1 # SPDX-License-Identifier: GPL-2.0-only
4 src-perf := $(srctree)/tools/perf
12 obj-perf := $(abspath $(obj-perf))/
15 $(shell printf "" > $(OUTPUT).config-detected)
16 detected = $(shell echo "$(1)=y" >> $(OUTPUT).config-detected)
17 detected_var = $(shell echo "$(1)=$($(1))" >> $(OUTPUT).config-detected)
19 CFLAGS := $(EXTRA_CFLAGS) $(filter-out -Wnested-externs,$(EXTRA_WARNINGS))
21 include $(srctree)/tools/scripts/Makefile.arch
23 $(call detected_var,SRCARCH)
27 ifneq ($(NO_SYSCALL_TABLE),1)
31 ifeq (${IS_64_BIT}, 1)
35 ifeq ($(SRCARCH),$(filter $(SRCARCH),powerpc arm64 s390 mips))
40 ifneq ($(NO_SYSCALL_TABLE),1)
41 CFLAGS += -DHAVE_SYSCALL_TABLE_SUPPORT
45 # Additional ARCH settings for ppc
46 ifeq ($(SRCARCH),powerpc)
48 CFLAGS += -I$(OUTPUT)arch/powerpc/include/generated
49 LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
52 # Additional ARCH settings for x86
54 $(call detected,CONFIG_X86)
55 ifeq (${IS_64_BIT}, 1)
56 CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT -I$(OUTPUT)arch/x86/include/generated
57 ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
58 LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma
59 $(call detected,CONFIG_X86_64)
61 LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
68 LIBUNWIND_LIBS = -lunwind -lunwind-arm
71 ifeq ($(SRCARCH),arm64)
73 CFLAGS += -I$(OUTPUT)arch/arm64/include/generated
74 LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
77 ifeq ($(SRCARCH),riscv)
81 ifeq ($(SRCARCH),csky)
87 CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
92 CFLAGS += -I$(OUTPUT)arch/mips/include/generated
93 CFLAGS += -I../../arch/mips/include/uapi -I../../arch/mips/include/generated/uapi
94 LIBUNWIND_LIBS = -lunwind -lunwind-mips
97 ifeq ($(NO_PERF_REGS),0)
98 $(call detected,CONFIG_PERF_REGS)
101 # So far there's only x86 and arm libdw unwind support merged in perf.
102 # Disable it on all other architectures in case libdw unwind
103 # support is detected in system. Add supported architectures
105 ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky riscv))
106 NO_LIBDW_DWARF_UNWIND := 1
109 ifeq ($(LIBUNWIND_LIBS),)
113 # For linking with debug library, run like:
115 # make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
118 libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
119 define libunwind_arch_set_flags_code
120 FEATURE_CHECK_CFLAGS-libunwind-$(1) = -I$(LIBUNWIND_DIR)/include
121 FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
125 LIBUNWIND_CFLAGS = -I$(LIBUNWIND_DIR)/include
126 LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
127 LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64
128 $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
131 # Set per-feature check compilation flags
132 FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
133 FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
134 FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
135 FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
137 FEATURE_CHECK_LDFLAGS-libunwind-arm = -lunwind -lunwind-arm
138 FEATURE_CHECK_LDFLAGS-libunwind-aarch64 = -lunwind -lunwind-aarch64
139 FEATURE_CHECK_LDFLAGS-libunwind-x86 = -lunwind -llzma -lunwind-x86
140 FEATURE_CHECK_LDFLAGS-libunwind-x86_64 = -lunwind -llzma -lunwind-x86_64
142 FEATURE_CHECK_LDFLAGS-libcrypto = -lcrypto
145 LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
147 OPENCSDLIBS := -lopencsd_c_api -lopencsd
149 LIBOPENCSD_LDFLAGS := -L$(CSLIBS)
151 FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
152 FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
154 ifeq ($(NO_PERF_REGS),0)
155 CFLAGS += -DHAVE_PERF_REGS_SUPPORT
158 # for linking with debug library, run like:
159 # make DEBUG=1 LIBDW_DIR=/opt/libdw/
161 LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
162 LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
165 ifeq ($(findstring -static,${LDFLAGS}),-static)
166 DWARFLIBS += -lelf -lebl -ldl -lz -llzma -lbz2
168 FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
169 FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
171 # for linking with debug library, run like:
172 # make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
173 ifdef LIBBABELTRACE_DIR
174 LIBBABELTRACE_CFLAGS := -I$(LIBBABELTRACE_DIR)/include
175 LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
177 FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
178 FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
181 LIBZSTD_CFLAGS := -I$(LIBZSTD_DIR)/lib
182 LIBZSTD_LDFLAGS := -L$(LIBZSTD_DIR)/lib
184 FEATURE_CHECK_CFLAGS-libzstd := $(LIBZSTD_CFLAGS)
185 FEATURE_CHECK_LDFLAGS-libzstd := $(LIBZSTD_LDFLAGS)
187 FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
188 # include ARCH specific config
189 -include $(src-perf)/arch/$(SRCARCH)/Makefile
191 ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
192 CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
195 include $(srctree)/tools/scripts/utilities.mak
197 ifeq ($(call get-executable,$(FLEX)),)
198 dummy := $(error Error: $(FLEX) is missing on this system, please install it)
201 ifeq ($(call get-executable,$(BISON)),)
202 dummy := $(error Error: $(BISON) is missing on this system, please install it)
205 # Treat warnings as errors unless directed not to
207 CORE_CFLAGS += -Werror
216 ifeq ($(CC_NO_CLANG), 0)
224 PARSER_DEBUG_BISON := -t
225 PARSER_DEBUG_FLEX := -d
226 CFLAGS += -DPARSER_DEBUG
227 $(call detected_var,PARSER_DEBUG_BISON)
228 $(call detected_var,PARSER_DEBUG_FLEX)
231 # Try different combinations to accommodate systems that only have
232 # python[2][-config] in weird combinations but always preferring
233 # python2 and python2-config as per pep-0394. If python2 or python
234 # aren't found, then python3 is used.
235 PYTHON_AUTO := python
236 PYTHON_AUTO := $(if $(call get-executable,python3),python3,$(PYTHON_AUTO))
237 PYTHON_AUTO := $(if $(call get-executable,python),python,$(PYTHON_AUTO))
238 PYTHON_AUTO := $(if $(call get-executable,python2),python2,$(PYTHON_AUTO))
239 override PYTHON := $(call get-executable-or-default,PYTHON,$(PYTHON_AUTO))
240 PYTHON_AUTO_CONFIG := \
241 $(if $(call get-executable,$(PYTHON)-config),$(PYTHON)-config,python-config)
242 override PYTHON_CONFIG := \
243 $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON_AUTO_CONFIG))
245 grep-libs = $(filter -l%,$(1))
246 strip-libs = $(filter-out -l%,$(1))
248 PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
250 # Python 3.8 changed the output of `python-config --ldflags` to not include the
251 # '-lpythonX.Y' flag unless '--embed' is also passed. The feature check for
252 # libpython fails if that flag is not included in LDFLAGS
253 ifeq ($(shell $(PYTHON_CONFIG_SQ) --ldflags --embed 2>&1 1>/dev/null; echo $$?), 0)
254 PYTHON_CONFIG_LDFLAGS := --ldflags --embed
256 PYTHON_CONFIG_LDFLAGS := --ldflags
260 PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) $(PYTHON_CONFIG_LDFLAGS) 2>/dev/null)
261 PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
262 PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
263 PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null)
264 FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
267 FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
268 FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
269 FEATURE_CHECK_CFLAGS-libpython-version := $(PYTHON_EMBED_CCOPTS)
270 FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS)
272 FEATURE_CHECK_LDFLAGS-libaio = -lrt
274 FEATURE_CHECK_LDFLAGS-disassembler-four-args = -lbfd -lopcodes -ldl
276 CORE_CFLAGS += -fno-omit-frame-pointer
277 CORE_CFLAGS += -ggdb3
278 CORE_CFLAGS += -funwind-tables
280 CORE_CFLAGS += -Wextra
281 CORE_CFLAGS += -std=gnu99
283 CXXFLAGS += -std=gnu++11 -fno-exceptions -fno-rtti
285 CXXFLAGS += -fno-omit-frame-pointer
287 CXXFLAGS += -funwind-tables
288 CXXFLAGS += -Wno-strict-aliasing
290 # Enforce a non-executable stack, as we may regress (again) in the future by
291 # adding assembler files missing the .GNU-stack linker note.
292 LDFLAGS += -Wl,-z,noexecstack
294 EXTLIBS = -lpthread -lrt -lm -ldl
297 CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free
298 EXTLIBS += -ltcmalloc
301 ifeq ($(FEATURES_DUMP),)
302 include $(srctree)/tools/build/Makefile.feature
304 include $(FEATURES_DUMP)
307 ifeq ($(feature-stackprotector-all), 1)
308 CORE_CFLAGS += -fstack-protector-all
312 ifeq ($(feature-fortify-source), 1)
313 CORE_CFLAGS += -D_FORTIFY_SOURCE=2
317 INC_FLAGS += -I$(srctree)/tools/lib/perf/include
318 INC_FLAGS += -I$(src-perf)/util/include
319 INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
320 INC_FLAGS += -I$(srctree)/tools/include/
321 INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
322 INC_FLAGS += -I$(srctree)/tools/include/uapi
323 INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
324 INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
326 # $(obj-perf) for generated common-cmds.h
327 # $(obj-perf)/util for generated bison/flex headers
329 INC_FLAGS += -I$(obj-perf)/util
330 INC_FLAGS += -I$(obj-perf)
333 INC_FLAGS += -I$(src-perf)/util
334 INC_FLAGS += -I$(src-perf)
335 INC_FLAGS += -I$(srctree)/tools/lib/
337 CORE_CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
339 CFLAGS += $(CORE_CFLAGS) $(INC_FLAGS)
340 CXXFLAGS += $(INC_FLAGS)
342 LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS)
344 ifeq ($(feature-sync-compare-and-swap), 1)
345 CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT
348 ifeq ($(feature-pthread-attr-setaffinity-np), 1)
349 CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
352 ifeq ($(feature-pthread-barrier), 1)
353 CFLAGS += -DHAVE_PTHREAD_BARRIER
357 $(call feature_check,bionic)
358 ifeq ($(feature-bionic), 1)
360 CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE
361 CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE
362 EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
363 EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
367 ifeq ($(feature-eventfd), 1)
368 CFLAGS += -DHAVE_EVENTFD_SUPPORT
371 ifeq ($(feature-get_current_dir_name), 1)
372 CFLAGS += -DHAVE_GET_CURRENT_DIR_NAME
375 ifeq ($(feature-gettid), 1)
376 CFLAGS += -DHAVE_GETTID
379 ifeq ($(feature-file-handle), 1)
380 CFLAGS += -DHAVE_FILE_HANDLE
387 NO_LIBDW_DWARF_UNWIND := 1
391 ifeq ($(feature-libelf), 0)
392 ifeq ($(feature-glibc), 1)
398 ifeq ($(LIBC_SUPPORT),1)
399 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);
405 NO_LIBDW_DWARF_UNWIND := 1
409 ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
410 ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
411 msg := $(error No libasan found, please install libasan);
415 ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
416 ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
417 msg := $(error No libubsan found, please install libubsan);
421 ifneq ($(filter s% -static%,$(LDFLAGS),),)
422 msg := $(error No static glibc found, please install glibc-static);
424 msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
428 ifndef NO_LIBDW_DWARF_UNWIND
429 ifneq ($(feature-libdw-dwarf-unwind),1)
430 NO_LIBDW_DWARF_UNWIND := 1
431 msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
434 ifneq ($(feature-dwarf), 1)
436 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);
440 ifneq ($(feature-dwarf_getlocations), 1)
441 msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
443 CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
444 endif # dwarf_getlocations
445 endif # Dwarf support
446 endif # libelf support
449 ifeq ($(feature-glibc), 1)
450 CFLAGS += -DHAVE_GLIBC_SUPPORT
453 ifeq ($(feature-libaio), 1)
455 CFLAGS += -DHAVE_AIO_SUPPORT
460 NO_LIBDW_DWARF_UNWIND := 1
463 ifeq ($(feature-sched_getcpu), 1)
464 CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
467 ifeq ($(feature-setns), 1)
468 CFLAGS += -DHAVE_SETNS_SUPPORT
469 $(call detected,CONFIG_SETNS)
473 $(call feature_check,libopencsd)
474 ifeq ($(feature-libopencsd), 1)
475 CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
476 ifeq ($(feature-reallocarray), 0)
477 CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
479 LDFLAGS += $(LIBOPENCSD_LDFLAGS)
480 EXTLIBS += $(OPENCSDLIBS)
481 $(call detected,CONFIG_LIBOPENCSD)
483 CFLAGS += -DCS_DEBUG_RAW
484 ifeq (${CSTRACE_RAW}, packed)
485 CFLAGS += -DCS_RAW_PACKED
492 CFLAGS += -DHAVE_LIBELF_SUPPORT
494 $(call detected,CONFIG_LIBELF)
496 ifeq ($(feature-libelf-getphdrnum), 1)
497 CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
500 ifeq ($(feature-libelf-gelf_getnote), 1)
501 CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
503 msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
506 ifeq ($(feature-libelf-getshdrstrndx), 1)
507 CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
510 ifndef NO_LIBDEBUGINFOD
511 $(call feature_check,libdebuginfod)
512 ifeq ($(feature-libdebuginfod), 1)
513 CFLAGS += -DHAVE_DEBUGINFOD_SUPPORT
514 EXTLIBS += -ldebuginfod
519 ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
520 msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
523 CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
524 LDFLAGS += $(LIBDW_LDFLAGS)
525 EXTLIBS += ${DWARFLIBS}
526 $(call detected,CONFIG_DWARF)
527 endif # PERF_HAVE_DWARF_REGS
531 ifeq ($(feature-bpf), 1)
532 CFLAGS += -DHAVE_LIBBPF_SUPPORT
533 $(call detected,CONFIG_LIBBPF)
535 # detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
536 $(call feature_check,libbpf)
538 ifeq ($(feature-libbpf), 1)
541 dummy := $(error Error: No libbpf devel library found, please install libbpf-devel);
547 ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
548 CFLAGS += -DHAVE_BPF_PROLOGUE
549 $(call detected,CONFIG_BPF_PROLOGUE)
551 msg := $(warning BPF prologue is not supported by architecture $(SRCARCH), missing regs_query_register_offset());
554 msg := $(warning DWARF support is off, BPF prologue is disabled);
561 ifneq ($(feature-sdt), 1)
562 msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
565 CFLAGS += -DHAVE_SDT_EVENT
566 $(call detected,CONFIG_SDT_EVENT)
570 ifdef PERF_HAVE_JITDUMP
572 $(call detected,CONFIG_JITDUMP)
573 CFLAGS += -DHAVE_JITDUMP
577 ifeq ($(SRCARCH),powerpc)
579 CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
586 $(call feature_check,libunwind-x86)
587 ifeq ($(feature-libunwind-x86), 1)
588 $(call detected,CONFIG_LIBUNWIND_X86)
589 CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
590 LDFLAGS += -lunwind-x86
591 EXTLIBS_LIBUNWIND += -lunwind-x86
595 $(call feature_check,libunwind-aarch64)
596 ifeq ($(feature-libunwind-aarch64), 1)
597 $(call detected,CONFIG_LIBUNWIND_AARCH64)
598 CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
599 LDFLAGS += -lunwind-aarch64
600 EXTLIBS_LIBUNWIND += -lunwind-aarch64
602 $(call feature_check,libunwind-debug-frame-aarch64)
603 ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
604 msg := $(warning No debug_frame support found in libunwind-aarch64);
605 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
609 ifneq ($(feature-libunwind), 1)
610 msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
611 NO_LOCAL_LIBUNWIND := 1
614 $(call detected,CONFIG_LOCAL_LIBUNWIND)
617 ifneq ($(have_libunwind), 1)
621 NO_LOCAL_LIBUNWIND := 1
625 ifneq ($(feature-bpf), 1)
626 msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
632 $(call feature_check,clang-bpf-co-re)
633 ifeq ($(feature-clang-bpf-co-re), 0)
634 dummy := $(error Error: clang too old. Please install recent clang)
636 $(call detected,CONFIG_PERF_BPF_SKEL)
637 CFLAGS += -DHAVE_BPF_SKEL
640 dwarf-post-unwind := 1
641 dwarf-post-unwind-text := BUG
643 # setup DWARF post unwinder
645 ifdef NO_LIBDW_DWARF_UNWIND
646 msg := $(warning Disabling post unwind, no support found.);
647 dwarf-post-unwind := 0
649 dwarf-post-unwind-text := libdw
650 $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
653 dwarf-post-unwind-text := libunwind
654 $(call detected,CONFIG_LIBUNWIND)
655 # Enable libunwind support by default.
656 ifndef NO_LIBDW_DWARF_UNWIND
657 NO_LIBDW_DWARF_UNWIND := 1
661 ifeq ($(dwarf-post-unwind),1)
662 CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
663 $(call detected,CONFIG_DWARF_UNWIND)
668 ifndef NO_LOCAL_LIBUNWIND
669 ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
670 $(call feature_check,libunwind-debug-frame)
671 ifneq ($(feature-libunwind-debug-frame), 1)
672 msg := $(warning No debug_frame support found in libunwind);
673 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
676 # non-ARM has no dwarf_find_debug_frame() function:
677 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
679 EXTLIBS += $(LIBUNWIND_LIBS)
680 LDFLAGS += $(LIBUNWIND_LIBS)
682 ifeq ($(findstring -static,${LDFLAGS}),-static)
683 # gcc -static links libgcc_eh which contans piece of libunwind
684 LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
688 CFLAGS += -DHAVE_LIBUNWIND_SUPPORT
689 CFLAGS += $(LIBUNWIND_CFLAGS)
690 LDFLAGS += $(LIBUNWIND_LDFLAGS)
691 EXTLIBS += $(EXTLIBS_LIBUNWIND)
694 ifeq ($(NO_SYSCALL_TABLE),0)
695 $(call detected,CONFIG_TRACE)
698 $(call feature_check,libaudit)
699 ifneq ($(feature-libaudit), 1)
700 msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
703 CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
705 $(call detected,CONFIG_TRACE)
711 ifneq ($(feature-libcrypto), 1)
712 msg := $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev);
715 CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
717 $(call detected,CONFIG_CRYPTO)
726 ifneq ($(feature-libslang), 1)
727 ifneq ($(feature-libslang-include-subdir), 1)
728 msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
731 CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
735 # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
736 CFLAGS += -DHAVE_SLANG_SUPPORT
738 $(call detected,CONFIG_SLANG)
743 FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
744 $(call feature_check,gtk2)
745 ifneq ($(feature-gtk2), 1)
746 msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
749 $(call feature_check,gtk2-infobar)
750 ifeq ($(feature-gtk2-infobar), 1)
751 GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
753 CFLAGS += -DHAVE_GTK2_SUPPORT
754 GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
755 GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
761 CFLAGS += -DNO_LIBPERL
763 PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
764 PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
765 PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
766 PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
767 PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
768 PERL_EMBED_CCOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
769 PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
770 FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
772 ifneq ($(feature-libperl), 1)
773 CFLAGS += -DNO_LIBPERL
775 msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
777 LDFLAGS += $(PERL_EMBED_LDFLAGS)
778 EXTLIBS += $(PERL_EMBED_LIBADD)
779 CFLAGS += -DHAVE_LIBPERL_SUPPORT
780 $(call detected,CONFIG_LIBPERL)
784 ifeq ($(feature-timerfd), 1)
785 CFLAGS += -DHAVE_TIMERFD_SUPPORT
787 msg := $(warning No timerfd support. Disables 'perf kvm stat live');
790 disable-python = $(eval $(disable-python_code))
791 define disable-python_code
792 CFLAGS += -DNO_LIBPYTHON
798 $(call disable-python,Python support disabled by user)
802 $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
804 PYTHON_WORD := $(call shell-wordify,$(PYTHON))
807 $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
810 ifneq ($(feature-libpython), 1)
811 $(call disable-python,No 'Python.h' (for Python 2.x support) was found: disables Python support - please install python-devel/python-dev)
813 LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
814 EXTLIBS += $(PYTHON_EMBED_LIBADD)
815 LANG_BINDINGS += $(obj-perf)python/perf.so
816 CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
817 $(call detected,CONFIG_LIBPYTHON)
823 ifeq ($(feature-libbfd), 1)
824 EXTLIBS += -lbfd -lopcodes
826 # we are on a system that requires -liberty and (maybe) -lz
827 # to link against -lbfd; test each case individually here
829 # call all detections now so we get correct
830 # status in VF output
831 $(call feature_check,libbfd-liberty)
832 $(call feature_check,libbfd-liberty-z)
834 ifeq ($(feature-libbfd-liberty), 1)
835 EXTLIBS += -lbfd -lopcodes -liberty
836 FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl
838 ifeq ($(feature-libbfd-liberty-z), 1)
839 EXTLIBS += -lbfd -lopcodes -liberty -lz
840 FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl
843 $(call feature_check,disassembler-four-args)
846 ifeq ($(feature-libbfd-buildid), 1)
847 CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
849 msg := $(warning Old version of libbfd/binutils things like PE executable profiling will not be available);
853 CFLAGS += -DNO_DEMANGLE
855 ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
858 ifeq ($(filter -liberty,$(EXTLIBS)),)
859 $(call feature_check,cplus-demangle)
861 # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
862 # or any of 'bfd iberty z' trinity
863 ifeq ($(feature-cplus-demangle), 1)
866 msg := $(warning No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling)
867 CFLAGS += -DNO_DEMANGLE
872 ifneq ($(filter -liberty,$(EXTLIBS)),)
873 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
877 ifneq ($(filter -lbfd,$(EXTLIBS)),)
878 CFLAGS += -DHAVE_LIBBFD_SUPPORT
882 ifeq ($(feature-zlib), 1)
883 CFLAGS += -DHAVE_ZLIB_SUPPORT
885 $(call detected,CONFIG_ZLIB)
892 ifeq ($(feature-lzma), 1)
893 CFLAGS += -DHAVE_LZMA_SUPPORT
895 $(call detected,CONFIG_LZMA)
897 msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
903 ifeq ($(feature-libzstd), 1)
904 CFLAGS += -DHAVE_ZSTD_SUPPORT
905 CFLAGS += $(LIBZSTD_CFLAGS)
906 LDFLAGS += $(LIBZSTD_LDFLAGS)
908 $(call detected,CONFIG_ZSTD)
910 msg := $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR);
916 ifeq ($(feature-libcap), 1)
917 CFLAGS += -DHAVE_LIBCAP_SUPPORT
919 $(call detected,CONFIG_LIBCAP)
921 msg := $(warning No libcap found, disables capability support, please install libcap-devel/libcap-dev);
927 ifeq ($(feature-backtrace), 1)
928 CFLAGS += -DHAVE_BACKTRACE_SUPPORT
933 ifeq ($(feature-libnuma), 0)
934 msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
937 ifeq ($(feature-numa_num_possible_cpus), 0)
938 msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
941 CFLAGS += -DHAVE_LIBNUMA_SUPPORT
943 $(call detected,CONFIG_NUMA)
948 ifdef HAVE_KVM_STAT_SUPPORT
949 CFLAGS += -DHAVE_KVM_STAT_SUPPORT
952 ifeq ($(feature-disassembler-four-args), 1)
953 CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
956 ifeq (${IS_64_BIT}, 1)
957 ifndef NO_PERF_READ_VDSO32
958 $(call feature_check,compile-32)
959 ifeq ($(feature-compile-32), 1)
960 CFLAGS += -DHAVE_PERF_READ_VDSO32
962 NO_PERF_READ_VDSO32 := 1
965 ifneq ($(SRCARCH), x86)
966 NO_PERF_READ_VDSOX32 := 1
968 ifndef NO_PERF_READ_VDSOX32
969 $(call feature_check,compile-x32)
970 ifeq ($(feature-compile-x32), 1)
971 CFLAGS += -DHAVE_PERF_READ_VDSOX32
973 NO_PERF_READ_VDSOX32 := 1
977 NO_PERF_READ_VDSO32 := 1
978 NO_PERF_READ_VDSOX32 := 1
981 ifndef NO_LIBBABELTRACE
982 $(call feature_check,libbabeltrace)
983 ifeq ($(feature-libbabeltrace), 1)
984 CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
985 LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
986 EXTLIBS += -lbabeltrace-ctf
987 $(call detected,CONFIG_LIBBABELTRACE)
989 msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
994 ifeq ($(SRCARCH),x86)
995 ifeq ($(feature-get_cpuid), 0)
996 msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
1001 $(call detected,CONFIG_AUXTRACE)
1002 CFLAGS += -DHAVE_AUXTRACE_SUPPORT
1007 ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
1008 JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
1010 ifneq (,$(wildcard /usr/sbin/alternatives))
1011 JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
1015 $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
1021 FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
1022 $(call feature_check,jvmti)
1023 ifeq ($(feature-jvmti), 1)
1024 $(call detected_var,JDIR)
1025 ifndef NO_JVMTI_CMLR
1026 FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
1027 $(call feature_check,jvmti-cmlr)
1028 ifeq ($(feature-jvmti-cmlr), 1)
1029 CFLAGS += -DHAVE_JVMTI_CMLR
1031 endif # NO_JVMTI_CMLR
1033 $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
1041 $(call feature_check,cxx)
1042 ifneq ($(feature-cxx), 1)
1043 msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
1045 $(call feature_check,llvm)
1046 $(call feature_check,llvm-version)
1047 ifneq ($(feature-llvm), 1)
1048 msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
1050 $(call feature_check,clang)
1051 ifneq ($(feature-clang), 1)
1052 msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
1054 CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
1055 CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
1056 $(call detected,CONFIG_CXX)
1057 $(call detected,CONFIG_CLANGLLVM)
1061 ifneq ($(feature-llvm-version),1)
1062 msg := $(warning This version of LLVM is not tested. May cause build errors)
1070 $(call feature_check,libpfm4)
1071 ifeq ($(feature-libpfm4), 1)
1072 CFLAGS += -DHAVE_LIBPFM
1074 ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
1075 $(call detected,CONFIG_LIBPFM4)
1077 msg := $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev);
1082 ifdef LIBTRACEEVENT_DYNAMIC
1083 $(call feature_check,libtraceevent)
1084 ifeq ($(feature-libtraceevent), 1)
1085 EXTLIBS += -ltraceevent
1087 dummy := $(error Error: No libtraceevent devel library found, please install libtraceevent-devel);
1091 # Among the variables below, these:
1099 # ETC_PERFCONFIG (but not sysconfdir)
1100 # can be specified as a relative path some/where/else;
1101 # this is interpreted as relative to $(prefix) and "perf" at
1102 # runtime figures out where they are based on the path to the executable.
1103 # This can help installing the suite in a relocatable way.
1105 # Make the path relative to DESTDIR, not to prefix
1109 bindir_relative = bin
1110 bindir = $(abspath $(prefix)/$(bindir_relative))
1112 infodir = share/info
1113 perfexecdir = libexec/perf-core
1114 perf_include_dir = lib/perf/include
1115 perf_examples_dir = lib/perf/examples
1116 sharedir = $(prefix)/share
1117 template_dir = share/perf-core/templates
1118 STRACE_GROUPS_DIR = share/perf-core/strace/groups
1119 htmldir = share/doc/perf-doc
1120 tipdir = share/doc/perf-tip
1121 srcdir = $(srctree)/tools/perf
1122 ifeq ($(prefix),/usr)
1124 ETC_PERFCONFIG = $(sysconfdir)/perfconfig
1126 sysconfdir = $(prefix)/etc
1127 ETC_PERFCONFIG = etc/perfconfig
1130 ifeq ($(SRCARCH)$(IS_64_BIT), x861)
1136 libdir = $(prefix)/$(lib)
1138 # Shell quote (do not use $(call) to accommodate ancient setups);
1139 ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
1140 STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
1141 DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
1142 bindir_SQ = $(subst ','\'',$(bindir))
1143 mandir_SQ = $(subst ','\'',$(mandir))
1144 infodir_SQ = $(subst ','\'',$(infodir))
1145 perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
1146 perf_include_dir_SQ = $(subst ','\'',$(perf_include_dir))
1147 perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
1148 template_dir_SQ = $(subst ','\'',$(template_dir))
1149 htmldir_SQ = $(subst ','\'',$(htmldir))
1150 tipdir_SQ = $(subst ','\'',$(tipdir))
1151 prefix_SQ = $(subst ','\'',$(prefix))
1152 sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
1153 libdir_SQ = $(subst ','\'',$(libdir))
1154 srcdir_SQ = $(subst ','\'',$(srcdir))
1156 ifneq ($(filter /%,$(firstword $(perfexecdir))),)
1157 perfexec_instdir = $(perfexecdir)
1158 perf_include_instdir = $(perf_include_dir)
1159 perf_examples_instdir = $(perf_examples_dir)
1160 STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
1161 tip_instdir = $(tipdir)
1163 perfexec_instdir = $(prefix)/$(perfexecdir)
1164 perf_include_instdir = $(prefix)/$(perf_include_dir)
1165 perf_examples_instdir = $(prefix)/$(perf_examples_dir)
1166 STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
1167 tip_instdir = $(prefix)/$(tipdir)
1169 perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
1170 perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
1171 perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
1172 STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
1173 tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
1175 # If we install to $(HOME) we keep the traceevent default:
1176 # $(HOME)/.traceevent/plugins
1177 # Otherwise we install plugins into the global $(libdir).
1179 plugindir=$(libdir)/traceevent/plugins
1180 plugindir_SQ= $(subst ','\'',$(plugindir))
1183 print_var = $(eval $(print_var_code)) $(info $(MSG))
1184 define print_var_code
1185 MSG = $(shell printf '...%30s: %s' $(1) $($(1)))
1189 # Display EXTRA features which are detected manualy
1190 # from here with feature_check call and thus cannot
1191 # be partof global state output.
1192 $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),))
1193 $(call print_var,prefix)
1194 $(call print_var,bindir)
1195 $(call print_var,libdir)
1196 $(call print_var,sysconfdir)
1197 $(call print_var,LIBUNWIND_DIR)
1198 $(call print_var,LIBDW_DIR)
1199 $(call print_var,JDIR)
1201 ifeq ($(dwarf-post-unwind),1)
1202 $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
1207 $(call detected_var,bindir_SQ)
1208 $(call detected_var,PYTHON_WORD)
1210 $(call detected_var,OUTPUT)
1212 $(call detected_var,htmldir_SQ)
1213 $(call detected_var,infodir_SQ)
1214 $(call detected_var,mandir_SQ)
1215 $(call detected_var,ETC_PERFCONFIG_SQ)
1216 $(call detected_var,STRACE_GROUPS_DIR_SQ)
1217 $(call detected_var,prefix_SQ)
1218 $(call detected_var,perfexecdir_SQ)
1219 $(call detected_var,perf_include_dir_SQ)
1220 $(call detected_var,perf_examples_dir_SQ)
1221 $(call detected_var,tipdir_SQ)
1222 $(call detected_var,srcdir_SQ)
1223 $(call detected_var,LIBDIR)
1224 $(call detected_var,GTK_CFLAGS)
1225 $(call detected_var,PERL_EMBED_CCOPTS)
1226 $(call detected_var,PYTHON_EMBED_CCOPTS)
1228 # re-generate FEATURE-DUMP as we may have called feature_check, found out
1229 # extra libraries to add to LDFLAGS of some other test and then redo those
1230 # tests, see the block about libbfd, disassembler-four-args, for instance.
1231 $(shell rm -f $(FEATURE_DUMP_FILENAME))
1232 $(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))