xref: /openbmc/linux/tools/perf/Makefile.config (revision a347279d) 
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 $(SRCARCH),powerpc arm64 s390 mips))
42      NO_SYSCALL_TABLE := 0
43    endif
44  endif
45
46  ifneq ($(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 ($(SRCARCH),riscv)
84  NO_PERF_REGS := 0
85endif
86
87ifeq ($(SRCARCH),csky)
88  NO_PERF_REGS := 0
89endif
90
91ifeq ($(ARCH),s390)
92  NO_PERF_REGS := 0
93  CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
94endif
95
96ifeq ($(ARCH),mips)
97  NO_PERF_REGS := 0
98  CFLAGS += -I$(OUTPUT)arch/mips/include/generated
99  LIBUNWIND_LIBS = -lunwind -lunwind-mips
100endif
101
102ifeq ($(NO_PERF_REGS),0)
103  $(call detected,CONFIG_PERF_REGS)
104endif
105
106# So far there's only x86 and arm libdw unwind support merged in perf.
107# Disable it on all other architectures in case libdw unwind
108# support is detected in system. Add supported architectures
109# to the check.
110ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky riscv))
111  NO_LIBDW_DWARF_UNWIND := 1
112endif
113
114ifeq ($(LIBUNWIND_LIBS),)
115  NO_LIBUNWIND := 1
116endif
117#
118# For linking with debug library, run like:
119#
120#   make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
121#
122
123libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
124define libunwind_arch_set_flags_code
125  FEATURE_CHECK_CFLAGS-libunwind-$(1)  = -I$(LIBUNWIND_DIR)/include
126  FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
127endef
128
129ifdef LIBUNWIND_DIR
130  LIBUNWIND_CFLAGS  = -I$(LIBUNWIND_DIR)/include
131  LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
132  LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64
133  $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
134endif
135
136# Set per-feature check compilation flags
137FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
138FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
139FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
140FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
141
142FEATURE_CHECK_LDFLAGS-libunwind-arm += -lunwind -lunwind-arm
143FEATURE_CHECK_LDFLAGS-libunwind-aarch64 += -lunwind -lunwind-aarch64
144FEATURE_CHECK_LDFLAGS-libunwind-x86 += -lunwind -llzma -lunwind-x86
145FEATURE_CHECK_LDFLAGS-libunwind-x86_64 += -lunwind -llzma -lunwind-x86_64
146
147FEATURE_CHECK_LDFLAGS-libcrypto = -lcrypto
148
149ifdef CSINCLUDES
150  LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
151endif
152OPENCSDLIBS := -lopencsd_c_api
153ifeq ($(findstring -static,${LDFLAGS}),-static)
154  OPENCSDLIBS += -lopencsd -lstdc++
155endif
156ifdef CSLIBS
157  LIBOPENCSD_LDFLAGS := -L$(CSLIBS)
158endif
159FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
160FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
161
162ifeq ($(NO_PERF_REGS),0)
163  CFLAGS += -DHAVE_PERF_REGS_SUPPORT
164endif
165
166# for linking with debug library, run like:
167# make DEBUG=1 LIBDW_DIR=/opt/libdw/
168ifdef LIBDW_DIR
169  LIBDW_CFLAGS  := -I$(LIBDW_DIR)/include
170  LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
171endif
172DWARFLIBS := -ldw
173ifeq ($(findstring -static,${LDFLAGS}),-static)
174  DWARFLIBS += -lelf -lebl -ldl -lz -llzma -lbz2
175endif
176FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
177FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
178
179# for linking with debug library, run like:
180# make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
181ifdef LIBBABELTRACE_DIR
182  LIBBABELTRACE_CFLAGS  := -I$(LIBBABELTRACE_DIR)/include
183  LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
184endif
185FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
186FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
187
188ifdef LIBZSTD_DIR
189  LIBZSTD_CFLAGS  := -I$(LIBZSTD_DIR)/lib
190  LIBZSTD_LDFLAGS := -L$(LIBZSTD_DIR)/lib
191endif
192FEATURE_CHECK_CFLAGS-libzstd := $(LIBZSTD_CFLAGS)
193FEATURE_CHECK_LDFLAGS-libzstd := $(LIBZSTD_LDFLAGS)
194
195FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
196# include ARCH specific config
197-include $(src-perf)/arch/$(SRCARCH)/Makefile
198
199ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
200  CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
201endif
202
203include $(srctree)/tools/scripts/utilities.mak
204
205ifeq ($(call get-executable,$(FLEX)),)
206  dummy := $(error Error: $(FLEX) is missing on this system, please install it)
207endif
208
209ifeq ($(call get-executable,$(BISON)),)
210  dummy := $(error Error: $(BISON) is missing on this system, please install it)
211endif
212
213ifneq ($(OUTPUT),)
214  ifeq ($(shell expr $(shell $(BISON) --version | grep bison | sed -e 's/.\+ \([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/\1\2\3/g') \>\= 371), 1)
215    BISON_FILE_PREFIX_MAP := --file-prefix-map=$(OUTPUT)=
216  endif
217endif
218
219# Treat warnings as errors unless directed not to
220ifneq ($(WERROR),0)
221  CORE_CFLAGS += -Werror
222  CXXFLAGS += -Werror
223  HOSTCFLAGS += -Werror
224endif
225
226ifndef DEBUG
227  DEBUG := 0
228endif
229
230ifeq ($(DEBUG),0)
231ifeq ($(CC_NO_CLANG), 0)
232  CORE_CFLAGS += -O3
233else
234  CORE_CFLAGS += -O6
235endif
236endif
237
238ifdef PARSER_DEBUG
239  PARSER_DEBUG_BISON := -t
240  PARSER_DEBUG_FLEX  := -d
241  CFLAGS             += -DPARSER_DEBUG
242  $(call detected_var,PARSER_DEBUG_BISON)
243  $(call detected_var,PARSER_DEBUG_FLEX)
244endif
245
246# Try different combinations to accommodate systems that only have
247# python[2][3]-config in weird combinations in the following order of
248# priority from lowest to highest:
249#   * python2-config as per pep-0394.
250#   * python-config
251#   * python3-config
252#   * $(PYTHON)-config (If PYTHON is user supplied but PYTHON_CONFIG isn't)
253#
254PYTHON_AUTO := python-config
255PYTHON_AUTO := $(if $(call get-executable,python2-config),python2-config,$(PYTHON_AUTO))
256PYTHON_AUTO := $(if $(call get-executable,python-config),python-config,$(PYTHON_AUTO))
257PYTHON_AUTO := $(if $(call get-executable,python3-config),python3-config,$(PYTHON_AUTO))
258
259# If PYTHON is defined but PYTHON_CONFIG isn't, then take $(PYTHON)-config as if it was the user
260# supplied value for PYTHON_CONFIG. Because it's "user supplied", error out if it doesn't exist.
261ifdef PYTHON
262  ifndef PYTHON_CONFIG
263    PYTHON_CONFIG_AUTO := $(call get-executable,$(PYTHON)-config)
264    PYTHON_CONFIG := $(if $(PYTHON_CONFIG_AUTO),$(PYTHON_CONFIG_AUTO),\
265                          $(call $(error $(PYTHON)-config not found)))
266  endif
267endif
268
269# Select either auto detected python and python-config or use user supplied values if they are
270# defined. get-executable-or-default fails with an error if the first argument is supplied but
271# doesn't exist.
272override PYTHON_CONFIG := $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON_AUTO))
273override PYTHON := $(call get-executable-or-default,PYTHON,$(subst -config,,$(PYTHON_CONFIG)))
274
275grep-libs  = $(filter -l%,$(1))
276strip-libs  = $(filter-out -l%,$(1))
277
278PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
279
280# Python 3.8 changed the output of `python-config --ldflags` to not include the
281# '-lpythonX.Y' flag unless '--embed' is also passed. The feature check for
282# libpython fails if that flag is not included in LDFLAGS
283ifeq ($(shell $(PYTHON_CONFIG_SQ) --ldflags --embed 2>&1 1>/dev/null; echo $$?), 0)
284  PYTHON_CONFIG_LDFLAGS := --ldflags --embed
285else
286  PYTHON_CONFIG_LDFLAGS := --ldflags
287endif
288
289ifdef PYTHON_CONFIG
290  PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) $(PYTHON_CONFIG_LDFLAGS) 2>/dev/null)
291  PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
292  PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
293  PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null)
294  FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
295  ifeq ($(CC_NO_CLANG), 0)
296    PYTHON_EMBED_CCOPTS := $(filter-out -ffat-lto-objects, $(PYTHON_EMBED_CCOPTS))
297  endif
298endif
299
300FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
301FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
302
303FEATURE_CHECK_LDFLAGS-libaio = -lrt
304
305CORE_CFLAGS += -fno-omit-frame-pointer
306CORE_CFLAGS += -ggdb3
307CORE_CFLAGS += -funwind-tables
308CORE_CFLAGS += -Wall
309CORE_CFLAGS += -Wextra
310CORE_CFLAGS += -std=gnu11
311
312CXXFLAGS += -std=gnu++14 -fno-exceptions -fno-rtti
313CXXFLAGS += -Wall
314CXXFLAGS += -fno-omit-frame-pointer
315CXXFLAGS += -ggdb3
316CXXFLAGS += -funwind-tables
317CXXFLAGS += -Wno-strict-aliasing
318
319HOSTCFLAGS += -Wall
320HOSTCFLAGS += -Wextra
321
322# Enforce a non-executable stack, as we may regress (again) in the future by
323# adding assembler files missing the .GNU-stack linker note.
324LDFLAGS += -Wl,-z,noexecstack
325
326EXTLIBS = -lpthread -lrt -lm -ldl
327
328ifneq ($(TCMALLOC),)
329  CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free
330  EXTLIBS += -ltcmalloc
331endif
332
333ifeq ($(FEATURES_DUMP),)
334# We will display at the end of this Makefile.config, using $(call feature_display_entries),
335# as we may retry some feature detection here.
336  FEATURE_DISPLAY_DEFERRED := 1
337include $(srctree)/tools/build/Makefile.feature
338else
339include $(FEATURES_DUMP)
340endif
341
342ifeq ($(feature-stackprotector-all), 1)
343  CORE_CFLAGS += -fstack-protector-all
344endif
345
346ifeq ($(DEBUG),0)
347  ifeq ($(feature-fortify-source), 1)
348    CORE_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
349  endif
350endif
351
352INC_FLAGS += -I$(src-perf)/util/include
353INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
354INC_FLAGS += -I$(srctree)/tools/include/
355INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
356INC_FLAGS += -I$(srctree)/tools/include/uapi
357INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
358INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
359
360# $(obj-perf)      for generated common-cmds.h
361# $(obj-perf)/util for generated bison/flex headers
362ifneq ($(OUTPUT),)
363INC_FLAGS += -I$(obj-perf)/util
364INC_FLAGS += -I$(obj-perf)
365endif
366
367INC_FLAGS += -I$(src-perf)/util
368INC_FLAGS += -I$(src-perf)
369
370CORE_CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
371
372CFLAGS   += $(CORE_CFLAGS) $(INC_FLAGS)
373CXXFLAGS += $(INC_FLAGS)
374
375LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS)
376
377ifeq ($(feature-pthread-attr-setaffinity-np), 1)
378  CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
379endif
380
381ifeq ($(feature-pthread-barrier), 1)
382  CFLAGS += -DHAVE_PTHREAD_BARRIER
383endif
384
385ifndef NO_BIONIC
386  $(call feature_check,bionic)
387  ifeq ($(feature-bionic), 1)
388    BIONIC := 1
389    CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE
390    CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE
391    EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
392    EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
393  endif
394endif
395
396ifeq ($(feature-eventfd), 1)
397  CFLAGS += -DHAVE_EVENTFD_SUPPORT
398endif
399
400ifeq ($(feature-get_current_dir_name), 1)
401  CFLAGS += -DHAVE_GET_CURRENT_DIR_NAME
402endif
403
404ifeq ($(feature-gettid), 1)
405  CFLAGS += -DHAVE_GETTID
406endif
407
408ifeq ($(feature-file-handle), 1)
409  CFLAGS += -DHAVE_FILE_HANDLE
410endif
411
412ifdef NO_LIBELF
413  NO_DWARF := 1
414  NO_DEMANGLE := 1
415  NO_LIBUNWIND := 1
416  NO_LIBDW_DWARF_UNWIND := 1
417  NO_LIBBPF := 1
418  NO_JVMTI := 1
419else
420  ifeq ($(feature-libelf), 0)
421    ifeq ($(feature-glibc), 1)
422      LIBC_SUPPORT := 1
423    endif
424    ifeq ($(BIONIC),1)
425      LIBC_SUPPORT := 1
426    endif
427    ifeq ($(LIBC_SUPPORT),1)
428      msg := $(warning No libelf found. Disables 'probe' tool, jvmti and BPF support in 'perf record'. Please install libelf-dev, libelf-devel or elfutils-libelf-devel);
429
430      NO_LIBELF := 1
431      NO_DWARF := 1
432      NO_DEMANGLE := 1
433      NO_LIBUNWIND := 1
434      NO_LIBDW_DWARF_UNWIND := 1
435      NO_LIBBPF := 1
436      NO_JVMTI := 1
437    else
438      ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
439        ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
440          msg := $(error No libasan found, please install libasan);
441        endif
442      endif
443
444      ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
445        ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
446          msg := $(error No libubsan found, please install libubsan);
447        endif
448      endif
449
450      ifneq ($(filter s% -static%,$(LDFLAGS),),)
451        msg := $(error No static glibc found, please install glibc-static);
452      else
453        msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
454      endif
455    endif
456  else
457    ifndef NO_LIBDW_DWARF_UNWIND
458      ifneq ($(feature-libdw-dwarf-unwind),1)
459        NO_LIBDW_DWARF_UNWIND := 1
460        msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
461      endif
462    endif
463    ifneq ($(feature-dwarf), 1)
464      ifndef NO_DWARF
465        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);
466        NO_DWARF := 1
467      endif
468    else
469      ifneq ($(feature-dwarf_getlocations), 1)
470        msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
471      else
472        CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
473      endif # dwarf_getlocations
474    endif # Dwarf support
475  endif # libelf support
476endif # NO_LIBELF
477
478ifeq ($(feature-glibc), 1)
479  CFLAGS += -DHAVE_GLIBC_SUPPORT
480endif
481
482ifeq ($(feature-libaio), 1)
483  ifndef NO_AIO
484    CFLAGS += -DHAVE_AIO_SUPPORT
485  endif
486endif
487
488ifdef NO_DWARF
489  NO_LIBDW_DWARF_UNWIND := 1
490endif
491
492ifeq ($(feature-sched_getcpu), 1)
493  CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
494endif
495
496ifeq ($(feature-setns), 1)
497  CFLAGS += -DHAVE_SETNS_SUPPORT
498  $(call detected,CONFIG_SETNS)
499endif
500
501ifdef CORESIGHT
502  $(call feature_check,libopencsd)
503  ifeq ($(feature-libopencsd), 1)
504    CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
505    ifeq ($(feature-reallocarray), 0)
506      CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
507    endif
508    LDFLAGS += $(LIBOPENCSD_LDFLAGS)
509    EXTLIBS += $(OPENCSDLIBS)
510    $(call detected,CONFIG_LIBOPENCSD)
511    ifdef CSTRACE_RAW
512      CFLAGS += -DCS_DEBUG_RAW
513      ifeq (${CSTRACE_RAW}, packed)
514        CFLAGS += -DCS_RAW_PACKED
515      endif
516    endif
517  else
518    dummy := $(error Error: No libopencsd library found or the version is not up-to-date. Please install recent libopencsd to build with CORESIGHT=1)
519  endif
520endif
521
522ifndef NO_LIBELF
523  CFLAGS += -DHAVE_LIBELF_SUPPORT
524  EXTLIBS += -lelf
525  $(call detected,CONFIG_LIBELF)
526
527  ifeq ($(feature-libelf-getphdrnum), 1)
528    CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
529  endif
530
531  ifeq ($(feature-libelf-gelf_getnote), 1)
532    CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
533  else
534    msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
535  endif
536
537  ifeq ($(feature-libelf-getshdrstrndx), 1)
538    CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
539  endif
540
541  ifndef NO_LIBDEBUGINFOD
542    $(call feature_check,libdebuginfod)
543    ifeq ($(feature-libdebuginfod), 1)
544      CFLAGS += -DHAVE_DEBUGINFOD_SUPPORT
545      EXTLIBS += -ldebuginfod
546    endif
547  endif
548
549  ifndef NO_DWARF
550    ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
551      msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
552      NO_DWARF := 1
553    else
554      CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
555      LDFLAGS += $(LIBDW_LDFLAGS)
556      EXTLIBS += ${DWARFLIBS}
557      $(call detected,CONFIG_DWARF)
558    endif # PERF_HAVE_DWARF_REGS
559  endif # NO_DWARF
560
561  ifndef NO_LIBBPF
562    ifeq ($(feature-bpf), 1)
563      CFLAGS += -DHAVE_LIBBPF_SUPPORT
564      $(call detected,CONFIG_LIBBPF)
565
566      # detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
567      $(call feature_check,libbpf)
568      ifdef LIBBPF_DYNAMIC
569        ifeq ($(feature-libbpf), 1)
570          EXTLIBS += -lbpf
571          $(call detected,CONFIG_LIBBPF_DYNAMIC)
572
573          $(call feature_check,libbpf-btf__load_from_kernel_by_id)
574          ifeq ($(feature-libbpf-btf__load_from_kernel_by_id), 1)
575            CFLAGS += -DHAVE_LIBBPF_BTF__LOAD_FROM_KERNEL_BY_ID
576          endif
577          $(call feature_check,libbpf-bpf_prog_load)
578          ifeq ($(feature-libbpf-bpf_prog_load), 1)
579            CFLAGS += -DHAVE_LIBBPF_BPF_PROG_LOAD
580          endif
581          $(call feature_check,libbpf-bpf_object__next_program)
582          ifeq ($(feature-libbpf-bpf_object__next_program), 1)
583            CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_PROGRAM
584          endif
585          $(call feature_check,libbpf-bpf_object__next_map)
586          ifeq ($(feature-libbpf-bpf_object__next_map), 1)
587            CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_MAP
588          endif
589          $(call feature_check,libbpf-bpf_program__set_insns)
590          ifeq ($(feature-libbpf-bpf_program__set_insns), 1)
591            CFLAGS += -DHAVE_LIBBPF_BPF_PROGRAM__SET_INSNS
592          else
593            dummy := $(error Error: libbpf devel library needs to be >= 0.8.0 to build with LIBBPF_DYNAMIC, update or build statically with the version that comes with the kernel sources);
594          endif
595          $(call feature_check,libbpf-btf__raw_data)
596          ifeq ($(feature-libbpf-btf__raw_data), 1)
597            CFLAGS += -DHAVE_LIBBPF_BTF__RAW_DATA
598          endif
599          $(call feature_check,libbpf-bpf_map_create)
600          ifeq ($(feature-libbpf-bpf_map_create), 1)
601            CFLAGS += -DHAVE_LIBBPF_BPF_MAP_CREATE
602          endif
603        else
604          dummy := $(error Error: No libbpf devel library found, please install libbpf-devel);
605        endif
606      else
607        # Libbpf will be built as a static library from tools/lib/bpf.
608	LIBBPF_STATIC := 1
609	CFLAGS += -DHAVE_LIBBPF_BTF__LOAD_FROM_KERNEL_BY_ID
610        CFLAGS += -DHAVE_LIBBPF_BPF_PROG_LOAD
611        CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_PROGRAM
612        CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_MAP
613        CFLAGS += -DHAVE_LIBBPF_BPF_PROGRAM__SET_INSNS
614        CFLAGS += -DHAVE_LIBBPF_BTF__RAW_DATA
615        CFLAGS += -DHAVE_LIBBPF_BPF_MAP_CREATE
616      endif
617    endif
618
619    ifndef NO_DWARF
620      ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
621        CFLAGS += -DHAVE_BPF_PROLOGUE
622        $(call detected,CONFIG_BPF_PROLOGUE)
623      else
624        msg := $(warning BPF prologue is not supported by architecture $(SRCARCH), missing regs_query_register_offset());
625      endif
626    else
627      msg := $(warning DWARF support is off, BPF prologue is disabled);
628    endif
629
630  endif # NO_LIBBPF
631endif # NO_LIBELF
632
633ifndef NO_SDT
634  ifneq ($(feature-sdt), 1)
635    msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
636    NO_SDT := 1;
637  else
638    CFLAGS += -DHAVE_SDT_EVENT
639    $(call detected,CONFIG_SDT_EVENT)
640  endif
641endif
642
643ifdef PERF_HAVE_JITDUMP
644  ifndef NO_LIBELF
645    $(call detected,CONFIG_JITDUMP)
646    CFLAGS += -DHAVE_JITDUMP
647  endif
648endif
649
650ifeq ($(SRCARCH),powerpc)
651  ifndef NO_DWARF
652    CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
653  endif
654endif
655
656ifndef NO_LIBUNWIND
657  have_libunwind :=
658
659  $(call feature_check,libunwind-x86)
660  ifeq ($(feature-libunwind-x86), 1)
661    $(call detected,CONFIG_LIBUNWIND_X86)
662    CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
663    LDFLAGS += -lunwind-x86
664    EXTLIBS_LIBUNWIND += -lunwind-x86
665    have_libunwind = 1
666  endif
667
668  $(call feature_check,libunwind-aarch64)
669  ifeq ($(feature-libunwind-aarch64), 1)
670    $(call detected,CONFIG_LIBUNWIND_AARCH64)
671    CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
672    LDFLAGS += -lunwind-aarch64
673    EXTLIBS_LIBUNWIND += -lunwind-aarch64
674    have_libunwind = 1
675    $(call feature_check,libunwind-debug-frame-aarch64)
676    ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
677      msg := $(warning No debug_frame support found in libunwind-aarch64);
678      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
679    endif
680  endif
681
682  ifneq ($(feature-libunwind), 1)
683    msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
684    NO_LOCAL_LIBUNWIND := 1
685  else
686    have_libunwind := 1
687    $(call detected,CONFIG_LOCAL_LIBUNWIND)
688  endif
689
690  ifneq ($(have_libunwind), 1)
691    NO_LIBUNWIND := 1
692  endif
693else
694  NO_LOCAL_LIBUNWIND := 1
695endif
696
697ifndef NO_LIBBPF
698  ifneq ($(feature-bpf), 1)
699    msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
700    NO_LIBBPF := 1
701  endif
702endif
703
704ifdef BUILD_BPF_SKEL
705  $(call feature_check,clang-bpf-co-re)
706  ifeq ($(feature-clang-bpf-co-re), 0)
707    dummy := $(error Error: clang too old/not installed. Please install recent clang to build with BUILD_BPF_SKEL)
708  endif
709  ifeq ($(filter -DHAVE_LIBBPF_SUPPORT, $(CFLAGS)),)
710    dummy := $(error Error: BPF skeleton support requires libbpf)
711  endif
712  $(call detected,CONFIG_PERF_BPF_SKEL)
713  CFLAGS += -DHAVE_BPF_SKEL
714endif
715
716dwarf-post-unwind := 1
717dwarf-post-unwind-text := BUG
718
719# setup DWARF post unwinder
720ifdef NO_LIBUNWIND
721  ifdef NO_LIBDW_DWARF_UNWIND
722    msg := $(warning Disabling post unwind, no support found.);
723    dwarf-post-unwind := 0
724  else
725    dwarf-post-unwind-text := libdw
726    $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
727  endif
728else
729  dwarf-post-unwind-text := libunwind
730  $(call detected,CONFIG_LIBUNWIND)
731  # Enable libunwind support by default.
732  ifndef NO_LIBDW_DWARF_UNWIND
733    NO_LIBDW_DWARF_UNWIND := 1
734  endif
735endif
736
737ifeq ($(dwarf-post-unwind),1)
738  CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
739  $(call detected,CONFIG_DWARF_UNWIND)
740else
741  NO_DWARF_UNWIND := 1
742endif
743
744ifndef NO_LOCAL_LIBUNWIND
745  ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
746    $(call feature_check,libunwind-debug-frame)
747    ifneq ($(feature-libunwind-debug-frame), 1)
748      msg := $(warning No debug_frame support found in libunwind);
749      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
750    endif
751  else
752    # non-ARM has no dwarf_find_debug_frame() function:
753    CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
754  endif
755  EXTLIBS += $(LIBUNWIND_LIBS)
756  LDFLAGS += $(LIBUNWIND_LIBS)
757endif
758ifeq ($(findstring -static,${LDFLAGS}),-static)
759  # gcc -static links libgcc_eh which contans piece of libunwind
760  LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
761endif
762
763ifndef NO_LIBUNWIND
764  CFLAGS  += -DHAVE_LIBUNWIND_SUPPORT
765  CFLAGS  += $(LIBUNWIND_CFLAGS)
766  LDFLAGS += $(LIBUNWIND_LDFLAGS)
767  EXTLIBS += $(EXTLIBS_LIBUNWIND)
768endif
769
770ifneq ($(NO_LIBTRACEEVENT),1)
771  ifeq ($(NO_SYSCALL_TABLE),0)
772    $(call detected,CONFIG_TRACE)
773  else
774    ifndef NO_LIBAUDIT
775      $(call feature_check,libaudit)
776      ifneq ($(feature-libaudit), 1)
777        msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
778        NO_LIBAUDIT := 1
779      else
780        CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
781        EXTLIBS += -laudit
782        $(call detected,CONFIG_TRACE)
783      endif
784    endif
785  endif
786endif
787
788ifndef NO_LIBCRYPTO
789  ifneq ($(feature-libcrypto), 1)
790    msg := $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev);
791    NO_LIBCRYPTO := 1
792  else
793    CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
794    EXTLIBS += -lcrypto
795    $(call detected,CONFIG_CRYPTO)
796  endif
797endif
798
799ifdef NO_NEWT
800  NO_SLANG=1
801endif
802
803ifndef NO_SLANG
804  ifneq ($(feature-libslang), 1)
805    ifneq ($(feature-libslang-include-subdir), 1)
806      msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
807      NO_SLANG := 1
808    else
809      CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
810    endif
811  endif
812  ifndef NO_SLANG
813    # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
814    CFLAGS += -DHAVE_SLANG_SUPPORT
815    EXTLIBS += -lslang
816    $(call detected,CONFIG_SLANG)
817  endif
818endif
819
820ifdef GTK2
821  FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
822  $(call feature_check,gtk2)
823  ifneq ($(feature-gtk2), 1)
824    msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
825    NO_GTK2 := 1
826  else
827    $(call feature_check,gtk2-infobar)
828    ifeq ($(feature-gtk2-infobar), 1)
829      GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
830    endif
831    CFLAGS += -DHAVE_GTK2_SUPPORT
832    GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
833    GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
834    EXTLIBS += -ldl
835  endif
836endif
837
838ifdef NO_LIBPERL
839  CFLAGS += -DNO_LIBPERL
840else
841  PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
842  PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
843  PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
844  PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
845  PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
846  PERL_EMBED_CCOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
847  PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
848  FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
849
850  ifneq ($(feature-libperl), 1)
851    CFLAGS += -DNO_LIBPERL
852    NO_LIBPERL := 1
853    msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
854  else
855    LDFLAGS += $(PERL_EMBED_LDFLAGS)
856    EXTLIBS += $(PERL_EMBED_LIBADD)
857    CFLAGS += -DHAVE_LIBPERL_SUPPORT
858    ifeq ($(CC_NO_CLANG), 0)
859      CFLAGS += -Wno-compound-token-split-by-macro
860    endif
861    $(call detected,CONFIG_LIBPERL)
862  endif
863endif
864
865ifeq ($(feature-timerfd), 1)
866  CFLAGS += -DHAVE_TIMERFD_SUPPORT
867else
868  msg := $(warning No timerfd support. Disables 'perf kvm stat live');
869endif
870
871disable-python = $(eval $(disable-python_code))
872define disable-python_code
873  CFLAGS += -DNO_LIBPYTHON
874  $(warning $1)
875  NO_LIBPYTHON := 1
876endef
877
878PYTHON_EXTENSION_SUFFIX := '.so'
879ifdef NO_LIBPYTHON
880  $(call disable-python,Python support disabled by user)
881else
882
883  ifndef PYTHON
884    $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
885  else
886    PYTHON_WORD := $(call shell-wordify,$(PYTHON))
887
888    ifndef PYTHON_CONFIG
889      $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
890    else
891
892      ifneq ($(feature-libpython), 1)
893        $(call disable-python,No 'Python.h' was found: disables Python support - please install python-devel/python-dev)
894      else
895         LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
896         EXTLIBS += $(PYTHON_EMBED_LIBADD)
897         PYTHON_SETUPTOOLS_INSTALLED := $(shell $(PYTHON) -c 'import setuptools;' 2> /dev/null && echo "yes" || echo "no")
898         ifeq ($(PYTHON_SETUPTOOLS_INSTALLED), yes)
899           PYTHON_EXTENSION_SUFFIX := $(shell $(PYTHON) -c 'from importlib import machinery; print(machinery.EXTENSION_SUFFIXES[0])')
900           LANG_BINDINGS += $(obj-perf)python/perf$(PYTHON_EXTENSION_SUFFIX)
901	 else
902           msg := $(warning Missing python setuptools, the python binding won't be built, please install python3-setuptools or equivalent);
903         endif
904         CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
905         $(call detected,CONFIG_LIBPYTHON)
906      endif
907    endif
908  endif
909endif
910
911ifneq ($(NO_JEVENTS),1)
912  ifeq ($(wildcard pmu-events/arch/$(SRCARCH)/mapfile.csv),)
913    NO_JEVENTS := 1
914  endif
915endif
916ifneq ($(NO_JEVENTS),1)
917  NO_JEVENTS := 0
918  ifndef PYTHON
919    $(warning No python interpreter disabling jevent generation)
920    NO_JEVENTS := 1
921  else
922    # jevents.py uses f-strings present in Python 3.6 released in Dec. 2016.
923    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)
924    ifneq ($(JEVENTS_PYTHON_GOOD), 1)
925      $(warning Python interpreter too old (older than 3.6) disabling jevent generation)
926      NO_JEVENTS := 1
927    endif
928  endif
929endif
930
931ifndef NO_LIBBFD
932  ifeq ($(feature-libbfd), 1)
933    EXTLIBS += -lbfd -lopcodes
934  else
935    # we are on a system that requires -liberty and (maybe) -lz
936    # to link against -lbfd; test each case individually here
937
938    # call all detections now so we get correct
939    # status in VF output
940    $(call feature_check,libbfd-liberty)
941    $(call feature_check,libbfd-liberty-z)
942
943    ifeq ($(feature-libbfd-liberty), 1)
944      EXTLIBS += -lbfd -lopcodes -liberty
945    else
946      ifeq ($(feature-libbfd-liberty-z), 1)
947        EXTLIBS += -lbfd -lopcodes -liberty -lz
948      endif
949    endif
950    $(call feature_check,disassembler-four-args)
951    $(call feature_check,disassembler-init-styled)
952  endif
953
954  ifeq ($(feature-libbfd-buildid), 1)
955    CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
956  else
957    msg := $(warning Old version of libbfd/binutils things like PE executable profiling will not be available);
958  endif
959endif
960
961ifdef NO_DEMANGLE
962  CFLAGS += -DNO_DEMANGLE
963else
964  ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
965    EXTLIBS += -liberty
966  else
967    ifeq ($(filter -liberty,$(EXTLIBS)),)
968      $(call feature_check,cplus-demangle)
969
970      # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
971      # or any of 'bfd iberty z' trinity
972      ifeq ($(feature-cplus-demangle), 1)
973        EXTLIBS += -liberty
974      else
975        msg := $(warning No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling)
976        CFLAGS += -DNO_DEMANGLE
977      endif
978    endif
979  endif
980
981  ifneq ($(filter -liberty,$(EXTLIBS)),)
982    CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
983  endif
984endif
985
986ifneq ($(filter -lbfd,$(EXTLIBS)),)
987  CFLAGS += -DHAVE_LIBBFD_SUPPORT
988endif
989
990ifndef NO_ZLIB
991  ifeq ($(feature-zlib), 1)
992    CFLAGS += -DHAVE_ZLIB_SUPPORT
993    EXTLIBS += -lz
994    $(call detected,CONFIG_ZLIB)
995  else
996    NO_ZLIB := 1
997  endif
998endif
999
1000ifndef NO_LZMA
1001  ifeq ($(feature-lzma), 1)
1002    CFLAGS += -DHAVE_LZMA_SUPPORT
1003    EXTLIBS += -llzma
1004    $(call detected,CONFIG_LZMA)
1005  else
1006    msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
1007    NO_LZMA := 1
1008  endif
1009endif
1010
1011ifndef NO_LIBZSTD
1012  ifeq ($(feature-libzstd), 1)
1013    CFLAGS += -DHAVE_ZSTD_SUPPORT
1014    CFLAGS += $(LIBZSTD_CFLAGS)
1015    LDFLAGS += $(LIBZSTD_LDFLAGS)
1016    EXTLIBS += -lzstd
1017    $(call detected,CONFIG_ZSTD)
1018  else
1019    msg := $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR);
1020    NO_LIBZSTD := 1
1021  endif
1022endif
1023
1024ifndef NO_LIBCAP
1025  ifeq ($(feature-libcap), 1)
1026    CFLAGS += -DHAVE_LIBCAP_SUPPORT
1027    EXTLIBS += -lcap
1028    $(call detected,CONFIG_LIBCAP)
1029  else
1030    msg := $(warning No libcap found, disables capability support, please install libcap-devel/libcap-dev);
1031    NO_LIBCAP := 1
1032  endif
1033endif
1034
1035ifndef NO_BACKTRACE
1036  ifeq ($(feature-backtrace), 1)
1037    CFLAGS += -DHAVE_BACKTRACE_SUPPORT
1038  endif
1039endif
1040
1041ifndef NO_LIBNUMA
1042  ifeq ($(feature-libnuma), 0)
1043    msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
1044    NO_LIBNUMA := 1
1045  else
1046    ifeq ($(feature-numa_num_possible_cpus), 0)
1047      msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
1048      NO_LIBNUMA := 1
1049    else
1050      CFLAGS += -DHAVE_LIBNUMA_SUPPORT
1051      EXTLIBS += -lnuma
1052      $(call detected,CONFIG_NUMA)
1053    endif
1054  endif
1055endif
1056
1057ifdef HAVE_KVM_STAT_SUPPORT
1058    CFLAGS += -DHAVE_KVM_STAT_SUPPORT
1059endif
1060
1061ifeq ($(feature-disassembler-four-args), 1)
1062    CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
1063endif
1064
1065ifeq ($(feature-disassembler-init-styled), 1)
1066    CFLAGS += -DDISASM_INIT_STYLED
1067endif
1068
1069ifeq (${IS_64_BIT}, 1)
1070  ifndef NO_PERF_READ_VDSO32
1071    $(call feature_check,compile-32)
1072    ifeq ($(feature-compile-32), 1)
1073      CFLAGS += -DHAVE_PERF_READ_VDSO32
1074    else
1075      NO_PERF_READ_VDSO32 := 1
1076    endif
1077  endif
1078  ifneq ($(SRCARCH), x86)
1079    NO_PERF_READ_VDSOX32 := 1
1080  endif
1081  ifndef NO_PERF_READ_VDSOX32
1082    $(call feature_check,compile-x32)
1083    ifeq ($(feature-compile-x32), 1)
1084      CFLAGS += -DHAVE_PERF_READ_VDSOX32
1085    else
1086      NO_PERF_READ_VDSOX32 := 1
1087    endif
1088  endif
1089else
1090  NO_PERF_READ_VDSO32 := 1
1091  NO_PERF_READ_VDSOX32 := 1
1092endif
1093
1094ifndef NO_LIBBABELTRACE
1095  $(call feature_check,libbabeltrace)
1096  ifeq ($(feature-libbabeltrace), 1)
1097    CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
1098    LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
1099    EXTLIBS += -lbabeltrace-ctf
1100    $(call detected,CONFIG_LIBBABELTRACE)
1101  else
1102    msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
1103  endif
1104endif
1105
1106ifndef NO_AUXTRACE
1107  ifeq ($(SRCARCH),x86)
1108    ifeq ($(feature-get_cpuid), 0)
1109      msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
1110      NO_AUXTRACE := 1
1111    endif
1112  endif
1113  ifndef NO_AUXTRACE
1114    $(call detected,CONFIG_AUXTRACE)
1115    CFLAGS += -DHAVE_AUXTRACE_SUPPORT
1116    ifeq ($(feature-reallocarray), 0)
1117      CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
1118    endif
1119  endif
1120endif
1121
1122ifndef NO_JVMTI
1123  ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
1124    JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
1125  else
1126    ifneq (,$(wildcard /usr/sbin/alternatives))
1127      JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
1128    endif
1129  endif
1130  ifndef JDIR
1131    $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
1132    NO_JVMTI := 1
1133  endif
1134endif
1135
1136ifndef NO_JVMTI
1137  FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
1138  $(call feature_check,jvmti)
1139  ifeq ($(feature-jvmti), 1)
1140    $(call detected_var,JDIR)
1141    ifndef NO_JVMTI_CMLR
1142      FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
1143      $(call feature_check,jvmti-cmlr)
1144      ifeq ($(feature-jvmti-cmlr), 1)
1145        CFLAGS += -DHAVE_JVMTI_CMLR
1146      endif
1147    endif # NO_JVMTI_CMLR
1148  else
1149    $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
1150    NO_JVMTI := 1
1151  endif
1152endif
1153
1154USE_CXX = 0
1155USE_CLANGLLVM = 0
1156ifdef LIBCLANGLLVM
1157  $(call feature_check,cxx)
1158  ifneq ($(feature-cxx), 1)
1159    msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
1160  else
1161    $(call feature_check,llvm)
1162    $(call feature_check,llvm-version)
1163    ifneq ($(feature-llvm), 1)
1164      msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
1165    else
1166      $(call feature_check,clang)
1167      ifneq ($(feature-clang), 1)
1168        msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
1169      else
1170        CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
1171        CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
1172        $(call detected,CONFIG_CXX)
1173        $(call detected,CONFIG_CLANGLLVM)
1174	USE_CXX = 1
1175	USE_LLVM = 1
1176	USE_CLANG = 1
1177        ifneq ($(feature-llvm-version),1)
1178          msg := $(warning This version of LLVM is not tested. May cause build errors)
1179        endif
1180      endif
1181    endif
1182  endif
1183endif
1184
1185ifdef LIBPFM4
1186  $(call feature_check,libpfm4)
1187  ifeq ($(feature-libpfm4), 1)
1188    CFLAGS += -DHAVE_LIBPFM
1189    EXTLIBS += -lpfm
1190    ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
1191    $(call detected,CONFIG_LIBPFM4)
1192  else
1193    msg := $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev);
1194    NO_LIBPFM4 := 1
1195  endif
1196endif
1197
1198# libtraceevent is a recommended dependency picked up from the system.
1199ifneq ($(NO_LIBTRACEEVENT),1)
1200  $(call feature_check,libtraceevent)
1201  ifeq ($(feature-libtraceevent), 1)
1202    CFLAGS += -DHAVE_LIBTRACEEVENT
1203    EXTLIBS += -ltraceevent
1204    LIBTRACEEVENT_VERSION := $(shell $(PKG_CONFIG) --modversion libtraceevent)
1205    LIBTRACEEVENT_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1206    LIBTRACEEVENT_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1207    LIBTRACEEVENT_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1208    LIBTRACEEVENT_VERSION_CPP := $(shell expr $(LIBTRACEEVENT_VERSION_1) \* 255 \* 255 + $(LIBTRACEEVENT_VERSION_2) \* 255 + $(LIBTRACEEVENT_VERSION_3))
1209    CFLAGS += -DLIBTRACEEVENT_VERSION=$(LIBTRACEEVENT_VERSION_CPP)
1210    $(call detected,CONFIG_LIBTRACEEVENT)
1211  else
1212    dummy := $(warning Warning: libtraceevent is missing limiting functionality, please install libtraceevent-dev/libtraceevent-devel)
1213  endif
1214
1215  $(call feature_check,libtracefs)
1216  ifeq ($(feature-libtracefs), 1)
1217    EXTLIBS += -ltracefs
1218    LIBTRACEFS_VERSION := $(shell $(PKG_CONFIG) --modversion libtracefs)
1219    LIBTRACEFS_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEFS_VERSION)))
1220    LIBTRACEFS_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEFS_VERSION)))
1221    LIBTRACEFS_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEFS_VERSION)))
1222    LIBTRACEFS_VERSION_CPP := $(shell expr $(LIBTRACEFS_VERSION_1) \* 255 \* 255 + $(LIBTRACEFS_VERSION_2) \* 255 + $(LIBTRACEFS_VERSION_3))
1223    CFLAGS += -DLIBTRACEFS_VERSION=$(LIBTRACEFS_VERSION_CPP)
1224  endif
1225endif
1226
1227# Among the variables below, these:
1228#   perfexecdir
1229#   libbpf_include_dir
1230#   perf_examples_dir
1231#   template_dir
1232#   mandir
1233#   infodir
1234#   htmldir
1235#   ETC_PERFCONFIG (but not sysconfdir)
1236# can be specified as a relative path some/where/else;
1237# this is interpreted as relative to $(prefix) and "perf" at
1238# runtime figures out where they are based on the path to the executable.
1239# This can help installing the suite in a relocatable way.
1240
1241# Make the path relative to DESTDIR, not to prefix
1242ifndef DESTDIR
1243prefix ?= $(HOME)
1244endif
1245bindir_relative = bin
1246bindir = $(abspath $(prefix)/$(bindir_relative))
1247includedir_relative = include
1248includedir = $(abspath $(prefix)/$(includedir_relative))
1249mandir = share/man
1250infodir = share/info
1251perfexecdir = libexec/perf-core
1252# FIXME: system's libbpf header directory, where we expect to find bpf/bpf_helpers.h, for instance
1253libbpf_include_dir = /usr/include
1254perf_examples_dir = lib/perf/examples
1255sharedir = $(prefix)/share
1256template_dir = share/perf-core/templates
1257STRACE_GROUPS_DIR = share/perf-core/strace/groups
1258htmldir = share/doc/perf-doc
1259tipdir = share/doc/perf-tip
1260srcdir = $(srctree)/tools/perf
1261ifeq ($(prefix),/usr)
1262sysconfdir = /etc
1263ETC_PERFCONFIG = $(sysconfdir)/perfconfig
1264else
1265sysconfdir = $(prefix)/etc
1266ETC_PERFCONFIG = etc/perfconfig
1267endif
1268ifndef lib
1269ifeq ($(SRCARCH)$(IS_64_BIT), x861)
1270lib = lib64
1271else
1272lib = lib
1273endif
1274endif # lib
1275libdir = $(prefix)/$(lib)
1276
1277# Shell quote (do not use $(call) to accommodate ancient setups);
1278ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
1279STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
1280DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
1281bindir_SQ = $(subst ','\'',$(bindir))
1282includedir_SQ = $(subst ','\'',$(includedir))
1283mandir_SQ = $(subst ','\'',$(mandir))
1284infodir_SQ = $(subst ','\'',$(infodir))
1285perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
1286libbpf_include_dir_SQ = $(subst ','\'',$(libbpf_include_dir))
1287perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
1288template_dir_SQ = $(subst ','\'',$(template_dir))
1289htmldir_SQ = $(subst ','\'',$(htmldir))
1290tipdir_SQ = $(subst ','\'',$(tipdir))
1291prefix_SQ = $(subst ','\'',$(prefix))
1292sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
1293libdir_SQ = $(subst ','\'',$(libdir))
1294srcdir_SQ = $(subst ','\'',$(srcdir))
1295
1296ifneq ($(filter /%,$(firstword $(perfexecdir))),)
1297perfexec_instdir = $(perfexecdir)
1298perf_include_instdir = $(libbpf_include_dir)
1299perf_examples_instdir = $(perf_examples_dir)
1300STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
1301tip_instdir = $(tipdir)
1302else
1303perfexec_instdir = $(prefix)/$(perfexecdir)
1304perf_include_instdir = $(prefix)/$(libbpf_include_dir)
1305perf_examples_instdir = $(prefix)/$(perf_examples_dir)
1306STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
1307tip_instdir = $(prefix)/$(tipdir)
1308endif
1309perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
1310perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
1311perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
1312STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
1313tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
1314
1315export perfexec_instdir_SQ
1316
1317print_var = $(eval $(print_var_code)) $(info $(MSG))
1318define print_var_code
1319    MSG = $(shell printf '...%40s: %s' $(1) $($(1)))
1320endef
1321
1322ifeq ($(feature_display),1)
1323  $(call feature_display_entries)
1324endif
1325
1326ifeq ($(VF),1)
1327  # Display EXTRA features which are detected manualy
1328  # from here with feature_check call and thus cannot
1329  # be partof global state output.
1330  $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),) $(info $(MSG)))
1331  $(call print_var,prefix)
1332  $(call print_var,bindir)
1333  $(call print_var,libdir)
1334  $(call print_var,sysconfdir)
1335  $(call print_var,LIBUNWIND_DIR)
1336  $(call print_var,LIBDW_DIR)
1337  $(call print_var,JDIR)
1338
1339  ifeq ($(dwarf-post-unwind),1)
1340    $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text)) $(info $(MSG))
1341  endif
1342endif
1343
1344$(info )
1345
1346$(call detected_var,bindir_SQ)
1347$(call detected_var,PYTHON_WORD)
1348ifneq ($(OUTPUT),)
1349$(call detected_var,OUTPUT)
1350endif
1351$(call detected_var,htmldir_SQ)
1352$(call detected_var,infodir_SQ)
1353$(call detected_var,mandir_SQ)
1354$(call detected_var,ETC_PERFCONFIG_SQ)
1355$(call detected_var,STRACE_GROUPS_DIR_SQ)
1356$(call detected_var,prefix_SQ)
1357$(call detected_var,perfexecdir_SQ)
1358$(call detected_var,libbpf_include_dir_SQ)
1359$(call detected_var,perf_examples_dir_SQ)
1360$(call detected_var,tipdir_SQ)
1361$(call detected_var,srcdir_SQ)
1362$(call detected_var,LIBDIR)
1363$(call detected_var,GTK_CFLAGS)
1364$(call detected_var,PERL_EMBED_CCOPTS)
1365$(call detected_var,PYTHON_EMBED_CCOPTS)
1366ifneq ($(BISON_FILE_PREFIX_MAP),)
1367$(call detected_var,BISON_FILE_PREFIX_MAP)
1368endif
1369
1370# re-generate FEATURE-DUMP as we may have called feature_check, found out
1371# extra libraries to add to LDFLAGS of some other test and then redo those
1372# tests.
1373$(shell rm -f $(FEATURE_DUMP_FILENAME))
1374$(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))
1375