENT)
1182 else
1183 dummy := $(error ERROR: libtraceevent is missing. Please install libtraceevent-dev/libtraceevent-devel or build with NO_LIBTRACEEVENT=1)
1184 endif
1185
1186 $(call feature_check,libtracefs)
1187 ifeq ($(feature-libtracefs), 1)
1188 EXTLIBS += -ltracefs
1189 LIBTRACEFS_VERSION := $(shell $(PKG_CONFIG) --modversion libtracefs)
1190 LIBTRACEFS_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEFS_VERSION)))
1191 LIBTRACEFS_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEFS_VERSION)))
1192 LIBTRACEFS_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEFS_VERSION)))
1193 LIBTRACEFS_VERSION_CPP := $(shell expr $(LIBTRACEFS_VERSION_1) \* 255 \* 255 + $(LIBTRACEFS_VERSION_2) \* 255 + $(LIBTRACEFS_VERSION_3))
1194 CFLAGS += -DLIBTRACEFS_VERSION=$(LIBTRACEFS_VERSION_CPP)
1195 endif
1196endif
1197
1198# Among the variables below, these:
1199# perfexecdir
1200# libbpf_include_dir
1201# perf_examples_dir
1202# template_dir
1203# mandir
1204# infodir
1205# htmldir
1206# ETC_PERFCONFIG (but not sysconfdir)
1207# can be specified as a relative path some/where/else;
1208# this is interpreted as relative to $(prefix) and "perf" at
1209# runtime figures out where they are based on the path to the executable.
1210# This can help installing the suite in a relocatable way.
1211
1212# Make the path relative to DESTDIR, not to prefix
1213ifndef DESTDIR
1214prefix ?= $(HOME)
1215endif
1216bindir_relative = bin
1217bindir = $(abspath $(prefix)/$(bindir_relative))
1218includedir_relative = include
1219includedir = $(abspath $(prefix)/$(includedir_relative))
1220mandir = share/man
1221infodir = share/info
1222perfexecdir = libexec/perf-core
1223# FIXME: system's libbpf header directory, where we expect to find bpf/bpf_helpers.h, for instance
1224libbpf_include_dir = /usr/include
1225perf_examples_dir = lib/perf/examples
1226sharedir = $(prefix)/share
1227template_dir = share/perf-core/templates
1228STRACE_GROUPS_DIR = share/perf-core/strace/groups
1229htmldir = share/doc/perf-doc
1230tipdir = share/doc/perf-tip
1231srcdir = $(srctree)/tools/perf
1232ifeq ($(prefix),/usr)
1233sysconfdir = /etc
1234ETC_PERFCONFIG = $(sysconfdir)/perfconfig
1235else
1236sysconfdir = $(prefix)/etc
1237ETC_PERFCONFIG = etc/perfconfig
1238endif
1239ifndef lib
1240ifeq ($(SRCARCH)$(IS_64_BIT), x861)
1241lib = lib64
1242else
1243lib = lib
1244endif
1245endif # lib
1246libdir = $(prefix)/$(lib)
1247
1248# Shell quote (do not use $(call) to accommodate ancient setups);
1249ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
1250STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
1251DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
1252bindir_SQ = $(subst ','\'',$(bindir))
1253includedir_SQ = $(subst ','\'',$(includedir))
1254mandir_SQ = $(subst ','\'',$(mandir))
1255infodir_SQ = $(subst ','\'',$(infodir))
1256perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
1257libbpf_include_dir_SQ = $(subst ','\'',$(libbpf_include_dir))
1258perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
1259template_dir_SQ = $(subst ','\'',$(template_dir))
1260htmldir_SQ = $(subst ','\'',$(htmldir))
1261tipdir_SQ = $(subst ','\'',$(tipdir))
1262prefix_SQ = $(subst ','\'',$(prefix))
1263sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
1264libdir_SQ = $(subst ','\'',$(libdir))
1265srcdir_SQ = $(subst ','\'',$(srcdir))
1266
1267ifneq ($(filter /%,$(firstword $(perfexecdir))),)
1268perfexec_instdir = $(perfexecdir)
1269perf_include_instdir = $(libbpf_include_dir)
1270perf_examples_instdir = $(perf_examples_dir)
1271STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
1272tip_instdir = $(tipdir)
1273else
1274perfexec_instdir = $(prefix)/$(perfexecdir)
1275perf_include_instdir = $(prefix)/$(libbpf_include_dir)
1276perf_examples_instdir = $(prefix)/$(perf_examples_dir)
1277STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
1278tip_instdir = $(prefix)/$(tipdir)
1279endif
1280perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
1281perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
1282perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
1283STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
1284tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
1285
1286export perfexec_instdir_SQ
1287
1288print_var = $(eval $(print_var_code)) $(info $(MSG))
1289define print_var_code
1290 MSG = $(shell printf '...%40s: %s' $(1) $($(1)))
1291endef
1292
1293ifeq ($(feature_display),1)
1294 $(call feature_display_entries)
1295endif
1296
1297ifeq ($(VF),1)
1298 # Display EXTRA features which are detected manualy
1299 # from here with feature_check call and thus cannot
1300 # be partof global state output.
1301 $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),) $(info $(MSG)))
1302 $(call print_var,prefix)
1303 $(call print_var,bindir)
1304 $(call print_var,libdir)
1305 $(call print_var,sysconfdir)
1306 $(call print_var,LIBUNWIND_DIR)
1307 $(call print_var,LIBDW_DIR)
1308 $(call print_var,JDIR)
1309
1310 ifeq ($(dwarf-post-unwind),1)
1311 $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text)) $(info $(MSG))
1312 endif
1313endif
1314
1315$(info )
1316
1317$(call detected_var,bindir_SQ)
1318$(call detected_var,PYTHON_WORD)
1319ifneq ($(OUTPUT),)
1320$(call detected_var,OUTPUT)
1321endif
1322$(call detected_var,htmldir_SQ)
1323$(call detected_var,infodir_SQ)
1324$(call detected_var,mandir_SQ)
1325$(call detected_var,ETC_PERFCONFIG_SQ)
1326$(call detected_var,STRACE_GROUPS_DIR_SQ)
1327$(call detected_var,prefix_SQ)
1328$(call detected_var,perfexecdir_SQ)
1329$(call detected_var,libbpf_include_dir_SQ)
1330$(call detected_var,perf_examples_dir_SQ)
1331$(call detected_var,tipdir_SQ)
1332$(call detected_var,srcdir_SQ)
1333$(call detected_var,LIBDIR)
1334$(call detected_var,GTK_CFLAGS)
1335$(call detected_var,PERL_EMBED_CCOPTS)
1336$(call detected_var,PYTHON_EMBED_CCOPTS)
1337ifneq ($(BISON_FILE_PREFIX_MAP),)
1338$(call detected_var,BISON_FILE_PREFIX_MAP)
1339endif
1340
1341# re-generate FEATURE-DUMP as we may have called feature_check, found out
1342# extra libraries to add to LDFLAGS of some other test and then redo those
1343# tests, see the block about libbfd, disassembler-four-args, for instance.
1344$(shell rm -f $(FEATURE_DUMP_FILENAME))
1345$(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))