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 $(SRCARCH),powerpc arm64 s390 mips))
42 NO_SYSCALL_TABLE := 0
43 endif
44 endif
45
46 ifneq ($(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 ($(SRCARCH),riscv)
84 NO_PERF_REGS := 0
85endif
86
87ifeq ($(SRCARCH),csky)
88 NO_PERF_REGS := 0
89endif
90
91ifeq ($(ARCH),s390)
92 NO_PERF_REGS := 0
93 CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
94endif
95
96ifeq ($(ARCH),mips)
97 NO_PERF_REGS := 0
98 CFLAGS += -I$(OUTPUT)arch/mips/include/generated
99 LIBUNWIND_LIBS = -lunwind -lunwind-mips
100endif
101
102ifeq ($(NO_PERF_REGS),0)
103 $(call detected,CONFIG_PERF_REGS)
104endif
105
106# So far there's only x86 and arm libdw unwind support merged in perf.
107# Disable it on all other architectures in case libdw unwind
108# support is detected in system. Add supported architectures
109# to the check.
110ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky riscv))
111 NO_LIBDW_DWARF_UNWIND := 1
112endif
113
114ifeq ($(LIBUNWIND_LIBS),)
115 NO_LIBUNWIND := 1
116endif
117#
118# For linking with debug library, run like:
119#
120# make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
121#
122
123libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
124define libunwind_arch_set_flags_code
125 FEATURE_CHECK_CFLAGS-libunwind-$(1) = -I$(LIBUNWIND_DIR)/include
126 FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
127endef
128
129ifdef LIBUNWIND_DIR
130 LIBUNWIND_CFLAGS = -I$(LIBUNWIND_DIR)/include
131 LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
132 LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64
133 $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
134endif
135
136# Set per-feature check compilation flags
137FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
138FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
139FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
140FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
141
142FEATURE_CHECK_LDFLAGS-libunwind-arm += -lunwind -lunwind-arm
143FEATURE_CHECK_LDFLAGS-libunwind-aarch64 += -lunwind -lunwind-aarch64
144FEATURE_CHECK_LDFLAGS-libunwind-x86 += -lunwind -llzma -lunwind-x86
145FEATURE_CHECK_LDFLAGS-libunwind-x86_64 += -lunwind -llzma -lunwind-x86_64
146
147FEATURE_CHECK_LDFLAGS-libcrypto = -lcrypto
148
149ifdef CSINCLUDES
150 LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
151endif
152OPENCSDLIBS := -lopencsd_c_api
153ifeq ($(findstring -static,${LDFLAGS}),-static)
154 OPENCSDLIBS += -lopencsd -lstdc++
155endif
156ifdef CSLIBS
157 LIBOPENCSD_LDFLAGS := -L$(CSLIBS)
158endif
159FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
160FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
161
162ifeq ($(NO_PERF_REGS),0)
163 CFLAGS += -DHAVE_PERF_REGS_SUPPORT
164endif
165
166# for linking with debug library, run like:
167# make DEBUG=1 LIBDW_DIR=/opt/libdw/
168ifdef LIBDW_DIR
169 LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
170 LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
171endif
172DWARFLIBS := -ldw
173ifeq ($(findstring -static,${LDFLAGS}),-static)
174 DWARFLIBS += -lelf -lebl -ldl -lz -llzma -lbz2
175endif
176FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
177FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
178
179# for linking with debug library, run like:
180# make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
181ifdef LIBBABELTRACE_DIR
182 LIBBABELTRACE_CFLAGS := -I$(LIBBABELTRACE_DIR)/include
183 LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
184endif
185FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
186FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
187
188ifdef LIBZSTD_DIR
189 LIBZSTD_CFLAGS := -I$(LIBZSTD_DIR)/lib
190 LIBZSTD_LDFLAGS := -L$(LIBZSTD_DIR)/lib
191endif
192FEATURE_CHECK_CFLAGS-libzstd := $(LIBZSTD_CFLAGS)
193FEATURE_CHECK_LDFLAGS-libzstd := $(LIBZSTD_LDFLAGS)
194
195FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
196# include ARCH specific config
197-include $(src-perf)/arch/$(SRCARCH)/Makefile
198
199ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
200 CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
201endif
202
203include $(srctree)/tools/scripts/utilities.mak
204
205ifeq ($(call get-executable,$(FLEX)),)
206 dummy := $(error Error: $(FLEX) is missing on this system, please install it)
207endif
208
209ifeq ($(call get-executable,$(BISON)),)
210 dummy := $(error Error: $(BISON) is missing on this system, please install it)
211endif
212
213ifneq ($(OUTPUT),)
214 ifeq ($(shell expr $(shell $(BISON) --version | grep bison | sed -e 's/.\+ \([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/\1\2\3/g') \>\= 371), 1)
215 BISON_FILE_PREFIX_MAP := --file-prefix-map=$(OUTPUT)=
216 endif
217endif
218
219# Treat warnings as errors unless directed not to
220ifneq ($(WERROR),0)
221 CORE_CFLAGS += -Werror
222 CXXFLAGS += -Werror
223 HOSTCFLAGS += -Werror
224endif
225
226ifndef DEBUG
227 DEBUG := 0
228endif
229
230ifeq ($(DEBUG),0)
231ifeq ($(CC_NO_CLANG), 0)
232 CORE_CFLAGS += -O3
233else
234 CORE_CFLAGS += -O6
235endif
236endif
237
238ifdef PARSER_DEBUG
239 PARSER_DEBUG_BISON := -t
240 PARSER_DEBUG_FLEX := -d
241 CFLAGS += -DPARSER_DEBUG
242 $(call detected_var,PARSER_DEBUG_BISON)
243 $(call detected_var,PARSER_DEBUG_FLEX)
244endif
245
246# Try different combinations to accommodate systems that only have
247# python[2][3]-config in weird combinations in the following order of
248# priority from lowest to highest:
249# * python2-config as per pep-0394.
250# * python-config
251# * python3-config
252# * $(PYTHON)-config (If PYTHON is user supplied but PYTHON_CONFIG isn't)
253#
254PYTHON_AUTO := python-config
255PYTHON_AUTO := $(if $(call get-executable,python2-config),python2-config,$(PYTHON_AUTO))
256PYTHON_AUTO := $(if $(call get-executable,python-config),python-config,$(PYTHON_AUTO))
257PYTHON_AUTO := $(if $(call get-executable,python3-config),python3-config,$(PYTHON_AUTO))
258
259# If PYTHON is defined but PYTHON_CONFIG isn't, then take $(PYTHON)-config as if it was the user
260# supplied value for PYTHON_CONFIG. Because it's "user supplied", error out if it doesn't exist.
261ifdef PYTHON
262 ifndef PYTHON_CONFIG
263 PYTHON_CONFIG_AUTO := $(call get-executable,$(PYTHON)-config)
264 PYTHON_CONFIG := $(if $(PYTHON_CONFIG_AUTO),$(PYTHON_CONFIG_AUTO),\
265 $(call $(error $(PYTHON)-config not found)))
266 endif
267endif
268
269# Select either auto detected python and python-config or use user supplied values if they are
270# defined. get-executable-or-default fails with an error if the first argument is supplied but
271# doesn't exist.
272override PYTHON_CONFIG := $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON_AUTO))
273override PYTHON := $(call get-executable-or-default,PYTHON,$(subst -config,,$(PYTHON_CONFIG)))
274
275grep-libs = $(filter -l%,$(1))
276strip-libs = $(filter-out -l%,$(1))
277
278PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
279
280# Python 3.8 changed the output of `python-config --ldflags` to not include the
281# '-lpythonX.Y' flag unless '--embed' is also passed. The feature check for
282# libpython fails if that flag is not included in LDFLAGS
283ifeq ($(shell $(PYTHON_CONFIG_SQ) --ldflags --embed 2>&1 1>/dev/null; echo $$?), 0)
284 PYTHON_CONFIG_LDFLAGS := --ldflags --embed
285else
286 PYTHON_CONFIG_LDFLAGS := --ldflags
287endif
288
289ifdef PYTHON_CONFIG
290 PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) $(PYTHON_CONFIG_LDFLAGS) 2>/dev/null)
291 PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
292 PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
293 PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null)
294 FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
295 ifeq ($(CC_NO_CLANG), 0)
296 PYTHON_EMBED_CCOPTS := $(filter-out -ffat-lto-objects, $(PYTHON_EMBED_CCOPTS))
297 endif
298endif
299
300FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
301FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
302
303FEATURE_CHECK_LDFLAGS-libaio = -lrt
304
305CORE_CFLAGS += -fno-omit-frame-pointer
306CORE_CFLAGS += -ggdb3
307CORE_CFLAGS += -funwind-tables
308CORE_CFLAGS += -Wall
309CORE_CFLAGS += -Wextra
310CORE_CFLAGS += -std=gnu99
311
312CXXFLAGS += -std=gnu++14 -fno-exceptions -fno-rtti
313CXXFLAGS += -Wall
314CXXFLAGS += -fno-omit-frame-pointer
315CXXFLAGS += -ggdb3
316CXXFLAGS += -funwind-tables
317CXXFLAGS += -Wno-strict-aliasing
318
319HOSTCFLAGS += -Wall
320HOSTCFLAGS += -Wextra
321
322# Enforce a non-executable stack, as we may regress (again) in the future by
323# adding assembler files missing the .GNU-stack linker note.
324LDFLAGS += -Wl,-z,noexecstack
325
326EXTLIBS = -lpthread -lrt -lm -ldl
327
328ifneq ($(TCMALLOC),)
329 CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free
330 EXTLIBS += -ltcmalloc
331endif
332
333ifeq ($(FEATURES_DUMP),)
334# We will display at the end of this Makefile.config, using $(call feature_display_entries),
335# as we may retry some feature detection here.
336 FEATURE_DISPLAY_DEFERRED := 1
337include $(srctree)/tools/build/Makefile.feature
338else
339include $(FEATURES_DUMP)
340endif
341
342ifeq ($(feature-stackprotector-all), 1)
343 CORE_CFLAGS += -fstack-protector-all
344endif
345
346ifeq ($(DEBUG),0)
347 ifeq ($(feature-fortify-source), 1)
348 CORE_CFLAGS += -U_FORTIFY_SOURCE -D_FORTIFY_SOURCE=2
349 endif
350endif
351
352INC_FLAGS += -I$(srctree)/tools/lib/perf/include
353INC_FLAGS += -I$(src-perf)/util/include
354INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
355INC_FLAGS += -I$(srctree)/tools/include/
356INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
357INC_FLAGS += -I$(srctree)/tools/include/uapi
358INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
359INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
360
361# $(obj-perf) for generated common-cmds.h
362# $(obj-perf)/util for generated bison/flex headers
363ifneq ($(OUTPUT),)
364INC_FLAGS += -I$(obj-perf)/util
365INC_FLAGS += -I$(obj-perf)
366endif
367
368INC_FLAGS += -I$(src-perf)/util
369INC_FLAGS += -I$(src-perf)
370INC_FLAGS += -I$(srctree)/tools/lib/
371
372CORE_CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
373
374CFLAGS += $(CORE_CFLAGS) $(INC_FLAGS)
375CXXFLAGS += $(INC_FLAGS)
376
377LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS)
378
379ifeq ($(feature-pthread-attr-setaffinity-np), 1)
380 CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
381endif
382
383ifeq ($(feature-pthread-barrier), 1)
384 CFLAGS += -DHAVE_PTHREAD_BARRIER
385endif
386
387ifndef NO_BIONIC
388 $(call feature_check,bionic)
389 ifeq ($(feature-bionic), 1)
390 BIONIC := 1
391 CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE
392 CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE
393 EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
394 EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
395 endif
396endif
397
398ifeq ($(feature-eventfd), 1)
399 CFLAGS += -DHAVE_EVENTFD_SUPPORT
400endif
401
402ifeq ($(feature-get_current_dir_name), 1)
403 CFLAGS += -DHAVE_GET_CURRENT_DIR_NAME
404endif
405
406ifeq ($(feature-gettid), 1)
407 CFLAGS += -DHAVE_GETTID
408endif
409
410ifeq ($(feature-file-handle), 1)
411 CFLAGS += -DHAVE_FILE_HANDLE
412endif
413
414ifdef NO_LIBELF
415 NO_DWARF := 1
416 NO_DEMANGLE := 1
417 NO_LIBUNWIND := 1
418 NO_LIBDW_DWARF_UNWIND := 1
419 NO_LIBBPF := 1
420 NO_JVMTI := 1
421else
422 ifeq ($(feature-libelf), 0)
423 ifeq ($(feature-glibc), 1)
424 LIBC_SUPPORT := 1
425 endif
426 ifeq ($(BIONIC),1)
427 LIBC_SUPPORT := 1
428 endif
429 ifeq ($(LIBC_SUPPORT),1)
430 msg := $(warning No libelf found. Disables 'probe' tool, jvmti and BPF support in 'perf record'. Please install libelf-dev, libelf-devel or elfutils-libelf-devel);
431
432 NO_LIBELF := 1
433 NO_DWARF := 1
434 NO_DEMANGLE := 1
435 NO_LIBUNWIND := 1
436 NO_LIBDW_DWARF_UNWIND := 1
437 NO_LIBBPF := 1
438 NO_JVMTI := 1
439 else
440 ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
441 ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
442 msg := $(error No libasan found, please install libasan);
443 endif
444 endif
445
446 ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
447 ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
448 msg := $(error No libubsan found, please install libubsan);
449 endif
450 endif
451
452 ifneq ($(filter s% -static%,$(LDFLAGS),),)
453 msg := $(error No static glibc found, please install glibc-static);
454 else
455 msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
456 endif
457 endif
458 else
459 ifndef NO_LIBDW_DWARF_UNWIND
460 ifneq ($(feature-libdw-dwarf-unwind),1)
461 NO_LIBDW_DWARF_UNWIND := 1
462 msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
463 endif
464 endif
465 ifneq ($(feature-dwarf), 1)
466 ifndef NO_DWARF
467 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);
468 NO_DWARF := 1
469 endif
470 else
471 ifneq ($(feature-dwarf_getlocations), 1)
472 msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
473 else
474 CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
475 endif # dwarf_getlocations
476 endif # Dwarf support
477 endif # libelf support
478endif # NO_LIBELF
479
480ifeq ($(feature-glibc), 1)
481 CFLAGS += -DHAVE_GLIBC_SUPPORT
482endif
483
484ifeq ($(feature-libaio), 1)
485 ifndef NO_AIO
486 CFLAGS += -DHAVE_AIO_SUPPORT
487 endif
488endif
489
490ifdef NO_DWARF
491 NO_LIBDW_DWARF_UNWIND := 1
492endif
493
494ifeq ($(feature-sched_getcpu), 1)
495 CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
496endif
497
498ifeq ($(feature-setns), 1)
499 CFLAGS += -DHAVE_SETNS_SUPPORT
500 $(call detected,CONFIG_SETNS)
501endif
502
503ifdef CORESIGHT
504 $(call feature_check,libopencsd)
505 ifeq ($(feature-libopencsd), 1)
506 CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
507 ifeq ($(feature-reallocarray), 0)
508 CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
509 endif
510 LDFLAGS += $(LIBOPENCSD_LDFLAGS)
511 EXTLIBS += $(OPENCSDLIBS)
512 $(call detected,CONFIG_LIBOPENCSD)
513 ifdef CSTRACE_RAW
514 CFLAGS += -DCS_DEBUG_RAW
515 ifeq (${CSTRACE_RAW}, packed)
516 CFLAGS += -DCS_RAW_PACKED
517 endif
518 endif
519 else
520 dummy := $(error Error: No libopencsd library found or the version is not up-to-date. Please install recent libopencsd to build with CORESIGHT=1)
521 endif
522endif
523
524ifndef NO_LIBELF
525 CFLAGS += -DHAVE_LIBELF_SUPPORT
526 EXTLIBS += -lelf
527 $(call detected,CONFIG_LIBELF)
528
529 ifeq ($(feature-libelf-getphdrnum), 1)
530 CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
531 endif
532
533 ifeq ($(feature-libelf-gelf_getnote), 1)
534 CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
535 else
536 msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
537 endif
538
539 ifeq ($(feature-libelf-getshdrstrndx), 1)
540 CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
541 endif
542
543 ifndef NO_LIBDEBUGINFOD
544 $(call feature_check,libdebuginfod)
545 ifeq ($(feature-libdebuginfod), 1)
546 CFLAGS += -DHAVE_DEBUGINFOD_SUPPORT
547 EXTLIBS += -ldebuginfod
548 endif
549 endif
550
551 ifndef NO_DWARF
552 ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
553 msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
554 NO_DWARF := 1
555 else
556 CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
557 LDFLAGS += $(LIBDW_LDFLAGS)
558 EXTLIBS += ${DWARFLIBS}
559 $(call detected,CONFIG_DWARF)
560 endif # PERF_HAVE_DWARF_REGS
561 endif # NO_DWARF
562
563 ifndef NO_LIBBPF
564 ifeq ($(feature-bpf), 1)
565 CFLAGS += -DHAVE_LIBBPF_SUPPORT
566 $(call detected,CONFIG_LIBBPF)
567
568 # detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
569 $(call feature_check,libbpf)
570 ifdef LIBBPF_DYNAMIC
571 ifeq ($(feature-libbpf), 1)
572 EXTLIBS += -lbpf
573 $(call detected,CONFIG_LIBBPF_DYNAMIC)
574
575 $(call feature_check,libbpf-btf__load_from_kernel_by_id)
576 ifeq ($(feature-libbpf-btf__load_from_kernel_by_id), 1)
577 CFLAGS += -DHAVE_LIBBPF_BTF__LOAD_FROM_KERNEL_BY_ID
578 endif
579 $(call feature_check,libbpf-bpf_prog_load)
580 ifeq ($(feature-libbpf-bpf_prog_load), 1)
581 CFLAGS += -DHAVE_LIBBPF_BPF_PROG_LOAD
582 endif
583 $(call feature_check,libbpf-bpf_object__next_program)
584 ifeq ($(feature-libbpf-bpf_object__next_program), 1)
585 CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_PROGRAM
586 endif
587 $(call feature_check,libbpf-bpf_object__next_map)
588 ifeq ($(feature-libbpf-bpf_object__next_map), 1)
589 CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_MAP
590 endif
591 $(call feature_check,libbpf-bpf_program__set_insns)
592 ifeq ($(feature-libbpf-bpf_program__set_insns), 1)
593 CFLAGS += -DHAVE_LIBBPF_BPF_PROGRAM__SET_INSNS
594 endif
595 $(call feature_check,libbpf-btf__raw_data)
596 ifeq ($(feature-libbpf-btf__raw_data), 1)
597 CFLAGS += -DHAVE_LIBBPF_BTF__RAW_DATA
598 endif
599 $(call feature_check,libbpf-bpf_map_create)
600 ifeq ($(feature-libbpf-bpf_map_create), 1)
601 CFLAGS += -DHAVE_LIBBPF_BPF_MAP_CREATE
602 endif
603 else
604 dummy := $(error Error: No libbpf devel library found, please install libbpf-devel);
605 endif
606 else
607 CFLAGS += -DHAVE_LIBBPF_BTF__LOAD_FROM_KERNEL_BY_ID
608 CFLAGS += -DHAVE_LIBBPF_BPF_PROG_LOAD
609 CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_PROGRAM
610 CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_MAP
611 CFLAGS += -DHAVE_LIBBPF_BPF_PROGRAM__SET_INSNS
612 CFLAGS += -DHAVE_LIBBPF_BTF__RAW_DATA
613 CFLAGS += -DHAVE_LIBBPF_BPF_MAP_CREATE
614 endif
615 endif
616
617 ifndef NO_DWARF
618 ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
619 CFLAGS += -DHAVE_BPF_PROLOGUE
620 $(call detected,CONFIG_BPF_PROLOGUE)
621 else
622 msg := $(warning BPF prologue is not supported by architecture $(SRCARCH), missing regs_query_register_offset());
623 endif
624 else
625 msg := $(warning DWARF support is off, BPF prologue is disabled);
626 endif
627
628 endif # NO_LIBBPF
629endif # NO_LIBELF
630
631ifndef NO_SDT
632 ifneq ($(feature-sdt), 1)
633 msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
634 NO_SDT := 1;
635 else
636 CFLAGS += -DHAVE_SDT_EVENT
637 $(call detected,CONFIG_SDT_EVENT)
638 endif
639endif
640
641ifdef PERF_HAVE_JITDUMP
642 ifndef NO_LIBELF
643 $(call detected,CONFIG_JITDUMP)
644 CFLAGS += -DHAVE_JITDUMP
645 endif
646endif
647
648ifeq ($(SRCARCH),powerpc)
649 ifndef NO_DWARF
650 CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
651 endif
652endif
653
654ifndef NO_LIBUNWIND
655 have_libunwind :=
656
657 $(call feature_check,libunwind-x86)
658 ifeq ($(feature-libunwind-x86), 1)
659 $(call detected,CONFIG_LIBUNWIND_X86)
660 CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
661 LDFLAGS += -lunwind-x86
662 EXTLIBS_LIBUNWIND += -lunwind-x86
663 have_libunwind = 1
664 endif
665
666 $(call feature_check,libunwind-aarch64)
667 ifeq ($(feature-libunwind-aarch64), 1)
668 $(call detected,CONFIG_LIBUNWIND_AARCH64)
669 CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
670 LDFLAGS += -lunwind-aarch64
671 EXTLIBS_LIBUNWIND += -lunwind-aarch64
672 have_libunwind = 1
673 $(call feature_check,libunwind-debug-frame-aarch64)
674 ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
675 msg := $(warning No debug_frame support found in libunwind-aarch64);
676 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
677 endif
678 endif
679
680 ifneq ($(feature-libunwind), 1)
681 msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
682 NO_LOCAL_LIBUNWIND := 1
683 else
684 have_libunwind := 1
685 $(call detected,CONFIG_LOCAL_LIBUNWIND)
686 endif
687
688 ifneq ($(have_libunwind), 1)
689 NO_LIBUNWIND := 1
690 endif
691else
692 NO_LOCAL_LIBUNWIND := 1
693endif
694
695ifndef NO_LIBBPF
696 ifneq ($(feature-bpf), 1)
697 msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
698 NO_LIBBPF := 1
699 endif
700endif
701
702ifdef BUILD_BPF_SKEL
703 $(call feature_check,clang-bpf-co-re)
704 ifeq ($(feature-clang-bpf-co-re), 0)
705 dummy := $(error Error: clang too old/not installed. Please install recent clang to build with BUILD_BPF_SKEL)
706 endif
707 ifeq ($(filter -DHAVE_LIBBPF_SUPPORT, $(CFLAGS)),)
708 dummy := $(error Error: BPF skeleton support requires libbpf)
709 endif
710 $(call detected,CONFIG_PERF_BPF_SKEL)
711 CFLAGS += -DHAVE_BPF_SKEL
712endif
713
714dwarf-post-unwind := 1
715dwarf-post-unwind-text := BUG
716
717# setup DWARF post unwinder
718ifdef NO_LIBUNWIND
719 ifdef NO_LIBDW_DWARF_UNWIND
720 msg := $(warning Disabling post unwind, no support found.);
721 dwarf-post-unwind := 0
722 else
723 dwarf-post-unwind-text := libdw
724 $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
725 endif
726else
727 dwarf-post-unwind-text := libunwind
728 $(call detected,CONFIG_LIBUNWIND)
729 # Enable libunwind support by default.
730 ifndef NO_LIBDW_DWARF_UNWIND
731 NO_LIBDW_DWARF_UNWIND := 1
732 endif
733endif
734
735ifeq ($(dwarf-post-unwind),1)
736 CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
737 $(call detected,CONFIG_DWARF_UNWIND)
738else
739 NO_DWARF_UNWIND := 1
740endif
741
742ifndef NO_LOCAL_LIBUNWIND
743 ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
744 $(call feature_check,libunwind-debug-frame)
745 ifneq ($(feature-libunwind-debug-frame), 1)
746 msg := $(warning No debug_frame support found in libunwind);
747 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
748 endif
749 else
750 # non-ARM has no dwarf_find_debug_frame() function:
751 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
752 endif
753 EXTLIBS += $(LIBUNWIND_LIBS)
754 LDFLAGS += $(LIBUNWIND_LIBS)
755endif
756ifeq ($(findstring -static,${LDFLAGS}),-static)
757 # gcc -static links libgcc_eh which contans piece of libunwind
758 LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
759endif
760
761ifndef NO_LIBUNWIND
762 CFLAGS += -DHAVE_LIBUNWIND_SUPPORT
763 CFLAGS += $(LIBUNWIND_CFLAGS)
764 LDFLAGS += $(LIBUNWIND_LDFLAGS)
765 EXTLIBS += $(EXTLIBS_LIBUNWIND)
766endif
767
768ifeq ($(NO_SYSCALL_TABLE),0)
769 $(call detected,CONFIG_TRACE)
770else
771 ifndef NO_LIBAUDIT
772 $(call feature_check,libaudit)
773 ifneq ($(feature-libaudit), 1)
774 msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
775 NO_LIBAUDIT := 1
776 else
777 CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
778 EXTLIBS += -laudit
779 $(call detected,CONFIG_TRACE)
780 endif
781 endif
782endif
783
784ifndef NO_LIBCRYPTO
785 ifneq ($(feature-libcrypto), 1)
786 msg := $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev);
787 NO_LIBCRYPTO := 1
788 else
789 CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
790 EXTLIBS += -lcrypto
791 $(call detected,CONFIG_CRYPTO)
792 endif
793endif
794
795ifdef NO_NEWT
796 NO_SLANG=1
797endif
798
799ifndef NO_SLANG
800 ifneq ($(feature-libslang), 1)
801 ifneq ($(feature-libslang-include-subdir), 1)
802 msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
803 NO_SLANG := 1
804 else
805 CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
806 endif
807 endif
808 ifndef NO_SLANG
809 # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
810 CFLAGS += -DHAVE_SLANG_SUPPORT
811 EXTLIBS += -lslang
812 $(call detected,CONFIG_SLANG)
813 endif
814endif
815
816ifdef GTK2
817 FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
818 $(call feature_check,gtk2)
819 ifneq ($(feature-gtk2), 1)
820 msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
821 NO_GTK2 := 1
822 else
823 $(call feature_check,gtk2-infobar)
824 ifeq ($(feature-gtk2-infobar), 1)
825 GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
826 endif
827 CFLAGS += -DHAVE_GTK2_SUPPORT
828 GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
829 GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
830 EXTLIBS += -ldl
831 endif
832endif
833
834ifdef NO_LIBPERL
835 CFLAGS += -DNO_LIBPERL
836else
837 PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
838 PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
839 PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
840 PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
841 PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
842 PERL_EMBED_CCOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
843 PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
844 FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
845
846 ifneq ($(feature-libperl), 1)
847 CFLAGS += -DNO_LIBPERL
848 NO_LIBPERL := 1
849 msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
850 else
851 LDFLAGS += $(PERL_EMBED_LDFLAGS)
852 EXTLIBS += $(PERL_EMBED_LIBADD)
853 CFLAGS += -DHAVE_LIBPERL_SUPPORT
854 ifeq ($(CC_NO_CLANG), 0)
855 CFLAGS += -Wno-compound-token-split-by-macro
856 endif
857 $(call detected,CONFIG_LIBPERL)
858 endif
859endif
860
861ifeq ($(feature-timerfd), 1)
862 CFLAGS += -DHAVE_TIMERFD_SUPPORT
863else
864 msg := $(warning No timerfd support. Disables 'perf kvm stat live');
865endif
866
867disable-python = $(eval $(disable-python_code))
868define disable-python_code
869 CFLAGS += -DNO_LIBPYTHON
870 $(warning $1)
871 NO_LIBPYTHON := 1
872endef
873
874ifdef NO_LIBPYTHON
875 $(call disable-python,Python support disabled by user)
876else
877
878 ifndef PYTHON
879 $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
880 else
881 PYTHON_WORD := $(call shell-wordify,$(PYTHON))
882
883 ifndef PYTHON_CONFIG
884 $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
885 else
886
887 ifneq ($(feature-libpython), 1)
888 $(call disable-python,No 'Python.h' (for Python 2.x support) was found: disables Python support - please install python-devel/python-dev)
889 else
890 LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
891 EXTLIBS += $(PYTHON_EMBED_LIBADD)
892 LANG_BINDINGS += $(obj-perf)python/perf.so
893 CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
894 $(call detected,CONFIG_LIBPYTHON)
895 endif
896 endif
897 endif
898endif
899
900ifneq ($(NO_JEVENTS),1)
901 ifeq ($(wildcard pmu-events/arch/$(SRCARCH)/mapfile.csv),)
902 NO_JEVENTS := 1
903 endif
904endif
905ifneq ($(NO_JEVENTS),1)
906 NO_JEVENTS := 0
907 ifndef PYTHON
908 $(warning No python interpreter disabling jevent generation)
909 NO_JEVENTS := 1
910 else
911 # jevents.py uses f-strings present in Python 3.6 released in Dec. 2016.
912 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)
913 ifneq ($(JEVENTS_PYTHON_GOOD), 1)
914 $(warning Python interpreter too old (older than 3.6) disabling jevent generation)
915 NO_JEVENTS := 1
916 endif
917 endif
918endif
919
920ifndef NO_LIBBFD
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 else
935 ifeq ($(feature-libbfd-liberty-z), 1)
936 EXTLIBS += -lbfd -lopcodes -liberty -lz
937 endif
938 endif
939 $(call feature_check,disassembler-four-args)
940 $(call feature_check,disassembler-init-styled)
941 endif
942
943 ifeq ($(feature-libbfd-buildid), 1)
944 CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
945 else
946 msg := $(warning Old version of libbfd/binutils things like PE executable profiling will not be available);
947 endif
948endif
949
950ifdef NO_DEMANGLE
951 CFLAGS += -DNO_DEMANGLE
952else
953 ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
954 EXTLIBS += -liberty
955 else
956 ifeq ($(filter -liberty,$(EXTLIBS)),)
957 $(call feature_check,cplus-demangle)
958
959 # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
960 # or any of 'bfd iberty z' trinity
961 ifeq ($(feature-cplus-demangle), 1)
962 EXTLIBS += -liberty
963 else
964 msg := $(warning No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling)
965 CFLAGS += -DNO_DEMANGLE
966 endif
967 endif
968 endif
969
970 ifneq ($(filter -liberty,$(EXTLIBS)),)
971 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
972 endif
973endif
974
975ifneq ($(filter -lbfd,$(EXTLIBS)),)
976 CFLAGS += -DHAVE_LIBBFD_SUPPORT
977endif
978
979ifndef NO_ZLIB
980 ifeq ($(feature-zlib), 1)
981 CFLAGS += -DHAVE_ZLIB_SUPPORT
982 EXTLIBS += -lz
983 $(call detected,CONFIG_ZLIB)
984 else
985 NO_ZLIB := 1
986 endif
987endif
988
989ifndef NO_LZMA
990 ifeq ($(feature-lzma), 1)
991 CFLAGS += -DHAVE_LZMA_SUPPORT
992 EXTLIBS += -llzma
993 $(call detected,CONFIG_LZMA)
994 else
995 msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
996 NO_LZMA := 1
997 endif
998endif
999
1000ifndef NO_LIBZSTD
1001 ifeq ($(feature-libzstd), 1)
1002 CFLAGS += -DHAVE_ZSTD_SUPPORT
1003 CFLAGS += $(LIBZSTD_CFLAGS)
1004 LDFLAGS += $(LIBZSTD_LDFLAGS)
1005 EXTLIBS += -lzstd
1006 $(call detected,CONFIG_ZSTD)
1007 else
1008 msg := $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR);
1009 NO_LIBZSTD := 1
1010 endif
1011endif
1012
1013ifndef NO_LIBCAP
1014 ifeq ($(feature-libcap), 1)
1015 CFLAGS += -DHAVE_LIBCAP_SUPPORT
1016 EXTLIBS += -lcap
1017 $(call detected,CONFIG_LIBCAP)
1018 else
1019 msg := $(warning No libcap found, disables capability support, please install libcap-devel/libcap-dev);
1020 NO_LIBCAP := 1
1021 endif
1022endif
1023
1024ifndef NO_BACKTRACE
1025 ifeq ($(feature-backtrace), 1)
1026 CFLAGS += -DHAVE_BACKTRACE_SUPPORT
1027 endif
1028endif
1029
1030ifndef NO_LIBNUMA
1031 ifeq ($(feature-libnuma), 0)
1032 msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
1033 NO_LIBNUMA := 1
1034 else
1035 ifeq ($(feature-numa_num_possible_cpus), 0)
1036 msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
1037 NO_LIBNUMA := 1
1038 else
1039 CFLAGS += -DHAVE_LIBNUMA_SUPPORT
1040 EXTLIBS += -lnuma
1041 $(call detected,CONFIG_NUMA)
1042 endif
1043 endif
1044endif
1045
1046ifdef HAVE_KVM_STAT_SUPPORT
1047 CFLAGS += -DHAVE_KVM_STAT_SUPPORT
1048endif
1049
1050ifeq ($(feature-disassembler-four-args), 1)
1051 CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
1052endif
1053
1054ifeq ($(feature-disassembler-init-styled), 1)
1055 CFLAGS += -DDISASM_INIT_STYLED
1056endif
1057
1058ifeq (${IS_64_BIT}, 1)
1059 ifndef NO_PERF_READ_VDSO32
1060 $(call feature_check,compile-32)
1061 ifeq ($(feature-compile-32), 1)
1062 CFLAGS += -DHAVE_PERF_READ_VDSO32
1063 else
1064 NO_PERF_READ_VDSO32 := 1
1065 endif
1066 endif
1067 ifneq ($(SRCARCH), x86)
1068 NO_PERF_READ_VDSOX32 := 1
1069 endif
1070 ifndef NO_PERF_READ_VDSOX32
1071 $(call feature_check,compile-x32)
1072 ifeq ($(feature-compile-x32), 1)
1073 CFLAGS += -DHAVE_PERF_READ_VDSOX32
1074 else
1075 NO_PERF_READ_VDSOX32 := 1
1076 endif
1077 endif
1078else
1079 NO_PERF_READ_VDSO32 := 1
1080 NO_PERF_READ_VDSOX32 := 1
1081endif
1082
1083ifndef NO_LIBBABELTRACE
1084 $(call feature_check,libbabeltrace)
1085 ifeq ($(feature-libbabeltrace), 1)
1086 CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
1087 LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
1088 EXTLIBS += -lbabeltrace-ctf
1089 $(call detected,CONFIG_LIBBABELTRACE)
1090 else
1091 msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
1092 endif
1093endif
1094
1095ifndef NO_AUXTRACE
1096 ifeq ($(SRCARCH),x86)
1097 ifeq ($(feature-get_cpuid), 0)
1098 msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
1099 NO_AUXTRACE := 1
1100 endif
1101 endif
1102 ifndef NO_AUXTRACE
1103 $(call detected,CONFIG_AUXTRACE)
1104 CFLAGS += -DHAVE_AUXTRACE_SUPPORT
1105 ifeq ($(feature-reallocarray), 0)
1106 CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
1107 endif
1108 endif
1109endif
1110
1111ifndef NO_JVMTI
1112 ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
1113 JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
1114 else
1115 ifneq (,$(wildcard /usr/sbin/alternatives))
1116 JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
1117 endif
1118 endif
1119 ifndef JDIR
1120 $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
1121 NO_JVMTI := 1
1122 endif
1123endif
1124
1125ifndef NO_JVMTI
1126 FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
1127 $(call feature_check,jvmti)
1128 ifeq ($(feature-jvmti), 1)
1129 $(call detected_var,JDIR)
1130 ifndef NO_JVMTI_CMLR
1131 FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
1132 $(call feature_check,jvmti-cmlr)
1133 ifeq ($(feature-jvmti-cmlr), 1)
1134 CFLAGS += -DHAVE_JVMTI_CMLR
1135 endif
1136 endif # NO_JVMTI_CMLR
1137 else
1138 $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
1139 NO_JVMTI := 1
1140 endif
1141endif
1142
1143USE_CXX = 0
1144USE_CLANGLLVM = 0
1145ifdef LIBCLANGLLVM
1146 $(call feature_check,cxx)
1147 ifneq ($(feature-cxx), 1)
1148 msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
1149 else
1150 $(call feature_check,llvm)
1151 $(call feature_check,llvm-version)
1152 ifneq ($(feature-llvm), 1)
1153 msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
1154 else
1155 $(call feature_check,clang)
1156 ifneq ($(feature-clang), 1)
1157 msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
1158 else
1159 CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
1160 CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
1161 $(call detected,CONFIG_CXX)
1162 $(call detected,CONFIG_CLANGLLVM)
1163 USE_CXX = 1
1164 USE_LLVM = 1
1165 USE_CLANG = 1
1166 ifneq ($(feature-llvm-version),1)
1167 msg := $(warning This version of LLVM is not tested. May cause build errors)
1168 endif
1169 endif
1170 endif
1171 endif
1172endif
1173
1174ifdef LIBPFM4
1175 $(call feature_check,libpfm4)
1176 ifeq ($(feature-libpfm4), 1)
1177 CFLAGS += -DHAVE_LIBPFM
1178 EXTLIBS += -lpfm
1179 ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
1180 $(call detected,CONFIG_LIBPFM4)
1181 else
1182 msg := $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev);
1183 NO_LIBPFM4 := 1
1184 endif
1185endif
1186
1187ifdef LIBTRACEEVENT_DYNAMIC
1188 $(call feature_check,libtraceevent)
1189 ifeq ($(feature-libtraceevent), 1)
1190 EXTLIBS += -ltraceevent
1191 LIBTRACEEVENT_VERSION := $(shell $(PKG_CONFIG) --modversion libtraceevent)
1192 LIBTRACEEVENT_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1193 LIBTRACEEVENT_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1194 LIBTRACEEVENT_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1195 LIBTRACEEVENT_VERSION_CPP := $(shell expr $(LIBTRACEEVENT_VERSION_1) \* 255 \* 255 + $(LIBTRACEEVENT_VERSION_2) \* 255 + $(LIBTRACEEVENT_VERSION_3))
1196 CFLAGS += -DLIBTRACEEVENT_VERSION=$(LIBTRACEEVENT_VERSION_CPP)
1197 else
1198 dummy := $(error Error: No libtraceevent devel library found, please install libtraceevent-devel);
1199 endif
1200endif
1201
1202ifdef LIBTRACEFS_DYNAMIC
1203 $(call feature_check,libtracefs)
1204 ifeq ($(feature-libtracefs), 1)
1205 EXTLIBS += -ltracefs
1206 LIBTRACEFS_VERSION := $(shell $(PKG_CONFIG) --modversion libtracefs)
1207 LIBTRACEFS_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEFS_VERSION)))
1208 LIBTRACEFS_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEFS_VERSION)))
1209 LIBTRACEFS_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEFS_VERSION)))
1210 LIBTRACEFS_VERSION_CPP := $(shell expr $(LIBTRACEFS_VERSION_1) \* 255 \* 255 + $(LIBTRACEFS_VERSION_2) \* 255 + $(LIBTRACEFS_VERSION_3))
1211 CFLAGS += -DLIBTRACEFS_VERSION=$(LIBTRACEFS_VERSION_CPP)
1212 else
1213 dummy := $(error Error: No libtracefs devel library found, please install libtracefs-dev);
1214 endif
1215endif
1216
1217# Among the variables below, these:
1218# perfexecdir
1219# perf_include_dir
1220# perf_examples_dir
1221# template_dir
1222# mandir
1223# infodir
1224# htmldir
1225# ETC_PERFCONFIG (but not sysconfdir)
1226# can be specified as a relative path some/where/else;
1227# this is interpreted as relative to $(prefix) and "perf" at
1228# runtime figures out where they are based on the path to the executable.
1229# This can help installing the suite in a relocatable way.
1230
1231# Make the path relative to DESTDIR, not to prefix
1232ifndef DESTDIR
1233prefix ?= $(HOME)
1234endif
1235bindir_relative = bin
1236bindir = $(abspath $(prefix)/$(bindir_relative))
1237includedir_relative = include
1238includedir = $(abspath $(prefix)/$(includedir_relative))
1239mandir = share/man
1240infodir = share/info
1241perfexecdir = libexec/perf-core
1242perf_include_dir = lib/perf/include
1243perf_examples_dir = lib/perf/examples
1244sharedir = $(prefix)/share
1245template_dir = share/perf-core/templates
1246STRACE_GROUPS_DIR = share/perf-core/strace/groups
1247htmldir = share/doc/perf-doc
1248tipdir = share/doc/perf-tip
1249srcdir = $(srctree)/tools/perf
1250ifeq ($(prefix),/usr)
1251sysconfdir = /etc
1252ETC_PERFCONFIG = $(sysconfdir)/perfconfig
1253else
1254sysconfdir = $(prefix)/etc
1255ETC_PERFCONFIG = etc/perfconfig
1256endif
1257ifndef lib
1258ifeq ($(SRCARCH)$(IS_64_BIT), x861)
1259lib = lib64
1260else
1261lib = lib
1262endif
1263endif # lib
1264libdir = $(prefix)/$(lib)
1265
1266# Shell quote (do not use $(call) to accommodate ancient setups);
1267ETC_PERFCONFIG_SQ = $(subst ','\'',$(ETC_PERFCONFIG))
1268STRACE_GROUPS_DIR_SQ = $(subst ','\'',$(STRACE_GROUPS_DIR))
1269DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
1270bindir_SQ = $(subst ','\'',$(bindir))
1271includedir_SQ = $(subst ','\'',$(includedir))
1272mandir_SQ = $(subst ','\'',$(mandir))
1273infodir_SQ = $(subst ','\'',$(infodir))
1274perfexecdir_SQ = $(subst ','\'',$(perfexecdir))
1275perf_include_dir_SQ = $(subst ','\'',$(perf_include_dir))
1276perf_examples_dir_SQ = $(subst ','\'',$(perf_examples_dir))
1277template_dir_SQ = $(subst ','\'',$(template_dir))
1278htmldir_SQ = $(subst ','\'',$(htmldir))
1279tipdir_SQ = $(subst ','\'',$(tipdir))
1280prefix_SQ = $(subst ','\'',$(prefix))
1281sysconfdir_SQ = $(subst ','\'',$(sysconfdir))
1282libdir_SQ = $(subst ','\'',$(libdir))
1283srcdir_SQ = $(subst ','\'',$(srcdir))
1284
1285ifneq ($(filter /%,$(firstword $(perfexecdir))),)
1286perfexec_instdir = $(perfexecdir)
1287perf_include_instdir = $(perf_include_dir)
1288perf_examples_instdir = $(perf_examples_dir)
1289STRACE_GROUPS_INSTDIR = $(STRACE_GROUPS_DIR)
1290tip_instdir = $(tipdir)
1291else
1292perfexec_instdir = $(prefix)/$(perfexecdir)
1293perf_include_instdir = $(prefix)/$(perf_include_dir)
1294perf_examples_instdir = $(prefix)/$(perf_examples_dir)
1295STRACE_GROUPS_INSTDIR = $(prefix)/$(STRACE_GROUPS_DIR)
1296tip_instdir = $(prefix)/$(tipdir)
1297endif
1298perfexec_instdir_SQ = $(subst ','\'',$(perfexec_instdir))
1299perf_include_instdir_SQ = $(subst ','\'',$(perf_include_instdir))
1300perf_examples_instdir_SQ = $(subst ','\'',$(perf_examples_instdir))
1301STRACE_GROUPS_INSTDIR_SQ = $(subst ','\'',$(STRACE_GROUPS_INSTDIR))
1302tip_instdir_SQ = $(subst ','\'',$(tip_instdir))
1303
1304export perfexec_instdir_SQ
1305
1306# If we install to $(HOME) we keep the traceevent default:
1307# $(HOME)/.traceevent/plugins
1308# Otherwise we install plugins into the global $(libdir).
1309ifdef DESTDIR
1310plugindir=$(libdir)/traceevent/plugins
1311plugindir_SQ= $(subst ','\'',$(plugindir))
1312endif
1313
1314print_var = $(eval $(print_var_code)) $(info $(MSG))
1315define print_var_code
1316 MSG = $(shell printf '...%40s: %s' $(1) $($(1)))
1317endef
1318
1319ifeq ($(feature_display),1)
1320 $(call feature_display_entries)
1321endif
1322
1323ifeq ($(VF),1)
1324 # Display EXTRA features which are detected manualy
1325 # from here with feature_check call and thus cannot
1326 # be partof global state output.
1327 $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),) $(info $(MSG)))
1328 $(call print_var,prefix)
1329 $(call print_var,bindir)
1330 $(call print_var,libdir)
1331 $(call print_var,sysconfdir)
1332 $(call print_var,LIBUNWIND_DIR)
1333 $(call print_var,LIBDW_DIR)
1334 $(call print_var,JDIR)
1335
1336 ifeq ($(dwarf-post-unwind),1)
1337 $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text)) $(info $(MSG))
1338 endif
1339endif
1340
1341$(info )
1342
1343$(call detected_var,bindir_SQ)
1344$(call detected_var,PYTHON_WORD)
1345ifneq ($(OUTPUT),)
1346$(call detected_var,OUTPUT)
1347endif
1348$(call detected_var,htmldir_SQ)
1349$(call detected_var,infodir_SQ)
1350$(call detected_var,mandir_SQ)
1351$(call detected_var,ETC_PERFCONFIG_SQ)
1352$(call detected_var,STRACE_GROUPS_DIR_SQ)
1353$(call detected_var,prefix_SQ)
1354$(call detected_var,perfexecdir_SQ)
1355$(call detected_var,perf_include_dir_SQ)
1356$(call detected_var,perf_examples_dir_SQ)
1357$(call detected_var,tipdir_SQ)
1358$(call detected_var,srcdir_SQ)
1359$(call detected_var,LIBDIR)
1360$(call detected_var,GTK_CFLAGS)
1361$(call detected_var,PERL_EMBED_CCOPTS)
1362$(call detected_var,PYTHON_EMBED_CCOPTS)
1363ifneq ($(BISON_FILE_PREFIX_MAP),)
1364$(call detected_var,BISON_FILE_PREFIX_MAP)
1365endif
1366
1367# re-generate FEATURE-DUMP as we may have called feature_check, found out
1368# extra libraries to add to LDFLAGS of some other test and then redo those
1369# tests.
1370$(shell rm -f $(FEATURE_DUMP_FILENAME))
1371$(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))