Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
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
31ifneq ($(NO_SYSCALL_TABLE),1)
32 NO_SYSCALL_TABLE := 1
33
34 ifeq ($(SRCARCH),x86)
35 ifeq (${IS_64_BIT}, 1)
36 NO_SYSCALL_TABLE := 0
37 endif
38 else
39 ifeq ($(SRCARCH),$(filter $(SRCARCH),powerpc arm64 s390 mips loongarch))
40 NO_SYSCALL_TABLE := 0
41 endif
42 endif
43
44 ifneq ($(NO_SYSCALL_TABLE),1)
45 CFLAGS += -DHAVE_SYSCALL_TABLE_SUPPORT
46 endif
47endif
48
49# Additional ARCH settings for ppc
50ifeq ($(SRCARCH),powerpc)
51 CFLAGS += -I$(OUTPUT)arch/powerpc/include/generated
52 LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
53endif
54
55# Additional ARCH settings for x86
56ifeq ($(SRCARCH),x86)
57 $(call detected,CONFIG_X86)
58 ifeq (${IS_64_BIT}, 1)
59 CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT -I$(OUTPUT)arch/x86/include/generated
60 ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
61 LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma
62 $(call detected,CONFIG_X86_64)
63 else
64 LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
65 endif
66endif
67
68ifeq ($(SRCARCH),arm)
69 LIBUNWIND_LIBS = -lunwind -lunwind-arm
70endif
71
72ifeq ($(SRCARCH),arm64)
73 CFLAGS += -I$(OUTPUT)arch/arm64/include/generated
74 LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
75endif
76
77ifeq ($(SRCARCH),loongarch)
78 CFLAGS += -I$(OUTPUT)arch/loongarch/include/generated
79 LIBUNWIND_LIBS = -lunwind -lunwind-loongarch64
80endif
81
82ifeq ($(ARCH),s390)
83 CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
84endif
85
86ifeq ($(ARCH),mips)
87 CFLAGS += -I$(OUTPUT)arch/mips/include/generated
88 LIBUNWIND_LIBS = -lunwind -lunwind-mips
89endif
90
91# So far there's only x86 and arm libdw unwind support merged in perf.
92# Disable it on all other architectures in case libdw unwind
93# support is detected in system. Add supported architectures
94# to the check.
95ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky riscv loongarch))
96 NO_LIBDW_DWARF_UNWIND := 1
97endif
98
99ifeq ($(LIBUNWIND_LIBS),)
100 NO_LIBUNWIND := 1
101endif
102#
103# For linking with debug library, run like:
104#
105# make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
106#
107
108libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
109define libunwind_arch_set_flags_code
110 FEATURE_CHECK_CFLAGS-libunwind-$(1) = -I$(LIBUNWIND_DIR)/include
111 FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
112endef
113
114ifdef LIBUNWIND_DIR
115 LIBUNWIND_CFLAGS = -I$(LIBUNWIND_DIR)/include
116 LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
117 LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64 loongarch
118 $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
119endif
120
121# Set per-feature check compilation flags
122FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
123FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
124FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
125FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
126
127FEATURE_CHECK_LDFLAGS-libunwind-arm += -lunwind -lunwind-arm
128FEATURE_CHECK_LDFLAGS-libunwind-aarch64 += -lunwind -lunwind-aarch64
129FEATURE_CHECK_LDFLAGS-libunwind-x86 += -lunwind -llzma -lunwind-x86
130FEATURE_CHECK_LDFLAGS-libunwind-x86_64 += -lunwind -llzma -lunwind-x86_64
131
132FEATURE_CHECK_LDFLAGS-libcrypto = -lcrypto
133
134ifdef CSINCLUDES
135 LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
136endif
137OPENCSDLIBS := -lopencsd_c_api -lopencsd
138ifeq ($(findstring -static,${LDFLAGS}),-static)
139 OPENCSDLIBS += -lstdc++
140endif
141ifdef CSLIBS
142 LIBOPENCSD_LDFLAGS := -L$(CSLIBS)
143endif
144FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
145FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
146
147# for linking with debug library, run like:
148# make DEBUG=1 LIBDW_DIR=/opt/libdw/
149ifdef LIBDW_DIR
150 LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
151 LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
152endif
153DWARFLIBS := -ldw
154ifeq ($(findstring -static,${LDFLAGS}),-static)
155 DWARFLIBS += -lelf -lebl -ldl -lz -llzma -lbz2
156endif
157FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
158FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
159
160# for linking with debug library, run like:
161# make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
162ifdef LIBBABELTRACE_DIR
163 LIBBABELTRACE_CFLAGS := -I$(LIBBABELTRACE_DIR)/include
164 LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
165endif
166FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
167FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
168
169# for linking with debug library, run like:
170# make DEBUG=1 LIBCAPSTONE_DIR=/opt/capstone/
171ifdef LIBCAPSTONE_DIR
172 LIBCAPSTONE_CFLAGS := -I$(LIBCAPSTONE_DIR)/include
173 LIBCAPSTONE_LDFLAGS := -L$(LIBCAPSTONE_DIR)/
174endif
175FEATURE_CHECK_CFLAGS-libcapstone := $(LIBCAPSTONE_CFLAGS)
176FEATURE_CHECK_LDFLAGS-libcapstone := $(LIBCAPSTONE_LDFLAGS) -lcapstone
177
178ifdef LIBZSTD_DIR
179 LIBZSTD_CFLAGS := -I$(LIBZSTD_DIR)/lib
180 LIBZSTD_LDFLAGS := -L$(LIBZSTD_DIR)/lib
181endif
182FEATURE_CHECK_CFLAGS-libzstd := $(LIBZSTD_CFLAGS)
183FEATURE_CHECK_LDFLAGS-libzstd := $(LIBZSTD_LDFLAGS)
184
185# for linking with debug library, run like:
186# make DEBUG=1 LIBTRACEEVENT_DIR=/opt/libtraceevent/
187TRACEEVENTLIBS := -ltraceevent
188ifdef LIBTRACEEVENT_DIR
189 LIBTRACEEVENT_CFLAGS := -I$(LIBTRACEEVENT_DIR)/include
190 LIBTRACEEVENT_LDFLAGS := -L$(LIBTRACEEVENT_DIR)/lib
191endif
192FEATURE_CHECK_CFLAGS-libtraceevent := $(LIBTRACEEVENT_CFLAGS)
193FEATURE_CHECK_LDFLAGS-libtraceevent := $(LIBTRACEEVENT_LDFLAGS) $(TRACEEVENTLIBS)
194
195FEATURE_CHECK_CFLAGS-bpf = -I. -I$(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 $(error Error: $(FLEX) is missing on this system, please install it)
207endif
208
209ifeq ($(call get-executable,$(BISON)),)
210 $(error Error: $(BISON) is missing on this system, please install it)
211endif
212
213ifneq ($(NO_LIBTRACEEVENT),1)
214 ifeq ($(call get-executable,$(PKG_CONFIG)),)
215 dummy := $(error Error: $(PKG_CONFIG) needed by libtraceevent is missing on this system, please install it)
216 endif
217endif
218
219ifneq ($(OUTPUT),)
220 ifeq ($(shell expr $(shell $(BISON) --version | grep bison | sed -e 's/.\+ \([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/\1\2\3/g') \>\= 371), 1)
221 BISON_FILE_PREFIX_MAP := --file-prefix-map=$(OUTPUT)=
222 endif
223endif
224
225# Treat warnings as errors unless directed not to
226ifneq ($(WERROR),0)
227 CORE_CFLAGS += -Werror
228 CXXFLAGS += -Werror
229 HOSTCFLAGS += -Werror
230endif
231
232ifndef DEBUG
233 DEBUG := 0
234endif
235
236ifeq ($(DEBUG),0)
237CORE_CFLAGS += -DNDEBUG=1
238ifeq ($(CC_NO_CLANG), 0)
239 CORE_CFLAGS += -O3
240else
241 CORE_CFLAGS += -O6
242endif
243else
244 CORE_CFLAGS += -g
245 CXXFLAGS += -g
246endif
247
248ifdef PARSER_DEBUG
249 PARSER_DEBUG_BISON := -t
250 PARSER_DEBUG_FLEX := -d
251 CFLAGS += -DPARSER_DEBUG
252 $(call detected_var,PARSER_DEBUG_BISON)
253 $(call detected_var,PARSER_DEBUG_FLEX)
254endif
255
256ifdef LTO
257 CORE_CFLAGS += -flto
258 CXXFLAGS += -flto
259endif
260
261# Try different combinations to accommodate systems that only have
262# python[2][3]-config in weird combinations in the following order of
263# priority from lowest to highest:
264# * python2-config as per pep-0394.
265# * python-config
266# * python3-config
267# * $(PYTHON)-config (If PYTHON is user supplied but PYTHON_CONFIG isn't)
268#
269PYTHON_AUTO := python-config
270PYTHON_AUTO := $(if $(call get-executable,python2-config),python2-config,$(PYTHON_AUTO))
271PYTHON_AUTO := $(if $(call get-executable,python-config),python-config,$(PYTHON_AUTO))
272PYTHON_AUTO := $(if $(call get-executable,python3-config),python3-config,$(PYTHON_AUTO))
273
274# If PYTHON is defined but PYTHON_CONFIG isn't, then take $(PYTHON)-config as if it was the user
275# supplied value for PYTHON_CONFIG. Because it's "user supplied", error out if it doesn't exist.
276ifdef PYTHON
277 ifndef PYTHON_CONFIG
278 PYTHON_CONFIG_AUTO := $(call get-executable,$(PYTHON)-config)
279 PYTHON_CONFIG := $(if $(PYTHON_CONFIG_AUTO),$(PYTHON_CONFIG_AUTO),\
280 $(call $(error $(PYTHON)-config not found)))
281 endif
282endif
283
284# Select either auto detected python and python-config or use user supplied values if they are
285# defined. get-executable-or-default fails with an error if the first argument is supplied but
286# doesn't exist.
287override PYTHON_CONFIG := $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON_AUTO))
288override PYTHON := $(call get-executable-or-default,PYTHON,$(subst -config,,$(PYTHON_CONFIG)))
289
290grep-libs = $(filter -l%,$(1))
291strip-libs = $(filter-out -l%,$(1))
292
293PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
294
295# Python 3.8 changed the output of `python-config --ldflags` to not include the
296# '-lpythonX.Y' flag unless '--embed' is also passed. The feature check for
297# libpython fails if that flag is not included in LDFLAGS
298ifeq ($(shell $(PYTHON_CONFIG_SQ) --ldflags --embed 2>&1 1>/dev/null; echo $$?), 0)
299 PYTHON_CONFIG_LDFLAGS := --ldflags --embed
300else
301 PYTHON_CONFIG_LDFLAGS := --ldflags
302endif
303
304ifdef PYTHON_CONFIG
305 PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) $(PYTHON_CONFIG_LDFLAGS) 2>/dev/null)
306 PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
307 PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
308 PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null)
309 FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
310 ifeq ($(CC_NO_CLANG), 0)
311 PYTHON_EMBED_CCOPTS := $(filter-out -ffat-lto-objects, $(PYTHON_EMBED_CCOPTS))
312 endif
313endif
314
315FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
316FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
317
318FEATURE_CHECK_LDFLAGS-libaio = -lrt
319
320FEATURE_CHECK_LDFLAGS-disassembler-four-args = -lbfd -lopcodes -ldl
321FEATURE_CHECK_LDFLAGS-disassembler-init-styled = -lbfd -lopcodes -ldl
322
323CORE_CFLAGS += -fno-omit-frame-pointer
324CORE_CFLAGS += -Wall
325CORE_CFLAGS += -Wextra
326CORE_CFLAGS += -std=gnu11
327
328CXXFLAGS += -std=gnu++17 -fno-exceptions -fno-rtti
329CXXFLAGS += -Wall
330CXXFLAGS += -Wextra
331CXXFLAGS += -fno-omit-frame-pointer
332
333HOSTCFLAGS += -Wall
334HOSTCFLAGS += -Wextra
335
336# Enforce a non-executable stack, as we may regress (again) in the future by
337# adding assembler files missing the .GNU-stack linker note.
338LDFLAGS += -Wl,-z,noexecstack
339
340EXTLIBS = -lpthread -lrt -lm -ldl
341
342ifneq ($(TCMALLOC),)
343 CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free
344 EXTLIBS += -ltcmalloc
345endif
346
347ifeq ($(FEATURES_DUMP),)
348# We will display at the end of this Makefile.config, using $(call feature_display_entries)
349# As we may retry some feature detection here, see the disassembler-four-args case, for instance
350 FEATURE_DISPLAY_DEFERRED := 1
351include $(srctree)/tools/build/Makefile.feature
352else
353include $(FEATURES_DUMP)
354endif
355
356ifeq ($(feature-stackprotector-all), 1)
357 CORE_CFLAGS += -fstack-protector-all
358endif
359
360ifeq ($(DEBUG),0)
361 ifeq ($(feature-fortify-source), 1)
362 CORE_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
363 endif
364endif
365
366INC_FLAGS += -I$(src-perf)/util/include
367INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
368INC_FLAGS += -I$(srctree)/tools/include/
369INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
370INC_FLAGS += -I$(srctree)/tools/include/uapi
371INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
372INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
373
374# $(obj-perf) for generated common-cmds.h
375# $(obj-perf)/util for generated bison/flex headers
376ifneq ($(OUTPUT),)
377INC_FLAGS += -I$(obj-perf)/util
378INC_FLAGS += -I$(obj-perf)
379endif
380
381INC_FLAGS += -I$(src-perf)/util
382INC_FLAGS += -I$(src-perf)
383
384CORE_CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
385
386CFLAGS += $(CORE_CFLAGS) $(INC_FLAGS)
387CXXFLAGS += $(INC_FLAGS)
388
389LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS)
390
391ifeq ($(feature-pthread-attr-setaffinity-np), 1)
392 CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
393endif
394
395ifeq ($(feature-pthread-barrier), 1)
396 CFLAGS += -DHAVE_PTHREAD_BARRIER
397endif
398
399ifndef NO_BIONIC
400 $(call feature_check,bionic)
401 ifeq ($(feature-bionic), 1)
402 BIONIC := 1
403 CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE
404 CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE
405 EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
406 EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
407 endif
408endif
409
410ifeq ($(feature-eventfd), 1)
411 CFLAGS += -DHAVE_EVENTFD_SUPPORT
412endif
413
414ifeq ($(feature-get_current_dir_name), 1)
415 CFLAGS += -DHAVE_GET_CURRENT_DIR_NAME
416endif
417
418ifeq ($(feature-gettid), 1)
419 CFLAGS += -DHAVE_GETTID
420endif
421
422ifeq ($(feature-file-handle), 1)
423 CFLAGS += -DHAVE_FILE_HANDLE
424endif
425
426ifdef NO_LIBELF
427 NO_DWARF := 1
428 NO_LIBUNWIND := 1
429 NO_LIBDW_DWARF_UNWIND := 1
430 NO_LIBBPF := 1
431 NO_JVMTI := 1
432else
433 ifeq ($(feature-libelf), 0)
434 ifeq ($(feature-glibc), 1)
435 LIBC_SUPPORT := 1
436 endif
437 ifeq ($(BIONIC),1)
438 LIBC_SUPPORT := 1
439 endif
440 ifeq ($(LIBC_SUPPORT),1)
441 $(error ERROR: No libelf found. Disables 'probe' tool, jvmti and BPF support. Please install libelf-dev, libelf-devel, elfutils-libelf-devel or build with NO_LIBELF=1.)
442 else
443 ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
444 ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
445 $(error No libasan found, please install libasan)
446 endif
447 endif
448
449 ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
450 ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
451 $(error No libubsan found, please install libubsan)
452 endif
453 endif
454
455 ifneq ($(filter s% -static%,$(LDFLAGS),),)
456 $(error No static glibc found, please install glibc-static)
457 else
458 $(error No gnu/libc-version.h found, please install glibc-dev[el])
459 endif
460 endif
461 else
462 ifndef NO_LIBDW_DWARF_UNWIND
463 ifneq ($(feature-libdw-dwarf-unwind),1)
464 NO_LIBDW_DWARF_UNWIND := 1
465 $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR)
466 endif
467 endif
468 ifneq ($(feature-dwarf), 1)
469 ifndef NO_DWARF
470 $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev)
471 NO_DWARF := 1
472 endif
473 else
474 ifneq ($(feature-dwarf_getlocations), 1)
475 $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157)
476 else
477 CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
478 endif # dwarf_getlocations
479 ifneq ($(feature-dwarf_getcfi), 1)
480 $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.142)
481 else
482 CFLAGS += -DHAVE_DWARF_CFI_SUPPORT
483 endif # dwarf_getcfi
484 endif # Dwarf support
485 endif # libelf support
486endif # NO_LIBELF
487
488ifeq ($(feature-libaio), 1)
489 ifndef NO_AIO
490 CFLAGS += -DHAVE_AIO_SUPPORT
491 endif
492endif
493
494ifdef NO_DWARF
495 NO_LIBDW_DWARF_UNWIND := 1
496endif
497
498ifeq ($(feature-scandirat), 1)
499 # Ignore having scandirat with memory sanitizer that lacks an interceptor.
500 ifeq ($(filter s% -fsanitize=memory%,$(EXTRA_CFLAGS),),)
501 CFLAGS += -DHAVE_SCANDIRAT_SUPPORT
502 endif
503endif
504
505ifeq ($(feature-sched_getcpu), 1)
506 CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
507endif
508
509ifeq ($(feature-setns), 1)
510 CFLAGS += -DHAVE_SETNS_SUPPORT
511 $(call detected,CONFIG_SETNS)
512endif
513
514ifdef CORESIGHT
515 $(call feature_check,libopencsd)
516 ifeq ($(feature-libopencsd), 1)
517 CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
518 ifeq ($(feature-reallocarray), 0)
519 CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
520 endif
521 LDFLAGS += $(LIBOPENCSD_LDFLAGS)
522 EXTLIBS += $(OPENCSDLIBS)
523 $(call detected,CONFIG_LIBOPENCSD)
524 ifdef CSTRACE_RAW
525 CFLAGS += -DCS_DEBUG_RAW
526 ifeq (${CSTRACE_RAW}, packed)
527 CFLAGS += -DCS_RAW_PACKED
528 endif
529 endif
530 else
531 $(error Error: No libopencsd library found or the version is not up-to-date. Please install recent libopencsd to build with CORESIGHT=1)
532 endif
533endif
534
535ifndef NO_ZLIB
536 ifeq ($(feature-zlib), 1)
537 CFLAGS += -DHAVE_ZLIB_SUPPORT
538 EXTLIBS += -lz
539 $(call detected,CONFIG_ZLIB)
540 else
541 NO_ZLIB := 1
542 endif
543endif
544
545ifndef NO_LIBELF
546 CFLAGS += -DHAVE_LIBELF_SUPPORT
547 EXTLIBS += -lelf
548 $(call detected,CONFIG_LIBELF)
549
550 ifeq ($(feature-libelf-getphdrnum), 1)
551 CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
552 endif
553
554 ifeq ($(feature-libelf-gelf_getnote), 1)
555 CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
556 else
557 $(warning gelf_getnote() not found on libelf, SDT support disabled)
558 endif
559
560 ifeq ($(feature-libelf-getshdrstrndx), 1)
561 CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
562 endif
563
564 ifndef NO_LIBDEBUGINFOD
565 $(call feature_check,libdebuginfod)
566 ifeq ($(feature-libdebuginfod), 1)
567 CFLAGS += -DHAVE_DEBUGINFOD_SUPPORT
568 EXTLIBS += -ldebuginfod
569 endif
570 endif
571
572 ifndef NO_DWARF
573 ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
574 $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled)
575 NO_DWARF := 1
576 else
577 CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
578 LDFLAGS += $(LIBDW_LDFLAGS)
579 EXTLIBS += ${DWARFLIBS}
580 $(call detected,CONFIG_DWARF)
581 endif # PERF_HAVE_DWARF_REGS
582 endif # NO_DWARF
583
584 ifndef NO_LIBBPF
585 ifeq ($(feature-bpf), 1)
586 # detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
587 $(call feature_check,libbpf)
588
589 ifdef LIBBPF_DYNAMIC
590 ifeq ($(feature-libbpf), 1)
591 EXTLIBS += -lbpf
592 CFLAGS += -DHAVE_LIBBPF_SUPPORT
593 $(call detected,CONFIG_LIBBPF)
594 $(call detected,CONFIG_LIBBPF_DYNAMIC)
595 else
596 $(error Error: No libbpf devel library found or older than v1.0, please install/update libbpf-devel)
597 endif
598 else
599 ifeq ($(NO_ZLIB), 1)
600 $(warning Warning: Statically building libbpf not possible as zlib is missing)
601 NO_LIBBPF := 1
602 else
603 # Libbpf will be built as a static library from tools/lib/bpf.
604 LIBBPF_STATIC := 1
605 $(call detected,CONFIG_LIBBPF)
606 CFLAGS += -DHAVE_LIBBPF_SUPPORT
607 endif
608 endif
609 endif
610 endif # NO_LIBBPF
611endif # NO_LIBELF
612
613ifndef NO_SDT
614 ifneq ($(feature-sdt), 1)
615 $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev)
616 NO_SDT := 1;
617 else
618 CFLAGS += -DHAVE_SDT_EVENT
619 $(call detected,CONFIG_SDT_EVENT)
620 endif
621endif
622
623ifdef PERF_HAVE_JITDUMP
624 ifndef NO_LIBELF
625 $(call detected,CONFIG_JITDUMP)
626 CFLAGS += -DHAVE_JITDUMP
627 endif
628endif
629
630ifeq ($(SRCARCH),powerpc)
631 ifndef NO_DWARF
632 CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
633 endif
634endif
635
636ifndef NO_LIBUNWIND
637 have_libunwind :=
638
639 $(call feature_check,libunwind-x86)
640 ifeq ($(feature-libunwind-x86), 1)
641 $(call detected,CONFIG_LIBUNWIND_X86)
642 CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
643 LDFLAGS += -lunwind-x86
644 EXTLIBS_LIBUNWIND += -lunwind-x86
645 have_libunwind = 1
646 endif
647
648 $(call feature_check,libunwind-aarch64)
649 ifeq ($(feature-libunwind-aarch64), 1)
650 $(call detected,CONFIG_LIBUNWIND_AARCH64)
651 CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
652 LDFLAGS += -lunwind-aarch64
653 EXTLIBS_LIBUNWIND += -lunwind-aarch64
654 have_libunwind = 1
655 $(call feature_check,libunwind-debug-frame-aarch64)
656 ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
657 $(warning No debug_frame support found in libunwind-aarch64)
658 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
659 endif
660 endif
661
662 ifneq ($(feature-libunwind), 1)
663 $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR)
664 NO_LOCAL_LIBUNWIND := 1
665 else
666 have_libunwind := 1
667 $(call detected,CONFIG_LOCAL_LIBUNWIND)
668 endif
669
670 ifneq ($(have_libunwind), 1)
671 NO_LIBUNWIND := 1
672 endif
673else
674 NO_LOCAL_LIBUNWIND := 1
675endif
676
677ifndef NO_LIBBPF
678 ifneq ($(feature-bpf), 1)
679 $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
680 NO_LIBBPF := 1
681 endif
682endif
683
684ifndef BUILD_BPF_SKEL
685 # BPF skeletons control a large number of perf features, by default
686 # they are enabled.
687 BUILD_BPF_SKEL := 1
688endif
689
690ifeq ($(BUILD_BPF_SKEL),1)
691 ifeq ($(filter -DHAVE_LIBELF_SUPPORT, $(CFLAGS)),)
692 $(warning Warning: Disabled BPF skeletons as libelf is required by bpftool)
693 BUILD_BPF_SKEL := 0
694 else ifeq ($(filter -DHAVE_ZLIB_SUPPORT, $(CFLAGS)),)
695 $(warning Warning: Disabled BPF skeletons as zlib is required by bpftool)
696 BUILD_BPF_SKEL := 0
697 else ifeq ($(filter -DHAVE_LIBBPF_SUPPORT, $(CFLAGS)),)
698 $(warning Warning: Disabled BPF skeletons as libbpf is required)
699 BUILD_BPF_SKEL := 0
700 else ifeq ($(call get-executable,$(CLANG)),)
701 $(warning Warning: Disabled BPF skeletons as clang ($(CLANG)) is missing)
702 BUILD_BPF_SKEL := 0
703 else
704 CLANG_VERSION := $(shell $(CLANG) --version | head -1 | sed 's/.*clang version \([[:digit:]]\+.[[:digit:]]\+.[[:digit:]]\+\).*/\1/g')
705 ifeq ($(call version-lt3,$(CLANG_VERSION),12.0.1),1)
706 $(warning Warning: Disabled BPF skeletons as reliable BTF generation needs at least $(CLANG) version 12.0.1)
707 BUILD_BPF_SKEL := 0
708 endif
709 endif
710 ifeq ($(BUILD_BPF_SKEL),1)
711 $(call feature_check,clang-bpf-co-re)
712 ifeq ($(feature-clang-bpf-co-re), 0)
713 $(warning Warning: Disabled BPF skeletons as clang is too old)
714 BUILD_BPF_SKEL := 0
715 endif
716 endif
717 ifeq ($(BUILD_BPF_SKEL),1)
718 $(call detected,CONFIG_PERF_BPF_SKEL)
719 CFLAGS += -DHAVE_BPF_SKEL
720 endif
721endif
722
723ifndef GEN_VMLINUX_H
724 VMLINUX_H=$(src-perf)/util/bpf_skel/vmlinux/vmlinux.h
725endif
726
727dwarf-post-unwind := 1
728dwarf-post-unwind-text := BUG
729
730# setup DWARF post unwinder
731ifdef NO_LIBUNWIND
732 ifdef NO_LIBDW_DWARF_UNWIND
733 $(warning Disabling post unwind, no support found.)
734 dwarf-post-unwind := 0
735 else
736 dwarf-post-unwind-text := libdw
737 $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
738 endif
739else
740 dwarf-post-unwind-text := libunwind
741 $(call detected,CONFIG_LIBUNWIND)
742 # Enable libunwind support by default.
743 ifndef NO_LIBDW_DWARF_UNWIND
744 NO_LIBDW_DWARF_UNWIND := 1
745 endif
746endif
747
748ifeq ($(dwarf-post-unwind),1)
749 CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
750 $(call detected,CONFIG_DWARF_UNWIND)
751else
752 NO_DWARF_UNWIND := 1
753endif
754
755ifndef NO_LOCAL_LIBUNWIND
756 ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
757 $(call feature_check,libunwind-debug-frame)
758 ifneq ($(feature-libunwind-debug-frame), 1)
759 $(warning No debug_frame support found in libunwind)
760 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
761 endif
762 else
763 # non-ARM has no dwarf_find_debug_frame() function:
764 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
765 endif
766 EXTLIBS += $(LIBUNWIND_LIBS)
767 LDFLAGS += $(LIBUNWIND_LIBS)
768endif
769ifeq ($(findstring -static,${LDFLAGS}),-static)
770 # gcc -static links libgcc_eh which contans piece of libunwind
771 LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
772endif
773
774ifndef NO_LIBUNWIND
775 CFLAGS += -DHAVE_LIBUNWIND_SUPPORT
776 CFLAGS += $(LIBUNWIND_CFLAGS)
777 LDFLAGS += $(LIBUNWIND_LDFLAGS)
778 EXTLIBS += $(EXTLIBS_LIBUNWIND)
779endif
780
781ifneq ($(NO_LIBTRACEEVENT),1)
782 ifeq ($(NO_SYSCALL_TABLE),0)
783 $(call detected,CONFIG_TRACE)
784 else
785 ifndef NO_LIBAUDIT
786 $(call feature_check,libaudit)
787 ifneq ($(feature-libaudit), 1)
788 $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev)
789 NO_LIBAUDIT := 1
790 else
791 CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
792 EXTLIBS += -laudit
793 $(call detected,CONFIG_TRACE)
794 endif
795 endif
796 endif
797endif
798
799ifndef NO_LIBCRYPTO
800 ifneq ($(feature-libcrypto), 1)
801 $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev)
802 NO_LIBCRYPTO := 1
803 else
804 CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
805 EXTLIBS += -lcrypto
806 $(call detected,CONFIG_CRYPTO)
807 endif
808endif
809
810ifndef NO_SLANG
811 ifneq ($(feature-libslang), 1)
812 ifneq ($(feature-libslang-include-subdir), 1)
813 $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev)
814 NO_SLANG := 1
815 else
816 CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
817 endif
818 endif
819 ifndef NO_SLANG
820 # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
821 CFLAGS += -DHAVE_SLANG_SUPPORT
822 EXTLIBS += -lslang
823 $(call detected,CONFIG_SLANG)
824 endif
825endif
826
827ifdef GTK2
828 FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
829 $(call feature_check,gtk2)
830 ifneq ($(feature-gtk2), 1)
831 $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev)
832 NO_GTK2 := 1
833 else
834 $(call feature_check,gtk2-infobar)
835 ifeq ($(feature-gtk2-infobar), 1)
836 GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
837 endif
838 CFLAGS += -DHAVE_GTK2_SUPPORT
839 GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
840 GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
841 EXTLIBS += -ldl
842 endif
843endif
844
845ifdef NO_LIBPERL
846 CFLAGS += -DNO_LIBPERL
847else
848 PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
849 PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
850 PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
851 PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
852 PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
853 PERL_EMBED_CCOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
854 PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
855 FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
856
857 ifneq ($(feature-libperl), 1)
858 CFLAGS += -DNO_LIBPERL
859 NO_LIBPERL := 1
860 $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev)
861 else
862 LDFLAGS += $(PERL_EMBED_LDFLAGS)
863 EXTLIBS += $(PERL_EMBED_LIBADD)
864 CFLAGS += -DHAVE_LIBPERL_SUPPORT
865 ifeq ($(CC_NO_CLANG), 0)
866 CFLAGS += -Wno-compound-token-split-by-macro
867 endif
868 $(call detected,CONFIG_LIBPERL)
869 endif
870endif
871
872ifeq ($(feature-timerfd), 1)
873 CFLAGS += -DHAVE_TIMERFD_SUPPORT
874else
875 $(warning No timerfd support. Disables 'perf kvm stat live')
876endif
877
878disable-python = $(eval $(disable-python_code))
879define disable-python_code
880 CFLAGS += -DNO_LIBPYTHON
881 $(warning $1)
882 NO_LIBPYTHON := 1
883endef
884
885PYTHON_EXTENSION_SUFFIX := '.so'
886ifdef NO_LIBPYTHON
887 $(call disable-python,Python support disabled by user)
888else
889
890 ifndef PYTHON
891 $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
892 else
893 PYTHON_WORD := $(call shell-wordify,$(PYTHON))
894
895 ifndef PYTHON_CONFIG
896 $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
897 else
898
899 ifneq ($(feature-libpython), 1)
900 $(call disable-python,No 'Python.h' was found: disables Python support - please install python-devel/python-dev)
901 else
902 LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
903 EXTLIBS += $(PYTHON_EMBED_LIBADD)
904 PYTHON_SETUPTOOLS_INSTALLED := $(shell $(PYTHON) -c 'import setuptools;' 2> /dev/null && echo "yes" || echo "no")
905 ifeq ($(PYTHON_SETUPTOOLS_INSTALLED), yes)
906 PYTHON_EXTENSION_SUFFIX := $(shell $(PYTHON) -c 'from importlib import machinery; print(machinery.EXTENSION_SUFFIXES[0])')
907 LANG_BINDINGS += $(obj-perf)python/perf$(PYTHON_EXTENSION_SUFFIX)
908 else
909 $(warning Missing python setuptools, the python binding won't be built, please install python3-setuptools or equivalent)
910 endif
911 CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
912 $(call detected,CONFIG_LIBPYTHON)
913 endif
914 endif
915 endif
916endif
917
918ifneq ($(NO_JEVENTS),1)
919 ifeq ($(wildcard pmu-events/arch/$(SRCARCH)/mapfile.csv),)
920 NO_JEVENTS := 1
921 endif
922endif
923ifneq ($(NO_JEVENTS),1)
924 NO_JEVENTS := 0
925 ifndef PYTHON
926 $(error ERROR: No python interpreter needed for jevents generation. Install python or build with NO_JEVENTS=1.)
927 else
928 # jevents.py uses f-strings present in Python 3.6 released in Dec. 2016.
929 JEVENTS_PYTHON_GOOD := $(shell $(PYTHON) -c 'import sys;print("1" if(sys.version_info.major >= 3 and sys.version_info.minor >= 6) else "0")' 2> /dev/null)
930 ifneq ($(JEVENTS_PYTHON_GOOD), 1)
931 $(error ERROR: Python interpreter needed for jevents generation too old (older than 3.6). Install a newer python or build with NO_JEVENTS=1.)
932 endif
933 endif
934endif
935
936ifdef BUILD_NONDISTRO
937 ifeq ($(feature-libbfd), 1)
938 EXTLIBS += -lbfd -lopcodes
939 else
940 # we are on a system that requires -liberty and (maybe) -lz
941 # to link against -lbfd; test each case individually here
942
943 # call all detections now so we get correct
944 # status in VF output
945 $(call feature_check,libbfd-liberty)
946 $(call feature_check,libbfd-liberty-z)
947
948 ifeq ($(feature-libbfd-liberty), 1)
949 EXTLIBS += -lbfd -lopcodes -liberty
950 FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl
951 FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -ldl
952 else
953 ifeq ($(feature-libbfd-liberty-z), 1)
954 EXTLIBS += -lbfd -lopcodes -liberty -lz
955 FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl
956 FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -lz -ldl
957 endif
958 endif
959 $(call feature_check,disassembler-four-args)
960 $(call feature_check,disassembler-init-styled)
961 endif
962
963 CFLAGS += -DHAVE_LIBBFD_SUPPORT
964 CXXFLAGS += -DHAVE_LIBBFD_SUPPORT
965 ifeq ($(feature-libbfd-buildid), 1)
966 CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
967 else
968 $(warning Old version of libbfd/binutils things like PE executable profiling will not be available)
969 endif
970endif
971
972ifndef NO_DEMANGLE
973 $(call feature_check,cxa-demangle)
974 ifeq ($(feature-cxa-demangle), 1)
975 EXTLIBS += -lstdc++
976 CFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT
977 CXXFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT
978 $(call detected,CONFIG_CXX_DEMANGLE)
979 endif
980 ifdef BUILD_NONDISTRO
981 ifeq ($(filter -liberty,$(EXTLIBS)),)
982 $(call feature_check,cplus-demangle)
983 ifeq ($(feature-cplus-demangle), 1)
984 EXTLIBS += -liberty
985 endif
986 endif
987 ifneq ($(filter -liberty,$(EXTLIBS)),)
988 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
989 CXXFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
990 endif
991 endif
992endif
993
994ifndef NO_LZMA
995 ifeq ($(feature-lzma), 1)
996 CFLAGS += -DHAVE_LZMA_SUPPORT
997 EXTLIBS += -llzma
998 $(call detected,CONFIG_LZMA)
999 else
1000 $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev)
1001 NO_LZMA := 1
1002 endif
1003endif
1004
1005ifndef NO_LIBZSTD
1006 ifeq ($(feature-libzstd), 1)
1007 CFLAGS += -DHAVE_ZSTD_SUPPORT
1008 CFLAGS += $(LIBZSTD_CFLAGS)
1009 LDFLAGS += $(LIBZSTD_LDFLAGS)
1010 EXTLIBS += -lzstd
1011 $(call detected,CONFIG_ZSTD)
1012 else
1013 $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR)
1014 NO_LIBZSTD := 1
1015 endif
1016endif
1017
1018ifndef NO_LIBCAP
1019 ifeq ($(feature-libcap), 1)
1020 CFLAGS += -DHAVE_LIBCAP_SUPPORT
1021 EXTLIBS += -lcap
1022 $(call detected,CONFIG_LIBCAP)
1023 else
1024 $(warning No libcap found, disables capability support, please install libcap-devel/libcap-dev)
1025 NO_LIBCAP := 1
1026 endif
1027endif
1028
1029ifndef NO_BACKTRACE
1030 ifeq ($(feature-backtrace), 1)
1031 CFLAGS += -DHAVE_BACKTRACE_SUPPORT
1032 endif
1033endif
1034
1035ifndef NO_LIBNUMA
1036 ifeq ($(feature-libnuma), 0)
1037 $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev)
1038 NO_LIBNUMA := 1
1039 else
1040 ifeq ($(feature-numa_num_possible_cpus), 0)
1041 $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8)
1042 NO_LIBNUMA := 1
1043 else
1044 CFLAGS += -DHAVE_LIBNUMA_SUPPORT
1045 EXTLIBS += -lnuma
1046 $(call detected,CONFIG_NUMA)
1047 endif
1048 endif
1049endif
1050
1051ifdef HAVE_KVM_STAT_SUPPORT
1052 CFLAGS += -DHAVE_KVM_STAT_SUPPORT
1053endif
1054
1055ifeq ($(feature-disassembler-four-args), 1)
1056 CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
1057endif
1058
1059ifeq ($(feature-disassembler-init-styled), 1)
1060 CFLAGS += -DDISASM_INIT_STYLED
1061endif
1062
1063ifeq (${IS_64_BIT}, 1)
1064 ifndef NO_PERF_READ_VDSO32
1065 $(call feature_check,compile-32)
1066 ifeq ($(feature-compile-32), 1)
1067 CFLAGS += -DHAVE_PERF_READ_VDSO32
1068 else
1069 NO_PERF_READ_VDSO32 := 1
1070 endif
1071 endif
1072 ifneq ($(SRCARCH), x86)
1073 NO_PERF_READ_VDSOX32 := 1
1074 endif
1075 ifndef NO_PERF_READ_VDSOX32
1076 $(call feature_check,compile-x32)
1077 ifeq ($(feature-compile-x32), 1)
1078 CFLAGS += -DHAVE_PERF_READ_VDSOX32
1079 else
1080 NO_PERF_READ_VDSOX32 := 1
1081 endif
1082 endif
1083else
1084 NO_PERF_READ_VDSO32 := 1
1085 NO_PERF_READ_VDSOX32 := 1
1086endif
1087
1088ifndef NO_LIBBABELTRACE
1089 $(call feature_check,libbabeltrace)
1090 ifeq ($(feature-libbabeltrace), 1)
1091 CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
1092 LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
1093 EXTLIBS += -lbabeltrace-ctf
1094 $(call detected,CONFIG_LIBBABELTRACE)
1095 else
1096 $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev)
1097 endif
1098endif
1099
1100ifndef NO_CAPSTONE
1101 $(call feature_check,libcapstone)
1102 ifeq ($(feature-libcapstone), 1)
1103 CFLAGS += -DHAVE_LIBCAPSTONE_SUPPORT $(LIBCAPSTONE_CFLAGS)
1104 LDFLAGS += $(LICAPSTONE_LDFLAGS)
1105 EXTLIBS += -lcapstone
1106 $(call detected,CONFIG_LIBCAPSTONE)
1107 else
1108 msg := $(warning No libcapstone found, disables disasm engine support for 'perf script', please install libcapstone-dev/capstone-devel);
1109 endif
1110endif
1111
1112ifndef NO_AUXTRACE
1113 ifeq ($(SRCARCH),x86)
1114 ifeq ($(feature-get_cpuid), 0)
1115 $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc)
1116 NO_AUXTRACE := 1
1117 endif
1118 endif
1119 ifndef NO_AUXTRACE
1120 $(call detected,CONFIG_AUXTRACE)
1121 CFLAGS += -DHAVE_AUXTRACE_SUPPORT
1122 ifeq ($(feature-reallocarray), 0)
1123 CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
1124 endif
1125 endif
1126endif
1127
1128ifdef EXTRA_TESTS
1129 $(call detected,CONFIG_EXTRA_TESTS)
1130 CFLAGS += -DHAVE_EXTRA_TESTS
1131endif
1132
1133ifndef NO_JVMTI
1134 ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
1135 JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
1136 else
1137 ifneq (,$(wildcard /usr/sbin/alternatives))
1138 JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
1139 endif
1140 endif
1141 ifndef JDIR
1142 $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
1143 NO_JVMTI := 1
1144 endif
1145endif
1146
1147ifndef NO_JVMTI
1148 FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
1149 $(call feature_check,jvmti)
1150 ifeq ($(feature-jvmti), 1)
1151 $(call detected_var,JDIR)
1152 ifndef NO_JVMTI_CMLR
1153 FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
1154 $(call feature_check,jvmti-cmlr)
1155 ifeq ($(feature-jvmti-cmlr), 1)
1156 CFLAGS += -DHAVE_JVMTI_CMLR
1157 endif
1158 endif # NO_JVMTI_CMLR
1159 else
1160 $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
1161 NO_JVMTI := 1
1162 endif
1163endif
1164
1165ifndef NO_LIBPFM4
1166 $(call feature_check,libpfm4)
1167 ifeq ($(feature-libpfm4), 1)
1168 CFLAGS += -DHAVE_LIBPFM
1169 EXTLIBS += -lpfm
1170 ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
1171 $(call detected,CONFIG_LIBPFM4)
1172 else
1173 $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev)
1174 endif
1175endif
1176
1177# libtraceevent is a recommended dependency picked up from the system.
1178ifneq ($(NO_LIBTRACEEVENT),1)
1179 $(call feature_check,libtraceevent)
1180 ifeq ($(feature-libtraceevent), 1)
1181 CFLAGS += -DHAVE_LIBTRACEEVENT $(LIBTRACEEVENT_CFLAGS)
1182 LDFLAGS += $(LIBTRACEEVENT_LDFLAGS)
1183 EXTLIBS += ${TRACEEVENTLIBS}
1184 LIBTRACEEVENT_VERSION := $(shell PKG_CONFIG_PATH=$(LIBTRACEEVENT_DIR) $(PKG_CONFIG) --modversion libtraceevent)
1185 LIBTRACEEVENT_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1186 LIBTRACEEVENT_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1187 LIBTRACEEVENT_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1188 LIBTRACEEVENT_VERSION_CPP := $(shell expr $(LIBTRACEEVENT_VERSION_1) \* 255 \* 255 + $(LIBTRACEEVENT_VERSION_2) \* 255 + $(LIBTRACEEVENT_VERSION_3))
1189 CFLAGS += -DLIBTRACEEVENT_VERSION=$(LIBTRACEEVENT_VERSION_CPP)
1190 $(call detected,CONFIG_LIBTRACEEVENT)
1191 else
1192 $(error ERROR: libtraceevent is missing. Please install libtraceevent-dev/libtraceevent-devel and/or set LIBTRACEEVENT_DIR or build with NO_LIBTRACEEVENT=1)
1193 endif
1194
1195 $(call feature_check,libtracefs)
1196 ifeq ($(feature-libtracefs), 1)
1197 EXTLIBS += -ltracefs
1198 LIBTRACEFS_VERSION := $(shell $(PKG_CONFIG) --modversion libtracefs)
1199 LIBTRACEFS_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEFS_VERSION)))
1200 LIBTRACEFS_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEFS_VERSION)))
1201 LIBTRACEFS_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEFS_VERSION)))
1202 LIBTRACEFS_VERSION_CPP := $(shell expr $(LIBTRACEFS_VERSION_1) \* 255 \* 255 + $(LIBTRACEFS_VERSION_2) \* 255 + $(LIBTRACEFS_VERSION_3))
1203 CFLAGS += -DLIBTRACEFS_VERSION=$(LIBTRACEFS_VERSION_CPP)
1204 endif
1205endif
1206
1207# Among the variables below, these:
1208# perfexecdir
1209# libbpf_include_dir
1210# perf_examples_dir
1211# template_dir
1212# mandir
1213# infodir
1214# htmldir
1215# ETC_PERFCONFIG (but not sysconfdir)
1216# can be specified as a relative path some/where/else;
1217# this is interpreted as relative to $(prefix) and "perf" at
1218# runtime figures out where they are based on the path to the executable.
1219# This can help installing the suite in a relocatable way.
1220
1221# Make the path relative to DESTDIR, not to prefix
1222ifndef DESTDIR
1223prefix ?= $(HOME)
1224endif
1225bindir_relative = bin
1226bindir = $(abspath $(prefix)/$(bindir_relative))
1227includedir_relative = include
1228includedir = $(abspath $(prefix)/$(includedir_relative))
1229mandir = share/man
1230infodir = share/info
1231perfexecdir = libexec/perf-core
1232# FIXME: system's libbpf header directory, where we expect to find bpf/bpf_helpers.h, for instance
1233libbpf_include_dir = /usr/include
1234perf_examples_dir = lib/perf/examples
1235sharedir = $(prefix)/share
1236template_dir = share/perf-core/templates
1237STRACE_GROUPS_DIR = share/perf-core/strace/groups
1238htmldir = share/doc/perf-doc
1239tipdir = share/doc/perf-tip
1240srcdir = $(srctree)/tools/perf
1241ifeq ($(prefix),/usr)
1242sysconfdir = /etc
1243ETC_PERFCONFIG = $(sysconfdir)/perfconfig
1244else
1245sysconfdir = $(prefix)/etc
1246ETC_PERFCONFIG = etc/perfconfig
1247endif
1248ifndef lib
1249ifeq ($(SRCARCH)$(IS_64_BIT), x861)
1250lib = lib64
1251else
1252lib = lib
1253endif
1254endif # lib
1255libdir = $(prefix)/$(lib)
1256
1257# Shell quote (do not use $(call) to accommodate ancient setups);
1258ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
1259STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
1260DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
1261bindir_SQ = $(subst ','\'',$(bindir))
1262includedir_SQ = $(subst ','\'',$(includedir))
1263mandir_SQ = $(subst ','\'',$(mandir))
1264infodir_SQ = $(subst ','\'',$(infodir))
1265perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
1266libbpf_include_dir_SQ = $(subst ','\'',$(libbpf_include_dir))
1267perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
1268template_dir_SQ = $(subst ','\'',$(template_dir))
1269htmldir_SQ = $(subst ','\'',$(htmldir))
1270tipdir_SQ = $(subst ','\'',$(tipdir))
1271prefix_SQ = $(subst ','\'',$(prefix))
1272sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
1273libdir_SQ = $(subst ','\'',$(libdir))
1274srcdir_SQ = $(subst ','\'',$(srcdir))
1275
1276ifneq ($(filter /%,$(firstword $(perfexecdir))),)
1277perfexec_instdir = $(perfexecdir)
1278perf_include_instdir = $(libbpf_include_dir)
1279perf_examples_instdir = $(perf_examples_dir)
1280STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
1281tip_instdir = $(tipdir)
1282else
1283perfexec_instdir = $(prefix)/$(perfexecdir)
1284perf_include_instdir = $(prefix)/$(libbpf_include_dir)
1285perf_examples_instdir = $(prefix)/$(perf_examples_dir)
1286STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
1287tip_instdir = $(prefix)/$(tipdir)
1288endif
1289perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
1290perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
1291perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
1292STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
1293tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
1294
1295export perfexec_instdir_SQ
1296
1297print_var = $(eval $(print_var_code)) $(info $(MSG))
1298define print_var_code
1299 MSG = $(shell printf '...%40s: %s' $(1) $($(1)))
1300endef
1301
1302ifeq ($(feature_display),1)
1303 $(call feature_display_entries)
1304endif
1305
1306ifeq ($(VF),1)
1307 # Display EXTRA features which are detected manualy
1308 # from here with feature_check call and thus cannot
1309 # be partof global state output.
1310 $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),) $(info $(MSG)))
1311 $(call print_var,prefix)
1312 $(call print_var,bindir)
1313 $(call print_var,libdir)
1314 $(call print_var,sysconfdir)
1315 $(call print_var,LIBUNWIND_DIR)
1316 $(call print_var,LIBDW_DIR)
1317 $(call print_var,JDIR)
1318 $(call print_var,LIBTRACEEVENT_DIR)
1319
1320 ifeq ($(dwarf-post-unwind),1)
1321 $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text)) $(info $(MSG))
1322 endif
1323endif
1324
1325$(info )
1326
1327$(call detected_var,bindir_SQ)
1328$(call detected_var,PYTHON_WORD)
1329ifneq ($(OUTPUT),)
1330$(call detected_var,OUTPUT)
1331endif
1332$(call detected_var,htmldir_SQ)
1333$(call detected_var,infodir_SQ)
1334$(call detected_var,mandir_SQ)
1335$(call detected_var,ETC_PERFCONFIG_SQ)
1336$(call detected_var,STRACE_GROUPS_DIR_SQ)
1337$(call detected_var,prefix_SQ)
1338$(call detected_var,perfexecdir_SQ)
1339$(call detected_var,libbpf_include_dir_SQ)
1340$(call detected_var,perf_examples_dir_SQ)
1341$(call detected_var,tipdir_SQ)
1342$(call detected_var,srcdir_SQ)
1343$(call detected_var,LIBDIR)
1344$(call detected_var,GTK_CFLAGS)
1345$(call detected_var,PERL_EMBED_CCOPTS)
1346$(call detected_var,PYTHON_EMBED_CCOPTS)
1347ifneq ($(BISON_FILE_PREFIX_MAP),)
1348$(call detected_var,BISON_FILE_PREFIX_MAP)
1349endif
1350
1351# re-generate FEATURE-DUMP as we may have called feature_check, found out
1352# extra libraries to add to LDFLAGS of some other test and then redo those
1353# tests, see the block about libbfd, disassembler-four-args, for instance.
1354$(shell rm -f $(FEATURE_DUMP_FILENAME))
1355$(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))