xref: /linux/tools/perf/Makefile.config (revision bb5b94f5bbe75470912b70fb08880fc5273aa62d) 
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))
20
21include $(srctree)/tools/scripts/Makefile.arch
22
23$(call detected_var,SRCARCH)
24
25NO_PERF_REGS := 1
26
27ifneq ($(NO_SYSCALL_TABLE),1)
28  NO_SYSCALL_TABLE := 1
29
30  ifeq ($(SRCARCH),x86)
31    ifeq (${IS_64_BIT}, 1)
32      NO_SYSCALL_TABLE := 0
33    endif
34  else
35    ifeq ($(SRCARCH),$(filter $(SRCARCH),powerpc arm64 s390 mips))
36      NO_SYSCALL_TABLE := 0
37    endif
38  endif
39
40  ifneq ($(NO_SYSCALL_TABLE),1)
41    CFLAGS += -DHAVE_SYSCALL_TABLE_SUPPORT
42  endif
43endif
44
45# Additional ARCH settings for ppc
46ifeq ($(SRCARCH),powerpc)
47  NO_PERF_REGS := 0
48  CFLAGS += -I$(OUTPUT)arch/powerpc/include/generated
49  LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
50endif
51
52# Additional ARCH settings for x86
53ifeq ($(SRCARCH),x86)
54  $(call detected,CONFIG_X86)
55  ifeq (${IS_64_BIT}, 1)
56    CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT -I$(OUTPUT)arch/x86/include/generated
57    ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
58    LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma
59    $(call detected,CONFIG_X86_64)
60  else
61    LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
62  endif
63  NO_PERF_REGS := 0
64endif
65
66ifeq ($(SRCARCH),arm)
67  NO_PERF_REGS := 0
68  LIBUNWIND_LIBS = -lunwind -lunwind-arm
69endif
70
71ifeq ($(SRCARCH),arm64)
72  NO_PERF_REGS := 0
73  CFLAGS += -I$(OUTPUT)arch/arm64/include/generated
74  LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
75endif
76
77ifeq ($(SRCARCH),riscv)
78  NO_PERF_REGS := 0
79endif
80
81ifeq ($(SRCARCH),csky)
82  NO_PERF_REGS := 0
83endif
84
85ifeq ($(ARCH),s390)
86  NO_PERF_REGS := 0
87  CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
88endif
89
90ifeq ($(ARCH),mips)
91  NO_PERF_REGS := 0
92  CFLAGS += -I$(OUTPUT)arch/mips/include/generated
93  LIBUNWIND_LIBS = -lunwind -lunwind-mips
94endif
95
96ifeq ($(NO_PERF_REGS),0)
97  $(call detected,CONFIG_PERF_REGS)
98endif
99
100# So far there's only x86 and arm libdw unwind support merged in perf.
101# Disable it on all other architectures in case libdw unwind
102# support is detected in system. Add supported architectures
103# to the check.
104ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky riscv))
105  NO_LIBDW_DWARF_UNWIND := 1
106endif
107
108ifeq ($(LIBUNWIND_LIBS),)
109  NO_LIBUNWIND := 1
110endif
111#
112# For linking with debug library, run like:
113#
114#   make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
115#
116
117libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
118define libunwind_arch_set_flags_code
119  FEATURE_CHECK_CFLAGS-libunwind-$(1)  = -I$(LIBUNWIND_DIR)/include
120  FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
121endef
122
123ifdef LIBUNWIND_DIR
124  LIBUNWIND_CFLAGS  = -I$(LIBUNWIND_DIR)/include
125  LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
126  LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64
127  $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
128endif
129
130# Set per-feature check compilation flags
131FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
132FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
133FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
134FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
135
136FEATURE_CHECK_LDFLAGS-libunwind-arm = -lunwind -lunwind-arm
137FEATURE_CHECK_LDFLAGS-libunwind-aarch64 = -lunwind -lunwind-aarch64
138FEATURE_CHECK_LDFLAGS-libunwind-x86 = -lunwind -llzma -lunwind-x86
139FEATURE_CHECK_LDFLAGS-libunwind-x86_64 = -lunwind -llzma -lunwind-x86_64
140
141FEATURE_CHECK_LDFLAGS-libcrypto = -lcrypto
142
143ifdef CSINCLUDES
144  LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
145endif
146OPENCSDLIBS := -lopencsd_c_api -lopencsd
147ifdef CSLIBS
148  LIBOPENCSD_LDFLAGS := -L$(CSLIBS)
149endif
150FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
151FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
152
153ifeq ($(NO_PERF_REGS),0)
154  CFLAGS += -DHAVE_PERF_REGS_SUPPORT
155endif
156
157# for linking with debug library, run like:
158# make DEBUG=1 LIBDW_DIR=/opt/libdw/
159ifdef LIBDW_DIR
160  LIBDW_CFLAGS  := -I$(LIBDW_DIR)/include
161  LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
162endif
163DWARFLIBS := -ldw
164ifeq ($(findstring -static,${LDFLAGS}),-static)
165  DWARFLIBS += -lelf -lebl -ldl -lz -llzma -lbz2
166endif
167FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
168FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
169
170# for linking with debug library, run like:
171# make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
172ifdef LIBBABELTRACE_DIR
173  LIBBABELTRACE_CFLAGS  := -I$(LIBBABELTRACE_DIR)/include
174  LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
175endif
176FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
177FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
178
179ifdef LIBZSTD_DIR
180  LIBZSTD_CFLAGS  := -I$(LIBZSTD_DIR)/lib
181  LIBZSTD_LDFLAGS := -L$(LIBZSTD_DIR)/lib
182endif
183FEATURE_CHECK_CFLAGS-libzstd := $(LIBZSTD_CFLAGS)
184FEATURE_CHECK_LDFLAGS-libzstd := $(LIBZSTD_LDFLAGS)
185
186FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
187# include ARCH specific config
188-include $(src-perf)/arch/$(SRCARCH)/Makefile
189
190ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
191  CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
192endif
193
194include $(srctree)/tools/scripts/utilities.mak
195
196ifeq ($(call get-executable,$(FLEX)),)
197  dummy := $(error Error: $(FLEX) is missing on this system, please install it)
198endif
199
200ifeq ($(call get-executable,$(BISON)),)
201  dummy := $(error Error: $(BISON) is missing on this system, please install it)
202endif
203
204ifneq ($(OUTPUT),)
205  ifeq ($(shell expr $(shell $(BISON) --version | grep bison | sed -e 's/.\+ \([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/\1\2\3/g') \>\= 371), 1)
206    BISON_FILE_PREFIX_MAP := --file-prefix-map=$(OUTPUT)=
207  endif
208endif
209
210# Treat warnings as errors unless directed not to
211ifneq ($(WERROR),0)
212  CORE_CFLAGS += -Werror
213  CXXFLAGS += -Werror
214endif
215
216ifndef DEBUG
217  DEBUG := 0
218endif
219
220ifeq ($(DEBUG),0)
221ifeq ($(CC_NO_CLANG), 0)
222  CORE_CFLAGS += -O3
223else
224  CORE_CFLAGS += -O6
225endif
226endif
227
228ifdef PARSER_DEBUG
229  PARSER_DEBUG_BISON := -t
230  PARSER_DEBUG_FLEX  := -d
231  CFLAGS             += -DPARSER_DEBUG
232  $(call detected_var,PARSER_DEBUG_BISON)
233  $(call detected_var,PARSER_DEBUG_FLEX)
234endif
235
236# Try different combinations to accommodate systems that only have
237# python[2][-config] in weird combinations but always preferring
238# python2 and python2-config as per pep-0394. If python2 or python
239# aren't found, then python3 is used.
240PYTHON_AUTO := python
241PYTHON_AUTO := $(if $(call get-executable,python3),python3,$(PYTHON_AUTO))
242PYTHON_AUTO := $(if $(call get-executable,python),python,$(PYTHON_AUTO))
243PYTHON_AUTO := $(if $(call get-executable,python2),python2,$(PYTHON_AUTO))
244override PYTHON := $(call get-executable-or-default,PYTHON,$(PYTHON_AUTO))
245PYTHON_AUTO_CONFIG := \
246  $(if $(call get-executable,$(PYTHON)-config),$(PYTHON)-config,python-config)
247override PYTHON_CONFIG := \
248  $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON_AUTO_CONFIG))
249
250grep-libs  = $(filter -l%,$(1))
251strip-libs  = $(filter-out -l%,$(1))
252
253PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
254
255# Python 3.8 changed the output of `python-config --ldflags` to not include the
256# '-lpythonX.Y' flag unless '--embed' is also passed. The feature check for
257# libpython fails if that flag is not included in LDFLAGS
258ifeq ($(shell $(PYTHON_CONFIG_SQ) --ldflags --embed 2>&1 1>/dev/null; echo $$?), 0)
259  PYTHON_CONFIG_LDFLAGS := --ldflags --embed
260else
261  PYTHON_CONFIG_LDFLAGS := --ldflags
262endif
263
264ifdef PYTHON_CONFIG
265  PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) $(PYTHON_CONFIG_LDFLAGS) 2>/dev/null)
266  PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
267  PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
268  PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null)
269  FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
270endif
271
272FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
273FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
274FEATURE_CHECK_CFLAGS-libpython-version := $(PYTHON_EMBED_CCOPTS)
275FEATURE_CHECK_LDFLAGS-libpython-version := $(PYTHON_EMBED_LDOPTS)
276
277FEATURE_CHECK_LDFLAGS-libaio = -lrt
278
279FEATURE_CHECK_LDFLAGS-disassembler-four-args = -lbfd -lopcodes -ldl
280
281CORE_CFLAGS += -fno-omit-frame-pointer
282CORE_CFLAGS += -ggdb3
283CORE_CFLAGS += -funwind-tables
284CORE_CFLAGS += -Wall
285CORE_CFLAGS += -Wextra
286CORE_CFLAGS += -std=gnu99
287
288CXXFLAGS += -std=gnu++11 -fno-exceptions -fno-rtti
289CXXFLAGS += -Wall
290CXXFLAGS += -fno-omit-frame-pointer
291CXXFLAGS += -ggdb3
292CXXFLAGS += -funwind-tables
293CXXFLAGS += -Wno-strict-aliasing
294
295# Enforce a non-executable stack, as we may regress (again) in the future by
296# adding assembler files missing the .GNU-stack linker note.
297LDFLAGS += -Wl,-z,noexecstack
298
299EXTLIBS = -lpthread -lrt -lm -ldl
300
301ifneq ($(TCMALLOC),)
302  CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free
303  EXTLIBS += -ltcmalloc
304endif
305
306ifeq ($(FEATURES_DUMP),)
307# We will display at the end of this Makefile.config, using $(call feature_display_entries)
308# As we may retry some feature detection here, see the disassembler-four-args case, for instance
309  FEATURE_DISPLAY_DEFERRED := 1
310include $(srctree)/tools/build/Makefile.feature
311else
312include $(FEATURES_DUMP)
313endif
314
315ifeq ($(feature-stackprotector-all), 1)
316  CORE_CFLAGS += -fstack-protector-all
317endif
318
319ifeq ($(DEBUG),0)
320  ifeq ($(feature-fortify-source), 1)
321    CORE_CFLAGS += -D_FORTIFY_SOURCE=2
322  endif
323endif
324
325INC_FLAGS += -I$(srctree)/tools/lib/perf/include
326INC_FLAGS += -I$(src-perf)/util/include
327INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
328INC_FLAGS += -I$(srctree)/tools/include/
329INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
330INC_FLAGS += -I$(srctree)/tools/include/uapi
331INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
332INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
333
334# $(obj-perf)      for generated common-cmds.h
335# $(obj-perf)/util for generated bison/flex headers
336ifneq ($(OUTPUT),)
337INC_FLAGS += -I$(obj-perf)/util
338INC_FLAGS += -I$(obj-perf)
339endif
340
341INC_FLAGS += -I$(src-perf)/util
342INC_FLAGS += -I$(src-perf)
343INC_FLAGS += -I$(srctree)/tools/lib/
344
345CORE_CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
346
347CFLAGS   += $(CORE_CFLAGS) $(INC_FLAGS)
348CXXFLAGS += $(INC_FLAGS)
349
350LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS)
351
352ifeq ($(feature-sync-compare-and-swap), 1)
353  CFLAGS += -DHAVE_SYNC_COMPARE_AND_SWAP_SUPPORT
354endif
355
356ifeq ($(feature-pthread-attr-setaffinity-np), 1)
357  CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
358endif
359
360ifeq ($(feature-pthread-barrier), 1)
361  CFLAGS += -DHAVE_PTHREAD_BARRIER
362endif
363
364ifndef NO_BIONIC
365  $(call feature_check,bionic)
366  ifeq ($(feature-bionic), 1)
367    BIONIC := 1
368    CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE
369    CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE
370    EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
371    EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
372  endif
373endif
374
375ifeq ($(feature-eventfd), 1)
376  CFLAGS += -DHAVE_EVENTFD_SUPPORT
377endif
378
379ifeq ($(feature-get_current_dir_name), 1)
380  CFLAGS += -DHAVE_GET_CURRENT_DIR_NAME
381endif
382
383ifeq ($(feature-gettid), 1)
384  CFLAGS += -DHAVE_GETTID
385endif
386
387ifeq ($(feature-file-handle), 1)
388  CFLAGS += -DHAVE_FILE_HANDLE
389endif
390
391ifdef NO_LIBELF
392  NO_DWARF := 1
393  NO_DEMANGLE := 1
394  NO_LIBUNWIND := 1
395  NO_LIBDW_DWARF_UNWIND := 1
396  NO_LIBBPF := 1
397  NO_JVMTI := 1
398else
399  ifeq ($(feature-libelf), 0)
400    ifeq ($(feature-glibc), 1)
401      LIBC_SUPPORT := 1
402    endif
403    ifeq ($(BIONIC),1)
404      LIBC_SUPPORT := 1
405    endif
406    ifeq ($(LIBC_SUPPORT),1)
407      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);
408
409      NO_LIBELF := 1
410      NO_DWARF := 1
411      NO_DEMANGLE := 1
412      NO_LIBUNWIND := 1
413      NO_LIBDW_DWARF_UNWIND := 1
414      NO_LIBBPF := 1
415      NO_JVMTI := 1
416    else
417      ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
418        ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
419          msg := $(error No libasan found, please install libasan);
420        endif
421      endif
422
423      ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
424        ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
425          msg := $(error No libubsan found, please install libubsan);
426        endif
427      endif
428
429      ifneq ($(filter s% -static%,$(LDFLAGS),),)
430        msg := $(error No static glibc found, please install glibc-static);
431      else
432        msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
433      endif
434    endif
435  else
436    ifndef NO_LIBDW_DWARF_UNWIND
437      ifneq ($(feature-libdw-dwarf-unwind),1)
438        NO_LIBDW_DWARF_UNWIND := 1
439        msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
440      endif
441    endif
442    ifneq ($(feature-dwarf), 1)
443      ifndef NO_DWARF
444        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);
445        NO_DWARF := 1
446      endif
447    else
448      ifneq ($(feature-dwarf_getlocations), 1)
449        msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
450      else
451        CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
452      endif # dwarf_getlocations
453    endif # Dwarf support
454  endif # libelf support
455endif # NO_LIBELF
456
457ifeq ($(feature-glibc), 1)
458  CFLAGS += -DHAVE_GLIBC_SUPPORT
459endif
460
461ifeq ($(feature-libaio), 1)
462  ifndef NO_AIO
463    CFLAGS += -DHAVE_AIO_SUPPORT
464  endif
465endif
466
467ifdef NO_DWARF
468  NO_LIBDW_DWARF_UNWIND := 1
469endif
470
471ifeq ($(feature-sched_getcpu), 1)
472  CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
473endif
474
475ifeq ($(feature-setns), 1)
476  CFLAGS += -DHAVE_SETNS_SUPPORT
477  $(call detected,CONFIG_SETNS)
478endif
479
480ifdef CORESIGHT
481  $(call feature_check,libopencsd)
482  ifeq ($(feature-libopencsd), 1)
483    CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
484    ifeq ($(feature-reallocarray), 0)
485      CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
486    endif
487    LDFLAGS += $(LIBOPENCSD_LDFLAGS)
488    EXTLIBS += $(OPENCSDLIBS)
489    $(call detected,CONFIG_LIBOPENCSD)
490    ifdef CSTRACE_RAW
491      CFLAGS += -DCS_DEBUG_RAW
492      ifeq (${CSTRACE_RAW}, packed)
493        CFLAGS += -DCS_RAW_PACKED
494      endif
495    endif
496  endif
497endif
498
499ifndef NO_LIBELF
500  CFLAGS += -DHAVE_LIBELF_SUPPORT
501  EXTLIBS += -lelf
502  $(call detected,CONFIG_LIBELF)
503
504  ifeq ($(feature-libelf-getphdrnum), 1)
505    CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
506  endif
507
508  ifeq ($(feature-libelf-gelf_getnote), 1)
509    CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
510  else
511    msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
512  endif
513
514  ifeq ($(feature-libelf-getshdrstrndx), 1)
515    CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
516  endif
517
518  ifndef NO_LIBDEBUGINFOD
519    $(call feature_check,libdebuginfod)
520    ifeq ($(feature-libdebuginfod), 1)
521      CFLAGS += -DHAVE_DEBUGINFOD_SUPPORT
522      EXTLIBS += -ldebuginfod
523    endif
524  endif
525
526  ifndef NO_DWARF
527    ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
528      msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
529      NO_DWARF := 1
530    else
531      CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
532      LDFLAGS += $(LIBDW_LDFLAGS)
533      EXTLIBS += ${DWARFLIBS}
534      $(call detected,CONFIG_DWARF)
535    endif # PERF_HAVE_DWARF_REGS
536  endif # NO_DWARF
537
538  ifndef NO_LIBBPF
539    ifeq ($(feature-bpf), 1)
540      CFLAGS += -DHAVE_LIBBPF_SUPPORT
541      $(call detected,CONFIG_LIBBPF)
542
543      # detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
544      $(call feature_check,libbpf)
545      ifdef LIBBPF_DYNAMIC
546        ifeq ($(feature-libbpf), 1)
547          EXTLIBS += -lbpf
548          $(call detected,CONFIG_LIBBPF_DYNAMIC)
549        else
550          dummy := $(error Error: No libbpf devel library found, please install libbpf-devel);
551        endif
552      endif
553    endif
554
555    ifndef NO_DWARF
556      ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
557        CFLAGS += -DHAVE_BPF_PROLOGUE
558        $(call detected,CONFIG_BPF_PROLOGUE)
559      else
560        msg := $(warning BPF prologue is not supported by architecture $(SRCARCH), missing regs_query_register_offset());
561      endif
562    else
563      msg := $(warning DWARF support is off, BPF prologue is disabled);
564    endif
565
566  endif # NO_LIBBPF
567endif # NO_LIBELF
568
569ifndef NO_SDT
570  ifneq ($(feature-sdt), 1)
571    msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
572    NO_SDT := 1;
573  else
574    CFLAGS += -DHAVE_SDT_EVENT
575    $(call detected,CONFIG_SDT_EVENT)
576  endif
577endif
578
579ifdef PERF_HAVE_JITDUMP
580  ifndef NO_LIBELF
581    $(call detected,CONFIG_JITDUMP)
582    CFLAGS += -DHAVE_JITDUMP
583  endif
584endif
585
586ifeq ($(SRCARCH),powerpc)
587  ifndef NO_DWARF
588    CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
589  endif
590endif
591
592ifndef NO_LIBUNWIND
593  have_libunwind :=
594
595  $(call feature_check,libunwind-x86)
596  ifeq ($(feature-libunwind-x86), 1)
597    $(call detected,CONFIG_LIBUNWIND_X86)
598    CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
599    LDFLAGS += -lunwind-x86
600    EXTLIBS_LIBUNWIND += -lunwind-x86
601    have_libunwind = 1
602  endif
603
604  $(call feature_check,libunwind-aarch64)
605  ifeq ($(feature-libunwind-aarch64), 1)
606    $(call detected,CONFIG_LIBUNWIND_AARCH64)
607    CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
608    LDFLAGS += -lunwind-aarch64
609    EXTLIBS_LIBUNWIND += -lunwind-aarch64
610    have_libunwind = 1
611    $(call feature_check,libunwind-debug-frame-aarch64)
612    ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
613      msg := $(warning No debug_frame support found in libunwind-aarch64);
614      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
615    endif
616  endif
617
618  ifneq ($(feature-libunwind), 1)
619    msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
620    NO_LOCAL_LIBUNWIND := 1
621  else
622    have_libunwind := 1
623    $(call detected,CONFIG_LOCAL_LIBUNWIND)
624  endif
625
626  ifneq ($(have_libunwind), 1)
627    NO_LIBUNWIND := 1
628  endif
629else
630  NO_LOCAL_LIBUNWIND := 1
631endif
632
633ifndef NO_LIBBPF
634  ifneq ($(feature-bpf), 1)
635    msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
636    NO_LIBBPF := 1
637  endif
638endif
639
640ifdef BUILD_BPF_SKEL
641  $(call feature_check,clang-bpf-co-re)
642  ifeq ($(feature-clang-bpf-co-re), 0)
643    dummy := $(error Error: clang too old/not installed. Please install recent clang to build with BUILD_BPF_SKEL)
644  endif
645  $(call detected,CONFIG_PERF_BPF_SKEL)
646  CFLAGS += -DHAVE_BPF_SKEL
647endif
648
649dwarf-post-unwind := 1
650dwarf-post-unwind-text := BUG
651
652# setup DWARF post unwinder
653ifdef NO_LIBUNWIND
654  ifdef NO_LIBDW_DWARF_UNWIND
655    msg := $(warning Disabling post unwind, no support found.);
656    dwarf-post-unwind := 0
657  else
658    dwarf-post-unwind-text := libdw
659    $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
660  endif
661else
662  dwarf-post-unwind-text := libunwind
663  $(call detected,CONFIG_LIBUNWIND)
664  # Enable libunwind support by default.
665  ifndef NO_LIBDW_DWARF_UNWIND
666    NO_LIBDW_DWARF_UNWIND := 1
667  endif
668endif
669
670ifeq ($(dwarf-post-unwind),1)
671  CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
672  $(call detected,CONFIG_DWARF_UNWIND)
673else
674  NO_DWARF_UNWIND := 1
675endif
676
677ifndef NO_LOCAL_LIBUNWIND
678  ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
679    $(call feature_check,libunwind-debug-frame)
680    ifneq ($(feature-libunwind-debug-frame), 1)
681      msg := $(warning No debug_frame support found in libunwind);
682      CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
683    endif
684  else
685    # non-ARM has no dwarf_find_debug_frame() function:
686    CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
687  endif
688  EXTLIBS += $(LIBUNWIND_LIBS)
689  LDFLAGS += $(LIBUNWIND_LIBS)
690endif
691ifeq ($(findstring -static,${LDFLAGS}),-static)
692  # gcc -static links libgcc_eh which contans piece of libunwind
693  LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
694endif
695
696ifndef NO_LIBUNWIND
697  CFLAGS  += -DHAVE_LIBUNWIND_SUPPORT
698  CFLAGS  += $(LIBUNWIND_CFLAGS)
699  LDFLAGS += $(LIBUNWIND_LDFLAGS)
700  EXTLIBS += $(EXTLIBS_LIBUNWIND)
701endif
702
703ifeq ($(NO_SYSCALL_TABLE),0)
704  $(call detected,CONFIG_TRACE)
705else
706  ifndef NO_LIBAUDIT
707    $(call feature_check,libaudit)
708    ifneq ($(feature-libaudit), 1)
709      msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
710      NO_LIBAUDIT := 1
711    else
712      CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
713      EXTLIBS += -laudit
714      $(call detected,CONFIG_TRACE)
715    endif
716  endif
717endif
718
719ifndef NO_LIBCRYPTO
720  ifneq ($(feature-libcrypto), 1)
721    msg := $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev);
722    NO_LIBCRYPTO := 1
723  else
724    CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
725    EXTLIBS += -lcrypto
726    $(call detected,CONFIG_CRYPTO)
727  endif
728endif
729
730ifdef NO_NEWT
731  NO_SLANG=1
732endif
733
734ifndef NO_SLANG
735  ifneq ($(feature-libslang), 1)
736    ifneq ($(feature-libslang-include-subdir), 1)
737      msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
738      NO_SLANG := 1
739    else
740      CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
741    endif
742  endif
743  ifndef NO_SLANG
744    # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
745    CFLAGS += -DHAVE_SLANG_SUPPORT
746    EXTLIBS += -lslang
747    $(call detected,CONFIG_SLANG)
748  endif
749endif
750
751ifdef GTK2
752  FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
753  $(call feature_check,gtk2)
754  ifneq ($(feature-gtk2), 1)
755    msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
756    NO_GTK2 := 1
757  else
758    $(call feature_check,gtk2-infobar)
759    ifeq ($(feature-gtk2-infobar), 1)
760      GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
761    endif
762    CFLAGS += -DHAVE_GTK2_SUPPORT
763    GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
764    GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
765    EXTLIBS += -ldl
766  endif
767endif
768
769ifdef NO_LIBPERL
770  CFLAGS += -DNO_LIBPERL
771else
772  PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
773  PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
774  PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
775  PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
776  PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
777  PERL_EMBED_CCOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
778  PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
779  FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
780
781  ifneq ($(feature-libperl), 1)
782    CFLAGS += -DNO_LIBPERL
783    NO_LIBPERL := 1
784    msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
785  else
786    LDFLAGS += $(PERL_EMBED_LDFLAGS)
787    EXTLIBS += $(PERL_EMBED_LIBADD)
788    CFLAGS += -DHAVE_LIBPERL_SUPPORT
789    $(call detected,CONFIG_LIBPERL)
790  endif
791endif
792
793ifeq ($(feature-timerfd), 1)
794  CFLAGS += -DHAVE_TIMERFD_SUPPORT
795else
796  msg := $(warning No timerfd support. Disables 'perf kvm stat live');
797endif
798
799disable-python = $(eval $(disable-python_code))
800define disable-python_code
801  CFLAGS += -DNO_LIBPYTHON
802  $(warning $1)
803  NO_LIBPYTHON := 1
804endef
805
806ifdef NO_LIBPYTHON
807  $(call disable-python,Python support disabled by user)
808else
809
810  ifndef PYTHON
811    $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
812  else
813    PYTHON_WORD := $(call shell-wordify,$(PYTHON))
814
815    ifndef PYTHON_CONFIG
816      $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
817    else
818
819      ifneq ($(feature-libpython), 1)
820        $(call disable-python,No 'Python.h' (for Python 2.x support) was found: disables Python support - please install python-devel/python-dev)
821      else
822         LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
823         EXTLIBS += $(PYTHON_EMBED_LIBADD)
824         LANG_BINDINGS += $(obj-perf)python/perf.so
825         CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
826         $(call detected,CONFIG_LIBPYTHON)
827      endif
828    endif
829  endif
830endif
831
832ifeq ($(feature-libbfd), 1)
833  EXTLIBS += -lbfd -lopcodes
834else
835  # we are on a system that requires -liberty and (maybe) -lz
836  # to link against -lbfd; test each case individually here
837
838  # call all detections now so we get correct
839  # status in VF output
840  $(call feature_check,libbfd-liberty)
841  $(call feature_check,libbfd-liberty-z)
842
843  ifeq ($(feature-libbfd-liberty), 1)
844    EXTLIBS += -lbfd -lopcodes -liberty
845    FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl
846  else
847    ifeq ($(feature-libbfd-liberty-z), 1)
848      EXTLIBS += -lbfd -lopcodes -liberty -lz
849      FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl
850    endif
851  endif
852  $(call feature_check,disassembler-four-args)
853endif
854
855ifeq ($(feature-libbfd-buildid), 1)
856  CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
857else
858  msg := $(warning Old version of libbfd/binutils things like PE executable profiling will not be available);
859endif
860
861ifdef NO_DEMANGLE
862  CFLAGS += -DNO_DEMANGLE
863else
864  ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
865    EXTLIBS += -liberty
866  else
867    ifeq ($(filter -liberty,$(EXTLIBS)),)
868      $(call feature_check,cplus-demangle)
869
870      # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
871      # or any of 'bfd iberty z' trinity
872      ifeq ($(feature-cplus-demangle), 1)
873        EXTLIBS += -liberty
874      else
875        msg := $(warning No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling)
876        CFLAGS += -DNO_DEMANGLE
877      endif
878    endif
879  endif
880
881  ifneq ($(filter -liberty,$(EXTLIBS)),)
882    CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
883  endif
884endif
885
886ifneq ($(filter -lbfd,$(EXTLIBS)),)
887  CFLAGS += -DHAVE_LIBBFD_SUPPORT
888endif
889
890ifndef NO_ZLIB
891  ifeq ($(feature-zlib), 1)
892    CFLAGS += -DHAVE_ZLIB_SUPPORT
893    EXTLIBS += -lz
894    $(call detected,CONFIG_ZLIB)
895  else
896    NO_ZLIB := 1
897  endif
898endif
899
900ifndef NO_LZMA
901  ifeq ($(feature-lzma), 1)
902    CFLAGS += -DHAVE_LZMA_SUPPORT
903    EXTLIBS += -llzma
904    $(call detected,CONFIG_LZMA)
905  else
906    msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
907    NO_LZMA := 1
908  endif
909endif
910
911ifndef NO_LIBZSTD
912  ifeq ($(feature-libzstd), 1)
913    CFLAGS += -DHAVE_ZSTD_SUPPORT
914    CFLAGS += $(LIBZSTD_CFLAGS)
915    LDFLAGS += $(LIBZSTD_LDFLAGS)
916    EXTLIBS += -lzstd
917    $(call detected,CONFIG_ZSTD)
918  else
919    msg := $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR);
920    NO_LIBZSTD := 1
921  endif
922endif
923
924ifndef NO_LIBCAP
925  ifeq ($(feature-libcap), 1)
926    CFLAGS += -DHAVE_LIBCAP_SUPPORT
927    EXTLIBS += -lcap
928    $(call detected,CONFIG_LIBCAP)
929  else
930    msg := $(warning No libcap found, disables capability support, please install libcap-devel/libcap-dev);
931    NO_LIBCAP := 1
932  endif
933endif
934
935ifndef NO_BACKTRACE
936  ifeq ($(feature-backtrace), 1)
937    CFLAGS += -DHAVE_BACKTRACE_SUPPORT
938  endif
939endif
940
941ifndef NO_LIBNUMA
942  ifeq ($(feature-libnuma), 0)
943    msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
944    NO_LIBNUMA := 1
945  else
946    ifeq ($(feature-numa_num_possible_cpus), 0)
947      msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
948      NO_LIBNUMA := 1
949    else
950      CFLAGS += -DHAVE_LIBNUMA_SUPPORT
951      EXTLIBS += -lnuma
952      $(call detected,CONFIG_NUMA)
953    endif
954  endif
955endif
956
957ifdef HAVE_KVM_STAT_SUPPORT
958    CFLAGS += -DHAVE_KVM_STAT_SUPPORT
959endif
960
961ifeq ($(feature-disassembler-four-args), 1)
962    CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
963endif
964
965ifeq (${IS_64_BIT}, 1)
966  ifndef NO_PERF_READ_VDSO32
967    $(call feature_check,compile-32)
968    ifeq ($(feature-compile-32), 1)
969      CFLAGS += -DHAVE_PERF_READ_VDSO32
970    else
971      NO_PERF_READ_VDSO32 := 1
972    endif
973  endif
974  ifneq ($(SRCARCH), x86)
975    NO_PERF_READ_VDSOX32 := 1
976  endif
977  ifndef NO_PERF_READ_VDSOX32
978    $(call feature_check,compile-x32)
979    ifeq ($(feature-compile-x32), 1)
980      CFLAGS += -DHAVE_PERF_READ_VDSOX32
981    else
982      NO_PERF_READ_VDSOX32 := 1
983    endif
984  endif
985else
986  NO_PERF_READ_VDSO32 := 1
987  NO_PERF_READ_VDSOX32 := 1
988endif
989
990ifndef NO_LIBBABELTRACE
991  $(call feature_check,libbabeltrace)
992  ifeq ($(feature-libbabeltrace), 1)
993    CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
994    LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
995    EXTLIBS += -lbabeltrace-ctf
996    $(call detected,CONFIG_LIBBABELTRACE)
997  else
998    msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
999  endif
1000endif
1001
1002ifndef NO_AUXTRACE
1003  ifeq ($(SRCARCH),x86)
1004    ifeq ($(feature-get_cpuid), 0)
1005      msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
1006      NO_AUXTRACE := 1
1007    endif
1008  endif
1009  ifndef NO_AUXTRACE
1010    $(call detected,CONFIG_AUXTRACE)
1011    CFLAGS += -DHAVE_AUXTRACE_SUPPORT
1012  endif
1013endif
1014
1015ifndef NO_JVMTI
1016  ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
1017    JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
1018  else
1019    ifneq (,$(wildcard /usr/sbin/alternatives))
1020      JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
1021    endif
1022  endif
1023  ifndef JDIR
1024    $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
1025    NO_JVMTI := 1
1026  endif
1027endif
1028
1029ifndef NO_JVMTI
1030  FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
1031  $(call feature_check,jvmti)
1032  ifeq ($(feature-jvmti), 1)
1033    $(call detected_var,JDIR)
1034    ifndef NO_JVMTI_CMLR
1035      FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
1036      $(call feature_check,jvmti-cmlr)
1037      ifeq ($(feature-jvmti-cmlr), 1)
1038        CFLAGS += -DHAVE_JVMTI_CMLR
1039      endif
1040    endif # NO_JVMTI_CMLR
1041  else
1042    $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
1043    NO_JVMTI := 1
1044  endif
1045endif
1046
1047USE_CXX = 0
1048USE_CLANGLLVM = 0
1049ifdef LIBCLANGLLVM
1050  $(call feature_check,cxx)
1051  ifneq ($(feature-cxx), 1)
1052    msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
1053  else
1054    $(call feature_check,llvm)
1055    $(call feature_check,llvm-version)
1056    ifneq ($(feature-llvm), 1)
1057      msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
1058    else
1059      $(call feature_check,clang)
1060      ifneq ($(feature-clang), 1)
1061        msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
1062      else
1063        CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
1064        CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
1065        $(call detected,CONFIG_CXX)
1066        $(call detected,CONFIG_CLANGLLVM)
1067	USE_CXX = 1
1068	USE_LLVM = 1
1069	USE_CLANG = 1
1070        ifneq ($(feature-llvm-version),1)
1071          msg := $(warning This version of LLVM is not tested. May cause build errors)
1072        endif
1073      endif
1074    endif
1075  endif
1076endif
1077
1078ifdef LIBPFM4
1079  $(call feature_check,libpfm4)
1080  ifeq ($(feature-libpfm4), 1)
1081    CFLAGS += -DHAVE_LIBPFM
1082    EXTLIBS += -lpfm
1083    ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
1084    $(call detected,CONFIG_LIBPFM4)
1085  else
1086    msg := $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev);
1087    NO_LIBPFM4 := 1
1088  endif
1089endif
1090
1091ifdef LIBTRACEEVENT_DYNAMIC
1092  $(call feature_check,libtraceevent)
1093  ifeq ($(feature-libtraceevent), 1)
1094    EXTLIBS += -ltraceevent
1095  else
1096    dummy := $(error Error: No libtraceevent devel library found, please install libtraceevent-devel);
1097  endif
1098endif
1099
1100# Among the variables below, these:
1101#   perfexecdir
1102#   perf_include_dir
1103#   perf_examples_dir
1104#   template_dir
1105#   mandir
1106#   infodir
1107#   htmldir
1108#   ETC_PERFCONFIG (but not sysconfdir)
1109# can be specified as a relative path some/where/else;
1110# this is interpreted as relative to $(prefix) and "perf" at
1111# runtime figures out where they are based on the path to the executable.
1112# This can help installing the suite in a relocatable way.
1113
1114# Make the path relative to DESTDIR, not to prefix
1115ifndef DESTDIR
1116prefix ?= $(HOME)
1117endif
1118bindir_relative = bin
1119bindir = $(abspath $(prefix)/$(bindir_relative))
1120includedir_relative = include
1121includedir = $(abspath $(prefix)/$(includedir_relative))
1122mandir = share/man
1123infodir = share/info
1124perfexecdir = libexec/perf-core
1125perf_include_dir = lib/perf/include
1126perf_examples_dir = lib/perf/examples
1127sharedir = $(prefix)/share
1128template_dir = share/perf-core/templates
1129STRACE_GROUPS_DIR = share/perf-core/strace/groups
1130htmldir = share/doc/perf-doc
1131tipdir = share/doc/perf-tip
1132srcdir = $(srctree)/tools/perf
1133ifeq ($(prefix),/usr)
1134sysconfdir = /etc
1135ETC_PERFCONFIG = $(sysconfdir)/perfconfig
1136else
1137sysconfdir = $(prefix)/etc
1138ETC_PERFCONFIG = etc/perfconfig
1139endif
1140ifndef lib
1141ifeq ($(SRCARCH)$(IS_64_BIT), x861)
1142lib = lib64
1143else
1144lib = lib
1145endif
1146endif # lib
1147libdir = $(prefix)/$(lib)
1148
1149# Shell quote (do not use $(call) to accommodate ancient setups);
1150ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
1151STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
1152DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
1153bindir_SQ = $(subst ','\'',$(bindir))
1154includedir_SQ = $(subst ','\'',$(includedir))
1155mandir_SQ = $(subst ','\'',$(mandir))
1156infodir_SQ = $(subst ','\'',$(infodir))
1157perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
1158perf_include_dir_SQ = $(subst ','\'',$(perf_include_dir))
1159perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
1160template_dir_SQ = $(subst ','\'',$(template_dir))
1161htmldir_SQ = $(subst ','\'',$(htmldir))
1162tipdir_SQ = $(subst ','\'',$(tipdir))
1163prefix_SQ = $(subst ','\'',$(prefix))
1164sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
1165libdir_SQ = $(subst ','\'',$(libdir))
1166srcdir_SQ = $(subst ','\'',$(srcdir))
1167
1168ifneq ($(filter /%,$(firstword $(perfexecdir))),)
1169perfexec_instdir = $(perfexecdir)
1170perf_include_instdir = $(perf_include_dir)
1171perf_examples_instdir = $(perf_examples_dir)
1172STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
1173tip_instdir = $(tipdir)
1174else
1175perfexec_instdir = $(prefix)/$(perfexecdir)
1176perf_include_instdir = $(prefix)/$(perf_include_dir)
1177perf_examples_instdir = $(prefix)/$(perf_examples_dir)
1178STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
1179tip_instdir = $(prefix)/$(tipdir)
1180endif
1181perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
1182perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
1183perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
1184STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
1185tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
1186
1187# If we install to $(HOME) we keep the traceevent default:
1188# $(HOME)/.traceevent/plugins
1189# Otherwise we install plugins into the global $(libdir).
1190ifdef DESTDIR
1191plugindir=$(libdir)/traceevent/plugins
1192plugindir_SQ= $(subst ','\'',$(plugindir))
1193endif
1194
1195print_var = $(eval $(print_var_code)) $(info $(MSG))
1196define print_var_code
1197    MSG = $(shell printf '...%30s: %s' $(1) $($(1)))
1198endef
1199
1200ifeq ($(VF),1)
1201  # Display EXTRA features which are detected manualy
1202  # from here with feature_check call and thus cannot
1203  # be partof global state output.
1204  $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),))
1205  $(call print_var,prefix)
1206  $(call print_var,bindir)
1207  $(call print_var,libdir)
1208  $(call print_var,sysconfdir)
1209  $(call print_var,LIBUNWIND_DIR)
1210  $(call print_var,LIBDW_DIR)
1211  $(call print_var,JDIR)
1212
1213  ifeq ($(dwarf-post-unwind),1)
1214    $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
1215  endif
1216  $(info )
1217endif
1218
1219$(call detected_var,bindir_SQ)
1220$(call detected_var,PYTHON_WORD)
1221ifneq ($(OUTPUT),)
1222$(call detected_var,OUTPUT)
1223endif
1224$(call detected_var,htmldir_SQ)
1225$(call detected_var,infodir_SQ)
1226$(call detected_var,mandir_SQ)
1227$(call detected_var,ETC_PERFCONFIG_SQ)
1228$(call detected_var,STRACE_GROUPS_DIR_SQ)
1229$(call detected_var,prefix_SQ)
1230$(call detected_var,perfexecdir_SQ)
1231$(call detected_var,perf_include_dir_SQ)
1232$(call detected_var,perf_examples_dir_SQ)
1233$(call detected_var,tipdir_SQ)
1234$(call detected_var,srcdir_SQ)
1235$(call detected_var,LIBDIR)
1236$(call detected_var,GTK_CFLAGS)
1237$(call detected_var,PERL_EMBED_CCOPTS)
1238$(call detected_var,PYTHON_EMBED_CCOPTS)
1239ifneq ($(BISON_FILE_PREFIX_MAP),)
1240$(call detected_var,BISON_FILE_PREFIX_MAP)
1241endif
1242
1243# re-generate FEATURE-DUMP as we may have called feature_check, found out
1244# extra libraries to add to LDFLAGS of some other test and then redo those
1245# tests, see the block about libbfd, disassembler-four-args, for instance.
1246$(shell rm -f $(FEATURE_DUMP_FILENAME))
1247$(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))
1248
1249ifeq ($(feature_display),1)
1250  $(call feature_display_entries)
1251endif
1252