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
31CFLAGS += -I$(OUTPUT)arch/$(SRCARCH)/include/generated
32CFLAGS += -I$(OUTPUT)libperf/arch/$(SRCARCH)/include/generated/uapi
33
34# Additional ARCH settings for ppc
35ifeq ($(SRCARCH),powerpc)
36 ifndef NO_LIBUNWIND
37 LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
38 endif
39endif
40
41# Additional ARCH settings for x86
42ifeq ($(SRCARCH),x86)
43 $(call detected,CONFIG_X86)
44 ifeq (${IS_64_BIT}, 1)
45 CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT
46 ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
47 ifndef NO_LIBUNWIND
48 LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma
49 endif
50 $(call detected,CONFIG_X86_64)
51 else
52 ifndef NO_LIBUNWIND
53 LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
54 endif
55 endif
56endif
57
58ifeq ($(SRCARCH),arm)
59 ifndef NO_LIBUNWIND
60 LIBUNWIND_LIBS = -lunwind -lunwind-arm
61 endif
62endif
63
64ifeq ($(SRCARCH),arm64)
65 ifndef NO_LIBUNWIND
66 LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
67 endif
68endif
69
70ifeq ($(SRCARCH),loongarch)
71 ifndef NO_LIBUNWIND
72 LIBUNWIND_LIBS = -lunwind -lunwind-loongarch64
73 endif
74endif
75
76ifeq ($(ARCH),s390)
77 CFLAGS += -fPIC
78endif
79
80ifeq ($(ARCH),mips)
81 ifndef NO_LIBUNWIND
82 LIBUNWIND_LIBS = -lunwind -lunwind-mips
83 endif
84endif
85
86# So far there's only x86 and arm libdw unwind support merged in perf.
87# Disable it on all other architectures in case libdw unwind
88# support is detected in system. Add supported architectures
89# to the check.
90ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky riscv loongarch))
91 NO_LIBDW_DWARF_UNWIND := 1
92endif
93
94ifneq ($(LIBUNWIND),1)
95 NO_LIBUNWIND := 1
96endif
97
98ifeq ($(LIBUNWIND_LIBS),)
99 NO_LIBUNWIND := 1
100endif
101#
102# For linking with debug library, run like:
103#
104# make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
105#
106
107libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
108define libunwind_arch_set_flags_code
109 FEATURE_CHECK_CFLAGS-libunwind-$(1) = -I$(LIBUNWIND_DIR)/include
110 FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
111endef
112
113ifdef LIBUNWIND_DIR
114 LIBUNWIND_CFLAGS = -I$(LIBUNWIND_DIR)/include
115 LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
116 LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64 loongarch
117 $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
118endif
119
120ifndef NO_LIBUNWIND
121 # Set per-feature check compilation flags
122 FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
123 FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
124 FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
125 FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
126
127 FEATURE_CHECK_LDFLAGS-libunwind-arm += -lunwind -lunwind-arm
128 FEATURE_CHECK_LDFLAGS-libunwind-aarch64 += -lunwind -lunwind-aarch64
129 FEATURE_CHECK_LDFLAGS-libunwind-x86 += -lunwind -llzma -lunwind-x86
130 FEATURE_CHECK_LDFLAGS-libunwind-x86_64 += -lunwind -llzma -lunwind-x86_64
131endif
132
133FEATURE_CHECK_LDFLAGS-libcrypto = -lcrypto
134
135ifdef CSINCLUDES
136 LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
137endif
138OPENCSDLIBS := -lopencsd_c_api -lopencsd
139ifeq ($(findstring -static,${LDFLAGS}),-static)
140 OPENCSDLIBS += -lstdc++
141endif
142ifdef CSLIBS
143 LIBOPENCSD_LDFLAGS := -L$(CSLIBS)
144endif
145FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
146FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
147
148# for linking with debug library, run like:
149# make DEBUG=1 LIBDW_DIR=/opt/libdw/
150ifdef LIBDW_DIR
151 LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
152 LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
153endif
154DWARFLIBS := -ldw
155ifeq ($(findstring -static,${LDFLAGS}),-static)
156 DWARFLIBS += -lelf -lz -llzma -lbz2
157
158 LIBDW_VERSION := $(shell $(PKG_CONFIG) --modversion libdw).0.0
159 LIBDW_VERSION_1 := $(word 1, $(subst ., ,$(LIBDW_VERSION)))
160 LIBDW_VERSION_2 := $(word 2, $(subst ., ,$(LIBDW_VERSION)))
161
162 # Elfutils merged libebl.a into libdw.a starting from version 0.177,
163 # Link libebl.a only if libdw is older than this version.
164 ifeq ($(shell test $(LIBDW_VERSION_2) -lt 177; echo $$?),0)
165 DWARFLIBS += -lebl
166 endif
167
168 # Must put -ldl after -lebl for dependency
169 DWARFLIBS += -ldl
170endif
171FEATURE_CHECK_CFLAGS-libdw := $(LIBDW_CFLAGS)
172FEATURE_CHECK_LDFLAGS-libdw := $(LIBDW_LDFLAGS) $(DWARFLIBS)
173
174# for linking with debug library, run like:
175# make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
176ifdef LIBBABELTRACE_DIR
177 LIBBABELTRACE_CFLAGS := -I$(LIBBABELTRACE_DIR)/include
178 LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
179endif
180FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
181FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
182
183# for linking with debug library, run like:
184# make DEBUG=1 LIBCAPSTONE_DIR=/opt/capstone/
185ifdef LIBCAPSTONE_DIR
186 LIBCAPSTONE_CFLAGS := -I$(LIBCAPSTONE_DIR)/include
187 LIBCAPSTONE_LDFLAGS := -L$(LIBCAPSTONE_DIR)/
188endif
189FEATURE_CHECK_CFLAGS-libcapstone := $(LIBCAPSTONE_CFLAGS)
190FEATURE_CHECK_LDFLAGS-libcapstone := $(LIBCAPSTONE_LDFLAGS) -lcapstone
191
192ifdef LIBZSTD_DIR
193 LIBZSTD_CFLAGS := -I$(LIBZSTD_DIR)/lib
194 LIBZSTD_LDFLAGS := -L$(LIBZSTD_DIR)/lib
195endif
196FEATURE_CHECK_CFLAGS-libzstd := $(LIBZSTD_CFLAGS)
197FEATURE_CHECK_LDFLAGS-libzstd := $(LIBZSTD_LDFLAGS)
198
199# for linking with debug library, run like:
200# make DEBUG=1 PKG_CONFIG_PATH=/opt/libtraceevent/(lib|lib64)/pkgconfig
201
202ifneq ($(NO_LIBTRACEEVENT),1)
203 ifeq ($(call get-executable,$(PKG_CONFIG)),)
204 $(error Error: $(PKG_CONFIG) needed by libtraceevent is missing on this system, please install it)
205 endif
206endif
207
208FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
209# include ARCH specific config
210-include $(src-perf)/arch/$(SRCARCH)/Makefile
211
212include $(srctree)/tools/scripts/utilities.mak
213
214ifeq ($(call get-executable,$(FLEX)),)
215 $(error Error: $(FLEX) is missing on this system, please install it)
216endif
217
218ifeq ($(call get-executable,$(BISON)),)
219 $(error Error: $(BISON) is missing on this system, please install it)
220endif
221
222ifneq ($(OUTPUT),)
223 ifeq ($(shell expr $(shell $(BISON) --version | grep bison | sed -e 's/.\+ \([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/\1\2\3/g') \>\= 371), 1)
224 BISON_FILE_PREFIX_MAP := --file-prefix-map=$(OUTPUT)=
225 endif
226endif
227
228# Treat warnings as errors unless directed not to
229ifneq ($(WERROR),0)
230 CORE_CFLAGS += -Werror
231 CXXFLAGS += -Werror
232 HOSTCFLAGS += -Werror
233endif
234
235ifndef DEBUG
236 DEBUG := 0
237endif
238
239ifeq ($(DEBUG),0)
240CORE_CFLAGS += -DNDEBUG=1
241CORE_CFLAGS += -O3
242else
243 CORE_CFLAGS += -g
244 CXXFLAGS += -g
245endif
246
247ifdef PARSER_DEBUG
248 PARSER_DEBUG_BISON := -t
249 PARSER_DEBUG_FLEX := -d
250 CFLAGS += -DPARSER_DEBUG
251 $(call detected_var,PARSER_DEBUG_BISON)
252 $(call detected_var,PARSER_DEBUG_FLEX)
253endif
254
255ifdef LTO
256 CORE_CFLAGS += -flto
257 CXXFLAGS += -flto
258endif
259
260# Try different combinations to accommodate systems that only have
261# python[2][3]-config in weird combinations in the following order of
262# priority from lowest to highest:
263# * python2-config as per pep-0394.
264# * python-config
265# * python3-config
266# * $(PYTHON)-config (If PYTHON is user supplied but PYTHON_CONFIG isn't)
267#
268PYTHON_AUTO := python-config
269PYTHON_AUTO := $(if $(call get-executable,python2-config),python2-config,$(PYTHON_AUTO))
270PYTHON_AUTO := $(if $(call get-executable,python-config),python-config,$(PYTHON_AUTO))
271PYTHON_AUTO := $(if $(call get-executable,python3-config),python3-config,$(PYTHON_AUTO))
272
273# If PYTHON is defined but PYTHON_CONFIG isn't, then take $(PYTHON)-config as if it was the user
274# supplied value for PYTHON_CONFIG. Because it's "user supplied", error out if it doesn't exist.
275ifdef PYTHON
276 ifndef PYTHON_CONFIG
277 PYTHON_CONFIG_AUTO := $(call get-executable,$(PYTHON)-config)
278 PYTHON_CONFIG := $(if $(PYTHON_CONFIG_AUTO),$(PYTHON_CONFIG_AUTO),\
279 $(call $(error $(PYTHON)-config not found)))
280 endif
281endif
282
283# Select either auto detected python and python-config or use user supplied values if they are
284# defined. get-executable-or-default fails with an error if the first argument is supplied but
285# doesn't exist.
286override PYTHON_CONFIG := $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON_AUTO))
287override PYTHON := $(call get-executable-or-default,PYTHON,$(subst -config,,$(PYTHON_CONFIG)))
288
289grep-libs = $(filter -l%,$(1))
290strip-libs = $(filter-out -l%,$(1))
291
292PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
293
294# Python 3.8 changed the output of `python-config --ldflags` to not include the
295# '-lpythonX.Y' flag unless '--embed' is also passed. The feature check for
296# libpython fails if that flag is not included in LDFLAGS
297ifeq ($(shell $(PYTHON_CONFIG_SQ) --ldflags --embed 2>&1 1>/dev/null; echo $$?), 0)
298 PYTHON_CONFIG_LDFLAGS := --ldflags --embed
299else
300 PYTHON_CONFIG_LDFLAGS := --ldflags
301endif
302
303ifdef PYTHON_CONFIG
304 PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) $(PYTHON_CONFIG_LDFLAGS) 2>/dev/null)
305 # Update the python flags for cross compilation
306 ifdef CROSS_COMPILE
307 PYTHON_NATIVE := $(shell echo $(PYTHON_EMBED_LDOPTS) | sed 's/\(-L.*\/\)\(.*-linux-gnu\).*/\2/')
308 PYTHON_EMBED_LDOPTS := $(subst $(PYTHON_NATIVE),$(shell $(CC) -dumpmachine),$(PYTHON_EMBED_LDOPTS))
309 endif
310 PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
311 PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
312 PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null)
313 FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
314 ifeq ($(CC_NO_CLANG), 0)
315 PYTHON_EMBED_CCOPTS := $(filter-out -ffat-lto-objects, $(PYTHON_EMBED_CCOPTS))
316 endif
317endif
318
319FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
320FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
321
322FEATURE_CHECK_LDFLAGS-libaio = -lrt
323
324FEATURE_CHECK_LDFLAGS-disassembler-four-args = -lbfd -lopcodes -ldl
325FEATURE_CHECK_LDFLAGS-disassembler-init-styled = -lbfd -lopcodes -ldl
326
327CORE_CFLAGS += -fno-omit-frame-pointer
328CORE_CFLAGS += -Wall
329CORE_CFLAGS += -Wextra
330CORE_CFLAGS += -std=gnu11
331
332CXXFLAGS += -std=gnu++17 -fno-exceptions -fno-rtti
333CXXFLAGS += -Wall
334CXXFLAGS += -Wextra
335CXXFLAGS += -fno-omit-frame-pointer
336
337HOSTCFLAGS += -Wall
338HOSTCFLAGS += -Wextra
339
340# Enforce a non-executable stack, as we may regress (again) in the future by
341# adding assembler files missing the .GNU-stack linker note.
342LDFLAGS += -Wl,-z,noexecstack
343
344EXTLIBS = -lpthread -lrt -lm -ldl
345
346ifneq ($(TCMALLOC),)
347 CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free
348 EXTLIBS += -ltcmalloc
349endif
350
351ifeq ($(FEATURES_DUMP),)
352# We will display at the end of this Makefile.config, using $(call feature_display_entries)
353# As we may retry some feature detection here, see the disassembler-four-args case, for instance
354 FEATURE_DISPLAY_DEFERRED := 1
355include $(srctree)/tools/build/Makefile.feature
356else
357include $(FEATURES_DUMP)
358endif
359
360ifeq ($(feature-stackprotector-all), 1)
361 CORE_CFLAGS += -fstack-protector-all
362endif
363
364ifeq ($(DEBUG),0)
365 ifeq ($(feature-fortify-source), 1)
366 CORE_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
367 endif
368endif
369
370INC_FLAGS += -I$(src-perf)/util/include
371INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
372INC_FLAGS += -I$(srctree)/tools/include/
373INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
374INC_FLAGS += -I$(srctree)/tools/include/uapi
375INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
376INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
377
378# $(obj-perf) for generated common-cmds.h
379# $(obj-perf)/util for generated bison/flex headers
380ifneq ($(OUTPUT),)
381INC_FLAGS += -I$(obj-perf)/util
382INC_FLAGS += -I$(obj-perf)
383endif
384
385INC_FLAGS += -I$(src-perf)/util
386INC_FLAGS += -I$(src-perf)
387
388CORE_CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
389
390CFLAGS += $(CORE_CFLAGS) $(INC_FLAGS)
391CXXFLAGS += $(INC_FLAGS)
392
393LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS)
394
395ifeq ($(feature-pthread-attr-setaffinity-np), 1)
396 CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
397endif
398
399ifeq ($(feature-pthread-barrier), 1)
400 CFLAGS += -DHAVE_PTHREAD_BARRIER
401endif
402
403ifndef NO_BIONIC
404 $(call feature_check,bionic)
405 ifeq ($(feature-bionic), 1)
406 BIONIC := 1
407 CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE
408 CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE
409 EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
410 EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
411 endif
412endif
413
414ifeq ($(feature-eventfd), 1)
415 CFLAGS += -DHAVE_EVENTFD_SUPPORT
416endif
417
418ifeq ($(feature-get_current_dir_name), 1)
419 CFLAGS += -DHAVE_GET_CURRENT_DIR_NAME
420endif
421
422ifeq ($(feature-gettid), 1)
423 CFLAGS += -DHAVE_GETTID
424endif
425
426ifeq ($(feature-file-handle), 1)
427 CFLAGS += -DHAVE_FILE_HANDLE
428endif
429
430ifdef NO_LIBELF
431 NO_LIBDW := 1
432 NO_LIBUNWIND := 1
433 NO_LIBDW_DWARF_UNWIND := 1
434 NO_LIBBPF := 1
435 NO_JVMTI := 1
436else
437 ifeq ($(feature-libelf), 0)
438 ifeq ($(feature-glibc), 1)
439 LIBC_SUPPORT := 1
440 endif
441 ifeq ($(BIONIC),1)
442 LIBC_SUPPORT := 1
443 endif
444 ifeq ($(LIBC_SUPPORT),1)
445 $(error ERROR: No libelf found. Disables 'probe' tool, jvmti and BPF support. Please install libelf-dev, libelf-devel, elfutils-libelf-devel or build with NO_LIBELF=1.)
446 else
447 ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
448 ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
449 $(error No libasan found, please install libasan)
450 endif
451 endif
452
453 ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
454 ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
455 $(error No libubsan found, please install libubsan)
456 endif
457 endif
458
459 ifneq ($(filter s% -static%,$(LDFLAGS),),)
460 $(error No static glibc found, please install glibc-static)
461 else
462 $(error No gnu/libc-version.h found, please install glibc-dev[el])
463 endif
464 endif
465 else
466 ifneq ($(feature-libdw), 1)
467 ifndef NO_LIBDW
468 $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.157, disables dwarf support. Please install new elfutils-devel/libdw-dev)
469 NO_LIBDW := 1
470 endif
471 endif # Dwarf support
472 endif # libelf support
473endif # NO_LIBELF
474
475ifeq ($(feature-libaio), 1)
476 ifndef NO_AIO
477 CFLAGS += -DHAVE_AIO_SUPPORT
478 endif
479endif
480
481ifdef NO_LIBDW
482 NO_LIBDW_DWARF_UNWIND := 1
483endif
484
485ifeq ($(feature-scandirat), 1)
486 # Ignore having scandirat with memory sanitizer that lacks an interceptor.
487 ifeq ($(filter s% -fsanitize=memory%,$(EXTRA_CFLAGS),),)
488 CFLAGS += -DHAVE_SCANDIRAT_SUPPORT
489 endif
490endif
491
492ifeq ($(feature-sched_getcpu), 1)
493 CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
494endif
495
496ifeq ($(feature-setns), 1)
497 CFLAGS += -DHAVE_SETNS_SUPPORT
498 $(call detected,CONFIG_SETNS)
499endif
500
501ifeq ($(feature-reallocarray), 0)
502 CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
503endif
504
505ifdef CORESIGHT
506 $(call feature_check,libopencsd)
507 ifeq ($(feature-libopencsd), 1)
508 CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
509 LDFLAGS += $(LIBOPENCSD_LDFLAGS)
510 EXTLIBS += $(OPENCSDLIBS)
511 $(call detected,CONFIG_LIBOPENCSD)
512 ifdef CSTRACE_RAW
513 CFLAGS += -DCS_DEBUG_RAW
514 ifeq (${CSTRACE_RAW}, packed)
515 CFLAGS += -DCS_RAW_PACKED
516 endif
517 endif
518 else
519 $(error Error: No libopencsd library found or the version is not up-to-date. Please install recent libopencsd to build with CORESIGHT=1)
520 endif
521endif
522
523ifndef NO_ZLIB
524 ifeq ($(feature-zlib), 1)
525 CFLAGS += -DHAVE_ZLIB_SUPPORT
526 EXTLIBS += -lz
527 $(call detected,CONFIG_ZLIB)
528 else
529 NO_ZLIB := 1
530 endif
531endif
532
533ifndef NO_LIBELF
534 CFLAGS += -DHAVE_LIBELF_SUPPORT
535 EXTLIBS += -lelf
536 $(call detected,CONFIG_LIBELF)
537
538 ifeq ($(feature-libelf-getphdrnum), 1)
539 CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
540 endif
541
542 ifeq ($(feature-libelf-gelf_getnote), 1)
543 CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
544 else
545 $(warning gelf_getnote() not found on libelf, SDT support disabled)
546 endif
547
548 ifeq ($(feature-libelf-getshdrstrndx), 1)
549 CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
550 endif
551
552 ifeq ($(feature-libelf-zstd), 1)
553 ifdef NO_LIBZSTD
554 $(error Error: libzstd is required by libelf, please do not set NO_LIBZSTD)
555 endif
556 endif
557
558 ifndef NO_LIBDEBUGINFOD
559 $(call feature_check,libdebuginfod)
560 ifeq ($(feature-libdebuginfod), 1)
561 CFLAGS += -DHAVE_DEBUGINFOD_SUPPORT
562 EXTLIBS += -ldebuginfod
563 else
564 $(warning No elfutils/debuginfod.h found, no debuginfo server support, please install libdebuginfod-dev/elfutils-debuginfod-client-devel or equivalent)
565 endif
566 endif
567
568 ifndef NO_LIBDW
569 CFLAGS += -DHAVE_LIBDW_SUPPORT $(LIBDW_CFLAGS)
570 LDFLAGS += $(LIBDW_LDFLAGS)
571 EXTLIBS += ${DWARFLIBS}
572 $(call detected,CONFIG_LIBDW)
573 endif # NO_LIBDW
574
575 ifndef NO_LIBBPF
576 ifeq ($(feature-bpf), 1)
577 # detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
578 $(call feature_check,libbpf)
579
580 ifdef LIBBPF_DYNAMIC
581 ifeq ($(feature-libbpf), 1)
582 EXTLIBS += -lbpf
583 CFLAGS += -DHAVE_LIBBPF_SUPPORT
584 $(call detected,CONFIG_LIBBPF)
585 $(call detected,CONFIG_LIBBPF_DYNAMIC)
586 else
587 $(error Error: No libbpf devel library found or older than v1.0, please install/update libbpf-devel)
588 endif
589 else
590 ifeq ($(NO_ZLIB), 1)
591 $(warning Warning: Statically building libbpf not possible as zlib is missing)
592 NO_LIBBPF := 1
593 else
594 # Libbpf will be built as a static library from tools/lib/bpf.
595 LIBBPF_STATIC := 1
596 $(call detected,CONFIG_LIBBPF)
597 CFLAGS += -DHAVE_LIBBPF_SUPPORT
598 endif
599 endif
600 endif
601 endif # NO_LIBBPF
602endif # NO_LIBELF
603
604ifndef NO_SDT
605 ifneq ($(feature-sdt), 1)
606 $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev)
607 NO_SDT := 1;
608 else
609 CFLAGS += -DHAVE_SDT_EVENT
610 $(call detected,CONFIG_SDT_EVENT)
611 endif
612endif
613
614ifdef PERF_HAVE_JITDUMP
615 ifndef NO_LIBELF
616 $(call detected,CONFIG_JITDUMP)
617 CFLAGS += -DHAVE_JITDUMP
618 endif
619endif
620
621ifeq ($(SRCARCH),powerpc)
622 ifndef NO_LIBDW
623 CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
624 endif
625endif
626
627ifndef NO_LIBUNWIND
628 have_libunwind :=
629
630 $(call feature_check,libunwind)
631
632 $(call feature_check,libunwind-x86)
633 ifeq ($(feature-libunwind-x86), 1)
634 $(call detected,CONFIG_LIBUNWIND_X86)
635 CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
636 LDFLAGS += -lunwind-x86
637 EXTLIBS_LIBUNWIND += -lunwind-x86
638 have_libunwind = 1
639 endif
640
641 $(call feature_check,libunwind-aarch64)
642 ifeq ($(feature-libunwind-aarch64), 1)
643 $(call detected,CONFIG_LIBUNWIND_AARCH64)
644 CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
645 LDFLAGS += -lunwind-aarch64
646 EXTLIBS_LIBUNWIND += -lunwind-aarch64
647 have_libunwind = 1
648 $(call feature_check,libunwind-debug-frame-aarch64)
649 ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
650 $(warning No debug_frame support found in libunwind-aarch64)
651 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
652 endif
653 endif
654
655 ifneq ($(feature-libunwind), 1)
656 $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR and set LIBUNWIND=1 in the make command line as it is opt-in now)
657 NO_LOCAL_LIBUNWIND := 1
658 else
659 have_libunwind := 1
660 $(call detected,CONFIG_LOCAL_LIBUNWIND)
661 endif
662
663 ifneq ($(have_libunwind), 1)
664 NO_LIBUNWIND := 1
665 endif
666else
667 NO_LOCAL_LIBUNWIND := 1
668endif
669
670ifndef NO_LIBBPF
671 ifneq ($(feature-bpf), 1)
672 $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
673 NO_LIBBPF := 1
674 endif
675endif
676
677ifndef BUILD_BPF_SKEL
678 # BPF skeletons control a large number of perf features, by default
679 # they are enabled.
680 BUILD_BPF_SKEL := 1
681endif
682
683ifeq ($(BUILD_BPF_SKEL),1)
684 ifeq ($(filter -DHAVE_LIBELF_SUPPORT, $(CFLAGS)),)
685 $(warning Warning: Disabled BPF skeletons as libelf is required by bpftool)
686 BUILD_BPF_SKEL := 0
687 else ifeq ($(filter -DHAVE_ZLIB_SUPPORT, $(CFLAGS)),)
688 $(warning Warning: Disabled BPF skeletons as zlib is required by bpftool)
689 BUILD_BPF_SKEL := 0
690 else ifeq ($(filter -DHAVE_LIBBPF_SUPPORT, $(CFLAGS)),)
691 $(warning Warning: Disabled BPF skeletons as libbpf is required)
692 BUILD_BPF_SKEL := 0
693 else ifeq ($(call get-executable,$(CLANG)),)
694 $(warning Warning: Disabled BPF skeletons as clang ($(CLANG)) is missing)
695 BUILD_BPF_SKEL := 0
696 else
697 CLANG_VERSION := $(shell $(CLANG) --version | head -1 | sed 's/.*clang version \([[:digit:]]\+.[[:digit:]]\+.[[:digit:]]\+\).*/\1/g')
698 ifeq ($(call version-lt3,$(CLANG_VERSION),12.0.1),1)
699 $(warning Warning: Disabled BPF skeletons as reliable BTF generation needs at least $(CLANG) version 12.0.1)
700 BUILD_BPF_SKEL := 0
701 endif
702 endif
703 ifeq ($(BUILD_BPF_SKEL),1)
704 $(call feature_check,clang-bpf-co-re)
705 ifeq ($(feature-clang-bpf-co-re), 0)
706 $(warning Warning: Disabled BPF skeletons as clang is too old)
707 BUILD_BPF_SKEL := 0
708 endif
709 endif
710 ifeq ($(BUILD_BPF_SKEL),1)
711 $(call detected,CONFIG_PERF_BPF_SKEL)
712 CFLAGS += -DHAVE_BPF_SKEL
713 endif
714endif
715
716ifndef GEN_VMLINUX_H
717 VMLINUX_H=$(src-perf)/util/bpf_skel/vmlinux/vmlinux.h
718endif
719
720dwarf-post-unwind := 1
721dwarf-post-unwind-text := BUG
722
723# setup DWARF post unwinder
724ifdef NO_LIBUNWIND
725 ifdef NO_LIBDW_DWARF_UNWIND
726 $(warning Disabling post unwind, no support found.)
727 dwarf-post-unwind := 0
728 else
729 dwarf-post-unwind-text := libdw
730 $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
731 endif
732else
733 dwarf-post-unwind-text := libunwind
734 $(call detected,CONFIG_LIBUNWIND)
735 # Enable libunwind support by default.
736 ifndef NO_LIBDW_DWARF_UNWIND
737 NO_LIBDW_DWARF_UNWIND := 1
738 endif
739endif
740
741ifeq ($(dwarf-post-unwind),1)
742 CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
743 $(call detected,CONFIG_DWARF_UNWIND)
744endif
745
746ifndef NO_LIBUNWIND
747 ifndef NO_LOCAL_LIBUNWIND
748 ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
749 $(call feature_check,libunwind-debug-frame)
750 ifneq ($(feature-libunwind-debug-frame), 1)
751 $(warning No debug_frame support found in libunwind)
752 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
753 endif
754 else
755 # non-ARM has no dwarf_find_debug_frame() function:
756 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
757 endif
758 EXTLIBS += $(LIBUNWIND_LIBS)
759 LDFLAGS += $(LIBUNWIND_LIBS)
760 endif
761 ifeq ($(findstring -static,${LDFLAGS}),-static)
762 # gcc -static links libgcc_eh which contans piece of libunwind
763 LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
764 endif
765 CFLAGS += -DHAVE_LIBUNWIND_SUPPORT
766 CFLAGS += $(LIBUNWIND_CFLAGS)
767 LDFLAGS += $(LIBUNWIND_LDFLAGS)
768 EXTLIBS += $(EXTLIBS_LIBUNWIND)
769endif
770
771ifneq ($(NO_LIBTRACEEVENT),1)
772 $(call detected,CONFIG_TRACE)
773endif
774
775ifndef NO_LIBCRYPTO
776 ifneq ($(feature-libcrypto), 1)
777 $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev)
778 NO_LIBCRYPTO := 1
779 else
780 CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
781 EXTLIBS += -lcrypto
782 $(call detected,CONFIG_CRYPTO)
783 endif
784endif
785
786ifndef NO_SLANG
787 ifneq ($(feature-libslang), 1)
788 ifneq ($(feature-libslang-include-subdir), 1)
789 $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev)
790 NO_SLANG := 1
791 else
792 CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
793 endif
794 endif
795 ifndef NO_SLANG
796 # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
797 CFLAGS += -DHAVE_SLANG_SUPPORT
798 EXTLIBS += -lslang
799 $(call detected,CONFIG_SLANG)
800 endif
801endif
802
803ifdef GTK2
804 FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
805 $(call feature_check,gtk2)
806 ifneq ($(feature-gtk2), 1)
807 $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev)
808 NO_GTK2 := 1
809 else
810 $(call feature_check,gtk2-infobar)
811 ifeq ($(feature-gtk2-infobar), 1)
812 GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
813 endif
814 CFLAGS += -DHAVE_GTK2_SUPPORT
815 GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
816 GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
817 EXTLIBS += -ldl
818 endif
819endif
820
821ifdef NO_LIBPERL
822 CFLAGS += -DNO_LIBPERL
823else
824 PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
825 PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
826 PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
827 PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
828 PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
829 PERL_EMBED_CCOPTS := $(filter-out -flto% -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
830 PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
831 FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
832
833 ifneq ($(feature-libperl), 1)
834 CFLAGS += -DNO_LIBPERL
835 NO_LIBPERL := 1
836 $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev)
837 else
838 LDFLAGS += $(PERL_EMBED_LDFLAGS)
839 EXTLIBS += $(PERL_EMBED_LIBADD)
840 CFLAGS += -DHAVE_LIBPERL_SUPPORT
841 ifeq ($(CC_NO_CLANG), 0)
842 CFLAGS += -Wno-compound-token-split-by-macro
843 endif
844 $(call detected,CONFIG_LIBPERL)
845 endif
846endif
847
848ifeq ($(feature-timerfd), 1)
849 CFLAGS += -DHAVE_TIMERFD_SUPPORT
850else
851 $(warning No timerfd support. Disables 'perf kvm stat live')
852endif
853
854disable-python = $(eval $(disable-python_code))
855define disable-python_code
856 CFLAGS += -DNO_LIBPYTHON
857 $(warning $1)
858 NO_LIBPYTHON := 1
859endef
860
861PYTHON_EXTENSION_SUFFIX := '.so'
862ifdef NO_LIBPYTHON
863 $(call disable-python,Python support disabled by user)
864else
865
866 ifndef PYTHON
867 $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
868 else
869 PYTHON_WORD := $(call shell-wordify,$(PYTHON))
870
871 ifndef PYTHON_CONFIG
872 $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
873 else
874
875 ifneq ($(feature-libpython), 1)
876 $(call disable-python,No 'Python.h' was found: disables Python support - please install python-devel/python-dev)
877 else
878 LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
879 EXTLIBS += $(PYTHON_EMBED_LIBADD)
880 PYTHON_SETUPTOOLS_INSTALLED := $(shell $(PYTHON) -c 'import setuptools;' 2> /dev/null && echo "yes" || echo "no")
881 ifeq ($(PYTHON_SETUPTOOLS_INSTALLED), yes)
882 PYTHON_EXTENSION_SUFFIX := $(shell $(PYTHON) -c 'from importlib import machinery; print(machinery.EXTENSION_SUFFIXES[0])')
883 ifdef CROSS_COMPILE
884 PYTHON_EXTENSION_SUFFIX := $(subst $(PYTHON_NATIVE),$(shell $(CC) -dumpmachine),$(PYTHON_EXTENSION_SUFFIX))
885 endif
886 LANG_BINDINGS += $(obj-perf)python/perf$(PYTHON_EXTENSION_SUFFIX)
887 else
888 $(warning Missing python setuptools, the python binding won't be built, please install python3-setuptools or equivalent)
889 endif
890 CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
891 $(call detected,CONFIG_LIBPYTHON)
892 ifeq ($(filter -fPIC,$(CFLAGS)),)
893 # Building a shared library requires position independent code.
894 CFLAGS += -fPIC
895 CXXFLAGS += -fPIC
896 endif
897 endif
898 endif
899 endif
900endif
901
902ifneq ($(NO_JEVENTS),1)
903 ifeq ($(wildcard pmu-events/arch/$(SRCARCH)/mapfile.csv),)
904 NO_JEVENTS := 1
905 endif
906endif
907ifneq ($(NO_JEVENTS),1)
908 NO_JEVENTS := 0
909 ifndef PYTHON
910 $(error ERROR: No python interpreter needed for jevents generation. Install python or build with NO_JEVENTS=1.)
911 else
912 # jevents.py uses f-strings present in Python 3.6 released in Dec. 2016.
913 JEVENTS_PYTHON_GOOD := $(shell $(PYTHON) -c 'import sys;print("1" if(sys.version_info.major >= 3 and sys.version_info.minor >= 6) else "0")' 2> /dev/null)
914 ifneq ($(JEVENTS_PYTHON_GOOD), 1)
915 $(error ERROR: Python interpreter needed for jevents generation too old (older than 3.6). Install a newer python or build with NO_JEVENTS=1.)
916 endif
917 endif
918endif
919
920ifdef BUILD_NONDISTRO
921 ifeq ($(feature-libbfd), 1)
922 EXTLIBS += -lbfd -lopcodes
923 else
924 # we are on a system that requires -liberty and (maybe) -lz
925 # to link against -lbfd; test each case individually here
926
927 # call all detections now so we get correct
928 # status in VF output
929 $(call feature_check,libbfd-liberty)
930 $(call feature_check,libbfd-liberty-z)
931
932 ifeq ($(feature-libbfd-liberty), 1)
933 EXTLIBS += -lbfd -lopcodes -liberty
934 FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl
935 FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -ldl
936 else
937 ifeq ($(feature-libbfd-liberty-z), 1)
938 EXTLIBS += -lbfd -lopcodes -liberty -lz
939 FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl
940 FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -lz -ldl
941 endif
942 endif
943 $(call feature_check,disassembler-four-args)
944 $(call feature_check,disassembler-init-styled)
945 endif
946
947 CFLAGS += -DHAVE_LIBBFD_SUPPORT
948 CXXFLAGS += -DHAVE_LIBBFD_SUPPORT
949 ifeq ($(feature-libbfd-buildid), 1)
950 CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
951 else
952 $(warning Old version of libbfd/binutils things like PE executable profiling will not be available)
953 endif
954endif
955
956ifndef NO_LIBLLVM
957 $(call feature_check,llvm-perf)
958 ifeq ($(feature-llvm-perf), 1)
959 CFLAGS += -DHAVE_LIBLLVM_SUPPORT
960 CFLAGS += $(shell $(LLVM_CONFIG) --cflags)
961 CXXFLAGS += -DHAVE_LIBLLVM_SUPPORT
962 CXXFLAGS += $(shell $(LLVM_CONFIG) --cxxflags)
963 LIBLLVM = $(shell $(LLVM_CONFIG) --libs all) $(shell $(LLVM_CONFIG) --system-libs)
964 EXTLIBS += -L$(shell $(LLVM_CONFIG) --libdir) $(LIBLLVM)
965 EXTLIBS += -lstdc++
966 $(call detected,CONFIG_LIBLLVM)
967 else
968 $(warning No libllvm 13+ found, slower source file resolution, please install llvm-devel/llvm-dev)
969 NO_LIBLLVM := 1
970 endif
971endif
972
973ifndef NO_DEMANGLE
974 $(call feature_check,cxa-demangle)
975 ifeq ($(feature-cxa-demangle), 1)
976 EXTLIBS += -lstdc++
977 CFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT
978 CXXFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT
979 $(call detected,CONFIG_CXX_DEMANGLE)
980 endif
981 ifdef BUILD_NONDISTRO
982 ifeq ($(filter -liberty,$(EXTLIBS)),)
983 $(call feature_check,cplus-demangle)
984 ifeq ($(feature-cplus-demangle), 1)
985 EXTLIBS += -liberty
986 endif
987 endif
988 ifneq ($(filter -liberty,$(EXTLIBS)),)
989 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
990 CXXFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
991 endif
992 endif
993endif
994
995ifndef NO_LZMA
996 ifeq ($(feature-lzma), 1)
997 CFLAGS += -DHAVE_LZMA_SUPPORT
998 EXTLIBS += -llzma
999 $(call detected,CONFIG_LZMA)
1000 else
1001 $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev)
1002 NO_LZMA := 1
1003 endif
1004endif
1005
1006ifndef NO_LIBZSTD
1007 ifeq ($(feature-libzstd), 1)
1008 CFLAGS += -DHAVE_ZSTD_SUPPORT
1009 CFLAGS += $(LIBZSTD_CFLAGS)
1010 LDFLAGS += $(LIBZSTD_LDFLAGS)
1011 EXTLIBS += -lzstd
1012 $(call detected,CONFIG_ZSTD)
1013 else
1014 $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR)
1015 NO_LIBZSTD := 1
1016 endif
1017endif
1018
1019ifndef NO_BACKTRACE
1020 ifeq ($(feature-backtrace), 1)
1021 CFLAGS += -DHAVE_BACKTRACE_SUPPORT
1022 endif
1023endif
1024
1025ifndef NO_LIBNUMA
1026 ifeq ($(feature-libnuma), 0)
1027 $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev)
1028 NO_LIBNUMA := 1
1029 else
1030 ifeq ($(feature-numa_num_possible_cpus), 0)
1031 $(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 $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev)
1087 endif
1088endif
1089
1090ifndef NO_CAPSTONE
1091 $(call feature_check,libcapstone)
1092 ifeq ($(feature-libcapstone), 1)
1093 CFLAGS += -DHAVE_LIBCAPSTONE_SUPPORT $(LIBCAPSTONE_CFLAGS)
1094 LDFLAGS += $(LICAPSTONE_LDFLAGS)
1095 EXTLIBS += -lcapstone
1096 $(call detected,CONFIG_LIBCAPSTONE)
1097 else
1098 msg := $(warning No libcapstone found, disables disasm engine support for 'perf script', please install libcapstone-dev/capstone-devel);
1099 endif
1100endif
1101
1102ifndef NO_AUXTRACE
1103 ifeq ($(SRCARCH),x86)
1104 ifeq ($(feature-get_cpuid), 0)
1105 $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc)
1106 NO_AUXTRACE := 1
1107 endif
1108 endif
1109 ifndef NO_AUXTRACE
1110 $(call detected,CONFIG_AUXTRACE)
1111 CFLAGS += -DHAVE_AUXTRACE_SUPPORT
1112 endif
1113endif
1114
1115ifdef EXTRA_TESTS
1116 $(call detected,CONFIG_EXTRA_TESTS)
1117 CFLAGS += -DHAVE_EXTRA_TESTS
1118endif
1119
1120ifndef NO_JVMTI
1121 ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
1122 JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
1123 else
1124 ifneq (,$(wildcard /usr/sbin/alternatives))
1125 JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
1126 endif
1127 endif
1128 ifndef JDIR
1129 $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
1130 NO_JVMTI := 1
1131 endif
1132endif
1133
1134ifndef NO_JVMTI
1135 FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
1136 $(call feature_check,jvmti)
1137 ifeq ($(feature-jvmti), 1)
1138 $(call detected_var,JDIR)
1139 ifndef NO_JVMTI_CMLR
1140 FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
1141 $(call feature_check,jvmti-cmlr)
1142 ifeq ($(feature-jvmti-cmlr), 1)
1143 CFLAGS += -DHAVE_JVMTI_CMLR
1144 endif
1145 endif # NO_JVMTI_CMLR
1146 else
1147 $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
1148 NO_JVMTI := 1
1149 endif
1150endif
1151
1152ifndef NO_LIBPFM4
1153 $(call feature_check,libpfm4)
1154 ifeq ($(feature-libpfm4), 1)
1155 CFLAGS += -DHAVE_LIBPFM
1156 EXTLIBS += -lpfm
1157 ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
1158 $(call detected,CONFIG_LIBPFM4)
1159 else
1160 $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev)
1161 endif
1162endif
1163
1164# libtraceevent is a recommended dependency picked up from the system.
1165ifneq ($(NO_LIBTRACEEVENT),1)
1166 ifeq ($(feature-libtraceevent), 1)
1167 CFLAGS += -DHAVE_LIBTRACEEVENT $(shell $(PKG_CONFIG) --cflags libtraceevent)
1168 LDFLAGS += $(shell $(PKG_CONFIG) --libs-only-L libtraceevent)
1169 EXTLIBS += $(shell $(PKG_CONFIG) --libs-only-l libtraceevent)
1170 LIBTRACEEVENT_VERSION := $(shell $(PKG_CONFIG) --modversion libtraceevent).0.0
1171 LIBTRACEEVENT_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1172 LIBTRACEEVENT_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1173 LIBTRACEEVENT_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1174 LIBTRACEEVENT_VERSION_CPP := $(shell expr $(LIBTRACEEVENT_VERSION_1) \* 255 \* 255 + $(LIBTRACEEVENT_VERSION_2) \* 255 + $(LIBTRACEEVENT_VERSION_3))
1175 CFLAGS += -DLIBTRACEEVENT_VERSION=$(LIBTRACEEVENT_VERSION_CPP)
1176 $(call detected,CONFIG_LIBTRACEEVENT)
1177 else
1178 $(error ERROR: libtraceevent is missing. Please install libtraceevent-dev/libtraceevent-devel and/or set LIBTRACEEVENT_DIR or build with NO_LIBTRACEEVENT=1)
1179 endif
1180
1181 ifeq ($(feature-libtracefs), 1)
1182 CFLAGS += $(shell $(PKG_CONFIG) --cflags libtracefs)
1183 LDFLAGS += $(shell $(PKG_CONFIG) --libs-only-L libtracefs)
1184 EXTLIBS += $(shell $(PKG_CONFIG) --libs-only-l libtracefs)
1185 LIBTRACEFS_VERSION := $(shell $(PKG_CONFIG) --modversion libtracefs).0.0
1186 LIBTRACEFS_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEFS_VERSION)))
1187 LIBTRACEFS_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEFS_VERSION)))
1188 LIBTRACEFS_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEFS_VERSION)))
1189 LIBTRACEFS_VERSION_CPP := $(shell expr $(LIBTRACEFS_VERSION_1) \* 255 \* 255 + $(LIBTRACEFS_VERSION_2) \* 255 + $(LIBTRACEFS_VERSION_3))
1190 CFLAGS += -DLIBTRACEFS_VERSION=$(LIBTRACEFS_VERSION_CPP)
1191 else
1192 $(warning libtracefs is missing. Please install libtracefs-dev/libtracefs-devel)
1193 endif
1194endif
1195
1196# Among the variables below, these:
1197# perfexecdir
1198# libbpf_include_dir
1199# perf_examples_dir
1200# template_dir
1201# mandir
1202# infodir
1203# htmldir
1204# ETC_PERFCONFIG (but not sysconfdir)
1205# can be specified as a relative path some/where/else;
1206# this is interpreted as relative to $(prefix) and "perf" at
1207# runtime figures out where they are based on the path to the executable.
1208# This can help installing the suite in a relocatable way.
1209
1210# Make the path relative to DESTDIR, not to prefix
1211ifndef DESTDIR
1212prefix ?= $(HOME)
1213endif
1214bindir_relative = bin
1215bindir = $(abspath $(prefix)/$(bindir_relative))
1216includedir_relative = include
1217includedir = $(abspath $(prefix)/$(includedir_relative))
1218mandir = share/man
1219infodir = share/info
1220perfexecdir = libexec/perf-core
1221# FIXME: system's libbpf header directory, where we expect to find bpf/bpf_helpers.h, for instance
1222libbpf_include_dir = /usr/include
1223perf_examples_dir = lib/perf/examples
1224sharedir = $(prefix)/share
1225template_dir = share/perf-core/templates
1226STRACE_GROUPS_DIR = share/perf-core/strace/groups
1227htmldir = share/doc/perf-doc
1228tipdir = share/doc/perf-tip
1229srcdir = $(srctree)/tools/perf
1230ifeq ($(prefix),/usr)
1231sysconfdir = /etc
1232ETC_PERFCONFIG = $(sysconfdir)/perfconfig
1233else
1234sysconfdir = $(prefix)/etc
1235ETC_PERFCONFIG = etc/perfconfig
1236endif
1237ifndef lib
1238ifeq ($(SRCARCH)$(IS_64_BIT), x861)
1239lib = lib64
1240else
1241lib = lib
1242endif
1243endif # lib
1244libdir = $(prefix)/$(lib)
1245
1246# Shell quote (do not use $(call) to accommodate ancient setups);
1247ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
1248STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
1249DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
1250bindir_SQ = $(subst ','\'',$(bindir))
1251includedir_SQ = $(subst ','\'',$(includedir))
1252mandir_SQ = $(subst ','\'',$(mandir))
1253infodir_SQ = $(subst ','\'',$(infodir))
1254perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
1255libbpf_include_dir_SQ = $(subst ','\'',$(libbpf_include_dir))
1256perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
1257template_dir_SQ = $(subst ','\'',$(template_dir))
1258htmldir_SQ = $(subst ','\'',$(htmldir))
1259tipdir_SQ = $(subst ','\'',$(tipdir))
1260prefix_SQ = $(subst ','\'',$(prefix))
1261sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
1262libdir_SQ = $(subst ','\'',$(libdir))
1263srcdir_SQ = $(subst ','\'',$(srcdir))
1264
1265ifneq ($(filter /%,$(firstword $(perfexecdir))),)
1266perfexec_instdir = $(perfexecdir)
1267perf_include_instdir = $(libbpf_include_dir)
1268perf_examples_instdir = $(perf_examples_dir)
1269STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
1270tip_instdir = $(tipdir)
1271else
1272perfexec_instdir = $(prefix)/$(perfexecdir)
1273perf_include_instdir = $(prefix)/$(libbpf_include_dir)
1274perf_examples_instdir = $(prefix)/$(perf_examples_dir)
1275STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
1276tip_instdir = $(prefix)/$(tipdir)
1277endif
1278perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
1279perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
1280perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
1281STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
1282tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
1283
1284export perfexec_instdir_SQ
1285
1286print_var = $(eval $(print_var_code)) $(info $(MSG))
1287define print_var_code
1288 MSG = $(shell printf '...%40s: %s' $(1) $($(1)))
1289endef
1290
1291ifeq ($(feature_display),1)
1292 $(call feature_display_entries)
1293endif
1294
1295ifeq ($(VF),1)
1296 # Display EXTRA features which are detected manualy
1297 # from here with feature_check call and thus cannot
1298 # be partof global state output.
1299 $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),) $(info $(MSG)))
1300 $(call print_var,prefix)
1301 $(call print_var,bindir)
1302 $(call print_var,libdir)
1303 $(call print_var,sysconfdir)
1304 $(call print_var,LIBUNWIND_DIR)
1305 $(call print_var,LIBDW_DIR)
1306 $(call print_var,JDIR)
1307
1308 ifeq ($(dwarf-post-unwind),1)
1309 $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text)) $(info $(MSG))
1310 endif
1311endif
1312
1313$(info )
1314
1315$(call detected_var,bindir_SQ)
1316$(call detected_var,PYTHON_WORD)
1317ifneq ($(OUTPUT),)
1318$(call detected_var,OUTPUT)
1319endif
1320$(call detected_var,htmldir_SQ)
1321$(call detected_var,infodir_SQ)
1322$(call detected_var,mandir_SQ)
1323$(call detected_var,ETC_PERFCONFIG_SQ)
1324$(call detected_var,STRACE_GROUPS_DIR_SQ)
1325$(call detected_var,prefix_SQ)
1326$(call detected_var,perfexecdir_SQ)
1327$(call detected_var,libbpf_include_dir_SQ)
1328$(call detected_var,perf_examples_dir_SQ)
1329$(call detected_var,tipdir_SQ)
1330$(call detected_var,srcdir_SQ)
1331$(call detected_var,LIBDIR)
1332$(call detected_var,GTK_CFLAGS)
1333$(call detected_var,PERL_EMBED_CCOPTS)
1334$(call detected_var,PYTHON_EMBED_CCOPTS)
1335ifneq ($(BISON_FILE_PREFIX_MAP),)
1336$(call detected_var,BISON_FILE_PREFIX_MAP)
1337endif
1338
1339# re-generate FEATURE-DUMP as we may have called feature_check, found out
1340# extra libraries to add to LDFLAGS of some other test and then redo those
1341# tests, see the block about libbfd, disassembler-four-args, for instance.
1342$(shell rm -f $(FEATURE_DUMP_FILENAME))
1343$(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))