3 src-perf := $(srctree)/tools/perf
11 obj-perf := $(abspath $(obj-perf))/
14 $(shell printf "" > $(OUTPUT).config-detected)
15 detected = $(shell echo "$(1)=y" >> $(OUTPUT).config-detected)
16 detected_var = $(shell echo "$(1)=$($(1))" >> $(OUTPUT).config-detected)
18 CFLAGS := $(EXTRA_CFLAGS) $(EXTRA_WARNINGS)
20 include $(srctree)/tools/scripts/Makefile.arch
22 $(call detected_var,SRCARCH)
26 # Additional ARCH settings for ppc
27 ifeq ($(SRCARCH),powerpc)
29 LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
32 # Additional ARCH settings for x86
34 $(call detected,CONFIG_X86)
35 ifeq (${IS_64_BIT}, 1)
36 CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT -DHAVE_SYSCALL_TABLE -I$(OUTPUT)arch/x86/include/generated
37 ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
38 LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma
39 $(call detected,CONFIG_X86_64)
41 LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
48 LIBUNWIND_LIBS = -lunwind -lunwind-arm
51 ifeq ($(SRCARCH),arm64)
53 LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
56 ifeq ($(NO_PERF_REGS),0)
57 $(call detected,CONFIG_PERF_REGS)
60 # So far there's only x86 and arm libdw unwind support merged in perf.
61 # Disable it on all other architectures in case libdw unwind
62 # support is detected in system. Add supported architectures
64 ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm powerpc))
65 NO_LIBDW_DWARF_UNWIND := 1
68 ifeq ($(LIBUNWIND_LIBS),)
72 # For linking with debug library, run like:
74 # make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
77 libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
78 define libunwind_arch_set_flags_code
79 FEATURE_CHECK_CFLAGS-libunwind-$(1) = -I$(LIBUNWIND_DIR)/include
80 FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
84 LIBUNWIND_CFLAGS = -I$(LIBUNWIND_DIR)/include
85 LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
86 LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64
87 $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
90 # Set per-feature check compilation flags
91 FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
92 FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
93 FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
94 FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
96 ifeq ($(NO_PERF_REGS),0)
97 CFLAGS += -DHAVE_PERF_REGS_SUPPORT
100 # for linking with debug library, run like:
101 # make DEBUG=1 LIBDW_DIR=/opt/libdw/
103 LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
104 LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
107 ifeq ($(findstring -static,${LDFLAGS}),-static)
108 DWARFLIBS += -lelf -lebl -ldl -lz -llzma -lbz2
110 FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
111 FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
113 # for linking with debug library, run like:
114 # make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
115 ifdef LIBBABELTRACE_DIR
116 LIBBABELTRACE_CFLAGS := -I$(LIBBABELTRACE_DIR)/include
117 LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
119 FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
120 FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
122 FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
123 # include ARCH specific config
124 -include $(src-perf)/arch/$(SRCARCH)/Makefile
126 ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
127 CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
130 include $(srctree)/tools/scripts/utilities.mak
132 ifeq ($(call get-executable,$(FLEX)),)
133 dummy := $(error Error: $(FLEX) is missing on this system, please install it)
136 ifeq ($(call get-executable,$(BISON)),)
137 dummy := $(error Error: $(BISON) is missing on this system, please install it)
140 # Treat warnings as errors unless directed not to
151 ifeq ($(CC_NO_CLANG), 0)
159 PARSER_DEBUG_BISON := -t
160 PARSER_DEBUG_FLEX := -d
161 CFLAGS += -DPARSER_DEBUG
162 $(call detected_var,PARSER_DEBUG_BISON)
163 $(call detected_var,PARSER_DEBUG_FLEX)
166 # Try different combinations to accommodate systems that only have
167 # python[2][-config] in weird combinations but always preferring
168 # python2 and python2-config as per pep-0394. If we catch a
169 # python[-config] in version 3, the version check will kill it.
170 PYTHON2 := $(if $(call get-executable,python2),python2,python)
171 override PYTHON := $(call get-executable-or-default,PYTHON,$(PYTHON2))
173 $(if $(call get-executable,$(PYTHON)-config),$(PYTHON)-config,python-config)
174 override PYTHON_CONFIG := \
175 $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON2_CONFIG))
177 grep-libs = $(filter -l%,$(1))
178 strip-libs = $(filter-out -l%,$(1))
180 PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
182 # Python 3.8 changed the output of `python-config --ldflags` to not include the
183 # '-lpythonX.Y' flag unless '--embed' is also passed. The feature check for
184 # libpython fails if that flag is not included in LDFLAGS
185 ifeq ($(shell $(PYTHON_CONFIG_SQ) --ldflags --embed 2>&1 1>/dev/null; echo $$?), 0)
186 PYTHON_CONFIG_LDFLAGS := --ldflags --embed
188 PYTHON_CONFIG_LDFLAGS := --ldflags
192 PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) $(PYTHON_CONFIG_LDFLAGS) 2>/dev/null)
193 PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
194 PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
195 PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null)
196 ifeq ($(CC_NO_CLANG), 1)
197 PYTHON_EMBED_CCOPTS := $(filter-out -specs=%,$(PYTHON_EMBED_CCOPTS))
199 FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
202 FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
203 FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
204 FEATURE_CHECK_CFLAGS-libpython-version := $(PYTHON_EMBED_CCOPTS)
205 FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS)
207 CFLAGS += -fno-omit-frame-pointer
209 CFLAGS += -funwind-tables
214 CXXFLAGS += -std=gnu++11 -fno-exceptions -fno-rtti
216 CXXFLAGS += -fno-omit-frame-pointer
218 CXXFLAGS += -funwind-tables
219 CXXFLAGS += -Wno-strict-aliasing
221 # Enforce a non-executable stack, as we may regress (again) in the future by
222 # adding assembler files missing the .GNU-stack linker note.
223 LDFLAGS += -Wl,-z,noexecstack
225 EXTLIBS = -lpthread -lrt -lm -ldl
227 ifeq ($(FEATURES_DUMP),)
228 include $(srctree)/tools/build/Makefile.feature
230 include $(FEATURES_DUMP)
233 ifeq ($(feature-stackprotector-all), 1)
234 CFLAGS += -fstack-protector-all
238 ifeq ($(feature-fortify-source), 1)
239 CFLAGS += -D_FORTIFY_SOURCE=2
243 INC_FLAGS += -I$(src-perf)/util/include
244 INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
245 INC_FLAGS += -I$(srctree)/tools/include/uapi
246 INC_FLAGS += -I$(srctree)/tools/include/
247 INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
248 INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
249 INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
251 # $(obj-perf) for generated common-cmds.h
252 # $(obj-perf)/util for generated bison/flex headers
254 INC_FLAGS += -I$(obj-perf)/util
255 INC_FLAGS += -I$(obj-perf)
258 INC_FLAGS += -I$(src-perf)/util
259 INC_FLAGS += -I$(src-perf)
260 INC_FLAGS += -I$(srctree)/tools/lib/
262 CFLAGS += $(INC_FLAGS)
263 CXXFLAGS += $(INC_FLAGS)
265 CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
267 ifeq ($(feature-sync-compare-and-swap), 1)
268 CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT
271 ifeq ($(feature-pthread-attr-setaffinity-np), 1)
272 CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
275 ifeq ($(feature-pthread-barrier), 1)
276 CFLAGS += -DHAVE_PTHREAD_BARRIER
280 $(call feature_check,bionic)
281 ifeq ($(feature-bionic), 1)
283 EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
284 EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
288 ifeq ($(feature-eventfd), 1)
289 CFLAGS += -DHAVE_EVENTFD
292 ifeq ($(feature-get_current_dir_name), 1)
293 CFLAGS += -DHAVE_GET_CURRENT_DIR_NAME
296 ifeq ($(feature-gettid), 1)
297 CFLAGS += -DHAVE_GETTID
304 NO_LIBDW_DWARF_UNWIND := 1
308 ifeq ($(feature-libelf), 0)
309 ifeq ($(feature-glibc), 1)
315 ifeq ($(LIBC_SUPPORT),1)
316 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);
322 NO_LIBDW_DWARF_UNWIND := 1
326 ifneq ($(filter s% -static%,$(LDFLAGS),),)
327 msg := $(error No static glibc found, please install glibc-static);
329 msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
333 ifndef NO_LIBDW_DWARF_UNWIND
334 ifneq ($(feature-libdw-dwarf-unwind),1)
335 NO_LIBDW_DWARF_UNWIND := 1
336 msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
339 ifneq ($(feature-dwarf), 1)
341 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);
345 ifneq ($(feature-dwarf_getlocations), 1)
346 msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
348 CFLAGS += -DHAVE_DWARF_GETLOCATIONS
349 endif # dwarf_getlocations
350 endif # Dwarf support
351 endif # libelf support
355 NO_LIBDW_DWARF_UNWIND := 1
358 ifeq ($(feature-sched_getcpu), 1)
359 CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
362 ifeq ($(feature-setns), 1)
363 CFLAGS += -DHAVE_SETNS_SUPPORT
364 $(call detected,CONFIG_SETNS)
368 CFLAGS += -DHAVE_LIBELF_SUPPORT
370 $(call detected,CONFIG_LIBELF)
372 ifeq ($(feature-libelf-mmap), 1)
373 CFLAGS += -DHAVE_LIBELF_MMAP_SUPPORT
376 ifeq ($(feature-libelf-getphdrnum), 1)
377 CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
380 ifeq ($(feature-libelf-gelf_getnote), 1)
381 CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
383 msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
386 ifeq ($(feature-libelf-getshdrstrndx), 1)
387 CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
391 ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
392 msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
395 CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
396 LDFLAGS += $(LIBDW_LDFLAGS)
397 EXTLIBS += ${DWARFLIBS}
398 $(call detected,CONFIG_DWARF)
399 endif # PERF_HAVE_DWARF_REGS
403 ifeq ($(feature-bpf), 1)
404 CFLAGS += -DHAVE_LIBBPF_SUPPORT
405 $(call detected,CONFIG_LIBBPF)
409 ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
410 CFLAGS += -DHAVE_BPF_PROLOGUE
411 $(call detected,CONFIG_BPF_PROLOGUE)
413 msg := $(warning BPF prologue is not supported by architecture $(SRCARCH), missing regs_query_register_offset());
416 msg := $(warning DWARF support is off, BPF prologue is disabled);
423 ifneq ($(feature-sdt), 1)
424 msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
427 CFLAGS += -DHAVE_SDT_EVENT
428 $(call detected,CONFIG_SDT_EVENT)
432 ifdef PERF_HAVE_JITDUMP
434 $(call detected,CONFIG_JITDUMP)
435 CFLAGS += -DHAVE_JITDUMP
439 ifeq ($(SRCARCH),powerpc)
441 CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
448 ifeq ($(feature-libunwind-x86), 1)
449 $(call detected,CONFIG_LIBUNWIND_X86)
450 CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
451 LDFLAGS += -lunwind-x86
452 EXTLIBS_LIBUNWIND += -lunwind-x86
456 ifeq ($(feature-libunwind-aarch64), 1)
457 $(call detected,CONFIG_LIBUNWIND_AARCH64)
458 CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
459 LDFLAGS += -lunwind-aarch64
460 EXTLIBS_LIBUNWIND += -lunwind-aarch64
462 $(call feature_check,libunwind-debug-frame-aarch64)
463 ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
464 msg := $(warning No debug_frame support found in libunwind-aarch64);
465 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
469 ifneq ($(feature-libunwind), 1)
470 msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
471 NO_LOCAL_LIBUNWIND := 1
474 $(call detected,CONFIG_LOCAL_LIBUNWIND)
477 ifneq ($(have_libunwind), 1)
481 NO_LOCAL_LIBUNWIND := 1
485 ifneq ($(feature-bpf), 1)
486 msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
491 dwarf-post-unwind := 1
492 dwarf-post-unwind-text := BUG
494 # setup DWARF post unwinder
496 ifdef NO_LIBDW_DWARF_UNWIND
497 msg := $(warning Disabling post unwind, no support found.);
498 dwarf-post-unwind := 0
500 dwarf-post-unwind-text := libdw
501 $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
504 dwarf-post-unwind-text := libunwind
505 $(call detected,CONFIG_LIBUNWIND)
506 # Enable libunwind support by default.
507 ifndef NO_LIBDW_DWARF_UNWIND
508 NO_LIBDW_DWARF_UNWIND := 1
512 ifeq ($(dwarf-post-unwind),1)
513 CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
514 $(call detected,CONFIG_DWARF_UNWIND)
519 ifndef NO_LOCAL_LIBUNWIND
520 ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
521 $(call feature_check,libunwind-debug-frame)
522 ifneq ($(feature-libunwind-debug-frame), 1)
523 msg := $(warning No debug_frame support found in libunwind);
524 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
527 # non-ARM has no dwarf_find_debug_frame() function:
528 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
530 EXTLIBS += $(LIBUNWIND_LIBS)
531 LDFLAGS += $(LIBUNWIND_LIBS)
533 ifeq ($(findstring -static,${LDFLAGS}),-static)
534 # gcc -static links libgcc_eh which contans piece of libunwind
535 LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
539 CFLAGS += -DHAVE_LIBUNWIND_SUPPORT
540 CFLAGS += $(LIBUNWIND_CFLAGS)
541 LDFLAGS += $(LIBUNWIND_LDFLAGS)
542 EXTLIBS += $(EXTLIBS_LIBUNWIND)
546 ifneq ($(feature-libaudit), 1)
547 msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
550 CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
552 $(call detected,CONFIG_AUDIT)
557 ifneq ($(feature-libcrypto), 1)
558 msg := $(warning No libcrypto.h found, disables jitted code injection, please install libssl-devel or libssl-dev);
561 CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
563 $(call detected,CONFIG_CRYPTO)
572 ifneq ($(feature-libslang), 1)
573 msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
576 # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
577 CFLAGS += -I/usr/include/slang
578 CFLAGS += -DHAVE_SLANG_SUPPORT
580 $(call detected,CONFIG_SLANG)
585 FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
586 ifneq ($(feature-gtk2), 1)
587 msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
590 ifeq ($(feature-gtk2-infobar), 1)
591 GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
593 CFLAGS += -DHAVE_GTK2_SUPPORT
594 GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
595 GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
602 CFLAGS += -DNO_LIBPERL
604 PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
605 PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
606 PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
607 PERL_EMBED_CCOPTS = `perl -MExtUtils::Embed -e ccopts 2>/dev/null`
608 FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
610 ifneq ($(feature-libperl), 1)
611 CFLAGS += -DNO_LIBPERL
613 msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
615 LDFLAGS += $(PERL_EMBED_LDFLAGS)
616 EXTLIBS += $(PERL_EMBED_LIBADD)
617 $(call detected,CONFIG_LIBPERL)
621 ifeq ($(feature-timerfd), 1)
622 CFLAGS += -DHAVE_TIMERFD_SUPPORT
624 msg := $(warning No timerfd support. Disables 'perf kvm stat live');
627 disable-python = $(eval $(disable-python_code))
628 define disable-python_code
629 CFLAGS += -DNO_LIBPYTHON
635 $(call disable-python,Python support disabled by user)
639 $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
641 PYTHON_WORD := $(call shell-wordify,$(PYTHON))
644 $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
647 ifneq ($(feature-libpython), 1)
648 $(call disable-python,No 'Python.h' (for Python 2.x support) was found: disables Python support - please install python-devel/python-dev)
650 ifneq ($(feature-libpython-version), 1)
651 $(warning Python 3 is not yet supported; please set)
652 $(warning PYTHON and/or PYTHON_CONFIG appropriately.)
653 $(warning If you also have Python 2 installed, then)
654 $(warning try something like:)
656 $(warning $(and ,) make PYTHON=python2)
658 $(warning Otherwise, disable Python support entirely:)
660 $(warning $(and ,) make NO_LIBPYTHON=1)
664 LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
665 EXTLIBS += $(PYTHON_EMBED_LIBADD)
666 LANG_BINDINGS += $(obj-perf)python/perf.so
667 $(call detected,CONFIG_LIBPYTHON)
674 ifeq ($(feature-libbfd), 1)
677 # call all detections now so we get correct
678 # status in VF output
679 $(call feature_check,liberty)
680 $(call feature_check,liberty-z)
681 $(call feature_check,cplus-demangle)
683 ifeq ($(feature-liberty), 1)
686 ifeq ($(feature-liberty-z), 1)
687 EXTLIBS += -liberty -lz
693 CFLAGS += -DNO_DEMANGLE
695 ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
697 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
699 ifneq ($(feature-libbfd), 1)
700 ifneq ($(feature-liberty), 1)
701 ifneq ($(feature-liberty-z), 1)
702 # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
703 # or any of 'bfd iberty z' trinity
704 ifeq ($(feature-cplus-demangle), 1)
706 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
708 msg := $(warning No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling)
709 CFLAGS += -DNO_DEMANGLE
717 ifneq ($(filter -lbfd,$(EXTLIBS)),)
718 CFLAGS += -DHAVE_LIBBFD_SUPPORT
722 ifeq ($(feature-zlib), 1)
723 CFLAGS += -DHAVE_ZLIB_SUPPORT
725 $(call detected,CONFIG_ZLIB)
732 ifeq ($(feature-lzma), 1)
733 CFLAGS += -DHAVE_LZMA_SUPPORT
735 $(call detected,CONFIG_LZMA)
737 msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
743 ifeq ($(feature-backtrace), 1)
744 CFLAGS += -DHAVE_BACKTRACE_SUPPORT
749 ifeq ($(feature-libnuma), 0)
750 msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
753 ifeq ($(feature-numa_num_possible_cpus), 0)
754 msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
757 CFLAGS += -DHAVE_LIBNUMA_SUPPORT
759 $(call detected,CONFIG_NUMA)
764 ifdef HAVE_KVM_STAT_SUPPORT
765 CFLAGS += -DHAVE_KVM_STAT_SUPPORT
768 ifeq (${IS_64_BIT}, 1)
769 ifndef NO_PERF_READ_VDSO32
770 $(call feature_check,compile-32)
771 ifeq ($(feature-compile-32), 1)
772 CFLAGS += -DHAVE_PERF_READ_VDSO32
774 NO_PERF_READ_VDSO32 := 1
777 ifneq ($(SRCARCH), x86)
778 NO_PERF_READ_VDSOX32 := 1
780 ifndef NO_PERF_READ_VDSOX32
781 $(call feature_check,compile-x32)
782 ifeq ($(feature-compile-x32), 1)
783 CFLAGS += -DHAVE_PERF_READ_VDSOX32
785 NO_PERF_READ_VDSOX32 := 1
789 NO_PERF_READ_VDSO32 := 1
790 NO_PERF_READ_VDSOX32 := 1
794 $(call feature_check,libbabeltrace)
795 ifeq ($(feature-libbabeltrace), 1)
796 CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
797 LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
798 EXTLIBS += -lbabeltrace-ctf
799 $(call detected,CONFIG_LIBBABELTRACE)
801 msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
806 ifeq ($(SRCARCH),x86)
807 ifeq ($(feature-get_cpuid), 0)
808 msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
813 $(call detected,CONFIG_AUXTRACE)
814 CFLAGS += -DHAVE_AUXTRACE_SUPPORT
819 ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
820 JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
822 ifneq (,$(wildcard /usr/sbin/alternatives))
823 JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
827 $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
833 FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
834 $(call feature_check,jvmti)
835 ifeq ($(feature-jvmti), 1)
836 $(call detected_var,JDIR)
838 $(warning No openjdk development package found, please install JDK package)
846 $(call feature_check,cxx)
847 ifneq ($(feature-cxx), 1)
848 msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
850 $(call feature_check,llvm)
851 $(call feature_check,llvm-version)
852 ifneq ($(feature-llvm), 1)
853 msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
855 $(call feature_check,clang)
856 ifneq ($(feature-clang), 1)
857 msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
859 CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
860 CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
861 $(call detected,CONFIG_CXX)
862 $(call detected,CONFIG_CLANGLLVM)
866 ifneq ($(feature-llvm-version),1)
867 msg := $(warning This version of LLVM is not tested. May cause build errors)
874 # Among the variables below, these:
880 # ETC_PERFCONFIG (but not sysconfdir)
881 # can be specified as a relative path some/where/else;
882 # this is interpreted as relative to $(prefix) and "perf" at
883 # runtime figures out where they are based on the path to the executable.
884 # This can help installing the suite in a relocatable way.
886 # Make the path relative to DESTDIR, not to prefix
890 bindir_relative = bin
891 bindir = $(abspath $(prefix)/$(bindir_relative))
894 perfexecdir = libexec/perf-core
895 sharedir = $(prefix)/share
896 template_dir = share/perf-core/templates
897 STRACE_GROUPS_DIR = share/perf-core/strace/groups
898 htmldir = share/doc/perf-doc
899 tipdir = share/doc/perf-tip
900 srcdir = $(srctree)/tools/perf
901 ifeq ($(prefix),/usr)
903 ETC_PERFCONFIG = $(sysconfdir)/perfconfig
905 sysconfdir = $(prefix)/etc
906 ETC_PERFCONFIG = etc/perfconfig
909 ifeq ($(SRCARCH)$(IS_64_BIT), x861)
915 libdir = $(prefix)/$(lib)
917 # Shell quote (do not use $(call) to accommodate ancient setups);
918 ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
919 STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
920 DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
921 bindir_SQ = $(subst ','\'',$(bindir))
922 mandir_SQ = $(subst ','\'',$(mandir))
923 infodir_SQ = $(subst ','\'',$(infodir))
924 perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
925 template_dir_SQ = $(subst ','\'',$(template_dir))
926 htmldir_SQ = $(subst ','\'',$(htmldir))
927 tipdir_SQ = $(subst ','\'',$(tipdir))
928 prefix_SQ = $(subst ','\'',$(prefix))
929 sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
930 libdir_SQ = $(subst ','\'',$(libdir))
931 srcdir_SQ = $(subst ','\'',$(srcdir))
933 ifneq ($(filter /%,$(firstword $(perfexecdir))),)
934 perfexec_instdir = $(perfexecdir)
935 STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
936 tip_instdir = $(tipdir)
938 perfexec_instdir = $(prefix)/$(perfexecdir)
939 STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
940 tip_instdir = $(prefix)/$(tipdir)
942 perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
943 STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
944 tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
946 # If we install to $(HOME) we keep the traceevent default:
947 # $(HOME)/.traceevent/plugins
948 # Otherwise we install plugins into the global $(libdir).
950 plugindir=$(libdir)/traceevent/plugins
951 plugindir_SQ= $(subst ','\'',$(plugindir))
954 print_var = $(eval $(print_var_code)) $(info $(MSG))
955 define print_var_code
956 MSG = $(shell printf '...%30s: %s' $(1) $($(1)))
960 $(call print_var,prefix)
961 $(call print_var,bindir)
962 $(call print_var,libdir)
963 $(call print_var,sysconfdir)
964 $(call print_var,LIBUNWIND_DIR)
965 $(call print_var,LIBDW_DIR)
966 $(call print_var,JDIR)
968 ifeq ($(dwarf-post-unwind),1)
969 $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
974 $(call detected_var,bindir_SQ)
975 $(call detected_var,PYTHON_WORD)
977 $(call detected_var,OUTPUT)
979 $(call detected_var,htmldir_SQ)
980 $(call detected_var,infodir_SQ)
981 $(call detected_var,mandir_SQ)
982 $(call detected_var,ETC_PERFCONFIG_SQ)
983 $(call detected_var,STRACE_GROUPS_DIR_SQ)
984 $(call detected_var,prefix_SQ)
985 $(call detected_var,perfexecdir_SQ)
986 $(call detected_var,tipdir_SQ)
987 $(call detected_var,srcdir_SQ)
988 $(call detected_var,LIBDIR)
989 $(call detected_var,GTK_CFLAGS)
990 $(call detected_var,PERL_EMBED_CCOPTS)
991 $(call detected_var,PYTHON_EMBED_CCOPTS)