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$(OUTPUT)arch/mips/include/generated
93 LIBUNWIND_LIBS = -lunwind -lunwind-mips
96 ifeq ($(NO_PERF_REGS),0)
97 $(call detected,CONFIG_PERF_REGS)
100 # So far there's only x86 and arm libdw unwind support merged in perf.
101 # Disable it on all other architectures in case libdw unwind
102 # support is detected in system. Add supported architectures
104 ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky riscv))
105 NO_LIBDW_DWARF_UNWIND := 1
108 ifeq ($(LIBUNWIND_LIBS),)
112 # For linking with debug library, run like:
114 # make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
117 libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
118 define libunwind_arch_set_flags_code
119 FEATURE_CHECK_CFLAGS-libunwind-$(1) = -I$(LIBUNWIND_DIR)/include
120 FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
124 LIBUNWIND_CFLAGS = -I$(LIBUNWIND_DIR)/include
125 LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
126 LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64
127 $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
130 # Set per-feature check compilation flags
131 FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
132 FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
133 FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
134 FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
136 FEATURE_CHECK_LDFLAGS-libunwind-arm = -lunwind -lunwind-arm
137 FEATURE_CHECK_LDFLAGS-libunwind-aarch64 = -lunwind -lunwind-aarch64
138 FEATURE_CHECK_LDFLAGS-libunwind-x86 = -lunwind -llzma -lunwind-x86
139 FEATURE_CHECK_LDFLAGS-libunwind-x86_64 = -lunwind -llzma -lunwind-x86_64
141 FEATURE_CHECK_LDFLAGS-libcrypto = -lcrypto
144 LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
146 OPENCSDLIBS := -lopencsd_c_api -lopencsd
148 LIBOPENCSD_LDFLAGS := -L$(CSLIBS)
150 FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
151 FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
153 ifeq ($(NO_PERF_REGS),0)
154 CFLAGS += -DHAVE_PERF_REGS_SUPPORT
157 # for linking with debug library, run like:
158 # make DEBUG=1 LIBDW_DIR=/opt/libdw/
160 LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
161 LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
164 ifeq ($(findstring -static,${LDFLAGS}),-static)
165 DWARFLIBS += -lelf -lebl -ldl -lz -llzma -lbz2
167 FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
168 FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
170 # for linking with debug library, run like:
171 # make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
172 ifdef LIBBABELTRACE_DIR
173 LIBBABELTRACE_CFLAGS := -I$(LIBBABELTRACE_DIR)/include
174 LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
176 FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
177 FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
180 LIBZSTD_CFLAGS := -I$(LIBZSTD_DIR)/lib
181 LIBZSTD_LDFLAGS := -L$(LIBZSTD_DIR)/lib
183 FEATURE_CHECK_CFLAGS-libzstd := $(LIBZSTD_CFLAGS)
184 FEATURE_CHECK_LDFLAGS-libzstd := $(LIBZSTD_LDFLAGS)
186 FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
187 # include ARCH specific config
188 -include $(src-perf)/arch/$(SRCARCH)/Makefile
190 ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
191 CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
194 include $(srctree)/tools/scripts/utilities.mak
196 ifeq ($(call get-executable,$(FLEX)),)
197 dummy := $(error Error: $(FLEX) is missing on this system, please install it)
200 ifeq ($(call get-executable,$(BISON)),)
201 dummy := $(error Error: $(BISON) is missing on this system, please install it)
205 ifeq ($(shell expr $(shell $(BISON) --version | grep bison | sed -e 's/.\+ \([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/\1\2\3/g') \>\= 371), 1)
206 BISON_FILE_PREFIX_MAP := --file-prefix-map=$(OUTPUT)=
210 # Treat warnings as errors unless directed not to
212 CORE_CFLAGS += -Werror
221 ifeq ($(CC_NO_CLANG), 0)
229 PARSER_DEBUG_BISON := -t
230 PARSER_DEBUG_FLEX := -d
231 CFLAGS += -DPARSER_DEBUG
232 $(call detected_var,PARSER_DEBUG_BISON)
233 $(call detected_var,PARSER_DEBUG_FLEX)
236 # Try different combinations to accommodate systems that only have
237 # python[2][-config] in weird combinations but always preferring
238 # python2 and python2-config as per pep-0394. If python2 or python
239 # aren't found, then python3 is used.
240 PYTHON_AUTO := python
241 PYTHON_AUTO := $(if $(call get-executable,python3),python3,$(PYTHON_AUTO))
242 PYTHON_AUTO := $(if $(call get-executable,python),python,$(PYTHON_AUTO))
243 PYTHON_AUTO := $(if $(call get-executable,python2),python2,$(PYTHON_AUTO))
244 override PYTHON := $(call get-executable-or-default,PYTHON,$(PYTHON_AUTO))
245 PYTHON_AUTO_CONFIG := \
246 $(if $(call get-executable,$(PYTHON)-config),$(PYTHON)-config,python-config)
247 override PYTHON_CONFIG := \
248 $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON_AUTO_CONFIG))
250 grep-libs = $(filter -l%,$(1))
251 strip-libs = $(filter-out -l%,$(1))
253 PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
255 # Python 3.8 changed the output of `python-config --ldflags` to not include the
256 # '-lpythonX.Y' flag unless '--embed' is also passed. The feature check for
257 # libpython fails if that flag is not included in LDFLAGS
258 ifeq ($(shell $(PYTHON_CONFIG_SQ) --ldflags --embed 2>&1 1>/dev/null; echo $$?), 0)
259 PYTHON_CONFIG_LDFLAGS := --ldflags --embed
261 PYTHON_CONFIG_LDFLAGS := --ldflags
265 PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) $(PYTHON_CONFIG_LDFLAGS) 2>/dev/null)
266 PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
267 PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
268 PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null)
269 FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
272 FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
273 FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
274 FEATURE_CHECK_CFLAGS-libpython-version := $(PYTHON_EMBED_CCOPTS)
275 FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS)
277 FEATURE_CHECK_LDFLAGS-libaio = -lrt
279 FEATURE_CHECK_LDFLAGS-disassembler-four-args = -lbfd -lopcodes -ldl
281 CORE_CFLAGS += -fno-omit-frame-pointer
282 CORE_CFLAGS += -ggdb3
283 CORE_CFLAGS += -funwind-tables
285 CORE_CFLAGS += -Wextra
286 CORE_CFLAGS += -std=gnu99
288 CXXFLAGS += -std=gnu++11 -fno-exceptions -fno-rtti
290 CXXFLAGS += -fno-omit-frame-pointer
292 CXXFLAGS += -funwind-tables
293 CXXFLAGS += -Wno-strict-aliasing
295 # Enforce a non-executable stack, as we may regress (again) in the future by
296 # adding assembler files missing the .GNU-stack linker note.
297 LDFLAGS += -Wl,-z,noexecstack
299 EXTLIBS = -lpthread -lrt -lm -ldl
302 CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free
303 EXTLIBS += -ltcmalloc
306 ifeq ($(FEATURES_DUMP),)
307 # We will display at the end of this Makefile.config, using $(call feature_display_entries)
308 # As we may retry some feature detection here, see the disassembler-four-args case, for instance
309 FEATURE_DISPLAY_DEFERRED := 1
310 include $(srctree)/tools/build/Makefile.feature
312 include $(FEATURES_DUMP)
315 ifeq ($(feature-stackprotector-all), 1)
316 CORE_CFLAGS += -fstack-protector-all
320 ifeq ($(feature-fortify-source), 1)
321 CORE_CFLAGS += -D_FORTIFY_SOURCE=2
325 INC_FLAGS += -I$(srctree)/tools/lib/perf/include
326 INC_FLAGS += -I$(src-perf)/util/include
327 INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
328 INC_FLAGS += -I$(srctree)/tools/include/
329 INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
330 INC_FLAGS += -I$(srctree)/tools/include/uapi
331 INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
332 INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
334 # $(obj-perf) for generated common-cmds.h
335 # $(obj-perf)/util for generated bison/flex headers
337 INC_FLAGS += -I$(obj-perf)/util
338 INC_FLAGS += -I$(obj-perf)
341 INC_FLAGS += -I$(src-perf)/util
342 INC_FLAGS += -I$(src-perf)
343 INC_FLAGS += -I$(srctree)/tools/lib/
345 CORE_CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
347 CFLAGS += $(CORE_CFLAGS) $(INC_FLAGS)
348 CXXFLAGS += $(INC_FLAGS)
350 LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS)
352 ifeq ($(feature-sync-compare-and-swap), 1)
353 CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT
356 ifeq ($(feature-pthread-attr-setaffinity-np), 1)
357 CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
360 ifeq ($(feature-pthread-barrier), 1)
361 CFLAGS += -DHAVE_PTHREAD_BARRIER
365 $(call feature_check,bionic)
366 ifeq ($(feature-bionic), 1)
368 CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE
369 CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE
370 EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
371 EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
375 ifeq ($(feature-eventfd), 1)
376 CFLAGS += -DHAVE_EVENTFD_SUPPORT
379 ifeq ($(feature-get_current_dir_name), 1)
380 CFLAGS += -DHAVE_GET_CURRENT_DIR_NAME
383 ifeq ($(feature-gettid), 1)
384 CFLAGS += -DHAVE_GETTID
387 ifeq ($(feature-file-handle), 1)
388 CFLAGS += -DHAVE_FILE_HANDLE
395 NO_LIBDW_DWARF_UNWIND := 1
399 ifeq ($(feature-libelf), 0)
400 ifeq ($(feature-glibc), 1)
406 ifeq ($(LIBC_SUPPORT),1)
407 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);
413 NO_LIBDW_DWARF_UNWIND := 1
417 ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
418 ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
419 msg := $(error No libasan found, please install libasan);
423 ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
424 ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
425 msg := $(error No libubsan found, please install libubsan);
429 ifneq ($(filter s% -static%,$(LDFLAGS),),)
430 msg := $(error No static glibc found, please install glibc-static);
432 msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
436 ifndef NO_LIBDW_DWARF_UNWIND
437 ifneq ($(feature-libdw-dwarf-unwind),1)
438 NO_LIBDW_DWARF_UNWIND := 1
439 msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
442 ifneq ($(feature-dwarf), 1)
444 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);
448 ifneq ($(feature-dwarf_getlocations), 1)
449 msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
451 CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
452 endif # dwarf_getlocations
453 endif # Dwarf support
454 endif # libelf support
457 ifeq ($(feature-glibc), 1)
458 CFLAGS += -DHAVE_GLIBC_SUPPORT
461 ifeq ($(feature-libaio), 1)
463 CFLAGS += -DHAVE_AIO_SUPPORT
468 NO_LIBDW_DWARF_UNWIND := 1
471 ifeq ($(feature-sched_getcpu), 1)
472 CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
475 ifeq ($(feature-setns), 1)
476 CFLAGS += -DHAVE_SETNS_SUPPORT
477 $(call detected,CONFIG_SETNS)
481 $(call feature_check,libopencsd)
482 ifeq ($(feature-libopencsd), 1)
483 CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
484 ifeq ($(feature-reallocarray), 0)
485 CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
487 LDFLAGS += $(LIBOPENCSD_LDFLAGS)
488 EXTLIBS += $(OPENCSDLIBS)
489 $(call detected,CONFIG_LIBOPENCSD)
491 CFLAGS += -DCS_DEBUG_RAW
492 ifeq (${CSTRACE_RAW}, packed)
493 CFLAGS += -DCS_RAW_PACKED
500 CFLAGS += -DHAVE_LIBELF_SUPPORT
502 $(call detected,CONFIG_LIBELF)
504 ifeq ($(feature-libelf-getphdrnum), 1)
505 CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
508 ifeq ($(feature-libelf-gelf_getnote), 1)
509 CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
511 msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
514 ifeq ($(feature-libelf-getshdrstrndx), 1)
515 CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
518 ifndef NO_LIBDEBUGINFOD
519 $(call feature_check,libdebuginfod)
520 ifeq ($(feature-libdebuginfod), 1)
521 CFLAGS += -DHAVE_DEBUGINFOD_SUPPORT
522 EXTLIBS += -ldebuginfod
527 ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
528 msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
531 CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
532 LDFLAGS += $(LIBDW_LDFLAGS)
533 EXTLIBS += ${DWARFLIBS}
534 $(call detected,CONFIG_DWARF)
535 endif # PERF_HAVE_DWARF_REGS
539 ifeq ($(feature-bpf), 1)
540 CFLAGS += -DHAVE_LIBBPF_SUPPORT
541 $(call detected,CONFIG_LIBBPF)
543 # detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
544 $(call feature_check,libbpf)
546 ifeq ($(feature-libbpf), 1)
548 $(call detected,CONFIG_LIBBPF_DYNAMIC)
550 dummy := $(error Error: No libbpf devel library found, please install libbpf-devel);
556 ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
557 CFLAGS += -DHAVE_BPF_PROLOGUE
558 $(call detected,CONFIG_BPF_PROLOGUE)
560 msg := $(warning BPF prologue is not supported by architecture $(SRCARCH), missing regs_query_register_offset());
563 msg := $(warning DWARF support is off, BPF prologue is disabled);
570 ifneq ($(feature-sdt), 1)
571 msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
574 CFLAGS += -DHAVE_SDT_EVENT
575 $(call detected,CONFIG_SDT_EVENT)
579 ifdef PERF_HAVE_JITDUMP
581 $(call detected,CONFIG_JITDUMP)
582 CFLAGS += -DHAVE_JITDUMP
586 ifeq ($(SRCARCH),powerpc)
588 CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
595 $(call feature_check,libunwind-x86)
596 ifeq ($(feature-libunwind-x86), 1)
597 $(call detected,CONFIG_LIBUNWIND_X86)
598 CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
599 LDFLAGS += -lunwind-x86
600 EXTLIBS_LIBUNWIND += -lunwind-x86
604 $(call feature_check,libunwind-aarch64)
605 ifeq ($(feature-libunwind-aarch64), 1)
606 $(call detected,CONFIG_LIBUNWIND_AARCH64)
607 CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
608 LDFLAGS += -lunwind-aarch64
609 EXTLIBS_LIBUNWIND += -lunwind-aarch64
611 $(call feature_check,libunwind-debug-frame-aarch64)
612 ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
613 msg := $(warning No debug_frame support found in libunwind-aarch64);
614 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
618 ifneq ($(feature-libunwind), 1)
619 msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
620 NO_LOCAL_LIBUNWIND := 1
623 $(call detected,CONFIG_LOCAL_LIBUNWIND)
626 ifneq ($(have_libunwind), 1)
630 NO_LOCAL_LIBUNWIND := 1
634 ifneq ($(feature-bpf), 1)
635 msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
641 $(call feature_check,clang-bpf-co-re)
642 ifeq ($(feature-clang-bpf-co-re), 0)
643 dummy := $(error Error: clang too old/not installed. Please install recent clang to build with BUILD_BPF_SKEL)
645 $(call detected,CONFIG_PERF_BPF_SKEL)
646 CFLAGS += -DHAVE_BPF_SKEL
649 dwarf-post-unwind := 1
650 dwarf-post-unwind-text := BUG
652 # setup DWARF post unwinder
654 ifdef NO_LIBDW_DWARF_UNWIND
655 msg := $(warning Disabling post unwind, no support found.);
656 dwarf-post-unwind := 0
658 dwarf-post-unwind-text := libdw
659 $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
662 dwarf-post-unwind-text := libunwind
663 $(call detected,CONFIG_LIBUNWIND)
664 # Enable libunwind support by default.
665 ifndef NO_LIBDW_DWARF_UNWIND
666 NO_LIBDW_DWARF_UNWIND := 1
670 ifeq ($(dwarf-post-unwind),1)
671 CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
672 $(call detected,CONFIG_DWARF_UNWIND)
677 ifndef NO_LOCAL_LIBUNWIND
678 ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
679 $(call feature_check,libunwind-debug-frame)
680 ifneq ($(feature-libunwind-debug-frame), 1)
681 msg := $(warning No debug_frame support found in libunwind);
682 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
685 # non-ARM has no dwarf_find_debug_frame() function:
686 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
688 EXTLIBS += $(LIBUNWIND_LIBS)
689 LDFLAGS += $(LIBUNWIND_LIBS)
691 ifeq ($(findstring -static,${LDFLAGS}),-static)
692 # gcc -static links libgcc_eh which contans piece of libunwind
693 LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
697 CFLAGS += -DHAVE_LIBUNWIND_SUPPORT
698 CFLAGS += $(LIBUNWIND_CFLAGS)
699 LDFLAGS += $(LIBUNWIND_LDFLAGS)
700 EXTLIBS += $(EXTLIBS_LIBUNWIND)
703 ifeq ($(NO_SYSCALL_TABLE),0)
704 $(call detected,CONFIG_TRACE)
707 $(call feature_check,libaudit)
708 ifneq ($(feature-libaudit), 1)
709 msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
712 CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
714 $(call detected,CONFIG_TRACE)
720 ifneq ($(feature-libcrypto), 1)
721 msg := $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev);
724 CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
726 $(call detected,CONFIG_CRYPTO)
735 ifneq ($(feature-libslang), 1)
736 ifneq ($(feature-libslang-include-subdir), 1)
737 msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
740 CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
744 # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
745 CFLAGS += -DHAVE_SLANG_SUPPORT
747 $(call detected,CONFIG_SLANG)
752 FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
753 $(call feature_check,gtk2)
754 ifneq ($(feature-gtk2), 1)
755 msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
758 $(call feature_check,gtk2-infobar)
759 ifeq ($(feature-gtk2-infobar), 1)
760 GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
762 CFLAGS += -DHAVE_GTK2_SUPPORT
763 GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
764 GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
770 CFLAGS += -DNO_LIBPERL
772 PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
773 PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
774 PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
775 PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
776 PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
777 PERL_EMBED_CCOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
778 PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
779 FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
781 ifneq ($(feature-libperl), 1)
782 CFLAGS += -DNO_LIBPERL
784 msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
786 LDFLAGS += $(PERL_EMBED_LDFLAGS)
787 EXTLIBS += $(PERL_EMBED_LIBADD)
788 CFLAGS += -DHAVE_LIBPERL_SUPPORT
789 $(call detected,CONFIG_LIBPERL)
793 ifeq ($(feature-timerfd), 1)
794 CFLAGS += -DHAVE_TIMERFD_SUPPORT
796 msg := $(warning No timerfd support. Disables 'perf kvm stat live');
799 disable-python = $(eval $(disable-python_code))
800 define disable-python_code
801 CFLAGS += -DNO_LIBPYTHON
807 $(call disable-python,Python support disabled by user)
811 $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
813 PYTHON_WORD := $(call shell-wordify,$(PYTHON))
816 $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
819 ifneq ($(feature-libpython), 1)
820 $(call disable-python,No 'Python.h' (for Python 2.x support) was found: disables Python support - please install python-devel/python-dev)
822 LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
823 EXTLIBS += $(PYTHON_EMBED_LIBADD)
824 LANG_BINDINGS += $(obj-perf)python/perf.so
825 CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
826 $(call detected,CONFIG_LIBPYTHON)
832 ifeq ($(feature-libbfd), 1)
833 EXTLIBS += -lbfd -lopcodes
835 # we are on a system that requires -liberty and (maybe) -lz
836 # to link against -lbfd; test each case individually here
838 # call all detections now so we get correct
839 # status in VF output
840 $(call feature_check,libbfd-liberty)
841 $(call feature_check,libbfd-liberty-z)
843 ifeq ($(feature-libbfd-liberty), 1)
844 EXTLIBS += -lbfd -lopcodes -liberty
845 FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl
847 ifeq ($(feature-libbfd-liberty-z), 1)
848 EXTLIBS += -lbfd -lopcodes -liberty -lz
849 FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl
852 $(call feature_check,disassembler-four-args)
855 ifeq ($(feature-libbfd-buildid), 1)
856 CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
858 msg := $(warning Old version of libbfd/binutils things like PE executable profiling will not be available);
862 CFLAGS += -DNO_DEMANGLE
864 ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
867 ifeq ($(filter -liberty,$(EXTLIBS)),)
868 $(call feature_check,cplus-demangle)
870 # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
871 # or any of 'bfd iberty z' trinity
872 ifeq ($(feature-cplus-demangle), 1)
875 msg := $(warning No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling)
876 CFLAGS += -DNO_DEMANGLE
881 ifneq ($(filter -liberty,$(EXTLIBS)),)
882 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
886 ifneq ($(filter -lbfd,$(EXTLIBS)),)
887 CFLAGS += -DHAVE_LIBBFD_SUPPORT
891 ifeq ($(feature-zlib), 1)
892 CFLAGS += -DHAVE_ZLIB_SUPPORT
894 $(call detected,CONFIG_ZLIB)
901 ifeq ($(feature-lzma), 1)
902 CFLAGS += -DHAVE_LZMA_SUPPORT
904 $(call detected,CONFIG_LZMA)
906 msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
912 ifeq ($(feature-libzstd), 1)
913 CFLAGS += -DHAVE_ZSTD_SUPPORT
914 CFLAGS += $(LIBZSTD_CFLAGS)
915 LDFLAGS += $(LIBZSTD_LDFLAGS)
917 $(call detected,CONFIG_ZSTD)
919 msg := $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR);
925 ifeq ($(feature-libcap), 1)
926 CFLAGS += -DHAVE_LIBCAP_SUPPORT
928 $(call detected,CONFIG_LIBCAP)
930 msg := $(warning No libcap found, disables capability support, please install libcap-devel/libcap-dev);
936 ifeq ($(feature-backtrace), 1)
937 CFLAGS += -DHAVE_BACKTRACE_SUPPORT
942 ifeq ($(feature-libnuma), 0)
943 msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
946 ifeq ($(feature-numa_num_possible_cpus), 0)
947 msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
950 CFLAGS += -DHAVE_LIBNUMA_SUPPORT
952 $(call detected,CONFIG_NUMA)
957 ifdef HAVE_KVM_STAT_SUPPORT
958 CFLAGS += -DHAVE_KVM_STAT_SUPPORT
961 ifeq ($(feature-disassembler-four-args), 1)
962 CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
965 ifeq (${IS_64_BIT}, 1)
966 ifndef NO_PERF_READ_VDSO32
967 $(call feature_check,compile-32)
968 ifeq ($(feature-compile-32), 1)
969 CFLAGS += -DHAVE_PERF_READ_VDSO32
971 NO_PERF_READ_VDSO32 := 1
974 ifneq ($(SRCARCH), x86)
975 NO_PERF_READ_VDSOX32 := 1
977 ifndef NO_PERF_READ_VDSOX32
978 $(call feature_check,compile-x32)
979 ifeq ($(feature-compile-x32), 1)
980 CFLAGS += -DHAVE_PERF_READ_VDSOX32
982 NO_PERF_READ_VDSOX32 := 1
986 NO_PERF_READ_VDSO32 := 1
987 NO_PERF_READ_VDSOX32 := 1
990 ifndef NO_LIBBABELTRACE
991 $(call feature_check,libbabeltrace)
992 ifeq ($(feature-libbabeltrace), 1)
993 CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
994 LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
995 EXTLIBS += -lbabeltrace-ctf
996 $(call detected,CONFIG_LIBBABELTRACE)
998 msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
1003 ifeq ($(SRCARCH),x86)
1004 ifeq ($(feature-get_cpuid), 0)
1005 msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
1010 $(call detected,CONFIG_AUXTRACE)
1011 CFLAGS += -DHAVE_AUXTRACE_SUPPORT
1016 ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
1017 JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
1019 ifneq (,$(wildcard /usr/sbin/alternatives))
1020 JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
1024 $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
1030 FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
1031 $(call feature_check,jvmti)
1032 ifeq ($(feature-jvmti), 1)
1033 $(call detected_var,JDIR)
1034 ifndef NO_JVMTI_CMLR
1035 FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
1036 $(call feature_check,jvmti-cmlr)
1037 ifeq ($(feature-jvmti-cmlr), 1)
1038 CFLAGS += -DHAVE_JVMTI_CMLR
1040 endif # NO_JVMTI_CMLR
1042 $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
1050 $(call feature_check,cxx)
1051 ifneq ($(feature-cxx), 1)
1052 msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
1054 $(call feature_check,llvm)
1055 $(call feature_check,llvm-version)
1056 ifneq ($(feature-llvm), 1)
1057 msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
1059 $(call feature_check,clang)
1060 ifneq ($(feature-clang), 1)
1061 msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
1063 CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
1064 CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
1065 $(call detected,CONFIG_CXX)
1066 $(call detected,CONFIG_CLANGLLVM)
1070 ifneq ($(feature-llvm-version),1)
1071 msg := $(warning This version of LLVM is not tested. May cause build errors)
1079 $(call feature_check,libpfm4)
1080 ifeq ($(feature-libpfm4), 1)
1081 CFLAGS += -DHAVE_LIBPFM
1083 ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
1084 $(call detected,CONFIG_LIBPFM4)
1086 msg := $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev);
1091 ifdef LIBTRACEEVENT_DYNAMIC
1092 $(call feature_check,libtraceevent)
1093 ifeq ($(feature-libtraceevent), 1)
1094 EXTLIBS += -ltraceevent
1096 dummy := $(error Error: No libtraceevent devel library found, please install libtraceevent-devel);
1100 # Among the variables below, these:
1108 # ETC_PERFCONFIG (but not sysconfdir)
1109 # can be specified as a relative path some/where/else;
1110 # this is interpreted as relative to $(prefix) and "perf" at
1111 # runtime figures out where they are based on the path to the executable.
1112 # This can help installing the suite in a relocatable way.
1114 # Make the path relative to DESTDIR, not to prefix
1118 bindir_relative = bin
1119 bindir = $(abspath $(prefix)/$(bindir_relative))
1120 includedir_relative = include
1121 includedir = $(abspath $(prefix)/$(includedir_relative))
1123 infodir = share/info
1124 perfexecdir = libexec/perf-core
1125 perf_include_dir = lib/perf/include
1126 perf_examples_dir = lib/perf/examples
1127 sharedir = $(prefix)/share
1128 template_dir = share/perf-core/templates
1129 STRACE_GROUPS_DIR = share/perf-core/strace/groups
1130 htmldir = share/doc/perf-doc
1131 tipdir = share/doc/perf-tip
1132 srcdir = $(srctree)/tools/perf
1133 ifeq ($(prefix),/usr)
1135 ETC_PERFCONFIG = $(sysconfdir)/perfconfig
1137 sysconfdir = $(prefix)/etc
1138 ETC_PERFCONFIG = etc/perfconfig
1141 ifeq ($(SRCARCH)$(IS_64_BIT), x861)
1147 libdir = $(prefix)/$(lib)
1149 # Shell quote (do not use $(call) to accommodate ancient setups);
1150 ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
1151 STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
1152 DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
1153 bindir_SQ = $(subst ','\'',$(bindir))
1154 includedir_SQ = $(subst ','\'',$(includedir))
1155 mandir_SQ = $(subst ','\'',$(mandir))
1156 infodir_SQ = $(subst ','\'',$(infodir))
1157 perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
1158 perf_include_dir_SQ = $(subst ','\'',$(perf_include_dir))
1159 perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
1160 template_dir_SQ = $(subst ','\'',$(template_dir))
1161 htmldir_SQ = $(subst ','\'',$(htmldir))
1162 tipdir_SQ = $(subst ','\'',$(tipdir))
1163 prefix_SQ = $(subst ','\'',$(prefix))
1164 sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
1165 libdir_SQ = $(subst ','\'',$(libdir))
1166 srcdir_SQ = $(subst ','\'',$(srcdir))
1168 ifneq ($(filter /%,$(firstword $(perfexecdir))),)
1169 perfexec_instdir = $(perfexecdir)
1170 perf_include_instdir = $(perf_include_dir)
1171 perf_examples_instdir = $(perf_examples_dir)
1172 STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
1173 tip_instdir = $(tipdir)
1175 perfexec_instdir = $(prefix)/$(perfexecdir)
1176 perf_include_instdir = $(prefix)/$(perf_include_dir)
1177 perf_examples_instdir = $(prefix)/$(perf_examples_dir)
1178 STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
1179 tip_instdir = $(prefix)/$(tipdir)
1181 perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
1182 perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
1183 perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
1184 STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
1185 tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
1187 # If we install to $(HOME) we keep the traceevent default:
1188 # $(HOME)/.traceevent/plugins
1189 # Otherwise we install plugins into the global $(libdir).
1191 plugindir=$(libdir)/traceevent/plugins
1192 plugindir_SQ= $(subst ','\'',$(plugindir))
1195 print_var = $(eval $(print_var_code)) $(info $(MSG))
1196 define print_var_code
1197 MSG = $(shell printf '...%30s: %s' $(1) $($(1)))
1201 # Display EXTRA features which are detected manualy
1202 # from here with feature_check call and thus cannot
1203 # be partof global state output.
1204 $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),))
1205 $(call print_var,prefix)
1206 $(call print_var,bindir)
1207 $(call print_var,libdir)
1208 $(call print_var,sysconfdir)
1209 $(call print_var,LIBUNWIND_DIR)
1210 $(call print_var,LIBDW_DIR)
1211 $(call print_var,JDIR)
1213 ifeq ($(dwarf-post-unwind),1)
1214 $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
1219 $(call detected_var,bindir_SQ)
1220 $(call detected_var,PYTHON_WORD)
1222 $(call detected_var,OUTPUT)
1224 $(call detected_var,htmldir_SQ)
1225 $(call detected_var,infodir_SQ)
1226 $(call detected_var,mandir_SQ)
1227 $(call detected_var,ETC_PERFCONFIG_SQ)
1228 $(call detected_var,STRACE_GROUPS_DIR_SQ)
1229 $(call detected_var,prefix_SQ)
1230 $(call detected_var,perfexecdir_SQ)
1231 $(call detected_var,perf_include_dir_SQ)
1232 $(call detected_var,perf_examples_dir_SQ)
1233 $(call detected_var,tipdir_SQ)
1234 $(call detected_var,srcdir_SQ)
1235 $(call detected_var,LIBDIR)
1236 $(call detected_var,GTK_CFLAGS)
1237 $(call detected_var,PERL_EMBED_CCOPTS)
1238 $(call detected_var,PYTHON_EMBED_CCOPTS)
1239 ifneq ($(BISON_FILE_PREFIX_MAP),)
1240 $(call detected_var,BISON_FILE_PREFIX_MAP)
1243 # re-generate FEATURE-DUMP as we may have called feature_check, found out
1244 # extra libraries to add to LDFLAGS of some other test and then redo those
1245 # tests, see the block about libbfd, disassembler-four-args, for instance.
1246 $(shell rm -f $(FEATURE_DUMP_FILENAME))
1247 $(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))
1249 ifeq ($(feature_display),1)
1250 $(call feature_display_entries)