xref: /openbmc/linux/tools/perf/Makefile.config (revision 8fcaea9f) 
1# SPDX-License-Identifier: GPL-2.0-only
2
3ifeq ($(src-perf),)
4src-perf := $(srctree)/tools/perf
5endif
6
7ifeq ($(obj-perf),)
8obj-perf := $(OUTPUT)
9endif
10
11ifneq ($(obj-perf),)
12obj-perf := $(abspath $(obj-perf))/
13endif
14
15$(shell printf "" > $(OUTPUT).config-detected)
16detected     = $(shell echo "$(1)=y"       >> $(OUTPUT).config-detected)
17detected_var = $(shell echo "$(1)=$($(1))" >> $(OUTPUT).config-detected)
18
19CFLAGS := $(EXTRA_CFLAGS) $(filter-out -Wnested-externs,$(EXTRA_WARNINGS))
20HOSTCFLAGS := $(filter-out -Wnested-externs,$(EXTRA_WARNINGS))
21
22# Enabled Wthread-safety analysis for clang builds.
23ifeq ($(CC_NO_CLANG), 0)
24  CFLAGS += -Wthread-safety
25endif
26
27include $(srctree)/tools/scripts/Makefile.arch
28
29$(call detected_var,SRCARCH)
30
31NO_PERF_REGS := 1
32
33ifneq ($(NO_SYSCALL_TABLE),1)
34  NO_SYSCALL_TABLE := 1
35
36  ifeq ($(SRCARCH),x86)
37    ifeq (${IS_64_BIT}, 1)
38      NO_SYSCALL_TABLE := 0
39    endif
40  else
41    ifeq ($(SRCARCH),$(filter $(SRCARCH),powerpc arm64 s390 mips loongarch))
42      NO_SYSCALL_TABLE := 0
43    endif
44  endif
45
46  ifneq ($(NO_SYSCALL_TABLE),1)
47    CFLAGS += -DHAVE_SYSCALL_TABLE_SUPPORT
48  endif
49endif
50
51# Additional ARCH settings for ppc
52ifeq ($(SRCARCH),powerpc)
53  NO_PERF_REGS := 0
54  CFLAGS += -I$(OUTPUT)arch/powerpc/include/generated
55  LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
56endif
57
58# Additional ARCH settings for x86
59ifeq ($(SRCARCH),x86)
60  $(call detected,CONFIG_X86)
61  ifeq (${IS_64_BIT}, 1)
62    CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT -I$(OUTPUT)arch/x86/include/generated
63    ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
64    LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma
65    $(call detected,CONFIG_X86_64)
66  else
67    LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
68  endif
69  NO_PERF_REGS := 0
70endif
71
72ifeq ($(SRCARCH),arm)
73  NO_PERF_REGS := 0
74  LIBUNWIND_LIBS = -lunwind -lunwind-arm
75endif
76
77ifeq ($(SRCARCH),arm64)
78  NO_PERF_REGS := 0
79  CFLAGS += -I$(OUTPUT)arch/arm64/include/generated
80  LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
81endif
82
83ifeq ($(SRCARCH),loongarch)
84  NO_PERF_REGS := 0
85  CFLAGS += -I$(OUTPUT)arch/loongarch/include/generated
86  LIBUNWIND_LIBS = -lunwind -lunwind-loongarch64
87endif
88
89ifeq ($(SRCARCH),riscv)
90  NO_PERF_REGS := 0
91endif
92
93ifeq ($(SRCARCH),csky)
94  NO_PERF_REGS := 0
95endif
96
97ifeq ($(ARCH),s390)
98  NO_PERF_REGS := 0
99  CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
100endif
101
102ifeq ($(ARCH),mips)
103  NO_PERF_REGS := 0
104  CFLAGS += -I$(OUTPUT)arch/mips/include/generated
105  LIBUNWIND_LIBS = -lunwind -lunwind-mips
106endif
107
108ifeq ($(NO_PERF_REGS),0)
109  $(call detected,CONFIG_PERF_REGS)
110endif
111
112# So far there's only x86 and arm libdw unwind support merged in perf.
113# Disable it on all other architectures in case libdw unwind
114# support is detected in system. Add supported architectures
115# to the check.
116ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky riscv loongarch))
117  NO_LIBDW_DWARF_UNWIND := 1
118endif
119
120ifeq ($(LIBUNWIND_LIBS),)
121  NO_LIBUNWIND := 1
122endif
123#
124# For linking with debug library, run like:
125#
126#   make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
127#
128
129libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
130define libunwind_arch_set_flags_code
131  FEATURE_CHECK_CFLAGS-libunwind-$(1)  = -I$(LIBUNWIND_DIR)/include
132  FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
133endef
134
135ifdef LIBUNWIND_DIR
136  LIBUNWIND_CFLAGS  = -I$(LIBUNWIND_DIR)/include
137  LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
138  LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64 loongarch
139  $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
140endif
141
142# Set per-feature check compilation flags
143FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
144FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
145FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
146FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
147
148FEATURE_CHECK_LDFLAGS-libunwind-arm += -lunwind -lunwind-arm
149FEATURE_CHECK_LDFLAGS-libunwind-aarch64 += -lunwind -lunwind-aarch64
150FEATURE_CHECK_LDFLAGS-libunwind-x86 += -lunwind -llzma -lunwind-x86
151FEATURE_CHECK_LDFLAGS-libunwind-x86_64 += -lunwind -llzma -lunwind-x86_64
152
153FEATURE_CHECK_LDFLAGS-libcrypto = -lcrypto
154
155ifdef CSINCLUDES
156  LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
157endif
158OPENCSDLIBS := -lopencsd_c_api -lopencsd
159ifeq ($(findstring -static,${LDFLAGS}),-static)
160  OPENCSDLIBS += -lstdc++
161endif
162ifdef CSLIBS
163  LIBOPENCSD_LDFLAGS := -L$(CSLIBS)
164endif
165FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
166FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
167
168ifeq ($(NO_PERF_REGS),0)
169  CFLAGS += -DHAVE_PERF_REGS_SUPPORT
170endif
171
172# for linking with debug library, run like:
173# make DEBUG=1 LIBDW_DIR=/opt/libdw/
174ifdef LIBDW_DIR
175  LIBDW_CFLAGS  := -I$(LIBDW_DIR)/include
176  LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
177endif
178DWARFLIBS := -ldw
179ifeq ($(findstring -static,${LDFLAGS}),-static)
180  DWARFLIBS += -lelf -lebl -ldl -lz -llzma -lbz2
181endif
182FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
183FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
184
185# for linking with debug library, run like:
186# make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
187ifdef LIBBABELTRACE_DIR
188  LIBBABELTRACE_CFLAGS  := -I$(LIBBABELTRACE_DIR)/include
189  LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
190endif
191FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
192FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
193
194ifdef LIBZSTD_DIR
195  LIBZSTD_CFLAGS  := -I$(LIBZSTD_DIR)/lib
196  LIBZSTD_LDFLAGS := -L$(LIBZSTD_DIR)/lib
197endif
198FEATURE_CHECK_CFLAGS-libzstd := $(LIBZSTD_CFLAGS)
199FEATURE_CHECK_LDFLAGS-libzstd := $(LIBZSTD_LDFLAGS)
200
201FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
202# include ARCH specific config
203-include $(src-perf)/arch/$(SRCARCH)/Makefile
204
205ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
206  CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
207endif
208
209include $(srctree)/tools/scripts/utilities.mak
210
211ifeq ($(call get-executable,$(FLEX)),)
212  dummy := $(error Error: $(FLEX) is missing on this system, please install it)
213endif
214
215ifeq ($(call get-executable,$(BISON)),)
216  dummy := $(error Error: $(BISON) is missing on this system, please install it)
217endif
218
219ifeq ($(BUILD_BPF_SKEL),1)
220  ifeq ($(call get-executable,$(CLANG)),)
221    dummy := $(error $(CLANG) is missing on this system, please install it to be able to build with BUILD_BPF_SKEL=1)
222  endif
223endif
224
225ifneq ($(OUTPUT),)
226  ifeq ($(shell expr $(shell $(BISON) --version | grep bison | sed -e 's/.\+ \([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/\1\2\3/g') \>\= 371), 1)
227    BISON_FILE_PREFIX_MAP := --file-prefix-map=$(OUTPUT)=
228  endif
229endif
230
231# Treat warnings as errors unless directed not to
232ifneq ($(WERROR),0)
233  CORE_CFLAGS += -Werror
234  CXXFLAGS += -Werror
235  HOSTCFLAGS += -Werror
236endif
237
238ifndef DEBUG
239  DEBUG := 0
240endif
241
242ifeq ($(DEBUG),0)
243CORE_CFLAGS += -DNDEBUG=1
244ifeq ($(CC_NO_CLANG), 0)
245  CORE_CFLAGS += -O3
246else
247  CORE_CFLAGS += -O6
248endif
249else
250  CORE_CFLAGS += -g
251  CXXFLAGS += -g
252endif
253
254ifdef PARSER_DEBUG
255  PARSER_DEBUG_BISON := -t
256  PARSER_DEBUG_FLEX  := -d
257  CFLAGS             += -DPARSER_DEBUG
258  $(call detected_var,PARSER_DEBUG_BISON)
259  $(call detected_var,PARSER_DEBUG_FLEX)
260endif
261
262ifdef LTO
263  CORE_CFLAGS += -flto
264  CXXFLAGS += -flto
265endif
266
267# Try different combinations to accommodate systems that only have
268# python[2][3]-config in weird combinations in the following order of
269# priority from lowest to highest:
270#   * python2-config as per pep-0394.
271#   * python-config
272#   * python3-config
273#   * $(PYTHON)-config (If PYTHON is user supplied but PYTHON_CONFIG isn't)
274#
275PYTHON_AUTO := python-config
276PYTHON_AUTO := $(if $(call get-executable,python2-config),python2-config,$(PYTHON_AUTO))
277PYTHON_AUTO := $(if $(call get-executable,python-config),python-config,$(PYTHON_AUTO))
278PYTHON_AUTO := $(if $(call get-executable,python3-config),python3-config,$(PYTHON_AUTO))
279
280# If PYTHON is defined but PYTHON_CONFIG isn't, then take $(PYTHON)-config as if it was the user
281# supplied value for PYTHON_CONFIG. Because it's "user supplied", error out if it doesn't exist.
282ifdef PYTHON
283  ifndef PYTHON_CONFIG
284    PYTHON_CONFIG_AUTO := $(call get-executable,$(PYTHON)-config)
285    PYTHON_CONFIG := $(if $(PYTHON_CONFIG_AUTO),$(PYTHON_CONFIG_AUTO),\
286                          $(call $(error $(PYTHON)-config not found)))
287  endif
288endif
289
290# Select either auto detected python and python-config or use user supplied values if they are
291# defined. get-executable-or-default fails with an error if the first argument is supplied but
292# doesn't exist.
293override PYTHON_CONFIG := $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON_AUTO))
294override PYTHON := $(call get-executable-or-default,PYTHON,$(subst -config,,$(PYTHON_CONFIG)))
295
296grep-libs  = $(filter -l%,$(1))
297strip-libs  = $(filter-out -l%,$(1))
298
299PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
300
301# Python 3.8 changed the output of `python-config --ldflags` to not include the
302# '-lpythonX.Y' flag unless '--embed' is also passed. The feature check for
303# libpython fails if that flag is not included in LDFLAGS
304ifeq ($(shell $(PYTHON_CONFIG_SQ) --ldflags --embed 2>&1 1>/dev/null; echo $$?), 0)
305  PYTHON_CONFIG_LDFLAGS := --ldflags --embed
306else
307  PYTHON_CONFIG_LDFLAGS := --ldflags
308endif
309
310ifdef PYTHON_CONFIG
311  PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) $(PYTHON_CONFIG_LDFLAGS) 2>/dev/null)
312  PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
313  PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
314  PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null)
315  FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
316  ifeq ($(CC_NO_CLANG), 0)
317    PYTHON_EMBED_CCOPTS := $(filter-out -ffat-lto-objects, $(PYTHON_EMBED_CCOPTS))
318  endif
319endif
320
321FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
322FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
323
324FEATURE_CHECK_LDFLAGS-libaio = -lrt
325
326FEATURE_CHECK_LDFLAGS-disassembler-four-args = -lbfd -lopcodes -ldl
327FEATURE_CHECK_LDFLAGS-disassembler-init-styled = -lbfd -lopcodes -ldl
328
329CORE_CFLAGS += -fno-omit-frame-pointer
330CORE_CFLAGS += -Wall
331CORE_CFLAGS += -Wextra
332CORE_CFLAGS += -std=gnu11
333
334CXXFLAGS += -std=gnu++17 -fno-exceptions -fno-rtti
335CXXFLAGS += -Wall
336CXXFLAGS += -Wextra
337CXXFLAGS += -fno-omit-frame-pointer
338
339HOSTCFLAGS += -Wall
340HOSTCFLAGS += -Wextra
341
342# Enforce a non-executable stack, as we may regress (again) in the future by
343# adding assembler files missing the .GNU-stack linker note.
344LDFLAGS += -Wl,-z,noexecstack
345
346EXTLIBS = -lpthread -lrt -lm -ldl
347
348ifneq ($(TCMALLOC),)
349  CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free
350  EXTLIBS += -ltcmalloc
351endif
352
353ifeq ($(FEATURES_DUMP),)
354# We will display at the end of this Makefile.config, using $(call feature_display_entries)
355# As we may retry some feature detection here, see the disassembler-four-args case, for instance
356  FEATURE_DISPLAY_DEFERRED := 1
357include $(srctree)/tools/build/Makefile.feature
358else
359include $(FEATURES_DUMP)
360endif
361
362ifeq ($(feature-stackprotector-all), 1)
363  CORE_CFLAGS += -fstack-protector-all
364endif
365
366ifeq ($(DEBUG),0)
367  ifeq ($(feature-fortify-source), 1)
368    CORE_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
369  endif
370endif
371
372INC_FLAGS += -I$(src-perf)/util/include
373INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
374INC_FLAGS += -I$(srctree)/tools/include/
375INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
376INC_FLAGS += -I$(srctree)/tools/include/uapi
377INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
378INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
379
380# $(obj-perf)      for generated common-cmds.h
381# $(obj-perf)/util for generated bison/flex headers
382ifneq ($(OUTPUT),)
383INC_FLAGS += -I$(obj-perf)/util
384INC_FLAGS += -I$(obj-perf)
385endif
386
387INC_FLAGS += -I$(src-perf)/util
388INC_FLAGS += -I$(src-perf)
389
390CORE_CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
391
392CFLAGS   += $(CORE_CFLAGS) $(INC_FLAGS)
393CXXFLAGS += $(INC_FLAGS)
394
395LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS)
396
397ifeq ($(feature-pthread-attr-setaffinity-np), 1)
398  CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
399endif
400
401ifeq ($(feature-pthread-barrier), 1)
402  CFLAGS += -DHAVE_PTHREAD_BARRIER
403endif
404
405ifndef NO_BIONIC
406  $(call feature_check,bionic)
407  ifeq ($(feature-bionic), 1)
408    BIONIC := 1
409    CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE
410    CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE
411    EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
412    EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
413  endif
414endif
415
416ifeq ($(feature-eventfd), 1)
417  CFLAGS += -DHAVE_EVENTFD_SUPPORT
418endif
419
420ifeq ($(feature-get_current_dir_name), 1)
421  CFLAGS += -DHAVE_GET_CURRENT_DIR_NAME
422endif
423
424ifeq ($(feature-gettid), 1)
425  CFLAGS += -DHAVE_GETTID
426endif
427
428ifeq ($(feature-file-handle), 1)
429  CFLAGS += -DHAVE_FILE_HANDLE
430endif
431
432ifdef NO_LIBELF
433  NO_DWARF := 1
434  NO_LIBUNWIND := 1
435  NO_LIBDW_DWARF_UNWIND := 1
436  NO_LIBBPF := 1
437  NO_JVMTI := 1
438else
439  ifeq ($(feature-libelf), 0)
440    ifeq ($(feature-glibc), 1)
441      LIBC_SUPPORT := 1
442    endif
443    ifeq ($(BIONIC),1)
444      LIBC_SUPPORT := 1
445    endif
446    ifeq ($(LIBC_SUPPORT),1)
447      msg := $(error ERROR: No libelf found. Disables 'probe' tool, jvmti and BPF support. Please install libelf-dev, libelf-devel, elfutils-libelf-devel or build with NO_LIBELF=1.)
448    else
449      ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
450        ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
451          msg := $(error No libasan found, please install libasan);
452        endif
453      endif
454
455      ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
456        ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
457          msg := $(error No libubsan found, please install libubsan);
458        endif
459      endif
460
461      ifneq ($(filter s% -static%,$(LDFLAGS),),)
462        msg := $(error No static glibc found, please install glibc-static);
463      else
464        msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
465      endif
466    endif
467  else
468    ifndef NO_LIBDW_DWARF_UNWIND
469      ifneq ($(feature-libdw-dwarf-unwind),1)
470        NO_LIBDW_DWARF_UNWIND := 1
471        msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
472      endif
473    endif
474    ifneq ($(feature-dwarf), 1)
475      ifndef NO_DWARF
476        msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
477        NO_DWARF := 1
478      endif
479    else
480      ifneq ($(feature-dwarf_getlocations), 1)
481        msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
482      else
483        CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
484      endif # dwarf_getlocations
485    endif # Dwarf support
486  endif # libelf support
487endif # NO_LIBELF
488
489ifeq ($(feature-libaio), 1)
490  ifndef NO_AIO
491    CFLAGS += -DHAVE_AIO_SUPPORT
492  endif
493endif
494
495ifdef NO_DWARF
496  NO_LIBDW_DWARF_UNWIND := 1
497endif
498
499ifeq ($(feature-scandirat), 1)
500  CFLAGS += -DHAVE_SCANDIRAT_SUPPORT
501endif
502
503ifeq ($(feature-sched_getcpu), 1)
504  CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
505endif
506
507ifeq ($(feature-setns), 1)
508  CFLAGS += -DHAVE_SETNS_SUPPORT
509  $(call detected,CONFIG_SETNS)
510endif
511
512ifdef CORESIGHT
513  $(call feature_check,libopencsd)
514  ifeq ($(feature-libopencsd), 1)
515    CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
516    ifeq ($(feature-reallocarray), 0)
517      CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
518    endif
519    LDFLAGS += $(LIBOPENCSD_LDFLAGS)
520    EXTLIBS += $(OPENCSDLIBS)
521    $(call detected,CONFIG_LIBOPENCSD)
522    ifdef CSTRACE_RAW
523      CFLAGS += -DCS_DEBUG_RAW
524      ifeq (${CSTRACE_RAW}, packed)
525        CFLAGS += -DCS_RAW_PACKED
526      endif
527    endif
528  else
529    dummy := $(error Error: No libopencsd library found or the version is not up-to-date. Please install recent libopencsd to build with CORESIGHT=1)
530  endif
531endif
532
533ifndef NO_LIBELF
534  CFLAGS += -DHAVE_LIBELF_SUPPORT
535  EXTLIBS += -lelf
536  $(call detected,CONFIG_LIBELF)
537
538  ifeq ($(feature-libelf-getphdrnum), 1)
539    CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
540  endif
541
542  ifeq ($(feature-libelf-gelf_getnote), 1)
543    CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
544  else
545    msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
546  endif
547
548  ifeq ($(feature-libelf-getshdrstrndx), 1)
549    CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
550  endif
551
552  ifndef NO_LIBDEBUGINFOD
553    $(call feature_check,libdebuginfod)
554    ifeq ($(feature-libdebuginfod), 1)
555      CFLAGS += -DHAVE_DEBUGINFOD_SUPPORT
556      EXTLIBS += -ldebuginfod
557    endif
558  endif
559
560  ifndef NO_DWARF
561    ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
562      msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
563      NO_DWARF := 1
564    else
565      CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
566      LDFLAGS += $(LIBDW_LDFLAGS)
567      EXTLIBS += ${DWARFLIBS}
568      $(call detected,CONFIG_DWARF)
569    endif # PERF_HAVE_DWARF_REGS
570  endif # NO_DWARF
571
572  ifndef NO_LIBBPF
573    ifeq ($(feature-bpf), 1)
574      CFLAGS += -DHAVE_LIBBPF_SUPPORT
575      $(call detected,CONFIG_LIBBPF)
576
577      # detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
578      $(call feature_check,libbpf)
579
580      ifdef LIBBPF_DYNAMIC
581        ifeq ($(feature-libbpf), 1)
582          EXTLIBS += -lbpf
583          $(call detected,CONFIG_LIBBPF_DYNAMIC)
584        else
585          dummy := $(error Error: No libbpf devel library found or older than v1.0, please install/update libbpf-devel);
586        endif
587      else
588        # Libbpf will be built as a static library from tools/lib/bpf.
589	LIBBPF_STATIC := 1
590      endif
591    endif
592
593    ifndef NO_DWARF
594      ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
595        CFLAGS += -DHAVE_BPF_PROLOGUE
596        $(call detected,CONFIG_BPF_PROLOGUE)
597      else
598        msg := $(warning BPF prologue is not supported by architecture $(SRCARCH), missing regs_query_register_offset());
599      endif
600    else
601      msg := $(warning DWARF support is off, BPF prologue is disabled);
602    endif
603
604  endif # NO_LIBBPF
605endif # NO_LIBELF
606
607ifndef NO_SDT
608  ifneq ($(feature-sdt), 1)
609    msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
610    NO_SDT := 1;
611  else
612    CFLAGS += -DHAVE_SDT_EVENT
613    $(call detected,CONFIG_SDT_EVENT)
614  endif
615endif
616
617ifdef PERF_HAVE_JITDUMP
618  ifndef NO_LIBELF
619    $(call detected,CONFIG_JITDUMP)
620    CFLAGS += -DHAVE_JITDUMP
621  endif
622endif
623
624ifeq ($(SRCARCH),powerpc)
625  ifndef NO_DWARF
626    CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
627  endif
628endif
629
630ifndef NO_LIBUNWIND
631  have_libunwind :=
632
633  $(call feature_check,libunwind-x86)
634  ifeq ($(feature-libunwind-x86), 1)
635    $(call detected,CONFIG_LIBUNWIND_X86)
636    CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
637    LDFLAGS += -lunwind-x86
638    EXTLIBS_LIBUNWIND += -lunwind-x86
639    have_libunwind = 1
640  endif
641
642  $(call feature_check,libunwind-aarch64)
643  ifeq ($(feature-libunwind-aarch64), 1)
644    $(call detected,CONFIG_LIBUNWIND_AARCH64)
645    CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
646    LDFLAGS += -lunwind-aarch64
647    EXTLIBS_LIBUNWIND += -lunwind-aarch64
648    have_libunwind = 1
649    $(call feature_check,libunwind-debug-frame-aarch64)
650    ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
651      msg := $(warning No debug_frame support found in libunwind-aarch64);
652      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
653    endif
654  endif
655
656  ifneq ($(feature-libunwind), 1)
657    msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
658    NO_LOCAL_LIBUNWIND := 1
659  else
660    have_libunwind := 1
661    $(call detected,CONFIG_LOCAL_LIBUNWIND)
662  endif
663
664  ifneq ($(have_libunwind), 1)
665    NO_LIBUNWIND := 1
666  endif
667else
668  NO_LOCAL_LIBUNWIND := 1
669endif
670
671ifndef NO_LIBBPF
672  ifneq ($(feature-bpf), 1)
673    msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
674    NO_LIBBPF := 1
675  endif
676endif
677
678ifdef BUILD_BPF_SKEL
679  $(call feature_check,clang-bpf-co-re)
680  ifeq ($(feature-clang-bpf-co-re), 0)
681    dummy := $(error Error: clang too old/not installed. Please install recent clang to build with BUILD_BPF_SKEL)
682  endif
683  ifeq ($(filter -DHAVE_LIBBPF_SUPPORT, $(CFLAGS)),)
684    dummy := $(error Error: BPF skeleton support requires libbpf)
685  endif
686  $(call detected,CONFIG_PERF_BPF_SKEL)
687  CFLAGS += -DHAVE_BPF_SKEL
688endif
689
690ifndef GEN_VMLINUX_H
691  VMLINUX_H=$(src-perf)/util/bpf_skel/vmlinux/vmlinux.h
692endif
693
694dwarf-post-unwind := 1
695dwarf-post-unwind-text := BUG
696
697# setup DWARF post unwinder
698ifdef NO_LIBUNWIND
699  ifdef NO_LIBDW_DWARF_UNWIND
700    msg := $(warning Disabling post unwind, no support found.);
701    dwarf-post-unwind := 0
702  else
703    dwarf-post-unwind-text := libdw
704    $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
705  endif
706else
707  dwarf-post-unwind-text := libunwind
708  $(call detected,CONFIG_LIBUNWIND)
709  # Enable libunwind support by default.
710  ifndef NO_LIBDW_DWARF_UNWIND
711    NO_LIBDW_DWARF_UNWIND := 1
712  endif
713endif
714
715ifeq ($(dwarf-post-unwind),1)
716  CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
717  $(call detected,CONFIG_DWARF_UNWIND)
718else
719  NO_DWARF_UNWIND := 1
720endif
721
722ifndef NO_LOCAL_LIBUNWIND
723  ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
724    $(call feature_check,libunwind-debug-frame)
725    ifneq ($(feature-libunwind-debug-frame), 1)
726      msg := $(warning No debug_frame support found in libunwind);
727      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
728    endif
729  else
730    # non-ARM has no dwarf_find_debug_frame() function:
731    CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
732  endif
733  EXTLIBS += $(LIBUNWIND_LIBS)
734  LDFLAGS += $(LIBUNWIND_LIBS)
735endif
736ifeq ($(findstring -static,${LDFLAGS}),-static)
737  # gcc -static links libgcc_eh which contans piece of libunwind
738  LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
739endif
740
741ifndef NO_LIBUNWIND
742  CFLAGS  += -DHAVE_LIBUNWIND_SUPPORT
743  CFLAGS  += $(LIBUNWIND_CFLAGS)
744  LDFLAGS += $(LIBUNWIND_LDFLAGS)
745  EXTLIBS += $(EXTLIBS_LIBUNWIND)
746endif
747
748ifneq ($(NO_LIBTRACEEVENT),1)
749  ifeq ($(NO_SYSCALL_TABLE),0)
750    $(call detected,CONFIG_TRACE)
751  else
752    ifndef NO_LIBAUDIT
753      $(call feature_check,libaudit)
754      ifneq ($(feature-libaudit), 1)
755        msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
756        NO_LIBAUDIT := 1
757      else
758        CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
759        EXTLIBS += -laudit
760        $(call detected,CONFIG_TRACE)
761      endif
762    endif
763  endif
764endif
765
766ifndef NO_LIBCRYPTO
767  ifneq ($(feature-libcrypto), 1)
768    msg := $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev);
769    NO_LIBCRYPTO := 1
770  else
771    CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
772    EXTLIBS += -lcrypto
773    $(call detected,CONFIG_CRYPTO)
774  endif
775endif
776
777ifndef NO_SLANG
778  ifneq ($(feature-libslang), 1)
779    ifneq ($(feature-libslang-include-subdir), 1)
780      msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
781      NO_SLANG := 1
782    else
783      CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
784    endif
785  endif
786  ifndef NO_SLANG
787    # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
788    CFLAGS += -DHAVE_SLANG_SUPPORT
789    EXTLIBS += -lslang
790    $(call detected,CONFIG_SLANG)
791  endif
792endif
793
794ifdef GTK2
795  FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
796  $(call feature_check,gtk2)
797  ifneq ($(feature-gtk2), 1)
798    msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
799    NO_GTK2 := 1
800  else
801    $(call feature_check,gtk2-infobar)
802    ifeq ($(feature-gtk2-infobar), 1)
803      GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
804    endif
805    CFLAGS += -DHAVE_GTK2_SUPPORT
806    GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
807    GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
808    EXTLIBS += -ldl
809  endif
810endif
811
812ifdef NO_LIBPERL
813  CFLAGS += -DNO_LIBPERL
814else
815  PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
816  PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
817  PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
818  PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
819  PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
820  PERL_EMBED_CCOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
821  PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
822  FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
823
824  ifneq ($(feature-libperl), 1)
825    CFLAGS += -DNO_LIBPERL
826    NO_LIBPERL := 1
827    msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
828  else
829    LDFLAGS += $(PERL_EMBED_LDFLAGS)
830    EXTLIBS += $(PERL_EMBED_LIBADD)
831    CFLAGS += -DHAVE_LIBPERL_SUPPORT
832    ifeq ($(CC_NO_CLANG), 0)
833      CFLAGS += -Wno-compound-token-split-by-macro
834    endif
835    $(call detected,CONFIG_LIBPERL)
836  endif
837endif
838
839ifeq ($(feature-timerfd), 1)
840  CFLAGS += -DHAVE_TIMERFD_SUPPORT
841else
842  msg := $(warning No timerfd support. Disables 'perf kvm stat live');
843endif
844
845disable-python = $(eval $(disable-python_code))
846define disable-python_code
847  CFLAGS += -DNO_LIBPYTHON
848  $(warning $1)
849  NO_LIBPYTHON := 1
850endef
851
852PYTHON_EXTENSION_SUFFIX := '.so'
853ifdef NO_LIBPYTHON
854  $(call disable-python,Python support disabled by user)
855else
856
857  ifndef PYTHON
858    $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
859  else
860    PYTHON_WORD := $(call shell-wordify,$(PYTHON))
861
862    ifndef PYTHON_CONFIG
863      $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
864    else
865
866      ifneq ($(feature-libpython), 1)
867        $(call disable-python,No 'Python.h' was found: disables Python support - please install python-devel/python-dev)
868      else
869         LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
870         EXTLIBS += $(PYTHON_EMBED_LIBADD)
871         PYTHON_SETUPTOOLS_INSTALLED := $(shell $(PYTHON) -c 'import setuptools;' 2> /dev/null && echo "yes" || echo "no")
872         ifeq ($(PYTHON_SETUPTOOLS_INSTALLED), yes)
873           PYTHON_EXTENSION_SUFFIX := $(shell $(PYTHON) -c 'from importlib import machinery; print(machinery.EXTENSION_SUFFIXES[0])')
874           LANG_BINDINGS += $(obj-perf)python/perf$(PYTHON_EXTENSION_SUFFIX)
875	 else
876           msg := $(warning Missing python setuptools, the python binding won't be built, please install python3-setuptools or equivalent);
877         endif
878         CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
879         $(call detected,CONFIG_LIBPYTHON)
880      endif
881    endif
882  endif
883endif
884
885ifneq ($(NO_JEVENTS),1)
886  ifeq ($(wildcard pmu-events/arch/$(SRCARCH)/mapfile.csv),)
887    NO_JEVENTS := 1
888  endif
889endif
890ifneq ($(NO_JEVENTS),1)
891  NO_JEVENTS := 0
892  ifndef PYTHON
893    $(error ERROR: No python interpreter needed for jevents generation. Install python or build with NO_JEVENTS=1.)
894  else
895    # jevents.py uses f-strings present in Python 3.6 released in Dec. 2016.
896    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)
897    ifneq ($(JEVENTS_PYTHON_GOOD), 1)
898      $(error ERROR: Python interpreter needed for jevents generation too old (older than 3.6). Install a newer python or build with NO_JEVENTS=1.)
899    endif
900  endif
901endif
902
903ifdef BUILD_NONDISTRO
904  ifeq ($(feature-libbfd), 1)
905    EXTLIBS += -lbfd -lopcodes
906  else
907    # we are on a system that requires -liberty and (maybe) -lz
908    # to link against -lbfd; test each case individually here
909
910    # call all detections now so we get correct
911    # status in VF output
912    $(call feature_check,libbfd-liberty)
913    $(call feature_check,libbfd-liberty-z)
914
915    ifeq ($(feature-libbfd-liberty), 1)
916      EXTLIBS += -lbfd -lopcodes -liberty
917      FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl
918      FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -ldl
919    else
920      ifeq ($(feature-libbfd-liberty-z), 1)
921        EXTLIBS += -lbfd -lopcodes -liberty -lz
922        FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl
923        FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -lz -ldl
924      endif
925    endif
926    $(call feature_check,disassembler-four-args)
927    $(call feature_check,disassembler-init-styled)
928  endif
929
930  CFLAGS += -DHAVE_LIBBFD_SUPPORT
931  CXXFLAGS += -DHAVE_LIBBFD_SUPPORT
932  ifeq ($(feature-libbfd-buildid), 1)
933    CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
934  else
935    msg := $(warning Old version of libbfd/binutils things like PE executable profiling will not be available);
936  endif
937endif
938
939ifndef NO_DEMANGLE
940  $(call feature_check,cxa-demangle)
941  ifeq ($(feature-cxa-demangle), 1)
942    EXTLIBS += -lstdc++
943    CFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT
944    CXXFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT
945    $(call detected,CONFIG_CXX_DEMANGLE)
946  endif
947  ifdef BUILD_NONDISTRO
948    ifeq ($(filter -liberty,$(EXTLIBS)),)
949      $(call feature_check,cplus-demangle)
950      ifeq ($(feature-cplus-demangle), 1)
951        EXTLIBS += -liberty
952      endif
953    endif
954    ifneq ($(filter -liberty,$(EXTLIBS)),)
955      CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
956      CXXFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
957    endif
958  endif
959endif
960
961ifndef NO_ZLIB
962  ifeq ($(feature-zlib), 1)
963    CFLAGS += -DHAVE_ZLIB_SUPPORT
964    EXTLIBS += -lz
965    $(call detected,CONFIG_ZLIB)
966  else
967    NO_ZLIB := 1
968  endif
969endif
970
971ifndef NO_LZMA
972  ifeq ($(feature-lzma), 1)
973    CFLAGS += -DHAVE_LZMA_SUPPORT
974    EXTLIBS += -llzma
975    $(call detected,CONFIG_LZMA)
976  else
977    msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
978    NO_LZMA := 1
979  endif
980endif
981
982ifndef NO_LIBZSTD
983  ifeq ($(feature-libzstd), 1)
984    CFLAGS += -DHAVE_ZSTD_SUPPORT
985    CFLAGS += $(LIBZSTD_CFLAGS)
986    LDFLAGS += $(LIBZSTD_LDFLAGS)
987    EXTLIBS += -lzstd
988    $(call detected,CONFIG_ZSTD)
989  else
990    msg := $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR);
991    NO_LIBZSTD := 1
992  endif
993endif
994
995ifndef NO_LIBCAP
996  ifeq ($(feature-libcap), 1)
997    CFLAGS += -DHAVE_LIBCAP_SUPPORT
998    EXTLIBS += -lcap
999    $(call detected,CONFIG_LIBCAP)
1000  else
1001    msg := $(warning No libcap found, disables capability support, please install libcap-devel/libcap-dev);
1002    NO_LIBCAP := 1
1003  endif
1004endif
1005
1006ifndef NO_BACKTRACE
1007  ifeq ($(feature-backtrace), 1)
1008    CFLAGS += -DHAVE_BACKTRACE_SUPPORT
1009  endif
1010endif
1011
1012ifndef NO_LIBNUMA
1013  ifeq ($(feature-libnuma), 0)
1014    msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
1015    NO_LIBNUMA := 1
1016  else
1017    ifeq ($(feature-numa_num_possible_cpus), 0)
1018      msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
1019      NO_LIBNUMA := 1
1020    else
1021      CFLAGS += -DHAVE_LIBNUMA_SUPPORT
1022      EXTLIBS += -lnuma
1023      $(call detected,CONFIG_NUMA)
1024    endif
1025  endif
1026endif
1027
1028ifdef HAVE_KVM_STAT_SUPPORT
1029    CFLAGS += -DHAVE_KVM_STAT_SUPPORT
1030endif
1031
1032ifeq ($(feature-disassembler-four-args), 1)
1033    CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
1034endif
1035
1036ifeq ($(feature-disassembler-init-styled), 1)
1037    CFLAGS += -DDISASM_INIT_STYLED
1038endif
1039
1040ifeq (${IS_64_BIT}, 1)
1041  ifndef NO_PERF_READ_VDSO32
1042    $(call feature_check,compile-32)
1043    ifeq ($(feature-compile-32), 1)
1044      CFLAGS += -DHAVE_PERF_READ_VDSO32
1045    else
1046      NO_PERF_READ_VDSO32 := 1
1047    endif
1048  endif
1049  ifneq ($(SRCARCH), x86)
1050    NO_PERF_READ_VDSOX32 := 1
1051  endif
1052  ifndef NO_PERF_READ_VDSOX32
1053    $(call feature_check,compile-x32)
1054    ifeq ($(feature-compile-x32), 1)
1055      CFLAGS += -DHAVE_PERF_READ_VDSOX32
1056    else
1057      NO_PERF_READ_VDSOX32 := 1
1058    endif
1059  endif
1060else
1061  NO_PERF_READ_VDSO32 := 1
1062  NO_PERF_READ_VDSOX32 := 1
1063endif
1064
1065ifndef NO_LIBBABELTRACE
1066  $(call feature_check,libbabeltrace)
1067  ifeq ($(feature-libbabeltrace), 1)
1068    CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
1069    LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
1070    EXTLIBS += -lbabeltrace-ctf
1071    $(call detected,CONFIG_LIBBABELTRACE)
1072  else
1073    msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
1074  endif
1075endif
1076
1077ifndef NO_AUXTRACE
1078  ifeq ($(SRCARCH),x86)
1079    ifeq ($(feature-get_cpuid), 0)
1080      msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
1081      NO_AUXTRACE := 1
1082    endif
1083  endif
1084  ifndef NO_AUXTRACE
1085    $(call detected,CONFIG_AUXTRACE)
1086    CFLAGS += -DHAVE_AUXTRACE_SUPPORT
1087    ifeq ($(feature-reallocarray), 0)
1088      CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
1089    endif
1090  endif
1091endif
1092
1093ifdef EXTRA_TESTS
1094    $(call detected,CONFIG_EXTRA_TESTS)
1095    CFLAGS += -DHAVE_EXTRA_TESTS
1096endif
1097
1098ifndef NO_JVMTI
1099  ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
1100    JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
1101  else
1102    ifneq (,$(wildcard /usr/sbin/alternatives))
1103      JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
1104    endif
1105  endif
1106  ifndef JDIR
1107    $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
1108    NO_JVMTI := 1
1109  endif
1110endif
1111
1112ifndef NO_JVMTI
1113  FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
1114  $(call feature_check,jvmti)
1115  ifeq ($(feature-jvmti), 1)
1116    $(call detected_var,JDIR)
1117    ifndef NO_JVMTI_CMLR
1118      FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
1119      $(call feature_check,jvmti-cmlr)
1120      ifeq ($(feature-jvmti-cmlr), 1)
1121        CFLAGS += -DHAVE_JVMTI_CMLR
1122      endif
1123    endif # NO_JVMTI_CMLR
1124  else
1125    $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
1126    NO_JVMTI := 1
1127  endif
1128endif
1129
1130USE_CXX = 0
1131USE_CLANGLLVM = 0
1132ifdef LIBCLANGLLVM
1133  $(call feature_check,cxx)
1134  ifneq ($(feature-cxx), 1)
1135    msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
1136  else
1137    $(call feature_check,llvm)
1138    $(call feature_check,llvm-version)
1139    ifneq ($(feature-llvm), 1)
1140      msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
1141    else
1142      $(call feature_check,clang)
1143      ifneq ($(feature-clang), 1)
1144        msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
1145      else
1146        CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
1147        CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
1148        $(call detected,CONFIG_CXX)
1149        $(call detected,CONFIG_CLANGLLVM)
1150	USE_CXX = 1
1151	USE_LLVM = 1
1152	USE_CLANG = 1
1153        ifneq ($(feature-llvm-version),1)
1154          msg := $(warning This version of LLVM is not tested. May cause build errors)
1155        endif
1156      endif
1157    endif
1158  endif
1159endif
1160
1161ifndef NO_LIBPFM4
1162  $(call feature_check,libpfm4)
1163  ifeq ($(feature-libpfm4), 1)
1164    CFLAGS += -DHAVE_LIBPFM
1165    EXTLIBS += -lpfm
1166    ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
1167    $(call detected,CONFIG_LIBPFM4)
1168  else
1169    msg := $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev);
1170  endif
1171endif
1172
1173# libtraceevent is a recommended dependency picked up from the system.
1174ifneq ($(NO_LIBTRACEEVENT),1)
1175  $(call feature_check,libtraceevent)
1176  ifeq ($(feature-libtraceevent), 1)
1177    CFLAGS += -DHAVE_LIBTRACEEVENT
1178    EXTLIBS += -ltraceevent
1179    LIBTRACEEVENT_VERSION := $(shell $(PKG_CONFIG) --modversion libtraceevent)
1180    LIBTRACEEVENT_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1181    LIBTRACEEVENT_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1182    LIBTRACEEVENT_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1183    LIBTRACEEVENT_VERSION_CPP := $(shell expr $(LIBTRACEEVENT_VERSION_1) \* 255 \* 255 + $(LIBTRACEEVENT_VERSION_2) \* 255 + $(LIBTRACEEVENT_VERSION_3))
1184    CFLAGS += -DLIBTRACEEVENT_VERSION=$(LIBTRACEEVENT_VERSION_CPP)
1185    $(call detected,CONFIG_LIBTRACEEVENT)
1186  else
1187    dummy := $(error ERROR: libtraceevent is missing. Please install libtraceevent-dev/libtraceevent-devel or build with NO_LIBTRACEEVENT=1)
1188  endif
1189
1190  $(call feature_check,libtracefs)
1191  ifeq ($(feature-libtracefs), 1)
1192    EXTLIBS += -ltracefs
1193    LIBTRACEFS_VERSION := $(shell $(PKG_CONFIG) --modversion libtracefs)
1194    LIBTRACEFS_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEFS_VERSION)))
1195    LIBTRACEFS_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEFS_VERSION)))
1196    LIBTRACEFS_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEFS_VERSION)))
1197    LIBTRACEFS_VERSION_CPP := $(shell expr $(LIBTRACEFS_VERSION_1) \* 255 \* 255 + $(LIBTRACEFS_VERSION_2) \* 255 + $(LIBTRACEFS_VERSION_3))
1198    CFLAGS += -DLIBTRACEFS_VERSION=$(LIBTRACEFS_VERSION_CPP)
1199  endif
1200endif
1201
1202# Among the variables below, these:
1203#   perfexecdir
1204#   libbpf_include_dir
1205#   perf_examples_dir
1206#   template_dir
1207#   mandir
1208#   infodir
1209#   htmldir
1210#   ETC_PERFCONFIG (but not sysconfdir)
1211# can be specified as a relative path some/where/else;
1212# this is interpreted as relative to $(prefix) and "perf" at
1213# runtime figures out where they are based on the path to the executable.
1214# This can help installing the suite in a relocatable way.
1215
1216# Make the path relative to DESTDIR, not to prefix
1217ifndef DESTDIR
1218prefix ?= $(HOME)
1219endif
1220bindir_relative = bin
1221bindir = $(abspath $(prefix)/$(bindir_relative))
1222includedir_relative = include
1223includedir = $(abspath $(prefix)/$(includedir_relative))
1224mandir = share/man
1225infodir = share/info
1226perfexecdir = libexec/perf-core
1227# FIXME: system's libbpf header directory, where we expect to find bpf/bpf_helpers.h, for instance
1228libbpf_include_dir = /usr/include
1229perf_examples_dir = lib/perf/examples
1230sharedir = $(prefix)/share
1231template_dir = share/perf-core/templates
1232STRACE_GROUPS_DIR = share/perf-core/strace/groups
1233htmldir = share/doc/perf-doc
1234tipdir = share/doc/perf-tip
1235srcdir = $(srctree)/tools/perf
1236ifeq ($(prefix),/usr)
1237sysconfdir = /etc
1238ETC_PERFCONFIG = $(sysconfdir)/perfconfig
1239else
1240sysconfdir = $(prefix)/etc
1241ETC_PERFCONFIG = etc/perfconfig
1242endif
1243ifndef lib
1244ifeq ($(SRCARCH)$(IS_64_BIT), x861)
1245lib = lib64
1246else
1247lib = lib
1248endif
1249endif # lib
1250libdir = $(prefix)/$(lib)
1251
1252# Shell quote (do not use $(call) to accommodate ancient setups);
1253ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
1254STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
1255DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
1256bindir_SQ = $(subst ','\'',$(bindir))
1257includedir_SQ = $(subst ','\'',$(includedir))
1258mandir_SQ = $(subst ','\'',$(mandir))
1259infodir_SQ = $(subst ','\'',$(infodir))
1260perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
1261libbpf_include_dir_SQ = $(subst ','\'',$(libbpf_include_dir))
1262perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
1263template_dir_SQ = $(subst ','\'',$(template_dir))
1264htmldir_SQ = $(subst ','\'',$(htmldir))
1265tipdir_SQ = $(subst ','\'',$(tipdir))
1266prefix_SQ = $(subst ','\'',$(prefix))
1267sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
1268libdir_SQ = $(subst ','\'',$(libdir))
1269srcdir_SQ = $(subst ','\'',$(srcdir))
1270
1271ifneq ($(filter /%,$(firstword $(perfexecdir))),)
1272perfexec_instdir = $(perfexecdir)
1273perf_include_instdir = $(libbpf_include_dir)
1274perf_examples_instdir = $(perf_examples_dir)
1275STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
1276tip_instdir = $(tipdir)
1277else
1278perfexec_instdir = $(prefix)/$(perfexecdir)
1279perf_include_instdir = $(prefix)/$(libbpf_include_dir)
1280perf_examples_instdir = $(prefix)/$(perf_examples_dir)
1281STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
1282tip_instdir = $(prefix)/$(tipdir)
1283endif
1284perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
1285perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
1286perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
1287STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
1288tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
1289
1290export perfexec_instdir_SQ
1291
1292print_var = $(eval $(print_var_code)) $(info $(MSG))
1293define print_var_code
1294    MSG = $(shell printf '...%40s: %s' $(1) $($(1)))
1295endef
1296
1297ifeq ($(feature_display),1)
1298  $(call feature_display_entries)
1299endif
1300
1301ifeq ($(VF),1)
1302  # Display EXTRA features which are detected manualy
1303  # from here with feature_check call and thus cannot
1304  # be partof global state output.
1305  $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),) $(info $(MSG)))
1306  $(call print_var,prefix)
1307  $(call print_var,bindir)
1308  $(call print_var,libdir)
1309  $(call print_var,sysconfdir)
1310  $(call print_var,LIBUNWIND_DIR)
1311  $(call print_var,LIBDW_DIR)
1312  $(call print_var,JDIR)
1313
1314  ifeq ($(dwarf-post-unwind),1)
1315    $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text)) $(info $(MSG))
1316  endif
1317endif
1318
1319$(info )
1320
1321$(call detected_var,bindir_SQ)
1322$(call detected_var,PYTHON_WORD)
1323ifneq ($(OUTPUT),)
1324$(call detected_var,OUTPUT)
1325endif
1326$(call detected_var,htmldir_SQ)
1327$(call detected_var,infodir_SQ)
1328$(call detected_var,mandir_SQ)
1329$(call detected_var,ETC_PERFCONFIG_SQ)
1330$(call detected_var,STRACE_GROUPS_DIR_SQ)
1331$(call detected_var,prefix_SQ)
1332$(call detected_var,perfexecdir_SQ)
1333$(call detected_var,libbpf_include_dir_SQ)
1334$(call detected_var,perf_examples_dir_SQ)
1335$(call detected_var,tipdir_SQ)
1336$(call detected_var,srcdir_SQ)
1337$(call detected_var,LIBDIR)
1338$(call detected_var,GTK_CFLAGS)
1339$(call detected_var,PERL_EMBED_CCOPTS)
1340$(call detected_var,PYTHON_EMBED_CCOPTS)
1341ifneq ($(BISON_FILE_PREFIX_MAP),)
1342$(call detected_var,BISON_FILE_PREFIX_MAP)
1343endif
1344
1345# re-generate FEATURE-DUMP as we may have called feature_check, found out
1346# extra libraries to add to LDFLAGS of some other test and then redo those
1347# tests, see the block about libbfd, disassembler-four-args, for instance.
1348$(shell rm -f $(FEATURE_DUMP_FILENAME))
1349$(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))
1350