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
22include $(srctree)/tools/scripts/Makefile.arch
23
24$(call detected_var,SRCARCH)
25
26NO_PERF_REGS := 1
27
28ifneq ($(NO_SYSCALL_TABLE),1)
29 NO_SYSCALL_TABLE := 1
30
31 ifeq ($(SRCARCH),x86)
32 ifeq (${IS_64_BIT}, 1)
33 NO_SYSCALL_TABLE := 0
34 endif
35 else
36 ifeq ($(SRCARCH),$(filter $(SRCARCH),powerpc arm64 s390 mips))
37 NO_SYSCALL_TABLE := 0
38 endif
39 endif
40
41 ifneq ($(NO_SYSCALL_TABLE),1)
42 CFLAGS += -DHAVE_SYSCALL_TABLE_SUPPORT
43 endif
44endif
45
46# Additional ARCH settings for ppc
47ifeq ($(SRCARCH),powerpc)
48 NO_PERF_REGS := 0
49 CFLAGS += -I$(OUTPUT)arch/powerpc/include/generated
50 LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
51endif
52
53# Additional ARCH settings for x86
54ifeq ($(SRCARCH),x86)
55 $(call detected,CONFIG_X86)
56 ifeq (${IS_64_BIT}, 1)
57 CFLAGS += -DHAVE_ARCH_X86_64_SUPPORT -I$(OUTPUT)arch/x86/include/generated
58 ARCH_INCLUDE = ../../arch/x86/lib/memcpy_64.S ../../arch/x86/lib/memset_64.S
59 LIBUNWIND_LIBS = -lunwind-x86_64 -lunwind -llzma
60 $(call detected,CONFIG_X86_64)
61 else
62 LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
63 endif
64 NO_PERF_REGS := 0
65endif
66
67ifeq ($(SRCARCH),arm)
68 NO_PERF_REGS := 0
69 LIBUNWIND_LIBS = -lunwind -lunwind-arm
70endif
71
72ifeq ($(SRCARCH),arm64)
73 NO_PERF_REGS := 0
74 CFLAGS += -I$(OUTPUT)arch/arm64/include/generated
75 LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
76endif
77
78ifeq ($(SRCARCH),riscv)
79 NO_PERF_REGS := 0
80endif
81
82ifeq ($(SRCARCH),csky)
83 NO_PERF_REGS := 0
84endif
85
86ifeq ($(ARCH),s390)
87 NO_PERF_REGS := 0
88 CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
89endif
90
91ifeq ($(ARCH),mips)
92 NO_PERF_REGS := 0
93 CFLAGS += -I$(OUTPUT)arch/mips/include/generated
94 LIBUNWIND_LIBS = -lunwind -lunwind-mips
95endif
96
97ifeq ($(NO_PERF_REGS),0)
98 $(call detected,CONFIG_PERF_REGS)
99endif
100
101# So far there's only x86 and arm libdw unwind support merged in perf.
102# Disable it on all other architectures in case libdw unwind
103# support is detected in system. Add supported architectures
104# to the check.
105ifneq ($(SRCARCH),$(filter $(SRCARCH),x86 arm arm64 powerpc s390 csky riscv))
106 NO_LIBDW_DWARF_UNWIND := 1
107endif
108
109ifeq ($(LIBUNWIND_LIBS),)
110 NO_LIBUNWIND := 1
111endif
112#
113# For linking with debug library, run like:
114#
115# make DEBUG=1 LIBUNWIND_DIR=/opt/libunwind/
116#
117
118libunwind_arch_set_flags = $(eval $(libunwind_arch_set_flags_code))
119define libunwind_arch_set_flags_code
120 FEATURE_CHECK_CFLAGS-libunwind-$(1) = -I$(LIBUNWIND_DIR)/include
121 FEATURE_CHECK_LDFLAGS-libunwind-$(1) = -L$(LIBUNWIND_DIR)/lib
122endef
123
124ifdef LIBUNWIND_DIR
125 LIBUNWIND_CFLAGS = -I$(LIBUNWIND_DIR)/include
126 LIBUNWIND_LDFLAGS = -L$(LIBUNWIND_DIR)/lib
127 LIBUNWIND_ARCHS = x86 x86_64 arm aarch64 debug-frame-arm debug-frame-aarch64
128 $(foreach libunwind_arch,$(LIBUNWIND_ARCHS),$(call libunwind_arch_set_flags,$(libunwind_arch)))
129endif
130
131# Set per-feature check compilation flags
132FEATURE_CHECK_CFLAGS-libunwind = $(LIBUNWIND_CFLAGS)
133FEATURE_CHECK_LDFLAGS-libunwind = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
134FEATURE_CHECK_CFLAGS-libunwind-debug-frame = $(LIBUNWIND_CFLAGS)
135FEATURE_CHECK_LDFLAGS-libunwind-debug-frame = $(LIBUNWIND_LDFLAGS) $(LIBUNWIND_LIBS)
136
137FEATURE_CHECK_LDFLAGS-libunwind-arm += -lunwind -lunwind-arm
138FEATURE_CHECK_LDFLAGS-libunwind-aarch64 += -lunwind -lunwind-aarch64
139FEATURE_CHECK_LDFLAGS-libunwind-x86 += -lunwind -llzma -lunwind-x86
140FEATURE_CHECK_LDFLAGS-libunwind-x86_64 += -lunwind -llzma -lunwind-x86_64
141
142FEATURE_CHECK_LDFLAGS-libcrypto = -lcrypto
143
144ifdef CSINCLUDES
145 LIBOPENCSD_CFLAGS := -I$(CSINCLUDES)
146endif
147OPENCSDLIBS := -lopencsd_c_api
148ifeq ($(findstring -static,${LDFLAGS}),-static)
149 OPENCSDLIBS += -lopencsd -lstdc++
150endif
151ifdef CSLIBS
152 LIBOPENCSD_LDFLAGS := -L$(CSLIBS)
153endif
154FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
155FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
156
157ifeq ($(NO_PERF_REGS),0)
158 CFLAGS += -DHAVE_PERF_REGS_SUPPORT
159endif
160
161# for linking with debug library, run like:
162# make DEBUG=1 LIBDW_DIR=/opt/libdw/
163ifdef LIBDW_DIR
164 LIBDW_CFLAGS := -I$(LIBDW_DIR)/include
165 LIBDW_LDFLAGS := -L$(LIBDW_DIR)/lib
166endif
167DWARFLIBS := -ldw
168ifeq ($(findstring -static,${LDFLAGS}),-static)
169 DWARFLIBS += -lelf -lebl -ldl -lz -llzma -lbz2
170endif
171FEATURE_CHECK_CFLAGS-libdw-dwarf-unwind := $(LIBDW_CFLAGS)
172FEATURE_CHECK_LDFLAGS-libdw-dwarf-unwind := $(LIBDW_LDFLAGS) $(DWARFLIBS)
173
174# for linking with debug library, run like:
175# make DEBUG=1 LIBBABELTRACE_DIR=/opt/libbabeltrace/
176ifdef LIBBABELTRACE_DIR
177 LIBBABELTRACE_CFLAGS := -I$(LIBBABELTRACE_DIR)/include
178 LIBBABELTRACE_LDFLAGS := -L$(LIBBABELTRACE_DIR)/lib
179endif
180FEATURE_CHECK_CFLAGS-libbabeltrace := $(LIBBABELTRACE_CFLAGS)
181FEATURE_CHECK_LDFLAGS-libbabeltrace := $(LIBBABELTRACE_LDFLAGS) -lbabeltrace-ctf
182
183ifdef LIBZSTD_DIR
184 LIBZSTD_CFLAGS := -I$(LIBZSTD_DIR)/lib
185 LIBZSTD_LDFLAGS := -L$(LIBZSTD_DIR)/lib
186endif
187FEATURE_CHECK_CFLAGS-libzstd := $(LIBZSTD_CFLAGS)
188FEATURE_CHECK_LDFLAGS-libzstd := $(LIBZSTD_LDFLAGS)
189
190FEATURE_CHECK_CFLAGS-bpf = -I. -I$(srctree)/tools/include -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi -I$(srctree)/tools/include/uapi
191# include ARCH specific config
192-include $(src-perf)/arch/$(SRCARCH)/Makefile
193
194ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
195 CFLAGS += -DHAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
196endif
197
198include $(srctree)/tools/scripts/utilities.mak
199
200ifeq ($(call get-executable,$(FLEX)),)
201 dummy := $(error Error: $(FLEX) is missing on this system, please install it)
202endif
203
204ifeq ($(call get-executable,$(BISON)),)
205 dummy := $(error Error: $(BISON) is missing on this system, please install it)
206endif
207
208ifneq ($(OUTPUT),)
209 ifeq ($(shell expr $(shell $(BISON) --version | grep bison | sed -e 's/.\+ \([0-9]\+\).\([0-9]\+\).\([0-9]\+\)/\1\2\3/g') \>\= 371), 1)
210 BISON_FILE_PREFIX_MAP := --file-prefix-map=$(OUTPUT)=
211 endif
212endif
213
214# Treat warnings as errors unless directed not to
215ifneq ($(WERROR),0)
216 CORE_CFLAGS += -Werror
217 CXXFLAGS += -Werror
218 HOSTCFLAGS += -Werror
219endif
220
221ifndef DEBUG
222 DEBUG := 0
223endif
224
225ifeq ($(DEBUG),0)
226ifeq ($(CC_NO_CLANG), 0)
227 CORE_CFLAGS += -O3
228else
229 CORE_CFLAGS += -O6
230endif
231endif
232
233ifdef PARSER_DEBUG
234 PARSER_DEBUG_BISON := -t
235 PARSER_DEBUG_FLEX := -d
236 CFLAGS += -DPARSER_DEBUG
237 $(call detected_var,PARSER_DEBUG_BISON)
238 $(call detected_var,PARSER_DEBUG_FLEX)
239endif
240
241# Try different combinations to accommodate systems that only have
242# python[2][3]-config in weird combinations in the following order of
243# priority from lowest to highest:
244# * python3-config
245# * python-config
246# * python2-config as per pep-0394.
247# * $(PYTHON)-config (If PYTHON is user supplied but PYTHON_CONFIG isn't)
248#
249PYTHON_AUTO := python-config
250PYTHON_AUTO := $(if $(call get-executable,python3-config),python3-config,$(PYTHON_AUTO))
251PYTHON_AUTO := $(if $(call get-executable,python-config),python-config,$(PYTHON_AUTO))
252PYTHON_AUTO := $(if $(call get-executable,python2-config),python2-config,$(PYTHON_AUTO))
253
254# If PYTHON is defined but PYTHON_CONFIG isn't, then take $(PYTHON)-config as if it was the user
255# supplied value for PYTHON_CONFIG. Because it's "user supplied", error out if it doesn't exist.
256ifdef PYTHON
257 ifndef PYTHON_CONFIG
258 PYTHON_CONFIG_AUTO := $(call get-executable,$(PYTHON)-config)
259 PYTHON_CONFIG := $(if $(PYTHON_CONFIG_AUTO),$(PYTHON_CONFIG_AUTO),\
260 $(call $(error $(PYTHON)-config not found)))
261 endif
262endif
263
264# Select either auto detected python and python-config or use user supplied values if they are
265# defined. get-executable-or-default fails with an error if the first argument is supplied but
266# doesn't exist.
267override PYTHON_CONFIG := $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON_AUTO))
268override PYTHON := $(call get-executable-or-default,PYTHON,$(subst -config,,$(PYTHON_AUTO)))
269
270grep-libs = $(filter -l%,$(1))
271strip-libs = $(filter-out -l%,$(1))
272
273PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG))
274
275# Python 3.8 changed the output of `python-config --ldflags` to not include the
276# '-lpythonX.Y' flag unless '--embed' is also passed. The feature check for
277# libpython fails if that flag is not included in LDFLAGS
278ifeq ($(shell $(PYTHON_CONFIG_SQ) --ldflags --embed 2>&1 1>/dev/null; echo $$?), 0)
279 PYTHON_CONFIG_LDFLAGS := --ldflags --embed
280else
281 PYTHON_CONFIG_LDFLAGS := --ldflags
282endif
283
284ifdef PYTHON_CONFIG
285 PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) $(PYTHON_CONFIG_LDFLAGS) 2>/dev/null)
286 PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS))
287 PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) -lutil
288 PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --includes 2>/dev/null)
289 FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS)
290 ifeq ($(CC_NO_CLANG), 0)
291 PYTHON_EMBED_CCOPTS := $(filter-out -ffat-lto-objects, $(PYTHON_EMBED_CCOPTS))
292 endif
293endif
294
295FEATURE_CHECK_CFLAGS-libpython := $(PYTHON_EMBED_CCOPTS)
296FEATURE_CHECK_LDFLAGS-libpython := $(PYTHON_EMBED_LDOPTS)
297
298FEATURE_CHECK_LDFLAGS-libaio = -lrt
299
300FEATURE_CHECK_LDFLAGS-disassembler-four-args = -lbfd -lopcodes -ldl
301
302CORE_CFLAGS += -fno-omit-frame-pointer
303CORE_CFLAGS += -ggdb3
304CORE_CFLAGS += -funwind-tables
305CORE_CFLAGS += -Wall
306CORE_CFLAGS += -Wextra
307CORE_CFLAGS += -std=gnu99
308
309CXXFLAGS += -std=gnu++14 -fno-exceptions -fno-rtti
310CXXFLAGS += -Wall
311CXXFLAGS += -fno-omit-frame-pointer
312CXXFLAGS += -ggdb3
313CXXFLAGS += -funwind-tables
314CXXFLAGS += -Wno-strict-aliasing
315
316HOSTCFLAGS += -Wall
317HOSTCFLAGS += -Wextra
318
319# Enforce a non-executable stack, as we may regress (again) in the future by
320# adding assembler files missing the .GNU-stack linker note.
321LDFLAGS += -Wl,-z,noexecstack
322
323EXTLIBS = -lpthread -lrt -lm -ldl
324
325ifneq ($(TCMALLOC),)
326 CFLAGS += -fno-builtin-malloc -fno-builtin-calloc -fno-builtin-realloc -fno-builtin-free
327 EXTLIBS += -ltcmalloc
328endif
329
330ifeq ($(FEATURES_DUMP),)
331# We will display at the end of this Makefile.config, using $(call feature_display_entries)
332# As we may retry some feature detection here, see the disassembler-four-args case, for instance
333 FEATURE_DISPLAY_DEFERRED := 1
334include $(srctree)/tools/build/Makefile.feature
335else
336include $(FEATURES_DUMP)
337endif
338
339ifeq ($(feature-stackprotector-all), 1)
340 CORE_CFLAGS += -fstack-protector-all
341endif
342
343ifeq ($(DEBUG),0)
344 ifeq ($(feature-fortify-source), 1)
345 CORE_CFLAGS += -D_FORTIFY_SOURCE=2
346 endif
347endif
348
349INC_FLAGS += -I$(srctree)/tools/lib/perf/include
350INC_FLAGS += -I$(src-perf)/util/include
351INC_FLAGS += -I$(src-perf)/arch/$(SRCARCH)/include
352INC_FLAGS += -I$(srctree)/tools/include/
353INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/uapi
354INC_FLAGS += -I$(srctree)/tools/include/uapi
355INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/include/
356INC_FLAGS += -I$(srctree)/tools/arch/$(SRCARCH)/
357
358# $(obj-perf) for generated common-cmds.h
359# $(obj-perf)/util for generated bison/flex headers
360ifneq ($(OUTPUT),)
361INC_FLAGS += -I$(obj-perf)/util
362INC_FLAGS += -I$(obj-perf)
363endif
364
365INC_FLAGS += -I$(src-perf)/util
366INC_FLAGS += -I$(src-perf)
367INC_FLAGS += -I$(srctree)/tools/lib/
368
369CORE_CFLAGS += -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64 -D_GNU_SOURCE
370
371CFLAGS += $(CORE_CFLAGS) $(INC_FLAGS)
372CXXFLAGS += $(INC_FLAGS)
373
374LIBPERF_CFLAGS := $(CORE_CFLAGS) $(EXTRA_CFLAGS)
375
376ifeq ($(feature-pthread-attr-setaffinity-np), 1)
377 CFLAGS += -DHAVE_PTHREAD_ATTR_SETAFFINITY_NP
378endif
379
380ifeq ($(feature-pthread-barrier), 1)
381 CFLAGS += -DHAVE_PTHREAD_BARRIER
382endif
383
384ifndef NO_BIONIC
385 $(call feature_check,bionic)
386 ifeq ($(feature-bionic), 1)
387 BIONIC := 1
388 CFLAGS += -DLACKS_SIGQUEUE_PROTOTYPE
389 CFLAGS += -DLACKS_OPEN_MEMSTREAM_PROTOTYPE
390 EXTLIBS := $(filter-out -lrt,$(EXTLIBS))
391 EXTLIBS := $(filter-out -lpthread,$(EXTLIBS))
392 endif
393endif
394
395ifeq ($(feature-eventfd), 1)
396 CFLAGS += -DHAVE_EVENTFD_SUPPORT
397endif
398
399ifeq ($(feature-get_current_dir_name), 1)
400 CFLAGS += -DHAVE_GET_CURRENT_DIR_NAME
401endif
402
403ifeq ($(feature-gettid), 1)
404 CFLAGS += -DHAVE_GETTID
405endif
406
407ifeq ($(feature-file-handle), 1)
408 CFLAGS += -DHAVE_FILE_HANDLE
409endif
410
411ifdef NO_LIBELF
412 NO_DWARF := 1
413 NO_DEMANGLE := 1
414 NO_LIBUNWIND := 1
415 NO_LIBDW_DWARF_UNWIND := 1
416 NO_LIBBPF := 1
417 NO_JVMTI := 1
418else
419 ifeq ($(feature-libelf), 0)
420 ifeq ($(feature-glibc), 1)
421 LIBC_SUPPORT := 1
422 endif
423 ifeq ($(BIONIC),1)
424 LIBC_SUPPORT := 1
425 endif
426 ifeq ($(LIBC_SUPPORT),1)
427 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);
428
429 NO_LIBELF := 1
430 NO_DWARF := 1
431 NO_DEMANGLE := 1
432 NO_LIBUNWIND := 1
433 NO_LIBDW_DWARF_UNWIND := 1
434 NO_LIBBPF := 1
435 NO_JVMTI := 1
436 else
437 ifneq ($(filter s% -fsanitize=address%,$(EXTRA_CFLAGS),),)
438 ifneq ($(shell ldconfig -p | grep libasan >/dev/null 2>&1; echo $$?), 0)
439 msg := $(error No libasan found, please install libasan);
440 endif
441 endif
442
443 ifneq ($(filter s% -fsanitize=undefined%,$(EXTRA_CFLAGS),),)
444 ifneq ($(shell ldconfig -p | grep libubsan >/dev/null 2>&1; echo $$?), 0)
445 msg := $(error No libubsan found, please install libubsan);
446 endif
447 endif
448
449 ifneq ($(filter s% -static%,$(LDFLAGS),),)
450 msg := $(error No static glibc found, please install glibc-static);
451 else
452 msg := $(error No gnu/libc-version.h found, please install glibc-dev[el]);
453 endif
454 endif
455 else
456 ifndef NO_LIBDW_DWARF_UNWIND
457 ifneq ($(feature-libdw-dwarf-unwind),1)
458 NO_LIBDW_DWARF_UNWIND := 1
459 msg := $(warning No libdw DWARF unwind found, Please install elfutils-devel/libdw-dev >= 0.158 and/or set LIBDW_DIR);
460 endif
461 endif
462 ifneq ($(feature-dwarf), 1)
463 ifndef NO_DWARF
464 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);
465 NO_DWARF := 1
466 endif
467 else
468 ifneq ($(feature-dwarf_getlocations), 1)
469 msg := $(warning Old libdw.h, finding variables at given 'perf probe' point will not work, install elfutils-devel/libdw-dev >= 0.157);
470 else
471 CFLAGS += -DHAVE_DWARF_GETLOCATIONS_SUPPORT
472 endif # dwarf_getlocations
473 endif # Dwarf support
474 endif # libelf support
475endif # NO_LIBELF
476
477ifeq ($(feature-glibc), 1)
478 CFLAGS += -DHAVE_GLIBC_SUPPORT
479endif
480
481ifeq ($(feature-libaio), 1)
482 ifndef NO_AIO
483 CFLAGS += -DHAVE_AIO_SUPPORT
484 endif
485endif
486
487ifdef NO_DWARF
488 NO_LIBDW_DWARF_UNWIND := 1
489endif
490
491ifeq ($(feature-sched_getcpu), 1)
492 CFLAGS += -DHAVE_SCHED_GETCPU_SUPPORT
493endif
494
495ifeq ($(feature-setns), 1)
496 CFLAGS += -DHAVE_SETNS_SUPPORT
497 $(call detected,CONFIG_SETNS)
498endif
499
500ifdef CORESIGHT
501 $(call feature_check,libopencsd)
502 ifeq ($(feature-libopencsd), 1)
503 CFLAGS += -DHAVE_CSTRACE_SUPPORT $(LIBOPENCSD_CFLAGS)
504 ifeq ($(feature-reallocarray), 0)
505 CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
506 endif
507 LDFLAGS += $(LIBOPENCSD_LDFLAGS)
508 EXTLIBS += $(OPENCSDLIBS)
509 $(call detected,CONFIG_LIBOPENCSD)
510 ifdef CSTRACE_RAW
511 CFLAGS += -DCS_DEBUG_RAW
512 ifeq (${CSTRACE_RAW}, packed)
513 CFLAGS += -DCS_RAW_PACKED
514 endif
515 endif
516 else
517 dummy := $(error Error: No libopencsd library found or the version is not up-to-date. Please install recent libopencsd to build with CORESIGHT=1)
518 endif
519endif
520
521ifndef NO_LIBELF
522 CFLAGS += -DHAVE_LIBELF_SUPPORT
523 EXTLIBS += -lelf
524 $(call detected,CONFIG_LIBELF)
525
526 ifeq ($(feature-libelf-getphdrnum), 1)
527 CFLAGS += -DHAVE_ELF_GETPHDRNUM_SUPPORT
528 endif
529
530 ifeq ($(feature-libelf-gelf_getnote), 1)
531 CFLAGS += -DHAVE_GELF_GETNOTE_SUPPORT
532 else
533 msg := $(warning gelf_getnote() not found on libelf, SDT support disabled);
534 endif
535
536 ifeq ($(feature-libelf-getshdrstrndx), 1)
537 CFLAGS += -DHAVE_ELF_GETSHDRSTRNDX_SUPPORT
538 endif
539
540 ifndef NO_LIBDEBUGINFOD
541 $(call feature_check,libdebuginfod)
542 ifeq ($(feature-libdebuginfod), 1)
543 CFLAGS += -DHAVE_DEBUGINFOD_SUPPORT
544 EXTLIBS += -ldebuginfod
545 endif
546 endif
547
548 ifndef NO_DWARF
549 ifeq ($(origin PERF_HAVE_DWARF_REGS), undefined)
550 msg := $(warning DWARF register mappings have not been defined for architecture $(SRCARCH), DWARF support disabled);
551 NO_DWARF := 1
552 else
553 CFLAGS += -DHAVE_DWARF_SUPPORT $(LIBDW_CFLAGS)
554 LDFLAGS += $(LIBDW_LDFLAGS)
555 EXTLIBS += ${DWARFLIBS}
556 $(call detected,CONFIG_DWARF)
557 endif # PERF_HAVE_DWARF_REGS
558 endif # NO_DWARF
559
560 ifndef NO_LIBBPF
561 ifeq ($(feature-bpf), 1)
562 CFLAGS += -DHAVE_LIBBPF_SUPPORT
563 $(call detected,CONFIG_LIBBPF)
564
565 # detecting libbpf without LIBBPF_DYNAMIC, so make VF=1 shows libbpf detection status
566 $(call feature_check,libbpf)
567 ifdef LIBBPF_DYNAMIC
568 ifeq ($(feature-libbpf), 1)
569 EXTLIBS += -lbpf
570 $(call detected,CONFIG_LIBBPF_DYNAMIC)
571
572 $(call feature_check,libbpf-btf__load_from_kernel_by_id)
573 ifeq ($(feature-libbpf-btf__load_from_kernel_by_id), 1)
574 CFLAGS += -DHAVE_LIBBPF_BTF__LOAD_FROM_KERNEL_BY_ID
575 endif
576 $(call feature_check,libbpf-bpf_prog_load)
577 ifeq ($(feature-libbpf-bpf_prog_load), 1)
578 CFLAGS += -DHAVE_LIBBPF_BPF_PROG_LOAD
579 endif
580 $(call feature_check,libbpf-bpf_object__next_program)
581 ifeq ($(feature-libbpf-bpf_object__next_program), 1)
582 CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_PROGRAM
583 endif
584 $(call feature_check,libbpf-bpf_object__next_map)
585 ifeq ($(feature-libbpf-bpf_object__next_map), 1)
586 CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_MAP
587 endif
588 $(call feature_check,libbpf-btf__raw_data)
589 ifeq ($(feature-libbpf-btf__raw_data), 1)
590 CFLAGS += -DHAVE_LIBBPF_BTF__RAW_DATA
591 endif
592 $(call feature_check,libbpf-bpf_map_create)
593 ifeq ($(feature-libbpf-bpf_map_create), 1)
594 CFLAGS += -DHAVE_LIBBPF_BPF_MAP_CREATE
595 endif
596 else
597 dummy := $(error Error: No libbpf devel library found, please install libbpf-devel);
598 endif
599 else
600 CFLAGS += -DHAVE_LIBBPF_BTF__LOAD_FROM_KERNEL_BY_ID
601 CFLAGS += -DHAVE_LIBBPF_BPF_PROG_LOAD
602 CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_PROGRAM
603 CFLAGS += -DHAVE_LIBBPF_BPF_OBJECT__NEXT_MAP
604 CFLAGS += -DHAVE_LIBBPF_BTF__RAW_DATA
605 CFLAGS += -DHAVE_LIBBPF_BPF_MAP_CREATE
606 endif
607 endif
608
609 ifndef NO_DWARF
610 ifdef PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET
611 CFLAGS += -DHAVE_BPF_PROLOGUE
612 $(call detected,CONFIG_BPF_PROLOGUE)
613 else
614 msg := $(warning BPF prologue is not supported by architecture $(SRCARCH), missing regs_query_register_offset());
615 endif
616 else
617 msg := $(warning DWARF support is off, BPF prologue is disabled);
618 endif
619
620 endif # NO_LIBBPF
621endif # NO_LIBELF
622
623ifndef NO_SDT
624 ifneq ($(feature-sdt), 1)
625 msg := $(warning No sys/sdt.h found, no SDT events are defined, please install systemtap-sdt-devel or systemtap-sdt-dev);
626 NO_SDT := 1;
627 else
628 CFLAGS += -DHAVE_SDT_EVENT
629 $(call detected,CONFIG_SDT_EVENT)
630 endif
631endif
632
633ifdef PERF_HAVE_JITDUMP
634 ifndef NO_LIBELF
635 $(call detected,CONFIG_JITDUMP)
636 CFLAGS += -DHAVE_JITDUMP
637 endif
638endif
639
640ifeq ($(SRCARCH),powerpc)
641 ifndef NO_DWARF
642 CFLAGS += -DHAVE_SKIP_CALLCHAIN_IDX
643 endif
644endif
645
646ifndef NO_LIBUNWIND
647 have_libunwind :=
648
649 $(call feature_check,libunwind-x86)
650 ifeq ($(feature-libunwind-x86), 1)
651 $(call detected,CONFIG_LIBUNWIND_X86)
652 CFLAGS += -DHAVE_LIBUNWIND_X86_SUPPORT
653 LDFLAGS += -lunwind-x86
654 EXTLIBS_LIBUNWIND += -lunwind-x86
655 have_libunwind = 1
656 endif
657
658 $(call feature_check,libunwind-aarch64)
659 ifeq ($(feature-libunwind-aarch64), 1)
660 $(call detected,CONFIG_LIBUNWIND_AARCH64)
661 CFLAGS += -DHAVE_LIBUNWIND_AARCH64_SUPPORT
662 LDFLAGS += -lunwind-aarch64
663 EXTLIBS_LIBUNWIND += -lunwind-aarch64
664 have_libunwind = 1
665 $(call feature_check,libunwind-debug-frame-aarch64)
666 ifneq ($(feature-libunwind-debug-frame-aarch64), 1)
667 msg := $(warning No debug_frame support found in libunwind-aarch64);
668 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME_AARCH64
669 endif
670 endif
671
672 ifneq ($(feature-libunwind), 1)
673 msg := $(warning No libunwind found. Please install libunwind-dev[el] >= 1.1 and/or set LIBUNWIND_DIR);
674 NO_LOCAL_LIBUNWIND := 1
675 else
676 have_libunwind := 1
677 $(call detected,CONFIG_LOCAL_LIBUNWIND)
678 endif
679
680 ifneq ($(have_libunwind), 1)
681 NO_LIBUNWIND := 1
682 endif
683else
684 NO_LOCAL_LIBUNWIND := 1
685endif
686
687ifndef NO_LIBBPF
688 ifneq ($(feature-bpf), 1)
689 msg := $(warning BPF API too old. Please install recent kernel headers. BPF support in 'perf record' is disabled.)
690 NO_LIBBPF := 1
691 endif
692endif
693
694ifdef BUILD_BPF_SKEL
695 $(call feature_check,clang-bpf-co-re)
696 ifeq ($(feature-clang-bpf-co-re), 0)
697 dummy := $(error Error: clang too old/not installed. Please install recent clang to build with BUILD_BPF_SKEL)
698 endif
699 ifeq ($(filter -DHAVE_LIBBPF_SUPPORT, $(CFLAGS)),)
700 dummy := $(error Error: BPF skeleton support requires libbpf)
701 endif
702 $(call detected,CONFIG_PERF_BPF_SKEL)
703 CFLAGS += -DHAVE_BPF_SKEL
704endif
705
706dwarf-post-unwind := 1
707dwarf-post-unwind-text := BUG
708
709# setup DWARF post unwinder
710ifdef NO_LIBUNWIND
711 ifdef NO_LIBDW_DWARF_UNWIND
712 msg := $(warning Disabling post unwind, no support found.);
713 dwarf-post-unwind := 0
714 else
715 dwarf-post-unwind-text := libdw
716 $(call detected,CONFIG_LIBDW_DWARF_UNWIND)
717 endif
718else
719 dwarf-post-unwind-text := libunwind
720 $(call detected,CONFIG_LIBUNWIND)
721 # Enable libunwind support by default.
722 ifndef NO_LIBDW_DWARF_UNWIND
723 NO_LIBDW_DWARF_UNWIND := 1
724 endif
725endif
726
727ifeq ($(dwarf-post-unwind),1)
728 CFLAGS += -DHAVE_DWARF_UNWIND_SUPPORT
729 $(call detected,CONFIG_DWARF_UNWIND)
730else
731 NO_DWARF_UNWIND := 1
732endif
733
734ifndef NO_LOCAL_LIBUNWIND
735 ifeq ($(SRCARCH),$(filter $(SRCARCH),arm arm64))
736 $(call feature_check,libunwind-debug-frame)
737 ifneq ($(feature-libunwind-debug-frame), 1)
738 msg := $(warning No debug_frame support found in libunwind);
739 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
740 endif
741 else
742 # non-ARM has no dwarf_find_debug_frame() function:
743 CFLAGS += -DNO_LIBUNWIND_DEBUG_FRAME
744 endif
745 EXTLIBS += $(LIBUNWIND_LIBS)
746 LDFLAGS += $(LIBUNWIND_LIBS)
747endif
748ifeq ($(findstring -static,${LDFLAGS}),-static)
749 # gcc -static links libgcc_eh which contans piece of libunwind
750 LIBUNWIND_LDFLAGS += -Wl,--allow-multiple-definition
751endif
752
753ifndef NO_LIBUNWIND
754 CFLAGS += -DHAVE_LIBUNWIND_SUPPORT
755 CFLAGS += $(LIBUNWIND_CFLAGS)
756 LDFLAGS += $(LIBUNWIND_LDFLAGS)
757 EXTLIBS += $(EXTLIBS_LIBUNWIND)
758endif
759
760ifeq ($(NO_SYSCALL_TABLE),0)
761 $(call detected,CONFIG_TRACE)
762else
763 ifndef NO_LIBAUDIT
764 $(call feature_check,libaudit)
765 ifneq ($(feature-libaudit), 1)
766 msg := $(warning No libaudit.h found, disables 'trace' tool, please install audit-libs-devel or libaudit-dev);
767 NO_LIBAUDIT := 1
768 else
769 CFLAGS += -DHAVE_LIBAUDIT_SUPPORT
770 EXTLIBS += -laudit
771 $(call detected,CONFIG_TRACE)
772 endif
773 endif
774endif
775
776ifndef NO_LIBCRYPTO
777 ifneq ($(feature-libcrypto), 1)
778 msg := $(warning No libcrypto.h found, disables jitted code injection, please install openssl-devel or libssl-dev);
779 NO_LIBCRYPTO := 1
780 else
781 CFLAGS += -DHAVE_LIBCRYPTO_SUPPORT
782 EXTLIBS += -lcrypto
783 $(call detected,CONFIG_CRYPTO)
784 endif
785endif
786
787ifdef NO_NEWT
788 NO_SLANG=1
789endif
790
791ifndef NO_SLANG
792 ifneq ($(feature-libslang), 1)
793 ifneq ($(feature-libslang-include-subdir), 1)
794 msg := $(warning slang not found, disables TUI support. Please install slang-devel, libslang-dev or libslang2-dev);
795 NO_SLANG := 1
796 else
797 CFLAGS += -DHAVE_SLANG_INCLUDE_SUBDIR
798 endif
799 endif
800 ifndef NO_SLANG
801 # Fedora has /usr/include/slang/slang.h, but ubuntu /usr/include/slang.h
802 CFLAGS += -DHAVE_SLANG_SUPPORT
803 EXTLIBS += -lslang
804 $(call detected,CONFIG_SLANG)
805 endif
806endif
807
808ifdef GTK2
809 FLAGS_GTK2=$(CFLAGS) $(LDFLAGS) $(EXTLIBS) $(shell $(PKG_CONFIG) --libs --cflags gtk+-2.0 2>/dev/null)
810 $(call feature_check,gtk2)
811 ifneq ($(feature-gtk2), 1)
812 msg := $(warning GTK2 not found, disables GTK2 support. Please install gtk2-devel or libgtk2.0-dev);
813 NO_GTK2 := 1
814 else
815 $(call feature_check,gtk2-infobar)
816 ifeq ($(feature-gtk2-infobar), 1)
817 GTK_CFLAGS := -DHAVE_GTK_INFO_BAR_SUPPORT
818 endif
819 CFLAGS += -DHAVE_GTK2_SUPPORT
820 GTK_CFLAGS += $(shell $(PKG_CONFIG) --cflags gtk+-2.0 2>/dev/null)
821 GTK_LIBS := $(shell $(PKG_CONFIG) --libs gtk+-2.0 2>/dev/null)
822 EXTLIBS += -ldl
823 endif
824endif
825
826ifdef NO_LIBPERL
827 CFLAGS += -DNO_LIBPERL
828else
829 PERL_EMBED_LDOPTS = $(shell perl -MExtUtils::Embed -e ldopts 2>/dev/null)
830 PERL_EMBED_LDFLAGS = $(call strip-libs,$(PERL_EMBED_LDOPTS))
831 PERL_EMBED_LIBADD = $(call grep-libs,$(PERL_EMBED_LDOPTS))
832 PERL_EMBED_CCOPTS = $(shell perl -MExtUtils::Embed -e ccopts 2>/dev/null)
833 PERL_EMBED_CCOPTS := $(filter-out -specs=%,$(PERL_EMBED_CCOPTS))
834 PERL_EMBED_CCOPTS := $(filter-out -flto=auto -ffat-lto-objects, $(PERL_EMBED_CCOPTS))
835 PERL_EMBED_LDOPTS := $(filter-out -specs=%,$(PERL_EMBED_LDOPTS))
836 FLAGS_PERL_EMBED=$(PERL_EMBED_CCOPTS) $(PERL_EMBED_LDOPTS)
837
838 ifneq ($(feature-libperl), 1)
839 CFLAGS += -DNO_LIBPERL
840 NO_LIBPERL := 1
841 msg := $(warning Missing perl devel files. Disabling perl scripting support, please install perl-ExtUtils-Embed/libperl-dev);
842 else
843 LDFLAGS += $(PERL_EMBED_LDFLAGS)
844 EXTLIBS += $(PERL_EMBED_LIBADD)
845 CFLAGS += -DHAVE_LIBPERL_SUPPORT
846 ifeq ($(CC_NO_CLANG), 0)
847 CFLAGS += -Wno-compound-token-split-by-macro
848 endif
849 $(call detected,CONFIG_LIBPERL)
850 endif
851endif
852
853ifeq ($(feature-timerfd), 1)
854 CFLAGS += -DHAVE_TIMERFD_SUPPORT
855else
856 msg := $(warning No timerfd support. Disables 'perf kvm stat live');
857endif
858
859disable-python = $(eval $(disable-python_code))
860define disable-python_code
861 CFLAGS += -DNO_LIBPYTHON
862 $(warning $1)
863 NO_LIBPYTHON := 1
864endef
865
866ifdef NO_LIBPYTHON
867 $(call disable-python,Python support disabled by user)
868else
869
870 ifndef PYTHON
871 $(call disable-python,No python interpreter was found: disables Python support - please install python-devel/python-dev)
872 else
873 PYTHON_WORD := $(call shell-wordify,$(PYTHON))
874
875 ifndef PYTHON_CONFIG
876 $(call disable-python,No 'python-config' tool was found: disables Python support - please install python-devel/python-dev)
877 else
878
879 ifneq ($(feature-libpython), 1)
880 $(call disable-python,No 'Python.h' (for Python 2.x support) was found: disables Python support - please install python-devel/python-dev)
881 else
882 LDFLAGS += $(PYTHON_EMBED_LDFLAGS)
883 EXTLIBS += $(PYTHON_EMBED_LIBADD)
884 LANG_BINDINGS += $(obj-perf)python/perf.so
885 CFLAGS += -DHAVE_LIBPYTHON_SUPPORT
886 $(call detected,CONFIG_LIBPYTHON)
887 endif
888 endif
889 endif
890endif
891
892
893ifndef NO_LIBBFD
894 ifeq ($(feature-libbfd), 1)
895 EXTLIBS += -lbfd -lopcodes
896 else
897 # we are on a system that requires -liberty and (maybe) -lz
898 # to link against -lbfd; test each case individually here
899
900 # call all detections now so we get correct
901 # status in VF output
902 $(call feature_check,libbfd-liberty)
903 $(call feature_check,libbfd-liberty-z)
904
905 ifeq ($(feature-libbfd-liberty), 1)
906 EXTLIBS += -lbfd -lopcodes -liberty
907 FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -ldl
908 else
909 ifeq ($(feature-libbfd-liberty-z), 1)
910 EXTLIBS += -lbfd -lopcodes -liberty -lz
911 FEATURE_CHECK_LDFLAGS-disassembler-four-args += -liberty -lz -ldl
912 endif
913 endif
914 $(call feature_check,disassembler-four-args)
915 endif
916
917 ifeq ($(feature-libbfd-buildid), 1)
918 CFLAGS += -DHAVE_LIBBFD_BUILDID_SUPPORT
919 else
920 msg := $(warning Old version of libbfd/binutils things like PE executable profiling will not be available);
921 endif
922endif
923
924ifdef NO_DEMANGLE
925 CFLAGS += -DNO_DEMANGLE
926else
927 ifdef HAVE_CPLUS_DEMANGLE_SUPPORT
928 EXTLIBS += -liberty
929 else
930 ifeq ($(filter -liberty,$(EXTLIBS)),)
931 $(call feature_check,cplus-demangle)
932
933 # we dont have neither HAVE_CPLUS_DEMANGLE_SUPPORT
934 # or any of 'bfd iberty z' trinity
935 ifeq ($(feature-cplus-demangle), 1)
936 EXTLIBS += -liberty
937 else
938 msg := $(warning No bfd.h/libbfd found, please install binutils-dev[el]/zlib-static/libiberty-dev to gain symbol demangling)
939 CFLAGS += -DNO_DEMANGLE
940 endif
941 endif
942 endif
943
944 ifneq ($(filter -liberty,$(EXTLIBS)),)
945 CFLAGS += -DHAVE_CPLUS_DEMANGLE_SUPPORT
946 endif
947endif
948
949ifneq ($(filter -lbfd,$(EXTLIBS)),)
950 CFLAGS += -DHAVE_LIBBFD_SUPPORT
951endif
952
953ifndef NO_ZLIB
954 ifeq ($(feature-zlib), 1)
955 CFLAGS += -DHAVE_ZLIB_SUPPORT
956 EXTLIBS += -lz
957 $(call detected,CONFIG_ZLIB)
958 else
959 NO_ZLIB := 1
960 endif
961endif
962
963ifndef NO_LZMA
964 ifeq ($(feature-lzma), 1)
965 CFLAGS += -DHAVE_LZMA_SUPPORT
966 EXTLIBS += -llzma
967 $(call detected,CONFIG_LZMA)
968 else
969 msg := $(warning No liblzma found, disables xz kernel module decompression, please install xz-devel/liblzma-dev);
970 NO_LZMA := 1
971 endif
972endif
973
974ifndef NO_LIBZSTD
975 ifeq ($(feature-libzstd), 1)
976 CFLAGS += -DHAVE_ZSTD_SUPPORT
977 CFLAGS += $(LIBZSTD_CFLAGS)
978 LDFLAGS += $(LIBZSTD_LDFLAGS)
979 EXTLIBS += -lzstd
980 $(call detected,CONFIG_ZSTD)
981 else
982 msg := $(warning No libzstd found, disables trace compression, please install libzstd-dev[el] and/or set LIBZSTD_DIR);
983 NO_LIBZSTD := 1
984 endif
985endif
986
987ifndef NO_LIBCAP
988 ifeq ($(feature-libcap), 1)
989 CFLAGS += -DHAVE_LIBCAP_SUPPORT
990 EXTLIBS += -lcap
991 $(call detected,CONFIG_LIBCAP)
992 else
993 msg := $(warning No libcap found, disables capability support, please install libcap-devel/libcap-dev);
994 NO_LIBCAP := 1
995 endif
996endif
997
998ifndef NO_BACKTRACE
999 ifeq ($(feature-backtrace), 1)
1000 CFLAGS += -DHAVE_BACKTRACE_SUPPORT
1001 endif
1002endif
1003
1004ifndef NO_LIBNUMA
1005 ifeq ($(feature-libnuma), 0)
1006 msg := $(warning No numa.h found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev);
1007 NO_LIBNUMA := 1
1008 else
1009 ifeq ($(feature-numa_num_possible_cpus), 0)
1010 msg := $(warning Old numa library found, disables 'perf bench numa mem' benchmark, please install numactl-devel/libnuma-devel/libnuma-dev >= 2.0.8);
1011 NO_LIBNUMA := 1
1012 else
1013 CFLAGS += -DHAVE_LIBNUMA_SUPPORT
1014 EXTLIBS += -lnuma
1015 $(call detected,CONFIG_NUMA)
1016 endif
1017 endif
1018endif
1019
1020ifdef HAVE_KVM_STAT_SUPPORT
1021 CFLAGS += -DHAVE_KVM_STAT_SUPPORT
1022endif
1023
1024ifeq ($(feature-disassembler-four-args), 1)
1025 CFLAGS += -DDISASM_FOUR_ARGS_SIGNATURE
1026endif
1027
1028ifeq (${IS_64_BIT}, 1)
1029 ifndef NO_PERF_READ_VDSO32
1030 $(call feature_check,compile-32)
1031 ifeq ($(feature-compile-32), 1)
1032 CFLAGS += -DHAVE_PERF_READ_VDSO32
1033 else
1034 NO_PERF_READ_VDSO32 := 1
1035 endif
1036 endif
1037 ifneq ($(SRCARCH), x86)
1038 NO_PERF_READ_VDSOX32 := 1
1039 endif
1040 ifndef NO_PERF_READ_VDSOX32
1041 $(call feature_check,compile-x32)
1042 ifeq ($(feature-compile-x32), 1)
1043 CFLAGS += -DHAVE_PERF_READ_VDSOX32
1044 else
1045 NO_PERF_READ_VDSOX32 := 1
1046 endif
1047 endif
1048else
1049 NO_PERF_READ_VDSO32 := 1
1050 NO_PERF_READ_VDSOX32 := 1
1051endif
1052
1053ifndef NO_LIBBABELTRACE
1054 $(call feature_check,libbabeltrace)
1055 ifeq ($(feature-libbabeltrace), 1)
1056 CFLAGS += -DHAVE_LIBBABELTRACE_SUPPORT $(LIBBABELTRACE_CFLAGS)
1057 LDFLAGS += $(LIBBABELTRACE_LDFLAGS)
1058 EXTLIBS += -lbabeltrace-ctf
1059 $(call detected,CONFIG_LIBBABELTRACE)
1060 else
1061 msg := $(warning No libbabeltrace found, disables 'perf data' CTF format support, please install libbabeltrace-dev[el]/libbabeltrace-ctf-dev);
1062 endif
1063endif
1064
1065ifndef NO_AUXTRACE
1066 ifeq ($(SRCARCH),x86)
1067 ifeq ($(feature-get_cpuid), 0)
1068 msg := $(warning Your gcc lacks the __get_cpuid() builtin, disables support for auxtrace/Intel PT, please install a newer gcc);
1069 NO_AUXTRACE := 1
1070 endif
1071 endif
1072 ifndef NO_AUXTRACE
1073 $(call detected,CONFIG_AUXTRACE)
1074 CFLAGS += -DHAVE_AUXTRACE_SUPPORT
1075 ifeq ($(feature-reallocarray), 0)
1076 CFLAGS += -DCOMPAT_NEED_REALLOCARRAY
1077 endif
1078 endif
1079endif
1080
1081ifndef NO_JVMTI
1082 ifneq (,$(wildcard /usr/sbin/update-java-alternatives))
1083 JDIR=$(shell /usr/sbin/update-java-alternatives -l | head -1 | awk '{print $$3}')
1084 else
1085 ifneq (,$(wildcard /usr/sbin/alternatives))
1086 JDIR=$(shell /usr/sbin/alternatives --display java | tail -1 | cut -d' ' -f 5 | sed -e 's%/jre/bin/java.%%g' -e 's%/bin/java.%%g')
1087 endif
1088 endif
1089 ifndef JDIR
1090 $(warning No alternatives command found, you need to set JDIR= to point to the root of your Java directory)
1091 NO_JVMTI := 1
1092 endif
1093endif
1094
1095ifndef NO_JVMTI
1096 FEATURE_CHECK_CFLAGS-jvmti := -I$(JDIR)/include -I$(JDIR)/include/linux
1097 $(call feature_check,jvmti)
1098 ifeq ($(feature-jvmti), 1)
1099 $(call detected_var,JDIR)
1100 ifndef NO_JVMTI_CMLR
1101 FEATURE_CHECK_CFLAGS-jvmti-cmlr := $(FEATURE_CHECK_CFLAGS-jvmti)
1102 $(call feature_check,jvmti-cmlr)
1103 ifeq ($(feature-jvmti-cmlr), 1)
1104 CFLAGS += -DHAVE_JVMTI_CMLR
1105 endif
1106 endif # NO_JVMTI_CMLR
1107 else
1108 $(warning No openjdk development package found, please install JDK package, e.g. openjdk-8-jdk, java-1.8.0-openjdk-devel)
1109 NO_JVMTI := 1
1110 endif
1111endif
1112
1113USE_CXX = 0
1114USE_CLANGLLVM = 0
1115ifdef LIBCLANGLLVM
1116 $(call feature_check,cxx)
1117 ifneq ($(feature-cxx), 1)
1118 msg := $(warning No g++ found, disable clang and llvm support. Please install g++)
1119 else
1120 $(call feature_check,llvm)
1121 $(call feature_check,llvm-version)
1122 ifneq ($(feature-llvm), 1)
1123 msg := $(warning No suitable libLLVM found, disabling builtin clang and LLVM support. Please install llvm-dev(el) (>= 3.9.0))
1124 else
1125 $(call feature_check,clang)
1126 ifneq ($(feature-clang), 1)
1127 msg := $(warning No suitable libclang found, disabling builtin clang and LLVM support. Please install libclang-dev(el) (>= 3.9.0))
1128 else
1129 CFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT
1130 CXXFLAGS += -DHAVE_LIBCLANGLLVM_SUPPORT -I$(shell $(LLVM_CONFIG) --includedir)
1131 $(call detected,CONFIG_CXX)
1132 $(call detected,CONFIG_CLANGLLVM)
1133 USE_CXX = 1
1134 USE_LLVM = 1
1135 USE_CLANG = 1
1136 ifneq ($(feature-llvm-version),1)
1137 msg := $(warning This version of LLVM is not tested. May cause build errors)
1138 endif
1139 endif
1140 endif
1141 endif
1142endif
1143
1144ifdef LIBPFM4
1145 $(call feature_check,libpfm4)
1146 ifeq ($(feature-libpfm4), 1)
1147 CFLAGS += -DHAVE_LIBPFM
1148 EXTLIBS += -lpfm
1149 ASCIIDOC_EXTRA = -aHAVE_LIBPFM=1
1150 $(call detected,CONFIG_LIBPFM4)
1151 else
1152 msg := $(warning libpfm4 not found, disables libpfm4 support. Please install libpfm4-dev);
1153 NO_LIBPFM4 := 1
1154 endif
1155endif
1156
1157ifdef LIBTRACEEVENT_DYNAMIC
1158 $(call feature_check,libtraceevent)
1159 ifeq ($(feature-libtraceevent), 1)
1160 EXTLIBS += -ltraceevent
1161 LIBTRACEEVENT_VERSION := $(shell $(PKG_CONFIG) --modversion libtraceevent)
1162 LIBTRACEEVENT_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1163 LIBTRACEEVENT_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1164 LIBTRACEEVENT_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEEVENT_VERSION)))
1165 LIBTRACEEVENT_VERSION_CPP := $(shell expr $(LIBTRACEEVENT_VERSION_1) \* 255 \* 255 + $(LIBTRACEEVENT_VERSION_2) \* 255 + $(LIBTRACEEVENT_VERSION_3))
1166 CFLAGS += -DLIBTRACEEVENT_VERSION=$(LIBTRACEEVENT_VERSION_CPP)
1167 else
1168 dummy := $(error Error: No libtraceevent devel library found, please install libtraceevent-devel);
1169 endif
1170endif
1171
1172ifdef LIBTRACEFS_DYNAMIC
1173 $(call feature_check,libtracefs)
1174 ifeq ($(feature-libtracefs), 1)
1175 EXTLIBS += -ltracefs
1176 LIBTRACEFS_VERSION := $(shell $(PKG_CONFIG) --modversion libtracefs)
1177 LIBTRACEFS_VERSION_1 := $(word 1, $(subst ., ,$(LIBTRACEFS_VERSION)))
1178 LIBTRACEFS_VERSION_2 := $(word 2, $(subst ., ,$(LIBTRACEFS_VERSION)))
1179 LIBTRACEFS_VERSION_3 := $(word 3, $(subst ., ,$(LIBTRACEFS_VERSION)))
1180 LIBTRACEFS_VERSION_CPP := $(shell expr $(LIBTRACEFS_VERSION_1) \* 255 \* 255 + $(LIBTRACEFS_VERSION_2) \* 255 + $(LIBTRACEFS_VERSION_3))
1181 CFLAGS += -DLIBTRACEFS_VERSION=$(LIBTRACEFS_VERSION_CPP)
1182 else
1183 dummy := $(error Error: No libtracefs devel library found, please install libtracefs-dev);
1184 endif
1185endif
1186
1187# Among the variables below, these:
1188# perfexecdir
1189# perf_include_dir
1190# perf_examples_dir
1191# template_dir
1192# mandir
1193# infodir
1194# htmldir
1195# ETC_PERFCONFIG (but not sysconfdir)
1196# can be specified as a relative path some/where/else;
1197# this is interpreted as relative to $(prefix) and "perf" at
1198# runtime figures out where they are based on the path to the executable.
1199# This can help installing the suite in a relocatable way.
1200
1201# Make the path relative to DESTDIR, not to prefix
1202ifndef DESTDIR
1203prefix ?= $(HOME)
1204endif
1205bindir_relative = bin
1206bindir = $(abspath $(prefix)/$(bindir_relative))
1207includedir_relative = include
1208includedir = $(abspath $(prefix)/$(includedir_relative))
1209mandir = share/man
1210infodir = share/info
1211perfexecdir = libexec/perf-core
1212perf_include_dir = lib/perf/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))
1245perf_include_dir_SQ = $(subst ','\'',$(perf_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 = $(perf_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 = $(prefix)/$(perf_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
1274# If we install to $(HOME) we keep the traceevent default:
1275# $(HOME)/.traceevent/plugins
1276# Otherwise we install plugins into the global $(libdir).
1277ifdef DESTDIR
1278plugindir=$(libdir)/traceevent/plugins
1279plugindir_SQ= $(subst ','\'',$(plugindir))
1280endif
1281
1282print_var = $(eval $(print_var_code)) $(info $(MSG))
1283define print_var_code
1284 MSG = $(shell printf '...%30s: %s' $(1) $($(1)))
1285endef
1286
1287ifeq ($(VF),1)
1288 # Display EXTRA features which are detected manualy
1289 # from here with feature_check call and thus cannot
1290 # be partof global state output.
1291 $(foreach feat,$(FEATURE_TESTS_EXTRA),$(call feature_print_status,$(feat),))
1292 $(call print_var,prefix)
1293 $(call print_var,bindir)
1294 $(call print_var,libdir)
1295 $(call print_var,sysconfdir)
1296 $(call print_var,LIBUNWIND_DIR)
1297 $(call print_var,LIBDW_DIR)
1298 $(call print_var,JDIR)
1299
1300 ifeq ($(dwarf-post-unwind),1)
1301 $(call feature_print_text,"DWARF post unwind library", $(dwarf-post-unwind-text))
1302 endif
1303 $(info )
1304endif
1305
1306$(call detected_var,bindir_SQ)
1307$(call detected_var,PYTHON_WORD)
1308ifneq ($(OUTPUT),)
1309$(call detected_var,OUTPUT)
1310endif
1311$(call detected_var,htmldir_SQ)
1312$(call detected_var,infodir_SQ)
1313$(call detected_var,mandir_SQ)
1314$(call detected_var,ETC_PERFCONFIG_SQ)
1315$(call detected_var,STRACE_GROUPS_DIR_SQ)
1316$(call detected_var,prefix_SQ)
1317$(call detected_var,perfexecdir_SQ)
1318$(call detected_var,perf_include_dir_SQ)
1319$(call detected_var,perf_examples_dir_SQ)
1320$(call detected_var,tipdir_SQ)
1321$(call detected_var,srcdir_SQ)
1322$(call detected_var,LIBDIR)
1323$(call detected_var,GTK_CFLAGS)
1324$(call detected_var,PERL_EMBED_CCOPTS)
1325$(call detected_var,PYTHON_EMBED_CCOPTS)
1326ifneq ($(BISON_FILE_PREFIX_MAP),)
1327$(call detected_var,BISON_FILE_PREFIX_MAP)
1328endif
1329
1330# re-generate FEATURE-DUMP as we may have called feature_check, found out
1331# extra libraries to add to LDFLAGS of some other test and then redo those
1332# tests, see the block about libbfd, disassembler-four-args, for instance.
1333$(shell rm -f $(FEATURE_DUMP_FILENAME))
1334$(foreach feat,$(FEATURE_TESTS),$(shell echo "$(call feature_assign,$(feat))" >> $(FEATURE_DUMP_FILENAME)))
1335
1336ifeq ($(feature_display),1)
1337 $(call feature_display_entries)
1338endif