xref: /linux/tools/perf/Makefile.config (revision ec714e371f22f716a04e6ecb2a24988c92b26911)
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# This is required because the kernel is built with this and some of the code
23# borrowed from kernel headers depends on it, e.g. put_unaligned_*().
24CFLAGS += -fno-strict-aliasing
25
26# Set target flag and options when using clang as compiler.
27ifeq ($(CC_NO_CLANG), 0)
28  CLANG_TARGET_FLAGS_arm	:= arm-linux-gnueabi
29  CLANG_TARGET_FLAGS_arm64	:= aarch64-linux-gnu
30  CLANG_TARGET_FLAGS_m68k	:= m68k-linux-gnu
31  CLANG_TARGET_FLAGS_mips	:= mipsel-linux-gnu
32  CLANG_TARGET_FLAGS_powerpc	:= powerpc64le-linux-gnu
33  CLANG_TARGET_FLAGS_riscv	:= riscv64-linux-gnu
34  CLANG_TARGET_FLAGS_s390	:= s390x-linux-gnu
35  CLANG_TARGET_FLAGS_x86	:= x86_64-linux-gnu
36  CLANG_TARGET_FLAGS_x86_64	:= x86_64-linux-gnu
37
38  # Default to host architecture if ARCH is not explicitly given.
39  ifeq ($(ARCH), $(HOSTARCH))
40    CLANG_TARGET_FLAGS := $(shell $(CLANG) -print-target-triple)
41  else
42    CLANG_TARGET_FLAGS := $(CLANG_TARGET_FLAGS_$(ARCH))
43  endif
44
45  ifeq ($(CROSS_COMPILE),)
46    ifeq ($(CLANG_TARGET_FLAGS),)
47      $(error Specify CROSS_COMPILE or add CLANG_TARGET_FLAGS for $(ARCH))
48    else
49      CLANG_FLAGS += --target=$(CLANG_TARGET_FLAGS)
50    endif # CLANG_TARGET_FLAGS
51  else
52    CLANG_FLAGS += --target=$(notdir $(CROSS_COMPILE:%-=%))
53  endif # CROSS_COMPILE
54
55  CC := $(CLANG) $(CLANG_FLAGS) -fintegrated-as
56  CXX := $(CXX) $(CLANG_FLAGS) -fintegrated-as
57
58  # Enabled Wthread-safety analysis for clang builds.
59  CFLAGS += -Wthread-safety
60endif
61
62include $(srctree)/tools/scripts/Makefile.arch
63
64$(call detected_var,SRCARCH)
65
66CFLAGS += -I$(OUTPUT)arch/$(SRCARCH)/include/generated
67CFLAGS += -I$(OUTPUT)libperf/arch/$(SRCARCH)/include/generated/uapi
68
69# Additional ARCH settings for ppc
70ifeq ($(SRCARCH),powerpc)
71  ifndef NO_LIBUNWIND
72    LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
73  endif
74endif
75
76# Additional ARCH settings for x86
77ifeq ($(SRCARCH),x86)
78  $(call detected,CONFIG_X86)
79  ifeq (${IS_64_BIT}, 1)
80    CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT
81    ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
82    ifndef NO_LIBUNWIND
83      LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma
84    endif
85    $(call detected,CONFIG_X86_64)
86  else
87    ifndef NO_LIBUNWIND
88      LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
89    endif
90  endif
91endif
92
93ifeq ($(SRCARCH),arm)
94  ifndef NO_LIBUNWIND
95    LIBUNWIND_LIBS = -lunwind -lunwind-arm
96  endif
97endif
98
99ifeq ($(SRCARCH),arm64)
100  ifndef NO_LIBUNWIND
101    LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
102  endif
103endif
104
105ifeq ($(SRCARCH),loongarch)
106  ifndef NO_LIBUNWIND
107    LIBUNWIND_LIBS = -lunwind -lunwind-loongarch64
108  endif
109endif
110
111ifeq ($(ARCH),s390)
112  CFLAGS += -fPIC
113endif
114
115ifeq ($(ARCH),mips)
116  ifndef NO_LIBUNWIND
117    LIBUNWIND_LIBS = -lunwind -lunwind-mips
118  endif
119endif
120
121# So far there's only x86 and arm libdw unwind support merged in perf.
122# Disable it on all other architectures in case libdw unwind
123# support is detected in system. Add supported architectures
124# to the check.
125ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky riscv loongarch))
126  NO_LIBDW_DWARF_UNWIND := 1
127endif
128
129ifneq ($(LIBUNWIND),1)
130  NO_LIBUNWIND := 1
131endif
132
133ifeq ($(LIBUNWIND_LIBS),)
134  NO_LIBUNWIND := 1
135endif
136#
137# For linking with debug library, run like:
138#
139#   make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
140#
141
142libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
143define libunwind_arch_set_flags_code
144  FEATURE_CHECK_CFLAGS-libunwind-$(1)  = -I$(LIBUNWIND_DIR)/include
145  FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
146endef
147
148ifdef LIBUNWIND_DIR
149  LIBUNWIND_CFLAGS  = -I$(LIBUNWIND_DIR)/include
150  LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
151  LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64 loongarch
152  $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
153endif
154
155ifndef NO_LIBUNWIND
156  # Set per-feature check compilation flags
157  FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
158  FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
159  FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
160  FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
161
162  FEATURE_CHECK_LDFLAGS-libunwind-arm += -lunwind -lunwind-arm
163  FEATURE_CHECK_LDFLAGS-libunwind-aarch64 += -lunwind -lunwind-aarch64
164  FEATURE_CHECK_LDFLAGS-libunwind-x86 += -lunwind -llzma -lunwind-x86
165  FEATURE_CHECK_LDFLAGS-libunwind-x86_64 += -lunwind -llzma -lunwind-x86_64
166endif
167
168ifdef CSINCLUDES
169  LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
170endif
171OPENCSDLIBS := -lopencsd_c_api -lopencsd
172ifeq ($(findstring -static,${LDFLAGS}),-static)
173  OPENCSDLIBS += -lstdc++
174endif
175ifdef CSLIBS
176  LIBOPENCSD_LDFLAGS := -L$(CSLIBS)
177endif
178FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
179FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
180
181# for linking with debug library, run like:
182# make DEBUG=1 LIBDW_DIR=/opt/libdw/
183ifdef LIBDW_DIR
184  LIBDW_CFLAGS  := -I$(LIBDW_DIR)/include
185  LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
186endif
187DWARFLIBS := -ldw
188ifeq ($(findstring -static,${LDFLAGS}),-static)
189  DWARFLIBS += -lelf -lz -llzma -lbz2
190
191  LIBDW_VERSION := $(shell $(PKG_CONFIG) --modversion libdw).0.0
192  LIBDW_VERSION_1 := $(word 1, $(subst ., ,$(LIBDW_VERSION)))
193  LIBDW_VERSION_2 := $(word 2, $(subst ., ,$(LIBDW_VERSION)))
194
195  # Elfutils merged libebl.a into libdw.a starting from version 0.177,
196  # Link libebl.a only if libdw is older than this version.
197  ifeq ($(shell test $(LIBDW_VERSION_2) -lt 177; echo $$?),0)
198    DWARFLIBS += -lebl
199  endif
200
201  # Must put -ldl after -lebl for dependency
202  DWARFLIBS += -ldl
203endif
204FEATURE_CHECK_CFLAGS-libdw := $(LIBDW_CFLAGS)
205FEATURE_CHECK_LDFLAGS-libdw := $(LIBDW_LDFLAGS) $(DWARFLIBS)
206
207# for linking with debug library, run like:
208# make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
209ifdef LIBBABELTRACE_DIR
210  LIBBABELTRACE_CFLAGS  := -I$(LIBBABELTRACE_DIR)/include
211  LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
212endif
213FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
214FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
215
216# for linking with debug library, run like:
217# make DEBUG=1 LIBCAPSTONE_DIR=/opt/capstone/
218ifdef LIBCAPSTONE_DIR
219  LIBCAPSTONE_CFLAGS  := -I$(LIBCAPSTONE_DIR)/include
220  LIBCAPSTONE_LDFLAGS := -L$(LIBCAPSTONE_DIR)/
221endif
222FEATURE_CHECK_CFLAGS-libcapstone := $(LIBCAPSTONE_CFLAGS)
223FEATURE_CHECK_LDFLAGS-libcapstone := $(LIBCAPSTONE_LDFLAGS) -lcapstone
224
225ifdef LIBZSTD_DIR
226  LIBZSTD_CFLAGS  := -I$(LIBZSTD_DIR)/lib
227  LIBZSTD_LDFLAGS := -L$(LIBZSTD_DIR)/lib
228endif
229FEATURE_CHECK_CFLAGS-libzstd := $(LIBZSTD_CFLAGS)
230FEATURE_CHECK_LDFLAGS-libzstd := $(LIBZSTD_LDFLAGS)
231
232# for linking with debug library, run like:
233# make DEBUG=1 PKG_CONFIG_PATH=/opt/libtraceevent/(lib|lib64)/pkgconfig
234
235ifneq ($(NO_LIBTRACEEVENT),1)
236  ifeq ($(call get-executable,$(PKG_CONFIG)),)
237    $(error Error: $(PKG_CONFIG) needed by libtraceevent is missing on this system, please install it)
238  endif
239endif
240
241FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
242# include ARCH specific config
243-include $(src-perf)/arch/$(SRCARCH)/Makefile
244
245include $(srctree)/tools/scripts/utilities.mak
246
247ifeq ($(call get-executable,$(FLEX)),)
248  $(error Error: $(FLEX) is missing on this system, please install it)
249endif
250
251ifeq ($(call get-executable,$(BISON)),)
252  $(error Error: $(BISON) is missing on this system, please install it)
253endif
254
255ifneq ($(OUTPUT),)
256  ifeq ($(shell expr $(shell $(BISON) --version | grep bison | sed -e 's/.\+ \([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/\1\2\3/g') \>\= 371), 1)
257    BISON_FILE_PREFIX_MAP := --file-prefix-map=$(OUTPUT)=
258  endif
259endif
260
261# Treat warnings as errors unless directed not to
262ifneq ($(WERROR),0)
263  CORE_CFLAGS += -Werror
264  CXXFLAGS += -Werror
265  HOSTCFLAGS += -Werror
266endif
267
268ifndef DEBUG
269  DEBUG := 0
270endif
271
272ifeq ($(DEBUG),0)
273CORE_CFLAGS += -DNDEBUG=1
274CORE_CFLAGS += -O3
275else
276  CORE_CFLAGS += -g
277  CXXFLAGS += -g
278endif
279
280ifdef PARSER_DEBUG
281  PARSER_DEBUG_BISON := -t
282  PARSER_DEBUG_FLEX  := -d
283  CFLAGS             += -DPARSER_DEBUG
284  $(call detected_var,PARSER_DEBUG_BISON)
285  $(call detected_var,PARSER_DEBUG_FLEX)
286endif
287
288ifdef LTO
289  CORE_CFLAGS += -flto
290  CXXFLAGS += -flto
291endif
292
293# Try different combinations to accommodate systems that only have
294# python[2][3]-config in weird combinations in the following order of
295# priority from lowest to highest:
296#   * python2-config as per pep-0394.
297#   * python-config
298#   * python3-config
299#   * $(PYTHON)-config (If PYTHON is user supplied but PYTHON_CONFIG isn't)
300#
301PYTHON_AUTO := python-config
302PYTHON_AUTO := $(if $(call get-executable,python2-config),python2-config,$(PYTHON_AUTO))
303PYTHON_AUTO := $(if $(call get-executable,python-config),python-config,$(PYTHON_AUTO))
304PYTHON_AUTO := $(if $(call get-executable,python3-config),python3-config,$(PYTHON_AUTO))
305
306# If PYTHON is defined but PYTHON_CONFIG isn't, then take $(PYTHON)-config as if it was the user
307# supplied value for PYTHON_CONFIG. Because it's "user supplied", error out if it doesn't exist.
308ifdef PYTHON
309  ifndef PYTHON_CONFIG
310    PYTHON_CONFIG_AUTO := $(call get-executable,$(PYTHON)-config)
311    PYTHON_CONFIG := $(if $(PYTHON_CONFIG_AUTO),$(PYTHON_CONFIG_AUTO),\
312                          $(call $(error $(PYTHON)-config not found)))
313  endif
314endif
315
316# Select either auto detected python and python-config or use user supplied values if they are
317# defined. get-executable-or-default fails with an error if the first argument is supplied but
318# doesn't exist.
319override PYTHON_CONFIG := $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON_AUTO))
320override PYTHON := $(call get-executable-or-default,PYTHON,$(subst -config,,$(PYTHON_CONFIG)))
321
322grep-libs  = $(filter -l%,$(1))
323strip-libs  = $(filter-out -l%,$(1))
324
325PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
326
327# Python 3.8 changed the output of `python-config --ldflags` to not include the
328# '-lpythonX.Y' flag unless '--embed' is also passed. The feature check for
329# libpython fails if that flag is not included in LDFLAGS
330ifeq ($(shell $(PYTHON_CONFIG_SQ) --ldflags --embed 2>&1 1>/dev/null; echo $$?), 0)
331  PYTHON_CONFIG_LDFLAGS := --ldflags --embed
332else
333  PYTHON_CONFIG_LDFLAGS := --ldflags
334endif
335
336ifdef PYTHON_CONFIG
337  PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) $(PYTHON_CONFIG_LDFLAGS) 2>/dev/null)
338  # Update the python flags for cross compilation
339  ifdef CROSS_COMPILE
340    PYTHON_NATIVE := $(shell echo $(PYTHON_EMBED_LDOPTS) | sed 's/\(-L.*\/\)\(.*-linux-gnu\).*/\2/')
341    PYTHON_EMBED_LDOPTS := $(subst $(PYTHON_NATIVE),$(shell $(CC) -dumpmachine),$(PYTHON_EMBED_LDOPTS))
342  endif
343  PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
344  PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
345  PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null)
346  FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
347  ifeq ($(CC_NO_CLANG), 0)
348    PYTHON_EMBED_CCOPTS := $(filter-out -ffat-lto-objects, $(PYTHON_EMBED_CCOPTS))
349  endif
350endif
351
352FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
353FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
354
355FEATURE_CHECK_LDFLAGS-libaio = -lrt
356
357FEATURE_CHECK_LDFLAGS-disassembler-four-args = -lbfd -lopcodes -ldl
358FEATURE_CHECK_LDFLAGS-disassembler-init-styled = -lbfd -lopcodes -ldl
359
360CORE_CFLAGS += -fno-omit-frame-pointer
361CORE_CFLAGS += -Wall
362CORE_CFLAGS += -Wextra
363CORE_CFLAGS += -std=gnu11
364
365CXXFLAGS += -std=gnu++17 -fno-exceptions -fno-rtti
366CXXFLAGS += -Wall
367CXXFLAGS += -Wextra
368CXXFLAGS += -fno-omit-frame-pointer
369
370HOSTCFLAGS += -Wall
371HOSTCFLAGS += -Wextra
372
373# Enforce a non-executable stack, as we may regress (again) in the future by
374# adding assembler files missing the .GNU-stack linker note.
375LDFLAGS += -Wl,-z,noexecstack
376
377EXTLIBS = -lpthread -lrt -lm -ldl
378
379ifneq ($(TCMALLOC),)
380  CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free
381  EXTLIBS += -ltcmalloc
382endif
383
384ifeq ($(FEATURES_DUMP),)
385# We will display at the end of this Makefile.config, using $(call feature_display_entries)
386# As we may retry some feature detection here, see the disassembler-four-args case, for instance
387  FEATURE_DISPLAY_DEFERRED := 1
388include $(srctree)/tools/build/Makefile.feature
389else
390include $(FEATURES_DUMP)
391endif
392
393ifeq ($(feature-stackprotector-all), 1)
394  CORE_CFLAGS += -fstack-protector-all
395endif
396
397ifeq ($(DEBUG),0)
398  ifeq ($(feature-fortify-source), 1)
399    CORE_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
400  endif
401endif
402
403INC_FLAGS += -I$(src-perf)/util/include
404INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
405INC_FLAGS += -I$(srctree)/tools/include/
406INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
407INC_FLAGS += -I$(srctree)/tools/include/uapi
408INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
409INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
410
411# $(obj-perf)      for generated common-cmds.h
412# $(obj-perf)/util for generated bison/flex headers
413ifneq ($(OUTPUT),)
414INC_FLAGS += -I$(obj-perf)/util
415INC_FLAGS += -I$(obj-perf)
416endif
417
418INC_FLAGS += -I$(src-perf)/util
419INC_FLAGS += -I$(src-perf)
420
421CORE_CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
422
423CFLAGS   += $(CORE_CFLAGS) $(INC_FLAGS)
424CXXFLAGS += $(INC_FLAGS)
425
426LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS)
427
428ifeq ($(feature-pthread-attr-setaffinity-np), 1)
429  CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
430endif
431
432ifeq ($(feature-pthread-barrier), 1)
433  CFLAGS += -DHAVE_PTHREAD_BARRIER
434endif
435
436ifndef NO_BIONIC
437  $(call feature_check,bionic)
438  ifeq ($(feature-bionic), 1)
439    BIONIC := 1
440    CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE
441    CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE
442    EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
443    EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
444  endif
445endif
446
447ifeq ($(feature-eventfd), 1)
448  CFLAGS += -DHAVE_EVENTFD_SUPPORT
449endif
450
451ifeq ($(feature-gettid), 1)
452  CFLAGS += -DHAVE_GETTID
453endif
454
455ifeq ($(feature-file-handle), 1)
456  CFLAGS += -DHAVE_FILE_HANDLE
457endif
458
459ifdef NO_LIBELF
460  NO_LIBDW := 1
461  NO_LIBUNWIND := 1
462  NO_LIBDW_DWARF_UNWIND := 1
463  NO_LIBBPF := 1
464  NO_JVMTI := 1
465else
466  ifeq ($(feature-libelf), 0)
467    ifeq ($(feature-glibc), 1)
468      LIBC_SUPPORT := 1
469    endif
470    ifeq ($(BIONIC),1)
471      LIBC_SUPPORT := 1
472    endif
473    ifeq ($(LIBC_SUPPORT),1)
474      $(error ERROR: No libelf found. Disables 'probe' tool, jvmti and BPF support. Please install libelf-dev, libelf-devel, elfutils-libelf-devel or build with NO_LIBELF=1.)
475    else
476      ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
477        ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
478          $(error No libasan found, please install libasan)
479        endif
480      endif
481
482      ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
483        ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
484          $(error No libubsan found, please install libubsan)
485        endif
486      endif
487
488      ifneq ($(filter s% -static%,$(LDFLAGS),),)
489        $(error No static glibc found, please install glibc-static)
490      else
491        $(error No gnu/libc-version.h found, please install glibc-dev[el])
492      endif
493    endif
494  else
495    ifneq ($(feature-libdw), 1)
496      ifndef NO_LIBDW
497        $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.157, disables dwarf support. Please install new elfutils-devel/libdw-dev)
498        NO_LIBDW := 1
499      endif
500    endif # Dwarf support
501  endif # libelf support
502endif # NO_LIBELF
503
504ifeq ($(feature-libaio), 1)
505  ifndef NO_AIO
506    CFLAGS += -DHAVE_AIO_SUPPORT
507  endif
508endif
509
510ifdef NO_LIBDW
511  NO_LIBDW_DWARF_UNWIND := 1
512endif
513
514ifeq ($(feature-scandirat), 1)
515  # Ignore having scandirat with memory sanitizer that lacks an interceptor.
516  ifeq ($(filter s% -fsanitize=memory%,$(EXTRA_CFLAGS),),)
517    CFLAGS += -DHAVE_SCANDIRAT_SUPPORT
518  endif
519endif
520
521ifeq ($(feature-sched_getcpu), 1)
522  CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
523endif
524
525ifeq ($(feature-setns), 1)
526  CFLAGS += -DHAVE_SETNS_SUPPORT
527  $(call detected,CONFIG_SETNS)
528endif
529
530ifeq ($(feature-reallocarray), 0)
531  CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
532endif
533
534ifdef CORESIGHT
535  $(call feature_check,libopencsd)
536  ifeq ($(feature-libopencsd), 1)
537    CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
538    LDFLAGS += $(LIBOPENCSD_LDFLAGS)
539    EXTLIBS += $(OPENCSDLIBS)
540    $(call detected,CONFIG_LIBOPENCSD)
541    ifdef CSTRACE_RAW
542      CFLAGS += -DCS_DEBUG_RAW
543      ifeq (${CSTRACE_RAW}, packed)
544        CFLAGS += -DCS_RAW_PACKED
545      endif
546    endif
547  else
548    $(error Error: No libopencsd library found or the version is not up-to-date. Please install recent libopencsd to build with CORESIGHT=1)
549  endif
550endif
551
552ifndef NO_ZLIB
553  ifeq ($(feature-zlib), 1)
554    CFLAGS += -DHAVE_ZLIB_SUPPORT
555    EXTLIBS += -lz
556    $(call detected,CONFIG_ZLIB)
557  else
558    NO_ZLIB := 1
559  endif
560endif
561
562ifndef NO_LIBELF
563  CFLAGS += -DHAVE_LIBELF_SUPPORT
564  EXTLIBS += -lelf
565  $(call detected,CONFIG_LIBELF)
566
567  ifeq ($(feature-libelf-getphdrnum), 1)
568    CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
569  endif
570
571  ifeq ($(feature-libelf-gelf_getnote), 1)
572    CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
573  else
574    $(warning gelf_getnote() not found on libelf, SDT support disabled)
575  endif
576
577  ifeq ($(feature-libelf-getshdrstrndx), 1)
578    CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
579  endif
580
581  ifeq ($(feature-libelf-zstd), 1)
582    ifdef NO_LIBZSTD
583      $(error Error: libzstd is required by libelf, please do not set NO_LIBZSTD)
584    endif
585  endif
586
587  ifndef NO_LIBDEBUGINFOD
588    $(call feature_check,libdebuginfod)
589    ifeq ($(feature-libdebuginfod), 1)
590      CFLAGS += -DHAVE_DEBUGINFOD_SUPPORT
591      EXTLIBS += -ldebuginfod
592    else
593      $(warning No elfutils/debuginfod.h found, no debuginfo server support, please install libdebuginfod-dev/elfutils-debuginfod-client-devel or equivalent)
594    endif
595  endif
596
597  ifndef NO_LIBDW
598    CFLAGS += -DHAVE_LIBDW_SUPPORT $(LIBDW_CFLAGS)
599    LDFLAGS += $(LIBDW_LDFLAGS)
600    EXTLIBS += ${DWARFLIBS}
601    $(call detected,CONFIG_LIBDW)
602  endif # NO_LIBDW
603
604  ifndef NO_LIBBPF
605    ifeq ($(feature-bpf), 1)
606      # detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
607      $(call feature_check,libbpf)
608
609      ifdef LIBBPF_DYNAMIC
610        ifeq ($(feature-libbpf), 1)
611          EXTLIBS += -lbpf
612          CFLAGS += -DHAVE_LIBBPF_SUPPORT
613          $(call detected,CONFIG_LIBBPF)
614          $(call detected,CONFIG_LIBBPF_DYNAMIC)
615        else
616          $(error Error: No libbpf devel library found or older than v1.0, please install/update libbpf-devel)
617        endif
618      else
619        ifeq ($(NO_ZLIB), 1)
620          $(warning Warning: Statically building libbpf not possible as zlib is missing)
621          NO_LIBBPF := 1
622        else
623          # Libbpf will be built as a static library from tools/lib/bpf.
624          LIBBPF_STATIC := 1
625          $(call detected,CONFIG_LIBBPF)
626          CFLAGS += -DHAVE_LIBBPF_SUPPORT
627	  LIBBPF_INCLUDE = $(LIBBPF_DIR)/..
628        endif
629      endif
630    endif
631  endif # NO_LIBBPF
632endif # NO_LIBELF
633
634ifndef NO_SDT
635  ifneq ($(feature-sdt), 1)
636    $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev)
637    NO_SDT := 1;
638  else
639    CFLAGS += -DHAVE_SDT_EVENT
640    $(call detected,CONFIG_SDT_EVENT)
641  endif
642endif
643
644ifdef PERF_HAVE_JITDUMP
645  ifndef NO_LIBELF
646    $(call detected,CONFIG_JITDUMP)
647    CFLAGS += -DHAVE_JITDUMP
648  endif
649endif
650
651ifeq ($(SRCARCH),powerpc)
652  ifndef NO_LIBDW
653    CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
654  endif
655endif
656
657ifndef NO_LIBUNWIND
658  have_libunwind :=
659
660  $(call feature_check,libunwind)
661
662  $(call feature_check,libunwind-x86)
663  ifeq ($(feature-libunwind-x86), 1)
664    $(call detected,CONFIG_LIBUNWIND_X86)
665    CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
666    LDFLAGS += -lunwind-x86
667    EXTLIBS_LIBUNWIND += -lunwind-x86
668    have_libunwind = 1
669  endif
670
671  $(call feature_check,libunwind-aarch64)
672  ifeq ($(feature-libunwind-aarch64), 1)
673    $(call detected,CONFIG_LIBUNWIND_AARCH64)
674    CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
675    LDFLAGS += -lunwind-aarch64
676    EXTLIBS_LIBUNWIND += -lunwind-aarch64
677    have_libunwind = 1
678    $(call feature_check,libunwind-debug-frame-aarch64)
679    ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
680      $(warning No debug_frame support found in libunwind-aarch64)
681      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
682    endif
683  endif
684
685  ifneq ($(feature-libunwind), 1)
686    $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR and set LIBUNWIND=1 in the make command line as it is opt-in now)
687    NO_LOCAL_LIBUNWIND := 1
688  else
689    have_libunwind := 1
690    $(call detected,CONFIG_LOCAL_LIBUNWIND)
691  endif
692
693  ifneq ($(have_libunwind), 1)
694    NO_LIBUNWIND := 1
695  endif
696else
697  NO_LOCAL_LIBUNWIND := 1
698endif
699
700ifndef NO_LIBBPF
701  ifneq ($(feature-bpf), 1)
702    $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
703    NO_LIBBPF := 1
704  endif
705endif
706
707ifndef BUILD_BPF_SKEL
708  # BPF skeletons control a large number of perf features, by default
709  # they are enabled.
710  BUILD_BPF_SKEL := 1
711endif
712
713ifeq ($(BUILD_BPF_SKEL),1)
714  ifeq ($(filter -DHAVE_LIBELF_SUPPORT, $(CFLAGS)),)
715    $(warning Warning: Disabled BPF skeletons as libelf is required by bpftool)
716    BUILD_BPF_SKEL := 0
717  else ifeq ($(filter -DHAVE_ZLIB_SUPPORT, $(CFLAGS)),)
718    $(warning Warning: Disabled BPF skeletons as zlib is required by bpftool)
719    BUILD_BPF_SKEL := 0
720  else ifeq ($(filter -DHAVE_LIBBPF_SUPPORT, $(CFLAGS)),)
721    $(warning Warning: Disabled BPF skeletons as libbpf is required)
722    BUILD_BPF_SKEL := 0
723  else ifeq ($(call get-executable,$(CLANG)),)
724    $(warning Warning: Disabled BPF skeletons as clang ($(CLANG)) is missing)
725    BUILD_BPF_SKEL := 0
726  else
727    CLANG_VERSION := $(shell $(CLANG) --version | head -1 | sed 's/.*clang version \([[:digit:]]\+.[[:digit:]]\+.[[:digit:]]\+\).*/\1/g')
728    ifeq ($(call version-lt3,$(CLANG_VERSION),12.0.1),1)
729      $(warning Warning: Disabled BPF skeletons as reliable BTF generation needs at least $(CLANG) version 12.0.1)
730      BUILD_BPF_SKEL := 0
731    endif
732  endif
733  ifeq ($(BUILD_BPF_SKEL),1)
734    $(call feature_check,clang-bpf-co-re)
735    ifeq ($(feature-clang-bpf-co-re), 0)
736      $(warning Warning: Disabled BPF skeletons as clang is too old)
737      BUILD_BPF_SKEL := 0
738    endif
739  endif
740  ifeq ($(BUILD_BPF_SKEL),1)
741    $(call detected,CONFIG_PERF_BPF_SKEL)
742    CFLAGS += -DHAVE_BPF_SKEL
743  endif
744endif
745
746ifndef GEN_VMLINUX_H
747  VMLINUX_H=$(src-perf)/util/bpf_skel/vmlinux/vmlinux.h
748endif
749
750dwarf-post-unwind := 1
751dwarf-post-unwind-text := BUG
752
753# setup DWARF post unwinder
754ifdef NO_LIBUNWIND
755  ifdef NO_LIBDW_DWARF_UNWIND
756    $(warning Disabling post unwind, no support found.)
757    dwarf-post-unwind := 0
758  else
759    dwarf-post-unwind-text := libdw
760    $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
761  endif
762else
763  dwarf-post-unwind-text := libunwind
764  $(call detected,CONFIG_LIBUNWIND)
765  # Enable libunwind support by default.
766  ifndef NO_LIBDW_DWARF_UNWIND
767    NO_LIBDW_DWARF_UNWIND := 1
768  endif
769endif
770
771ifeq ($(dwarf-post-unwind),1)
772  CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
773  $(call detected,CONFIG_DWARF_UNWIND)
774endif
775
776ifndef NO_LIBUNWIND
777  ifndef NO_LOCAL_LIBUNWIND
778    ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
779      $(call feature_check,libunwind-debug-frame)
780      ifneq ($(feature-libunwind-debug-frame), 1)
781        $(warning No debug_frame support found in libunwind)
782        CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
783      endif
784    else
785      # non-ARM has no dwarf_find_debug_frame() function:
786      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
787    endif
788    EXTLIBS += $(LIBUNWIND_LIBS)
789    LDFLAGS += $(LIBUNWIND_LIBS)
790  endif
791  ifeq ($(findstring -static,${LDFLAGS}),-static)
792    # gcc -static links libgcc_eh which contans piece of libunwind
793    LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
794  endif
795  CFLAGS  += -DHAVE_LIBUNWIND_SUPPORT
796  CFLAGS  += $(LIBUNWIND_CFLAGS)
797  LDFLAGS += $(LIBUNWIND_LDFLAGS)
798  EXTLIBS += $(EXTLIBS_LIBUNWIND)
799endif
800
801ifneq ($(NO_LIBTRACEEVENT),1)
802  $(call detected,CONFIG_TRACE)
803endif
804
805ifndef NO_SLANG
806  ifneq ($(feature-libslang), 1)
807    $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev)
808    NO_SLANG := 1
809  endif
810  ifndef NO_SLANG
811    CFLAGS += -DHAVE_SLANG_SUPPORT
812    EXTLIBS += -lslang
813    $(call detected,CONFIG_SLANG)
814  endif
815endif
816
817ifdef GTK2
818  FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
819  $(call feature_check,gtk2)
820  ifneq ($(feature-gtk2), 1)
821    $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev)
822    NO_GTK2 := 1
823  else
824    $(call feature_check,gtk2-infobar)
825    ifeq ($(feature-gtk2-infobar), 1)
826      GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
827    endif
828    CFLAGS += -DHAVE_GTK2_SUPPORT
829    GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
830    GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
831    EXTLIBS += -ldl
832  endif
833endif
834
835ifdef LIBPERL
836  PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
837  PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
838  PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
839  PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
840  PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
841  PERL_EMBED_CCOPTS := $(filter-out -flto% -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
842  PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
843  FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
844
845  $(call feature_check,libperl)
846  ifneq ($(feature-libperl), 1)
847    $(error Missing perl devel files. Please install perl-ExtUtils-Embed/libperl-dev)
848  else
849    LDFLAGS += $(PERL_EMBED_LDFLAGS)
850    EXTLIBS += $(PERL_EMBED_LIBADD)
851    CFLAGS += -DHAVE_LIBPERL_SUPPORT
852    $(call detected,CONFIG_LIBPERL)
853  endif
854endif
855
856ifeq ($(feature-timerfd), 1)
857  CFLAGS += -DHAVE_TIMERFD_SUPPORT
858else
859  $(warning No timerfd support. Disables 'perf kvm stat live')
860endif
861
862disable-python = $(eval $(disable-python_code))
863define disable-python_code
864  CFLAGS += -DNO_LIBPYTHON
865  $(warning $1)
866  NO_LIBPYTHON := 1
867endef
868
869PYTHON_EXTENSION_SUFFIX := '.so'
870ifdef NO_LIBPYTHON
871  $(call disable-python,Python support disabled by user)
872else
873
874  ifndef PYTHON
875    $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
876  else
877    PYTHON_WORD := $(call shell-wordify,$(PYTHON))
878
879    ifndef PYTHON_CONFIG
880      $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
881    else
882
883      ifneq ($(feature-libpython), 1)
884        $(call disable-python,No 'Python.h' was found: disables Python support - please install python-devel/python-dev)
885      else
886         LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
887         EXTLIBS += $(PYTHON_EMBED_LIBADD)
888         PYTHON_SETUPTOOLS_INSTALLED := $(shell $(PYTHON) -c 'import setuptools;' 2> /dev/null && echo "yes" || echo "no")
889         ifeq ($(PYTHON_SETUPTOOLS_INSTALLED), yes)
890           PYTHON_EXTENSION_SUFFIX := $(shell $(PYTHON) -c 'from importlib import machinery; print(machinery.EXTENSION_SUFFIXES[0])')
891           ifdef CROSS_COMPILE
892             PYTHON_EXTENSION_SUFFIX := $(subst $(PYTHON_NATIVE),$(shell $(CC) -dumpmachine),$(PYTHON_EXTENSION_SUFFIX))
893           endif
894           LANG_BINDINGS += $(obj-perf)python/perf$(PYTHON_EXTENSION_SUFFIX)
895	 else
896           $(warning Missing python setuptools, the python binding won't be built, please install python3-setuptools or equivalent)
897         endif
898         CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
899         $(call detected,CONFIG_LIBPYTHON)
900         ifeq ($(filter -fPIC,$(CFLAGS)),)
901           # Building a shared library requires position independent code.
902           CFLAGS += -fPIC
903           CXXFLAGS += -fPIC
904         endif
905      endif
906    endif
907  endif
908endif
909
910ifneq ($(NO_JEVENTS),1)
911  ifeq ($(wildcard pmu-events/arch/$(SRCARCH)/mapfile.csv),)
912    NO_JEVENTS := 1
913  endif
914endif
915ifneq ($(NO_JEVENTS),1)
916  NO_JEVENTS := 0
917  ifndef PYTHON
918    $(error ERROR: No python interpreter needed for jevents generation. Install python or build with NO_JEVENTS=1.)
919  else
920    # jevents.py uses f-strings present in Python 3.6 released in Dec. 2016.
921    JEVENTS_PYTHON_GOOD := $(shell $(PYTHON) -c 'import sys;print("1" if(sys.version_info.major >= 3 and sys.version_info.minor >= 6) else "0")' 2> /dev/null)
922    ifneq ($(JEVENTS_PYTHON_GOOD), 1)
923      $(error ERROR: Python interpreter needed for jevents generation too old (older than 3.6). Install a newer python or build with NO_JEVENTS=1.)
924    endif
925  endif
926endif
927
928ifdef BUILD_NONDISTRO
929  $(call feature_check,libbfd)
930
931  ifeq ($(feature-libbfd), 1)
932    EXTLIBS += -lbfd -lopcodes
933  else
934    # we are on a system that requires -liberty and (maybe) -lz
935    # to link against -lbfd; test each case individually here
936
937    # call all detections now so we get correct
938    # status in VF output
939    $(call feature_check,libbfd-liberty)
940    $(call feature_check,libbfd-liberty-z)
941
942    ifeq ($(feature-libbfd-liberty), 1)
943      EXTLIBS += -lbfd -lopcodes -liberty
944      FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl
945      FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -ldl
946    else
947      ifeq ($(feature-libbfd-liberty-z), 1)
948        EXTLIBS += -lbfd -lopcodes -liberty -lz
949        FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl
950        FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -lz -ldl
951      endif
952    endif
953    $(call feature_check,disassembler-four-args)
954    $(call feature_check,disassembler-init-styled)
955  endif
956
957  CFLAGS += -DHAVE_LIBBFD_SUPPORT
958  CXXFLAGS += -DHAVE_LIBBFD_SUPPORT
959  $(call detected,CONFIG_LIBBFD)
960
961  $(call feature_check,libbfd-buildid)
962
963  ifeq ($(feature-libbfd-buildid), 1)
964    CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
965  else
966    $(warning Old version of libbfd/binutils things like PE executable profiling will not be available)
967  endif
968
969  ifeq ($(feature-disassembler-four-args), 1)
970    CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
971  endif
972
973  ifeq ($(feature-disassembler-init-styled), 1)
974    CFLAGS += -DDISASM_INIT_STYLED
975  endif
976endif
977
978ifndef NO_LIBLLVM
979  $(call feature_check,llvm-perf)
980  ifeq ($(feature-llvm-perf), 1)
981    CFLAGS += -DHAVE_LIBLLVM_SUPPORT
982    CFLAGS += $(shell $(LLVM_CONFIG) --cflags)
983    CXXFLAGS += -DHAVE_LIBLLVM_SUPPORT
984    CXXFLAGS += $(shell $(LLVM_CONFIG) --cxxflags)
985    LIBLLVM = $(shell $(LLVM_CONFIG) --libs all) $(shell $(LLVM_CONFIG) --system-libs)
986    EXTLIBS += -L$(shell $(LLVM_CONFIG) --libdir) $(LIBLLVM)
987    EXTLIBS += -lstdc++
988    $(call detected,CONFIG_LIBLLVM)
989  else
990    $(warning No libllvm 13+ found, slower source file resolution, please install llvm-devel/llvm-dev)
991    NO_LIBLLVM := 1
992  endif
993endif
994
995ifndef NO_DEMANGLE
996  $(call feature_check,cxa-demangle)
997  ifeq ($(feature-cxa-demangle), 1)
998    EXTLIBS += -lstdc++
999    CFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT
1000    CXXFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT
1001    $(call detected,CONFIG_CXX_DEMANGLE)
1002  endif
1003  ifdef BUILD_NONDISTRO
1004    ifeq ($(filter -liberty,$(EXTLIBS)),)
1005      $(call feature_check,cplus-demangle)
1006      ifeq ($(feature-cplus-demangle), 1)
1007        EXTLIBS += -liberty
1008      endif
1009    endif
1010    ifneq ($(filter -liberty,$(EXTLIBS)),)
1011      CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
1012      CXXFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
1013    endif
1014  endif
1015endif
1016
1017ifndef NO_LZMA
1018  ifeq ($(feature-lzma), 1)
1019    CFLAGS += -DHAVE_LZMA_SUPPORT
1020    EXTLIBS += -llzma
1021    $(call detected,CONFIG_LZMA)
1022  else
1023    $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev)
1024    NO_LZMA := 1
1025  endif
1026endif
1027
1028ifndef NO_LIBZSTD
1029  ifeq ($(feature-libzstd), 1)
1030    CFLAGS += -DHAVE_ZSTD_SUPPORT
1031    CFLAGS += $(LIBZSTD_CFLAGS)
1032    LDFLAGS += $(LIBZSTD_LDFLAGS)
1033    EXTLIBS += -lzstd
1034    $(call detected,CONFIG_ZSTD)
1035  else
1036    $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR)
1037    NO_LIBZSTD := 1
1038  endif
1039endif
1040
1041ifndef NO_BACKTRACE
1042  ifeq ($(feature-backtrace), 1)
1043    CFLAGS += -DHAVE_BACKTRACE_SUPPORT
1044  endif
1045endif
1046
1047ifndef NO_LIBNUMA
1048  ifeq ($(feature-libnuma), 0)
1049    $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev)
1050    NO_LIBNUMA := 1
1051  else
1052    ifeq ($(feature-numa_num_possible_cpus), 0)
1053      $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8)
1054      NO_LIBNUMA := 1
1055    else
1056      CFLAGS += -DHAVE_LIBNUMA_SUPPORT
1057      EXTLIBS += -lnuma
1058      $(call detected,CONFIG_NUMA)
1059    endif
1060  endif
1061endif
1062
1063ifdef HAVE_KVM_STAT_SUPPORT
1064    CFLAGS += -DHAVE_KVM_STAT_SUPPORT
1065endif
1066
1067ifeq (${IS_64_BIT}, 1)
1068  ifndef NO_PERF_READ_VDSO32
1069    $(call feature_check,compile-32)
1070    ifeq ($(feature-compile-32), 1)
1071      CFLAGS += -DHAVE_PERF_READ_VDSO32
1072    else
1073      NO_PERF_READ_VDSO32 := 1
1074    endif
1075  endif
1076  ifneq ($(SRCARCH), x86)
1077    NO_PERF_READ_VDSOX32 := 1
1078  endif
1079  ifndef NO_PERF_READ_VDSOX32
1080    $(call feature_check,compile-x32)
1081    ifeq ($(feature-compile-x32), 1)
1082      CFLAGS += -DHAVE_PERF_READ_VDSOX32
1083    else
1084      NO_PERF_READ_VDSOX32 := 1
1085    endif
1086  endif
1087else
1088  NO_PERF_READ_VDSO32 := 1
1089  NO_PERF_READ_VDSOX32 := 1
1090endif
1091
1092ifndef NO_LIBBABELTRACE
1093  $(call feature_check,libbabeltrace)
1094  ifeq ($(feature-libbabeltrace), 1)
1095    CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
1096    LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
1097    EXTLIBS += -lbabeltrace-ctf
1098    $(call detected,CONFIG_LIBBABELTRACE)
1099  else
1100    $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev)
1101  endif
1102endif
1103
1104ifndef NO_CAPSTONE
1105  $(call feature_check,libcapstone)
1106  ifeq ($(feature-libcapstone), 1)
1107    CFLAGS += -DHAVE_LIBCAPSTONE_SUPPORT $(LIBCAPSTONE_CFLAGS)
1108    LDFLAGS += $(LICAPSTONE_LDFLAGS)
1109    EXTLIBS += -lcapstone
1110    $(call detected,CONFIG_LIBCAPSTONE)
1111  else
1112    msg := $(warning No libcapstone found, disables disasm engine support for 'perf script', please install libcapstone-dev/capstone-devel);
1113  endif
1114endif
1115
1116ifndef NO_AUXTRACE
1117  ifeq ($(SRCARCH),x86)
1118    ifeq ($(feature-get_cpuid), 0)
1119      $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc)
1120      NO_AUXTRACE := 1
1121    endif
1122  endif
1123  ifndef NO_AUXTRACE
1124    $(call detected,CONFIG_AUXTRACE)
1125    CFLAGS += -DHAVE_AUXTRACE_SUPPORT
1126  endif
1127endif
1128
1129ifdef EXTRA_TESTS
1130    $(call detected,CONFIG_EXTRA_TESTS)
1131    CFLAGS += -DHAVE_EXTRA_TESTS
1132endif
1133
1134ifndef NO_JVMTI
1135  ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
1136    JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
1137  else
1138    ifneq (,$(wildcard /usr/sbin/alternatives))
1139      JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
1140    endif
1141  endif
1142  ifndef JDIR
1143    $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
1144    NO_JVMTI := 1
1145  endif
1146endif
1147
1148ifndef NO_JVMTI
1149  FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
1150  $(call feature_check,jvmti)
1151  ifeq ($(feature-jvmti), 1)
1152    $(call detected_var,JDIR)
1153    ifndef NO_JVMTI_CMLR
1154      FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
1155      $(call feature_check,jvmti-cmlr)
1156      ifeq ($(feature-jvmti-cmlr), 1)
1157        CFLAGS += -DHAVE_JVMTI_CMLR
1158      endif
1159    endif # NO_JVMTI_CMLR
1160  else
1161    $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-latest-openjdk-devel)
1162    NO_JVMTI := 1
1163  endif
1164endif
1165
1166ifndef NO_LIBPFM4
1167  $(call feature_check,libpfm4)
1168  ifeq ($(feature-libpfm4), 1)
1169    CFLAGS += -DHAVE_LIBPFM
1170    EXTLIBS += -lpfm
1171    ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
1172    $(call detected,CONFIG_LIBPFM4)
1173  else
1174    $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm-devel or libpfm4-dev)
1175  endif
1176endif
1177
1178# libtraceevent is a recommended dependency picked up from the system.
1179ifneq ($(NO_LIBTRACEEVENT),1)
1180  ifeq ($(feature-libtraceevent), 1)
1181    CFLAGS += -DHAVE_LIBTRACEEVENT $(shell $(PKG_CONFIG) --cflags libtraceevent)
1182    LDFLAGS += $(shell $(PKG_CONFIG) --libs-only-L libtraceevent)
1183    EXTLIBS += $(shell $(PKG_CONFIG) --libs-only-l libtraceevent)
1184    LIBTRACEEVENT_VERSION := $(shell $(PKG_CONFIG) --modversion libtraceevent).0.0
1185    LIBTRACEEVENT_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1186    LIBTRACEEVENT_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1187    LIBTRACEEVENT_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1188    LIBTRACEEVENT_VERSION_CPP := $(shell expr $(LIBTRACEEVENT_VERSION_1) \* 255 \* 255 + $(LIBTRACEEVENT_VERSION_2) \* 255 + $(LIBTRACEEVENT_VERSION_3))
1189    CFLAGS += -DLIBTRACEEVENT_VERSION=$(LIBTRACEEVENT_VERSION_CPP)
1190    $(call detected,CONFIG_LIBTRACEEVENT)
1191  else
1192    $(error ERROR: libtraceevent is missing. Please install libtraceevent-dev/libtraceevent-devel and/or set LIBTRACEEVENT_DIR or build with NO_LIBTRACEEVENT=1)
1193  endif
1194endif
1195
1196# Among the variables below, these:
1197#   perfexecdir
1198#   libbpf_include_dir
1199#   perf_examples_dir
1200#   template_dir
1201#   mandir
1202#   infodir
1203#   htmldir
1204#   ETC_PERFCONFIG (but not sysconfdir)
1205# can be specified as a relative path some/where/else;
1206# this is interpreted as relative to $(prefix) and "perf" at
1207# runtime figures out where they are based on the path to the executable.
1208# This can help installing the suite in a relocatable way.
1209
1210# Make the path relative to DESTDIR, not to prefix
1211ifndef DESTDIR
1212prefix ?= $(HOME)
1213endif
1214bindir_relative = bin
1215bindir = $(abspath $(prefix)/$(bindir_relative))
1216includedir_relative = include
1217includedir = $(abspath $(prefix)/$(includedir_relative))
1218mandir = share/man
1219infodir = share/info
1220perfexecdir = libexec/perf-core
1221# FIXME: system's libbpf header directory, where we expect to find bpf/bpf_helpers.h, for instance
1222libbpf_include_dir = /usr/include
1223perf_examples_dir = lib/perf/examples
1224sharedir = $(prefix)/share
1225template_dir = share/perf-core/templates
1226STRACE_GROUPS_DIR = share/perf-core/strace/groups
1227htmldir = share/doc/perf-doc
1228tipdir = share/doc/perf-tip
1229srcdir = $(srctree)/tools/perf
1230ifeq ($(prefix),/usr)
1231sysconfdir = /etc
1232ETC_PERFCONFIG = $(sysconfdir)/perfconfig
1233else
1234sysconfdir = $(prefix)/etc
1235ETC_PERFCONFIG = etc/perfconfig
1236endif
1237ifndef lib
1238ifeq ($(SRCARCH)$(IS_64_BIT), x861)
1239lib = lib64
1240else
1241lib = lib
1242endif
1243endif # lib
1244libdir = $(prefix)/$(lib)
1245
1246# Shell quote (do not use $(call) to accommodate ancient setups);
1247ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
1248STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
1249DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
1250bindir_SQ = $(subst ','\'',$(bindir))
1251includedir_SQ = $(subst ','\'',$(includedir))
1252mandir_SQ = $(subst ','\'',$(mandir))
1253infodir_SQ = $(subst ','\'',$(infodir))
1254perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
1255libbpf_include_dir_SQ = $(subst ','\'',$(libbpf_include_dir))
1256perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
1257template_dir_SQ = $(subst ','\'',$(template_dir))
1258htmldir_SQ = $(subst ','\'',$(htmldir))
1259tipdir_SQ = $(subst ','\'',$(tipdir))
1260prefix_SQ = $(subst ','\'',$(prefix))
1261sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
1262libdir_SQ = $(subst ','\'',$(libdir))
1263srcdir_SQ = $(subst ','\'',$(srcdir))
1264
1265ifneq ($(filter /%,$(firstword $(perfexecdir))),)
1266perfexec_instdir = $(perfexecdir)
1267perf_include_instdir = $(libbpf_include_dir)
1268perf_examples_instdir = $(perf_examples_dir)
1269STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
1270tip_instdir = $(tipdir)
1271else
1272perfexec_instdir = $(prefix)/$(perfexecdir)
1273perf_include_instdir = $(prefix)/$(libbpf_include_dir)
1274perf_examples_instdir = $(prefix)/$(perf_examples_dir)
1275STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
1276tip_instdir = $(prefix)/$(tipdir)
1277endif
1278perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
1279perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
1280perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
1281STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
1282tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
1283
1284export perfexec_instdir_SQ
1285
1286print_var = $(eval $(print_var_code)) $(info $(MSG))
1287define print_var_code
1288    MSG = $(shell printf '...%40s: %s' $(1) $($(1)))
1289endef
1290
1291ifeq ($(feature_display),1)
1292  $(call feature_display_entries)
1293endif
1294
1295ifeq ($(VF),1)
1296  # Display EXTRA features which are detected manualy
1297  # from here with feature_check call and thus cannot
1298  # be partof global state output.
1299  $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),) $(info $(MSG)))
1300  $(call print_var,prefix)
1301  $(call print_var,bindir)
1302  $(call print_var,libdir)
1303  $(call print_var,sysconfdir)
1304  $(call print_var,LIBUNWIND_DIR)
1305  $(call print_var,LIBDW_DIR)
1306  $(call print_var,JDIR)
1307
1308  ifeq ($(dwarf-post-unwind),1)
1309    $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text)) $(info $(MSG))
1310  endif
1311endif
1312
1313$(info )
1314
1315$(call detected_var,bindir_SQ)
1316$(call detected_var,PYTHON_WORD)
1317ifneq ($(OUTPUT),)
1318$(call detected_var,OUTPUT)
1319endif
1320$(call detected_var,htmldir_SQ)
1321$(call detected_var,infodir_SQ)
1322$(call detected_var,mandir_SQ)
1323$(call detected_var,ETC_PERFCONFIG_SQ)
1324$(call detected_var,STRACE_GROUPS_DIR_SQ)
1325$(call detected_var,prefix_SQ)
1326$(call detected_var,perfexecdir_SQ)
1327$(call detected_var,libbpf_include_dir_SQ)
1328$(call detected_var,perf_examples_dir_SQ)
1329$(call detected_var,tipdir_SQ)
1330$(call detected_var,srcdir_SQ)
1331$(call detected_var,LIBDIR)
1332$(call detected_var,GTK_CFLAGS)
1333$(call detected_var,PERL_EMBED_CCOPTS)
1334$(call detected_var,PYTHON_EMBED_CCOPTS)
1335ifneq ($(BISON_FILE_PREFIX_MAP),)
1336$(call detected_var,BISON_FILE_PREFIX_MAP)
1337endif
1338
1339# re-generate FEATURE-DUMP as we may have called feature_check, found out
1340# extra libraries to add to LDFLAGS of some other test and then redo those
1341# tests, see the block about libbfd, disassembler-four-args, for instance.
1342$(shell rm -f $(FEATURE_DUMP_FILENAME))
1343$(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))
1344