tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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),$(filter $(SRCARCH),x86 powerpc arm64 s390 mips loongarch))
35 NO_SYSCALL_TABLE := 0
36 endif
37
38 ifneq ($(NO_SYSCALL_TABLE),1)
39 CFLAGS += -DHAVE_SYSCALL_TABLE_SUPPORT
40 endif
41endif
42
43# Additional ARCH settings for ppc
44ifeq ($(SRCARCH),powerpc)
45 CFLAGS += -I$(OUTPUT)arch/powerpc/include/generated
46 LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
47endif
48
49# Additional ARCH settings for x86
50ifeq ($(SRCARCH),x86)
51 $(call detected,CONFIG_X86)
52 CFLAGS += -I$(OUTPUT)arch/x86/include/generated
53 ifeq (${IS_64_BIT}, 1)
54 CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT
55 ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
56 LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma
57 $(call detected,CONFIG_X86_64)
58 else
59 LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
60 endif
61endif
62
63ifeq ($(SRCARCH),arm)
64 LIBUNWIND_LIBS = -lunwind -lunwind-arm
65endif
66
67ifeq ($(SRCARCH),arm64)
68 CFLAGS += -I$(OUTPUT)arch/arm64/include/generated
69 LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
70endif
71
72ifeq ($(SRCARCH),loongarch)
73 CFLAGS += -I$(OUTPUT)arch/loongarch/include/generated
74 LIBUNWIND_LIBS = -lunwind -lunwind-loongarch64
75endif
76
77ifeq ($(ARCH),s390)
78 CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
79endif
80
81ifeq ($(ARCH),mips)
82 CFLAGS += -I$(OUTPUT)arch/mips/include/generated
83 LIBUNWIND_LIBS = -lunwind -lunwind-mips
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 $(SRCARCH),x86 arm arm64 powerpc s390 csky riscv loongarch))
91 NO_LIBDW_DWARF_UNWIND := 1
92endif
93
94ifeq ($(LIBUNWIND_LIBS),)
95 NO_LIBUNWIND := 1
96endif
97#
98# For linking with debug library, run like:
99#
100# make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
101#
102
103libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
104define libunwind_arch_set_flags_code
105 FEATURE_CHECK_CFLAGS-libunwind-$(1) = -I$(LIBUNWIND_DIR)/include
106 FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
107endef
108
109ifdef LIBUNWIND_DIR
110 LIBUNWIND_CFLAGS = -I$(LIBUNWIND_DIR)/include
111 LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
112 LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64 loongarch
113 $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
114endif
115
116# Set per-feature check compilation flags
117FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
118FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
119FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
120FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
121
122FEATURE_CHECK_LDFLAGS-libunwind-arm += -lunwind -lunwind-arm
123FEATURE_CHECK_LDFLAGS-libunwind-aarch64 += -lunwind -lunwind-aarch64
124FEATURE_CHECK_LDFLAGS-libunwind-x86 += -lunwind -llzma -lunwind-x86
125FEATURE_CHECK_LDFLAGS-libunwind-x86_64 += -lunwind -llzma -lunwind-x86_64
126
127FEATURE_CHECK_LDFLAGS-libcrypto = -lcrypto
128
129ifdef CSINCLUDES
130 LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
131endif
132OPENCSDLIBS := -lopencsd_c_api -lopencsd
133ifeq ($(findstring -static,${LDFLAGS}),-static)
134 OPENCSDLIBS += -lstdc++
135endif
136ifdef CSLIBS
137 LIBOPENCSD_LDFLAGS := -L$(CSLIBS)
138endif
139FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
140FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
141
142# for linking with debug library, run like:
143# make DEBUG=1 LIBDW_DIR=/opt/libdw/
144ifdef LIBDW_DIR
145 LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
146 LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
147endif
148DWARFLIBS := -ldw
149ifeq ($(findstring -static,${LDFLAGS}),-static)
150 DWARFLIBS += -lelf -lz -llzma -lbz2 -lzstd
151
152 LIBDW_VERSION := $(shell $(PKG_CONFIG) --modversion libdw).0.0
153 LIBDW_VERSION_1 := $(word 1, $(subst ., ,$(LIBDW_VERSION)))
154 LIBDW_VERSION_2 := $(word 2, $(subst ., ,$(LIBDW_VERSION)))
155
156 # Elfutils merged libebl.a into libdw.a starting from version 0.177,
157 # Link libebl.a only if libdw is older than this version.
158 ifeq ($(shell test $(LIBDW_VERSION_2) -lt 177; echo $$?),0)
159 DWARFLIBS += -lebl
160 endif
161
162 # Must put -ldl after -lebl for dependency
163 DWARFLIBS += -ldl
164endif
165FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
166FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
167
168# for linking with debug library, run like:
169# make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
170ifdef LIBBABELTRACE_DIR
171 LIBBABELTRACE_CFLAGS := -I$(LIBBABELTRACE_DIR)/include
172 LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
173endif
174FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
175FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
176
177# for linking with debug library, run like:
178# make DEBUG=1 LIBCAPSTONE_DIR=/opt/capstone/
179ifdef LIBCAPSTONE_DIR
180 LIBCAPSTONE_CFLAGS := -I$(LIBCAPSTONE_DIR)/include
181 LIBCAPSTONE_LDFLAGS := -L$(LIBCAPSTONE_DIR)/
182endif
183FEATURE_CHECK_CFLAGS-libcapstone := $(LIBCAPSTONE_CFLAGS)
184FEATURE_CHECK_LDFLAGS-libcapstone := $(LIBCAPSTONE_LDFLAGS) -lcapstone
185
186ifdef LIBZSTD_DIR
187 LIBZSTD_CFLAGS := -I$(LIBZSTD_DIR)/lib
188 LIBZSTD_LDFLAGS := -L$(LIBZSTD_DIR)/lib
189endif
190FEATURE_CHECK_CFLAGS-libzstd := $(LIBZSTD_CFLAGS)
191FEATURE_CHECK_LDFLAGS-libzstd := $(LIBZSTD_LDFLAGS)
192
193# for linking with debug library, run like:
194# make DEBUG=1 PKG_CONFIG_PATH=/opt/libtraceevent/(lib|lib64)/pkgconfig
195
196ifneq ($(NO_LIBTRACEEVENT),1)
197 ifeq ($(call get-executable,$(PKG_CONFIG)),)
198 $(error Error: $(PKG_CONFIG) needed by libtraceevent is missing on this system, please install it)
199 endif
200endif
201
202FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
203# include ARCH specific config
204-include $(src-perf)/arch/$(SRCARCH)/Makefile
205
206ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
207 CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
208endif
209
210include $(srctree)/tools/scripts/utilities.mak
211
212ifeq ($(call get-executable,$(FLEX)),)
213 $(error Error: $(FLEX) is missing on this system, please install it)
214endif
215
216ifeq ($(call get-executable,$(BISON)),)
217 $(error Error: $(BISON) is missing on this system, please install it)
218endif
219
220ifneq ($(OUTPUT),)
221 ifeq ($(shell expr $(shell $(BISON) --version | grep bison | sed -e 's/.\+ \([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/\1\2\3/g') \>\= 371), 1)
222 BISON_FILE_PREFIX_MAP := --file-prefix-map=$(OUTPUT)=
223 endif
224endif
225
226# Treat warnings as errors unless directed not to
227ifneq ($(WERROR),0)
228 CORE_CFLAGS += -Werror
229 CXXFLAGS += -Werror
230 HOSTCFLAGS += -Werror
231endif
232
233ifndef DEBUG
234 DEBUG := 0
235endif
236
237ifeq ($(DEBUG),0)
238CORE_CFLAGS += -DNDEBUG=1
239CORE_CFLAGS += -O3
240else
241 CORE_CFLAGS += -g
242 CXXFLAGS += -g
243endif
244
245ifdef PARSER_DEBUG
246 PARSER_DEBUG_BISON := -t
247 PARSER_DEBUG_FLEX := -d
248 CFLAGS += -DPARSER_DEBUG
249 $(call detected_var,PARSER_DEBUG_BISON)
250 $(call detected_var,PARSER_DEBUG_FLEX)
251endif
252
253ifdef LTO
254 CORE_CFLAGS += -flto
255 CXXFLAGS += -flto
256endif
257
258# Try different combinations to accommodate systems that only have
259# python[2][3]-config in weird combinations in the following order of
260# priority from lowest to highest:
261# * python2-config as per pep-0394.
262# * python-config
263# * python3-config
264# * $(PYTHON)-config (If PYTHON is user supplied but PYTHON_CONFIG isn't)
265#
266PYTHON_AUTO := python-config
267PYTHON_AUTO := $(if $(call get-executable,python2-config),python2-config,$(PYTHON_AUTO))
268PYTHON_AUTO := $(if $(call get-executable,python-config),python-config,$(PYTHON_AUTO))
269PYTHON_AUTO := $(if $(call get-executable,python3-config),python3-config,$(PYTHON_AUTO))
270
271# If PYTHON is defined but PYTHON_CONFIG isn't, then take $(PYTHON)-config as if it was the user
272# supplied value for PYTHON_CONFIG. Because it's "user supplied", error out if it doesn't exist.
273ifdef PYTHON
274 ifndef PYTHON_CONFIG
275 PYTHON_CONFIG_AUTO := $(call get-executable,$(PYTHON)-config)
276 PYTHON_CONFIG := $(if $(PYTHON_CONFIG_AUTO),$(PYTHON_CONFIG_AUTO),\
277 $(call $(error $(PYTHON)-config not found)))
278 endif
279endif
280
281# Select either auto detected python and python-config or use user supplied values if they are
282# defined. get-executable-or-default fails with an error if the first argument is supplied but
283# doesn't exist.
284override PYTHON_CONFIG := $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON_AUTO))
285override PYTHON := $(call get-executable-or-default,PYTHON,$(subst -config,,$(PYTHON_CONFIG)))
286
287grep-libs = $(filter -l%,$(1))
288strip-libs = $(filter-out -l%,$(1))
289
290PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
291
292# Python 3.8 changed the output of `python-config --ldflags` to not include the
293# '-lpythonX.Y' flag unless '--embed' is also passed. The feature check for
294# libpython fails if that flag is not included in LDFLAGS
295ifeq ($(shell $(PYTHON_CONFIG_SQ) --ldflags --embed 2>&1 1>/dev/null; echo $$?), 0)
296 PYTHON_CONFIG_LDFLAGS := --ldflags --embed
297else
298 PYTHON_CONFIG_LDFLAGS := --ldflags
299endif
300
301ifdef PYTHON_CONFIG
302 PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) $(PYTHON_CONFIG_LDFLAGS) 2>/dev/null)
303 # Update the python flags for cross compilation
304 ifdef CROSS_COMPILE
305 PYTHON_NATIVE := $(shell echo $(PYTHON_EMBED_LDOPTS) | sed 's/\(-L.*\/\)\(.*-linux-gnu\).*/\2/')
306 PYTHON_EMBED_LDOPTS := $(subst $(PYTHON_NATIVE),$(shell $(CC) -dumpmachine),$(PYTHON_EMBED_LDOPTS))
307 endif
308 PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
309 PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
310 PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null)
311 FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
312 ifeq ($(CC_NO_CLANG), 0)
313 PYTHON_EMBED_CCOPTS := $(filter-out -ffat-lto-objects, $(PYTHON_EMBED_CCOPTS))
314 endif
315endif
316
317FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
318FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
319
320FEATURE_CHECK_LDFLAGS-libaio = -lrt
321
322FEATURE_CHECK_LDFLAGS-disassembler-four-args = -lbfd -lopcodes -ldl
323FEATURE_CHECK_LDFLAGS-disassembler-init-styled = -lbfd -lopcodes -ldl
324
325CORE_CFLAGS += -fno-omit-frame-pointer
326CORE_CFLAGS += -Wall
327CORE_CFLAGS += -Wextra
328CORE_CFLAGS += -std=gnu11
329
330CXXFLAGS += -std=gnu++17 -fno-exceptions -fno-rtti
331CXXFLAGS += -Wall
332CXXFLAGS += -Wextra
333CXXFLAGS += -fno-omit-frame-pointer
334
335HOSTCFLAGS += -Wall
336HOSTCFLAGS += -Wextra
337
338# Enforce a non-executable stack, as we may regress (again) in the future by
339# adding assembler files missing the .GNU-stack linker note.
340LDFLAGS += -Wl,-z,noexecstack
341
342EXTLIBS = -lpthread -lrt -lm -ldl
343
344ifneq ($(TCMALLOC),)
345 CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free
346 EXTLIBS += -ltcmalloc
347endif
348
349ifeq ($(FEATURES_DUMP),)
350# We will display at the end of this Makefile.config, using $(call feature_display_entries)
351# As we may retry some feature detection here, see the disassembler-four-args case, for instance
352 FEATURE_DISPLAY_DEFERRED := 1
353include $(srctree)/tools/build/Makefile.feature
354else
355include $(FEATURES_DUMP)
356endif
357
358ifeq ($(feature-stackprotector-all), 1)
359 CORE_CFLAGS += -fstack-protector-all
360endif
361
362ifeq ($(DEBUG),0)
363 ifeq ($(feature-fortify-source), 1)
364 CORE_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
365 endif
366endif
367
368INC_FLAGS += -I$(src-perf)/util/include
369INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
370INC_FLAGS += -I$(srctree)/tools/include/
371INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
372INC_FLAGS += -I$(srctree)/tools/include/uapi
373INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
374INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
375
376# $(obj-perf) for generated common-cmds.h
377# $(obj-perf)/util for generated bison/flex headers
378ifneq ($(OUTPUT),)
379INC_FLAGS += -I$(obj-perf)/util
380INC_FLAGS += -I$(obj-perf)
381endif
382
383INC_FLAGS += -I$(src-perf)/util
384INC_FLAGS += -I$(src-perf)
385
386CORE_CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
387
388CFLAGS += $(CORE_CFLAGS) $(INC_FLAGS)
389CXXFLAGS += $(INC_FLAGS)
390
391LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS)
392
393ifeq ($(feature-pthread-attr-setaffinity-np), 1)
394 CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
395endif
396
397ifeq ($(feature-pthread-barrier), 1)
398 CFLAGS += -DHAVE_PTHREAD_BARRIER
399endif
400
401ifndef NO_BIONIC
402 $(call feature_check,bionic)
403 ifeq ($(feature-bionic), 1)
404 BIONIC := 1
405 CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE
406 CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE
407 EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
408 EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
409 endif
410endif
411
412ifeq ($(feature-eventfd), 1)
413 CFLAGS += -DHAVE_EVENTFD_SUPPORT
414endif
415
416ifeq ($(feature-get_current_dir_name), 1)
417 CFLAGS += -DHAVE_GET_CURRENT_DIR_NAME
418endif
419
420ifeq ($(feature-gettid), 1)
421 CFLAGS += -DHAVE_GETTID
422endif
423
424ifeq ($(feature-file-handle), 1)
425 CFLAGS += -DHAVE_FILE_HANDLE
426endif
427
428ifdef NO_LIBELF
429 NO_DWARF := 1
430 NO_LIBUNWIND := 1
431 NO_LIBDW_DWARF_UNWIND := 1
432 NO_LIBBPF := 1
433 NO_JVMTI := 1
434else
435 ifeq ($(feature-libelf), 0)
436 ifeq ($(feature-glibc), 1)
437 LIBC_SUPPORT := 1
438 endif
439 ifeq ($(BIONIC),1)
440 LIBC_SUPPORT := 1
441 endif
442 ifeq ($(LIBC_SUPPORT),1)
443 $(error ERROR: No libelf found. Disables 'probe' tool, jvmti and BPF support. Please install libelf-dev, libelf-devel, elfutils-libelf-devel or build with NO_LIBELF=1.)
444 else
445 ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
446 ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
447 $(error No libasan found, please install libasan)
448 endif
449 endif
450
451 ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
452 ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
453 $(error No libubsan found, please install libubsan)
454 endif
455 endif
456
457 ifneq ($(filter s% -static%,$(LDFLAGS),),)
458 $(error No static glibc found, please install glibc-static)
459 else
460 $(error No gnu/libc-version.h found, please install glibc-dev[el])
461 endif
462 endif
463 else
464 ifndef NO_LIBDW_DWARF_UNWIND
465 ifneq ($(feature-libdw-dwarf-unwind),1)
466 NO_LIBDW_DWARF_UNWIND := 1
467 $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR)
468 endif
469 endif
470 ifneq ($(feature-dwarf), 1)
471 ifndef NO_DWARF
472 $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev)
473 NO_DWARF := 1
474 endif
475 else
476 ifneq ($(feature-dwarf_getlocations), 1)
477 $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157)
478 else
479 CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
480 endif # dwarf_getlocations
481 ifneq ($(feature-dwarf_getcfi), 1)
482 $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.142)
483 else
484 CFLAGS += -DHAVE_DWARF_CFI_SUPPORT
485 endif # dwarf_getcfi
486 endif # Dwarf support
487 endif # libelf support
488endif # NO_LIBELF
489
490ifeq ($(feature-libaio), 1)
491 ifndef NO_AIO
492 CFLAGS += -DHAVE_AIO_SUPPORT
493 endif
494endif
495
496ifdef NO_DWARF
497 NO_LIBDW_DWARF_UNWIND := 1
498endif
499
500ifeq ($(feature-scandirat), 1)
501 # Ignore having scandirat with memory sanitizer that lacks an interceptor.
502 ifeq ($(filter s% -fsanitize=memory%,$(EXTRA_CFLAGS),),)
503 CFLAGS += -DHAVE_SCANDIRAT_SUPPORT
504 endif
505endif
506
507ifeq ($(feature-sched_getcpu), 1)
508 CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
509endif
510
511ifeq ($(feature-setns), 1)
512 CFLAGS += -DHAVE_SETNS_SUPPORT
513 $(call detected,CONFIG_SETNS)
514endif
515
516ifdef CORESIGHT
517 $(call feature_check,libopencsd)
518 ifeq ($(feature-libopencsd), 1)
519 CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
520 ifeq ($(feature-reallocarray), 0)
521 CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
522 endif
523 LDFLAGS += $(LIBOPENCSD_LDFLAGS)
524 EXTLIBS += $(OPENCSDLIBS)
525 $(call detected,CONFIG_LIBOPENCSD)
526 ifdef CSTRACE_RAW
527 CFLAGS += -DCS_DEBUG_RAW
528 ifeq (${CSTRACE_RAW}, packed)
529 CFLAGS += -DCS_RAW_PACKED
530 endif
531 endif
532 else
533 $(error Error: No libopencsd library found or the version is not up-to-date. Please install recent libopencsd to build with CORESIGHT=1)
534 endif
535endif
536
537ifndef NO_ZLIB
538 ifeq ($(feature-zlib), 1)
539 CFLAGS += -DHAVE_ZLIB_SUPPORT
540 EXTLIBS += -lz
541 $(call detected,CONFIG_ZLIB)
542 else
543 NO_ZLIB := 1
544 endif
545endif
546
547ifndef NO_LIBELF
548 CFLAGS += -DHAVE_LIBELF_SUPPORT
549 EXTLIBS += -lelf
550 $(call detected,CONFIG_LIBELF)
551
552 ifeq ($(feature-libelf-getphdrnum), 1)
553 CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
554 endif
555
556 ifeq ($(feature-libelf-gelf_getnote), 1)
557 CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
558 else
559 $(warning gelf_getnote() not found on libelf, SDT support disabled)
560 endif
561
562 ifeq ($(feature-libelf-getshdrstrndx), 1)
563 CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
564 endif
565
566 ifndef NO_LIBDEBUGINFOD
567 $(call feature_check,libdebuginfod)
568 ifeq ($(feature-libdebuginfod), 1)
569 CFLAGS += -DHAVE_DEBUGINFOD_SUPPORT
570 EXTLIBS += -ldebuginfod
571 endif
572 endif
573
574 ifndef NO_DWARF
575 ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
576 $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled)
577 NO_DWARF := 1
578 else
579 CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
580 LDFLAGS += $(LIBDW_LDFLAGS)
581 EXTLIBS += ${DWARFLIBS}
582 $(call detected,CONFIG_DWARF)
583 endif # PERF_HAVE_DWARF_REGS
584 endif # NO_DWARF
585
586 ifndef NO_LIBBPF
587 ifeq ($(feature-bpf), 1)
588 # detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
589 $(call feature_check,libbpf)
590
591 ifdef LIBBPF_DYNAMIC
592 ifeq ($(feature-libbpf), 1)
593 EXTLIBS += -lbpf
594 CFLAGS += -DHAVE_LIBBPF_SUPPORT
595 $(call detected,CONFIG_LIBBPF)
596 $(call detected,CONFIG_LIBBPF_DYNAMIC)
597 else
598 $(error Error: No libbpf devel library found or older than v1.0, please install/update libbpf-devel)
599 endif
600 else
601 ifeq ($(NO_ZLIB), 1)
602 $(warning Warning: Statically building libbpf not possible as zlib is missing)
603 NO_LIBBPF := 1
604 else
605 # Libbpf will be built as a static library from tools/lib/bpf.
606 LIBBPF_STATIC := 1
607 $(call detected,CONFIG_LIBBPF)
608 CFLAGS += -DHAVE_LIBBPF_SUPPORT
609 endif
610 endif
611 endif
612 endif # NO_LIBBPF
613endif # NO_LIBELF
614
615ifndef NO_SDT
616 ifneq ($(feature-sdt), 1)
617 $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev)
618 NO_SDT := 1;
619 else
620 CFLAGS += -DHAVE_SDT_EVENT
621 $(call detected,CONFIG_SDT_EVENT)
622 endif
623endif
624
625ifdef PERF_HAVE_JITDUMP
626 ifndef NO_LIBELF
627 $(call detected,CONFIG_JITDUMP)
628 CFLAGS += -DHAVE_JITDUMP
629 endif
630endif
631
632ifeq ($(SRCARCH),powerpc)
633 ifndef NO_DWARF
634 CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
635 endif
636endif
637
638ifndef NO_LIBUNWIND
639 have_libunwind :=
640
641 $(call feature_check,libunwind-x86)
642 ifeq ($(feature-libunwind-x86), 1)
643 $(call detected,CONFIG_LIBUNWIND_X86)
644 CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
645 LDFLAGS += -lunwind-x86
646 EXTLIBS_LIBUNWIND += -lunwind-x86
647 have_libunwind = 1
648 endif
649
650 $(call feature_check,libunwind-aarch64)
651 ifeq ($(feature-libunwind-aarch64), 1)
652 $(call detected,CONFIG_LIBUNWIND_AARCH64)
653 CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
654 LDFLAGS += -lunwind-aarch64
655 EXTLIBS_LIBUNWIND += -lunwind-aarch64
656 have_libunwind = 1
657 $(call feature_check,libunwind-debug-frame-aarch64)
658 ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
659 $(warning No debug_frame support found in libunwind-aarch64)
660 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
661 endif
662 endif
663
664 ifneq ($(feature-libunwind), 1)
665 $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR)
666 NO_LOCAL_LIBUNWIND := 1
667 else
668 have_libunwind := 1
669 $(call detected,CONFIG_LOCAL_LIBUNWIND)
670 endif
671
672 ifneq ($(have_libunwind), 1)
673 NO_LIBUNWIND := 1
674 endif
675else
676 NO_LOCAL_LIBUNWIND := 1
677endif
678
679ifndef NO_LIBBPF
680 ifneq ($(feature-bpf), 1)
681 $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
682 NO_LIBBPF := 1
683 endif
684endif
685
686ifndef BUILD_BPF_SKEL
687 # BPF skeletons control a large number of perf features, by default
688 # they are enabled.
689 BUILD_BPF_SKEL := 1
690endif
691
692ifeq ($(BUILD_BPF_SKEL),1)
693 ifeq ($(filter -DHAVE_LIBELF_SUPPORT, $(CFLAGS)),)
694 $(warning Warning: Disabled BPF skeletons as libelf is required by bpftool)
695 BUILD_BPF_SKEL := 0
696 else ifeq ($(filter -DHAVE_ZLIB_SUPPORT, $(CFLAGS)),)
697 $(warning Warning: Disabled BPF skeletons as zlib is required by bpftool)
698 BUILD_BPF_SKEL := 0
699 else ifeq ($(filter -DHAVE_LIBBPF_SUPPORT, $(CFLAGS)),)
700 $(warning Warning: Disabled BPF skeletons as libbpf is required)
701 BUILD_BPF_SKEL := 0
702 else ifeq ($(call get-executable,$(CLANG)),)
703 $(warning Warning: Disabled BPF skeletons as clang ($(CLANG)) is missing)
704 BUILD_BPF_SKEL := 0
705 else
706 CLANG_VERSION := $(shell $(CLANG) --version | head -1 | sed 's/.*clang version \([[:digit:]]\+.[[:digit:]]\+.[[:digit:]]\+\).*/\1/g')
707 ifeq ($(call version-lt3,$(CLANG_VERSION),12.0.1),1)
708 $(warning Warning: Disabled BPF skeletons as reliable BTF generation needs at least $(CLANG) version 12.0.1)
709 BUILD_BPF_SKEL := 0
710 endif
711 endif
712 ifeq ($(BUILD_BPF_SKEL),1)
713 $(call feature_check,clang-bpf-co-re)
714 ifeq ($(feature-clang-bpf-co-re), 0)
715 $(warning Warning: Disabled BPF skeletons as clang is too old)
716 BUILD_BPF_SKEL := 0
717 endif
718 endif
719 ifeq ($(BUILD_BPF_SKEL),1)
720 $(call detected,CONFIG_PERF_BPF_SKEL)
721 CFLAGS += -DHAVE_BPF_SKEL
722 endif
723endif
724
725ifndef GEN_VMLINUX_H
726 VMLINUX_H=$(src-perf)/util/bpf_skel/vmlinux/vmlinux.h
727endif
728
729dwarf-post-unwind := 1
730dwarf-post-unwind-text := BUG
731
732# setup DWARF post unwinder
733ifdef NO_LIBUNWIND
734 ifdef NO_LIBDW_DWARF_UNWIND
735 $(warning Disabling post unwind, no support found.)
736 dwarf-post-unwind := 0
737 else
738 dwarf-post-unwind-text := libdw
739 $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
740 endif
741else
742 dwarf-post-unwind-text := libunwind
743 $(call detected,CONFIG_LIBUNWIND)
744 # Enable libunwind support by default.
745 ifndef NO_LIBDW_DWARF_UNWIND
746 NO_LIBDW_DWARF_UNWIND := 1
747 endif
748endif
749
750ifeq ($(dwarf-post-unwind),1)
751 CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
752 $(call detected,CONFIG_DWARF_UNWIND)
753else
754 NO_DWARF_UNWIND := 1
755endif
756
757ifndef NO_LOCAL_LIBUNWIND
758 ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
759 $(call feature_check,libunwind-debug-frame)
760 ifneq ($(feature-libunwind-debug-frame), 1)
761 $(warning No debug_frame support found in libunwind)
762 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
763 endif
764 else
765 # non-ARM has no dwarf_find_debug_frame() function:
766 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
767 endif
768 EXTLIBS += $(LIBUNWIND_LIBS)
769 LDFLAGS += $(LIBUNWIND_LIBS)
770endif
771ifeq ($(findstring -static,${LDFLAGS}),-static)
772 # gcc -static links libgcc_eh which contans piece of libunwind
773 LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
774endif
775
776ifndef NO_LIBUNWIND
777 CFLAGS += -DHAVE_LIBUNWIND_SUPPORT
778 CFLAGS += $(LIBUNWIND_CFLAGS)
779 LDFLAGS += $(LIBUNWIND_LDFLAGS)
780 EXTLIBS += $(EXTLIBS_LIBUNWIND)
781endif
782
783ifneq ($(NO_LIBTRACEEVENT),1)
784 ifeq ($(NO_SYSCALL_TABLE),0)
785 $(call detected,CONFIG_TRACE)
786 else
787 ifndef NO_LIBAUDIT
788 $(call feature_check,libaudit)
789 ifneq ($(feature-libaudit), 1)
790 $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev)
791 NO_LIBAUDIT := 1
792 else
793 CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
794 EXTLIBS += -laudit
795 $(call detected,CONFIG_TRACE)
796 endif
797 endif
798 endif
799endif
800
801ifndef NO_LIBCRYPTO
802 ifneq ($(feature-libcrypto), 1)
803 $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev)
804 NO_LIBCRYPTO := 1
805 else
806 CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
807 EXTLIBS += -lcrypto
808 $(call detected,CONFIG_CRYPTO)
809 endif
810endif
811
812ifndef NO_SLANG
813 ifneq ($(feature-libslang), 1)
814 ifneq ($(feature-libslang-include-subdir), 1)
815 $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev)
816 NO_SLANG := 1
817 else
818 CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
819 endif
820 endif
821 ifndef NO_SLANG
822 # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
823 CFLAGS += -DHAVE_SLANG_SUPPORT
824 EXTLIBS += -lslang
825 $(call detected,CONFIG_SLANG)
826 endif
827endif
828
829ifdef GTK2
830 FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
831 $(call feature_check,gtk2)
832 ifneq ($(feature-gtk2), 1)
833 $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev)
834 NO_GTK2 := 1
835 else
836 $(call feature_check,gtk2-infobar)
837 ifeq ($(feature-gtk2-infobar), 1)
838 GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
839 endif
840 CFLAGS += -DHAVE_GTK2_SUPPORT
841 GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
842 GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
843 EXTLIBS += -ldl
844 endif
845endif
846
847ifdef NO_LIBPERL
848 CFLAGS += -DNO_LIBPERL
849else
850 PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
851 PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
852 PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
853 PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
854 PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
855 PERL_EMBED_CCOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
856 PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
857 FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
858
859 ifneq ($(feature-libperl), 1)
860 CFLAGS += -DNO_LIBPERL
861 NO_LIBPERL := 1
862 $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev)
863 else
864 LDFLAGS += $(PERL_EMBED_LDFLAGS)
865 EXTLIBS += $(PERL_EMBED_LIBADD)
866 CFLAGS += -DHAVE_LIBPERL_SUPPORT
867 ifeq ($(CC_NO_CLANG), 0)
868 CFLAGS += -Wno-compound-token-split-by-macro
869 endif
870 $(call detected,CONFIG_LIBPERL)
871 endif
872endif
873
874ifeq ($(feature-timerfd), 1)
875 CFLAGS += -DHAVE_TIMERFD_SUPPORT
876else
877 $(warning No timerfd support. Disables 'perf kvm stat live')
878endif
879
880disable-python = $(eval $(disable-python_code))
881define disable-python_code
882 CFLAGS += -DNO_LIBPYTHON
883 $(warning $1)
884 NO_LIBPYTHON := 1
885endef
886
887PYTHON_EXTENSION_SUFFIX := '.so'
888ifdef NO_LIBPYTHON
889 $(call disable-python,Python support disabled by user)
890else
891
892 ifndef PYTHON
893 $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
894 else
895 PYTHON_WORD := $(call shell-wordify,$(PYTHON))
896
897 ifndef PYTHON_CONFIG
898 $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
899 else
900
901 ifneq ($(feature-libpython), 1)
902 $(call disable-python,No 'Python.h' was found: disables Python support - please install python-devel/python-dev)
903 else
904 LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
905 EXTLIBS += $(PYTHON_EMBED_LIBADD)
906 PYTHON_SETUPTOOLS_INSTALLED := $(shell $(PYTHON) -c 'import setuptools;' 2> /dev/null && echo "yes" || echo "no")
907 ifeq ($(PYTHON_SETUPTOOLS_INSTALLED), yes)
908 PYTHON_EXTENSION_SUFFIX := $(shell $(PYTHON) -c 'from importlib import machinery; print(machinery.EXTENSION_SUFFIXES[0])')
909 ifdef CROSS_COMPILE
910 PYTHON_EXTENSION_SUFFIX := $(subst $(PYTHON_NATIVE),$(shell $(CC) -dumpmachine),$(PYTHON_EXTENSION_SUFFIX))
911 endif
912 LANG_BINDINGS += $(obj-perf)python/perf$(PYTHON_EXTENSION_SUFFIX)
913 else
914 $(warning Missing python setuptools, the python binding won't be built, please install python3-setuptools or equivalent)
915 endif
916 CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
917 $(call detected,CONFIG_LIBPYTHON)
918 ifeq ($(filter -fPIC,$(CFLAGS)),)
919 # Building a shared library requires position independent code.
920 CFLAGS += -fPIC
921 CXXFLAGS += -fPIC
922 endif
923 endif
924 endif
925 endif
926endif
927
928ifneq ($(NO_JEVENTS),1)
929 ifeq ($(wildcard pmu-events/arch/$(SRCARCH)/mapfile.csv),)
930 NO_JEVENTS := 1
931 endif
932endif
933ifneq ($(NO_JEVENTS),1)
934 NO_JEVENTS := 0
935 ifndef PYTHON
936 $(error ERROR: No python interpreter needed for jevents generation. Install python or build with NO_JEVENTS=1.)
937 else
938 # jevents.py uses f-strings present in Python 3.6 released in Dec. 2016.
939 JEVENTS_PYTHON_GOOD := $(shell $(PYTHON) -c 'import sys;print("1" if(sys.version_info.major >= 3 and sys.version_info.minor >= 6) else "0")' 2> /dev/null)
940 ifneq ($(JEVENTS_PYTHON_GOOD), 1)
941 $(error ERROR: Python interpreter needed for jevents generation too old (older than 3.6). Install a newer python or build with NO_JEVENTS=1.)
942 endif
943 endif
944endif
945
946ifdef BUILD_NONDISTRO
947 ifeq ($(feature-libbfd), 1)
948 EXTLIBS += -lbfd -lopcodes
949 else
950 # we are on a system that requires -liberty and (maybe) -lz
951 # to link against -lbfd; test each case individually here
952
953 # call all detections now so we get correct
954 # status in VF output
955 $(call feature_check,libbfd-liberty)
956 $(call feature_check,libbfd-liberty-z)
957
958 ifeq ($(feature-libbfd-liberty), 1)
959 EXTLIBS += -lbfd -lopcodes -liberty
960 FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl
961 FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -ldl
962 else
963 ifeq ($(feature-libbfd-liberty-z), 1)
964 EXTLIBS += -lbfd -lopcodes -liberty -lz
965 FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl
966 FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -lz -ldl
967 endif
968 endif
969 $(call feature_check,disassembler-four-args)
970 $(call feature_check,disassembler-init-styled)
971 endif
972
973 CFLAGS += -DHAVE_LIBBFD_SUPPORT
974 CXXFLAGS += -DHAVE_LIBBFD_SUPPORT
975 ifeq ($(feature-libbfd-buildid), 1)
976 CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
977 else
978 $(warning Old version of libbfd/binutils things like PE executable profiling will not be available)
979 endif
980endif
981
982ifndef NO_LIBLLVM
983 $(call feature_check,llvm-perf)
984 ifeq ($(feature-llvm-perf), 1)
985 CFLAGS += -DHAVE_LIBLLVM_SUPPORT
986 CFLAGS += $(shell $(LLVM_CONFIG) --cflags)
987 CXXFLAGS += -DHAVE_LIBLLVM_SUPPORT
988 CXXFLAGS += $(shell $(LLVM_CONFIG) --cxxflags)
989 LIBLLVM = $(shell $(LLVM_CONFIG) --libs all) $(shell $(LLVM_CONFIG) --system-libs)
990 EXTLIBS += -L$(shell $(LLVM_CONFIG) --libdir) $(LIBLLVM)
991 EXTLIBS += -lstdc++
992 $(call detected,CONFIG_LIBLLVM)
993 else
994 $(warning No libllvm 13+ found, slower source file resolution, please install llvm-devel/llvm-dev)
995 NO_LIBLLVM := 1
996 endif
997endif
998
999ifndef NO_DEMANGLE
1000 $(call feature_check,cxa-demangle)
1001 ifeq ($(feature-cxa-demangle), 1)
1002 EXTLIBS += -lstdc++
1003 CFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT
1004 CXXFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT
1005 $(call detected,CONFIG_CXX_DEMANGLE)
1006 endif
1007 ifdef BUILD_NONDISTRO
1008 ifeq ($(filter -liberty,$(EXTLIBS)),)
1009 $(call feature_check,cplus-demangle)
1010 ifeq ($(feature-cplus-demangle), 1)
1011 EXTLIBS += -liberty
1012 endif
1013 endif
1014 ifneq ($(filter -liberty,$(EXTLIBS)),)
1015 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
1016 CXXFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
1017 endif
1018 endif
1019endif
1020
1021ifndef NO_LZMA
1022 ifeq ($(feature-lzma), 1)
1023 CFLAGS += -DHAVE_LZMA_SUPPORT
1024 EXTLIBS += -llzma
1025 $(call detected,CONFIG_LZMA)
1026 else
1027 $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev)
1028 NO_LZMA := 1
1029 endif
1030endif
1031
1032ifndef NO_LIBZSTD
1033 ifeq ($(feature-libzstd), 1)
1034 CFLAGS += -DHAVE_ZSTD_SUPPORT
1035 CFLAGS += $(LIBZSTD_CFLAGS)
1036 LDFLAGS += $(LIBZSTD_LDFLAGS)
1037 EXTLIBS += -lzstd
1038 $(call detected,CONFIG_ZSTD)
1039 else
1040 $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR)
1041 NO_LIBZSTD := 1
1042 endif
1043endif
1044
1045ifndef NO_BACKTRACE
1046 ifeq ($(feature-backtrace), 1)
1047 CFLAGS += -DHAVE_BACKTRACE_SUPPORT
1048 endif
1049endif
1050
1051ifndef NO_LIBNUMA
1052 ifeq ($(feature-libnuma), 0)
1053 $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev)
1054 NO_LIBNUMA := 1
1055 else
1056 ifeq ($(feature-numa_num_possible_cpus), 0)
1057 $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8)
1058 NO_LIBNUMA := 1
1059 else
1060 CFLAGS += -DHAVE_LIBNUMA_SUPPORT
1061 EXTLIBS += -lnuma
1062 $(call detected,CONFIG_NUMA)
1063 endif
1064 endif
1065endif
1066
1067ifdef HAVE_KVM_STAT_SUPPORT
1068 CFLAGS += -DHAVE_KVM_STAT_SUPPORT
1069endif
1070
1071ifeq ($(feature-disassembler-four-args), 1)
1072 CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
1073endif
1074
1075ifeq ($(feature-disassembler-init-styled), 1)
1076 CFLAGS += -DDISASM_INIT_STYLED
1077endif
1078
1079ifeq (${IS_64_BIT}, 1)
1080 ifndef NO_PERF_READ_VDSO32
1081 $(call feature_check,compile-32)
1082 ifeq ($(feature-compile-32), 1)
1083 CFLAGS += -DHAVE_PERF_READ_VDSO32
1084 else
1085 NO_PERF_READ_VDSO32 := 1
1086 endif
1087 endif
1088 ifneq ($(SRCARCH), x86)
1089 NO_PERF_READ_VDSOX32 := 1
1090 endif
1091 ifndef NO_PERF_READ_VDSOX32
1092 $(call feature_check,compile-x32)
1093 ifeq ($(feature-compile-x32), 1)
1094 CFLAGS += -DHAVE_PERF_READ_VDSOX32
1095 else
1096 NO_PERF_READ_VDSOX32 := 1
1097 endif
1098 endif
1099else
1100 NO_PERF_READ_VDSO32 := 1
1101 NO_PERF_READ_VDSOX32 := 1
1102endif
1103
1104ifndef NO_LIBBABELTRACE
1105 $(call feature_check,libbabeltrace)
1106 ifeq ($(feature-libbabeltrace), 1)
1107 CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
1108 LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
1109 EXTLIBS += -lbabeltrace-ctf
1110 $(call detected,CONFIG_LIBBABELTRACE)
1111 else
1112 $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev)
1113 endif
1114endif
1115
1116ifndef NO_CAPSTONE
1117 $(call feature_check,libcapstone)
1118 ifeq ($(feature-libcapstone), 1)
1119 CFLAGS += -DHAVE_LIBCAPSTONE_SUPPORT $(LIBCAPSTONE_CFLAGS)
1120 LDFLAGS += $(LICAPSTONE_LDFLAGS)
1121 EXTLIBS += -lcapstone
1122 $(call detected,CONFIG_LIBCAPSTONE)
1123 else
1124 msg := $(warning No libcapstone found, disables disasm engine support for 'perf script', please install libcapstone-dev/capstone-devel);
1125 endif
1126endif
1127
1128ifndef NO_AUXTRACE
1129 ifeq ($(SRCARCH),x86)
1130 ifeq ($(feature-get_cpuid), 0)
1131 $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc)
1132 NO_AUXTRACE := 1
1133 endif
1134 endif
1135 ifndef NO_AUXTRACE
1136 $(call detected,CONFIG_AUXTRACE)
1137 CFLAGS += -DHAVE_AUXTRACE_SUPPORT
1138 ifeq ($(feature-reallocarray), 0)
1139 CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
1140 endif
1141 endif
1142endif
1143
1144ifdef EXTRA_TESTS
1145 $(call detected,CONFIG_EXTRA_TESTS)
1146 CFLAGS += -DHAVE_EXTRA_TESTS
1147endif
1148
1149ifndef NO_JVMTI
1150 ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
1151 JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
1152 else
1153 ifneq (,$(wildcard /usr/sbin/alternatives))
1154 JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
1155 endif
1156 endif
1157 ifndef JDIR
1158 $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
1159 NO_JVMTI := 1
1160 endif
1161endif
1162
1163ifndef NO_JVMTI
1164 FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
1165 $(call feature_check,jvmti)
1166 ifeq ($(feature-jvmti), 1)
1167 $(call detected_var,JDIR)
1168 ifndef NO_JVMTI_CMLR
1169 FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
1170 $(call feature_check,jvmti-cmlr)
1171 ifeq ($(feature-jvmti-cmlr), 1)
1172 CFLAGS += -DHAVE_JVMTI_CMLR
1173 endif
1174 endif # NO_JVMTI_CMLR
1175 else
1176 $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
1177 NO_JVMTI := 1
1178 endif
1179endif
1180
1181ifndef NO_LIBPFM4
1182 $(call feature_check,libpfm4)
1183 ifeq ($(feature-libpfm4), 1)
1184 CFLAGS += -DHAVE_LIBPFM
1185 EXTLIBS += -lpfm
1186 ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
1187 $(call detected,CONFIG_LIBPFM4)
1188 else
1189 $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev)
1190 endif
1191endif
1192
1193# libtraceevent is a recommended dependency picked up from the system.
1194ifneq ($(NO_LIBTRACEEVENT),1)
1195 $(call feature_check,libtraceevent)
1196 ifeq ($(feature-libtraceevent), 1)
1197 CFLAGS += -DHAVE_LIBTRACEEVENT
1198 LDFLAGS += $(shell $(PKG_CONFIG) --libs-only-L libtraceevent)
1199 EXTLIBS += $(shell $(PKG_CONFIG) --libs-only-l libtraceevent)
1200 LIBTRACEEVENT_VERSION := $(shell $(PKG_CONFIG) --modversion libtraceevent).0.0
1201 LIBTRACEEVENT_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1202 LIBTRACEEVENT_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1203 LIBTRACEEVENT_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1204 LIBTRACEEVENT_VERSION_CPP := $(shell expr $(LIBTRACEEVENT_VERSION_1) \* 255 \* 255 + $(LIBTRACEEVENT_VERSION_2) \* 255 + $(LIBTRACEEVENT_VERSION_3))
1205 CFLAGS += -DLIBTRACEEVENT_VERSION=$(LIBTRACEEVENT_VERSION_CPP)
1206 $(call detected,CONFIG_LIBTRACEEVENT)
1207 else
1208 $(error ERROR: libtraceevent is missing. Please install libtraceevent-dev/libtraceevent-devel and/or set LIBTRACEEVENT_DIR or build with NO_LIBTRACEEVENT=1)
1209 endif
1210
1211 $(call feature_check,libtracefs)
1212 ifeq ($(feature-libtracefs), 1)
1213 CFLAGS += $(shell $(PKG_CONFIG) --cflags libtracefs)
1214 LDFLAGS += $(shell $(PKG_CONFIG) --libs-only-L libtracefs)
1215 EXTLIBS += $(shell $(PKG_CONFIG) --libs-only-l libtracefs)
1216 LIBTRACEFS_VERSION := $(shell $(PKG_CONFIG) --modversion libtracefs).0.0
1217 LIBTRACEFS_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEFS_VERSION)))
1218 LIBTRACEFS_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEFS_VERSION)))
1219 LIBTRACEFS_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEFS_VERSION)))
1220 LIBTRACEFS_VERSION_CPP := $(shell expr $(LIBTRACEFS_VERSION_1) \* 255 \* 255 + $(LIBTRACEFS_VERSION_2) \* 255 + $(LIBTRACEFS_VERSION_3))
1221 CFLAGS += -DLIBTRACEFS_VERSION=$(LIBTRACEFS_VERSION_CPP)
1222 else
1223 $(warning libtracefs is missing. Please install libtracefs-dev/libtracefs-devel)
1224 endif
1225endif
1226
1227# Among the variables below, these:
1228# perfexecdir
1229# libbpf_include_dir
1230# perf_examples_dir
1231# template_dir
1232# mandir
1233# infodir
1234# htmldir
1235# ETC_PERFCONFIG (but not sysconfdir)
1236# can be specified as a relative path some/where/else;
1237# this is interpreted as relative to $(prefix) and "perf" at
1238# runtime figures out where they are based on the path to the executable.
1239# This can help installing the suite in a relocatable way.
1240
1241# Make the path relative to DESTDIR, not to prefix
1242ifndef DESTDIR
1243prefix ?= $(HOME)
1244endif
1245bindir_relative = bin
1246bindir = $(abspath $(prefix)/$(bindir_relative))
1247includedir_relative = include
1248includedir = $(abspath $(prefix)/$(includedir_relative))
1249mandir = share/man
1250infodir = share/info
1251perfexecdir = libexec/perf-core
1252# FIXME: system's libbpf header directory, where we expect to find bpf/bpf_helpers.h, for instance
1253libbpf_include_dir = /usr/include
1254perf_examples_dir = lib/perf/examples
1255sharedir = $(prefix)/share
1256template_dir = share/perf-core/templates
1257STRACE_GROUPS_DIR = share/perf-core/strace/groups
1258htmldir = share/doc/perf-doc
1259tipdir = share/doc/perf-tip
1260srcdir = $(srctree)/tools/perf
1261ifeq ($(prefix),/usr)
1262sysconfdir = /etc
1263ETC_PERFCONFIG = $(sysconfdir)/perfconfig
1264else
1265sysconfdir = $(prefix)/etc
1266ETC_PERFCONFIG = etc/perfconfig
1267endif
1268ifndef lib
1269ifeq ($(SRCARCH)$(IS_64_BIT), x861)
1270lib = lib64
1271else
1272lib = lib
1273endif
1274endif # lib
1275libdir = $(prefix)/$(lib)
1276
1277# Shell quote (do not use $(call) to accommodate ancient setups);
1278ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
1279STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
1280DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
1281bindir_SQ = $(subst ','\'',$(bindir))
1282includedir_SQ = $(subst ','\'',$(includedir))
1283mandir_SQ = $(subst ','\'',$(mandir))
1284infodir_SQ = $(subst ','\'',$(infodir))
1285perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
1286libbpf_include_dir_SQ = $(subst ','\'',$(libbpf_include_dir))
1287perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
1288template_dir_SQ = $(subst ','\'',$(template_dir))
1289htmldir_SQ = $(subst ','\'',$(htmldir))
1290tipdir_SQ = $(subst ','\'',$(tipdir))
1291prefix_SQ = $(subst ','\'',$(prefix))
1292sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
1293libdir_SQ = $(subst ','\'',$(libdir))
1294srcdir_SQ = $(subst ','\'',$(srcdir))
1295
1296ifneq ($(filter /%,$(firstword $(perfexecdir))),)
1297perfexec_instdir = $(perfexecdir)
1298perf_include_instdir = $(libbpf_include_dir)
1299perf_examples_instdir = $(perf_examples_dir)
1300STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
1301tip_instdir = $(tipdir)
1302else
1303perfexec_instdir = $(prefix)/$(perfexecdir)
1304perf_include_instdir = $(prefix)/$(libbpf_include_dir)
1305perf_examples_instdir = $(prefix)/$(perf_examples_dir)
1306STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
1307tip_instdir = $(prefix)/$(tipdir)
1308endif
1309perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
1310perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
1311perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
1312STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
1313tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
1314
1315export perfexec_instdir_SQ
1316
1317print_var = $(eval $(print_var_code)) $(info $(MSG))
1318define print_var_code
1319 MSG = $(shell printf '...%40s: %s' $(1) $($(1)))
1320endef
1321
1322ifeq ($(feature_display),1)
1323 $(call feature_display_entries)
1324endif
1325
1326ifeq ($(VF),1)
1327 # Display EXTRA features which are detected manualy
1328 # from here with feature_check call and thus cannot
1329 # be partof global state output.
1330 $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),) $(info $(MSG)))
1331 $(call print_var,prefix)
1332 $(call print_var,bindir)
1333 $(call print_var,libdir)
1334 $(call print_var,sysconfdir)
1335 $(call print_var,LIBUNWIND_DIR)
1336 $(call print_var,LIBDW_DIR)
1337 $(call print_var,JDIR)
1338
1339 ifeq ($(dwarf-post-unwind),1)
1340 $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text)) $(info $(MSG))
1341 endif
1342endif
1343
1344$(info )
1345
1346$(call detected_var,bindir_SQ)
1347$(call detected_var,PYTHON_WORD)
1348ifneq ($(OUTPUT),)
1349$(call detected_var,OUTPUT)
1350endif
1351$(call detected_var,htmldir_SQ)
1352$(call detected_var,infodir_SQ)
1353$(call detected_var,mandir_SQ)
1354$(call detected_var,ETC_PERFCONFIG_SQ)
1355$(call detected_var,STRACE_GROUPS_DIR_SQ)
1356$(call detected_var,prefix_SQ)
1357$(call detected_var,perfexecdir_SQ)
1358$(call detected_var,libbpf_include_dir_SQ)
1359$(call detected_var,perf_examples_dir_SQ)
1360$(call detected_var,tipdir_SQ)
1361$(call detected_var,srcdir_SQ)
1362$(call detected_var,LIBDIR)
1363$(call detected_var,GTK_CFLAGS)
1364$(call detected_var,PERL_EMBED_CCOPTS)
1365$(call detected_var,PYTHON_EMBED_CCOPTS)
1366ifneq ($(BISON_FILE_PREFIX_MAP),)
1367$(call detected_var,BISON_FILE_PREFIX_MAP)
1368endif
1369
1370# re-generate FEATURE-DUMP as we may have called feature_check, found out
1371# extra libraries to add to LDFLAGS of some other test and then redo those
1372# tests, see the block about libbfd, disassembler-four-args, for instance.
1373$(shell rm -f $(FEATURE_DUMP_FILENAME))
1374$(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))