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
31NO_PERF_REGS := 1
32
33ifneq ($(NO_SYSCALL_TABLE),1)
34 NO_SYSCALL_TABLE := 1
35
36 ifeq ($(SRCARCH),x86)
37 ifeq (${IS_64_BIT}, 1)
38 NO_SYSCALL_TABLE := 0
39 endif
40 else
41 ifeq ($(SRCARCH),$(filter $(SRCARCH),powerpc arm64 s390 mips loongarch))
42 NO_SYSCALL_TABLE := 0
43 endif
44 endif
45
46 ifneq ($(NO_SYSCALL_TABLE),1)
47 CFLAGS += -DHAVE_SYSCALL_TABLE_SUPPORT
48 endif
49endif
50
51# Additional ARCH settings for ppc
52ifeq ($(SRCARCH),powerpc)
53 NO_PERF_REGS := 0
54 CFLAGS += -I$(OUTPUT)arch/powerpc/include/generated
55 LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
56endif
57
58# Additional ARCH settings for x86
59ifeq ($(SRCARCH),x86)
60 $(call detected,CONFIG_X86)
61 ifeq (${IS_64_BIT}, 1)
62 CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT -I$(OUTPUT)arch/x86/include/generated
63 ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
64 LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma
65 $(call detected,CONFIG_X86_64)
66 else
67 LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
68 endif
69 NO_PERF_REGS := 0
70endif
71
72ifeq ($(SRCARCH),arm)
73 NO_PERF_REGS := 0
74 LIBUNWIND_LIBS = -lunwind -lunwind-arm
75endif
76
77ifeq ($(SRCARCH),arm64)
78 NO_PERF_REGS := 0
79 CFLAGS += -I$(OUTPUT)arch/arm64/include/generated
80 LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
81endif
82
83ifeq ($(SRCARCH),loongarch)
84 NO_PERF_REGS := 0
85 CFLAGS += -I$(OUTPUT)arch/loongarch/include/generated
86 LIBUNWIND_LIBS = -lunwind -lunwind-loongarch64
87endif
88
89ifeq ($(SRCARCH),riscv)
90 NO_PERF_REGS := 0
91endif
92
93ifeq ($(SRCARCH),csky)
94 NO_PERF_REGS := 0
95endif
96
97ifeq ($(ARCH),s390)
98 NO_PERF_REGS := 0
99 CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
100endif
101
102ifeq ($(ARCH),mips)
103 NO_PERF_REGS := 0
104 CFLAGS += -I$(OUTPUT)arch/mips/include/generated
105 LIBUNWIND_LIBS = -lunwind -lunwind-mips
106endif
107
108ifeq ($(NO_PERF_REGS),0)
109 $(call detected,CONFIG_PERF_REGS)
110endif
111
112# So far there's only x86 and arm libdw unwind support merged in perf.
113# Disable it on all other architectures in case libdw unwind
114# support is detected in system. Add supported architectures
115# to the check.
116ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky riscv loongarch))
117 NO_LIBDW_DWARF_UNWIND := 1
118endif
119
120ifeq ($(LIBUNWIND_LIBS),)
121 NO_LIBUNWIND := 1
122endif
123#
124# For linking with debug library, run like:
125#
126# make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
127#
128
129libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
130define libunwind_arch_set_flags_code
131 FEATURE_CHECK_CFLAGS-libunwind-$(1) = -I$(LIBUNWIND_DIR)/include
132 FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
133endef
134
135ifdef LIBUNWIND_DIR
136 LIBUNWIND_CFLAGS = -I$(LIBUNWIND_DIR)/include
137 LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
138 LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64 loongarch
139 $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
140endif
141
142# Set per-feature check compilation flags
143FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
144FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
145FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
146FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
147
148FEATURE_CHECK_LDFLAGS-libunwind-arm += -lunwind -lunwind-arm
149FEATURE_CHECK_LDFLAGS-libunwind-aarch64 += -lunwind -lunwind-aarch64
150FEATURE_CHECK_LDFLAGS-libunwind-x86 += -lunwind -llzma -lunwind-x86
151FEATURE_CHECK_LDFLAGS-libunwind-x86_64 += -lunwind -llzma -lunwind-x86_64
152
153FEATURE_CHECK_LDFLAGS-libcrypto = -lcrypto
154
155ifdef CSINCLUDES
156 LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
157endif
158OPENCSDLIBS := -lopencsd_c_api -lopencsd
159ifeq ($(findstring -static,${LDFLAGS}),-static)
160 OPENCSDLIBS += -lstdc++
161endif
162ifdef CSLIBS
163 LIBOPENCSD_LDFLAGS := -L$(CSLIBS)
164endif
165FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
166FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
167
168ifeq ($(NO_PERF_REGS),0)
169 CFLAGS += -DHAVE_PERF_REGS_SUPPORT
170endif
171
172# for linking with debug library, run like:
173# make DEBUG=1 LIBDW_DIR=/opt/libdw/
174ifdef LIBDW_DIR
175 LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
176 LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
177endif
178DWARFLIBS := -ldw
179ifeq ($(findstring -static,${LDFLAGS}),-static)
180 DWARFLIBS += -lelf -lebl -ldl -lz -llzma -lbz2
181endif
182FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
183FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
184
185# for linking with debug library, run like:
186# make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
187ifdef LIBBABELTRACE_DIR
188 LIBBABELTRACE_CFLAGS := -I$(LIBBABELTRACE_DIR)/include
189 LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
190endif
191FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
192FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
193
194ifdef LIBZSTD_DIR
195 LIBZSTD_CFLAGS := -I$(LIBZSTD_DIR)/lib
196 LIBZSTD_LDFLAGS := -L$(LIBZSTD_DIR)/lib
197endif
198FEATURE_CHECK_CFLAGS-libzstd := $(LIBZSTD_CFLAGS)
199FEATURE_CHECK_LDFLAGS-libzstd := $(LIBZSTD_LDFLAGS)
200
201FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
202# include ARCH specific config
203-include $(src-perf)/arch/$(SRCARCH)/Makefile
204
205ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
206 CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
207endif
208
209include $(srctree)/tools/scripts/utilities.mak
210
211ifeq ($(call get-executable,$(FLEX)),)
212 dummy := $(error Error: $(FLEX) is missing on this system, please install it)
213endif
214
215ifeq ($(call get-executable,$(BISON)),)
216 dummy := $(error Error: $(BISON) is missing on this system, please install it)
217endif
218
219ifneq ($(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 msg := $(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 msg := $(error No libasan found, please install libasan);
446 endif
447 endif
448
449 ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
450 ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
451 msg := $(error No libubsan found, please install libubsan);
452 endif
453 endif
454
455 ifneq ($(filter s% -static%,$(LDFLAGS),),)
456 msg := $(error No static glibc found, please install glibc-static);
457 else
458 msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
459 endif
460 endif
461 else
462 ifndef NO_LIBDW_DWARF_UNWIND
463 ifneq ($(feature-libdw-dwarf-unwind),1)
464 NO_LIBDW_DWARF_UNWIND := 1
465 msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
466 endif
467 endif
468 ifneq ($(feature-dwarf), 1)
469 ifndef NO_DWARF
470 msg := $(warning No libdw.h found or old libdw.h found or elfutils is older than 0.138, disables dwarf support. Please install new elfutils-devel/libdw-dev);
471 NO_DWARF := 1
472 endif
473 else
474 ifneq ($(feature-dwarf_getlocations), 1)
475 msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
476 else
477 CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
478 endif # dwarf_getlocations
479 endif # Dwarf support
480 endif # libelf support
481endif # NO_LIBELF
482
483ifeq ($(feature-libaio), 1)
484 ifndef NO_AIO
485 CFLAGS += -DHAVE_AIO_SUPPORT
486 endif
487endif
488
489ifdef NO_DWARF
490 NO_LIBDW_DWARF_UNWIND := 1
491endif
492
493ifeq ($(feature-scandirat), 1)
494 CFLAGS += -DHAVE_SCANDIRAT_SUPPORT
495endif
496
497ifeq ($(feature-sched_getcpu), 1)
498 CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
499endif
500
501ifeq ($(feature-setns), 1)
502 CFLAGS += -DHAVE_SETNS_SUPPORT
503 $(call detected,CONFIG_SETNS)
504endif
505
506ifdef CORESIGHT
507 $(call feature_check,libopencsd)
508 ifeq ($(feature-libopencsd), 1)
509 CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
510 ifeq ($(feature-reallocarray), 0)
511 CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
512 endif
513 LDFLAGS += $(LIBOPENCSD_LDFLAGS)
514 EXTLIBS += $(OPENCSDLIBS)
515 $(call detected,CONFIG_LIBOPENCSD)
516 ifdef CSTRACE_RAW
517 CFLAGS += -DCS_DEBUG_RAW
518 ifeq (${CSTRACE_RAW}, packed)
519 CFLAGS += -DCS_RAW_PACKED
520 endif
521 endif
522 else
523 dummy := $(error Error: No libopencsd library found or the version is not up-to-date. Please install recent libopencsd to build with CORESIGHT=1)
524 endif
525endif
526
527ifndef NO_ZLIB
528 ifeq ($(feature-zlib), 1)
529 CFLAGS += -DHAVE_ZLIB_SUPPORT
530 EXTLIBS += -lz
531 $(call detected,CONFIG_ZLIB)
532 else
533 NO_ZLIB := 1
534 endif
535endif
536
537ifndef NO_LIBELF
538 CFLAGS += -DHAVE_LIBELF_SUPPORT
539 EXTLIBS += -lelf
540 $(call detected,CONFIG_LIBELF)
541
542 ifeq ($(feature-libelf-getphdrnum), 1)
543 CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
544 endif
545
546 ifeq ($(feature-libelf-gelf_getnote), 1)
547 CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
548 else
549 msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
550 endif
551
552 ifeq ($(feature-libelf-getshdrstrndx), 1)
553 CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
554 endif
555
556 ifndef NO_LIBDEBUGINFOD
557 $(call feature_check,libdebuginfod)
558 ifeq ($(feature-libdebuginfod), 1)
559 CFLAGS += -DHAVE_DEBUGINFOD_SUPPORT
560 EXTLIBS += -ldebuginfod
561 endif
562 endif
563
564 ifndef NO_DWARF
565 ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
566 msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
567 NO_DWARF := 1
568 else
569 CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
570 LDFLAGS += $(LIBDW_LDFLAGS)
571 EXTLIBS += ${DWARFLIBS}
572 $(call detected,CONFIG_DWARF)
573 endif # PERF_HAVE_DWARF_REGS
574 endif # NO_DWARF
575
576 ifndef NO_LIBBPF
577 ifeq ($(feature-bpf), 1)
578 # detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
579 $(call feature_check,libbpf)
580
581 ifdef LIBBPF_DYNAMIC
582 ifeq ($(feature-libbpf), 1)
583 EXTLIBS += -lbpf
584 CFLAGS += -DHAVE_LIBBPF_SUPPORT
585 $(call detected,CONFIG_LIBBPF)
586 $(call detected,CONFIG_LIBBPF_DYNAMIC)
587 else
588 dummy := $(error Error: No libbpf devel library found or older than v1.0, please install/update libbpf-devel);
589 endif
590 else
591 ifeq ($(NO_ZLIB), 1)
592 dummy := $(warning Warning: Statically building libbpf not possible as zlib is missing)
593 NO_LIBBPF := 1
594 else
595 # Libbpf will be built as a static library from tools/lib/bpf.
596 LIBBPF_STATIC := 1
597 $(call detected,CONFIG_LIBBPF)
598 CFLAGS += -DHAVE_LIBBPF_SUPPORT
599 endif
600 endif
601 endif
602 endif # NO_LIBBPF
603endif # NO_LIBELF
604
605ifndef NO_SDT
606 ifneq ($(feature-sdt), 1)
607 msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
608 NO_SDT := 1;
609 else
610 CFLAGS += -DHAVE_SDT_EVENT
611 $(call detected,CONFIG_SDT_EVENT)
612 endif
613endif
614
615ifdef PERF_HAVE_JITDUMP
616 ifndef NO_LIBELF
617 $(call detected,CONFIG_JITDUMP)
618 CFLAGS += -DHAVE_JITDUMP
619 endif
620endif
621
622ifeq ($(SRCARCH),powerpc)
623 ifndef NO_DWARF
624 CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
625 endif
626endif
627
628ifndef NO_LIBUNWIND
629 have_libunwind :=
630
631 $(call feature_check,libunwind-x86)
632 ifeq ($(feature-libunwind-x86), 1)
633 $(call detected,CONFIG_LIBUNWIND_X86)
634 CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
635 LDFLAGS += -lunwind-x86
636 EXTLIBS_LIBUNWIND += -lunwind-x86
637 have_libunwind = 1
638 endif
639
640 $(call feature_check,libunwind-aarch64)
641 ifeq ($(feature-libunwind-aarch64), 1)
642 $(call detected,CONFIG_LIBUNWIND_AARCH64)
643 CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
644 LDFLAGS += -lunwind-aarch64
645 EXTLIBS_LIBUNWIND += -lunwind-aarch64
646 have_libunwind = 1
647 $(call feature_check,libunwind-debug-frame-aarch64)
648 ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
649 msg := $(warning No debug_frame support found in libunwind-aarch64);
650 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
651 endif
652 endif
653
654 ifneq ($(feature-libunwind), 1)
655 msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
656 NO_LOCAL_LIBUNWIND := 1
657 else
658 have_libunwind := 1
659 $(call detected,CONFIG_LOCAL_LIBUNWIND)
660 endif
661
662 ifneq ($(have_libunwind), 1)
663 NO_LIBUNWIND := 1
664 endif
665else
666 NO_LOCAL_LIBUNWIND := 1
667endif
668
669ifndef NO_LIBBPF
670 ifneq ($(feature-bpf), 1)
671 msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
672 NO_LIBBPF := 1
673 endif
674endif
675
676ifndef BUILD_BPF_SKEL
677 # BPF skeletons control a large number of perf features, by default
678 # they are enabled.
679 BUILD_BPF_SKEL := 1
680endif
681
682ifeq ($(BUILD_BPF_SKEL),1)
683 ifeq ($(filter -DHAVE_LIBBPF_SUPPORT, $(CFLAGS)),)
684 dummy := $(warning Warning: Disabled BPF skeletons as libbpf is required)
685 BUILD_BPF_SKEL := 0
686 else ifeq ($(filter -DHAVE_LIBELF_SUPPORT, $(CFLAGS)),)
687 dummy := $(warning Warning: Disabled BPF skeletons as libelf is required by bpftool)
688 BUILD_BPF_SKEL := 0
689 else ifeq ($(filter -DHAVE_ZLIB_SUPPORT, $(CFLAGS)),)
690 dummy := $(warning Warning: Disabled BPF skeletons as zlib is required by bpftool)
691 BUILD_BPF_SKEL := 0
692 else ifeq ($(call get-executable,$(CLANG)),)
693 dummy := $(warning Warning: Disabled BPF skeletons as clang ($(CLANG)) is missing)
694 BUILD_BPF_SKEL := 0
695 else
696 CLANG_VERSION := $(shell $(CLANG) --version | head -1 | sed 's/.*clang version \([[:digit:]]\+.[[:digit:]]\+.[[:digit:]]\+\).*/\1/g')
697 ifeq ($(call version-lt3,$(CLANG_VERSION),12.0.1),1)
698 dummy := $(warning Warning: Disabled BPF skeletons as reliable BTF generation needs at least $(CLANG) version 12.0.1)
699 BUILD_BPF_SKEL := 0
700 endif
701 endif
702 ifeq ($(BUILD_BPF_SKEL),1)
703 $(call feature_check,clang-bpf-co-re)
704 ifeq ($(feature-clang-bpf-co-re), 0)
705 dummy := $(warning Warning: Disabled BPF skeletons as clang is too old)
706 BUILD_BPF_SKEL := 0
707 endif
708 endif
709 ifeq ($(BUILD_BPF_SKEL),1)
710 $(call detected,CONFIG_PERF_BPF_SKEL)
711 CFLAGS += -DHAVE_BPF_SKEL
712 endif
713endif
714
715ifndef GEN_VMLINUX_H
716 VMLINUX_H=$(src-perf)/util/bpf_skel/vmlinux/vmlinux.h
717endif
718
719dwarf-post-unwind := 1
720dwarf-post-unwind-text := BUG
721
722# setup DWARF post unwinder
723ifdef NO_LIBUNWIND
724 ifdef NO_LIBDW_DWARF_UNWIND
725 msg := $(warning Disabling post unwind, no support found.);
726 dwarf-post-unwind := 0
727 else
728 dwarf-post-unwind-text := libdw
729 $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
730 endif
731else
732 dwarf-post-unwind-text := libunwind
733 $(call detected,CONFIG_LIBUNWIND)
734 # Enable libunwind support by default.
735 ifndef NO_LIBDW_DWARF_UNWIND
736 NO_LIBDW_DWARF_UNWIND := 1
737 endif
738endif
739
740ifeq ($(dwarf-post-unwind),1)
741 CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
742 $(call detected,CONFIG_DWARF_UNWIND)
743else
744 NO_DWARF_UNWIND := 1
745endif
746
747ifndef NO_LOCAL_LIBUNWIND
748 ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
749 $(call feature_check,libunwind-debug-frame)
750 ifneq ($(feature-libunwind-debug-frame), 1)
751 msg := $(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 += $(LIBUNWIND_LIBS)
760endif
761ifeq ($(findstring -static,${LDFLAGS}),-static)
762 # gcc -static links libgcc_eh which contans piece of libunwind
763 LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
764endif
765
766ifndef NO_LIBUNWIND
767 CFLAGS += -DHAVE_LIBUNWIND_SUPPORT
768 CFLAGS += $(LIBUNWIND_CFLAGS)
769 LDFLAGS += $(LIBUNWIND_LDFLAGS)
770 EXTLIBS += $(EXTLIBS_LIBUNWIND)
771endif
772
773ifneq ($(NO_LIBTRACEEVENT),1)
774 ifeq ($(NO_SYSCALL_TABLE),0)
775 $(call detected,CONFIG_TRACE)
776 else
777 ifndef NO_LIBAUDIT
778 $(call feature_check,libaudit)
779 ifneq ($(feature-libaudit), 1)
780 msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
781 NO_LIBAUDIT := 1
782 else
783 CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
784 EXTLIBS += -laudit
785 $(call detected,CONFIG_TRACE)
786 endif
787 endif
788 endif
789endif
790
791ifndef NO_LIBCRYPTO
792 ifneq ($(feature-libcrypto), 1)
793 msg := $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev);
794 NO_LIBCRYPTO := 1
795 else
796 CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
797 EXTLIBS += -lcrypto
798 $(call detected,CONFIG_CRYPTO)
799 endif
800endif
801
802ifndef NO_SLANG
803 ifneq ($(feature-libslang), 1)
804 ifneq ($(feature-libslang-include-subdir), 1)
805 msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
806 NO_SLANG := 1
807 else
808 CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
809 endif
810 endif
811 ifndef NO_SLANG
812 # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
813 CFLAGS += -DHAVE_SLANG_SUPPORT
814 EXTLIBS += -lslang
815 $(call detected,CONFIG_SLANG)
816 endif
817endif
818
819ifdef GTK2
820 FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
821 $(call feature_check,gtk2)
822 ifneq ($(feature-gtk2), 1)
823 msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
824 NO_GTK2 := 1
825 else
826 $(call feature_check,gtk2-infobar)
827 ifeq ($(feature-gtk2-infobar), 1)
828 GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
829 endif
830 CFLAGS += -DHAVE_GTK2_SUPPORT
831 GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
832 GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
833 EXTLIBS += -ldl
834 endif
835endif
836
837ifdef NO_LIBPERL
838 CFLAGS += -DNO_LIBPERL
839else
840 PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
841 PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
842 PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
843 PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
844 PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
845 PERL_EMBED_CCOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
846 PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
847 FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
848
849 ifneq ($(feature-libperl), 1)
850 CFLAGS += -DNO_LIBPERL
851 NO_LIBPERL := 1
852 msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
853 else
854 LDFLAGS += $(PERL_EMBED_LDFLAGS)
855 EXTLIBS += $(PERL_EMBED_LIBADD)
856 CFLAGS += -DHAVE_LIBPERL_SUPPORT
857 ifeq ($(CC_NO_CLANG), 0)
858 CFLAGS += -Wno-compound-token-split-by-macro
859 endif
860 $(call detected,CONFIG_LIBPERL)
861 endif
862endif
863
864ifeq ($(feature-timerfd), 1)
865 CFLAGS += -DHAVE_TIMERFD_SUPPORT
866else
867 msg := $(warning No timerfd support. Disables 'perf kvm stat live');
868endif
869
870disable-python = $(eval $(disable-python_code))
871define disable-python_code
872 CFLAGS += -DNO_LIBPYTHON
873 $(warning $1)
874 NO_LIBPYTHON := 1
875endef
876
877PYTHON_EXTENSION_SUFFIX := '.so'
878ifdef NO_LIBPYTHON
879 $(call disable-python,Python support disabled by user)
880else
881
882 ifndef PYTHON
883 $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
884 else
885 PYTHON_WORD := $(call shell-wordify,$(PYTHON))
886
887 ifndef PYTHON_CONFIG
888 $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
889 else
890
891 ifneq ($(feature-libpython), 1)
892 $(call disable-python,No 'Python.h' was found: disables Python support - please install python-devel/python-dev)
893 else
894 LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
895 EXTLIBS += $(PYTHON_EMBED_LIBADD)
896 PYTHON_SETUPTOOLS_INSTALLED := $(shell $(PYTHON) -c 'import setuptools;' 2> /dev/null && echo "yes" || echo "no")
897 ifeq ($(PYTHON_SETUPTOOLS_INSTALLED), yes)
898 PYTHON_EXTENSION_SUFFIX := $(shell $(PYTHON) -c 'from importlib import machinery; print(machinery.EXTENSION_SUFFIXES[0])')
899 LANG_BINDINGS += $(obj-perf)python/perf$(PYTHON_EXTENSION_SUFFIX)
900 else
901 msg := $(warning Missing python setuptools, the python binding won't be built, please install python3-setuptools or equivalent);
902 endif
903 CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
904 $(call detected,CONFIG_LIBPYTHON)
905 endif
906 endif
907 endif
908endif
909
910ifneq ($(NO_JEVENTS),1)
911 ifeq ($(wildcard pmu-events/arch/$(SRCARCH)/mapfile.csv),)
912 NO_JEVENTS := 1
913 endif
914endif
915ifneq ($(NO_JEVENTS),1)
916 NO_JEVENTS := 0
917 ifndef PYTHON
918 $(error ERROR: No python interpreter needed for jevents generation. Install python or build with NO_JEVENTS=1.)
919 else
920 # jevents.py uses f-strings present in Python 3.6 released in Dec. 2016.
921 JEVENTS_PYTHON_GOOD := $(shell $(PYTHON) -c 'import sys;print("1" if(sys.version_info.major >= 3 and sys.version_info.minor >= 6) else "0")' 2> /dev/null)
922 ifneq ($(JEVENTS_PYTHON_GOOD), 1)
923 $(error ERROR: Python interpreter needed for jevents generation too old (older than 3.6). Install a newer python or build with NO_JEVENTS=1.)
924 endif
925 endif
926endif
927
928ifdef BUILD_NONDISTRO
929 ifeq ($(feature-libbfd), 1)
930 EXTLIBS += -lbfd -lopcodes
931 else
932 # we are on a system that requires -liberty and (maybe) -lz
933 # to link against -lbfd; test each case individually here
934
935 # call all detections now so we get correct
936 # status in VF output
937 $(call feature_check,libbfd-liberty)
938 $(call feature_check,libbfd-liberty-z)
939
940 ifeq ($(feature-libbfd-liberty), 1)
941 EXTLIBS += -lbfd -lopcodes -liberty
942 FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl
943 FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -ldl
944 else
945 ifeq ($(feature-libbfd-liberty-z), 1)
946 EXTLIBS += -lbfd -lopcodes -liberty -lz
947 FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl
948 FEATURE_CHECK_LDFLAGS-disassembler-init-styled += -liberty -lz -ldl
949 endif
950 endif
951 $(call feature_check,disassembler-four-args)
952 $(call feature_check,disassembler-init-styled)
953 endif
954
955 CFLAGS += -DHAVE_LIBBFD_SUPPORT
956 CXXFLAGS += -DHAVE_LIBBFD_SUPPORT
957 ifeq ($(feature-libbfd-buildid), 1)
958 CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
959 else
960 msg := $(warning Old version of libbfd/binutils things like PE executable profiling will not be available);
961 endif
962endif
963
964ifndef NO_DEMANGLE
965 $(call feature_check,cxa-demangle)
966 ifeq ($(feature-cxa-demangle), 1)
967 EXTLIBS += -lstdc++
968 CFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT
969 CXXFLAGS += -DHAVE_CXA_DEMANGLE_SUPPORT
970 $(call detected,CONFIG_CXX_DEMANGLE)
971 endif
972 ifdef BUILD_NONDISTRO
973 ifeq ($(filter -liberty,$(EXTLIBS)),)
974 $(call feature_check,cplus-demangle)
975 ifeq ($(feature-cplus-demangle), 1)
976 EXTLIBS += -liberty
977 endif
978 endif
979 ifneq ($(filter -liberty,$(EXTLIBS)),)
980 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
981 CXXFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
982 endif
983 endif
984endif
985
986ifndef NO_LZMA
987 ifeq ($(feature-lzma), 1)
988 CFLAGS += -DHAVE_LZMA_SUPPORT
989 EXTLIBS += -llzma
990 $(call detected,CONFIG_LZMA)
991 else
992 msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
993 NO_LZMA := 1
994 endif
995endif
996
997ifndef NO_LIBZSTD
998 ifeq ($(feature-libzstd), 1)
999 CFLAGS += -DHAVE_ZSTD_SUPPORT
1000 CFLAGS += $(LIBZSTD_CFLAGS)
1001 LDFLAGS += $(LIBZSTD_LDFLAGS)
1002 EXTLIBS += -lzstd
1003 $(call detected,CONFIG_ZSTD)
1004 else
1005 msg := $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR);
1006 NO_LIBZSTD := 1
1007 endif
1008endif
1009
1010ifndef NO_LIBCAP
1011 ifeq ($(feature-libcap), 1)
1012 CFLAGS += -DHAVE_LIBCAP_SUPPORT
1013 EXTLIBS += -lcap
1014 $(call detected,CONFIG_LIBCAP)
1015 else
1016 msg := $(warning No libcap found, disables capability support, please install libcap-devel/libcap-dev);
1017 NO_LIBCAP := 1
1018 endif
1019endif
1020
1021ifndef NO_BACKTRACE
1022 ifeq ($(feature-backtrace), 1)
1023 CFLAGS += -DHAVE_BACKTRACE_SUPPORT
1024 endif
1025endif
1026
1027ifndef NO_LIBNUMA
1028 ifeq ($(feature-libnuma), 0)
1029 msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
1030 NO_LIBNUMA := 1
1031 else
1032 ifeq ($(feature-numa_num_possible_cpus), 0)
1033 msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
1034 NO_LIBNUMA := 1
1035 else
1036 CFLAGS += -DHAVE_LIBNUMA_SUPPORT
1037 EXTLIBS += -lnuma
1038 $(call detected,CONFIG_NUMA)
1039 endif
1040 endif
1041endif
1042
1043ifdef HAVE_KVM_STAT_SUPPORT
1044 CFLAGS += -DHAVE_KVM_STAT_SUPPORT
1045endif
1046
1047ifeq ($(feature-disassembler-four-args), 1)
1048 CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
1049endif
1050
1051ifeq ($(feature-disassembler-init-styled), 1)
1052 CFLAGS += -DDISASM_INIT_STYLED
1053endif
1054
1055ifeq (${IS_64_BIT}, 1)
1056 ifndef NO_PERF_READ_VDSO32
1057 $(call feature_check,compile-32)
1058 ifeq ($(feature-compile-32), 1)
1059 CFLAGS += -DHAVE_PERF_READ_VDSO32
1060 else
1061 NO_PERF_READ_VDSO32 := 1
1062 endif
1063 endif
1064 ifneq ($(SRCARCH), x86)
1065 NO_PERF_READ_VDSOX32 := 1
1066 endif
1067 ifndef NO_PERF_READ_VDSOX32
1068 $(call feature_check,compile-x32)
1069 ifeq ($(feature-compile-x32), 1)
1070 CFLAGS += -DHAVE_PERF_READ_VDSOX32
1071 else
1072 NO_PERF_READ_VDSOX32 := 1
1073 endif
1074 endif
1075else
1076 NO_PERF_READ_VDSO32 := 1
1077 NO_PERF_READ_VDSOX32 := 1
1078endif
1079
1080ifndef NO_LIBBABELTRACE
1081 $(call feature_check,libbabeltrace)
1082 ifeq ($(feature-libbabeltrace), 1)
1083 CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
1084 LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
1085 EXTLIBS += -lbabeltrace-ctf
1086 $(call detected,CONFIG_LIBBABELTRACE)
1087 else
1088 msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
1089 endif
1090endif
1091
1092ifndef NO_AUXTRACE
1093 ifeq ($(SRCARCH),x86)
1094 ifeq ($(feature-get_cpuid), 0)
1095 msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
1096 NO_AUXTRACE := 1
1097 endif
1098 endif
1099 ifndef NO_AUXTRACE
1100 $(call detected,CONFIG_AUXTRACE)
1101 CFLAGS += -DHAVE_AUXTRACE_SUPPORT
1102 ifeq ($(feature-reallocarray), 0)
1103 CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
1104 endif
1105 endif
1106endif
1107
1108ifdef EXTRA_TESTS
1109 $(call detected,CONFIG_EXTRA_TESTS)
1110 CFLAGS += -DHAVE_EXTRA_TESTS
1111endif
1112
1113ifndef NO_JVMTI
1114 ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
1115 JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
1116 else
1117 ifneq (,$(wildcard /usr/sbin/alternatives))
1118 JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
1119 endif
1120 endif
1121 ifndef JDIR
1122 $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
1123 NO_JVMTI := 1
1124 endif
1125endif
1126
1127ifndef NO_JVMTI
1128 FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
1129 $(call feature_check,jvmti)
1130 ifeq ($(feature-jvmti), 1)
1131 $(call detected_var,JDIR)
1132 ifndef NO_JVMTI_CMLR
1133 FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
1134 $(call feature_check,jvmti-cmlr)
1135 ifeq ($(feature-jvmti-cmlr), 1)
1136 CFLAGS += -DHAVE_JVMTI_CMLR
1137 endif
1138 endif # NO_JVMTI_CMLR
1139 else
1140 $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
1141 NO_JVMTI := 1
1142 endif
1143endif
1144
1145ifndef NO_LIBPFM4
1146 $(call feature_check,libpfm4)
1147 ifeq ($(feature-libpfm4), 1)
1148 CFLAGS += -DHAVE_LIBPFM
1149 EXTLIBS += -lpfm
1150 ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
1151 $(call detected,CONFIG_LIBPFM4)
1152 else
1153 msg := $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev);
1154 endif
1155endif
1156
1157# libtraceevent is a recommended dependency picked up from the system.
1158ifneq ($(NO_LIBTRACEEVENT),1)
1159 $(call feature_check,libtraceevent)
1160 ifeq ($(feature-libtraceevent), 1)
1161 CFLAGS += -DHAVE_LIBTRACEEVENT
1162 EXTLIBS += -ltraceevent
1163 LIBTRACEEVENT_VERSION := $(shell $(PKG_CONFIG) --modversion libtraceevent)
1164 LIBTRACEEVENT_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1165 LIBTRACEEVENT_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1166 LIBTRACEEVENT_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1167 LIBTRACEEVENT_VERSION_CPP := $(shell expr $(LIBTRACEEVENT_VERSION_1) \* 255 \* 255 + $(LIBTRACEEVENT_VERSION_2) \* 255 + $(LIBTRACEEVENT_VERSION_3))
1168 CFLAGS += -DLIBTRACEEVENT_VERSION=$(LIBTRACEEVENT_VERSION_CPP)
1169 $(call detected,CONFIG_LIBTRACEEVENT)
1170 else
1171 dummy := $(error ERROR: libtraceevent is missing. Please install libtraceevent-dev/libtraceevent-devel or build with NO_LIBTRACEEVENT=1)
1172 endif
1173
1174 $(call feature_check,libtracefs)
1175 ifeq ($(feature-libtracefs), 1)
1176 EXTLIBS += -ltracefs
1177 LIBTRACEFS_VERSION := $(shell $(PKG_CONFIG) --modversion libtracefs)
1178 LIBTRACEFS_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEFS_VERSION)))
1179 LIBTRACEFS_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEFS_VERSION)))
1180 LIBTRACEFS_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEFS_VERSION)))
1181 LIBTRACEFS_VERSION_CPP := $(shell expr $(LIBTRACEFS_VERSION_1) \* 255 \* 255 + $(LIBTRACEFS_VERSION_2) \* 255 + $(LIBTRACEFS_VERSION_3))
1182 CFLAGS += -DLIBTRACEFS_VERSION=$(LIBTRACEFS_VERSION_CPP)
1183 endif
1184endif
1185
1186# Among the variables below, these:
1187# perfexecdir
1188# libbpf_include_dir
1189# perf_examples_dir
1190# template_dir
1191# mandir
1192# infodir
1193# htmldir
1194# ETC_PERFCONFIG (but not sysconfdir)
1195# can be specified as a relative path some/where/else;
1196# this is interpreted as relative to $(prefix) and "perf" at
1197# runtime figures out where they are based on the path to the executable.
1198# This can help installing the suite in a relocatable way.
1199
1200# Make the path relative to DESTDIR, not to prefix
1201ifndef DESTDIR
1202prefix ?= $(HOME)
1203endif
1204bindir_relative = bin
1205bindir = $(abspath $(prefix)/$(bindir_relative))
1206includedir_relative = include
1207includedir = $(abspath $(prefix)/$(includedir_relative))
1208mandir = share/man
1209infodir = share/info
1210perfexecdir = libexec/perf-core
1211# FIXME: system's libbpf header directory, where we expect to find bpf/bpf_helpers.h, for instance
1212libbpf_include_dir = /usr/include
1213perf_examples_dir = lib/perf/examples
1214sharedir = $(prefix)/share
1215template_dir = share/perf-core/templates
1216STRACE_GROUPS_DIR = share/perf-core/strace/groups
1217htmldir = share/doc/perf-doc
1218tipdir = share/doc/perf-tip
1219srcdir = $(srctree)/tools/perf
1220ifeq ($(prefix),/usr)
1221sysconfdir = /etc
1222ETC_PERFCONFIG = $(sysconfdir)/perfconfig
1223else
1224sysconfdir = $(prefix)/etc
1225ETC_PERFCONFIG = etc/perfconfig
1226endif
1227ifndef lib
1228ifeq ($(SRCARCH)$(IS_64_BIT), x861)
1229lib = lib64
1230else
1231lib = lib
1232endif
1233endif # lib
1234libdir = $(prefix)/$(lib)
1235
1236# Shell quote (do not use $(call) to accommodate ancient setups);
1237ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
1238STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
1239DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
1240bindir_SQ = $(subst ','\'',$(bindir))
1241includedir_SQ = $(subst ','\'',$(includedir))
1242mandir_SQ = $(subst ','\'',$(mandir))
1243infodir_SQ = $(subst ','\'',$(infodir))
1244perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
1245libbpf_include_dir_SQ = $(subst ','\'',$(libbpf_include_dir))
1246perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
1247template_dir_SQ = $(subst ','\'',$(template_dir))
1248htmldir_SQ = $(subst ','\'',$(htmldir))
1249tipdir_SQ = $(subst ','\'',$(tipdir))
1250prefix_SQ = $(subst ','\'',$(prefix))
1251sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
1252libdir_SQ = $(subst ','\'',$(libdir))
1253srcdir_SQ = $(subst ','\'',$(srcdir))
1254
1255ifneq ($(filter /%,$(firstword $(perfexecdir))),)
1256perfexec_instdir = $(perfexecdir)
1257perf_include_instdir = $(libbpf_include_dir)
1258perf_examples_instdir = $(perf_examples_dir)
1259STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
1260tip_instdir = $(tipdir)
1261else
1262perfexec_instdir = $(prefix)/$(perfexecdir)
1263perf_include_instdir = $(prefix)/$(libbpf_include_dir)
1264perf_examples_instdir = $(prefix)/$(perf_examples_dir)
1265STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
1266tip_instdir = $(prefix)/$(tipdir)
1267endif
1268perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
1269perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
1270perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
1271STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
1272tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
1273
1274export perfexec_instdir_SQ
1275
1276print_var = $(eval $(print_var_code)) $(info $(MSG))
1277define print_var_code
1278 MSG = $(shell printf '...%40s: %s' $(1) $($(1)))
1279endef
1280
1281ifeq ($(feature_display),1)
1282 $(call feature_display_entries)
1283endif
1284
1285ifeq ($(VF),1)
1286 # Display EXTRA features which are detected manualy
1287 # from here with feature_check call and thus cannot
1288 # be partof global state output.
1289 $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),) $(info $(MSG)))
1290 $(call print_var,prefix)
1291 $(call print_var,bindir)
1292 $(call print_var,libdir)
1293 $(call print_var,sysconfdir)
1294 $(call print_var,LIBUNWIND_DIR)
1295 $(call print_var,LIBDW_DIR)
1296 $(call print_var,JDIR)
1297
1298 ifeq ($(dwarf-post-unwind),1)
1299 $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text)) $(info $(MSG))
1300 endif
1301endif
1302
1303$(info )
1304
1305$(call detected_var,bindir_SQ)
1306$(call detected_var,PYTHON_WORD)
1307ifneq ($(OUTPUT),)
1308$(call detected_var,OUTPUT)
1309endif
1310$(call detected_var,htmldir_SQ)
1311$(call detected_var,infodir_SQ)
1312$(call detected_var,mandir_SQ)
1313$(call detected_var,ETC_PERFCONFIG_SQ)
1314$(call detected_var,STRACE_GROUPS_DIR_SQ)
1315$(call detected_var,prefix_SQ)
1316$(call detected_var,perfexecdir_SQ)
1317$(call detected_var,libbpf_include_dir_SQ)
1318$(call detected_var,perf_examples_dir_SQ)
1319$(call detected_var,tipdir_SQ)
1320$(call detected_var,srcdir_SQ)
1321$(call detected_var,LIBDIR)
1322$(call detected_var,GTK_CFLAGS)
1323$(call detected_var,PERL_EMBED_CCOPTS)
1324$(call detected_var,PYTHON_EMBED_CCOPTS)
1325ifneq ($(BISON_FILE_PREFIX_MAP),)
1326$(call detected_var,BISON_FILE_PREFIX_MAP)
1327endif
1328
1329# re-generate FEATURE-DUMP as we may have called feature_check, found out
1330# extra libraries to add to LDFLAGS of some other test and then redo those
1331# tests, see the block about libbfd, disassembler-four-args, for instance.
1332$(shell rm -f $(FEATURE_DUMP_FILENAME))
1333$(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))