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