xref: /openbmc/linux/tools/perf/Makefile.config (revision cb051977) 
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  endif # NO_LIBBPF
593endif # NO_LIBELF
594
595ifndef NO_SDT
596  ifneq ($(feature-sdt), 1)
597    msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
598    NO_SDT := 1;
599  else
600    CFLAGS += -DHAVE_SDT_EVENT
601    $(call detected,CONFIG_SDT_EVENT)
602  endif
603endif
604
605ifdef PERF_HAVE_JITDUMP
606  ifndef NO_LIBELF
607    $(call detected,CONFIG_JITDUMP)
608    CFLAGS += -DHAVE_JITDUMP
609  endif
610endif
611
612ifeq ($(SRCARCH),powerpc)
613  ifndef NO_DWARF
614    CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
615  endif
616endif
617
618ifndef NO_LIBUNWIND
619  have_libunwind :=
620
621  $(call feature_check,libunwind-x86)
622  ifeq ($(feature-libunwind-x86), 1)
623    $(call detected,CONFIG_LIBUNWIND_X86)
624    CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
625    LDFLAGS += -lunwind-x86
626    EXTLIBS_LIBUNWIND += -lunwind-x86
627    have_libunwind = 1
628  endif
629
630  $(call feature_check,libunwind-aarch64)
631  ifeq ($(feature-libunwind-aarch64), 1)
632    $(call detected,CONFIG_LIBUNWIND_AARCH64)
633    CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
634    LDFLAGS += -lunwind-aarch64
635    EXTLIBS_LIBUNWIND += -lunwind-aarch64
636    have_libunwind = 1
637    $(call feature_check,libunwind-debug-frame-aarch64)
638    ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
639      msg := $(warning No debug_frame support found in libunwind-aarch64);
640      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
641    endif
642  endif
643
644  ifneq ($(feature-libunwind), 1)
645    msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
646    NO_LOCAL_LIBUNWIND := 1
647  else
648    have_libunwind := 1
649    $(call detected,CONFIG_LOCAL_LIBUNWIND)
650  endif
651
652  ifneq ($(have_libunwind), 1)
653    NO_LIBUNWIND := 1
654  endif
655else
656  NO_LOCAL_LIBUNWIND := 1
657endif
658
659ifndef NO_LIBBPF
660  ifneq ($(feature-bpf), 1)
661    msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
662    NO_LIBBPF := 1
663  endif
664endif
665
666ifdef BUILD_BPF_SKEL
667  $(call feature_check,clang-bpf-co-re)
668  ifeq ($(feature-clang-bpf-co-re), 0)
669    dummy := $(error Error: clang too old/not installed. Please install recent clang to build with BUILD_BPF_SKEL)
670  endif
671  ifeq ($(filter -DHAVE_LIBBPF_SUPPORT, $(CFLAGS)),)
672    dummy := $(error Error: BPF skeleton support requires libbpf)
673  endif
674  $(call detected,CONFIG_PERF_BPF_SKEL)
675  CFLAGS += -DHAVE_BPF_SKEL
676endif
677
678ifndef GEN_VMLINUX_H
679  VMLINUX_H=$(src-perf)/util/bpf_skel/vmlinux/vmlinux.h
680endif
681
682dwarf-post-unwind := 1
683dwarf-post-unwind-text := BUG
684
685# setup DWARF post unwinder
686ifdef NO_LIBUNWIND
687  ifdef NO_LIBDW_DWARF_UNWIND
688    msg := $(warning Disabling post unwind, no support found.);
689    dwarf-post-unwind := 0
690  else
691    dwarf-post-unwind-text := libdw
692    $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
693  endif
694else
695  dwarf-post-unwind-text := libunwind
696  $(call detected,CONFIG_LIBUNWIND)
697  # Enable libunwind support by default.
698  ifndef NO_LIBDW_DWARF_UNWIND
699    NO_LIBDW_DWARF_UNWIND := 1
700  endif
701endif
702
703ifeq ($(dwarf-post-unwind),1)
704  CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
705  $(call detected,CONFIG_DWARF_UNWIND)
706else
707  NO_DWARF_UNWIND := 1
708endif
709
710ifndef NO_LOCAL_LIBUNWIND
711  ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
712    $(call feature_check,libunwind-debug-frame)
713    ifneq ($(feature-libunwind-debug-frame), 1)
714      msg := $(warning No debug_frame support found in libunwind);
715      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
716    endif
717  else
718    # non-ARM has no dwarf_find_debug_frame() function:
719    CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
720  endif
721  EXTLIBS += $(LIBUNWIND_LIBS)
722  LDFLAGS += $(LIBUNWIND_LIBS)
723endif
724ifeq ($(findstring -static,${LDFLAGS}),-static)
725  # gcc -static links libgcc_eh which contans piece of libunwind
726  LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
727endif
728
729ifndef NO_LIBUNWIND
730  CFLAGS  += -DHAVE_LIBUNWIND_SUPPORT
731  CFLAGS  += $(LIBUNWIND_CFLAGS)
732  LDFLAGS += $(LIBUNWIND_LDFLAGS)
733  EXTLIBS += $(EXTLIBS_LIBUNWIND)
734endif
735
736ifneq ($(NO_LIBTRACEEVENT),1)
737  ifeq ($(NO_SYSCALL_TABLE),0)
738    $(call detected,CONFIG_TRACE)
739  else
740    ifndef NO_LIBAUDIT
741      $(call feature_check,libaudit)
742      ifneq ($(feature-libaudit), 1)
743        msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
744        NO_LIBAUDIT := 1
745      else
746        CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
747        EXTLIBS += -laudit
748        $(call detected,CONFIG_TRACE)
749      endif
750    endif
751  endif
752endif
753
754ifndef NO_LIBCRYPTO
755  ifneq ($(feature-libcrypto), 1)
756    msg := $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev);
757    NO_LIBCRYPTO := 1
758  else
759    CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
760    EXTLIBS += -lcrypto
761    $(call detected,CONFIG_CRYPTO)
762  endif
763endif
764
765ifndef NO_SLANG
766  ifneq ($(feature-libslang), 1)
767    ifneq ($(feature-libslang-include-subdir), 1)
768      msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
769      NO_SLANG := 1
770    else
771      CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
772    endif
773  endif
774  ifndef NO_SLANG
775    # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
776    CFLAGS += -DHAVE_SLANG_SUPPORT
777    EXTLIBS += -lslang
778    $(call detected,CONFIG_SLANG)
779  endif
780endif
781
782ifdef GTK2
783  FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
784  $(call feature_check,gtk2)
785  ifneq ($(feature-gtk2), 1)
786    msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
787    NO_GTK2 := 1
788  else
789    $(call feature_check,gtk2-infobar)
790    ifeq ($(feature-gtk2-infobar), 1)
791      GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
792    endif
793    CFLAGS += -DHAVE_GTK2_SUPPORT
794    GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
795    GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
796    EXTLIBS += -ldl
797  endif
798endif
799
800ifdef NO_LIBPERL
801  CFLAGS += -DNO_LIBPERL
802else
803  PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
804  PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
805  PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
806  PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
807  PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
808  PERL_EMBED_CCOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
809  PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
810  FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
811
812  ifneq ($(feature-libperl), 1)
813    CFLAGS += -DNO_LIBPERL
814    NO_LIBPERL := 1
815    msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
816  else
817    LDFLAGS += $(PERL_EMBED_LDFLAGS)
818    EXTLIBS += $(PERL_EMBED_LIBADD)
819    CFLAGS += -DHAVE_LIBPERL_SUPPORT
820    ifeq ($(CC_NO_CLANG), 0)
821      CFLAGS += -Wno-compound-token-split-by-macro
822    endif
823    $(call detected,CONFIG_LIBPERL)
824  endif
825endif
826
827ifeq ($(feature-timerfd), 1)
828  CFLAGS += -DHAVE_TIMERFD_SUPPORT
829else
830  msg := $(warning No timerfd support. Disables 'perf kvm stat live');
831endif
832
833disable-python = $(eval $(disable-python_code))
834define disable-python_code
835  CFLAGS += -DNO_LIBPYTHON
836  $(warning $1)
837  NO_LIBPYTHON := 1
838endef
839
840PYTHON_EXTENSION_SUFFIX := '.so'
841ifdef NO_LIBPYTHON
842  $(call disable-python,Python support disabled by user)
843else
844
845  ifndef PYTHON
846    $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
847  else
848    PYTHON_WORD := $(call shell-wordify,$(PYTHON))
849
850    ifndef PYTHON_CONFIG
851      $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
852    else
853
854      ifneq ($(feature-libpython), 1)
855        $(call disable-python,No 'Python.h' was found: disables Python support - please install python-devel/python-dev)
856      else
857         LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
858         EXTLIBS += $(PYTHON_EMBED_LIBADD)
859         PYTHON_SETUPTOOLS_INSTALLED := $(shell $(PYTHON) -c 'import setuptools;' 2> /dev/null && echo "yes" || echo "no")
860         ifeq ($(PYTHON_SETUPTOOLS_INSTALLED), yes)
861           PYTHON_EXTENSION_SUFFIX := $(shell $(PYTHON) -c 'from importlib import machinery; print(machinery.EXTENSION_SUFFIXES[0])')
862           LANG_BINDINGS += $(obj-perf)python/perf$(PYTHON_EXTENSION_SUFFIX)
863	 else
864           msg := $(warning Missing python setuptools, the python binding won't be built, please install python3-setuptools or equivalent);
865         endif
866         CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
867         $(call detected,CONFIG_LIBPYTHON)
868      endif
869    endif
870  endif
871endif
872
873ifneq ($(NO_JEVENTS),1)
874  ifeq ($(wildcard pmu-events/arch/$(SRCARCH)/mapfile.csv),)
875    NO_JEVENTS := 1
876  endif
877endif
878ifneq ($(NO_JEVENTS),1)
879  NO_JEVENTS := 0
880  ifndef PYTHON
881    $(error ERROR: No python interpreter needed for jevents generation. Install python or build with NO_JEVENTS=1.)
882  else
883    # jevents.py uses f-strings present in Python 3.6 released in Dec. 2016.
884    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)
885    ifneq ($(JEVENTS_PYTHON_GOOD), 1)
886      $(error ERROR: Python interpreter needed for jevents generation too old (older than 3.6). Install a newer python or build with NO_JEVENTS=1.)
887    endif
888  endif
889endif
890
891ifdef BUILD_NONDISTRO
892  ifeq ($(feature-libbfd), 1)
893    EXTLIBS += -lbfd -lopcodes
894  else
895    # we are on a system that requires -liberty and (maybe) -lz
896    # to link against -lbfd; test each case individually here
897
898    # call all detections now so we get correct
899    # status in VF output
900    $(call feature_check,libbfd-liberty)
901    $(call feature_check,libbfd-liberty-z)
902
903    ifeq ($(feature-libbfd-liberty), 1)
904      EXTLIBS += -lbfd -lopcodes -liberty
905      FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl
906      FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -ldl
907    else
908      ifeq ($(feature-libbfd-liberty-z), 1)
909        EXTLIBS += -lbfd -lopcodes -liberty -lz
910        FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl
911        FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -lz -ldl
912      endif
913    endif
914    $(call feature_check,disassembler-four-args)
915    $(call feature_check,disassembler-init-styled)
916  endif
917
918  CFLAGS += -DHAVE_LIBBFD_SUPPORT
919  CXXFLAGS += -DHAVE_LIBBFD_SUPPORT
920  ifeq ($(feature-libbfd-buildid), 1)
921    CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
922  else
923    msg := $(warning Old version of libbfd/binutils things like PE executable profiling will not be available);
924  endif
925endif
926
927ifndef NO_DEMANGLE
928  $(call feature_check,cxa-demangle)
929  ifeq ($(feature-cxa-demangle), 1)
930    EXTLIBS += -lstdc++
931    CFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT
932    CXXFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT
933    $(call detected,CONFIG_CXX_DEMANGLE)
934  endif
935  ifdef BUILD_NONDISTRO
936    ifeq ($(filter -liberty,$(EXTLIBS)),)
937      $(call feature_check,cplus-demangle)
938      ifeq ($(feature-cplus-demangle), 1)
939        EXTLIBS += -liberty
940      endif
941    endif
942    ifneq ($(filter -liberty,$(EXTLIBS)),)
943      CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
944      CXXFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
945    endif
946  endif
947endif
948
949ifndef NO_ZLIB
950  ifeq ($(feature-zlib), 1)
951    CFLAGS += -DHAVE_ZLIB_SUPPORT
952    EXTLIBS += -lz
953    $(call detected,CONFIG_ZLIB)
954  else
955    NO_ZLIB := 1
956  endif
957endif
958
959ifndef NO_LZMA
960  ifeq ($(feature-lzma), 1)
961    CFLAGS += -DHAVE_LZMA_SUPPORT
962    EXTLIBS += -llzma
963    $(call detected,CONFIG_LZMA)
964  else
965    msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
966    NO_LZMA := 1
967  endif
968endif
969
970ifndef NO_LIBZSTD
971  ifeq ($(feature-libzstd), 1)
972    CFLAGS += -DHAVE_ZSTD_SUPPORT
973    CFLAGS += $(LIBZSTD_CFLAGS)
974    LDFLAGS += $(LIBZSTD_LDFLAGS)
975    EXTLIBS += -lzstd
976    $(call detected,CONFIG_ZSTD)
977  else
978    msg := $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR);
979    NO_LIBZSTD := 1
980  endif
981endif
982
983ifndef NO_LIBCAP
984  ifeq ($(feature-libcap), 1)
985    CFLAGS += -DHAVE_LIBCAP_SUPPORT
986    EXTLIBS += -lcap
987    $(call detected,CONFIG_LIBCAP)
988  else
989    msg := $(warning No libcap found, disables capability support, please install libcap-devel/libcap-dev);
990    NO_LIBCAP := 1
991  endif
992endif
993
994ifndef NO_BACKTRACE
995  ifeq ($(feature-backtrace), 1)
996    CFLAGS += -DHAVE_BACKTRACE_SUPPORT
997  endif
998endif
999
1000ifndef NO_LIBNUMA
1001  ifeq ($(feature-libnuma), 0)
1002    msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
1003    NO_LIBNUMA := 1
1004  else
1005    ifeq ($(feature-numa_num_possible_cpus), 0)
1006      msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
1007      NO_LIBNUMA := 1
1008    else
1009      CFLAGS += -DHAVE_LIBNUMA_SUPPORT
1010      EXTLIBS += -lnuma
1011      $(call detected,CONFIG_NUMA)
1012    endif
1013  endif
1014endif
1015
1016ifdef HAVE_KVM_STAT_SUPPORT
1017    CFLAGS += -DHAVE_KVM_STAT_SUPPORT
1018endif
1019
1020ifeq ($(feature-disassembler-four-args), 1)
1021    CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
1022endif
1023
1024ifeq ($(feature-disassembler-init-styled), 1)
1025    CFLAGS += -DDISASM_INIT_STYLED
1026endif
1027
1028ifeq (${IS_64_BIT}, 1)
1029  ifndef NO_PERF_READ_VDSO32
1030    $(call feature_check,compile-32)
1031    ifeq ($(feature-compile-32), 1)
1032      CFLAGS += -DHAVE_PERF_READ_VDSO32
1033    else
1034      NO_PERF_READ_VDSO32 := 1
1035    endif
1036  endif
1037  ifneq ($(SRCARCH), x86)
1038    NO_PERF_READ_VDSOX32 := 1
1039  endif
1040  ifndef NO_PERF_READ_VDSOX32
1041    $(call feature_check,compile-x32)
1042    ifeq ($(feature-compile-x32), 1)
1043      CFLAGS += -DHAVE_PERF_READ_VDSOX32
1044    else
1045      NO_PERF_READ_VDSOX32 := 1
1046    endif
1047  endif
1048else
1049  NO_PERF_READ_VDSO32 := 1
1050  NO_PERF_READ_VDSOX32 := 1
1051endif
1052
1053ifndef NO_LIBBABELTRACE
1054  $(call feature_check,libbabeltrace)
1055  ifeq ($(feature-libbabeltrace), 1)
1056    CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
1057    LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
1058    EXTLIBS += -lbabeltrace-ctf
1059    $(call detected,CONFIG_LIBBABELTRACE)
1060  else
1061    msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
1062  endif
1063endif
1064
1065ifndef NO_AUXTRACE
1066  ifeq ($(SRCARCH),x86)
1067    ifeq ($(feature-get_cpuid), 0)
1068      msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
1069      NO_AUXTRACE := 1
1070    endif
1071  endif
1072  ifndef NO_AUXTRACE
1073    $(call detected,CONFIG_AUXTRACE)
1074    CFLAGS += -DHAVE_AUXTRACE_SUPPORT
1075    ifeq ($(feature-reallocarray), 0)
1076      CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
1077    endif
1078  endif
1079endif
1080
1081ifdef EXTRA_TESTS
1082    $(call detected,CONFIG_EXTRA_TESTS)
1083    CFLAGS += -DHAVE_EXTRA_TESTS
1084endif
1085
1086ifndef NO_JVMTI
1087  ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
1088    JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
1089  else
1090    ifneq (,$(wildcard /usr/sbin/alternatives))
1091      JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
1092    endif
1093  endif
1094  ifndef JDIR
1095    $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
1096    NO_JVMTI := 1
1097  endif
1098endif
1099
1100ifndef NO_JVMTI
1101  FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
1102  $(call feature_check,jvmti)
1103  ifeq ($(feature-jvmti), 1)
1104    $(call detected_var,JDIR)
1105    ifndef NO_JVMTI_CMLR
1106      FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
1107      $(call feature_check,jvmti-cmlr)
1108      ifeq ($(feature-jvmti-cmlr), 1)
1109        CFLAGS += -DHAVE_JVMTI_CMLR
1110      endif
1111    endif # NO_JVMTI_CMLR
1112  else
1113    $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
1114    NO_JVMTI := 1
1115  endif
1116endif
1117
1118ifndef NO_LIBPFM4
1119  $(call feature_check,libpfm4)
1120  ifeq ($(feature-libpfm4), 1)
1121    CFLAGS += -DHAVE_LIBPFM
1122    EXTLIBS += -lpfm
1123    ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
1124    $(call detected,CONFIG_LIBPFM4)
1125  else
1126    msg := $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev);
1127  endif
1128endif
1129
1130# libtraceevent is a recommended dependency picked up from the system.
1131ifneq ($(NO_LIBTRACEEVENT),1)
1132  $(call feature_check,libtraceevent)
1133  ifeq ($(feature-libtraceevent), 1)
1134    CFLAGS += -DHAVE_LIBTRACEEVENT
1135    EXTLIBS += -ltraceevent
1136    LIBTRACEEVENT_VERSION := $(shell $(PKG_CONFIG) --modversion libtraceevent)
1137    LIBTRACEEVENT_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1138    LIBTRACEEVENT_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1139    LIBTRACEEVENT_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1140    LIBTRACEEVENT_VERSION_CPP := $(shell expr $(LIBTRACEEVENT_VERSION_1) \* 255 \* 255 + $(LIBTRACEEVENT_VERSION_2) \* 255 + $(LIBTRACEEVENT_VERSION_3))
1141    CFLAGS += -DLIBTRACEEVENT_VERSION=$(LIBTRACEEVENT_VERSION_CPP)
1142    $(call detected,CONFIG_LIBTRACEEVENT)
1143  else
1144    dummy := $(error ERROR: libtraceevent is missing. Please install libtraceevent-dev/libtraceevent-devel or build with NO_LIBTRACEEVENT=1)
1145  endif
1146
1147  $(call feature_check,libtracefs)
1148  ifeq ($(feature-libtracefs), 1)
1149    EXTLIBS += -ltracefs
1150    LIBTRACEFS_VERSION := $(shell $(PKG_CONFIG) --modversion libtracefs)
1151    LIBTRACEFS_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEFS_VERSION)))
1152    LIBTRACEFS_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEFS_VERSION)))
1153    LIBTRACEFS_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEFS_VERSION)))
1154    LIBTRACEFS_VERSION_CPP := $(shell expr $(LIBTRACEFS_VERSION_1) \* 255 \* 255 + $(LIBTRACEFS_VERSION_2) \* 255 + $(LIBTRACEFS_VERSION_3))
1155    CFLAGS += -DLIBTRACEFS_VERSION=$(LIBTRACEFS_VERSION_CPP)
1156  endif
1157endif
1158
1159# Among the variables below, these:
1160#   perfexecdir
1161#   libbpf_include_dir
1162#   perf_examples_dir
1163#   template_dir
1164#   mandir
1165#   infodir
1166#   htmldir
1167#   ETC_PERFCONFIG (but not sysconfdir)
1168# can be specified as a relative path some/where/else;
1169# this is interpreted as relative to $(prefix) and "perf" at
1170# runtime figures out where they are based on the path to the executable.
1171# This can help installing the suite in a relocatable way.
1172
1173# Make the path relative to DESTDIR, not to prefix
1174ifndef DESTDIR
1175prefix ?= $(HOME)
1176endif
1177bindir_relative = bin
1178bindir = $(abspath $(prefix)/$(bindir_relative))
1179includedir_relative = include
1180includedir = $(abspath $(prefix)/$(includedir_relative))
1181mandir = share/man
1182infodir = share/info
1183perfexecdir = libexec/perf-core
1184# FIXME: system's libbpf header directory, where we expect to find bpf/bpf_helpers.h, for instance
1185libbpf_include_dir = /usr/include
1186perf_examples_dir = lib/perf/examples
1187sharedir = $(prefix)/share
1188template_dir = share/perf-core/templates
1189STRACE_GROUPS_DIR = share/perf-core/strace/groups
1190htmldir = share/doc/perf-doc
1191tipdir = share/doc/perf-tip
1192srcdir = $(srctree)/tools/perf
1193ifeq ($(prefix),/usr)
1194sysconfdir = /etc
1195ETC_PERFCONFIG = $(sysconfdir)/perfconfig
1196else
1197sysconfdir = $(prefix)/etc
1198ETC_PERFCONFIG = etc/perfconfig
1199endif
1200ifndef lib
1201ifeq ($(SRCARCH)$(IS_64_BIT), x861)
1202lib = lib64
1203else
1204lib = lib
1205endif
1206endif # lib
1207libdir = $(prefix)/$(lib)
1208
1209# Shell quote (do not use $(call) to accommodate ancient setups);
1210ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
1211STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
1212DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
1213bindir_SQ = $(subst ','\'',$(bindir))
1214includedir_SQ = $(subst ','\'',$(includedir))
1215mandir_SQ = $(subst ','\'',$(mandir))
1216infodir_SQ = $(subst ','\'',$(infodir))
1217perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
1218libbpf_include_dir_SQ = $(subst ','\'',$(libbpf_include_dir))
1219perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
1220template_dir_SQ = $(subst ','\'',$(template_dir))
1221htmldir_SQ = $(subst ','\'',$(htmldir))
1222tipdir_SQ = $(subst ','\'',$(tipdir))
1223prefix_SQ = $(subst ','\'',$(prefix))
1224sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
1225libdir_SQ = $(subst ','\'',$(libdir))
1226srcdir_SQ = $(subst ','\'',$(srcdir))
1227
1228ifneq ($(filter /%,$(firstword $(perfexecdir))),)
1229perfexec_instdir = $(perfexecdir)
1230perf_include_instdir = $(libbpf_include_dir)
1231perf_examples_instdir = $(perf_examples_dir)
1232STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
1233tip_instdir = $(tipdir)
1234else
1235perfexec_instdir = $(prefix)/$(perfexecdir)
1236perf_include_instdir = $(prefix)/$(libbpf_include_dir)
1237perf_examples_instdir = $(prefix)/$(perf_examples_dir)
1238STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
1239tip_instdir = $(prefix)/$(tipdir)
1240endif
1241perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
1242perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
1243perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
1244STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
1245tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
1246
1247export perfexec_instdir_SQ
1248
1249print_var = $(eval $(print_var_code)) $(info $(MSG))
1250define print_var_code
1251    MSG = $(shell printf '...%40s: %s' $(1) $($(1)))
1252endef
1253
1254ifeq ($(feature_display),1)
1255  $(call feature_display_entries)
1256endif
1257
1258ifeq ($(VF),1)
1259  # Display EXTRA features which are detected manualy
1260  # from here with feature_check call and thus cannot
1261  # be partof global state output.
1262  $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),) $(info $(MSG)))
1263  $(call print_var,prefix)
1264  $(call print_var,bindir)
1265  $(call print_var,libdir)
1266  $(call print_var,sysconfdir)
1267  $(call print_var,LIBUNWIND_DIR)
1268  $(call print_var,LIBDW_DIR)
1269  $(call print_var,JDIR)
1270
1271  ifeq ($(dwarf-post-unwind),1)
1272    $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text)) $(info $(MSG))
1273  endif
1274endif
1275
1276$(info )
1277
1278$(call detected_var,bindir_SQ)
1279$(call detected_var,PYTHON_WORD)
1280ifneq ($(OUTPUT),)
1281$(call detected_var,OUTPUT)
1282endif
1283$(call detected_var,htmldir_SQ)
1284$(call detected_var,infodir_SQ)
1285$(call detected_var,mandir_SQ)
1286$(call detected_var,ETC_PERFCONFIG_SQ)
1287$(call detected_var,STRACE_GROUPS_DIR_SQ)
1288$(call detected_var,prefix_SQ)
1289$(call detected_var,perfexecdir_SQ)
1290$(call detected_var,libbpf_include_dir_SQ)
1291$(call detected_var,perf_examples_dir_SQ)
1292$(call detected_var,tipdir_SQ)
1293$(call detected_var,srcdir_SQ)
1294$(call detected_var,LIBDIR)
1295$(call detected_var,GTK_CFLAGS)
1296$(call detected_var,PERL_EMBED_CCOPTS)
1297$(call detected_var,PYTHON_EMBED_CCOPTS)
1298ifneq ($(BISON_FILE_PREFIX_MAP),)
1299$(call detected_var,BISON_FILE_PREFIX_MAP)
1300endif
1301
1302# re-generate FEATURE-DUMP as we may have called feature_check, found out
1303# extra libraries to add to LDFLAGS of some other test and then redo those
1304# tests, see the block about libbfd, disassembler-four-args, for instance.
1305$(shell rm -f $(FEATURE_DUMP_FILENAME))
1306$(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))
1307