xref: /linux-6.15/tools/perf/Makefile.config (revision 055f0ce7)
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
31ifneq ($(NO_SYSCALL_TABLE),1)
32  NO_SYSCALL_TABLE := 1
33
34  ifeq ($(SRCARCH),$(filter $(SRCARCH),x86 powerpc arm64 s390 mips loongarch riscv))
35    NO_SYSCALL_TABLE := 0
36  endif
37
38  ifneq ($(NO_SYSCALL_TABLE),1)
39    CFLAGS += -DHAVE_SYSCALL_TABLE_SUPPORT
40  endif
41endif
42
43# Additional ARCH settings for ppc
44ifeq ($(SRCARCH),powerpc)
45  CFLAGS += -I$(OUTPUT)arch/powerpc/include/generated
46  ifndef NO_LIBUNWIND
47    LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
48  endif
49endif
50
51# Additional ARCH settings for x86
52ifeq ($(SRCARCH),x86)
53  $(call detected,CONFIG_X86)
54  CFLAGS += -I$(OUTPUT)arch/x86/include/generated
55  ifeq (${IS_64_BIT}, 1)
56    CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT
57    ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
58    ifndef NO_LIBUNWIND
59      LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma
60    endif
61    $(call detected,CONFIG_X86_64)
62  else
63    ifndef NO_LIBUNWIND
64      LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
65    endif
66  endif
67endif
68
69ifeq ($(SRCARCH),arm)
70  ifndef NO_LIBUNWIND
71    LIBUNWIND_LIBS = -lunwind -lunwind-arm
72  endif
73endif
74
75ifeq ($(SRCARCH),arm64)
76  CFLAGS += -I$(OUTPUT)arch/arm64/include/generated
77  ifndef NO_LIBUNWIND
78    LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
79  endif
80endif
81
82ifeq ($(SRCARCH),loongarch)
83  CFLAGS += -I$(OUTPUT)arch/loongarch/include/generated
84  ifndef NO_LIBUNWIND
85    LIBUNWIND_LIBS = -lunwind -lunwind-loongarch64
86  endif
87endif
88
89ifeq ($(ARCH),s390)
90  CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
91endif
92
93ifeq ($(ARCH),mips)
94  CFLAGS += -I$(OUTPUT)arch/mips/include/generated
95  ifndef NO_LIBUNWIND
96    LIBUNWIND_LIBS = -lunwind -lunwind-mips
97  endif
98endif
99
100ifeq ($(ARCH),riscv)
101  CFLAGS += -I$(OUTPUT)arch/riscv/include/generated
102endif
103
104# So far there's only x86 and arm libdw unwind support merged in perf.
105# Disable it on all other architectures in case libdw unwind
106# support is detected in system. Add supported architectures
107# to the check.
108ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky riscv loongarch))
109  NO_LIBDW_DWARF_UNWIND := 1
110endif
111
112ifneq ($(LIBUNWIND),1)
113  NO_LIBUNWIND := 1
114endif
115
116ifeq ($(LIBUNWIND_LIBS),)
117  NO_LIBUNWIND := 1
118endif
119#
120# For linking with debug library, run like:
121#
122#   make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
123#
124
125libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
126define libunwind_arch_set_flags_code
127  FEATURE_CHECK_CFLAGS-libunwind-$(1)  = -I$(LIBUNWIND_DIR)/include
128  FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
129endef
130
131ifdef LIBUNWIND_DIR
132  LIBUNWIND_CFLAGS  = -I$(LIBUNWIND_DIR)/include
133  LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
134  LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64 loongarch
135  $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
136endif
137
138ifndef NO_LIBUNWIND
139  # Set per-feature check compilation flags
140  FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
141  FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
142  FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
143  FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
144
145  FEATURE_CHECK_LDFLAGS-libunwind-arm += -lunwind -lunwind-arm
146  FEATURE_CHECK_LDFLAGS-libunwind-aarch64 += -lunwind -lunwind-aarch64
147  FEATURE_CHECK_LDFLAGS-libunwind-x86 += -lunwind -llzma -lunwind-x86
148  FEATURE_CHECK_LDFLAGS-libunwind-x86_64 += -lunwind -llzma -lunwind-x86_64
149endif
150
151FEATURE_CHECK_LDFLAGS-libcrypto = -lcrypto
152
153ifdef CSINCLUDES
154  LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
155endif
156OPENCSDLIBS := -lopencsd_c_api -lopencsd
157ifeq ($(findstring -static,${LDFLAGS}),-static)
158  OPENCSDLIBS += -lstdc++
159endif
160ifdef CSLIBS
161  LIBOPENCSD_LDFLAGS := -L$(CSLIBS)
162endif
163FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
164FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
165
166# for linking with debug library, run like:
167# make DEBUG=1 LIBDW_DIR=/opt/libdw/
168ifdef LIBDW_DIR
169  LIBDW_CFLAGS  := -I$(LIBDW_DIR)/include
170  LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
171endif
172DWARFLIBS := -ldw
173ifeq ($(findstring -static,${LDFLAGS}),-static)
174  DWARFLIBS += -lelf -lz -llzma -lbz2 -lzstd
175
176  LIBDW_VERSION := $(shell $(PKG_CONFIG) --modversion libdw).0.0
177  LIBDW_VERSION_1 := $(word 1, $(subst ., ,$(LIBDW_VERSION)))
178  LIBDW_VERSION_2 := $(word 2, $(subst ., ,$(LIBDW_VERSION)))
179
180  # Elfutils merged libebl.a into libdw.a starting from version 0.177,
181  # Link libebl.a only if libdw is older than this version.
182  ifeq ($(shell test $(LIBDW_VERSION_2) -lt 177; echo $$?),0)
183    DWARFLIBS += -lebl
184  endif
185
186  # Must put -ldl after -lebl for dependency
187  DWARFLIBS += -ldl
188endif
189FEATURE_CHECK_CFLAGS-libdw := $(LIBDW_CFLAGS)
190FEATURE_CHECK_LDFLAGS-libdw := $(LIBDW_LDFLAGS) $(DWARFLIBS)
191
192# for linking with debug library, run like:
193# make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
194ifdef LIBBABELTRACE_DIR
195  LIBBABELTRACE_CFLAGS  := -I$(LIBBABELTRACE_DIR)/include
196  LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
197endif
198FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
199FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
200
201# for linking with debug library, run like:
202# make DEBUG=1 LIBCAPSTONE_DIR=/opt/capstone/
203ifdef LIBCAPSTONE_DIR
204  LIBCAPSTONE_CFLAGS  := -I$(LIBCAPSTONE_DIR)/include
205  LIBCAPSTONE_LDFLAGS := -L$(LIBCAPSTONE_DIR)/
206endif
207FEATURE_CHECK_CFLAGS-libcapstone := $(LIBCAPSTONE_CFLAGS)
208FEATURE_CHECK_LDFLAGS-libcapstone := $(LIBCAPSTONE_LDFLAGS) -lcapstone
209
210ifdef LIBZSTD_DIR
211  LIBZSTD_CFLAGS  := -I$(LIBZSTD_DIR)/lib
212  LIBZSTD_LDFLAGS := -L$(LIBZSTD_DIR)/lib
213endif
214FEATURE_CHECK_CFLAGS-libzstd := $(LIBZSTD_CFLAGS)
215FEATURE_CHECK_LDFLAGS-libzstd := $(LIBZSTD_LDFLAGS)
216
217# for linking with debug library, run like:
218# make DEBUG=1 PKG_CONFIG_PATH=/opt/libtraceevent/(lib|lib64)/pkgconfig
219
220ifneq ($(NO_LIBTRACEEVENT),1)
221  ifeq ($(call get-executable,$(PKG_CONFIG)),)
222    $(error Error: $(PKG_CONFIG) needed by libtraceevent is missing on this system, please install it)
223  endif
224endif
225
226FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
227# include ARCH specific config
228-include $(src-perf)/arch/$(SRCARCH)/Makefile
229
230include $(srctree)/tools/scripts/utilities.mak
231
232ifeq ($(call get-executable,$(FLEX)),)
233  $(error Error: $(FLEX) is missing on this system, please install it)
234endif
235
236ifeq ($(call get-executable,$(BISON)),)
237  $(error Error: $(BISON) is missing on this system, please install it)
238endif
239
240ifneq ($(OUTPUT),)
241  ifeq ($(shell expr $(shell $(BISON) --version | grep bison | sed -e 's/.\+ \([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/\1\2\3/g') \>\= 371), 1)
242    BISON_FILE_PREFIX_MAP := --file-prefix-map=$(OUTPUT)=
243  endif
244endif
245
246# Treat warnings as errors unless directed not to
247ifneq ($(WERROR),0)
248  CORE_CFLAGS += -Werror
249  CXXFLAGS += -Werror
250  HOSTCFLAGS += -Werror
251endif
252
253ifndef DEBUG
254  DEBUG := 0
255endif
256
257ifeq ($(DEBUG),0)
258CORE_CFLAGS += -DNDEBUG=1
259CORE_CFLAGS += -O3
260else
261  CORE_CFLAGS += -g
262  CXXFLAGS += -g
263endif
264
265ifdef PARSER_DEBUG
266  PARSER_DEBUG_BISON := -t
267  PARSER_DEBUG_FLEX  := -d
268  CFLAGS             += -DPARSER_DEBUG
269  $(call detected_var,PARSER_DEBUG_BISON)
270  $(call detected_var,PARSER_DEBUG_FLEX)
271endif
272
273ifdef LTO
274  CORE_CFLAGS += -flto
275  CXXFLAGS += -flto
276endif
277
278# Try different combinations to accommodate systems that only have
279# python[2][3]-config in weird combinations in the following order of
280# priority from lowest to highest:
281#   * python2-config as per pep-0394.
282#   * python-config
283#   * python3-config
284#   * $(PYTHON)-config (If PYTHON is user supplied but PYTHON_CONFIG isn't)
285#
286PYTHON_AUTO := python-config
287PYTHON_AUTO := $(if $(call get-executable,python2-config),python2-config,$(PYTHON_AUTO))
288PYTHON_AUTO := $(if $(call get-executable,python-config),python-config,$(PYTHON_AUTO))
289PYTHON_AUTO := $(if $(call get-executable,python3-config),python3-config,$(PYTHON_AUTO))
290
291# If PYTHON is defined but PYTHON_CONFIG isn't, then take $(PYTHON)-config as if it was the user
292# supplied value for PYTHON_CONFIG. Because it's "user supplied", error out if it doesn't exist.
293ifdef PYTHON
294  ifndef PYTHON_CONFIG
295    PYTHON_CONFIG_AUTO := $(call get-executable,$(PYTHON)-config)
296    PYTHON_CONFIG := $(if $(PYTHON_CONFIG_AUTO),$(PYTHON_CONFIG_AUTO),\
297                          $(call $(error $(PYTHON)-config not found)))
298  endif
299endif
300
301# Select either auto detected python and python-config or use user supplied values if they are
302# defined. get-executable-or-default fails with an error if the first argument is supplied but
303# doesn't exist.
304override PYTHON_CONFIG := $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON_AUTO))
305override PYTHON := $(call get-executable-or-default,PYTHON,$(subst -config,,$(PYTHON_CONFIG)))
306
307grep-libs  = $(filter -l%,$(1))
308strip-libs  = $(filter-out -l%,$(1))
309
310PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
311
312# Python 3.8 changed the output of `python-config --ldflags` to not include the
313# '-lpythonX.Y' flag unless '--embed' is also passed. The feature check for
314# libpython fails if that flag is not included in LDFLAGS
315ifeq ($(shell $(PYTHON_CONFIG_SQ) --ldflags --embed 2>&1 1>/dev/null; echo $$?), 0)
316  PYTHON_CONFIG_LDFLAGS := --ldflags --embed
317else
318  PYTHON_CONFIG_LDFLAGS := --ldflags
319endif
320
321ifdef PYTHON_CONFIG
322  PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) $(PYTHON_CONFIG_LDFLAGS) 2>/dev/null)
323  # Update the python flags for cross compilation
324  ifdef CROSS_COMPILE
325    PYTHON_NATIVE := $(shell echo $(PYTHON_EMBED_LDOPTS) | sed 's/\(-L.*\/\)\(.*-linux-gnu\).*/\2/')
326    PYTHON_EMBED_LDOPTS := $(subst $(PYTHON_NATIVE),$(shell $(CC) -dumpmachine),$(PYTHON_EMBED_LDOPTS))
327  endif
328  PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
329  PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
330  PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null)
331  FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
332  ifeq ($(CC_NO_CLANG), 0)
333    PYTHON_EMBED_CCOPTS := $(filter-out -ffat-lto-objects, $(PYTHON_EMBED_CCOPTS))
334  endif
335endif
336
337FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
338FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
339
340FEATURE_CHECK_LDFLAGS-libaio = -lrt
341
342FEATURE_CHECK_LDFLAGS-disassembler-four-args = -lbfd -lopcodes -ldl
343FEATURE_CHECK_LDFLAGS-disassembler-init-styled = -lbfd -lopcodes -ldl
344
345CORE_CFLAGS += -fno-omit-frame-pointer
346CORE_CFLAGS += -Wall
347CORE_CFLAGS += -Wextra
348CORE_CFLAGS += -std=gnu11
349
350CXXFLAGS += -std=gnu++17 -fno-exceptions -fno-rtti
351CXXFLAGS += -Wall
352CXXFLAGS += -Wextra
353CXXFLAGS += -fno-omit-frame-pointer
354
355HOSTCFLAGS += -Wall
356HOSTCFLAGS += -Wextra
357
358# Enforce a non-executable stack, as we may regress (again) in the future by
359# adding assembler files missing the .GNU-stack linker note.
360LDFLAGS += -Wl,-z,noexecstack
361
362EXTLIBS = -lpthread -lrt -lm -ldl
363
364ifneq ($(TCMALLOC),)
365  CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free
366  EXTLIBS += -ltcmalloc
367endif
368
369ifeq ($(FEATURES_DUMP),)
370# We will display at the end of this Makefile.config, using $(call feature_display_entries)
371# As we may retry some feature detection here, see the disassembler-four-args case, for instance
372  FEATURE_DISPLAY_DEFERRED := 1
373include $(srctree)/tools/build/Makefile.feature
374else
375include $(FEATURES_DUMP)
376endif
377
378ifeq ($(feature-stackprotector-all), 1)
379  CORE_CFLAGS += -fstack-protector-all
380endif
381
382ifeq ($(DEBUG),0)
383  ifeq ($(feature-fortify-source), 1)
384    CORE_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
385  endif
386endif
387
388INC_FLAGS += -I$(src-perf)/util/include
389INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
390INC_FLAGS += -I$(srctree)/tools/include/
391INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
392INC_FLAGS += -I$(srctree)/tools/include/uapi
393INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
394INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
395
396# $(obj-perf)      for generated common-cmds.h
397# $(obj-perf)/util for generated bison/flex headers
398ifneq ($(OUTPUT),)
399INC_FLAGS += -I$(obj-perf)/util
400INC_FLAGS += -I$(obj-perf)
401endif
402
403INC_FLAGS += -I$(src-perf)/util
404INC_FLAGS += -I$(src-perf)
405
406CORE_CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
407
408CFLAGS   += $(CORE_CFLAGS) $(INC_FLAGS)
409CXXFLAGS += $(INC_FLAGS)
410
411LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS)
412
413ifeq ($(feature-pthread-attr-setaffinity-np), 1)
414  CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
415endif
416
417ifeq ($(feature-pthread-barrier), 1)
418  CFLAGS += -DHAVE_PTHREAD_BARRIER
419endif
420
421ifndef NO_BIONIC
422  $(call feature_check,bionic)
423  ifeq ($(feature-bionic), 1)
424    BIONIC := 1
425    CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE
426    CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE
427    EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
428    EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
429  endif
430endif
431
432ifeq ($(feature-eventfd), 1)
433  CFLAGS += -DHAVE_EVENTFD_SUPPORT
434endif
435
436ifeq ($(feature-get_current_dir_name), 1)
437  CFLAGS += -DHAVE_GET_CURRENT_DIR_NAME
438endif
439
440ifeq ($(feature-gettid), 1)
441  CFLAGS += -DHAVE_GETTID
442endif
443
444ifeq ($(feature-file-handle), 1)
445  CFLAGS += -DHAVE_FILE_HANDLE
446endif
447
448ifdef NO_LIBELF
449  NO_LIBDW := 1
450  NO_LIBUNWIND := 1
451  NO_LIBDW_DWARF_UNWIND := 1
452  NO_LIBBPF := 1
453  NO_JVMTI := 1
454else
455  ifeq ($(feature-libelf), 0)
456    ifeq ($(feature-glibc), 1)
457      LIBC_SUPPORT := 1
458    endif
459    ifeq ($(BIONIC),1)
460      LIBC_SUPPORT := 1
461    endif
462    ifeq ($(LIBC_SUPPORT),1)
463      $(error ERROR: No libelf found. Disables 'probe' tool, jvmti and BPF support. Please install libelf-dev, libelf-devel, elfutils-libelf-devel or build with NO_LIBELF=1.)
464    else
465      ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
466        ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
467          $(error No libasan found, please install libasan)
468        endif
469      endif
470
471      ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
472        ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
473          $(error No libubsan found, please install libubsan)
474        endif
475      endif
476
477      ifneq ($(filter s% -static%,$(LDFLAGS),),)
478        $(error No static glibc found, please install glibc-static)
479      else
480        $(error No gnu/libc-version.h found, please install glibc-dev[el])
481      endif
482    endif
483  else
484    ifneq ($(feature-libdw), 1)
485      ifndef NO_LIBDW
486        $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.157, disables dwarf support. Please install new elfutils-devel/libdw-dev)
487        NO_LIBDW := 1
488      endif
489    endif # Dwarf support
490  endif # libelf support
491endif # NO_LIBELF
492
493ifeq ($(feature-libaio), 1)
494  ifndef NO_AIO
495    CFLAGS += -DHAVE_AIO_SUPPORT
496  endif
497endif
498
499ifdef NO_LIBDW
500  NO_LIBDW_DWARF_UNWIND := 1
501endif
502
503ifeq ($(feature-scandirat), 1)
504  # Ignore having scandirat with memory sanitizer that lacks an interceptor.
505  ifeq ($(filter s% -fsanitize=memory%,$(EXTRA_CFLAGS),),)
506    CFLAGS += -DHAVE_SCANDIRAT_SUPPORT
507  endif
508endif
509
510ifeq ($(feature-sched_getcpu), 1)
511  CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
512endif
513
514ifeq ($(feature-setns), 1)
515  CFLAGS += -DHAVE_SETNS_SUPPORT
516  $(call detected,CONFIG_SETNS)
517endif
518
519ifdef CORESIGHT
520  $(call feature_check,libopencsd)
521  ifeq ($(feature-libopencsd), 1)
522    CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
523    ifeq ($(feature-reallocarray), 0)
524      CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
525    endif
526    LDFLAGS += $(LIBOPENCSD_LDFLAGS)
527    EXTLIBS += $(OPENCSDLIBS)
528    $(call detected,CONFIG_LIBOPENCSD)
529    ifdef CSTRACE_RAW
530      CFLAGS += -DCS_DEBUG_RAW
531      ifeq (${CSTRACE_RAW}, packed)
532        CFLAGS += -DCS_RAW_PACKED
533      endif
534    endif
535  else
536    $(error Error: No libopencsd library found or the version is not up-to-date. Please install recent libopencsd to build with CORESIGHT=1)
537  endif
538endif
539
540ifndef NO_ZLIB
541  ifeq ($(feature-zlib), 1)
542    CFLAGS += -DHAVE_ZLIB_SUPPORT
543    EXTLIBS += -lz
544    $(call detected,CONFIG_ZLIB)
545  else
546    NO_ZLIB := 1
547  endif
548endif
549
550ifndef NO_LIBELF
551  CFLAGS += -DHAVE_LIBELF_SUPPORT
552  EXTLIBS += -lelf
553  $(call detected,CONFIG_LIBELF)
554
555  ifeq ($(feature-libelf-getphdrnum), 1)
556    CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
557  endif
558
559  ifeq ($(feature-libelf-gelf_getnote), 1)
560    CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
561  else
562    $(warning gelf_getnote() not found on libelf, SDT support disabled)
563  endif
564
565  ifeq ($(feature-libelf-getshdrstrndx), 1)
566    CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
567  endif
568
569  ifndef NO_LIBDEBUGINFOD
570    $(call feature_check,libdebuginfod)
571    ifeq ($(feature-libdebuginfod), 1)
572      CFLAGS += -DHAVE_DEBUGINFOD_SUPPORT
573      EXTLIBS += -ldebuginfod
574    endif
575  endif
576
577  ifndef NO_LIBDW
578    CFLAGS += -DHAVE_LIBDW_SUPPORT $(LIBDW_CFLAGS)
579    LDFLAGS += $(LIBDW_LDFLAGS)
580    EXTLIBS += ${DWARFLIBS}
581    $(call detected,CONFIG_LIBDW)
582  endif # NO_LIBDW
583
584  ifndef NO_LIBBPF
585    ifeq ($(feature-bpf), 1)
586      # detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
587      $(call feature_check,libbpf)
588
589      ifdef LIBBPF_DYNAMIC
590        ifeq ($(feature-libbpf), 1)
591          EXTLIBS += -lbpf
592          CFLAGS += -DHAVE_LIBBPF_SUPPORT
593          $(call detected,CONFIG_LIBBPF)
594          $(call detected,CONFIG_LIBBPF_DYNAMIC)
595        else
596          $(error Error: No libbpf devel library found or older than v1.0, please install/update libbpf-devel)
597        endif
598      else
599        ifeq ($(NO_ZLIB), 1)
600          $(warning Warning: Statically building libbpf not possible as zlib is missing)
601          NO_LIBBPF := 1
602        else
603          # Libbpf will be built as a static library from tools/lib/bpf.
604          LIBBPF_STATIC := 1
605          $(call detected,CONFIG_LIBBPF)
606          CFLAGS += -DHAVE_LIBBPF_SUPPORT
607        endif
608      endif
609    endif
610  endif # NO_LIBBPF
611endif # NO_LIBELF
612
613ifndef NO_SDT
614  ifneq ($(feature-sdt), 1)
615    $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev)
616    NO_SDT := 1;
617  else
618    CFLAGS += -DHAVE_SDT_EVENT
619    $(call detected,CONFIG_SDT_EVENT)
620  endif
621endif
622
623ifdef PERF_HAVE_JITDUMP
624  ifndef NO_LIBELF
625    $(call detected,CONFIG_JITDUMP)
626    CFLAGS += -DHAVE_JITDUMP
627  endif
628endif
629
630ifeq ($(SRCARCH),powerpc)
631  ifndef NO_LIBDW
632    CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
633  endif
634endif
635
636ifndef NO_LIBUNWIND
637  have_libunwind :=
638
639  $(call feature_check,libunwind-x86)
640  ifeq ($(feature-libunwind-x86), 1)
641    $(call detected,CONFIG_LIBUNWIND_X86)
642    CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
643    LDFLAGS += -lunwind-x86
644    EXTLIBS_LIBUNWIND += -lunwind-x86
645    have_libunwind = 1
646  endif
647
648  $(call feature_check,libunwind-aarch64)
649  ifeq ($(feature-libunwind-aarch64), 1)
650    $(call detected,CONFIG_LIBUNWIND_AARCH64)
651    CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
652    LDFLAGS += -lunwind-aarch64
653    EXTLIBS_LIBUNWIND += -lunwind-aarch64
654    have_libunwind = 1
655    $(call feature_check,libunwind-debug-frame-aarch64)
656    ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
657      $(warning No debug_frame support found in libunwind-aarch64)
658      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
659    endif
660  endif
661
662  ifneq ($(feature-libunwind), 1)
663    $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR)
664    NO_LOCAL_LIBUNWIND := 1
665  else
666    have_libunwind := 1
667    $(call detected,CONFIG_LOCAL_LIBUNWIND)
668  endif
669
670  ifneq ($(have_libunwind), 1)
671    NO_LIBUNWIND := 1
672  endif
673else
674  NO_LOCAL_LIBUNWIND := 1
675endif
676
677ifndef NO_LIBBPF
678  ifneq ($(feature-bpf), 1)
679    $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
680    NO_LIBBPF := 1
681  endif
682endif
683
684ifndef BUILD_BPF_SKEL
685  # BPF skeletons control a large number of perf features, by default
686  # they are enabled.
687  BUILD_BPF_SKEL := 1
688endif
689
690ifeq ($(BUILD_BPF_SKEL),1)
691  ifeq ($(filter -DHAVE_LIBELF_SUPPORT, $(CFLAGS)),)
692    $(warning Warning: Disabled BPF skeletons as libelf is required by bpftool)
693    BUILD_BPF_SKEL := 0
694  else ifeq ($(filter -DHAVE_ZLIB_SUPPORT, $(CFLAGS)),)
695    $(warning Warning: Disabled BPF skeletons as zlib is required by bpftool)
696    BUILD_BPF_SKEL := 0
697  else ifeq ($(filter -DHAVE_LIBBPF_SUPPORT, $(CFLAGS)),)
698    $(warning Warning: Disabled BPF skeletons as libbpf is required)
699    BUILD_BPF_SKEL := 0
700  else ifeq ($(call get-executable,$(CLANG)),)
701    $(warning Warning: Disabled BPF skeletons as clang ($(CLANG)) is missing)
702    BUILD_BPF_SKEL := 0
703  else
704    CLANG_VERSION := $(shell $(CLANG) --version | head -1 | sed 's/.*clang version \([[:digit:]]\+.[[:digit:]]\+.[[:digit:]]\+\).*/\1/g')
705    ifeq ($(call version-lt3,$(CLANG_VERSION),12.0.1),1)
706      $(warning Warning: Disabled BPF skeletons as reliable BTF generation needs at least $(CLANG) version 12.0.1)
707      BUILD_BPF_SKEL := 0
708    endif
709  endif
710  ifeq ($(BUILD_BPF_SKEL),1)
711    $(call feature_check,clang-bpf-co-re)
712    ifeq ($(feature-clang-bpf-co-re), 0)
713      $(warning Warning: Disabled BPF skeletons as clang is too old)
714      BUILD_BPF_SKEL := 0
715    endif
716  endif
717  ifeq ($(BUILD_BPF_SKEL),1)
718    $(call detected,CONFIG_PERF_BPF_SKEL)
719    CFLAGS += -DHAVE_BPF_SKEL
720  endif
721endif
722
723ifndef GEN_VMLINUX_H
724  VMLINUX_H=$(src-perf)/util/bpf_skel/vmlinux/vmlinux.h
725endif
726
727dwarf-post-unwind := 1
728dwarf-post-unwind-text := BUG
729
730# setup DWARF post unwinder
731ifdef NO_LIBUNWIND
732  ifdef NO_LIBDW_DWARF_UNWIND
733    $(warning Disabling post unwind, no support found.)
734    dwarf-post-unwind := 0
735  else
736    dwarf-post-unwind-text := libdw
737    $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
738  endif
739else
740  dwarf-post-unwind-text := libunwind
741  $(call detected,CONFIG_LIBUNWIND)
742  # Enable libunwind support by default.
743  ifndef NO_LIBDW_DWARF_UNWIND
744    NO_LIBDW_DWARF_UNWIND := 1
745  endif
746endif
747
748ifeq ($(dwarf-post-unwind),1)
749  CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
750  $(call detected,CONFIG_DWARF_UNWIND)
751endif
752
753ifndef NO_LIBUNWIND
754  ifndef NO_LOCAL_LIBUNWIND
755    ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
756      $(call feature_check,libunwind-debug-frame)
757      ifneq ($(feature-libunwind-debug-frame), 1)
758        $(warning No debug_frame support found in libunwind)
759        CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
760      endif
761    else
762      # non-ARM has no dwarf_find_debug_frame() function:
763      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
764    endif
765    EXTLIBS += $(LIBUNWIND_LIBS)
766    LDFLAGS += $(LIBUNWIND_LIBS)
767  endif
768  ifeq ($(findstring -static,${LDFLAGS}),-static)
769    # gcc -static links libgcc_eh which contans piece of libunwind
770    LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
771  endif
772  CFLAGS  += -DHAVE_LIBUNWIND_SUPPORT
773  CFLAGS  += $(LIBUNWIND_CFLAGS)
774  LDFLAGS += $(LIBUNWIND_LDFLAGS)
775  EXTLIBS += $(EXTLIBS_LIBUNWIND)
776endif
777
778ifneq ($(NO_LIBTRACEEVENT),1)
779  ifeq ($(NO_SYSCALL_TABLE),0)
780    $(call detected,CONFIG_TRACE)
781  else
782    ifndef NO_LIBAUDIT
783      $(call feature_check,libaudit)
784      ifneq ($(feature-libaudit), 1)
785        $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev)
786        NO_LIBAUDIT := 1
787      else
788        CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
789        EXTLIBS += -laudit
790        $(call detected,CONFIG_TRACE)
791      endif
792    endif
793  endif
794endif
795
796ifndef NO_LIBCRYPTO
797  ifneq ($(feature-libcrypto), 1)
798    $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev)
799    NO_LIBCRYPTO := 1
800  else
801    CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
802    EXTLIBS += -lcrypto
803    $(call detected,CONFIG_CRYPTO)
804  endif
805endif
806
807ifndef NO_SLANG
808  ifneq ($(feature-libslang), 1)
809    ifneq ($(feature-libslang-include-subdir), 1)
810      $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev)
811      NO_SLANG := 1
812    else
813      CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
814    endif
815  endif
816  ifndef NO_SLANG
817    # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
818    CFLAGS += -DHAVE_SLANG_SUPPORT
819    EXTLIBS += -lslang
820    $(call detected,CONFIG_SLANG)
821  endif
822endif
823
824ifdef GTK2
825  FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
826  $(call feature_check,gtk2)
827  ifneq ($(feature-gtk2), 1)
828    $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev)
829    NO_GTK2 := 1
830  else
831    $(call feature_check,gtk2-infobar)
832    ifeq ($(feature-gtk2-infobar), 1)
833      GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
834    endif
835    CFLAGS += -DHAVE_GTK2_SUPPORT
836    GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
837    GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
838    EXTLIBS += -ldl
839  endif
840endif
841
842ifdef NO_LIBPERL
843  CFLAGS += -DNO_LIBPERL
844else
845  PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
846  PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
847  PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
848  PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
849  PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
850  PERL_EMBED_CCOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
851  PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
852  FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
853
854  ifneq ($(feature-libperl), 1)
855    CFLAGS += -DNO_LIBPERL
856    NO_LIBPERL := 1
857    $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev)
858  else
859    LDFLAGS += $(PERL_EMBED_LDFLAGS)
860    EXTLIBS += $(PERL_EMBED_LIBADD)
861    CFLAGS += -DHAVE_LIBPERL_SUPPORT
862    ifeq ($(CC_NO_CLANG), 0)
863      CFLAGS += -Wno-compound-token-split-by-macro
864    endif
865    $(call detected,CONFIG_LIBPERL)
866  endif
867endif
868
869ifeq ($(feature-timerfd), 1)
870  CFLAGS += -DHAVE_TIMERFD_SUPPORT
871else
872  $(warning No timerfd support. Disables 'perf kvm stat live')
873endif
874
875disable-python = $(eval $(disable-python_code))
876define disable-python_code
877  CFLAGS += -DNO_LIBPYTHON
878  $(warning $1)
879  NO_LIBPYTHON := 1
880endef
881
882PYTHON_EXTENSION_SUFFIX := '.so'
883ifdef NO_LIBPYTHON
884  $(call disable-python,Python support disabled by user)
885else
886
887  ifndef PYTHON
888    $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
889  else
890    PYTHON_WORD := $(call shell-wordify,$(PYTHON))
891
892    ifndef PYTHON_CONFIG
893      $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
894    else
895
896      ifneq ($(feature-libpython), 1)
897        $(call disable-python,No 'Python.h' was found: disables Python support - please install python-devel/python-dev)
898      else
899         LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
900         EXTLIBS += $(PYTHON_EMBED_LIBADD)
901         PYTHON_SETUPTOOLS_INSTALLED := $(shell $(PYTHON) -c 'import setuptools;' 2> /dev/null && echo "yes" || echo "no")
902         ifeq ($(PYTHON_SETUPTOOLS_INSTALLED), yes)
903           PYTHON_EXTENSION_SUFFIX := $(shell $(PYTHON) -c 'from importlib import machinery; print(machinery.EXTENSION_SUFFIXES[0])')
904           ifdef CROSS_COMPILE
905             PYTHON_EXTENSION_SUFFIX := $(subst $(PYTHON_NATIVE),$(shell $(CC) -dumpmachine),$(PYTHON_EXTENSION_SUFFIX))
906           endif
907           LANG_BINDINGS += $(obj-perf)python/perf$(PYTHON_EXTENSION_SUFFIX)
908	 else
909           $(warning Missing python setuptools, the python binding won't be built, please install python3-setuptools or equivalent)
910         endif
911         CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
912         $(call detected,CONFIG_LIBPYTHON)
913         ifeq ($(filter -fPIC,$(CFLAGS)),)
914           # Building a shared library requires position independent code.
915           CFLAGS += -fPIC
916           CXXFLAGS += -fPIC
917         endif
918      endif
919    endif
920  endif
921endif
922
923ifneq ($(NO_JEVENTS),1)
924  ifeq ($(wildcard pmu-events/arch/$(SRCARCH)/mapfile.csv),)
925    NO_JEVENTS := 1
926  endif
927endif
928ifneq ($(NO_JEVENTS),1)
929  NO_JEVENTS := 0
930  ifndef PYTHON
931    $(error ERROR: No python interpreter needed for jevents generation. Install python or build with NO_JEVENTS=1.)
932  else
933    # jevents.py uses f-strings present in Python 3.6 released in Dec. 2016.
934    JEVENTS_PYTHON_GOOD := $(shell $(PYTHON) -c 'import sys;print("1" if(sys.version_info.major >= 3 and sys.version_info.minor >= 6) else "0")' 2> /dev/null)
935    ifneq ($(JEVENTS_PYTHON_GOOD), 1)
936      $(error ERROR: Python interpreter needed for jevents generation too old (older than 3.6). Install a newer python or build with NO_JEVENTS=1.)
937    endif
938  endif
939endif
940
941ifdef BUILD_NONDISTRO
942  ifeq ($(feature-libbfd), 1)
943    EXTLIBS += -lbfd -lopcodes
944  else
945    # we are on a system that requires -liberty and (maybe) -lz
946    # to link against -lbfd; test each case individually here
947
948    # call all detections now so we get correct
949    # status in VF output
950    $(call feature_check,libbfd-liberty)
951    $(call feature_check,libbfd-liberty-z)
952
953    ifeq ($(feature-libbfd-liberty), 1)
954      EXTLIBS += -lbfd -lopcodes -liberty
955      FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl
956      FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -ldl
957    else
958      ifeq ($(feature-libbfd-liberty-z), 1)
959        EXTLIBS += -lbfd -lopcodes -liberty -lz
960        FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl
961        FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -lz -ldl
962      endif
963    endif
964    $(call feature_check,disassembler-four-args)
965    $(call feature_check,disassembler-init-styled)
966  endif
967
968  CFLAGS += -DHAVE_LIBBFD_SUPPORT
969  CXXFLAGS += -DHAVE_LIBBFD_SUPPORT
970  ifeq ($(feature-libbfd-buildid), 1)
971    CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
972  else
973    $(warning Old version of libbfd/binutils things like PE executable profiling will not be available)
974  endif
975endif
976
977ifndef NO_LIBLLVM
978  $(call feature_check,llvm-perf)
979  ifeq ($(feature-llvm-perf), 1)
980    CFLAGS += -DHAVE_LIBLLVM_SUPPORT
981    CFLAGS += $(shell $(LLVM_CONFIG) --cflags)
982    CXXFLAGS += -DHAVE_LIBLLVM_SUPPORT
983    CXXFLAGS += $(shell $(LLVM_CONFIG) --cxxflags)
984    LIBLLVM = $(shell $(LLVM_CONFIG) --libs all) $(shell $(LLVM_CONFIG) --system-libs)
985    EXTLIBS += -L$(shell $(LLVM_CONFIG) --libdir) $(LIBLLVM)
986    EXTLIBS += -lstdc++
987    $(call detected,CONFIG_LIBLLVM)
988  else
989    $(warning No libllvm 13+ found, slower source file resolution, please install llvm-devel/llvm-dev)
990    NO_LIBLLVM := 1
991  endif
992endif
993
994ifndef NO_DEMANGLE
995  $(call feature_check,cxa-demangle)
996  ifeq ($(feature-cxa-demangle), 1)
997    EXTLIBS += -lstdc++
998    CFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT
999    CXXFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT
1000    $(call detected,CONFIG_CXX_DEMANGLE)
1001  endif
1002  ifdef BUILD_NONDISTRO
1003    ifeq ($(filter -liberty,$(EXTLIBS)),)
1004      $(call feature_check,cplus-demangle)
1005      ifeq ($(feature-cplus-demangle), 1)
1006        EXTLIBS += -liberty
1007      endif
1008    endif
1009    ifneq ($(filter -liberty,$(EXTLIBS)),)
1010      CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
1011      CXXFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
1012    endif
1013  endif
1014endif
1015
1016ifndef NO_LZMA
1017  ifeq ($(feature-lzma), 1)
1018    CFLAGS += -DHAVE_LZMA_SUPPORT
1019    EXTLIBS += -llzma
1020    $(call detected,CONFIG_LZMA)
1021  else
1022    $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev)
1023    NO_LZMA := 1
1024  endif
1025endif
1026
1027ifndef NO_LIBZSTD
1028  ifeq ($(feature-libzstd), 1)
1029    CFLAGS += -DHAVE_ZSTD_SUPPORT
1030    CFLAGS += $(LIBZSTD_CFLAGS)
1031    LDFLAGS += $(LIBZSTD_LDFLAGS)
1032    EXTLIBS += -lzstd
1033    $(call detected,CONFIG_ZSTD)
1034  else
1035    $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR)
1036    NO_LIBZSTD := 1
1037  endif
1038endif
1039
1040ifndef NO_BACKTRACE
1041  ifeq ($(feature-backtrace), 1)
1042    CFLAGS += -DHAVE_BACKTRACE_SUPPORT
1043  endif
1044endif
1045
1046ifndef NO_LIBNUMA
1047  ifeq ($(feature-libnuma), 0)
1048    $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev)
1049    NO_LIBNUMA := 1
1050  else
1051    ifeq ($(feature-numa_num_possible_cpus), 0)
1052      $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8)
1053      NO_LIBNUMA := 1
1054    else
1055      CFLAGS += -DHAVE_LIBNUMA_SUPPORT
1056      EXTLIBS += -lnuma
1057      $(call detected,CONFIG_NUMA)
1058    endif
1059  endif
1060endif
1061
1062ifdef HAVE_KVM_STAT_SUPPORT
1063    CFLAGS += -DHAVE_KVM_STAT_SUPPORT
1064endif
1065
1066ifeq ($(feature-disassembler-four-args), 1)
1067    CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
1068endif
1069
1070ifeq ($(feature-disassembler-init-styled), 1)
1071    CFLAGS += -DDISASM_INIT_STYLED
1072endif
1073
1074ifeq (${IS_64_BIT}, 1)
1075  ifndef NO_PERF_READ_VDSO32
1076    $(call feature_check,compile-32)
1077    ifeq ($(feature-compile-32), 1)
1078      CFLAGS += -DHAVE_PERF_READ_VDSO32
1079    else
1080      NO_PERF_READ_VDSO32 := 1
1081    endif
1082  endif
1083  ifneq ($(SRCARCH), x86)
1084    NO_PERF_READ_VDSOX32 := 1
1085  endif
1086  ifndef NO_PERF_READ_VDSOX32
1087    $(call feature_check,compile-x32)
1088    ifeq ($(feature-compile-x32), 1)
1089      CFLAGS += -DHAVE_PERF_READ_VDSOX32
1090    else
1091      NO_PERF_READ_VDSOX32 := 1
1092    endif
1093  endif
1094else
1095  NO_PERF_READ_VDSO32 := 1
1096  NO_PERF_READ_VDSOX32 := 1
1097endif
1098
1099ifndef NO_LIBBABELTRACE
1100  $(call feature_check,libbabeltrace)
1101  ifeq ($(feature-libbabeltrace), 1)
1102    CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
1103    LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
1104    EXTLIBS += -lbabeltrace-ctf
1105    $(call detected,CONFIG_LIBBABELTRACE)
1106  else
1107    $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev)
1108  endif
1109endif
1110
1111ifndef NO_CAPSTONE
1112  $(call feature_check,libcapstone)
1113  ifeq ($(feature-libcapstone), 1)
1114    CFLAGS += -DHAVE_LIBCAPSTONE_SUPPORT $(LIBCAPSTONE_CFLAGS)
1115    LDFLAGS += $(LICAPSTONE_LDFLAGS)
1116    EXTLIBS += -lcapstone
1117    $(call detected,CONFIG_LIBCAPSTONE)
1118  else
1119    msg := $(warning No libcapstone found, disables disasm engine support for 'perf script', please install libcapstone-dev/capstone-devel);
1120  endif
1121endif
1122
1123ifndef NO_AUXTRACE
1124  ifeq ($(SRCARCH),x86)
1125    ifeq ($(feature-get_cpuid), 0)
1126      $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc)
1127      NO_AUXTRACE := 1
1128    endif
1129  endif
1130  ifndef NO_AUXTRACE
1131    $(call detected,CONFIG_AUXTRACE)
1132    CFLAGS += -DHAVE_AUXTRACE_SUPPORT
1133    ifeq ($(feature-reallocarray), 0)
1134      CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
1135    endif
1136  endif
1137endif
1138
1139ifdef EXTRA_TESTS
1140    $(call detected,CONFIG_EXTRA_TESTS)
1141    CFLAGS += -DHAVE_EXTRA_TESTS
1142endif
1143
1144ifndef NO_JVMTI
1145  ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
1146    JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
1147  else
1148    ifneq (,$(wildcard /usr/sbin/alternatives))
1149      JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
1150    endif
1151  endif
1152  ifndef JDIR
1153    $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
1154    NO_JVMTI := 1
1155  endif
1156endif
1157
1158ifndef NO_JVMTI
1159  FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
1160  $(call feature_check,jvmti)
1161  ifeq ($(feature-jvmti), 1)
1162    $(call detected_var,JDIR)
1163    ifndef NO_JVMTI_CMLR
1164      FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
1165      $(call feature_check,jvmti-cmlr)
1166      ifeq ($(feature-jvmti-cmlr), 1)
1167        CFLAGS += -DHAVE_JVMTI_CMLR
1168      endif
1169    endif # NO_JVMTI_CMLR
1170  else
1171    $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
1172    NO_JVMTI := 1
1173  endif
1174endif
1175
1176ifndef NO_LIBPFM4
1177  $(call feature_check,libpfm4)
1178  ifeq ($(feature-libpfm4), 1)
1179    CFLAGS += -DHAVE_LIBPFM
1180    EXTLIBS += -lpfm
1181    ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
1182    $(call detected,CONFIG_LIBPFM4)
1183  else
1184    $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev)
1185  endif
1186endif
1187
1188# libtraceevent is a recommended dependency picked up from the system.
1189ifneq ($(NO_LIBTRACEEVENT),1)
1190  ifeq ($(feature-libtraceevent), 1)
1191    CFLAGS += -DHAVE_LIBTRACEEVENT $(shell $(PKG_CONFIG) --cflags libtraceevent)
1192    LDFLAGS += $(shell $(PKG_CONFIG) --libs-only-L libtraceevent)
1193    EXTLIBS += $(shell $(PKG_CONFIG) --libs-only-l libtraceevent)
1194    LIBTRACEEVENT_VERSION := $(shell $(PKG_CONFIG) --modversion libtraceevent).0.0
1195    LIBTRACEEVENT_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1196    LIBTRACEEVENT_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1197    LIBTRACEEVENT_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1198    LIBTRACEEVENT_VERSION_CPP := $(shell expr $(LIBTRACEEVENT_VERSION_1) \* 255 \* 255 + $(LIBTRACEEVENT_VERSION_2) \* 255 + $(LIBTRACEEVENT_VERSION_3))
1199    CFLAGS += -DLIBTRACEEVENT_VERSION=$(LIBTRACEEVENT_VERSION_CPP)
1200    $(call detected,CONFIG_LIBTRACEEVENT)
1201  else
1202    $(error ERROR: libtraceevent is missing. Please install libtraceevent-dev/libtraceevent-devel and/or set LIBTRACEEVENT_DIR or build with NO_LIBTRACEEVENT=1)
1203  endif
1204
1205  ifeq ($(feature-libtracefs), 1)
1206    CFLAGS +=  $(shell $(PKG_CONFIG) --cflags libtracefs)
1207    LDFLAGS += $(shell $(PKG_CONFIG) --libs-only-L libtracefs)
1208    EXTLIBS += $(shell $(PKG_CONFIG) --libs-only-l libtracefs)
1209    LIBTRACEFS_VERSION := $(shell $(PKG_CONFIG) --modversion libtracefs).0.0
1210    LIBTRACEFS_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEFS_VERSION)))
1211    LIBTRACEFS_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEFS_VERSION)))
1212    LIBTRACEFS_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEFS_VERSION)))
1213    LIBTRACEFS_VERSION_CPP := $(shell expr $(LIBTRACEFS_VERSION_1) \* 255 \* 255 + $(LIBTRACEFS_VERSION_2) \* 255 + $(LIBTRACEFS_VERSION_3))
1214    CFLAGS += -DLIBTRACEFS_VERSION=$(LIBTRACEFS_VERSION_CPP)
1215  else
1216    $(warning libtracefs is missing. Please install libtracefs-dev/libtracefs-devel)
1217  endif
1218endif
1219
1220# Among the variables below, these:
1221#   perfexecdir
1222#   libbpf_include_dir
1223#   perf_examples_dir
1224#   template_dir
1225#   mandir
1226#   infodir
1227#   htmldir
1228#   ETC_PERFCONFIG (but not sysconfdir)
1229# can be specified as a relative path some/where/else;
1230# this is interpreted as relative to $(prefix) and "perf" at
1231# runtime figures out where they are based on the path to the executable.
1232# This can help installing the suite in a relocatable way.
1233
1234# Make the path relative to DESTDIR, not to prefix
1235ifndef DESTDIR
1236prefix ?= $(HOME)
1237endif
1238bindir_relative = bin
1239bindir = $(abspath $(prefix)/$(bindir_relative))
1240includedir_relative = include
1241includedir = $(abspath $(prefix)/$(includedir_relative))
1242mandir = share/man
1243infodir = share/info
1244perfexecdir = libexec/perf-core
1245# FIXME: system's libbpf header directory, where we expect to find bpf/bpf_helpers.h, for instance
1246libbpf_include_dir = /usr/include
1247perf_examples_dir = lib/perf/examples
1248sharedir = $(prefix)/share
1249template_dir = share/perf-core/templates
1250STRACE_GROUPS_DIR = share/perf-core/strace/groups
1251htmldir = share/doc/perf-doc
1252tipdir = share/doc/perf-tip
1253srcdir = $(srctree)/tools/perf
1254ifeq ($(prefix),/usr)
1255sysconfdir = /etc
1256ETC_PERFCONFIG = $(sysconfdir)/perfconfig
1257else
1258sysconfdir = $(prefix)/etc
1259ETC_PERFCONFIG = etc/perfconfig
1260endif
1261ifndef lib
1262ifeq ($(SRCARCH)$(IS_64_BIT), x861)
1263lib = lib64
1264else
1265lib = lib
1266endif
1267endif # lib
1268libdir = $(prefix)/$(lib)
1269
1270# Shell quote (do not use $(call) to accommodate ancient setups);
1271ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
1272STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
1273DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
1274bindir_SQ = $(subst ','\'',$(bindir))
1275includedir_SQ = $(subst ','\'',$(includedir))
1276mandir_SQ = $(subst ','\'',$(mandir))
1277infodir_SQ = $(subst ','\'',$(infodir))
1278perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
1279libbpf_include_dir_SQ = $(subst ','\'',$(libbpf_include_dir))
1280perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
1281template_dir_SQ = $(subst ','\'',$(template_dir))
1282htmldir_SQ = $(subst ','\'',$(htmldir))
1283tipdir_SQ = $(subst ','\'',$(tipdir))
1284prefix_SQ = $(subst ','\'',$(prefix))
1285sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
1286libdir_SQ = $(subst ','\'',$(libdir))
1287srcdir_SQ = $(subst ','\'',$(srcdir))
1288
1289ifneq ($(filter /%,$(firstword $(perfexecdir))),)
1290perfexec_instdir = $(perfexecdir)
1291perf_include_instdir = $(libbpf_include_dir)
1292perf_examples_instdir = $(perf_examples_dir)
1293STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
1294tip_instdir = $(tipdir)
1295else
1296perfexec_instdir = $(prefix)/$(perfexecdir)
1297perf_include_instdir = $(prefix)/$(libbpf_include_dir)
1298perf_examples_instdir = $(prefix)/$(perf_examples_dir)
1299STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
1300tip_instdir = $(prefix)/$(tipdir)
1301endif
1302perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
1303perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
1304perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
1305STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
1306tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
1307
1308export perfexec_instdir_SQ
1309
1310print_var = $(eval $(print_var_code)) $(info $(MSG))
1311define print_var_code
1312    MSG = $(shell printf '...%40s: %s' $(1) $($(1)))
1313endef
1314
1315ifeq ($(feature_display),1)
1316  $(call feature_display_entries)
1317endif
1318
1319ifeq ($(VF),1)
1320  # Display EXTRA features which are detected manualy
1321  # from here with feature_check call and thus cannot
1322  # be partof global state output.
1323  $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),) $(info $(MSG)))
1324  $(call print_var,prefix)
1325  $(call print_var,bindir)
1326  $(call print_var,libdir)
1327  $(call print_var,sysconfdir)
1328  $(call print_var,LIBUNWIND_DIR)
1329  $(call print_var,LIBDW_DIR)
1330  $(call print_var,JDIR)
1331
1332  ifeq ($(dwarf-post-unwind),1)
1333    $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text)) $(info $(MSG))
1334  endif
1335endif
1336
1337$(info )
1338
1339$(call detected_var,bindir_SQ)
1340$(call detected_var,PYTHON_WORD)
1341ifneq ($(OUTPUT),)
1342$(call detected_var,OUTPUT)
1343endif
1344$(call detected_var,htmldir_SQ)
1345$(call detected_var,infodir_SQ)
1346$(call detected_var,mandir_SQ)
1347$(call detected_var,ETC_PERFCONFIG_SQ)
1348$(call detected_var,STRACE_GROUPS_DIR_SQ)
1349$(call detected_var,prefix_SQ)
1350$(call detected_var,perfexecdir_SQ)
1351$(call detected_var,libbpf_include_dir_SQ)
1352$(call detected_var,perf_examples_dir_SQ)
1353$(call detected_var,tipdir_SQ)
1354$(call detected_var,srcdir_SQ)
1355$(call detected_var,LIBDIR)
1356$(call detected_var,GTK_CFLAGS)
1357$(call detected_var,PERL_EMBED_CCOPTS)
1358$(call detected_var,PYTHON_EMBED_CCOPTS)
1359ifneq ($(BISON_FILE_PREFIX_MAP),)
1360$(call detected_var,BISON_FILE_PREFIX_MAP)
1361endif
1362
1363# re-generate FEATURE-DUMP as we may have called feature_check, found out
1364# extra libraries to add to LDFLAGS of some other test and then redo those
1365# tests, see the block about libbfd, disassembler-four-args, for instance.
1366$(shell rm -f $(FEATURE_DUMP_FILENAME))
1367$(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))
1368