xref: /openbmc/linux/tools/perf/Makefile.config (revision dca571ed) 
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=gnu99
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$(srctree)/tools/lib/perf/include
353INC_FLAGS += -I$(src-perf)/util/include
354INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
355INC_FLAGS += -I$(srctree)/tools/include/
356INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
357INC_FLAGS += -I$(srctree)/tools/include/uapi
358INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
359INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
360
361# $(obj-perf)      for generated common-cmds.h
362# $(obj-perf)/util for generated bison/flex headers
363ifneq ($(OUTPUT),)
364INC_FLAGS += -I$(obj-perf)/util
365INC_FLAGS += -I$(obj-perf)
366endif
367
368INC_FLAGS += -I$(src-perf)/util
369INC_FLAGS += -I$(src-perf)
370INC_FLAGS += -I$(srctree)/tools/lib/
371
372CORE_CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
373
374CFLAGS   += $(CORE_CFLAGS) $(INC_FLAGS)
375CXXFLAGS += $(INC_FLAGS)
376
377LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS)
378
379ifeq ($(feature-pthread-attr-setaffinity-np), 1)
380  CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
381endif
382
383ifeq ($(feature-pthread-barrier), 1)
384  CFLAGS += -DHAVE_PTHREAD_BARRIER
385endif
386
387ifndef NO_BIONIC
388  $(call feature_check,bionic)
389  ifeq ($(feature-bionic), 1)
390    BIONIC := 1
391    CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE
392    CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE
393    EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
394    EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
395  endif
396endif
397
398ifeq ($(feature-eventfd), 1)
399  CFLAGS += -DHAVE_EVENTFD_SUPPORT
400endif
401
402ifeq ($(feature-get_current_dir_name), 1)
403  CFLAGS += -DHAVE_GET_CURRENT_DIR_NAME
404endif
405
406ifeq ($(feature-gettid), 1)
407  CFLAGS += -DHAVE_GETTID
408endif
409
410ifeq ($(feature-file-handle), 1)
411  CFLAGS += -DHAVE_FILE_HANDLE
412endif
413
414ifdef NO_LIBELF
415  NO_DWARF := 1
416  NO_DEMANGLE := 1
417  NO_LIBUNWIND := 1
418  NO_LIBDW_DWARF_UNWIND := 1
419  NO_LIBBPF := 1
420  NO_JVMTI := 1
421else
422  ifeq ($(feature-libelf), 0)
423    ifeq ($(feature-glibc), 1)
424      LIBC_SUPPORT := 1
425    endif
426    ifeq ($(BIONIC),1)
427      LIBC_SUPPORT := 1
428    endif
429    ifeq ($(LIBC_SUPPORT),1)
430      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);
431
432      NO_LIBELF := 1
433      NO_DWARF := 1
434      NO_DEMANGLE := 1
435      NO_LIBUNWIND := 1
436      NO_LIBDW_DWARF_UNWIND := 1
437      NO_LIBBPF := 1
438      NO_JVMTI := 1
439    else
440      ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
441        ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
442          msg := $(error No libasan found, please install libasan);
443        endif
444      endif
445
446      ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
447        ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
448          msg := $(error No libubsan found, please install libubsan);
449        endif
450      endif
451
452      ifneq ($(filter s% -static%,$(LDFLAGS),),)
453        msg := $(error No static glibc found, please install glibc-static);
454      else
455        msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
456      endif
457    endif
458  else
459    ifndef NO_LIBDW_DWARF_UNWIND
460      ifneq ($(feature-libdw-dwarf-unwind),1)
461        NO_LIBDW_DWARF_UNWIND := 1
462        msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
463      endif
464    endif
465    ifneq ($(feature-dwarf), 1)
466      ifndef NO_DWARF
467        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);
468        NO_DWARF := 1
469      endif
470    else
471      ifneq ($(feature-dwarf_getlocations), 1)
472        msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
473      else
474        CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
475      endif # dwarf_getlocations
476    endif # Dwarf support
477  endif # libelf support
478endif # NO_LIBELF
479
480ifeq ($(feature-glibc), 1)
481  CFLAGS += -DHAVE_GLIBC_SUPPORT
482endif
483
484ifeq ($(feature-libaio), 1)
485  ifndef NO_AIO
486    CFLAGS += -DHAVE_AIO_SUPPORT
487  endif
488endif
489
490ifdef NO_DWARF
491  NO_LIBDW_DWARF_UNWIND := 1
492endif
493
494ifeq ($(feature-sched_getcpu), 1)
495  CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
496endif
497
498ifeq ($(feature-setns), 1)
499  CFLAGS += -DHAVE_SETNS_SUPPORT
500  $(call detected,CONFIG_SETNS)
501endif
502
503ifdef CORESIGHT
504  $(call feature_check,libopencsd)
505  ifeq ($(feature-libopencsd), 1)
506    CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
507    ifeq ($(feature-reallocarray), 0)
508      CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
509    endif
510    LDFLAGS += $(LIBOPENCSD_LDFLAGS)
511    EXTLIBS += $(OPENCSDLIBS)
512    $(call detected,CONFIG_LIBOPENCSD)
513    ifdef CSTRACE_RAW
514      CFLAGS += -DCS_DEBUG_RAW
515      ifeq (${CSTRACE_RAW}, packed)
516        CFLAGS += -DCS_RAW_PACKED
517      endif
518    endif
519  else
520    dummy := $(error Error: No libopencsd library found or the version is not up-to-date. Please install recent libopencsd to build with CORESIGHT=1)
521  endif
522endif
523
524ifndef NO_LIBELF
525  CFLAGS += -DHAVE_LIBELF_SUPPORT
526  EXTLIBS += -lelf
527  $(call detected,CONFIG_LIBELF)
528
529  ifeq ($(feature-libelf-getphdrnum), 1)
530    CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
531  endif
532
533  ifeq ($(feature-libelf-gelf_getnote), 1)
534    CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
535  else
536    msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
537  endif
538
539  ifeq ($(feature-libelf-getshdrstrndx), 1)
540    CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
541  endif
542
543  ifndef NO_LIBDEBUGINFOD
544    $(call feature_check,libdebuginfod)
545    ifeq ($(feature-libdebuginfod), 1)
546      CFLAGS += -DHAVE_DEBUGINFOD_SUPPORT
547      EXTLIBS += -ldebuginfod
548    endif
549  endif
550
551  ifndef NO_DWARF
552    ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
553      msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
554      NO_DWARF := 1
555    else
556      CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
557      LDFLAGS += $(LIBDW_LDFLAGS)
558      EXTLIBS += ${DWARFLIBS}
559      $(call detected,CONFIG_DWARF)
560    endif # PERF_HAVE_DWARF_REGS
561  endif # NO_DWARF
562
563  ifndef NO_LIBBPF
564    ifeq ($(feature-bpf), 1)
565      CFLAGS += -DHAVE_LIBBPF_SUPPORT
566      $(call detected,CONFIG_LIBBPF)
567
568      # detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
569      $(call feature_check,libbpf)
570      ifdef LIBBPF_DYNAMIC
571        ifeq ($(feature-libbpf), 1)
572          EXTLIBS += -lbpf
573          $(call detected,CONFIG_LIBBPF_DYNAMIC)
574
575          $(call feature_check,libbpf-btf__load_from_kernel_by_id)
576          ifeq ($(feature-libbpf-btf__load_from_kernel_by_id), 1)
577            CFLAGS += -DHAVE_LIBBPF_BTF__LOAD_FROM_KERNEL_BY_ID
578          endif
579          $(call feature_check,libbpf-bpf_prog_load)
580          ifeq ($(feature-libbpf-bpf_prog_load), 1)
581            CFLAGS += -DHAVE_LIBBPF_BPF_PROG_LOAD
582          endif
583          $(call feature_check,libbpf-bpf_object__next_program)
584          ifeq ($(feature-libbpf-bpf_object__next_program), 1)
585            CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_PROGRAM
586          endif
587          $(call feature_check,libbpf-bpf_object__next_map)
588          ifeq ($(feature-libbpf-bpf_object__next_map), 1)
589            CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_MAP
590          endif
591          $(call feature_check,libbpf-btf__raw_data)
592          ifeq ($(feature-libbpf-btf__raw_data), 1)
593            CFLAGS += -DHAVE_LIBBPF_BTF__RAW_DATA
594          endif
595          $(call feature_check,libbpf-bpf_map_create)
596          ifeq ($(feature-libbpf-bpf_map_create), 1)
597            CFLAGS += -DHAVE_LIBBPF_BPF_MAP_CREATE
598          endif
599        else
600          dummy := $(error Error: No libbpf devel library found, please install libbpf-devel);
601        endif
602      else
603	CFLAGS += -DHAVE_LIBBPF_BTF__LOAD_FROM_KERNEL_BY_ID
604        CFLAGS += -DHAVE_LIBBPF_BPF_PROG_LOAD
605        CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_PROGRAM
606        CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_MAP
607        CFLAGS += -DHAVE_LIBBPF_BTF__RAW_DATA
608        CFLAGS += -DHAVE_LIBBPF_BPF_MAP_CREATE
609      endif
610    endif
611
612    ifndef NO_DWARF
613      ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
614        CFLAGS += -DHAVE_BPF_PROLOGUE
615        $(call detected,CONFIG_BPF_PROLOGUE)
616      else
617        msg := $(warning BPF prologue is not supported by architecture $(SRCARCH), missing regs_query_register_offset());
618      endif
619    else
620      msg := $(warning DWARF support is off, BPF prologue is disabled);
621    endif
622
623  endif # NO_LIBBPF
624endif # NO_LIBELF
625
626ifndef NO_SDT
627  ifneq ($(feature-sdt), 1)
628    msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
629    NO_SDT := 1;
630  else
631    CFLAGS += -DHAVE_SDT_EVENT
632    $(call detected,CONFIG_SDT_EVENT)
633  endif
634endif
635
636ifdef PERF_HAVE_JITDUMP
637  ifndef NO_LIBELF
638    $(call detected,CONFIG_JITDUMP)
639    CFLAGS += -DHAVE_JITDUMP
640  endif
641endif
642
643ifeq ($(SRCARCH),powerpc)
644  ifndef NO_DWARF
645    CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
646  endif
647endif
648
649ifndef NO_LIBUNWIND
650  have_libunwind :=
651
652  $(call feature_check,libunwind-x86)
653  ifeq ($(feature-libunwind-x86), 1)
654    $(call detected,CONFIG_LIBUNWIND_X86)
655    CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
656    LDFLAGS += -lunwind-x86
657    EXTLIBS_LIBUNWIND += -lunwind-x86
658    have_libunwind = 1
659  endif
660
661  $(call feature_check,libunwind-aarch64)
662  ifeq ($(feature-libunwind-aarch64), 1)
663    $(call detected,CONFIG_LIBUNWIND_AARCH64)
664    CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
665    LDFLAGS += -lunwind-aarch64
666    EXTLIBS_LIBUNWIND += -lunwind-aarch64
667    have_libunwind = 1
668    $(call feature_check,libunwind-debug-frame-aarch64)
669    ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
670      msg := $(warning No debug_frame support found in libunwind-aarch64);
671      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
672    endif
673  endif
674
675  ifneq ($(feature-libunwind), 1)
676    msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
677    NO_LOCAL_LIBUNWIND := 1
678  else
679    have_libunwind := 1
680    $(call detected,CONFIG_LOCAL_LIBUNWIND)
681  endif
682
683  ifneq ($(have_libunwind), 1)
684    NO_LIBUNWIND := 1
685  endif
686else
687  NO_LOCAL_LIBUNWIND := 1
688endif
689
690ifndef NO_LIBBPF
691  ifneq ($(feature-bpf), 1)
692    msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
693    NO_LIBBPF := 1
694  endif
695endif
696
697ifdef BUILD_BPF_SKEL
698  $(call feature_check,clang-bpf-co-re)
699  ifeq ($(feature-clang-bpf-co-re), 0)
700    dummy := $(error Error: clang too old/not installed. Please install recent clang to build with BUILD_BPF_SKEL)
701  endif
702  ifeq ($(filter -DHAVE_LIBBPF_SUPPORT, $(CFLAGS)),)
703    dummy := $(error Error: BPF skeleton support requires libbpf)
704  endif
705  $(call detected,CONFIG_PERF_BPF_SKEL)
706  CFLAGS += -DHAVE_BPF_SKEL
707endif
708
709dwarf-post-unwind := 1
710dwarf-post-unwind-text := BUG
711
712# setup DWARF post unwinder
713ifdef NO_LIBUNWIND
714  ifdef NO_LIBDW_DWARF_UNWIND
715    msg := $(warning Disabling post unwind, no support found.);
716    dwarf-post-unwind := 0
717  else
718    dwarf-post-unwind-text := libdw
719    $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
720  endif
721else
722  dwarf-post-unwind-text := libunwind
723  $(call detected,CONFIG_LIBUNWIND)
724  # Enable libunwind support by default.
725  ifndef NO_LIBDW_DWARF_UNWIND
726    NO_LIBDW_DWARF_UNWIND := 1
727  endif
728endif
729
730ifeq ($(dwarf-post-unwind),1)
731  CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
732  $(call detected,CONFIG_DWARF_UNWIND)
733else
734  NO_DWARF_UNWIND := 1
735endif
736
737ifndef NO_LOCAL_LIBUNWIND
738  ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
739    $(call feature_check,libunwind-debug-frame)
740    ifneq ($(feature-libunwind-debug-frame), 1)
741      msg := $(warning No debug_frame support found in libunwind);
742      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
743    endif
744  else
745    # non-ARM has no dwarf_find_debug_frame() function:
746    CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
747  endif
748  EXTLIBS += $(LIBUNWIND_LIBS)
749  LDFLAGS += $(LIBUNWIND_LIBS)
750endif
751ifeq ($(findstring -static,${LDFLAGS}),-static)
752  # gcc -static links libgcc_eh which contans piece of libunwind
753  LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
754endif
755
756ifndef NO_LIBUNWIND
757  CFLAGS  += -DHAVE_LIBUNWIND_SUPPORT
758  CFLAGS  += $(LIBUNWIND_CFLAGS)
759  LDFLAGS += $(LIBUNWIND_LDFLAGS)
760  EXTLIBS += $(EXTLIBS_LIBUNWIND)
761endif
762
763ifeq ($(NO_SYSCALL_TABLE),0)
764  $(call detected,CONFIG_TRACE)
765else
766  ifndef NO_LIBAUDIT
767    $(call feature_check,libaudit)
768    ifneq ($(feature-libaudit), 1)
769      msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
770      NO_LIBAUDIT := 1
771    else
772      CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
773      EXTLIBS += -laudit
774      $(call detected,CONFIG_TRACE)
775    endif
776  endif
777endif
778
779ifndef NO_LIBCRYPTO
780  ifneq ($(feature-libcrypto), 1)
781    msg := $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev);
782    NO_LIBCRYPTO := 1
783  else
784    CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
785    EXTLIBS += -lcrypto
786    $(call detected,CONFIG_CRYPTO)
787  endif
788endif
789
790ifdef NO_NEWT
791  NO_SLANG=1
792endif
793
794ifndef NO_SLANG
795  ifneq ($(feature-libslang), 1)
796    ifneq ($(feature-libslang-include-subdir), 1)
797      msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
798      NO_SLANG := 1
799    else
800      CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
801    endif
802  endif
803  ifndef NO_SLANG
804    # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
805    CFLAGS += -DHAVE_SLANG_SUPPORT
806    EXTLIBS += -lslang
807    $(call detected,CONFIG_SLANG)
808  endif
809endif
810
811ifdef GTK2
812  FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
813  $(call feature_check,gtk2)
814  ifneq ($(feature-gtk2), 1)
815    msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
816    NO_GTK2 := 1
817  else
818    $(call feature_check,gtk2-infobar)
819    ifeq ($(feature-gtk2-infobar), 1)
820      GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
821    endif
822    CFLAGS += -DHAVE_GTK2_SUPPORT
823    GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
824    GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
825    EXTLIBS += -ldl
826  endif
827endif
828
829ifdef NO_LIBPERL
830  CFLAGS += -DNO_LIBPERL
831else
832  PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
833  PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
834  PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
835  PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
836  PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
837  PERL_EMBED_CCOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
838  PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
839  FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
840
841  ifneq ($(feature-libperl), 1)
842    CFLAGS += -DNO_LIBPERL
843    NO_LIBPERL := 1
844    msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
845  else
846    LDFLAGS += $(PERL_EMBED_LDFLAGS)
847    EXTLIBS += $(PERL_EMBED_LIBADD)
848    CFLAGS += -DHAVE_LIBPERL_SUPPORT
849    ifeq ($(CC_NO_CLANG), 0)
850      CFLAGS += -Wno-compound-token-split-by-macro
851    endif
852    $(call detected,CONFIG_LIBPERL)
853  endif
854endif
855
856ifeq ($(feature-timerfd), 1)
857  CFLAGS += -DHAVE_TIMERFD_SUPPORT
858else
859  msg := $(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
869ifdef NO_LIBPYTHON
870  $(call disable-python,Python support disabled by user)
871else
872
873  ifndef PYTHON
874    $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
875  else
876    PYTHON_WORD := $(call shell-wordify,$(PYTHON))
877
878    ifndef PYTHON_CONFIG
879      $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
880    else
881
882      ifneq ($(feature-libpython), 1)
883        $(call disable-python,No 'Python.h' (for Python 2.x support) was found: disables Python support - please install python-devel/python-dev)
884      else
885         LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
886         EXTLIBS += $(PYTHON_EMBED_LIBADD)
887         LANG_BINDINGS += $(obj-perf)python/perf.so
888         CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
889         $(call detected,CONFIG_LIBPYTHON)
890      endif
891    endif
892  endif
893endif
894
895ifneq ($(NO_JEVENTS),1)
896  ifeq ($(wildcard pmu-events/arch/$(SRCARCH)/mapfile.csv),)
897    NO_JEVENTS := 1
898  endif
899endif
900ifneq ($(NO_JEVENTS),1)
901  NO_JEVENTS := 0
902  ifndef PYTHON
903    $(warning No python interpreter disabling jevent generation)
904    NO_JEVENTS := 1
905  else
906    # jevents.py uses f-strings present in Python 3.6 released in Dec. 2016.
907    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)
908    ifneq ($(JEVENTS_PYTHON_GOOD), 1)
909      $(warning Python interpreter too old (older than 3.6) disabling jevent generation)
910      NO_JEVENTS := 1
911    endif
912  endif
913endif
914
915ifndef NO_LIBBFD
916  ifeq ($(feature-libbfd), 1)
917    EXTLIBS += -lbfd -lopcodes
918  else
919    # we are on a system that requires -liberty and (maybe) -lz
920    # to link against -lbfd; test each case individually here
921
922    # call all detections now so we get correct
923    # status in VF output
924    $(call feature_check,libbfd-liberty)
925    $(call feature_check,libbfd-liberty-z)
926
927    ifeq ($(feature-libbfd-liberty), 1)
928      EXTLIBS += -lbfd -lopcodes -liberty
929    else
930      ifeq ($(feature-libbfd-liberty-z), 1)
931        EXTLIBS += -lbfd -lopcodes -liberty -lz
932      endif
933    endif
934    $(call feature_check,disassembler-four-args)
935    $(call feature_check,disassembler-init-styled)
936  endif
937
938  ifeq ($(feature-libbfd-buildid), 1)
939    CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
940  else
941    msg := $(warning Old version of libbfd/binutils things like PE executable profiling will not be available);
942  endif
943endif
944
945ifdef NO_DEMANGLE
946  CFLAGS += -DNO_DEMANGLE
947else
948  ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
949    EXTLIBS += -liberty
950  else
951    ifeq ($(filter -liberty,$(EXTLIBS)),)
952      $(call feature_check,cplus-demangle)
953
954      # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
955      # or any of 'bfd iberty z' trinity
956      ifeq ($(feature-cplus-demangle), 1)
957        EXTLIBS += -liberty
958      else
959        msg := $(warning No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling)
960        CFLAGS += -DNO_DEMANGLE
961      endif
962    endif
963  endif
964
965  ifneq ($(filter -liberty,$(EXTLIBS)),)
966    CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
967  endif
968endif
969
970ifneq ($(filter -lbfd,$(EXTLIBS)),)
971  CFLAGS += -DHAVE_LIBBFD_SUPPORT
972endif
973
974ifndef NO_ZLIB
975  ifeq ($(feature-zlib), 1)
976    CFLAGS += -DHAVE_ZLIB_SUPPORT
977    EXTLIBS += -lz
978    $(call detected,CONFIG_ZLIB)
979  else
980    NO_ZLIB := 1
981  endif
982endif
983
984ifndef NO_LZMA
985  ifeq ($(feature-lzma), 1)
986    CFLAGS += -DHAVE_LZMA_SUPPORT
987    EXTLIBS += -llzma
988    $(call detected,CONFIG_LZMA)
989  else
990    msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
991    NO_LZMA := 1
992  endif
993endif
994
995ifndef NO_LIBZSTD
996  ifeq ($(feature-libzstd), 1)
997    CFLAGS += -DHAVE_ZSTD_SUPPORT
998    CFLAGS += $(LIBZSTD_CFLAGS)
999    LDFLAGS += $(LIBZSTD_LDFLAGS)
1000    EXTLIBS += -lzstd
1001    $(call detected,CONFIG_ZSTD)
1002  else
1003    msg := $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR);
1004    NO_LIBZSTD := 1
1005  endif
1006endif
1007
1008ifndef NO_LIBCAP
1009  ifeq ($(feature-libcap), 1)
1010    CFLAGS += -DHAVE_LIBCAP_SUPPORT
1011    EXTLIBS += -lcap
1012    $(call detected,CONFIG_LIBCAP)
1013  else
1014    msg := $(warning No libcap found, disables capability support, please install libcap-devel/libcap-dev);
1015    NO_LIBCAP := 1
1016  endif
1017endif
1018
1019ifndef NO_BACKTRACE
1020  ifeq ($(feature-backtrace), 1)
1021    CFLAGS += -DHAVE_BACKTRACE_SUPPORT
1022  endif
1023endif
1024
1025ifndef NO_LIBNUMA
1026  ifeq ($(feature-libnuma), 0)
1027    msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
1028    NO_LIBNUMA := 1
1029  else
1030    ifeq ($(feature-numa_num_possible_cpus), 0)
1031      msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
1032      NO_LIBNUMA := 1
1033    else
1034      CFLAGS += -DHAVE_LIBNUMA_SUPPORT
1035      EXTLIBS += -lnuma
1036      $(call detected,CONFIG_NUMA)
1037    endif
1038  endif
1039endif
1040
1041ifdef HAVE_KVM_STAT_SUPPORT
1042    CFLAGS += -DHAVE_KVM_STAT_SUPPORT
1043endif
1044
1045ifeq ($(feature-disassembler-four-args), 1)
1046    CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
1047endif
1048
1049ifeq ($(feature-disassembler-init-styled), 1)
1050    CFLAGS += -DDISASM_INIT_STYLED
1051endif
1052
1053ifeq (${IS_64_BIT}, 1)
1054  ifndef NO_PERF_READ_VDSO32
1055    $(call feature_check,compile-32)
1056    ifeq ($(feature-compile-32), 1)
1057      CFLAGS += -DHAVE_PERF_READ_VDSO32
1058    else
1059      NO_PERF_READ_VDSO32 := 1
1060    endif
1061  endif
1062  ifneq ($(SRCARCH), x86)
1063    NO_PERF_READ_VDSOX32 := 1
1064  endif
1065  ifndef NO_PERF_READ_VDSOX32
1066    $(call feature_check,compile-x32)
1067    ifeq ($(feature-compile-x32), 1)
1068      CFLAGS += -DHAVE_PERF_READ_VDSOX32
1069    else
1070      NO_PERF_READ_VDSOX32 := 1
1071    endif
1072  endif
1073else
1074  NO_PERF_READ_VDSO32 := 1
1075  NO_PERF_READ_VDSOX32 := 1
1076endif
1077
1078ifndef NO_LIBBABELTRACE
1079  $(call feature_check,libbabeltrace)
1080  ifeq ($(feature-libbabeltrace), 1)
1081    CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
1082    LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
1083    EXTLIBS += -lbabeltrace-ctf
1084    $(call detected,CONFIG_LIBBABELTRACE)
1085  else
1086    msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
1087  endif
1088endif
1089
1090ifndef NO_AUXTRACE
1091  ifeq ($(SRCARCH),x86)
1092    ifeq ($(feature-get_cpuid), 0)
1093      msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
1094      NO_AUXTRACE := 1
1095    endif
1096  endif
1097  ifndef NO_AUXTRACE
1098    $(call detected,CONFIG_AUXTRACE)
1099    CFLAGS += -DHAVE_AUXTRACE_SUPPORT
1100    ifeq ($(feature-reallocarray), 0)
1101      CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
1102    endif
1103  endif
1104endif
1105
1106ifndef NO_JVMTI
1107  ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
1108    JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
1109  else
1110    ifneq (,$(wildcard /usr/sbin/alternatives))
1111      JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
1112    endif
1113  endif
1114  ifndef JDIR
1115    $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
1116    NO_JVMTI := 1
1117  endif
1118endif
1119
1120ifndef NO_JVMTI
1121  FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
1122  $(call feature_check,jvmti)
1123  ifeq ($(feature-jvmti), 1)
1124    $(call detected_var,JDIR)
1125    ifndef NO_JVMTI_CMLR
1126      FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
1127      $(call feature_check,jvmti-cmlr)
1128      ifeq ($(feature-jvmti-cmlr), 1)
1129        CFLAGS += -DHAVE_JVMTI_CMLR
1130      endif
1131    endif # NO_JVMTI_CMLR
1132  else
1133    $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
1134    NO_JVMTI := 1
1135  endif
1136endif
1137
1138USE_CXX = 0
1139USE_CLANGLLVM = 0
1140ifdef LIBCLANGLLVM
1141  $(call feature_check,cxx)
1142  ifneq ($(feature-cxx), 1)
1143    msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
1144  else
1145    $(call feature_check,llvm)
1146    $(call feature_check,llvm-version)
1147    ifneq ($(feature-llvm), 1)
1148      msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
1149    else
1150      $(call feature_check,clang)
1151      ifneq ($(feature-clang), 1)
1152        msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
1153      else
1154        CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
1155        CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
1156        $(call detected,CONFIG_CXX)
1157        $(call detected,CONFIG_CLANGLLVM)
1158	USE_CXX = 1
1159	USE_LLVM = 1
1160	USE_CLANG = 1
1161        ifneq ($(feature-llvm-version),1)
1162          msg := $(warning This version of LLVM is not tested. May cause build errors)
1163        endif
1164      endif
1165    endif
1166  endif
1167endif
1168
1169ifdef LIBPFM4
1170  $(call feature_check,libpfm4)
1171  ifeq ($(feature-libpfm4), 1)
1172    CFLAGS += -DHAVE_LIBPFM
1173    EXTLIBS += -lpfm
1174    ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
1175    $(call detected,CONFIG_LIBPFM4)
1176  else
1177    msg := $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev);
1178    NO_LIBPFM4 := 1
1179  endif
1180endif
1181
1182ifdef LIBTRACEEVENT_DYNAMIC
1183  $(call feature_check,libtraceevent)
1184  ifeq ($(feature-libtraceevent), 1)
1185    EXTLIBS += -ltraceevent
1186    LIBTRACEEVENT_VERSION := $(shell $(PKG_CONFIG) --modversion libtraceevent)
1187    LIBTRACEEVENT_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1188    LIBTRACEEVENT_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1189    LIBTRACEEVENT_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1190    LIBTRACEEVENT_VERSION_CPP := $(shell expr $(LIBTRACEEVENT_VERSION_1) \* 255 \* 255 + $(LIBTRACEEVENT_VERSION_2) \* 255 + $(LIBTRACEEVENT_VERSION_3))
1191    CFLAGS += -DLIBTRACEEVENT_VERSION=$(LIBTRACEEVENT_VERSION_CPP)
1192  else
1193    dummy := $(error Error: No libtraceevent devel library found, please install libtraceevent-devel);
1194  endif
1195endif
1196
1197ifdef LIBTRACEFS_DYNAMIC
1198  $(call feature_check,libtracefs)
1199  ifeq ($(feature-libtracefs), 1)
1200    EXTLIBS += -ltracefs
1201    LIBTRACEFS_VERSION := $(shell $(PKG_CONFIG) --modversion libtracefs)
1202    LIBTRACEFS_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEFS_VERSION)))
1203    LIBTRACEFS_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEFS_VERSION)))
1204    LIBTRACEFS_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEFS_VERSION)))
1205    LIBTRACEFS_VERSION_CPP := $(shell expr $(LIBTRACEFS_VERSION_1) \* 255 \* 255 + $(LIBTRACEFS_VERSION_2) \* 255 + $(LIBTRACEFS_VERSION_3))
1206    CFLAGS += -DLIBTRACEFS_VERSION=$(LIBTRACEFS_VERSION_CPP)
1207  else
1208    dummy := $(error Error: No libtracefs devel library found, please install libtracefs-dev);
1209  endif
1210endif
1211
1212# Among the variables below, these:
1213#   perfexecdir
1214#   perf_include_dir
1215#   perf_examples_dir
1216#   template_dir
1217#   mandir
1218#   infodir
1219#   htmldir
1220#   ETC_PERFCONFIG (but not sysconfdir)
1221# can be specified as a relative path some/where/else;
1222# this is interpreted as relative to $(prefix) and "perf" at
1223# runtime figures out where they are based on the path to the executable.
1224# This can help installing the suite in a relocatable way.
1225
1226# Make the path relative to DESTDIR, not to prefix
1227ifndef DESTDIR
1228prefix ?= $(HOME)
1229endif
1230bindir_relative = bin
1231bindir = $(abspath $(prefix)/$(bindir_relative))
1232includedir_relative = include
1233includedir = $(abspath $(prefix)/$(includedir_relative))
1234mandir = share/man
1235infodir = share/info
1236perfexecdir = libexec/perf-core
1237perf_include_dir = lib/perf/include
1238perf_examples_dir = lib/perf/examples
1239sharedir = $(prefix)/share
1240template_dir = share/perf-core/templates
1241STRACE_GROUPS_DIR = share/perf-core/strace/groups
1242htmldir = share/doc/perf-doc
1243tipdir = share/doc/perf-tip
1244srcdir = $(srctree)/tools/perf
1245ifeq ($(prefix),/usr)
1246sysconfdir = /etc
1247ETC_PERFCONFIG = $(sysconfdir)/perfconfig
1248else
1249sysconfdir = $(prefix)/etc
1250ETC_PERFCONFIG = etc/perfconfig
1251endif
1252ifndef lib
1253ifeq ($(SRCARCH)$(IS_64_BIT), x861)
1254lib = lib64
1255else
1256lib = lib
1257endif
1258endif # lib
1259libdir = $(prefix)/$(lib)
1260
1261# Shell quote (do not use $(call) to accommodate ancient setups);
1262ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
1263STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
1264DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
1265bindir_SQ = $(subst ','\'',$(bindir))
1266includedir_SQ = $(subst ','\'',$(includedir))
1267mandir_SQ = $(subst ','\'',$(mandir))
1268infodir_SQ = $(subst ','\'',$(infodir))
1269perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
1270perf_include_dir_SQ = $(subst ','\'',$(perf_include_dir))
1271perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
1272template_dir_SQ = $(subst ','\'',$(template_dir))
1273htmldir_SQ = $(subst ','\'',$(htmldir))
1274tipdir_SQ = $(subst ','\'',$(tipdir))
1275prefix_SQ = $(subst ','\'',$(prefix))
1276sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
1277libdir_SQ = $(subst ','\'',$(libdir))
1278srcdir_SQ = $(subst ','\'',$(srcdir))
1279
1280ifneq ($(filter /%,$(firstword $(perfexecdir))),)
1281perfexec_instdir = $(perfexecdir)
1282perf_include_instdir = $(perf_include_dir)
1283perf_examples_instdir = $(perf_examples_dir)
1284STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
1285tip_instdir = $(tipdir)
1286else
1287perfexec_instdir = $(prefix)/$(perfexecdir)
1288perf_include_instdir = $(prefix)/$(perf_include_dir)
1289perf_examples_instdir = $(prefix)/$(perf_examples_dir)
1290STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
1291tip_instdir = $(prefix)/$(tipdir)
1292endif
1293perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
1294perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
1295perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
1296STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
1297tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
1298
1299# If we install to $(HOME) we keep the traceevent default:
1300# $(HOME)/.traceevent/plugins
1301# Otherwise we install plugins into the global $(libdir).
1302ifdef DESTDIR
1303plugindir=$(libdir)/traceevent/plugins
1304plugindir_SQ= $(subst ','\'',$(plugindir))
1305endif
1306
1307print_var = $(eval $(print_var_code)) $(info $(MSG))
1308define print_var_code
1309    MSG = $(shell printf '...%40s: %s' $(1) $($(1)))
1310endef
1311
1312ifeq ($(feature_display),1)
1313  $(call feature_display_entries)
1314endif
1315
1316ifeq ($(VF),1)
1317  # Display EXTRA features which are detected manualy
1318  # from here with feature_check call and thus cannot
1319  # be partof global state output.
1320  $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),) $(info $(MSG)))
1321  $(call print_var,prefix)
1322  $(call print_var,bindir)
1323  $(call print_var,libdir)
1324  $(call print_var,sysconfdir)
1325  $(call print_var,LIBUNWIND_DIR)
1326  $(call print_var,LIBDW_DIR)
1327  $(call print_var,JDIR)
1328
1329  ifeq ($(dwarf-post-unwind),1)
1330    $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text)) $(info $(MSG))
1331  endif
1332endif
1333
1334$(info )
1335
1336$(call detected_var,bindir_SQ)
1337$(call detected_var,PYTHON_WORD)
1338ifneq ($(OUTPUT),)
1339$(call detected_var,OUTPUT)
1340endif
1341$(call detected_var,htmldir_SQ)
1342$(call detected_var,infodir_SQ)
1343$(call detected_var,mandir_SQ)
1344$(call detected_var,ETC_PERFCONFIG_SQ)
1345$(call detected_var,STRACE_GROUPS_DIR_SQ)
1346$(call detected_var,prefix_SQ)
1347$(call detected_var,perfexecdir_SQ)
1348$(call detected_var,perf_include_dir_SQ)
1349$(call detected_var,perf_examples_dir_SQ)
1350$(call detected_var,tipdir_SQ)
1351$(call detected_var,srcdir_SQ)
1352$(call detected_var,LIBDIR)
1353$(call detected_var,GTK_CFLAGS)
1354$(call detected_var,PERL_EMBED_CCOPTS)
1355$(call detected_var,PYTHON_EMBED_CCOPTS)
1356ifneq ($(BISON_FILE_PREFIX_MAP),)
1357$(call detected_var,BISON_FILE_PREFIX_MAP)
1358endif
1359
1360# re-generate FEATURE-DUMP as we may have called feature_check, found out
1361# extra libraries to add to LDFLAGS of some other test and then redo those
1362# tests.
1363$(shell rm -f $(FEATURE_DUMP_FILENAME))
1364$(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))
1365