xref: /openbmc/linux/tools/perf/Makefile.config (revision d5f0942b) 
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
159ifeq ($(findstring -static,${LDFLAGS}),-static)
160  OPENCSDLIBS += -lopencsd -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
249endif
250
251ifdef PARSER_DEBUG
252  PARSER_DEBUG_BISON := -t
253  PARSER_DEBUG_FLEX  := -d
254  CFLAGS             += -DPARSER_DEBUG
255  $(call detected_var,PARSER_DEBUG_BISON)
256  $(call detected_var,PARSER_DEBUG_FLEX)
257endif
258
259# Try different combinations to accommodate systems that only have
260# python[2][3]-config in weird combinations in the following order of
261# priority from lowest to highest:
262#   * python2-config as per pep-0394.
263#   * python-config
264#   * python3-config
265#   * $(PYTHON)-config (If PYTHON is user supplied but PYTHON_CONFIG isn't)
266#
267PYTHON_AUTO := python-config
268PYTHON_AUTO := $(if $(call get-executable,python2-config),python2-config,$(PYTHON_AUTO))
269PYTHON_AUTO := $(if $(call get-executable,python-config),python-config,$(PYTHON_AUTO))
270PYTHON_AUTO := $(if $(call get-executable,python3-config),python3-config,$(PYTHON_AUTO))
271
272# If PYTHON is defined but PYTHON_CONFIG isn't, then take $(PYTHON)-config as if it was the user
273# supplied value for PYTHON_CONFIG. Because it's "user supplied", error out if it doesn't exist.
274ifdef PYTHON
275  ifndef PYTHON_CONFIG
276    PYTHON_CONFIG_AUTO := $(call get-executable,$(PYTHON)-config)
277    PYTHON_CONFIG := $(if $(PYTHON_CONFIG_AUTO),$(PYTHON_CONFIG_AUTO),\
278                          $(call $(error $(PYTHON)-config not found)))
279  endif
280endif
281
282# Select either auto detected python and python-config or use user supplied values if they are
283# defined. get-executable-or-default fails with an error if the first argument is supplied but
284# doesn't exist.
285override PYTHON_CONFIG := $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON_AUTO))
286override PYTHON := $(call get-executable-or-default,PYTHON,$(subst -config,,$(PYTHON_CONFIG)))
287
288grep-libs  = $(filter -l%,$(1))
289strip-libs  = $(filter-out -l%,$(1))
290
291PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
292
293# Python 3.8 changed the output of `python-config --ldflags` to not include the
294# '-lpythonX.Y' flag unless '--embed' is also passed. The feature check for
295# libpython fails if that flag is not included in LDFLAGS
296ifeq ($(shell $(PYTHON_CONFIG_SQ) --ldflags --embed 2>&1 1>/dev/null; echo $$?), 0)
297  PYTHON_CONFIG_LDFLAGS := --ldflags --embed
298else
299  PYTHON_CONFIG_LDFLAGS := --ldflags
300endif
301
302ifdef PYTHON_CONFIG
303  PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) $(PYTHON_CONFIG_LDFLAGS) 2>/dev/null)
304  PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
305  PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
306  PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null)
307  FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
308  ifeq ($(CC_NO_CLANG), 0)
309    PYTHON_EMBED_CCOPTS := $(filter-out -ffat-lto-objects, $(PYTHON_EMBED_CCOPTS))
310  endif
311endif
312
313FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
314FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
315
316FEATURE_CHECK_LDFLAGS-libaio = -lrt
317
318FEATURE_CHECK_LDFLAGS-disassembler-four-args = -lbfd -lopcodes -ldl
319FEATURE_CHECK_LDFLAGS-disassembler-init-styled = -lbfd -lopcodes -ldl
320
321CORE_CFLAGS += -fno-omit-frame-pointer
322CORE_CFLAGS += -ggdb3
323CORE_CFLAGS += -funwind-tables
324CORE_CFLAGS += -Wall
325CORE_CFLAGS += -Wextra
326CORE_CFLAGS += -std=gnu11
327
328CXXFLAGS += -std=gnu++14 -fno-exceptions -fno-rtti
329CXXFLAGS += -Wall
330CXXFLAGS += -fno-omit-frame-pointer
331CXXFLAGS += -ggdb3
332CXXFLAGS += -funwind-tables
333CXXFLAGS += -Wno-strict-aliasing
334
335HOSTCFLAGS += -Wall
336HOSTCFLAGS += -Wextra
337
338# Enforce a non-executable stack, as we may regress (again) in the future by
339# adding assembler files missing the .GNU-stack linker note.
340LDFLAGS += -Wl,-z,noexecstack
341
342EXTLIBS = -lpthread -lrt -lm -ldl
343
344ifneq ($(TCMALLOC),)
345  CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free
346  EXTLIBS += -ltcmalloc
347endif
348
349ifeq ($(FEATURES_DUMP),)
350# We will display at the end of this Makefile.config, using $(call feature_display_entries)
351# As we may retry some feature detection here, see the disassembler-four-args case, for instance
352  FEATURE_DISPLAY_DEFERRED := 1
353include $(srctree)/tools/build/Makefile.feature
354else
355include $(FEATURES_DUMP)
356endif
357
358ifeq ($(feature-stackprotector-all), 1)
359  CORE_CFLAGS += -fstack-protector-all
360endif
361
362ifeq ($(DEBUG),0)
363  ifeq ($(feature-fortify-source), 1)
364    CORE_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
365  endif
366endif
367
368INC_FLAGS += -I$(src-perf)/util/include
369INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
370INC_FLAGS += -I$(srctree)/tools/include/
371INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
372INC_FLAGS += -I$(srctree)/tools/include/uapi
373INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
374INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
375
376# $(obj-perf)      for generated common-cmds.h
377# $(obj-perf)/util for generated bison/flex headers
378ifneq ($(OUTPUT),)
379INC_FLAGS += -I$(obj-perf)/util
380INC_FLAGS += -I$(obj-perf)
381endif
382
383INC_FLAGS += -I$(src-perf)/util
384INC_FLAGS += -I$(src-perf)
385
386CORE_CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
387
388CFLAGS   += $(CORE_CFLAGS) $(INC_FLAGS)
389CXXFLAGS += $(INC_FLAGS)
390
391LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS)
392
393ifeq ($(feature-pthread-attr-setaffinity-np), 1)
394  CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
395endif
396
397ifeq ($(feature-pthread-barrier), 1)
398  CFLAGS += -DHAVE_PTHREAD_BARRIER
399endif
400
401ifndef NO_BIONIC
402  $(call feature_check,bionic)
403  ifeq ($(feature-bionic), 1)
404    BIONIC := 1
405    CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE
406    CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE
407    EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
408    EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
409  endif
410endif
411
412ifeq ($(feature-eventfd), 1)
413  CFLAGS += -DHAVE_EVENTFD_SUPPORT
414endif
415
416ifeq ($(feature-get_current_dir_name), 1)
417  CFLAGS += -DHAVE_GET_CURRENT_DIR_NAME
418endif
419
420ifeq ($(feature-gettid), 1)
421  CFLAGS += -DHAVE_GETTID
422endif
423
424ifeq ($(feature-file-handle), 1)
425  CFLAGS += -DHAVE_FILE_HANDLE
426endif
427
428ifdef NO_LIBELF
429  NO_DWARF := 1
430  NO_LIBUNWIND := 1
431  NO_LIBDW_DWARF_UNWIND := 1
432  NO_LIBBPF := 1
433  NO_JVMTI := 1
434else
435  ifeq ($(feature-libelf), 0)
436    ifeq ($(feature-glibc), 1)
437      LIBC_SUPPORT := 1
438    endif
439    ifeq ($(BIONIC),1)
440      LIBC_SUPPORT := 1
441    endif
442    ifeq ($(LIBC_SUPPORT),1)
443      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.)
444    else
445      ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
446        ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
447          msg := $(error No libasan found, please install libasan);
448        endif
449      endif
450
451      ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
452        ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
453          msg := $(error No libubsan found, please install libubsan);
454        endif
455      endif
456
457      ifneq ($(filter s% -static%,$(LDFLAGS),),)
458        msg := $(error No static glibc found, please install glibc-static);
459      else
460        msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
461      endif
462    endif
463  else
464    ifndef NO_LIBDW_DWARF_UNWIND
465      ifneq ($(feature-libdw-dwarf-unwind),1)
466        NO_LIBDW_DWARF_UNWIND := 1
467        msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
468      endif
469    endif
470    ifneq ($(feature-dwarf), 1)
471      ifndef NO_DWARF
472        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);
473        NO_DWARF := 1
474      endif
475    else
476      ifneq ($(feature-dwarf_getlocations), 1)
477        msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
478      else
479        CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
480      endif # dwarf_getlocations
481    endif # Dwarf support
482  endif # libelf support
483endif # NO_LIBELF
484
485ifeq ($(feature-libaio), 1)
486  ifndef NO_AIO
487    CFLAGS += -DHAVE_AIO_SUPPORT
488  endif
489endif
490
491ifdef NO_DWARF
492  NO_LIBDW_DWARF_UNWIND := 1
493endif
494
495ifeq ($(feature-scandirat), 1)
496  CFLAGS += -DHAVE_SCANDIRAT_SUPPORT
497endif
498
499ifeq ($(feature-sched_getcpu), 1)
500  CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
501endif
502
503ifeq ($(feature-setns), 1)
504  CFLAGS += -DHAVE_SETNS_SUPPORT
505  $(call detected,CONFIG_SETNS)
506endif
507
508ifdef CORESIGHT
509  $(call feature_check,libopencsd)
510  ifeq ($(feature-libopencsd), 1)
511    CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
512    ifeq ($(feature-reallocarray), 0)
513      CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
514    endif
515    LDFLAGS += $(LIBOPENCSD_LDFLAGS)
516    EXTLIBS += $(OPENCSDLIBS)
517    $(call detected,CONFIG_LIBOPENCSD)
518    ifdef CSTRACE_RAW
519      CFLAGS += -DCS_DEBUG_RAW
520      ifeq (${CSTRACE_RAW}, packed)
521        CFLAGS += -DCS_RAW_PACKED
522      endif
523    endif
524  else
525    dummy := $(error Error: No libopencsd library found or the version is not up-to-date. Please install recent libopencsd to build with CORESIGHT=1)
526  endif
527endif
528
529ifndef NO_LIBELF
530  CFLAGS += -DHAVE_LIBELF_SUPPORT
531  EXTLIBS += -lelf
532  $(call detected,CONFIG_LIBELF)
533
534  ifeq ($(feature-libelf-getphdrnum), 1)
535    CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
536  endif
537
538  ifeq ($(feature-libelf-gelf_getnote), 1)
539    CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
540  else
541    msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
542  endif
543
544  ifeq ($(feature-libelf-getshdrstrndx), 1)
545    CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
546  endif
547
548  ifndef NO_LIBDEBUGINFOD
549    $(call feature_check,libdebuginfod)
550    ifeq ($(feature-libdebuginfod), 1)
551      CFLAGS += -DHAVE_DEBUGINFOD_SUPPORT
552      EXTLIBS += -ldebuginfod
553    endif
554  endif
555
556  ifndef NO_DWARF
557    ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
558      msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
559      NO_DWARF := 1
560    else
561      CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
562      LDFLAGS += $(LIBDW_LDFLAGS)
563      EXTLIBS += ${DWARFLIBS}
564      $(call detected,CONFIG_DWARF)
565    endif # PERF_HAVE_DWARF_REGS
566  endif # NO_DWARF
567
568  ifndef NO_LIBBPF
569    ifeq ($(feature-bpf), 1)
570      CFLAGS += -DHAVE_LIBBPF_SUPPORT
571      $(call detected,CONFIG_LIBBPF)
572
573      # detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
574      $(call feature_check,libbpf)
575
576      ifdef LIBBPF_DYNAMIC
577        ifeq ($(feature-libbpf), 1)
578          EXTLIBS += -lbpf
579          $(call detected,CONFIG_LIBBPF_DYNAMIC)
580        else
581          dummy := $(error Error: No libbpf devel library found or older than v1.0, please install/update libbpf-devel);
582        endif
583      else
584        # Libbpf will be built as a static library from tools/lib/bpf.
585	LIBBPF_STATIC := 1
586      endif
587    endif
588
589    ifndef NO_DWARF
590      ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
591        CFLAGS += -DHAVE_BPF_PROLOGUE
592        $(call detected,CONFIG_BPF_PROLOGUE)
593      else
594        msg := $(warning BPF prologue is not supported by architecture $(SRCARCH), missing regs_query_register_offset());
595      endif
596    else
597      msg := $(warning DWARF support is off, BPF prologue is disabled);
598    endif
599
600  endif # NO_LIBBPF
601endif # NO_LIBELF
602
603ifndef NO_SDT
604  ifneq ($(feature-sdt), 1)
605    msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
606    NO_SDT := 1;
607  else
608    CFLAGS += -DHAVE_SDT_EVENT
609    $(call detected,CONFIG_SDT_EVENT)
610  endif
611endif
612
613ifdef PERF_HAVE_JITDUMP
614  ifndef NO_LIBELF
615    $(call detected,CONFIG_JITDUMP)
616    CFLAGS += -DHAVE_JITDUMP
617  endif
618endif
619
620ifeq ($(SRCARCH),powerpc)
621  ifndef NO_DWARF
622    CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
623  endif
624endif
625
626ifndef NO_LIBUNWIND
627  have_libunwind :=
628
629  $(call feature_check,libunwind-x86)
630  ifeq ($(feature-libunwind-x86), 1)
631    $(call detected,CONFIG_LIBUNWIND_X86)
632    CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
633    LDFLAGS += -lunwind-x86
634    EXTLIBS_LIBUNWIND += -lunwind-x86
635    have_libunwind = 1
636  endif
637
638  $(call feature_check,libunwind-aarch64)
639  ifeq ($(feature-libunwind-aarch64), 1)
640    $(call detected,CONFIG_LIBUNWIND_AARCH64)
641    CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
642    LDFLAGS += -lunwind-aarch64
643    EXTLIBS_LIBUNWIND += -lunwind-aarch64
644    have_libunwind = 1
645    $(call feature_check,libunwind-debug-frame-aarch64)
646    ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
647      msg := $(warning No debug_frame support found in libunwind-aarch64);
648      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
649    endif
650  endif
651
652  ifneq ($(feature-libunwind), 1)
653    msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
654    NO_LOCAL_LIBUNWIND := 1
655  else
656    have_libunwind := 1
657    $(call detected,CONFIG_LOCAL_LIBUNWIND)
658  endif
659
660  ifneq ($(have_libunwind), 1)
661    NO_LIBUNWIND := 1
662  endif
663else
664  NO_LOCAL_LIBUNWIND := 1
665endif
666
667ifndef NO_LIBBPF
668  ifneq ($(feature-bpf), 1)
669    msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
670    NO_LIBBPF := 1
671  endif
672endif
673
674ifdef BUILD_BPF_SKEL
675  $(call feature_check,clang-bpf-co-re)
676  ifeq ($(feature-clang-bpf-co-re), 0)
677    dummy := $(error Error: clang too old/not installed. Please install recent clang to build with BUILD_BPF_SKEL)
678  endif
679  ifeq ($(filter -DHAVE_LIBBPF_SUPPORT, $(CFLAGS)),)
680    dummy := $(error Error: BPF skeleton support requires libbpf)
681  endif
682  $(call detected,CONFIG_PERF_BPF_SKEL)
683  CFLAGS += -DHAVE_BPF_SKEL
684endif
685
686ifndef GEN_VMLINUX_H
687  VMLINUX_H=$(src-perf)/util/bpf_skel/vmlinux/vmlinux.h
688endif
689
690dwarf-post-unwind := 1
691dwarf-post-unwind-text := BUG
692
693# setup DWARF post unwinder
694ifdef NO_LIBUNWIND
695  ifdef NO_LIBDW_DWARF_UNWIND
696    msg := $(warning Disabling post unwind, no support found.);
697    dwarf-post-unwind := 0
698  else
699    dwarf-post-unwind-text := libdw
700    $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
701  endif
702else
703  dwarf-post-unwind-text := libunwind
704  $(call detected,CONFIG_LIBUNWIND)
705  # Enable libunwind support by default.
706  ifndef NO_LIBDW_DWARF_UNWIND
707    NO_LIBDW_DWARF_UNWIND := 1
708  endif
709endif
710
711ifeq ($(dwarf-post-unwind),1)
712  CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
713  $(call detected,CONFIG_DWARF_UNWIND)
714else
715  NO_DWARF_UNWIND := 1
716endif
717
718ifndef NO_LOCAL_LIBUNWIND
719  ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
720    $(call feature_check,libunwind-debug-frame)
721    ifneq ($(feature-libunwind-debug-frame), 1)
722      msg := $(warning No debug_frame support found in libunwind);
723      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
724    endif
725  else
726    # non-ARM has no dwarf_find_debug_frame() function:
727    CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
728  endif
729  EXTLIBS += $(LIBUNWIND_LIBS)
730  LDFLAGS += $(LIBUNWIND_LIBS)
731endif
732ifeq ($(findstring -static,${LDFLAGS}),-static)
733  # gcc -static links libgcc_eh which contans piece of libunwind
734  LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
735endif
736
737ifndef NO_LIBUNWIND
738  CFLAGS  += -DHAVE_LIBUNWIND_SUPPORT
739  CFLAGS  += $(LIBUNWIND_CFLAGS)
740  LDFLAGS += $(LIBUNWIND_LDFLAGS)
741  EXTLIBS += $(EXTLIBS_LIBUNWIND)
742endif
743
744ifneq ($(NO_LIBTRACEEVENT),1)
745  ifeq ($(NO_SYSCALL_TABLE),0)
746    $(call detected,CONFIG_TRACE)
747  else
748    ifndef NO_LIBAUDIT
749      $(call feature_check,libaudit)
750      ifneq ($(feature-libaudit), 1)
751        msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
752        NO_LIBAUDIT := 1
753      else
754        CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
755        EXTLIBS += -laudit
756        $(call detected,CONFIG_TRACE)
757      endif
758    endif
759  endif
760endif
761
762ifndef NO_LIBCRYPTO
763  ifneq ($(feature-libcrypto), 1)
764    msg := $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev);
765    NO_LIBCRYPTO := 1
766  else
767    CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
768    EXTLIBS += -lcrypto
769    $(call detected,CONFIG_CRYPTO)
770  endif
771endif
772
773ifndef NO_SLANG
774  ifneq ($(feature-libslang), 1)
775    ifneq ($(feature-libslang-include-subdir), 1)
776      msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
777      NO_SLANG := 1
778    else
779      CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
780    endif
781  endif
782  ifndef NO_SLANG
783    # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
784    CFLAGS += -DHAVE_SLANG_SUPPORT
785    EXTLIBS += -lslang
786    $(call detected,CONFIG_SLANG)
787  endif
788endif
789
790ifdef GTK2
791  FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
792  $(call feature_check,gtk2)
793  ifneq ($(feature-gtk2), 1)
794    msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
795    NO_GTK2 := 1
796  else
797    $(call feature_check,gtk2-infobar)
798    ifeq ($(feature-gtk2-infobar), 1)
799      GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
800    endif
801    CFLAGS += -DHAVE_GTK2_SUPPORT
802    GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
803    GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
804    EXTLIBS += -ldl
805  endif
806endif
807
808ifdef NO_LIBPERL
809  CFLAGS += -DNO_LIBPERL
810else
811  PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
812  PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
813  PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
814  PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
815  PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
816  PERL_EMBED_CCOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
817  PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
818  FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
819
820  ifneq ($(feature-libperl), 1)
821    CFLAGS += -DNO_LIBPERL
822    NO_LIBPERL := 1
823    msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
824  else
825    LDFLAGS += $(PERL_EMBED_LDFLAGS)
826    EXTLIBS += $(PERL_EMBED_LIBADD)
827    CFLAGS += -DHAVE_LIBPERL_SUPPORT
828    ifeq ($(CC_NO_CLANG), 0)
829      CFLAGS += -Wno-compound-token-split-by-macro
830    endif
831    $(call detected,CONFIG_LIBPERL)
832  endif
833endif
834
835ifeq ($(feature-timerfd), 1)
836  CFLAGS += -DHAVE_TIMERFD_SUPPORT
837else
838  msg := $(warning No timerfd support. Disables 'perf kvm stat live');
839endif
840
841disable-python = $(eval $(disable-python_code))
842define disable-python_code
843  CFLAGS += -DNO_LIBPYTHON
844  $(warning $1)
845  NO_LIBPYTHON := 1
846endef
847
848PYTHON_EXTENSION_SUFFIX := '.so'
849ifdef NO_LIBPYTHON
850  $(call disable-python,Python support disabled by user)
851else
852
853  ifndef PYTHON
854    $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
855  else
856    PYTHON_WORD := $(call shell-wordify,$(PYTHON))
857
858    ifndef PYTHON_CONFIG
859      $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
860    else
861
862      ifneq ($(feature-libpython), 1)
863        $(call disable-python,No 'Python.h' was found: disables Python support - please install python-devel/python-dev)
864      else
865         LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
866         EXTLIBS += $(PYTHON_EMBED_LIBADD)
867         PYTHON_SETUPTOOLS_INSTALLED := $(shell $(PYTHON) -c 'import setuptools;' 2> /dev/null && echo "yes" || echo "no")
868         ifeq ($(PYTHON_SETUPTOOLS_INSTALLED), yes)
869           PYTHON_EXTENSION_SUFFIX := $(shell $(PYTHON) -c 'from importlib import machinery; print(machinery.EXTENSION_SUFFIXES[0])')
870           LANG_BINDINGS += $(obj-perf)python/perf$(PYTHON_EXTENSION_SUFFIX)
871	 else
872           msg := $(warning Missing python setuptools, the python binding won't be built, please install python3-setuptools or equivalent);
873         endif
874         CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
875         $(call detected,CONFIG_LIBPYTHON)
876      endif
877    endif
878  endif
879endif
880
881ifneq ($(NO_JEVENTS),1)
882  ifeq ($(wildcard pmu-events/arch/$(SRCARCH)/mapfile.csv),)
883    NO_JEVENTS := 1
884  endif
885endif
886ifneq ($(NO_JEVENTS),1)
887  NO_JEVENTS := 0
888  ifndef PYTHON
889    $(error ERROR: No python interpreter needed for jevents generation. Install python or build with NO_JEVENTS=1.)
890  else
891    # jevents.py uses f-strings present in Python 3.6 released in Dec. 2016.
892    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)
893    ifneq ($(JEVENTS_PYTHON_GOOD), 1)
894      $(error ERROR: Python interpreter needed for jevents generation too old (older than 3.6). Install a newer python or build with NO_JEVENTS=1.)
895    endif
896  endif
897endif
898
899ifdef BUILD_NONDISTRO
900  ifeq ($(feature-libbfd), 1)
901    EXTLIBS += -lbfd -lopcodes
902  else
903    # we are on a system that requires -liberty and (maybe) -lz
904    # to link against -lbfd; test each case individually here
905
906    # call all detections now so we get correct
907    # status in VF output
908    $(call feature_check,libbfd-liberty)
909    $(call feature_check,libbfd-liberty-z)
910
911    ifeq ($(feature-libbfd-liberty), 1)
912      EXTLIBS += -lbfd -lopcodes -liberty
913      FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl
914      FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -ldl
915    else
916      ifeq ($(feature-libbfd-liberty-z), 1)
917        EXTLIBS += -lbfd -lopcodes -liberty -lz
918        FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl
919        FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -lz -ldl
920      endif
921    endif
922    $(call feature_check,disassembler-four-args)
923    $(call feature_check,disassembler-init-styled)
924  endif
925
926  CFLAGS += -DHAVE_LIBBFD_SUPPORT
927  CXXFLAGS += -DHAVE_LIBBFD_SUPPORT
928  ifeq ($(feature-libbfd-buildid), 1)
929    CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
930  else
931    msg := $(warning Old version of libbfd/binutils things like PE executable profiling will not be available);
932  endif
933endif
934
935ifndef NO_DEMANGLE
936  $(call feature_check,cxa-demangle)
937  ifeq ($(feature-cxa-demangle), 1)
938    EXTLIBS += -lstdc++
939    CFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT
940    CXXFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT
941    $(call detected,CONFIG_CXX_DEMANGLE)
942  endif
943  ifdef BUILD_NONDISTRO
944    ifeq ($(filter -liberty,$(EXTLIBS)),)
945      $(call feature_check,cplus-demangle)
946      ifeq ($(feature-cplus-demangle), 1)
947        EXTLIBS += -liberty
948      endif
949    endif
950    ifneq ($(filter -liberty,$(EXTLIBS)),)
951      CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
952      CXXFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
953    endif
954  endif
955endif
956
957ifndef NO_ZLIB
958  ifeq ($(feature-zlib), 1)
959    CFLAGS += -DHAVE_ZLIB_SUPPORT
960    EXTLIBS += -lz
961    $(call detected,CONFIG_ZLIB)
962  else
963    NO_ZLIB := 1
964  endif
965endif
966
967ifndef NO_LZMA
968  ifeq ($(feature-lzma), 1)
969    CFLAGS += -DHAVE_LZMA_SUPPORT
970    EXTLIBS += -llzma
971    $(call detected,CONFIG_LZMA)
972  else
973    msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
974    NO_LZMA := 1
975  endif
976endif
977
978ifndef NO_LIBZSTD
979  ifeq ($(feature-libzstd), 1)
980    CFLAGS += -DHAVE_ZSTD_SUPPORT
981    CFLAGS += $(LIBZSTD_CFLAGS)
982    LDFLAGS += $(LIBZSTD_LDFLAGS)
983    EXTLIBS += -lzstd
984    $(call detected,CONFIG_ZSTD)
985  else
986    msg := $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR);
987    NO_LIBZSTD := 1
988  endif
989endif
990
991ifndef NO_LIBCAP
992  ifeq ($(feature-libcap), 1)
993    CFLAGS += -DHAVE_LIBCAP_SUPPORT
994    EXTLIBS += -lcap
995    $(call detected,CONFIG_LIBCAP)
996  else
997    msg := $(warning No libcap found, disables capability support, please install libcap-devel/libcap-dev);
998    NO_LIBCAP := 1
999  endif
1000endif
1001
1002ifndef NO_BACKTRACE
1003  ifeq ($(feature-backtrace), 1)
1004    CFLAGS += -DHAVE_BACKTRACE_SUPPORT
1005  endif
1006endif
1007
1008ifndef NO_LIBNUMA
1009  ifeq ($(feature-libnuma), 0)
1010    msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
1011    NO_LIBNUMA := 1
1012  else
1013    ifeq ($(feature-numa_num_possible_cpus), 0)
1014      msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
1015      NO_LIBNUMA := 1
1016    else
1017      CFLAGS += -DHAVE_LIBNUMA_SUPPORT
1018      EXTLIBS += -lnuma
1019      $(call detected,CONFIG_NUMA)
1020    endif
1021  endif
1022endif
1023
1024ifdef HAVE_KVM_STAT_SUPPORT
1025    CFLAGS += -DHAVE_KVM_STAT_SUPPORT
1026endif
1027
1028ifeq ($(feature-disassembler-four-args), 1)
1029    CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
1030endif
1031
1032ifeq ($(feature-disassembler-init-styled), 1)
1033    CFLAGS += -DDISASM_INIT_STYLED
1034endif
1035
1036ifeq (${IS_64_BIT}, 1)
1037  ifndef NO_PERF_READ_VDSO32
1038    $(call feature_check,compile-32)
1039    ifeq ($(feature-compile-32), 1)
1040      CFLAGS += -DHAVE_PERF_READ_VDSO32
1041    else
1042      NO_PERF_READ_VDSO32 := 1
1043    endif
1044  endif
1045  ifneq ($(SRCARCH), x86)
1046    NO_PERF_READ_VDSOX32 := 1
1047  endif
1048  ifndef NO_PERF_READ_VDSOX32
1049    $(call feature_check,compile-x32)
1050    ifeq ($(feature-compile-x32), 1)
1051      CFLAGS += -DHAVE_PERF_READ_VDSOX32
1052    else
1053      NO_PERF_READ_VDSOX32 := 1
1054    endif
1055  endif
1056else
1057  NO_PERF_READ_VDSO32 := 1
1058  NO_PERF_READ_VDSOX32 := 1
1059endif
1060
1061ifndef NO_LIBBABELTRACE
1062  $(call feature_check,libbabeltrace)
1063  ifeq ($(feature-libbabeltrace), 1)
1064    CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
1065    LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
1066    EXTLIBS += -lbabeltrace-ctf
1067    $(call detected,CONFIG_LIBBABELTRACE)
1068  else
1069    msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
1070  endif
1071endif
1072
1073ifndef NO_AUXTRACE
1074  ifeq ($(SRCARCH),x86)
1075    ifeq ($(feature-get_cpuid), 0)
1076      msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
1077      NO_AUXTRACE := 1
1078    endif
1079  endif
1080  ifndef NO_AUXTRACE
1081    $(call detected,CONFIG_AUXTRACE)
1082    CFLAGS += -DHAVE_AUXTRACE_SUPPORT
1083    ifeq ($(feature-reallocarray), 0)
1084      CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
1085    endif
1086  endif
1087endif
1088
1089ifdef EXTRA_TESTS
1090    $(call detected,CONFIG_EXTRA_TESTS)
1091    CFLAGS += -DHAVE_EXTRA_TESTS
1092endif
1093
1094ifndef NO_JVMTI
1095  ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
1096    JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
1097  else
1098    ifneq (,$(wildcard /usr/sbin/alternatives))
1099      JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
1100    endif
1101  endif
1102  ifndef JDIR
1103    $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
1104    NO_JVMTI := 1
1105  endif
1106endif
1107
1108ifndef NO_JVMTI
1109  FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
1110  $(call feature_check,jvmti)
1111  ifeq ($(feature-jvmti), 1)
1112    $(call detected_var,JDIR)
1113    ifndef NO_JVMTI_CMLR
1114      FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
1115      $(call feature_check,jvmti-cmlr)
1116      ifeq ($(feature-jvmti-cmlr), 1)
1117        CFLAGS += -DHAVE_JVMTI_CMLR
1118      endif
1119    endif # NO_JVMTI_CMLR
1120  else
1121    $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
1122    NO_JVMTI := 1
1123  endif
1124endif
1125
1126USE_CXX = 0
1127USE_CLANGLLVM = 0
1128ifdef LIBCLANGLLVM
1129  $(call feature_check,cxx)
1130  ifneq ($(feature-cxx), 1)
1131    msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
1132  else
1133    $(call feature_check,llvm)
1134    $(call feature_check,llvm-version)
1135    ifneq ($(feature-llvm), 1)
1136      msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
1137    else
1138      $(call feature_check,clang)
1139      ifneq ($(feature-clang), 1)
1140        msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
1141      else
1142        CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
1143        CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
1144        $(call detected,CONFIG_CXX)
1145        $(call detected,CONFIG_CLANGLLVM)
1146	USE_CXX = 1
1147	USE_LLVM = 1
1148	USE_CLANG = 1
1149        ifneq ($(feature-llvm-version),1)
1150          msg := $(warning This version of LLVM is not tested. May cause build errors)
1151        endif
1152      endif
1153    endif
1154  endif
1155endif
1156
1157ifndef NO_LIBPFM4
1158  $(call feature_check,libpfm4)
1159  ifeq ($(feature-libpfm4), 1)
1160    CFLAGS += -DHAVE_LIBPFM
1161    EXTLIBS += -lpfm
1162    ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
1163    $(call detected,CONFIG_LIBPFM4)
1164  else
1165    msg := $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev);
1166  endif
1167endif
1168
1169# libtraceevent is a recommended dependency picked up from the system.
1170ifneq ($(NO_LIBTRACEEVENT),1)
1171  $(call feature_check,libtraceevent)
1172  ifeq ($(feature-libtraceevent), 1)
1173    CFLAGS += -DHAVE_LIBTRACEEVENT
1174    EXTLIBS += -ltraceevent
1175    LIBTRACEEVENT_VERSION := $(shell $(PKG_CONFIG) --modversion libtraceevent)
1176    LIBTRACEEVENT_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1177    LIBTRACEEVENT_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1178    LIBTRACEEVENT_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1179    LIBTRACEEVENT_VERSION_CPP := $(shell expr $(LIBTRACEEVENT_VERSION_1) \* 255 \* 255 + $(LIBTRACEEVENT_VERSION_2) \* 255 + $(LIBTRACEEVENT_VERSION_3))
1180    CFLAGS += -DLIBTRACEEVENT_VERSION=$(LIBTRACEEVENT_VERSION_CPP)
1181    $(call detected,CONFIG_LIBTRACEEVENT)
1182  else
1183    dummy := $(error ERROR: libtraceevent is missing. Please install libtraceevent-dev/libtraceevent-devel or build with NO_LIBTRACEEVENT=1)
1184  endif
1185
1186  $(call feature_check,libtracefs)
1187  ifeq ($(feature-libtracefs), 1)
1188    EXTLIBS += -ltracefs
1189    LIBTRACEFS_VERSION := $(shell $(PKG_CONFIG) --modversion libtracefs)
1190    LIBTRACEFS_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEFS_VERSION)))
1191    LIBTRACEFS_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEFS_VERSION)))
1192    LIBTRACEFS_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEFS_VERSION)))
1193    LIBTRACEFS_VERSION_CPP := $(shell expr $(LIBTRACEFS_VERSION_1) \* 255 \* 255 + $(LIBTRACEFS_VERSION_2) \* 255 + $(LIBTRACEFS_VERSION_3))
1194    CFLAGS += -DLIBTRACEFS_VERSION=$(LIBTRACEFS_VERSION_CPP)
1195  endif
1196endif
1197
1198# Among the variables below, these:
1199#   perfexecdir
1200#   libbpf_include_dir
1201#   perf_examples_dir
1202#   template_dir
1203#   mandir
1204#   infodir
1205#   htmldir
1206#   ETC_PERFCONFIG (but not sysconfdir)
1207# can be specified as a relative path some/where/else;
1208# this is interpreted as relative to $(prefix) and "perf" at
1209# runtime figures out where they are based on the path to the executable.
1210# This can help installing the suite in a relocatable way.
1211
1212# Make the path relative to DESTDIR, not to prefix
1213ifndef DESTDIR
1214prefix ?= $(HOME)
1215endif
1216bindir_relative = bin
1217bindir = $(abspath $(prefix)/$(bindir_relative))
1218includedir_relative = include
1219includedir = $(abspath $(prefix)/$(includedir_relative))
1220mandir = share/man
1221infodir = share/info
1222perfexecdir = libexec/perf-core
1223# FIXME: system's libbpf header directory, where we expect to find bpf/bpf_helpers.h, for instance
1224libbpf_include_dir = /usr/include
1225perf_examples_dir = lib/perf/examples
1226sharedir = $(prefix)/share
1227template_dir = share/perf-core/templates
1228STRACE_GROUPS_DIR = share/perf-core/strace/groups
1229htmldir = share/doc/perf-doc
1230tipdir = share/doc/perf-tip
1231srcdir = $(srctree)/tools/perf
1232ifeq ($(prefix),/usr)
1233sysconfdir = /etc
1234ETC_PERFCONFIG = $(sysconfdir)/perfconfig
1235else
1236sysconfdir = $(prefix)/etc
1237ETC_PERFCONFIG = etc/perfconfig
1238endif
1239ifndef lib
1240ifeq ($(SRCARCH)$(IS_64_BIT), x861)
1241lib = lib64
1242else
1243lib = lib
1244endif
1245endif # lib
1246libdir = $(prefix)/$(lib)
1247
1248# Shell quote (do not use $(call) to accommodate ancient setups);
1249ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
1250STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
1251DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
1252bindir_SQ = $(subst ','\'',$(bindir))
1253includedir_SQ = $(subst ','\'',$(includedir))
1254mandir_SQ = $(subst ','\'',$(mandir))
1255infodir_SQ = $(subst ','\'',$(infodir))
1256perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
1257libbpf_include_dir_SQ = $(subst ','\'',$(libbpf_include_dir))
1258perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
1259template_dir_SQ = $(subst ','\'',$(template_dir))
1260htmldir_SQ = $(subst ','\'',$(htmldir))
1261tipdir_SQ = $(subst ','\'',$(tipdir))
1262prefix_SQ = $(subst ','\'',$(prefix))
1263sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
1264libdir_SQ = $(subst ','\'',$(libdir))
1265srcdir_SQ = $(subst ','\'',$(srcdir))
1266
1267ifneq ($(filter /%,$(firstword $(perfexecdir))),)
1268perfexec_instdir = $(perfexecdir)
1269perf_include_instdir = $(libbpf_include_dir)
1270perf_examples_instdir = $(perf_examples_dir)
1271STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
1272tip_instdir = $(tipdir)
1273else
1274perfexec_instdir = $(prefix)/$(perfexecdir)
1275perf_include_instdir = $(prefix)/$(libbpf_include_dir)
1276perf_examples_instdir = $(prefix)/$(perf_examples_dir)
1277STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
1278tip_instdir = $(prefix)/$(tipdir)
1279endif
1280perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
1281perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
1282perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
1283STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
1284tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
1285
1286export perfexec_instdir_SQ
1287
1288print_var = $(eval $(print_var_code)) $(info $(MSG))
1289define print_var_code
1290    MSG = $(shell printf '...%40s: %s' $(1) $($(1)))
1291endef
1292
1293ifeq ($(feature_display),1)
1294  $(call feature_display_entries)
1295endif
1296
1297ifeq ($(VF),1)
1298  # Display EXTRA features which are detected manualy
1299  # from here with feature_check call and thus cannot
1300  # be partof global state output.
1301  $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),) $(info $(MSG)))
1302  $(call print_var,prefix)
1303  $(call print_var,bindir)
1304  $(call print_var,libdir)
1305  $(call print_var,sysconfdir)
1306  $(call print_var,LIBUNWIND_DIR)
1307  $(call print_var,LIBDW_DIR)
1308  $(call print_var,JDIR)
1309
1310  ifeq ($(dwarf-post-unwind),1)
1311    $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text)) $(info $(MSG))
1312  endif
1313endif
1314
1315$(info )
1316
1317$(call detected_var,bindir_SQ)
1318$(call detected_var,PYTHON_WORD)
1319ifneq ($(OUTPUT),)
1320$(call detected_var,OUTPUT)
1321endif
1322$(call detected_var,htmldir_SQ)
1323$(call detected_var,infodir_SQ)
1324$(call detected_var,mandir_SQ)
1325$(call detected_var,ETC_PERFCONFIG_SQ)
1326$(call detected_var,STRACE_GROUPS_DIR_SQ)
1327$(call detected_var,prefix_SQ)
1328$(call detected_var,perfexecdir_SQ)
1329$(call detected_var,libbpf_include_dir_SQ)
1330$(call detected_var,perf_examples_dir_SQ)
1331$(call detected_var,tipdir_SQ)
1332$(call detected_var,srcdir_SQ)
1333$(call detected_var,LIBDIR)
1334$(call detected_var,GTK_CFLAGS)
1335$(call detected_var,PERL_EMBED_CCOPTS)
1336$(call detected_var,PYTHON_EMBED_CCOPTS)
1337ifneq ($(BISON_FILE_PREFIX_MAP),)
1338$(call detected_var,BISON_FILE_PREFIX_MAP)
1339endif
1340
1341# re-generate FEATURE-DUMP as we may have called feature_check, found out
1342# extra libraries to add to LDFLAGS of some other test and then redo those
1343# tests, see the block about libbfd, disassembler-four-args, for instance.
1344$(shell rm -f $(FEATURE_DUMP_FILENAME))
1345$(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))
1346